diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-08-31 17:26:48 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-08-31 17:26:48 -0700 |
| commit | f36fc04e4cdda9e4c72ee504e7dc638f9a168863 (patch) | |
| tree | 27ccf1037fba7b0deeb5bfdfb748bd9cc97c293d | |
| parent | 26f8b7edc9eab56638274f5db90848a6df602081 (diff) | |
| parent | ba30011577330b7e29ecb5916d89c6db9fbc5b3d (diff) | |
Merge tag 'clk-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Michael Turquette:
"The clk framework changes for 4.3 are mostly updates to existing
drivers and the addition of new clock drivers. Stephen Boyd has also
done a lot of subsystem-wide driver clean-ups (thanks!). There are
also fixes to the framework core and changes to better split clock
provider drivers from clock consumer drivers"
* tag 'clk-for-linus-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (227 commits)
clk: s5pv210: add missing call to samsung_clk_of_add_provider()
clk: pistachio: correct critical clock list
clk: pistachio: Fix PLL rate calculation in integer mode
clk: pistachio: Fix override of clk-pll settings from boot loader
clk: pistachio: Fix 32bit integer overflows
clk: tegra: Fix some static checker problems
clk: qcom: Fix MSM8916 prng clock enable bit
clk: Add missing header for 'bool' definition to clk-conf.h
drivers/clk: appropriate __init annotation for const data
clk: rockchip: register pll mux before pll itself
clk: add bindings for the Ux500 clocks
clk/ARM: move Ux500 PRCC bases to the device tree
clk: remove duplicated code with __clk_set_parent_after
clk: Convert __clk_get_name(hw->clk) to clk_hw_get_name(hw)
clk: Constify clk_hw argument to provider APIs
clk: Hi6220: add stub clock driver
dt-bindings: clk: Hi6220: Document stub clock driver
dt-bindings: arm: Hi6220: add doc for SRAM controller
clk: atlas7: fix pll missed divide NR in fraction mode
clk: atlas7: fix bit field and its root clk for coresight_tpiu
...
320 files changed, 9096 insertions, 4940 deletions
diff --git a/Documentation/clk.txt b/Documentation/clk.txt index f463bdc37f88..5c4bc4d01d0c 100644 --- a/Documentation/clk.txt +++ b/Documentation/clk.txt @@ -71,12 +71,8 @@ the operations defined in clk.h: long (*round_rate)(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate); - long (*determine_rate)(struct clk_hw *hw, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk); + int (*determine_rate)(struct clk_hw *hw, + struct clk_rate_request *req); int (*set_parent)(struct clk_hw *hw, u8 index); u8 (*get_parent)(struct clk_hw *hw); int (*set_rate)(struct clk_hw *hw, diff --git a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt index c431c67524d6..c733e28e18e5 100644 --- a/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt +++ b/Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt @@ -127,6 +127,24 @@ Example: #clock-cells = <1>; }; + +Hisilicon Hi6220 SRAM controller + +Required properties: +- compatible : "hisilicon,hi6220-sramctrl", "syscon" +- reg : Register address and size + +Hisilicon's SoCs use sram for multiple purpose; on Hi6220 there have several +SRAM banks for power management, modem, security, etc. Further, use "syscon" +managing the common sram which can be shared by multiple modules. + +Example: + /*for Hi6220*/ + sram: sram@fff80000 { + compatible = "hisilicon,hi6220-sramctrl", "syscon"; + reg = <0x0 0xfff80000 0x0 0x12000>; + }; + ----------------------------------------------------------------------- Hisilicon HiP01 system controller diff --git a/Documentation/devicetree/bindings/arm/sp810.txt b/Documentation/devicetree/bindings/arm/sp810.txt new file mode 100644 index 000000000000..6808fb5dee40 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/sp810.txt @@ -0,0 +1,46 @@ +SP810 System Controller +----------------------- + +Required properties: + +- compatible: standard compatible string for a Primecell peripheral, + see Documentation/devicetree/bindings/arm/primecell.txt + for more details + should be: "arm,sp810", "arm,primecell" + +- reg: standard registers property, physical address and size + of the control registers + +- clock-names: from the common clock bindings, for more details see + Documentation/devicetree/bindings/clock/clock-bindings.txt; + should be: "refclk", "timclk", "apb_pclk" + +- clocks: from the common clock bindings, phandle and clock + specifier pairs for the entries of clock-names property + +- #clock-cells: from the common clock bindings; + should be: <1> + +- clock-output-names: from the common clock bindings; + should be: "timerclken0", "timerclken1", "timerclken2", "timerclken3" + +- assigned-clocks: from the common clock binding; + should be: clock specifier for each output clock of this + provider node + +- assigned-clock-parents: from the common clock binding; + should be: phandle of input clock listed in clocks + property with the highest frequency + +Example: + v2m_sysctl: sysctl@020000 { + compatible = "arm,sp810", "arm,primecell"; + reg = <0x020000 0x1000>; + clocks = <&v2m_refclk32khz>, <&v2m_refclk1mhz>, <&smbclk>; + clock-names = "refclk", "timclk", "apb_pclk"; + #clock-cells = <1>; + clock-output-names = "timerclken0", "timerclken1", "timerclken2", "timerclken3"; + assigned-clocks = <&v2m_sysctl 0>, <&v2m_sysctl 1>, <&v2m_sysctl 3>, <&v2m_sysctl 3>; + assigned-clock-parents = <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>, <&v2m_refclk1mhz>; + + }; diff --git a/Documentation/devicetree/bindings/clock/gpio-mux-clock.txt b/Documentation/devicetree/bindings/clock/gpio-mux-clock.txt new file mode 100644 index 000000000000..2be1e038ca62 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/gpio-mux-clock.txt @@ -0,0 +1,19 @@ +Binding for simple gpio clock multiplexer. + +This binding uses the common clock binding[1]. + +[1] Documentation/devicetree/bindings/clock/clock-bindings.txt + +Required properties: +- compatible : shall be "gpio-mux-clock". +- clocks: list of two references to parent clocks. +- #clock-cells : from common clock binding; shall be set to 0. +- select-gpios : GPIO reference for selecting the parent clock. + +Example: + clock { + compatible = "gpio-mux-clock"; + clocks = <&parentclk1>, <&parentclk2>; + #clock-cells = <0>; + select-gpios = <&gpio 1 GPIO_ACTIVE_HIGH>; + }; diff --git a/Documentation/devicetree/bindings/clock/hi6220-clock.txt b/Documentation/devicetree/bindings/clock/hi6220-clock.txt index 259e30af9597..e4d5feaebc29 100644 --- a/Documentation/devicetree/bindings/clock/hi6220-clock.txt +++ b/Documentation/devicetree/bindings/clock/hi6220-clock.txt @@ -15,19 +15,36 @@ Required Properties: - "hisilicon,hi6220-sysctrl" - "hisilicon,hi6220-mediactrl" - "hisilicon,hi6220-pmctrl" + - "hisilicon,hi6220-stub-clk" - reg: physical base address of the controller and length of memory mapped region. - #clock-cells: should be 1. -For example: +Optional Properties: + +- hisilicon,hi6220-clk-sram: phandle to the syscon managing the SoC internal sram; + the driver need use the sram to pass parameters for frequency change. + +- mboxes: use the label reference for the mailbox as the first parameter, the + second parameter is the channel number. + +Example 1: sys_ctrl: sys_ctrl@f7030000 { compatible = "hisilicon,hi6220-sysctrl", "syscon"; reg = <0x0 0xf7030000 0x0 0x2000>; #clock-cells = <1>; }; +Example 2: + stub_clock: stub_clock { + compatible = "hisilicon,hi6220-stub-clk"; + hisilicon,hi6220-clk-sram = <&sram>; + #clock-cells = <1>; + mboxes = <&mailbox 1>; + }; + Each clock is assigned an identifier and client nodes use this identifier to specify the clock which they consume. diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra124-dfll.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra124-dfll.txt new file mode 100644 index 000000000000..ee7e5fd4a50b --- /dev/null +++ b/Documentation/devicetree/bindings/clock/nvidia,tegra124-dfll.txt @@ -0,0 +1,79 @@ +NVIDIA Tegra124 DFLL FCPU clocksource + +This binding uses the common clock binding: +Documentation/devicetree/bindings/clock/clock-bindings.txt + +The DFLL IP block on Tegra is a root clocksource designed for clocking +the fast CPU cluster. It consists of a free-running voltage controlled +oscillator connected to the CPU voltage rail (VDD_CPU), and a closed loop +control module that will automatically adjust the VDD_CPU voltage by +communicating with an off-chip PMIC either via an I2C bus or via PWM signals. +Currently only the I2C mode is supported by these bindings. + +Required properties: +- compatible : should be "nvidia,tegra124-dfll" +- reg : Defines the following set of registers, in the order listed: + - registers for the DFLL control logic. + - registers for the I2C output logic. + - registers for the integrated I2C master controller. + - look-up table RAM for voltage register values. +- interrupts: Should contain the DFLL block interrupt. +- clocks: Must contain an entry for each entry in clock-names. + See clock-bindings.txt for details. +- clock-names: Must include the following entries: + - soc: Clock source for the DFLL control logic. + - ref: The closed loop reference clock + - i2c: Clock source for the integrated I2C master. +- resets: Must contain an entry for each entry in reset-names. + See ../reset/reset.txt for details. +- reset-names: Must include the following entries: + - dvco: Reset control for the DFLL DVCO. +- #clock-cells: Must be 0. +- clock-output-names: Name of the clock output. +- vdd-cpu-supply: Regulator for the CPU voltage rail that the DFLL + hardware will start controlling. The regulator will be queried for + the I2C register, control values and supported voltages. + +Required properties for the control loop parameters: +- nvidia,sample-rate: Sample rate of the DFLL control loop. +- nvidia,droop-ctrl: See the register CL_DVFS_DROOP_CTRL in the TRM. +- nvidia,force-mode: See the field DFLL_PARAMS_FORCE_MODE in the TRM. +- nvidia,cf: Numeric value, see the field DFLL_PARAMS_CF_PARAM in the TRM. +- nvidia,ci: Numeric value, see the field DFLL_PARAMS_CI_PARAM in the TRM. +- nvidia,cg: Numeric value, see the field DFLL_PARAMS_CG_PARAM in the TRM. + +Optional properties for the control loop parameters: +- nvidia,cg-scale: Boolean value, see the field DFLL_PARAMS_CG_SCALE in the TRM. + +Required properties for I2C mode: +- nvidia,i2c-fs-rate: I2C transfer rate, if using full speed mode. + +Example: + +clock@0,70110000 { + compatible = "nvidia,tegra124-dfll"; + reg = <0 0x70110000 0 0x100>, /* DFLL control */ + <0 0x70110000 0 0x100>, /* I2C output control */ + <0 0x70110100 0 0x100>, /* Integrated I2C controller */ + <0 0x70110200 0 0x100>; /* Look-up table RAM */ + interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&tegra_car TEGRA124_CLK_DFLL_SOC>, + <&tegra_car TEGRA124_CLK_DFLL_REF>, + <&tegra_car TEGRA124_CLK_I2C5>; + clock-names = "soc", "ref", "i2c"; + resets = <&tegra_car TEGRA124_RST_DFLL_DVCO>; + reset-names = "dvco"; + #clock-cells = <0>; + clock-output-names = "dfllCPU_out"; + vdd-cpu-supply = <&vdd_cpu>; + status = "okay"; + + nvidia,sample-rate = <12500>; + nvidia,droop-ctrl = <0x00000f00>; + nvidia,force-mode = <1>; + nvidia,cf = <10>; + nvidia,ci = <0>; + nvidia,cg = <2>; + + nvidia,i2c-fs-rate = <400000>; +}; diff --git a/Documentation/devicetree/bindings/clock/rockchip,rk3368-cru.txt b/Documentation/devicetree/bindings/clock/rockchip,rk3368-cru.txt new file mode 100644 index 000000000000..7c8bbcfed8d2 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/rockchip,rk3368-cru.txt @@ -0,0 +1,61 @@ +* Rockchip RK3368 Clock and Reset Unit + +The RK3368 clock controller generates and supplies clock to various +controllers within the SoC and also implements a reset controller for SoC +peripherals. + +Required Properties: + +- compatible: should be "rockchip,rk3368-cru" +- reg: physical base address of the controller and length of memory mapped + region. +- #clock-cells: should be 1. +- #reset-cells: should be 1. + +Optional Properties: + +- rockchip,grf: phandle to the syscon managing the "general register files" + If missing, pll rates are not changeable, due to the missing pll lock status. + +Each clock is assigned an identifier and client nodes can use this identifier +to specify the clock which they consume. All available clocks are defined as +preprocessor macros in the dt-bindings/clock/rk3368-cru.h headers and can be +used in device tree sources. Similar macros exist for the reset sources in +these files. + +External clocks: + +There are several clocks that are generated outside the SoC. It is expected +that they are defined using standard clock bindings with following +clock-output-names: + - "xin24m" - crystal input - required, + - "xin32k" - rtc clock - optional, + - "ext_i2s" - external I2S clock - optional, + - "ext_gmac" - external GMAC clock - optional + - "ext_hsadc" - external HSADC clock - optional, + - "ext_isp" - external ISP clock - optional, + - "ext_jtag" - external JTAG clock - optional + - "ext_vip" - external VIP clock - optional, + - "usbotg_out" - output clock of the pll in the otg phy + +Example: Clock controller node: + + cru: clock-controller@ff760000 { + compatible = "rockchip,rk3368-cru"; + reg = <0x0 0xff760000 0x0 0x1000>; + rockchip,grf = <&grf>; + #clock-cells = <1>; + #reset-cells = <1>; + }; + +Example: UART controller node that consumes the clock generated by the clock + controller: + + uart0: serial@10124000 { + compatible = "snps,dw-apb-uart"; + reg = <0x10124000 0x400>; + interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>; + reg-shift = <2>; + reg-io-width = <1>; + clocks = <&cru SCLK_UART0>; + }; diff --git a/Documentation/devicetree/bindings/clock/ux500.txt b/Documentation/devicetree/bindings/clock/ux500.txt new file mode 100644 index 000000000000..e52bd4b72348 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/ux500.txt @@ -0,0 +1,64 @@ +Clock bindings for ST-Ericsson Ux500 clocks + +Required properties : +- compatible : shall contain only one of the following: + "stericsson,u8500-clks" + "stericsson,u8540-clks" + "stericsson,u9540-clks" +- reg : shall contain base register location and length for + CLKRST1, 2, 3, 5, and 6 in an array. Note the absence of + CLKRST4, which does not exist. + +Required subnodes: +- prcmu-clock: a subnode with one clock cell for PRCMU (power, + reset, control unit) clocks. The cell indicates which PRCMU + clock in the prcmu-clock node the consumer wants to use. +- prcc-periph-clock: a subnode with two clock cells for + PRCC (programmable reset- and clock controller) peripheral clocks. + The first cell indicates which PRCC block the consumer + wants to use, possible values are 1, 2, 3, 5, 6. The second + cell indicates which clock inside the PRCC block it wants, + possible values are 0 thru 31. +- prcc-kernel-clock: a subnode with two clock cells for + PRCC (programmable reset- and clock controller) kernel clocks + The first cell indicates which PRCC block the consumer + wants to use, possible values are 1, 2, 3, 5, 6. The second + cell indicates which clock inside the PRCC block it wants, + possible values are 0 thru 31. +- rtc32k-clock: a subnode with zero clock cells for the 32kHz + RTC clock. +- smp-twd-clock: a subnode for the ARM SMP Timer Watchdog cluster + with zero clock cells. + +Example: + +clocks { + compatible = "stericsson,u8500-clks"; + /* + * Registers for the CLKRST block on peripheral + * groups 1, 2, 3, 5, 6, + */ + reg = <0x8012f000 0x1000>, <0x8011f000 0x1000>, + <0x8000f000 0x1000>, <0xa03ff000 0x1000>, + <0xa03cf000 0x1000>; + + prcmu_clk: prcmu-clock { + #clock-cells = <1>; + }; + + prcc_pclk: prcc-periph-clock { + #clock-cells = <2>; + }; + + prcc_kclk: prcc-kernel-clock { + #clock-cells = <2>; + }; + + rtc_clk: rtc32k-clock { + #clock-cells = <0>; + }; + + smp_twd_clk: smp-twd-clock { + #clock-cells = <0>; + }; +}; diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi index b8f81fb418ce..c5fbde3afcf6 100644 --- a/arch/arm/boot/dts/ste-dbx5x0.dtsi +++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi @@ -220,6 +220,13 @@ clocks { compatible = "stericsson,u8500-clks"; + /* + * Registers for the CLKRST block on peripheral + * groups 1, 2, 3, 5, 6, + */ + reg = <0x8012f000 0x1000>, <0x8011f000 0x1000>, + <0x8000f000 0x1000>, <0xa03ff000 0x1000>, + <0xa03cf000 0x1000>; prcmu_clk: prcmu-clock { #clock-cells = <1>; diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi index 61c03d1fe530..ab0e131587bb 100644 --- a/arch/arm/boot/dts/sun4i-a10.dtsi +++ b/arch/arm/boot/dts/sun4i-a10.dtsi @@ -241,6 +241,7 @@ compatible = "allwinner,sun4i-a10-axi-gates-clk"; reg = <0x01c2005c 0x4>; clocks = <&axi>; + clock-indices = <0>; clock-output-names = "axi_dram"; }; @@ -257,17 +258,36 @@ compatible = "allwinner,sun4i-a10-ahb-gates-clk"; reg = <0x01c20060 0x8>; clocks = <&ahb>; + clock-indices = <0>, <1>, + <2>, <3>, + <4>, <5>, <6>, + <7>, <8>, <9>, + <10>, <11>, <12>, + <13>, <14>, <16>, + <17>, <18>, <20>, + <21>, <22>, <23>, + <24>, <25>, <26>, + <32>, <33>, <34>, + <35>, <36>, <37>, + <40>, <41>, <43>, + <44>, <45>, + <46>, <47>, + <50>, <52>; clock-output-names = "ahb_usb0", "ahb_ehci0", - "ahb_ohci0", "ahb_ehci1", "ahb_ohci1", "ahb_ss", - "ahb_dma", "ahb_bist", "ahb_mmc0", "ahb_mmc1", - "ahb_mmc2", "ahb_mmc3", "ahb_ms", "ahb_nand", - "ahb_sdram", "ahb_ace", "ahb_emac", "ahb_ts", - "ahb_spi0", "ahb_spi1", "ahb_spi2", "ahb_spi3", - "ahb_pata", "ahb_sata", "ahb_gps", "ahb_ve", - "ahb_tvd", "ahb_tve0", "ahb_tve1", "ahb_lcd0", - "ahb_lcd1", "ahb_csi0", "ahb_csi1", "ahb_hdmi", - "ahb_de_be0", "ahb_de_be1", "ahb_de_fe0", - "ahb_de_fe1", "ahb_mp", "ahb_mali400"; + "ahb_ohci0", "ahb_ehci1", + "ahb_ohci1", "ahb_ss", "ahb_dma", + "ahb_bist", "ahb_mmc0", "ahb_mmc1", + "ahb_mmc2", "ahb_mmc3", "ahb_ms", + "ahb_nand", "ahb_sdram", "ahb_ace", + "ahb_emac", "ahb_ts", "ahb_spi0", + "ahb_spi1", "ahb_spi2", "ahb_spi3", + "ahb_pata", "ahb_sata", "ahb_gps", + "ahb_ve", "ahb_tvd", "ahb_tve0", + "ahb_tve1", "ahb_lcd0", "ahb_lcd1", + "ahb_csi0", "ahb_csi1", "ahb_hdmi", + "ahb_de_be0", "ahb_de_be1", + "ahb_de_fe0", "ahb_de_fe1", + "ahb_mp", "ahb_mali400"; }; apb0: apb0@01c20054 { @@ -283,9 +303,14 @@ compatible = "allwinner,sun4i-a10-apb0-gates-clk"; reg = <0x01c20068 0x4>; clocks = <&apb0>; + clock-indices = <0>, <1>, + <2>, <3>, + <5>, <6>, + <7>, <10>; clock-output-names = "apb0_codec", "apb0_spdif", - "apb0_ac97", "apb0_iis", "apb0_pio", "apb0_ir0", - "apb0_ir1", "apb0_keypad"; + "apb0_ac97", "apb0_iis", + "apb0_pio", "apb0_ir0", + "apb0_ir1", "apb0_keypad"; }; apb1: clk@01c20058 { @@ -301,12 +326,22 @@ compatible = "allwinner,sun4i-a10-apb1-gates-clk"; reg = <0x01c2006c 0x4>; clocks = <&apb1>; + clock-indices = <0>, <1>, + <2>, <4>, + <5>, <6>, + <7>, <16>, + <17>, <18>, + <19>, <20>, + <21>, <22>, + <23>; clock-output-names = "apb1_i2c0", "apb1_i2c1", - "apb1_i2c2", "apb1_can", "apb1_scr", - "apb1_ps20", "apb1_ps21", "apb1_uart0", - "apb1_uart1", "apb1_uart2", "apb1_uart3", - "apb1_uart4", "apb1_uart5", "apb1_uart6", - "apb1_uart7"; + "apb1_i2c2", "apb1_can", + "apb1_scr", "apb1_ps20", + "apb1_ps21", "apb1_uart0", + "apb1_uart1", "apb1_uart2", + "apb1_uart3", "apb1_uart4", + "apb1_uart5", "apb1_uart6", + "apb1_uart7"; }; nand_clk: clk@01c20080 { diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi index f11efb722bbb..a513b416a807 100644 --- a/arch/arm/boot/dts/sun5i-a10s.dtsi +++ b/arch/arm/boot/dts/sun5i-a10s.dtsi @@ -85,6 +85,17 @@ compatible = "allwinner,sun5i-a10s-ahb-gates-clk"; reg = <0x01c20060 0x8>; clocks = <&ahb>; + clock-indices = <0>, <1>, + <2>, <5>, <6>, + <7>, <8>, <9>, + <10>, <13>, + <14>, <17>, <18>, + <20>, <21>, <22>, + <26>, <28>, <32>, + <34>, <36>, <40>, + <43>, <44>, + <46>, <51>, + <52>; clock-output-names = "ahb_usbotg", "ahb_ehci", "ahb_ohci", "ahb_ss", "ahb_dma", "ahb_bist", "ahb_mmc0", "ahb_mmc1", @@ -103,6 +114,9 @@ compatible = "allwinner,sun5i-a10s-apb0-gates-clk"; reg = <0x01c20068 0x4>; clocks = <&apb0>; + clock-indices = <0>, <3>, + <5>, <6>, + <10>; clock-output-names = "apb0_codec", "apb0_iis", "apb0_pio", "apb0_ir", "apb0_keypad"; @@ -113,9 +127,14 @@ compatible = "allwinner,sun5i-a10s-apb1-gates-clk"; reg = <0x01c2006c 0x4>; clocks = <&apb1>; + clock-indices = <0>, <1>, + <2>, <16>, + <17>, <18>, + <19>; clock-output-names = "apb1_i2c0", "apb1_i2c1", - "apb1_i2c2", "apb1_uart0", "apb1_uart1", - "apb1_uart2", "apb1_uart3"; + "apb1_i2c2", "apb1_uart0", + "apb1_uart1", "apb1_uart2", + "apb1_uart3"; }; }; diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi index 976d4faa2179..f3631c9c6fa2 100644 --- a/arch/arm/boot/dts/sun5i-a13.dtsi +++ b/arch/arm/boot/dts/sun5i-a13.dtsi @@ -104,6 +104,16 @@ compatible = "allwinner,sun5i-a13-ahb-gates-clk"; reg = <0x01c20060 0x8>; clocks = <&ahb>; + clock-indices = <0>, <1>, + <2>, <5>, <6>, + <7>, <8>, <9>, + <10>, <13>, + <14>, <20>, + <21>, <22>, + <28>, <32>, <36>, + <40>, <44>, + <46>, <51>, + <52>; clock-output-names = "ahb_usbotg", "ahb_ehci", "ahb_ohci", "ahb_ss", "ahb_dma", "ahb_bist", "ahb_mmc0", "ahb_mmc1", @@ -121,6 +131,8 @@ compatible = "allwinner,sun5i-a13-apb0-gates-clk"; reg = <0x01c20068 0x4>; clocks = <&apb0>; + clock-indices = <0>, <5>, + <6>; clock-output-names = "apb0_codec", "apb0_pio", "apb0_ir"; }; @@ -130,8 +142,12 @@ compatible = "allwinner,sun5i-a13-apb1-gates-clk"; reg = <0x01c2006c 0x4>; clocks = <&apb1>; + clock-indices = <0>, <1>, + <2>, <17>, + <19>; clock-output-names = "apb1_i2c0", "apb1_i2c1", - "apb1_i2c2", "apb1_uart1", "apb1_uart3"; + "apb1_i2c2", "apb1_uart1", + "apb1_uart3"; }; }; }; diff --git a/arch/arm/boot/dts/sun5i.dtsi b/arch/arm/boot/dts/sun5i.dtsi index 54b097830434..427c0e7289fa 100644 --- a/arch/arm/boot/dts/sun5i.dtsi +++ b/arch/arm/boot/dts/sun5i.dtsi @@ -178,6 +178,7 @@ compatible = "allwinner,sun4i-a10-axi-gates-clk"; reg = <0x01c2005c 0x4>; clocks = <&axi>; + clock-indices = <0>; clock-output-names = "axi_dram"; }; diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi index 008047a018cf..3ec456fa03a4 100644 --- a/arch/arm/boot/dts/sun6i-a31.dtsi +++ b/arch/arm/boot/dts/sun6i-a31.dtsi @@ -252,6 +252,20 @@ compatible = "allwinner,sun6i-a31-ahb1-gates-clk"; reg = <0x01c20060 0x8>; clocks = <&ahb1>; + clock-indices = <1>, <5>, + <6>, <8>, <9>, + <10>, <11>, <12>, + <13>, <14>, + <17>, <18>, <19>, + <20>, <21>, <22>, + <23>, <24>, <26>, + <27>, <29>, + <30>, <31>, <32>, + <36>, <37>, <40>, + <43>, <44>, <45>, + <46>, <47>, <50>, + <52>, <55>, <56>, + <57>, <58>; clock-output-names = "ahb1_mipidsi", "ahb1_ss", "ahb1_dma", "ahb1_mmc0", "ahb1_mmc1", "ahb1_mmc2", "ahb1_mmc3", "ahb1_nand1", @@ -281,6 +295,9 @@ compatible = "allwinner,sun6i-a31-apb1-gates-clk"; reg = <0x01c20068 0x4>; clocks = <&apb1>; + clock-indices = <0>, <4>, + <5>, <12>, + <13>; clock-output-names = "apb1_codec", "apb1_digital_mic", "apb1_pio", "apb1_daudio0", "apb1_daudio1"; @@ -299,6 +316,10 @@ compatible = "allwinner,sun6i-a31-apb2-gates-clk"; reg = <0x01c2006c 0x4>; clocks = <&apb2>; + clock-indices = <0>, <1>, + <2>, <3>, <16>, + <17>, <18>, <19>, + <20>, <21>; clock-output-names = "apb2_i2c0", "apb2_i2c1", "apb2_i2c2", "apb2_i2c3", "apb2_uart0", "apb2_uart1", @@ -384,6 +405,9 @@ compatible = "allwinner,sun6i-a31-usb-clk"; reg = <0x01c200cc 0x4>; clocks = <&osc24M>; + clock-indices = <8>, <9>, <10>, + <16>, <17>, + <18>; clock-output-names = "usb_phy0", "usb_phy1", "usb_phy2", "usb_ohci0", "usb_ohci1", "usb_ohci2"; diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi index 6a63f30c9a69..ca0b01a96c52 100644 --- a/arch/arm/boot/dts/sun7i-a20.dtsi +++ b/arch/arm/boot/dts/sun7i-a20.dtsi @@ -267,6 +267,19 @@ compatible = "allwinner,sun7i-a20-ahb-gates-clk"; reg = <0x01c20060 0x8>; clocks = <&ahb>; + clock-indices = <0>, <1>, + <2>, <3>, <4>, + <5>, <6>, <7>, <8>, + <9>, <10>, <11>, <12>, + <13>, <14>, <16>, + <17>, <18>, <20>, <21>, + <22>, <23>, <25>, + <28>, <32>, <33>, <34>, + <35>, <36>, <37>, <40>, + <41>, <42>, <43>, + <44>, <45>, <46>, + <47>, <49>, <50>, + <52>; clock-output-names = "ahb_usb0", "ahb_ehci0", "ahb_ohci0", "ahb_ehci1", "ahb_ohci1", "ahb_ss", "ahb_dma", "ahb_bist", "ahb_mmc0", @@ -295,6 +308,10 @@ compatible = "allwinner,sun7i-a20-apb0-gates-clk"; reg = <0x01c20068 0x4>; clocks = <&apb0>; + clock-indices = <0>, <1>, + <2>, <3>, <4>, + <5>, <6>, <7>, + <8>, <10>; clock-output-names = "apb0_codec", "apb0_spdif", "apb0_ac97", "apb0_iis0", "apb0_iis1", "apb0_pio", "apb0_ir0", "apb0_ir1", @@ -314,6 +331,12 @@ compatible = "allwinner,sun7i-a20-apb1-gates-clk"; reg = <0x01c2006c 0x4>; clocks = <&apb1>; + clock-indices = <0>, <1>, + <2>, <3>, <4>, + <5>, <6>, <7>, + <15>, <16>, <17>, + <18>, <19>, <20>, + <21>, <22>, <23>; clock-output-names = "apb1_i2c0", "apb1_i2c1", "apb1_i2c2", "apb1_i2c3", "apb1_can", "apb1_scr", "apb1_ps20", "apb1_ps21", diff --git a/arch/arm/boot/dts/sun8i-a23-a33.dtsi b/arch/arm/boot/dts/sun8i-a23-a33.dtsi index 7abd0ae3143d..c318c770b6c1 100644 --- a/arch/arm/boot/dts/sun8i-a23-a33.dtsi +++ b/arch/arm/boot/dts/sun8i-a23-a33.dtsi @@ -180,6 +180,15 @@ compatible = "allwinner,sun8i-a23-ahb1-gates-clk"; reg = <0x01c20060 0x8>; clocks = <&ahb1>; + clock-indices = <1>, <6>, + <8>, <9>, <10>, + <13>, <14>, + <19>, <20>, + <21>, <24>, <26>, + <29>, <32>, <36>, + <40>, <44>, <46>, + <52>, <54>, + <57>; clock-output-names = "ahb1_mipidsi", "ahb1_dma", "ahb1_mmc0", "ahb1_mmc1", "ahb1_mmc2", "ahb1_nand", "ahb1_sdram", @@ -196,6 +205,8 @@ compatible = "allwinner,sun8i-a23-apb1-gates-clk"; reg = <0x01c20068 0x4>; clocks = <&apb1>; + clock-indices = <0>, <5>, + <12>, <13>; clock-output-names = "apb1_codec", "apb1_pio", "apb1_daudio0", "apb1_daudio1"; }; @@ -213,6 +224,10 @@ compatible = "allwinner,sun8i-a23-apb2-gates-clk"; reg = <0x01c2006c 0x4>; clocks = <&apb2>; + clock-indices = <0>, <1>, + <2>, <16>, + <17>, <18>, + <19>, <20>; clock-output-names = "apb2_i2c0", "apb2_i2c1", "apb2_i2c2", "apb2_uart0", "apb2_uart1", "apb2_uart2", diff --git a/arch/arm/boot/dts/sun9i-a80.dtsi b/arch/arm/boot/dts/sun9i-a80.dtsi index a43ad779ee2f..5908e3dcf965 100644 --- a/arch/arm/boot/dts/sun9i-a80.dtsi +++ b/arch/arm/boot/dts/sun9i-a80.dtsi @@ -277,9 +277,12 @@ compatible = "allwinner,sun9i-a80-ahb0-gates-clk"; reg = <0x06000580 0x4>; clocks = <&ahb0>; - clock-indices = <0>, <1>, <3>, <5>, <8>, <12>, <13>, - <14>, <15>, <16>, <18>, <20>, <21>, - <22>, <23>; + clock-indices = <0>, <1>, <3>, + <5>, <8>, <12>, + <13>, <14>, + <15>, <16>, <18>, + <20>, <21>, <22>, + <23>; clock-output-names = "ahb0_fd", "ahb0_ve", "ahb0_gpu", "ahb0_ss", "ahb0_sd", "ahb0_nand1", "ahb0_nand0", "ahb0_sdram", @@ -293,7 +296,10 @@ compatible = "allwinner,sun9i-a80-ahb1-gates-clk"; reg = <0x06000584 0x4>; clocks = <&ahb1>; - clock-indices = <0>, <1>, <17>, <21>, <22>, <23>, <24>; + clock-indices = <0>, <1>, + <17>, <21>, + <22>, <23>, + <24>; clock-output-names = "ahb1_usbotg", "ahb1_usbhci", "ahb1_gmac", "ahb1_msgbox", "ahb1_spinlock", "ahb1_hstimer", @@ -305,8 +311,9 @@ compatible = "allwinner,sun9i-a80-ahb2-gates-clk"; reg = <0x06000588 0x4>; clocks = <&ahb2>; - clock-indices = <0>, <1>, <2>, <4>, <5>, <7>, <8>, - <11>; + clock-indices = <0>, <1>, + <2>, <4>, <5>, + <7>, <8>, <11>; clock-output-names = "ahb2_lcd0", "ahb2_lcd1", "ahb2_edp", "ahb2_csi", "ahb2_hdmi", "ahb2_de", "ahb2_mp", "ahb2_mipi_dsi"; @@ -317,8 +324,10 @@ compatible = "allwinner,sun9i-a80-apb0-gates-clk"; reg = <0x06000590 0x4>; clocks = <&apb0>; - clock-indices = <1>, <5>, <11>, <12>, <13>, <15>, - <17>, <18>, <19>; + clock-indices = <1>, <5>, + <11>, <12>, <13>, + <15>, <17>, <18>, + <19>; clock-output-names = "apb0_spdif", "apb0_pio", "apb0_ac97", "apb0_i2s0", "apb0_i2s1", "apb0_lradc", "apb0_gpadc", "apb0_twd", @@ -330,8 +339,11 @@ compatible = "allwinner,sun9i-a80-apb1-gates-clk"; reg = <0x06000594 0x4>; clocks = <&apb1>; - clock-indices = <0>, <1>, <2>, <3>, <4>, - <16>, <17>, <18>, <19>, <20>, <21>; + clock-indices = <0>, <1>, + <2>, <3>, <4>, + <16>, <17>, + <18>, <19>, + <20>, <21>; clock-output-names = "apb1_i2c0", "apb1_i2c1", "apb1_i2c2", "apb1_i2c3", "apb1_i2c4", "apb1_uart0", "apb1_uart1", diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c index eaf58f88ef5d..685826c4a710 100644 --- a/arch/arm/mach-at91/at91rm9200.c +++ b/arch/arm/mach-at91/at91rm9200.c @@ -8,7 +8,6 @@ * Licensed under GPLv2 or later. */ -#include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_platform.h> diff --git a/arch/arm/mach-hisi/hisilicon.c b/arch/arm/mach-hisi/hisilicon.c index c6bd7c7bd4aa..8cc62150116a 100644 --- a/arch/arm/mach-hisi/hisilicon.c +++ b/arch/arm/mach-hisi/hisilicon.c @@ -11,7 +11,6 @@ * published by the Free Software Foundation. */ -#include <linux/clk-provider.h> #include <linux/clocksource.h> #include <linux/irqchip.h> diff --git a/arch/arm/mach-keystone/pm_domain.c b/arch/arm/mach-keystone/pm_domain.c index edea697e8253..e283939a216f 100644 --- a/arch/arm/mach-keystone/pm_domain.c +++ b/arch/arm/mach-keystone/pm_domain.c @@ -16,7 +16,6 @@ #include <linux/pm_runtime.h> #include <linux/pm_clock.h> #include <linux/platform_device.h> -#include <linux/clk-provider.h> #include <linux/of.h> static struct dev_pm_domain keystone_pm_domain = { diff --git a/arch/arm/mach-mvebu/board-v7.c b/arch/arm/mach-mvebu/board-v7.c index afee9083ad92..9f739f3cad4c 100644 --- a/arch/arm/mach-mvebu/board-v7.c +++ b/arch/arm/mach-mvebu/board-v7.c @@ -14,7 +14,6 @@ #include <linux/kernel.h> #include <linux/init.h> -#include <linux/clk-provider.h> #include <linux/of_address.h> #include <linux/of_fdt.h> #include <linux/of_platform.h> diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 903c85be2897..7892c7d3b6f4 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -12,8 +12,7 @@ obj-y := id.o io.o control.o mux.o devices.o fb.o serial.o timer.o pm.o \ hwmod-common = omap_hwmod.o omap_hwmod_reset.o \ omap_hwmod_common_data.o -clock-common = clock.o clock_common_data.o \ - clkt_dpll.o clkt_clksel.o +clock-common = clock.o secure-common = omap-smc.o omap-secure.o obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common) @@ -182,24 +181,17 @@ obj-$(CONFIG_SOC_DRA7XX) += $(clockdomain-common) obj-$(CONFIG_SOC_DRA7XX) += clockdomains7xx_data.o # Clock framework -obj-$(CONFIG_ARCH_OMAP2) += $(clock-common) clock2xxx.o +obj-$(CONFIG_ARCH_OMAP2) += $(clock-common) obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpllcore.o obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_virt_prcm_set.o -obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpll.o clkt_iclk.o -obj-$(CONFIG_SOC_OMAP2430) += clock2430.o -obj-$(CONFIG_ARCH_OMAP3) += $(clock-common) clock3xxx.o -obj-$(CONFIG_ARCH_OMAP3) += clock34xx.o clkt34xx_dpll3m2.o -obj-$(CONFIG_ARCH_OMAP3) += clock3517.o clock36xx.o -obj-$(CONFIG_ARCH_OMAP3) += dpll3xxx.o -obj-$(CONFIG_ARCH_OMAP3) += clkt_iclk.o +obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpll.o +obj-$(CONFIG_ARCH_OMAP3) += $(clock-common) +obj-$(CONFIG_ARCH_OMAP3) += clkt34xx_dpll3m2.o obj-$(CONFIG_ARCH_OMAP4) += $(clock-common) -obj-$(CONFIG_ARCH_OMAP4) += dpll3xxx.o dpll44xx.o -obj-$(CONFIG_SOC_AM33XX) += $(clock-common) dpll3xxx.o +obj-$(CONFIG_SOC_AM33XX) += $(clock-common) obj-$(CONFIG_SOC_OMAP5) += $(clock-common) -obj-$(CONFIG_SOC_OMAP5) += dpll3xxx.o dpll44xx.o obj-$(CONFIG_SOC_DRA7XX) += $(clock-common) -obj-$(CONFIG_SOC_DRA7XX) += dpll3xxx.o dpll44xx.o -obj-$(CONFIG_SOC_AM43XX) += $(clock-common) dpll3xxx.o +obj-$(CONFIG_SOC_AM43XX) += $(clock-common) # OMAP2 clock rate set data (old "OPP" data) obj-$(CONFIG_SOC_OMAP2420) += opp2420_data.o diff --git a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c index eb69acf21014..3f6521313c93 100644 --- a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c +++ b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c @@ -23,12 +23,13 @@ #include "clock.h" #include "clock3xxx.h" -#include "clock34xx.h" #include "sdrc.h" #include "sram.h" #define CYCLES_PER_MHZ 1000000 +struct clk *sdrc_ick_p, *arm_fck_p; + /* * CORE DPLL (DPLL3) M2 divider rate programming functions * @@ -60,12 +61,14 @@ int omap3_core_dpll_m2_set_rate(struct clk_hw *hw, unsigned long rate, if (!clk || !rate) return -EINVAL; - validrate = omap2_clksel_round_rate_div(clk, rate, &new_div); + new_div = DIV_ROUND_UP(parent_rate, rate); + validrate = parent_rate / new_div; + if (validrate != rate) return -EINVAL; - sdrcrate = __clk_get_rate(sdrc_ick_p); - clkrate = __clk_get_rate(hw->clk); + sdrcrate = clk_get_rate(sdrc_ick_p); + clkrate = clk_hw_get_rate(hw); if (rate > clkrate) sdrcrate <<= ((rate / clkrate) >> 1); else @@ -83,7 +86,7 @@ int omap3_core_dpll_m2_set_rate(struct clk_hw *hw, unsigned long rate, /* * XXX This only needs to be done when the CPU frequency changes */ - _mpurate = __clk_get_rate(arm_fck_p) / CYCLES_PER_MHZ; + _mpurate = clk_get_rate(arm_fck_p) / CYCLES_PER_MHZ; c = (_mpurate << SDRC_MPURATE_SCALE) >> SDRC_MPURATE_BASE_SHIFT; c += 1; /* for safety */ c *= SDRC_MPURATE_LOOPS; diff --git a/arch/arm/mach-omap2/clkt_clksel.c b/arch/arm/mach-omap2/clkt_clksel.c deleted file mode 100644 index 7ee26108ac0d..000000000000 --- a/arch/arm/mach-omap2/clkt_clksel.c +++ /dev/null @@ -1,466 +0,0 @@ -/* - * clkt_clksel.c - OMAP2/3/4 clksel clock functions - * - * Copyright (C) 2005-2008 Texas Instruments, Inc. - * Copyright (C) 2004-2010 Nokia Corporation - * - * Contacts: - * Richard Woodruff <r-woodruff2@ti.com> - * Paul Walmsley - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * - * clksel clocks are clocks that do not have a fixed parent, or that - * can divide their parent's rate, or possibly both at the same time, based - * on the contents of a hardware register bitfield. - * - * All of the various mux and divider settings can be encoded into - * struct clksel* data structures, and then these can be autogenerated - * from some hardware database for each new chip generation. This - * should avoid the need to write, review, and validate a lot of new - * clock code for each new chip, since it can be exported from the SoC - * design flow. This is now done on OMAP4. - * - * The fusion of mux and divider clocks is a software creation. In - * hardware reality, the multiplexer (parent selection) and the - * divider exist separately. XXX At some point these clksel clocks - * should be split into "divider" clocks and "mux" clocks to better - * match the hardware. - * - * (The name "clksel" comes from the name of the corresponding - * register field in the OMAP2/3 family of SoCs.) - * - * XXX Currently these clocks are only used in the OMAP2/3/4 code, but - * many of the OMAP1 clocks should be convertible to use this - * mechanism. - */ -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/clk-provider.h> -#include <linux/io.h> -#include <linux/bug.h> - -#include "clock.h" - -/* Private functions */ - -/** - * _get_clksel_by_parent() - return clksel struct for a given clk & parent - * @clk: OMAP struct clk ptr to inspect - * @src_clk: OMAP struct clk ptr of the parent clk to search for - * - * Scan the struct clksel array associated with the clock to find - * the element associated with the supplied parent clock address. - * Returns a pointer to the struct clksel on success or NULL on error. - */ -static const struct clksel *_get_clksel_by_parent(struct clk_hw_omap *clk, - struct clk *src_clk) -{ - const struct clksel *clks; - - if (!src_clk) - return NULL; - - for (clks = clk->clksel; clks->parent; clks++) - if (clks->parent == src_clk) - break; /* Found the requested parent */ - - if (!clks->parent) { - /* This indicates a data problem */ - WARN(1, "clock: %s: could not find parent clock %s in clksel array\n", - __clk_get_name(clk->hw.clk), __clk_get_name(src_clk)); - return NULL; - } - - return clks; -} - -/** - * _write_clksel_reg() - program a clock's clksel register in hardware - * @clk: struct clk * to program - * @v: clksel bitfield value to program (with LSB at bit 0) - * - * Shift the clksel register bitfield value @v to its appropriate - * location in the clksel register and write it in. This function - * will ensure that the write to the clksel_reg reaches its - * destination before returning -- important since PRM and CM register - * accesses can be quite slow compared to ARM cycles -- but does not - * take into account any time the hardware might take to switch the - * clock source. - */ -static void _write_clksel_reg(struct clk_hw_omap *clk, u32 field_val) -{ - u32 v; - - v = omap2_clk_readl(clk, clk->clksel_reg); - v &= ~clk->clksel_mask; - v |= field_val << __ffs(clk->clksel_mask); - omap2_clk_writel(v, clk, clk->clksel_reg); - - v = omap2_clk_readl(clk, clk->clksel_reg); /* OCP barrier */ -} - -/** - * _clksel_to_divisor() - turn clksel field value into integer divider - * @clk: OMAP struct clk to use - * @field_val: register field value to find - * - * Given a struct clk of a rate-selectable clksel clock, and a register field - * value to search for, find the corresponding clock divisor. The register - * field value should be pre-masked and shifted down so the LSB is at bit 0 - * before calling. Returns 0 on error or returns the actual integer divisor - * upon success. - */ -static u32 _clksel_to_divisor(struct clk_hw_omap *clk, u32 field_val) -{ - const struct clksel *clks; - const struct clksel_rate *clkr; - struct clk *parent; - - parent = __clk_get_parent(clk->hw.clk); - - clks = _get_clksel_by_parent(clk, parent); - if (!clks) - return 0; - - for (clkr = clks->rates; clkr->div; clkr++) { - if (!(clkr->flags & cpu_mask)) - continue; - - if (clkr->val == field_val) - break; - } - - if (!clkr->div) { - /* This indicates a data error */ - WARN(1, "clock: %s: could not find fieldval %d for parent %s\n", - __clk_get_name(clk->hw.clk), field_val, - __clk_get_name(parent)); - return 0; - } - - return clkr->div; -} - -/** - * _divisor_to_clksel() - turn clksel integer divisor into a field value - * @clk: OMAP struct clk to use - * @div: integer divisor to search for - * - * Given a struct clk of a rate-selectable clksel clock, and a clock - * divisor, find the corresponding register field value. Returns the - * register field value _before_ left-shifting (i.e., LSB is at bit - * 0); or returns 0xFFFFFFFF (~0) upon error. - */ -static u32 _divisor_to_clksel(struct clk_hw_omap *clk, u32 div) -{ - const struct clksel *clks; - const struct clksel_rate *clkr; - struct clk *parent; - - /* should never happen */ - WARN_ON(div == 0); - - parent = __clk_get_parent(clk->hw.clk); - clks = _get_clksel_by_parent(clk, parent); - if (!clks) - return ~0; - - for (clkr = clks->rates; clkr->div; clkr++) { - if (!(clkr->flags & cpu_mask)) - continue; - - if (clkr->div == div) - break; - } - - if (!clkr->div) { - pr_err("clock: %s: could not find divisor %d for parent %s\n", - __clk_get_name(clk->hw.clk), div, - __clk_get_name(parent)); - return ~0; - } - - return clkr->val; -} - -/** - * _read_divisor() - get current divisor applied to parent clock (from hdwr) - * @clk: OMAP struct clk to use. - * - * Read the current divisor register value for @clk that is programmed - * into the hardware, convert it into the actual divisor value, and - * return it; or return 0 on error. - */ -static u32 _read_divisor(struct clk_hw_omap *clk) -{ - u32 v; - - if (!clk->clksel || !clk->clksel_mask) - return 0; - - v = omap2_clk_readl(clk, clk->clksel_reg); - v &= clk->clksel_mask; - v >>= __ffs(clk->clksel_mask); - - return _clksel_to_divisor(clk, v); -} - -/* Public functions */ - -/** - * omap2_clksel_round_rate_div() - find divisor for the given clock and rate - * @clk: OMAP struct clk to use - * @target_rate: desired clock rate - * @new_div: ptr to where we should store the divisor - * - * Finds 'best' divider value in an array based on the source and target - * rates. The divider array must be sorted with smallest divider first. - * This function is also used by the DPLL3 M2 divider code. - * - * Returns the rounded clock rate or returns 0xffffffff on error. - */ -u32 omap2_clksel_round_rate_div(struct clk_hw_omap *clk, - unsigned long target_rate, - u32 *new_div) -{ - unsigned long test_rate; - const struct clksel *clks; - const struct clksel_rate *clkr; - u32 last_div = 0; - struct clk *parent; - unsigned long parent_rate; - const char *clk_name; - - parent = __clk_get_parent(clk->hw.clk); - clk_name = __clk_get_name(clk->hw.clk); - parent_rate = __clk_get_rate(parent); - - if (!clk->clksel || !clk->clksel_mask) - return ~0; - - pr_debug("clock: clksel_round_rate_div: %s target_rate %ld\n", - clk_name, target_rate); - - *new_div = 1; - - clks = _get_clksel_by_parent(clk, parent); - if (!clks) - return ~0; - - for (clkr = clks->rates; clkr->div; clkr++) { - if (!(clkr->flags & cpu_mask)) - continue; - - /* Sanity check */ - if (clkr->div <= last_div) - pr_err("clock: %s: clksel_rate table not sorted\n", - clk_name); - - last_div = clkr->div; - - test_rate = parent_rate / clkr->div; - - if (test_rate <= target_rate) - break; /* found it */ - } - - if (!clkr->div) { - pr_err("clock: %s: could not find divisor for target rate %ld for parent %s\n", - clk_name, target_rate, __clk_get_name(parent)); - return ~0; - } - - *new_div = clkr->div; - - pr_debug("clock: new_div = %d, new_rate = %ld\n", *new_div, - (parent_rate / clkr->div)); - - return parent_rate / clkr->div; -} - -/* - * Clocktype interface functions to the OMAP clock code - * (i.e., those used in struct clk field function pointers, etc.) - */ - -/** - * omap2_clksel_find_parent_index() - return the array index of the current - * hardware parent of @hw - * @hw: struct clk_hw * to find the current hardware parent of - * - * Given a struct clk_hw pointer @hw to the 'hw' member of a struct - * clk_hw_omap record representing a source-selectable hardware clock, - * read the hardware register and determine what its parent is - * currently set to. Intended to be called only by the common clock - * framework struct clk_hw_ops.get_parent function pointer. Return - * the array index of this parent clock upon success -- there is no - * way to return an error, so if we encounter an error, just WARN() - * and pretend that we know that we're doing. - */ -u8 omap2_clksel_find_parent_index(struct clk_hw *hw) -{ - struct clk_hw_omap *clk = to_clk_hw_omap(hw); - const struct clksel *clks; - const struct clksel_rate *clkr; - u32 r, found = 0; - struct clk *parent; - const char *clk_name; - int ret = 0, f = 0; - - parent = __clk_get_parent(hw->clk); - clk_name = __clk_get_name(hw->clk); - - /* XXX should be able to return an error */ - WARN((!clk->clksel || !clk->clksel_mask), - "clock: %s: attempt to call on a non-clksel clock", clk_name); - - r = omap2_clk_readl(clk, clk->clksel_reg) & clk->clksel_mask; - r >>= __ffs(clk->clksel_mask); - - for (clks = clk->clksel; clks->parent && !found; clks++) { - for (clkr = clks->rates; clkr->div && !found; clkr++) { - if (!(clkr->flags & cpu_mask)) - continue; - - if (clkr->val == r) { - found = 1; - ret = f; - } - } - f++; - } - - /* This indicates a data error */ - WARN(!found, "clock: %s: init parent: could not find regval %0x\n", - clk_name, r); - - return ret; -} - - -/** - * omap2_clksel_recalc() - function ptr to pass via struct clk .recalc field - * @clk: struct clk * - * - * This function is intended to be called only by the clock framework. - * Each clksel clock should have its struct clk .recalc field set to this - * function. Returns the clock's current rate, based on its parent's rate - * and its current divisor setting in the hardware. - */ -unsigned long omap2_clksel_recalc(struct clk_hw *hw, unsigned long parent_rate) -{ - unsigned long rate; - u32 div = 0; - struct clk_hw_omap *clk = to_clk_hw_omap(hw); - - if (!parent_rate) - return 0; - - div = _read_divisor(clk); - if (!div) - rate = parent_rate; - else - rate = parent_rate / div; - - pr_debug("%s: recalc'd %s's rate to %lu (div %d)\n", __func__, - __clk_get_name(hw->clk), rate, div); - - return rate; -} - -/** - * omap2_clksel_round_rate() - find rounded rate for the given clock and rate - * @clk: OMAP struct clk to use - * @target_rate: desired clock rate - * - * This function is intended to be called only by the clock framework. - * Finds best target rate based on the source clock and possible dividers. - * rates. The divider array must be sorted with smallest divider first. - * - * Returns the rounded clock rate or returns 0xffffffff on error. - */ -long omap2_clksel_round_rate(struct clk_hw *hw, unsigned long target_rate, - unsigned long *parent_rate) -{ - struct clk_hw_omap *clk = to_clk_hw_omap(hw); - u32 new_div; - - return omap2_clksel_round_rate_div(clk, target_rate, &new_div); -} - -/** - * omap2_clksel_set_rate() - program clock rate in hardware - * @clk: struct clk * to program rate - * @rate: target rate to program - * - * This function is intended to be called only by the clock framework. - * Program @clk's rate to @rate in the hardware. The clock can be - * either enabled or disabled when this happens, although if the clock - * is enabled, some downstream devices may glitch or behave - * unpredictably when the clock rate is changed - this depends on the - * hardware. This function does not currently check the usecount of - * the clock, so if multiple drivers are using the clock, and the rate - * is changed, they will all be affected without any notification. - * Returns -EINVAL upon error, or 0 upon success. - */ -int omap2_clksel_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_hw_omap *clk = to_clk_hw_omap(hw); - u32 field_val, validrate, new_div = 0; - - if (!clk->clksel || !clk->clksel_mask) - return -EINVAL; - - validrate = omap2_clksel_round_rate_div(clk, rate, &new_div); - if (validrate != rate) - return -EINVAL; - - field_val = _divisor_to_clksel(clk, new_div); - if (field_val == ~0) - return -EINVAL; - - _write_clksel_reg(clk, field_val); - - pr_debug("clock: %s: set rate to %ld\n", __clk_get_name(hw->clk), - __clk_get_rate(hw->clk)); - - return 0; -} - -/* - * Clksel parent setting function - not passed in struct clk function - * pointer - instead, the OMAP clock code currently assumes that any - * parent-setting clock is a clksel clock, and calls - * omap2_clksel_set_parent() by default - */ - -/** - * omap2_clksel_set_parent() - change a clock's parent clock - * @clk: struct clk * of the child clock - * @new_parent: struct clk * of the new parent clock - * - * This function is intended to be called only by the clock framework. - * Change the parent clock of clock @clk to @new_parent. This is - * intended to be used while @clk is disabled. This function does not - * currently check the usecount of the clock, so if multiple drivers - * are using the clock, and the parent is changed, they will all be - * affected without any notification. Returns -EINVAL upon error, or - * 0 upon success. - */ -int omap2_clksel_set_parent(struct clk_hw *hw, u8 field_val) -{ - struct clk_hw_omap *clk = to_clk_hw_omap(hw); - - if (!clk->clksel || !clk->clksel_mask) - return -EINVAL; - - _write_clksel_reg(clk, field_val); - return 0; -} diff --git a/arch/arm/mach-omap2/clkt_iclk.c b/arch/arm/mach-omap2/clkt_iclk.c deleted file mode 100644 index 55eb579aeae1..000000000000 --- a/arch/arm/mach-omap2/clkt_iclk.c +++ /dev/null @@ -1,68 +0,0 @@ -/* - * OMAP2/3 interface clock control - * - * Copyright (C) 2011 Nokia Corporation - * Paul Walmsley - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/clk-provider.h> -#include <linux/io.h> - -#include "clock.h" - -/* Register offsets */ -#define CM_AUTOIDLE 0x30 -#define CM_ICLKEN 0x10 - -/* Private functions */ - -/* XXX */ -void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk) -{ - u32 v; - void __iomem *r; - - r = (__force void __iomem *) - ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); - - v = omap2_clk_readl(clk, r); - v |= (1 << clk->enable_bit); - omap2_clk_writel(v, clk, r); -} - -/* XXX */ -void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk) -{ - u32 v; - void __iomem *r; - - r = (__force void __iomem *) - ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); - - v = omap2_clk_readl(clk, r); - v &= ~(1 << clk->enable_bit); - omap2_clk_writel(v, clk, r); -} - -/* Public data */ - -const struct clk_hw_omap_ops clkhwops_iclk = { - .allow_idle = omap2_clkt_iclk_allow_idle, - .deny_idle = omap2_clkt_iclk_deny_idle, -}; - -const struct clk_hw_omap_ops clkhwops_iclk_wait = { - .allow_idle = omap2_clkt_iclk_allow_idle, - .deny_idle = omap2_clkt_iclk_deny_idle, - .find_idlest = omap2_clk_dflt_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; - - - diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c index a699d7169307..acb60ed17273 100644 --- a/arch/arm/mach-omap2/clock.c +++ b/arch/arm/mach-omap2/clock.c @@ -20,12 +20,11 @@ #include <linux/errno.h> #include <linux/err.h> #include <linux/delay.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/bitops.h> -#include <linux/regmap.h> #include <linux/of_address.h> -#include <linux/bootmem.h> #include <asm/cpu.h> #include <trace/events/power.h> @@ -40,19 +39,8 @@ #include "cm-regbits-34xx.h" #include "common.h" -/* - * MAX_MODULE_ENABLE_WAIT: maximum of number of microseconds to wait - * for a module to indicate that it is no longer in idle - */ -#define MAX_MODULE_ENABLE_WAIT 100000 - u16 cpu_mask; -/* - * Clock features setup. Used instead of CPU type checks. - */ -struct ti_clk_features ti_clk_features; - /* DPLL valid Fint frequency band limits - from 34xx TRM Section 4.7.6.2 */ #define OMAP3430_DPLL_FINT_BAND1_MIN 750000 #define OMAP3430_DPLL_FINT_BAND1_MAX 2100000 @@ -66,119 +54,24 @@ struct ti_clk_features ti_clk_features; #define OMAP3PLUS_DPLL_FINT_MIN 32000 #define OMAP3PLUS_DPLL_FINT_MAX 52000000 -/* - * clkdm_control: if true, then when a clock is enabled in the - * hardware, its clockdomain will first be enabled; and when a clock - * is disabled in the hardware, its clockdomain will be disabled - * afterwards. - */ -static bool clkdm_control = true; - -static LIST_HEAD(clk_hw_omap_clocks); - -struct clk_iomap { - struct regmap *regmap; - void __iomem *mem; -}; - -static struct clk_iomap *clk_memmaps[CLK_MAX_MEMMAPS]; - -static void clk_memmap_writel(u32 val, void __iomem *reg) -{ - struct clk_omap_reg *r = (struct clk_omap_reg *)® - struct clk_iomap *io = clk_memmaps[r->index]; - - if (io->regmap) - regmap_write(io->regmap, r->offset, val); - else - writel_relaxed(val, io->mem + r->offset); -} - -static u32 clk_memmap_readl(void __iomem *reg) -{ - u32 val; - struct clk_omap_reg *r = (struct clk_omap_reg *)® - struct clk_iomap *io = clk_memmaps[r->index]; - - if (io->regmap) - regmap_read(io->regmap, r->offset, &val); - else - val = readl_relaxed(io->mem + r->offset); - - return val; -} - -void omap2_clk_writel(u32 val, struct clk_hw_omap *clk, void __iomem *reg) -{ - if (WARN_ON_ONCE(!(clk->flags & MEMMAP_ADDRESSING))) - writel_relaxed(val, reg); - else - clk_memmap_writel(val, reg); -} - -u32 omap2_clk_readl(struct clk_hw_omap *clk, void __iomem *reg) -{ - if (WARN_ON_ONCE(!(clk->flags & MEMMAP_ADDRESSING))) - return readl_relaxed(reg); - else - return clk_memmap_readl(reg); -} - static struct ti_clk_ll_ops omap_clk_ll_ops = { - .clk_readl = clk_memmap_readl, - .clk_writel = clk_memmap_writel, + .clkdm_clk_enable = clkdm_clk_enable, + .clkdm_clk_disable = clkdm_clk_disable, + .cm_wait_module_ready = omap_cm_wait_module_ready, + .cm_split_idlest_reg = cm_split_idlest_reg, }; /** - * omap2_clk_provider_init - initialize a clock provider - * @match_table: DT device table to match for devices to init - * @np: device node pointer for the this clock provider - * @index: index for the clock provider - + @syscon: syscon regmap pointer - * @mem: iomem pointer for the clock provider memory area, only used if - * syscon is not provided + * omap2_clk_setup_ll_ops - setup clock driver low-level ops * - * Initializes a clock provider module (CM/PRM etc.), registering - * the memory mapping at specified index and initializing the - * low level driver infrastructure. Returns 0 in success. + * Sets up clock driver low-level platform ops. These are needed + * for register accesses and various other misc platform operations. + * Returns 0 on success, -EBUSY if low level ops have been registered + * already. */ -int __init omap2_clk_provider_init(struct device_node *np, int index, - struct regmap *syscon, void __iomem *mem) +int __init omap2_clk_setup_ll_ops(void) { - struct clk_iomap *io; - - ti_clk_ll_ops = &omap_clk_ll_ops; - - io = kzalloc(sizeof(*io), GFP_KERNEL); - - io->regmap = syscon; - io->mem = mem; - - clk_memmaps[index] = io; - - ti_dt_clk_init_provider(np, index); - - return 0; -} - -/** - * omap2_clk_legacy_provider_init - initialize a legacy clock provider - * @index: index for the clock provider - * @mem: iomem pointer for the clock provider memory area - * - * Initializes a legacy clock provider memory mapping. - */ -void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem) -{ - struct clk_iomap *io; - - ti_clk_ll_ops = &omap_clk_ll_ops; - - io = memblock_virt_alloc(sizeof(*io), 0); - - io->mem = mem; - - clk_memmaps[index] = io; + return ti_clk_setup_ll_ops(&omap_clk_ll_ops); } /* @@ -187,77 +80,6 @@ void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem) /* Private functions */ - -/** - * _wait_idlest_generic - wait for a module to leave the idle state - * @clk: module clock to wait for (needed for register offsets) - * @reg: virtual address of module IDLEST register - * @mask: value to mask against to determine if the module is active - * @idlest: idle state indicator (0 or 1) for the clock - * @name: name of the clock (for printk) - * - * Wait for a module to leave idle, where its idle-status register is - * not inside the CM module. Returns 1 if the module left idle - * promptly, or 0 if the module did not leave idle before the timeout - * elapsed. XXX Deprecated - should be moved into drivers for the - * individual IP block that the IDLEST register exists in. - */ -static int _wait_idlest_generic(struct clk_hw_omap *clk, void __iomem *reg, - u32 mask, u8 idlest, const char *name) -{ - int i = 0, ena = 0; - - ena = (idlest) ? 0 : mask; - - omap_test_timeout(((omap2_clk_readl(clk, reg) & mask) == ena), - MAX_MODULE_ENABLE_WAIT, i); - - if (i < MAX_MODULE_ENABLE_WAIT) - pr_debug("omap clock: module associated with clock %s ready after %d loops\n", - name, i); - else - pr_err("omap clock: module associated with clock %s didn't enable in %d tries\n", - name, MAX_MODULE_ENABLE_WAIT); - - return (i < MAX_MODULE_ENABLE_WAIT) ? 1 : 0; -}; - -/** - * _omap2_module_wait_ready - wait for an OMAP module to leave IDLE - * @clk: struct clk * belonging to the module - * - * If the necessary clocks for the OMAP hardware IP block that - * corresponds to clock @clk are enabled, then wait for the module to - * indicate readiness (i.e., to leave IDLE). This code does not - * belong in the clock code and will be moved in the medium term to - * module-dependent code. No return value. - */ -static void _omap2_module_wait_ready(struct clk_hw_omap *clk) -{ - void __iomem *companion_reg, *idlest_reg; - u8 other_bit, idlest_bit, idlest_val, idlest_reg_id; - s16 prcm_mod; - int r; - - /* Not all modules have multiple clocks that their IDLEST depends on */ - if (clk->ops->find_companion) { - clk->ops->find_companion(clk, &companion_reg, &other_bit); - if (!(omap2_clk_readl(clk, companion_reg) & (1 << other_bit))) - return; - } - - clk->ops->find_idlest(clk, &idlest_reg, &idlest_bit, &idlest_val); - r = cm_split_idlest_reg(idlest_reg, &prcm_mod, &idlest_reg_id); - if (r) { - /* IDLEST register not in the CM module */ - _wait_idlest_generic(clk, idlest_reg, (1 << idlest_bit), - idlest_val, __clk_get_name(clk->hw.clk)); - } else { - omap_cm_wait_module_ready(0, prcm_mod, idlest_reg_id, - idlest_bit); - }; -} - /* Public functions */ /** @@ -290,279 +112,6 @@ void omap2_init_clk_clkdm(struct clk_hw *hw) } } -/** - * omap2_clk_disable_clkdm_control - disable clkdm control on clk enable/disable - * - * Prevent the OMAP clock code from calling into the clockdomain code - * when a hardware clock in that clockdomain is enabled or disabled. - * Intended to be called at init time from omap*_clk_init(). No - * return value. - */ -void __init omap2_clk_disable_clkdm_control(void) -{ - clkdm_control = false; -} - -/** - * omap2_clk_dflt_find_companion - find companion clock to @clk - * @clk: struct clk * to find the companion clock of - * @other_reg: void __iomem ** to return the companion clock CM_*CLKEN va in - * @other_bit: u8 ** to return the companion clock bit shift in - * - * Note: We don't need special code here for INVERT_ENABLE for the - * time being since INVERT_ENABLE only applies to clocks enabled by - * CM_CLKEN_PLL - * - * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes it's - * just a matter of XORing the bits. - * - * Some clocks don't have companion clocks. For example, modules with - * only an interface clock (such as MAILBOXES) don't have a companion - * clock. Right now, this code relies on the hardware exporting a bit - * in the correct companion register that indicates that the - * nonexistent 'companion clock' is active. Future patches will - * associate this type of code with per-module data structures to - * avoid this issue, and remove the casts. No return value. - */ -void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk, - void __iomem **other_reg, u8 *other_bit) -{ - u32 r; - - /* - * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes - * it's just a matter of XORing the bits. - */ - r = ((__force u32)clk->enable_reg ^ (CM_FCLKEN ^ CM_ICLKEN)); - - *other_reg = (__force void __iomem *)r; - *other_bit = clk->enable_bit; -} - -/** - * omap2_clk_dflt_find_idlest - find CM_IDLEST reg va, bit shift for @clk - * @clk: struct clk * to find IDLEST info for - * @idlest_reg: void __iomem ** to return the CM_IDLEST va in - * @idlest_bit: u8 * to return the CM_IDLEST bit shift in - * @idlest_val: u8 * to return the idle status indicator - * - * Return the CM_IDLEST register address and bit shift corresponding - * to the module that "owns" this clock. This default code assumes - * that the CM_IDLEST bit shift is the CM_*CLKEN bit shift, and that - * the IDLEST register address ID corresponds to the CM_*CLKEN - * register address ID (e.g., that CM_FCLKEN2 corresponds to - * CM_IDLEST2). This is not true for all modules. No return value. - */ -void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk, - void __iomem **idlest_reg, u8 *idlest_bit, u8 *idlest_val) -{ - u32 r; - - r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); - *idlest_reg = (__force void __iomem *)r; - *idlest_bit = clk->enable_bit; - - /* - * 24xx uses 0 to indicate not ready, and 1 to indicate ready. - * 34xx reverses this, just to keep us on our toes - * AM35xx uses both, depending on the module. - */ - *idlest_val = ti_clk_features.cm_idlest_val; -} - -/** - * omap2_dflt_clk_enable - enable a clock in the hardware - * @hw: struct clk_hw * of the clock to enable - * - * Enable the clock @hw in the hardware. We first call into the OMAP - * clockdomain code to "enable" the corresponding clockdomain if this - * is the first enabled user of the clockdomain. Then program the - * hardware to enable the clock. Then wait for the IP block that uses - * this clock to leave idle (if applicable). Returns the error value - * from clkdm_clk_enable() if it terminated with an error, or -EINVAL - * if @hw has a null clock enable_reg, or zero upon success. - */ -int omap2_dflt_clk_enable(struct clk_hw *hw) -{ - struct clk_hw_omap *clk; - u32 v; - int ret = 0; - - clk = to_clk_hw_omap(hw); - - if (clkdm_control && clk->clkdm) { - ret = clkdm_clk_enable(clk->clkdm, hw->clk); - if (ret) { - WARN(1, "%s: could not enable %s's clockdomain %s: %d\n", - __func__, __clk_get_name(hw->clk), - clk->clkdm->name, ret); - return ret; - } - } - - if (unlikely(clk->enable_reg == NULL)) { - pr_err("%s: %s missing enable_reg\n", __func__, - __clk_get_name(hw->clk)); - ret = -EINVAL; - goto err; - } - - /* FIXME should not have INVERT_ENABLE bit here */ - v = omap2_clk_readl(clk, clk->enable_reg); - if (clk->flags & INVERT_ENABLE) - v &= ~(1 << clk->enable_bit); - else - v |= (1 << clk->enable_bit); - omap2_clk_writel(v, clk, clk->enable_reg); - v = omap2_clk_readl(clk, clk->enable_reg); /* OCP barrier */ - - if (clk->ops && clk->ops->find_idlest) - _omap2_module_wait_ready(clk); - - return 0; - -err: - if (clkdm_control && clk->clkdm) - clkdm_clk_disable(clk->clkdm, hw->clk); - return ret; -} - -/** - * omap2_dflt_clk_disable - disable a clock in the hardware - * @hw: struct clk_hw * of the clock to disable - * - * Disable the clock @hw in the hardware, and call into the OMAP - * clockdomain code to "disable" the corresponding clockdomain if all - * clocks/hwmods in that clockdomain are now disabled. No return - * value. - */ -void omap2_dflt_clk_disable(struct clk_hw *hw) -{ - struct clk_hw_omap *clk; - u32 v; - - clk = to_clk_hw_omap(hw); - if (!clk->enable_reg) { - /* - * 'independent' here refers to a clock which is not - * controlled by its parent. - */ - pr_err("%s: independent clock %s has no enable_reg\n", - __func__, __clk_get_name(hw->clk)); - return; - } - - v = omap2_clk_readl(clk, clk->enable_reg); - if (clk->flags & INVERT_ENABLE) - v |= (1 << clk->enable_bit); - else - v &= ~(1 << clk->enable_bit); - omap2_clk_writel(v, clk, clk->enable_reg); - /* No OCP barrier needed here since it is a disable operation */ - - if (clkdm_control && clk->clkdm) - clkdm_clk_disable(clk->clkdm, hw->clk); -} - -/** - * omap2_clkops_enable_clkdm - increment usecount on clkdm of @hw - * @hw: struct clk_hw * of the clock being enabled - * - * Increment the usecount of the clockdomain of the clock pointed to - * by @hw; if the usecount is 1, the clockdomain will be "enabled." - * Only needed for clocks that don't use omap2_dflt_clk_enable() as - * their enable function pointer. Passes along the return value of - * clkdm_clk_enable(), -EINVAL if @hw is not associated with a - * clockdomain, or 0 if clock framework-based clockdomain control is - * not implemented. - */ -int omap2_clkops_enable_clkdm(struct clk_hw *hw) -{ - struct clk_hw_omap *clk; - int ret = 0; - - clk = to_clk_hw_omap(hw); - - if (unlikely(!clk->clkdm)) { - pr_err("%s: %s: no clkdm set ?!\n", __func__, - __clk_get_name(hw->clk)); - return -EINVAL; - } - - if (unlikely(clk->enable_reg)) - pr_err("%s: %s: should use dflt_clk_enable ?!\n", __func__, - __clk_get_name(hw->clk)); - - if (!clkdm_control) { - pr_err("%s: %s: clkfw-based clockdomain control disabled ?!\n", - __func__, __clk_get_name(hw->clk)); - return 0; - } - - ret = clkdm_clk_enable(clk->clkdm, hw->clk); - WARN(ret, "%s: could not enable %s's clockdomain %s: %d\n", - __func__, __clk_get_name(hw->clk), clk->clkdm->name, ret); - - return ret; -} - -/** - * omap2_clkops_disable_clkdm - decrement usecount on clkdm of @hw - * @hw: struct clk_hw * of the clock being disabled - * - * Decrement the usecount of the clockdomain of the clock pointed to - * by @hw; if the usecount is 0, the clockdomain will be "disabled." - * Only needed for clocks that don't use omap2_dflt_clk_disable() as their - * disable function pointer. No return value. - */ -void omap2_clkops_disable_clkdm(struct clk_hw *hw) -{ - struct clk_hw_omap *clk; - - clk = to_clk_hw_omap(hw); - - if (unlikely(!clk->clkdm)) { - pr_err("%s: %s: no clkdm set ?!\n", __func__, - __clk_get_name(hw->clk)); - return; - } - - if (unlikely(clk->enable_reg)) - pr_err("%s: %s: should use dflt_clk_disable ?!\n", __func__, - __clk_get_name(hw->clk)); - - if (!clkdm_control) { - pr_err("%s: %s: clkfw-based clockdomain control disabled ?!\n", - __func__, __clk_get_name(hw->clk)); - return; - } - - clkdm_clk_disable(clk->clkdm, hw->clk); -} - -/** - * omap2_dflt_clk_is_enabled - is clock enabled in the hardware? - * @hw: struct clk_hw * to check - * - * Return 1 if the clock represented by @hw is enabled in the - * hardware, or 0 otherwise. Intended for use in the struct - * clk_ops.is_enabled function pointer. - */ -int omap2_dflt_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_hw_omap *clk = to_clk_hw_omap(hw); - u32 v; - - v = omap2_clk_readl(clk, clk->enable_reg); - - if (clk->flags & INVERT_ENABLE) - v ^= BIT(clk->enable_bit); - - v &= BIT(clk->enable_bit); - - return v ? 1 : 0; -} - static int __initdata mpurate; /* @@ -584,178 +133,6 @@ static int __init omap_clk_setup(char *str) __setup("mpurate=", omap_clk_setup); /** - * omap2_init_clk_hw_omap_clocks - initialize an OMAP clock - * @clk: struct clk * to initialize - * - * Add an OMAP clock @clk to the internal list of OMAP clocks. Used - * temporarily for autoidle handling, until this support can be - * integrated into the common clock framework code in some way. No - * return value. - */ -void omap2_init_clk_hw_omap_clocks(struct clk *clk) -{ - struct clk_hw_omap *c; - - if (__clk_get_flags(clk) & CLK_IS_BASIC) - return; - - c = to_clk_hw_omap(__clk_get_hw(clk)); - list_add(&c->node, &clk_hw_omap_clocks); -} - -/** - * omap2_clk_enable_autoidle_all - enable autoidle on all OMAP clocks that - * support it - * - * Enable clock autoidle on all OMAP clocks that have allow_idle - * function pointers associated with them. This function is intended - * to be temporary until support for this is added to the common clock - * code. Returns 0. - */ -int omap2_clk_enable_autoidle_all(void) -{ - struct clk_hw_omap *c; - - list_for_each_entry(c, &clk_hw_omap_clocks, node) - if (c->ops && c->ops->allow_idle) - c->ops->allow_idle(c); - - of_ti_clk_allow_autoidle_all(); - - return 0; -} - -/** - * omap2_clk_disable_autoidle_all - disable autoidle on all OMAP clocks that - * support it - * - * Disable clock autoidle on all OMAP clocks that have allow_idle - * function pointers associated with them. This function is intended - * to be temporary until support for this is added to the common clock - * code. Returns 0. - */ -int omap2_clk_disable_autoidle_all(void) -{ - struct clk_hw_omap *c; - - list_for_each_entry(c, &clk_hw_omap_clocks, node) - if (c->ops && c->ops->deny_idle) - c->ops->deny_idle(c); - - of_ti_clk_deny_autoidle_all(); - - return 0; -} - -/** - * omap2_clk_deny_idle - disable autoidle on an OMAP clock - * @clk: struct clk * to disable autoidle for - * - * Disable autoidle on an OMAP clock. - */ -int omap2_clk_deny_idle(struct clk *clk) -{ - struct clk_hw_omap *c; - - if (__clk_get_flags(clk) & CLK_IS_BASIC) - return -EINVAL; - - c = to_clk_hw_omap(__clk_get_hw(clk)); - if (c->ops && c->ops->deny_idle) - c->ops->deny_idle(c); - return 0; -} - -/** - * omap2_clk_allow_idle - enable autoidle on an OMAP clock - * @clk: struct clk * to enable autoidle for - * - * Enable autoidle on an OMAP clock. - */ -int omap2_clk_allow_idle(struct clk *clk) -{ - struct clk_hw_omap *c; - - if (__clk_get_flags(clk) & CLK_IS_BASIC) - return -EINVAL; - - c = to_clk_hw_omap(__clk_get_hw(clk)); - if (c->ops && c->ops->allow_idle) - c->ops->allow_idle(c); - return 0; -} - -/** - * omap2_clk_enable_init_clocks - prepare & enable a list of clocks - * @clk_names: ptr to an array of strings of clock names to enable - * @num_clocks: number of clock names in @clk_names - * - * Prepare and enable a list of clocks, named by @clk_names. No - * return value. XXX Deprecated; only needed until these clocks are - * properly claimed and enabled by the drivers or core code that uses - * them. XXX What code disables & calls clk_put on these clocks? - */ -void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks) -{ - struct clk *init_clk; - int i; - - for (i = 0; i < num_clocks; i++) { - init_clk = clk_get(NULL, clk_names[i]); - if (WARN(IS_ERR(init_clk), "could not find init clock %s\n", - clk_names[i])) - continue; - clk_prepare_enable(init_clk); - } -} - -const struct clk_hw_omap_ops clkhwops_wait = { - .find_idlest = omap2_clk_dflt_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; - -/** - * omap2_clk_switch_mpurate_at_boot - switch ARM MPU rate by boot-time argument - * @mpurate_ck_name: clk name of the clock to change rate - * - * Change the ARM MPU clock rate to the rate specified on the command - * line, if one was specified. @mpurate_ck_name should be - * "virt_prcm_set" on OMAP2xxx and "dpll1_ck" on OMAP34xx/OMAP36xx. - * XXX Does not handle voltage scaling - on OMAP2xxx this is currently - * handled by the virt_prcm_set clock, but this should be handled by - * the OPP layer. XXX This is intended to be handled by the OPP layer - * code in the near future and should be removed from the clock code. - * Returns -EINVAL if 'mpurate' is zero or if clk_set_rate() rejects - * the rate, -ENOENT if the struct clk referred to by @mpurate_ck_name - * cannot be found, or 0 upon success. - */ -int __init omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name) -{ - struct clk *mpurate_ck; - int r; - - if (!mpurate) - return -EINVAL; - - mpurate_ck = clk_get(NULL, mpurate_ck_name); - if (WARN(IS_ERR(mpurate_ck), "Failed to get %s.\n", mpurate_ck_name)) - return -ENOENT; - - r = clk_set_rate(mpurate_ck, mpurate); - if (r < 0) { - WARN(1, "clock: %s: unable to set MPU rate to %d: %d\n", - mpurate_ck_name, mpurate, r); - clk_put(mpurate_ck); - return -EINVAL; - } - - calibrate_delay(); - clk_put(mpurate_ck); - - return 0; -} - -/** * omap2_clk_print_new_rates - print summary of current clock tree rates * @hfclkin_ck_name: clk name for the off-chip HF oscillator * @core_ck_name: clk name for the on-chip CORE_CLK @@ -801,29 +178,30 @@ void __init omap2_clk_print_new_rates(const char *hfclkin_ck_name, */ void __init ti_clk_init_features(void) { + struct ti_clk_features features = { 0 }; /* Fint setup for DPLLs */ if (cpu_is_omap3430()) { - ti_clk_features.fint_min = OMAP3430_DPLL_FINT_BAND1_MIN; - ti_clk_features.fint_max = OMAP3430_DPLL_FINT_BAND2_MAX; - ti_clk_features.fint_band1_max = OMAP3430_DPLL_FINT_BAND1_MAX; - ti_clk_features.fint_band2_min = OMAP3430_DPLL_FINT_BAND2_MIN; + features.fint_min = OMAP3430_DPLL_FINT_BAND1_MIN; + features.fint_max = OMAP3430_DPLL_FINT_BAND2_MAX; + features.fint_band1_max = OMAP3430_DPLL_FINT_BAND1_MAX; + features.fint_band2_min = OMAP3430_DPLL_FINT_BAND2_MIN; } else { - ti_clk_features.fint_min = OMAP3PLUS_DPLL_FINT_MIN; - ti_clk_features.fint_max = OMAP3PLUS_DPLL_FINT_MAX; + features.fint_min = OMAP3PLUS_DPLL_FINT_MIN; + features.fint_max = OMAP3PLUS_DPLL_FINT_MAX; } /* Bypass value setup for DPLLs */ if (cpu_is_omap24xx()) { - ti_clk_features.dpll_bypass_vals |= + features.dpll_bypass_vals |= (1 << OMAP2XXX_EN_DPLL_LPBYPASS) | (1 << OMAP2XXX_EN_DPLL_FRBYPASS); } else if (cpu_is_omap34xx()) { - ti_clk_features.dpll_bypass_vals |= + features.dpll_bypass_vals |= (1 << OMAP3XXX_EN_DPLL_LPBYPASS) | (1 << OMAP3XXX_EN_DPLL_FRBYPASS); } else if (soc_is_am33xx() || cpu_is_omap44xx() || soc_is_am43xx() || soc_is_omap54xx() || soc_is_dra7xx()) { - ti_clk_features.dpll_bypass_vals |= + features.dpll_bypass_vals |= (1 << OMAP4XXX_EN_DPLL_LPBYPASS) | (1 << OMAP4XXX_EN_DPLL_FRBYPASS) | (1 << OMAP4XXX_EN_DPLL_MNBYPASS); @@ -831,7 +209,7 @@ void __init ti_clk_init_features(void) /* Jitter correction only available on OMAP343X */ if (cpu_is_omap343x()) - ti_clk_features.flags |= TI_CLK_DPLL_HAS_FREQSEL; + features.flags |= TI_CLK_DPLL_HAS_FREQSEL; /* Idlest value for interface clocks. * 24xx uses 0 to indicate not ready, and 1 to indicate ready. @@ -839,11 +217,13 @@ void __init ti_clk_init_features(void) * AM35xx uses both, depending on the module. */ if (cpu_is_omap24xx()) - ti_clk_features.cm_idlest_val = OMAP24XX_CM_IDLEST_VAL; + features.cm_idlest_val = OMAP24XX_CM_IDLEST_VAL; else if (cpu_is_omap34xx()) - ti_clk_features.cm_idlest_val = OMAP34XX_CM_IDLEST_VAL; + features.cm_idlest_val = OMAP34XX_CM_IDLEST_VAL; /* On OMAP3430 ES1.0, DPLL4 can't be re-programmed */ if (omap_rev() == OMAP3430_REV_ES1_0) - ti_clk_features.flags |= TI_CLK_DPLL4_DENY_REPROGRAM; + features.flags |= TI_CLK_DPLL4_DENY_REPROGRAM; + + ti_clk_setup_features(&features); } diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h index 652ed0ab86ec..67da640ba1c7 100644 --- a/arch/arm/mach-omap2/clock.h +++ b/arch/arm/mach-omap2/clock.h @@ -23,90 +23,6 @@ #include <linux/clk-provider.h> #include <linux/clk/ti.h> -struct omap_clk { - u16 cpu; - struct clk_lookup lk; -}; - -#define CLK(dev, con, ck) \ - { \ - .lk = { \ - .dev_id = dev, \ - .con_id = con, \ - .clk = ck, \ - }, \ - } - -struct clockdomain; - -#define DEFINE_STRUCT_CLK(_name, _parent_array_name, _clkops_name) \ - static struct clk_core _name##_core = { \ - .name = #_name, \ - .hw = &_name##_hw.hw, \ - .parent_names = _parent_array_name, \ - .num_parents = ARRAY_SIZE(_parent_array_name), \ - .ops = &_clkops_name, \ - }; \ - static struct clk _name = { \ - .core = &_name##_core, \ - }; - -#define DEFINE_STRUCT_CLK_FLAGS(_name, _parent_array_name, \ - _clkops_name, _flags) \ - static struct clk_core _name##_core = { \ - .name = #_name, \ - .hw = &_name##_hw.hw, \ - .parent_names = _parent_array_name, \ - .num_parents = ARRAY_SIZE(_parent_array_name), \ - .ops = &_clkops_name, \ - .flags = _flags, \ - }; \ - static struct clk _name = { \ - .core = &_name##_core, \ - }; - -#define DEFINE_STRUCT_CLK_HW_OMAP(_name, _clkdm_name) \ - static struct clk_hw_omap _name##_hw = { \ - .hw = { \ - .clk = &_name, \ - }, \ - .clkdm_name = _clkdm_name, \ - }; - -#define DEFINE_CLK_OMAP_MUX(_name, _clkdm_name, _clksel, \ - _clksel_reg, _clksel_mask, \ - _parent_names, _ops) \ - static struct clk _name; \ - static struct clk_hw_omap _name##_hw = { \ - .hw = { \ - .clk = &_name, \ - }, \ - .clksel = _clksel, \ - .clksel_reg = _clksel_reg, \ - .clksel_mask = _clksel_mask, \ - .clkdm_name = _clkdm_name, \ - }; \ - DEFINE_STRUCT_CLK(_name, _parent_names, _ops); - -#define DEFINE_CLK_OMAP_MUX_GATE(_name, _clkdm_name, _clksel, \ - _clksel_reg, _clksel_mask, \ - _enable_reg, _enable_bit, \ - _hwops, _parent_names, _ops) \ - static struct clk _name; \ - static struct clk_hw_omap _name##_hw = { \ - .hw = { \ - .clk = &_name, \ - }, \ - .ops = _hwops, \ - .enable_reg = _enable_reg, \ - .enable_bit = _enable_bit, \ - .clksel = _clksel, \ - .clksel_reg = _clksel_reg, \ - .clksel_mask = _clksel_mask, \ - .clkdm_name = _clkdm_name, \ - }; \ - DEFINE_STRUCT_CLK(_name, _parent_names, _ops); - /* struct clksel_rate.flags possibilities */ #define RATE_IN_242X (1 << 0) #define RATE_IN_243X (1 << 1) @@ -127,38 +43,6 @@ struct clockdomain; /* RATE_IN_3430ES2PLUS_36XX includes 34xx/35xx with ES >=2, and all 36xx/37xx */ #define RATE_IN_3430ES2PLUS_36XX (RATE_IN_3430ES2PLUS | RATE_IN_36XX) - -/** - * struct clksel_rate - register bitfield values corresponding to clk divisors - * @val: register bitfield value (shifted to bit 0) - * @div: clock divisor corresponding to @val - * @flags: (see "struct clksel_rate.flags possibilities" above) - * - * @val should match the value of a read from struct clk.clksel_reg - * AND'ed with struct clk.clksel_mask, shifted right to bit 0. - * - * @div is the divisor that should be applied to the parent clock's rate - * to produce the current clock's rate. - */ -struct clksel_rate { - u32 val; - u8 div; - u16 flags; -}; - -/** - * struct clksel - available parent clocks, and a pointer to their divisors - * @parent: struct clk * to a possible parent clock - * @rates: available divisors for this parent clock - * - * A struct clksel is always associated with one or more struct clks - * and one or more struct clksel_rates. - */ -struct clksel { - struct clk *parent; - const struct clksel_rate *rates; -}; - /* CM_CLKSEL2_PLL.CORE_CLK_SRC bits (2XXX) */ #define CORE_CLK_SRC_32K 0x0 #define CORE_CLK_SRC_DPLL 0x1 @@ -180,105 +64,18 @@ struct clksel { #define OMAP4XXX_EN_DPLL_FRBYPASS 0x6 #define OMAP4XXX_EN_DPLL_LOCKED 0x7 -u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk); -void omap3_dpll_allow_idle(struct clk_hw_omap *clk); -void omap3_dpll_deny_idle(struct clk_hw_omap *clk); -void omap4_dpllmx_allow_gatectrl(struct clk_hw_omap *clk); -void omap4_dpllmx_deny_gatectrl(struct clk_hw_omap *clk); - -void __init omap2_clk_disable_clkdm_control(void); - -/* clkt_clksel.c public functions */ -u32 omap2_clksel_round_rate_div(struct clk_hw_omap *clk, - unsigned long target_rate, - u32 *new_div); -u8 omap2_clksel_find_parent_index(struct clk_hw *hw); -unsigned long omap2_clksel_recalc(struct clk_hw *hw, unsigned long parent_rate); -long omap2_clksel_round_rate(struct clk_hw *hw, unsigned long target_rate, - unsigned long *parent_rate); -int omap2_clksel_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate); -int omap2_clksel_set_parent(struct clk_hw *hw, u8 field_val); - -/* clkt_iclk.c public functions */ -extern void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk); -extern void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk); - -unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk); - -void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk, - void __iomem **other_reg, - u8 *other_bit); -void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk, - void __iomem **idlest_reg, - u8 *idlest_bit, u8 *idlest_val); -int omap2_clk_enable_autoidle_all(void); -int omap2_clk_allow_idle(struct clk *clk); -int omap2_clk_deny_idle(struct clk *clk); -int omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name); void omap2_clk_print_new_rates(const char *hfclkin_ck_name, const char *core_ck_name, const char *mpu_ck_name); -u32 omap2_clk_readl(struct clk_hw_omap *clk, void __iomem *reg); -void omap2_clk_writel(u32 val, struct clk_hw_omap *clk, void __iomem *reg); - extern u16 cpu_mask; -/* - * Clock features setup. Used instead of CPU type checks. - */ -struct ti_clk_features { - u32 flags; - long fint_min; - long fint_max; - long fint_band1_max; - long fint_band2_min; - u8 dpll_bypass_vals; - u8 cm_idlest_val; -}; - -#define TI_CLK_DPLL_HAS_FREQSEL (1 << 0) -#define TI_CLK_DPLL4_DENY_REPROGRAM (1 << 1) - -extern struct ti_clk_features ti_clk_features; - extern const struct clkops clkops_omap2_dflt_wait; extern const struct clkops clkops_omap2_dflt; extern struct clk_functions omap2_clk_functions; -extern const struct clksel_rate gpt_32k_rates[]; -extern const struct clksel_rate gpt_sys_rates[]; -extern const struct clksel_rate gfx_l3_rates[]; -extern const struct clksel_rate dsp_ick_rates[]; - -extern const struct clk_hw_omap_ops clkhwops_iclk_wait; -extern const struct clk_hw_omap_ops clkhwops_wait; -extern const struct clk_hw_omap_ops clkhwops_omap3430es2_ssi_wait; -extern const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait; -extern const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait; -extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait; -extern const struct clk_hw_omap_ops clkhwops_apll54; -extern const struct clk_hw_omap_ops clkhwops_apll96; - -/* clksel_rate blocks shared between OMAP44xx and AM33xx */ -extern const struct clksel_rate div_1_0_rates[]; -extern const struct clksel_rate div3_1to4_rates[]; -extern const struct clksel_rate div_1_1_rates[]; -extern const struct clksel_rate div_1_2_rates[]; -extern const struct clksel_rate div_1_3_rates[]; -extern const struct clksel_rate div_1_4_rates[]; -extern const struct clksel_rate div31_1to31_rates[]; - -extern int omap2_clkops_enable_clkdm(struct clk_hw *hw); -extern void omap2_clkops_disable_clkdm(struct clk_hw *hw); - -struct regmap; - -int __init omap2_clk_provider_init(struct device_node *np, int index, - struct regmap *syscon, void __iomem *mem); -void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem); +int __init omap2_clk_setup_ll_ops(void); void __init ti_clk_init_features(void); #endif diff --git a/arch/arm/mach-omap2/clock2430.c b/arch/arm/mach-omap2/clock2430.c deleted file mode 100644 index cef0c8d1de52..000000000000 --- a/arch/arm/mach-omap2/clock2430.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * clock2430.c - OMAP2430-specific clock integration code - * - * Copyright (C) 2005-2008 Texas Instruments, Inc. - * Copyright (C) 2004-2010 Nokia Corporation - * - * Contacts: - * Richard Woodruff <r-woodruff2@ti.com> - * Paul Walmsley - * - * Based on earlier work by Tuukka Tikkanen, Tony Lindgren, - * Gordon McNutt and RidgeRun, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include "soc.h" -#include "iomap.h" -#include "clock.h" -#include "clock2xxx.h" -#include "cm2xxx.h" -#include "cm-regbits-24xx.h" - -/** - * omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS - * @clk: struct clk * being enabled - * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into - * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into - * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator - * - * OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the - * CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE. This custom function - * passes back the correct CM_IDLEST register address for I2CHS - * modules. No return value. - */ -static void omap2430_clk_i2chs_find_idlest(struct clk_hw_omap *clk, - void __iomem **idlest_reg, - u8 *idlest_bit, - u8 *idlest_val) -{ - *idlest_reg = OMAP2430_CM_REGADDR(CORE_MOD, CM_IDLEST); - *idlest_bit = clk->enable_bit; - *idlest_val = OMAP24XX_CM_IDLEST_VAL; -} - -/* 2430 I2CHS has non-standard IDLEST register */ -const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait = { - .find_idlest = omap2430_clk_i2chs_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; diff --git a/arch/arm/mach-omap2/clock2xxx.c b/arch/arm/mach-omap2/clock2xxx.c deleted file mode 100644 index b870f6a9e283..000000000000 --- a/arch/arm/mach-omap2/clock2xxx.c +++ /dev/null @@ -1,57 +0,0 @@ -/* - * clock2xxx.c - OMAP2xxx-specific clock integration code - * - * Copyright (C) 2005-2008 Texas Instruments, Inc. - * Copyright (C) 2004-2010 Nokia Corporation - * - * Contacts: - * Richard Woodruff <r-woodruff2@ti.com> - * Paul Walmsley - * - * Based on earlier work by Tuukka Tikkanen, Tony Lindgren, - * Gordon McNutt and RidgeRun, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include "soc.h" -#include "clock.h" -#include "clock2xxx.h" -#include "cm.h" -#include "cm-regbits-24xx.h" - -struct clk_hw *dclk_hw; -/* - * Omap24xx specific clock functions - */ - -/* - * Switch the MPU rate if specified on cmdline. We cannot do this - * early until cmdline is parsed. XXX This should be removed from the - * clock code and handled by the OPP layer code in the near future. - */ -static int __init omap2xxx_clk_arch_init(void) -{ - int ret; - - if (!cpu_is_omap24xx()) - return 0; - - ret = omap2_clk_switch_mpurate_at_boot("virt_prcm_set"); - if (!ret) - omap2_clk_print_new_rates("sys_ck", "dpll_ck", "mpu_ck"); - - return ret; -} - -omap_arch_initcall(omap2xxx_clk_arch_init); - - diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c deleted file mode 100644 index 4596468e50ab..000000000000 --- a/arch/arm/mach-omap2/clock34xx.c +++ /dev/null @@ -1,138 +0,0 @@ -/* - * OMAP3-specific clock framework functions - * - * Copyright (C) 2007-2008 Texas Instruments, Inc. - * Copyright (C) 2007-2011 Nokia Corporation - * - * Paul Walmsley - * Jouni Högander - * - * Parts of this code are based on code written by - * Richard Woodruff, Tony Lindgren, Tuukka Tikkanen, Karthik Dasu, - * Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include "clock.h" -#include "clock34xx.h" -#include "cm3xxx.h" -#include "cm-regbits-34xx.h" - -/** - * omap3430es2_clk_ssi_find_idlest - return CM_IDLEST info for SSI - * @clk: struct clk * being enabled - * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into - * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into - * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator - * - * The OMAP3430ES2 SSI target CM_IDLEST bit is at a different shift - * from the CM_{I,F}CLKEN bit. Pass back the correct info via - * @idlest_reg and @idlest_bit. No return value. - */ -static void omap3430es2_clk_ssi_find_idlest(struct clk_hw_omap *clk, - void __iomem **idlest_reg, - u8 *idlest_bit, - u8 *idlest_val) -{ - u32 r; - - r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); - *idlest_reg = (__force void __iomem *)r; - *idlest_bit = OMAP3430ES2_ST_SSI_IDLE_SHIFT; - *idlest_val = OMAP34XX_CM_IDLEST_VAL; -} -const struct clk_hw_omap_ops clkhwops_omap3430es2_ssi_wait = { - .find_idlest = omap3430es2_clk_ssi_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; - -const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait = { - .allow_idle = omap2_clkt_iclk_allow_idle, - .deny_idle = omap2_clkt_iclk_deny_idle, - .find_idlest = omap3430es2_clk_ssi_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; - -/** - * omap3430es2_clk_dss_usbhost_find_idlest - CM_IDLEST info for DSS, USBHOST - * @clk: struct clk * being enabled - * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into - * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into - * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator - * - * Some OMAP modules on OMAP3 ES2+ chips have both initiator and - * target IDLEST bits. For our purposes, we are concerned with the - * target IDLEST bits, which exist at a different bit position than - * the *CLKEN bit position for these modules (DSS and USBHOST) (The - * default find_idlest code assumes that they are at the same - * position.) No return value. - */ -static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk_hw_omap *clk, - void __iomem **idlest_reg, - u8 *idlest_bit, - u8 *idlest_val) -{ - u32 r; - - r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); - *idlest_reg = (__force void __iomem *)r; - /* USBHOST_IDLE has same shift */ - *idlest_bit = OMAP3430ES2_ST_DSS_IDLE_SHIFT; - *idlest_val = OMAP34XX_CM_IDLEST_VAL; -} - -const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait = { - .find_idlest = omap3430es2_clk_dss_usbhost_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; - -const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait = { - .allow_idle = omap2_clkt_iclk_allow_idle, - .deny_idle = omap2_clkt_iclk_deny_idle, - .find_idlest = omap3430es2_clk_dss_usbhost_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; - -/** - * omap3430es2_clk_hsotgusb_find_idlest - return CM_IDLEST info for HSOTGUSB - * @clk: struct clk * being enabled - * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into - * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into - * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator - * - * The OMAP3430ES2 HSOTGUSB target CM_IDLEST bit is at a different - * shift from the CM_{I,F}CLKEN bit. Pass back the correct info via - * @idlest_reg and @idlest_bit. No return value. - */ -static void omap3430es2_clk_hsotgusb_find_idlest(struct clk_hw_omap *clk, - void __iomem **idlest_reg, - u8 *idlest_bit, - u8 *idlest_val) -{ - u32 r; - - r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); - *idlest_reg = (__force void __iomem *)r; - *idlest_bit = OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT; - *idlest_val = OMAP34XX_CM_IDLEST_VAL; -} - -const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait = { - .allow_idle = omap2_clkt_iclk_allow_idle, - .deny_idle = omap2_clkt_iclk_deny_idle, - .find_idlest = omap3430es2_clk_hsotgusb_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; - -const struct clk_hw_omap_ops clkhwops_omap3430es2_hsotgusb_wait = { - .find_idlest = omap3430es2_clk_hsotgusb_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; diff --git a/arch/arm/mach-omap2/clock34xx.h b/arch/arm/mach-omap2/clock34xx.h deleted file mode 100644 index 084ba71b2b31..000000000000 --- a/arch/arm/mach-omap2/clock34xx.h +++ /dev/null @@ -1,18 +0,0 @@ -/* - * OMAP34xx clock function prototypes and macros - * - * Copyright (C) 2007-2010 Texas Instruments, Inc. - * Copyright (C) 2007-2011 Nokia Corporation - */ - -#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK34XX_H -#define __ARCH_ARM_MACH_OMAP2_CLOCK34XX_H - -extern const struct clkops clkops_omap3430es2_ssi_wait; -extern const struct clkops clkops_omap3430es2_iclk_ssi_wait; -extern const struct clkops clkops_omap3430es2_hsotgusb_wait; -extern const struct clkops clkops_omap3430es2_iclk_hsotgusb_wait; -extern const struct clkops clkops_omap3430es2_dss_usbhost_wait; -extern const struct clkops clkops_omap3430es2_iclk_dss_usbhost_wait; - -#endif diff --git a/arch/arm/mach-omap2/clock3517.c b/arch/arm/mach-omap2/clock3517.c deleted file mode 100644 index 4d79ae2c0241..000000000000 --- a/arch/arm/mach-omap2/clock3517.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * OMAP3517/3505-specific clock framework functions - * - * Copyright (C) 2010 Texas Instruments, Inc. - * Copyright (C) 2011 Nokia Corporation - * - * Ranjith Lohithakshan - * Paul Walmsley - * - * Parts of this code are based on code written by - * Richard Woodruff, Tony Lindgren, Tuukka Tikkanen, Karthik Dasu, - * Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include "clock.h" -#include "clock3517.h" -#include "cm3xxx.h" -#include "cm-regbits-34xx.h" - -/* - * In AM35xx IPSS, the {ICK,FCK} enable bits for modules are exported - * in the same register at a bit offset of 0x8. The EN_ACK for ICK is - * at an offset of 4 from ICK enable bit. - */ -#define AM35XX_IPSS_ICK_MASK 0xF -#define AM35XX_IPSS_ICK_EN_ACK_OFFSET 0x4 -#define AM35XX_IPSS_ICK_FCK_OFFSET 0x8 -#define AM35XX_IPSS_CLK_IDLEST_VAL 0 - -/** - * am35xx_clk_find_idlest - return clock ACK info for AM35XX IPSS - * @clk: struct clk * being enabled - * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into - * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into - * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator - * - * The interface clocks on AM35xx IPSS reflects the clock idle status - * in the enable register itsel at a bit offset of 4 from the enable - * bit. A value of 1 indicates that clock is enabled. - */ -static void am35xx_clk_find_idlest(struct clk_hw_omap *clk, - void __iomem **idlest_reg, - u8 *idlest_bit, - u8 *idlest_val) -{ - *idlest_reg = (__force void __iomem *)(clk->enable_reg); - *idlest_bit = clk->enable_bit + AM35XX_IPSS_ICK_EN_ACK_OFFSET; - *idlest_val = AM35XX_IPSS_CLK_IDLEST_VAL; -} - -/** - * am35xx_clk_find_companion - find companion clock to @clk - * @clk: struct clk * to find the companion clock of - * @other_reg: void __iomem ** to return the companion clock CM_*CLKEN va in - * @other_bit: u8 ** to return the companion clock bit shift in - * - * Some clocks don't have companion clocks. For example, modules with - * only an interface clock (such as HECC) don't have a companion - * clock. Right now, this code relies on the hardware exporting a bit - * in the correct companion register that indicates that the - * nonexistent 'companion clock' is active. Future patches will - * associate this type of code with per-module data structures to - * avoid this issue, and remove the casts. No return value. - */ -static void am35xx_clk_find_companion(struct clk_hw_omap *clk, - void __iomem **other_reg, - u8 *other_bit) -{ - *other_reg = (__force void __iomem *)(clk->enable_reg); - if (clk->enable_bit & AM35XX_IPSS_ICK_MASK) - *other_bit = clk->enable_bit + AM35XX_IPSS_ICK_FCK_OFFSET; - else - *other_bit = clk->enable_bit - AM35XX_IPSS_ICK_FCK_OFFSET; -} -const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait = { - .find_idlest = am35xx_clk_find_idlest, - .find_companion = am35xx_clk_find_companion, -}; - -/** - * am35xx_clk_ipss_find_idlest - return CM_IDLEST info for IPSS - * @clk: struct clk * being enabled - * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into - * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into - * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator - * - * The IPSS target CM_IDLEST bit is at a different shift from the - * CM_{I,F}CLKEN bit. Pass back the correct info via @idlest_reg - * and @idlest_bit. No return value. - */ -static void am35xx_clk_ipss_find_idlest(struct clk_hw_omap *clk, - void __iomem **idlest_reg, - u8 *idlest_bit, - u8 *idlest_val) -{ - u32 r; - - r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); - *idlest_reg = (__force void __iomem *)r; - *idlest_bit = AM35XX_ST_IPSS_SHIFT; - *idlest_val = OMAP34XX_CM_IDLEST_VAL; -} - -const struct clk_hw_omap_ops clkhwops_am35xx_ipss_wait = { - .allow_idle = omap2_clkt_iclk_allow_idle, - .deny_idle = omap2_clkt_iclk_deny_idle, - .find_idlest = am35xx_clk_ipss_find_idlest, - .find_companion = omap2_clk_dflt_find_companion, -}; diff --git a/arch/arm/mach-omap2/clock3517.h b/arch/arm/mach-omap2/clock3517.h deleted file mode 100644 index ca5e5a64c2e2..000000000000 --- a/arch/arm/mach-omap2/clock3517.h +++ /dev/null @@ -1,14 +0,0 @@ -/* - * OMAP3517/3505 clock function prototypes and macros - * - * Copyright (C) 2010 Texas Instruments, Inc. - * Copyright (C) 2010 Nokia Corporation - */ - -#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK3517_H -#define __ARCH_ARM_MACH_OMAP2_CLOCK3517_H - -extern const struct clkops clkops_am35xx_ipss_module_wait; -extern const struct clkops clkops_am35xx_ipss_wait; - -#endif diff --git a/arch/arm/mach-omap2/clock36xx.c b/arch/arm/mach-omap2/clock36xx.c deleted file mode 100644 index 91ccb962e09e..000000000000 --- a/arch/arm/mach-omap2/clock36xx.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * OMAP36xx-specific clkops - * - * Copyright (C) 2010 Texas Instruments, Inc. - * Copyright (C) 2010 Nokia Corporation - * - * Mike Turquette - * Vijaykumar GN - * Paul Walmsley - * - * Parts of this code are based on code written by - * Richard Woodruff, Tony Lindgren, Tuukka Tikkanen, Karthik Dasu, - * Russell King - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/clk.h> -#include <linux/clk-provider.h> -#include <linux/io.h> - -#include "clock.h" -#include "clock36xx.h" -#define to_clk_divider(_hw) container_of(_hw, struct clk_divider, hw) - -/** - * omap36xx_pwrdn_clk_enable_with_hsdiv_restore - enable clocks suffering - * from HSDivider PWRDN problem Implements Errata ID: i556. - * @clk: DPLL output struct clk - * - * 3630 only: dpll3_m3_ck, dpll4_m2_ck, dpll4_m3_ck, dpll4_m4_ck, - * dpll4_m5_ck & dpll4_m6_ck dividers gets loaded with reset - * valueafter their respective PWRDN bits are set. Any dummy write - * (Any other value different from the Read value) to the - * corresponding CM_CLKSEL register will refresh the dividers. - */ -int omap36xx_pwrdn_clk_enable_with_hsdiv_restore(struct clk_hw *clk) -{ - struct clk_divider *parent; - struct clk_hw *parent_hw; - u32 dummy_v, orig_v; - struct clk_hw_omap *omap_clk = to_clk_hw_omap(clk); - int ret; - - /* Clear PWRDN bit of HSDIVIDER */ - ret = omap2_dflt_clk_enable(clk); - - parent_hw = __clk_get_hw(__clk_get_parent(clk->clk)); - parent = to_clk_divider(parent_hw); - - /* Restore the dividers */ - if (!ret) { - orig_v = omap2_clk_readl(omap_clk, parent->reg); - dummy_v = orig_v; - - /* Write any other value different from the Read value */ - dummy_v ^= (1 << parent->shift); - omap2_clk_writel(dummy_v, omap_clk, parent->reg); - - /* Write the original divider */ - omap2_clk_writel(orig_v, omap_clk, parent->reg); - } - - return ret; -} diff --git a/arch/arm/mach-omap2/clock36xx.h b/arch/arm/mach-omap2/clock36xx.h deleted file mode 100644 index 945bb7f083e9..000000000000 --- a/arch/arm/mach-omap2/clock36xx.h +++ /dev/null @@ -1,13 +0,0 @@ -/* - * OMAP36xx clock function prototypes and macros - * - * Copyright (C) 2010 Texas Instruments, Inc. - * Copyright (C) 2010 Nokia Corporation - */ - -#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK36XX_H -#define __ARCH_ARM_MACH_OMAP2_CLOCK36XX_H - -extern int omap36xx_pwrdn_clk_enable_with_hsdiv_restore(struct clk_hw *hw); - -#endif diff --git a/arch/arm/mach-omap2/clock3xxx.c b/arch/arm/mach-omap2/clock3xxx.c deleted file mode 100644 index a9e86db5daf9..000000000000 --- a/arch/arm/mach-omap2/clock3xxx.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * OMAP3-specific clock framework functions - * - * Copyright (C) 2007-2008 Texas Instruments, Inc. - * Copyright (C) 2007-2010 Nokia Corporation - * - * Paul Walmsley - * Jouni Högander - * - * Parts of this code are based on code written by - * Richard Woodruff, Tony Lindgren, Tuukka Tikkanen, Karthik Dasu - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include "soc.h" -#include "clock.h" -#include "clock3xxx.h" -#include "prm2xxx_3xxx.h" -#include "prm-regbits-34xx.h" -#include "cm2xxx_3xxx.h" -#include "cm-regbits-34xx.h" - -/* - * DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks - * that are sourced by DPLL5, and both of these require this clock - * to be at 120 MHz for proper operation. - */ -#define DPLL5_FREQ_FOR_USBHOST 120000000 - -/* needed by omap3_core_dpll_m2_set_rate() */ -struct clk *sdrc_ick_p, *arm_fck_p; - -/** - * omap3_dpll4_set_rate - set rate for omap3 per-dpll - * @hw: clock to change - * @rate: target rate for clock - * @parent_rate: rate of the parent clock - * - * Check if the current SoC supports the per-dpll reprogram operation - * or not, and then do the rate change if supported. Returns -EINVAL - * if not supported, 0 for success, and potential error codes from the - * clock rate change. - */ -int omap3_dpll4_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - /* - * According to the 12-5 CDP code from TI, "Limitation 2.5" - * on 3430ES1 prevents us from changing DPLL multipliers or dividers - * on DPLL4. - */ - if (ti_clk_features.flags & TI_CLK_DPLL4_DENY_REPROGRAM) { - pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n"); - return -EINVAL; - } - - return omap3_noncore_dpll_set_rate(hw, rate, parent_rate); -} - -/** - * omap3_dpll4_set_rate_and_parent - set rate and parent for omap3 per-dpll - * @hw: clock to change - * @rate: target rate for clock - * @parent_rate: rate of the parent clock - * @index: parent index, 0 - reference clock, 1 - bypass clock - * - * Check if the current SoC support the per-dpll reprogram operation - * or not, and then do the rate + parent change if supported. Returns - * -EINVAL if not supported, 0 for success, and potential error codes - * from the clock rate change. - */ -int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate, u8 index) -{ - if (ti_clk_features.flags & TI_CLK_DPLL4_DENY_REPROGRAM) { - pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n"); - return -EINVAL; - } - - return omap3_noncore_dpll_set_rate_and_parent(hw, rate, parent_rate, - index); -} - -void __init omap3_clk_lock_dpll5(void) -{ - struct clk *dpll5_clk; - struct clk *dpll5_m2_clk; - - dpll5_clk = clk_get(NULL, "dpll5_ck"); - clk_set_rate(dpll5_clk, DPLL5_FREQ_FOR_USBHOST); - clk_prepare_enable(dpll5_clk); - - /* Program dpll5_m2_clk divider for no division */ - dpll5_m2_clk = clk_get(NULL, "dpll5_m2_ck"); - clk_prepare_enable(dpll5_m2_clk); - clk_set_rate(dpll5_m2_clk, DPLL5_FREQ_FOR_USBHOST); - - clk_disable_unprepare(dpll5_m2_clk); - clk_disable_unprepare(dpll5_clk); - return; -} - -/* Common clock code */ - -/* - * Switch the MPU rate if specified on cmdline. We cannot do this - * early until cmdline is parsed. XXX This should be removed from the - * clock code and handled by the OPP layer code in the near future. - */ -static int __init omap3xxx_clk_arch_init(void) -{ - int ret; - - if (!cpu_is_omap34xx()) - return 0; - - ret = omap2_clk_switch_mpurate_at_boot("dpll1_ck"); - if (!ret) - omap2_clk_print_new_rates("osc_sys_ck", "core_ck", "arm_fck"); - - return ret; -} - -omap_arch_initcall(omap3xxx_clk_arch_init); - - diff --git a/arch/arm/mach-omap2/clock44xx.h b/arch/arm/mach-omap2/clock44xx.h deleted file mode 100644 index 287a46f78d97..000000000000 --- a/arch/arm/mach-omap2/clock44xx.h +++ /dev/null @@ -1,20 +0,0 @@ -/* - * OMAP4 clock function prototypes and macros - * - * Copyright (C) 2009 Texas Instruments, Inc. - * Copyright (C) 2010 Nokia Corporation - */ - -#ifndef __ARCH_ARM_MACH_OMAP2_CLOCK44XX_H -#define __ARCH_ARM_MACH_OMAP2_CLOCK44XX_H - -/* - * OMAP4430_REGM4XEN_MULT: If the CM_CLKMODE_DPLL_ABE.DPLL_REGM4XEN bit is - * set, then the DPLL's lock frequency is multiplied by 4 (OMAP4430 TRM - * vV Section 3.6.3.3.1 "DPLLs Output Clocks Parameters") - */ -#define OMAP4430_REGM4XEN_MULT 4 - -int omap4xxx_clk_init(void); - -#endif diff --git a/arch/arm/mach-omap2/clock_common_data.c b/arch/arm/mach-omap2/clock_common_data.c deleted file mode 100644 index 61b60dfb14ce..000000000000 --- a/arch/arm/mach-omap2/clock_common_data.c +++ /dev/null @@ -1,115 +0,0 @@ -/* - * linux/arch/arm/mach-omap2/clock_common_data.c - * - * Copyright (C) 2005-2009 Texas Instruments, Inc. - * Copyright (C) 2004-2009 Nokia Corporation - * - * Contacts: - * Richard Woodruff <r-woodruff2@ti.com> - * Paul Walmsley - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This file contains clock data that is common to both the OMAP2xxx and - * OMAP3xxx clock definition files. - */ - -#include "clock.h" - -/* clksel_rate data common to 24xx/343x */ -const struct clksel_rate gpt_32k_rates[] = { - { .div = 1, .val = 0, .flags = RATE_IN_24XX | RATE_IN_3XXX }, - { .div = 0 } -}; - -const struct clksel_rate gpt_sys_rates[] = { - { .div = 1, .val = 1, .flags = RATE_IN_24XX | RATE_IN_3XXX }, - { .div = 0 } -}; - -const struct clksel_rate gfx_l3_rates[] = { - { .div = 1, .val = 1, .flags = RATE_IN_24XX | RATE_IN_3XXX }, - { .div = 2, .val = 2, .flags = RATE_IN_24XX | RATE_IN_3XXX }, - { .div = 3, .val = 3, .flags = RATE_IN_243X | RATE_IN_3XXX }, - { .div = 4, .val = 4, .flags = RATE_IN_243X | RATE_IN_3XXX }, - { .div = 0 } -}; - -const struct clksel_rate dsp_ick_rates[] = { - { .div = 1, .val = 1, .flags = RATE_IN_24XX }, - { .div = 2, .val = 2, .flags = RATE_IN_24XX }, - { .div = 3, .val = 3, .flags = RATE_IN_243X }, - { .div = 0 }, -}; - - -/* clksel_rate blocks shared between OMAP44xx and AM33xx */ - -const struct clksel_rate div_1_0_rates[] = { - { .div = 1, .val = 0, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 0 }, -}; - -const struct clksel_rate div3_1to4_rates[] = { - { .div = 1, .val = 0, .flags = RATE_IN_4430 }, - { .div = 2, .val = 1, .flags = RATE_IN_4430 }, - { .div = 4, .val = 2, .flags = RATE_IN_4430 }, - { .div = 0 }, -}; - -const struct clksel_rate div_1_1_rates[] = { - { .div = 1, .val = 1, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 0 }, -}; - -const struct clksel_rate div_1_2_rates[] = { - { .div = 1, .val = 2, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 0 }, -}; - -const struct clksel_rate div_1_3_rates[] = { - { .div = 1, .val = 3, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 0 }, -}; - -const struct clksel_rate div_1_4_rates[] = { - { .div = 1, .val = 4, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 0 }, -}; - -const struct clksel_rate div31_1to31_rates[] = { - { .div = 1, .val = 1, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 2, .val = 2, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 3, .val = 3, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 4, .val = 4, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 5, .val = 5, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 6, .val = 6, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 7, .val = 7, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 8, .val = 8, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 9, .val = 9, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 10, .val = 10, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 11, .val = 11, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 12, .val = 12, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 13, .val = 13, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 14, .val = 14, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 15, .val = 15, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 16, .val = 16, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 17, .val = 17, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 18, .val = 18, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 19, .val = 19, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 20, .val = 20, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 21, .val = 21, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 22, .val = 22, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 23, .val = 23, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 24, .val = 24, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 25, .val = 25, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 26, .val = 26, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 27, .val = 27, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 28, .val = 28, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 29, .val = 29, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 30, .val = 30, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 31, .val = 31, .flags = RATE_IN_4430 | RATE_IN_AM33XX }, - { .div = 0 }, -}; diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index 820dde8b5b04..a253aafbb9a2 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -37,7 +37,6 @@ #include "clock.h" #include "clock2xxx.h" #include "clock3xxx.h" -#include "clock44xx.h" #include "omap-pm.h" #include "sdrc.h" #include "control.h" @@ -723,6 +722,8 @@ int __init omap_clk_init(void) ti_clk_init_features(); + omap2_clk_setup_ll_ops(); + if (of_have_populated_dt()) { ret = omap_control_init(); if (ret) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 486cc4ded190..6ef9e6341d96 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -130,6 +130,7 @@ #include <linux/kernel.h> #include <linux/errno.h> #include <linux/io.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/err.h> diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c index b1aad7e1426c..2a1a4180d5d0 100644 --- a/arch/arm/mach-omap2/pm24xx.c +++ b/arch/arm/mach-omap2/pm24xx.c @@ -25,6 +25,7 @@ #include <linux/sysfs.h> #include <linux/module.h> #include <linux/delay.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/irq.h> #include <linux/time.h> diff --git a/arch/arm/mach-orion5x/board-dt.c b/arch/arm/mach-orion5x/board-dt.c index 79f033b1ddff..d0871786dd8a 100644 --- a/arch/arm/mach-orion5x/board-dt.c +++ b/arch/arm/mach-orion5x/board-dt.c @@ -16,7 +16,6 @@ #include <linux/of_platform.h> #include <linux/cpu.h> #include <linux/mbus.h> -#include <linux/clk-provider.h> #include <linux/clocksource.h> #include <asm/system_misc.h> #include <asm/mach/arch.h> diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c index 16547f2641a3..25d6676f8d6e 100644 --- a/arch/arm/mach-s3c64xx/common.c +++ b/arch/arm/mach-s3c64xx/common.c @@ -21,7 +21,6 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/module.h> -#include <linux/clk-provider.h> #include <linux/interrupt.h> #include <linux/ioport.h> #include <linux/serial_core.h> diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index 5d1a318f1302..0fa4c5f8b1be 100644 --- a/arch/arm/mach-tegra/Kconfig +++ b/arch/arm/mach-tegra/Kconfig @@ -8,6 +8,7 @@ menuconfig ARCH_TEGRA select HAVE_ARM_SCU if SMP select HAVE_ARM_TWD if SMP select PINCTRL + select PM_OPP select ARCH_HAS_RESET_CONTROLLER select RESET_CONTROLLER select SOC_BUS diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c index e31d3d61c998..b316e18a76aa 100644 --- a/arch/arm/mach-ux500/cpu.c +++ b/arch/arm/mach-ux500/cpu.c @@ -72,21 +72,12 @@ void __init ux500_init_irq(void) * Init clocks here so that they are available for system timer * initialization. */ - if (cpu_is_u8500_family()) { - u8500_of_clk_init(U8500_CLKRST1_BASE, - U8500_CLKRST2_BASE, - U8500_CLKRST3_BASE, - U8500_CLKRST5_BASE, - U8500_CLKRST6_BASE); - } else if (cpu_is_u9540()) { - u9540_clk_init(U8500_CLKRST1_BASE, U8500_CLKRST2_BASE, - U8500_CLKRST3_BASE, U8500_CLKRST5_BASE, - U8500_CLKRST6_BASE); - } else if (cpu_is_u8540()) { - u8540_clk_init(U8500_CLKRST1_BASE, U8500_CLKRST2_BASE, - U8500_CLKRST3_BASE, U8500_CLKRST5_BASE, - U8500_CLKRST6_BASE); - } + if (cpu_is_u8500_family()) + u8500_clk_init(); + else if (cpu_is_u9540()) + u9540_clk_init(); + else if (cpu_is_u8540()) + u8540_clk_init(); } static const char * __init ux500_get_machine(void) diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index f3067d4d4e35..926ae8d9abc5 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -34,7 +34,6 @@ #include <linux/kexec.h> #include <linux/crash_dump.h> #include <linux/root_dev.h> -#include <linux/clk-provider.h> #include <linux/cpu.h> #include <linux/interrupt.h> #include <linux/smp.h> diff --git a/arch/mips/alchemy/common/clock.c b/arch/mips/alchemy/common/clock.c index 6e46abe0dac6..bd34f4093cd9 100644 --- a/arch/mips/alchemy/common/clock.c +++ b/arch/mips/alchemy/common/clock.c @@ -35,6 +35,7 @@ #include <linux/init.h> #include <linux/io.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/slab.h> @@ -389,12 +390,11 @@ static long alchemy_calc_div(unsigned long rate, unsigned long prate, return div1; } -static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk, - int scale, int maxdiv) +static int alchemy_clk_fgcs_detr(struct clk_hw *hw, + struct clk_rate_request *req, + int scale, int maxdiv) { - struct clk *pc, *bpc, *free; + struct clk_hw *pc, *bpc, *free; long tdv, tpr, pr, nr, br, bpr, diff, lastdiff; int j; @@ -408,7 +408,7 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate, * the one that gets closest to but not over the requested rate. */ for (j = 0; j < 7; j++) { - pc = clk_get_parent_by_index(hw->clk, j); + pc = clk_hw_get_parent_by_index(hw, j); if (!pc) break; @@ -416,20 +416,20 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate, * XXX: we would actually want clk_has_active_children() * but this is a good-enough approximation for now. */ - if (!__clk_is_prepared(pc)) { + if (!clk_hw_is_prepared(pc)) { if (!free) free = pc; } - pr = clk_get_rate(pc); - if (pr < rate) + pr = clk_hw_get_rate(pc); + if (pr < req->rate) continue; /* what can hardware actually provide */ - tdv = alchemy_calc_div(rate, pr, scale, maxdiv, NULL); + tdv = alchemy_calc_div(req->rate, pr, scale, maxdiv, NULL); nr = pr / tdv; - diff = rate - nr; - if (nr > rate) + diff = req->rate - nr; + if (nr > req->rate) continue; if (diff < lastdiff) { @@ -448,15 +448,16 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate, */ if (lastdiff && free) { for (j = (maxdiv == 4) ? 1 : scale; j <= maxdiv; j += scale) { - tpr = rate * j; + tpr = req->rate * j; if (tpr < 0) break; - pr = clk_round_rate(free, tpr); + pr = clk_hw_round_rate(free, tpr); - tdv = alchemy_calc_div(rate, pr, scale, maxdiv, NULL); + tdv = alchemy_calc_div(req->rate, pr, scale, maxdiv, + NULL); nr = pr / tdv; - diff = rate - nr; - if (nr > rate) + diff = req->rate - nr; + if (nr > req->rate) continue; if (diff < lastdiff) { lastdiff = diff; @@ -469,9 +470,14 @@ static long alchemy_clk_fgcs_detr(struct clk_hw *hw, unsigned long rate, } } - *best_parent_rate = bpr; - *best_parent_clk = __clk_get_hw(bpc); - return br; + if (br < 0) + return br; + + req->best_parent_rate = bpr; + req->best_parent_hw = bpc; + req->rate = br; + + return 0; } static int alchemy_clk_fgv1_en(struct clk_hw *hw) @@ -562,14 +568,10 @@ static unsigned long alchemy_clk_fgv1_recalc(struct clk_hw *hw, return parent_rate / v; } -static long alchemy_clk_fgv1_detr(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk) +static int alchemy_clk_fgv1_detr(struct clk_hw *hw, + struct clk_rate_request *req) { - return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate, - best_parent_clk, 2, 512); + return alchemy_clk_fgcs_detr(hw, req, 2, 512); } /* Au1000, Au1100, Au15x0, Au12x0 */ @@ -696,11 +698,8 @@ static unsigned long alchemy_clk_fgv2_recalc(struct clk_hw *hw, return t; } -static long alchemy_clk_fgv2_detr(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk) +static int alchemy_clk_fgv2_detr(struct clk_hw *hw, + struct clk_rate_request *req) { struct alchemy_fgcs_clk *c = to_fgcs_clk(hw); int scale, maxdiv; @@ -713,8 +712,7 @@ static long alchemy_clk_fgv2_detr(struct clk_hw *hw, unsigned long rate, maxdiv = 512; } - return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate, - best_parent_clk, scale, maxdiv); + return alchemy_clk_fgcs_detr(hw, req, scale, maxdiv); } /* Au1300 larger input mux, no separate disable bit, flexible divider */ @@ -917,17 +915,13 @@ static int alchemy_clk_csrc_setr(struct clk_hw *hw, unsigned long rate, return 0; } -static long alchemy_clk_csrc_detr(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk) +static int alchemy_clk_csrc_detr(struct clk_hw *hw, + struct clk_rate_request *req) { struct alchemy_fgcs_clk *c = to_fgcs_clk(hw); int scale = c->dt[2] == 3 ? 1 : 2; /* au1300 check */ - return alchemy_clk_fgcs_detr(hw, rate, best_parent_rate, - best_parent_clk, scale, 4); + return alchemy_clk_fgcs_detr(hw, req, scale, 4); } static struct clk_ops alchemy_clkops_csrc = { diff --git a/arch/powerpc/platforms/512x/clock-commonclk.c b/arch/powerpc/platforms/512x/clock-commonclk.c index f691bcabd710..c50ea76ba66c 100644 --- a/arch/powerpc/platforms/512x/clock-commonclk.c +++ b/arch/powerpc/platforms/512x/clock-commonclk.c @@ -12,6 +12,7 @@ */ #include <linux/bitops.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/device.h> diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c index 3984ea96e5f7..a450e7af877c 100644 --- a/drivers/acpi/acpi_apd.c +++ b/drivers/acpi/acpi_apd.c @@ -16,7 +16,6 @@ #include <linux/clkdev.h> #include <linux/acpi.h> #include <linux/err.h> -#include <linux/clk.h> #include <linux/pm.h> #include "internal.h" diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index 46b58abb08c5..502454c24e69 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -11,7 +11,6 @@ */ #include <linux/acpi.h> -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/err.h> diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index c4cf075a2320..d08b3e5985be 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -9,7 +9,7 @@ obj-$(CONFIG_COMMON_CLK) += clk-gate.o obj-$(CONFIG_COMMON_CLK) += clk-mux.o obj-$(CONFIG_COMMON_CLK) += clk-composite.o obj-$(CONFIG_COMMON_CLK) += clk-fractional-divider.o -obj-$(CONFIG_COMMON_CLK) += clk-gpio-gate.o +obj-$(CONFIG_COMMON_CLK) += clk-gpio.o ifeq ($(CONFIG_OF), y) obj-$(CONFIG_COMMON_CLK) += clk-conf.o endif diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c index 27dfa965cfed..fd7247deabdc 100644 --- a/drivers/clk/at91/clk-main.c +++ b/drivers/clk/at91/clk-main.c @@ -614,17 +614,12 @@ void __init of_at91sam9x5_clk_main_setup(struct device_node *np, int num_parents; unsigned int irq; const char *name = np->name; - int i; num_parents = of_clk_get_parent_count(np); if (num_parents <= 0 || num_parents > 2) return; - for (i = 0; i < num_parents; ++i) { - parent_names[i] = of_clk_get_parent_name(np, i); - if (!parent_names[i]) - return; - } + of_clk_parent_fill(np, parent_names, num_parents); of_property_read_string(np, "clock-output-names", &name); diff --git a/drivers/clk/at91/clk-master.c b/drivers/clk/at91/clk-master.c index 5b3ded5205a2..620ea323356b 100644 --- a/drivers/clk/at91/clk-master.c +++ b/drivers/clk/at91/clk-master.c @@ -222,7 +222,6 @@ of_at91_clk_master_setup(struct device_node *np, struct at91_pmc *pmc, { struct clk *clk; int num_parents; - int i; unsigned int irq; const char *parent_names[MASTER_SOURCE_MAX]; const char *name = np->name; @@ -232,11 +231,7 @@ of_at91_clk_master_setup(struct device_node *np, struct at91_pmc *pmc, if (num_parents <= 0 || num_parents > MASTER_SOURCE_MAX) return; - for (i = 0; i < num_parents; ++i) { - parent_names[i] = of_clk_get_parent_name(np, i); - if (!parent_names[i]) - return; - } + of_clk_parent_fill(np, parent_names, num_parents); of_property_read_string(np, "clock-output-names", &name); diff --git a/drivers/clk/at91/clk-peripheral.c b/drivers/clk/at91/clk-peripheral.c index df2c1afa52b4..e4d7b574f1ea 100644 --- a/drivers/clk/at91/clk-peripheral.c +++ b/drivers/clk/at91/clk-peripheral.c @@ -134,7 +134,7 @@ at91_clk_register_peripheral(struct at91_pmc *pmc, const char *name, static void clk_sam9x5_peripheral_autodiv(struct clk_sam9x5_peripheral *periph) { - struct clk *parent; + struct clk_hw *parent; unsigned long parent_rate; int shift = 0; @@ -142,8 +142,8 @@ static void clk_sam9x5_peripheral_autodiv(struct clk_sam9x5_peripheral *periph) return; if (periph->range.max) { - parent = clk_get_parent_by_index(periph->hw.clk, 0); - parent_rate = __clk_get_rate(parent); + parent = clk_hw_get_parent_by_index(&periph->hw, 0); + parent_rate = clk_hw_get_rate(parent); if (!parent_rate) return; diff --git a/drivers/clk/at91/clk-programmable.c b/drivers/clk/at91/clk-programmable.c index 8c86c0f7847a..14b270b85fec 100644 --- a/drivers/clk/at91/clk-programmable.c +++ b/drivers/clk/at91/clk-programmable.c @@ -54,46 +54,47 @@ static unsigned long clk_programmable_recalc_rate(struct clk_hw *hw, return parent_rate >> pres; } -static long clk_programmable_determine_rate(struct clk_hw *hw, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_hw) +static int clk_programmable_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { - struct clk *parent = NULL; + struct clk_hw *parent; long best_rate = -EINVAL; unsigned long parent_rate; unsigned long tmp_rate; int shift; int i; - for (i = 0; i < __clk_get_num_parents(hw->clk); i++) { - parent = clk_get_parent_by_index(hw->clk, i); + for (i = 0; i < clk_hw_get_num_parents(hw); i++) { + parent = clk_hw_get_parent_by_index(hw, i); if (!parent) continue; - parent_rate = __clk_get_rate(parent); + parent_rate = clk_hw_get_rate(parent); for (shift = 0; shift < PROG_PRES_MASK; shift++) { tmp_rate = parent_rate >> shift; - if (tmp_rate <= rate) + if (tmp_rate <= req->rate) break; } - if (tmp_rate > rate) + if (tmp_rate > req->rate) continue; - if (best_rate < 0 || (rate - tmp_rate) < (rate - best_rate)) { + if (best_rate < 0 || + (req->rate - tmp_rate) < (req->rate - best_rate)) { best_rate = tmp_rate; - *best_parent_rate = parent_rate; - *best_parent_hw = __clk_get_hw(parent); + req->best_parent_rate = parent_rate; + req->best_parent_hw = parent; } if (!best_rate) break; } - return best_rate; + if (best_rate < 0) + return best_rate; + + req->rate = best_rate; + return 0; } static int clk_programmable_set_parent(struct clk_hw *hw, u8 index) @@ -230,7 +231,6 @@ of_at91_clk_prog_setup(struct device_node *np, struct at91_pmc *pmc, { int num; u32 id; - int i; struct clk *clk; int num_parents; const char *parent_names[PROG_SOURCE_MAX]; @@ -241,11 +241,7 @@ of_at91_clk_prog_setup(struct device_node *np, struct at91_pmc *pmc, if (num_parents <= 0 || num_parents > PROG_SOURCE_MAX) return; - for (i = 0; i < num_parents; ++i) { - parent_names[i] = of_clk_get_parent_name(np, i); - if (!parent_names[i]) - return; - } + of_clk_parent_fill(np, parent_names, num_parents); num = of_get_child_count(np); if (!num || num > (PROG_ID_MAX + 1)) diff --git a/drivers/clk/at91/clk-slow.c b/drivers/clk/at91/clk-slow.c index 98a84a865fe1..d0d5076a9b94 100644 --- a/drivers/clk/at91/clk-slow.c +++ b/drivers/clk/at91/clk-slow.c @@ -10,8 +10,10 @@ * */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/clk/at91_pmc.h> #include <linux/delay.h> #include <linux/of.h> @@ -371,17 +373,12 @@ void __init of_at91sam9x5_clk_slow_setup(struct device_node *np, const char *parent_names[2]; int num_parents; const char *name = np->name; - int i; num_parents = of_clk_get_parent_count(np); if (num_parents <= 0 || num_parents > 2) return; - for (i = 0; i < num_parents; ++i) { - parent_names[i] = of_clk_get_parent_name(np, i); - if (!parent_names[i]) - return; - } + of_clk_parent_fill(np, parent_names, num_parents); of_property_read_string(np, "clock-output-names", &name); @@ -449,17 +446,12 @@ void __init of_at91sam9260_clk_slow_setup(struct device_node *np, const char *parent_names[2]; int num_parents; const char *name = np->name; - int i; num_parents = of_clk_get_parent_count(np); if (num_parents != 2) return; - for (i = 0; i < num_parents; ++i) { - parent_names[i] = of_clk_get_parent_name(np, i); - if (!parent_names[i]) - return; - } + of_clk_parent_fill(np, parent_names, num_parents); of_property_read_string(np, "clock-output-names", &name); diff --git a/drivers/clk/at91/clk-smd.c b/drivers/clk/at91/clk-smd.c index 3817ea865ca2..a7f8501cfa05 100644 --- a/drivers/clk/at91/clk-smd.c +++ b/drivers/clk/at91/clk-smd.c @@ -145,7 +145,6 @@ void __init of_at91sam9x5_clk_smd_setup(struct device_node *np, struct at91_pmc *pmc) { struct clk *clk; - int i; int num_parents; const char *parent_names[SMD_SOURCE_MAX]; const char *name = np->name; @@ -154,11 +153,7 @@ void __init of_at91sam9x5_clk_smd_setup(struct device_node *np, if (num_parents <= 0 || num_parents > SMD_SOURCE_MAX) return; - for (i = 0; i < num_parents; i++) { - parent_names[i] = of_clk_get_parent_name(np, i); - if (!parent_names[i]) - return; - } + of_clk_parent_fill(np, parent_names, num_parents); of_property_read_string(np, "clock-output-names", &name); diff --git a/drivers/clk/at91/clk-usb.c b/drivers/clk/at91/clk-usb.c index b0cbd2b1ff59..8ab8502778a2 100644 --- a/drivers/clk/at91/clk-usb.c +++ b/drivers/clk/at91/clk-usb.c @@ -56,47 +56,43 @@ static unsigned long at91sam9x5_clk_usb_recalc_rate(struct clk_hw *hw, return DIV_ROUND_CLOSEST(parent_rate, (usbdiv + 1)); } -static long at91sam9x5_clk_usb_determine_rate(struct clk_hw *hw, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_hw) +static int at91sam9x5_clk_usb_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { - struct clk *parent = NULL; + struct clk_hw *parent; long best_rate = -EINVAL; unsigned long tmp_rate; int best_diff = -1; int tmp_diff; int i; - for (i = 0; i < __clk_get_num_parents(hw->clk); i++) { + for (i = 0; i < clk_hw_get_num_parents(hw); i++) { int div; - parent = clk_get_parent_by_index(hw->clk, i); + parent = clk_hw_get_parent_by_index(hw, i); if (!parent) continue; for (div = 1; div < SAM9X5_USB_MAX_DIV + 2; div++) { unsigned long tmp_parent_rate; - tmp_parent_rate = rate * div; - tmp_parent_rate = __clk_round_rate(parent, + tmp_parent_rate = req->rate * div; + tmp_parent_rate = clk_hw_round_rate(parent, tmp_parent_rate); tmp_rate = DIV_ROUND_CLOSEST(tmp_parent_rate, div); - if (tmp_rate < rate) - tmp_diff = rate - tmp_rate; + if (tmp_rate < req->rate) + tmp_diff = req->rate - tmp_rate; else - tmp_diff = tmp_rate - rate; + tmp_diff = tmp_rate - req->rate; if (best_diff < 0 || best_diff > tmp_diff) { best_rate = tmp_rate; best_diff = tmp_diff; - *best_parent_rate = tmp_parent_rate; - *best_parent_hw = __clk_get_hw(parent); + req->best_parent_rate = tmp_parent_rate; + req->best_parent_hw = parent; } - if (!best_diff || tmp_rate < rate) + if (!best_diff || tmp_rate < req->rate) break; } @@ -104,7 +100,11 @@ static long at91sam9x5_clk_usb_determine_rate(struct clk_hw *hw, break; } - return best_rate; + if (best_rate < 0) + return best_rate; + + req->rate = best_rate; + return 0; } static int at91sam9x5_clk_usb_set_parent(struct clk_hw *hw, u8 index) @@ -273,7 +273,7 @@ static long at91rm9200_clk_usb_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate) { struct at91rm9200_clk_usb *usb = to_at91rm9200_clk_usb(hw); - struct clk *parent = __clk_get_parent(hw->clk); + struct clk_hw *parent = clk_hw_get_parent(hw); unsigned long bestrate = 0; int bestdiff = -1; unsigned long tmprate; @@ -287,7 +287,7 @@ static long at91rm9200_clk_usb_round_rate(struct clk_hw *hw, unsigned long rate, continue; tmp_parent_rate = rate * usb->divisors[i]; - tmp_parent_rate = __clk_round_rate(parent, tmp_parent_rate); + tmp_parent_rate = clk_hw_round_rate(parent, tmp_parent_rate); tmprate = DIV_ROUND_CLOSEST(tmp_parent_rate, usb->divisors[i]); if (tmprate < rate) tmpdiff = rate - tmprate; @@ -373,7 +373,6 @@ void __init of_at91sam9x5_clk_usb_setup(struct device_node *np, struct at91_pmc *pmc) { struct clk *clk; - int i; int num_parents; const char *parent_names[USB_SOURCE_MAX]; const char *name = np->name; @@ -382,11 +381,7 @@ void __init of_at91sam9x5_clk_usb_setup(struct device_node *np, if (num_parents <= 0 || num_parents > USB_SOURCE_MAX) return; - for (i = 0; i < num_parents; i++) { - parent_names[i] = of_clk_get_parent_name(np, i); - if (!parent_names[i]) - return; - } + of_clk_parent_fill(np, parent_names, num_parents); of_property_read_string(np, "clock-output-names", &name); diff --git a/drivers/clk/at91/pmc.c b/drivers/clk/at91/pmc.c index 39be2be82b0a..d1844f1f3729 100644 --- a/drivers/clk/at91/pmc.c +++ b/drivers/clk/at91/pmc.c @@ -125,7 +125,6 @@ static int pmc_irq_map(struct irq_domain *h, unsigned int virq, irq_set_chip_and_handler(virq, &pmc_irq, handle_level_irq); - set_irq_flags(virq, IRQF_VALID); irq_set_chip_data(virq, pmc); return 0; diff --git a/drivers/clk/at91/pmc.h b/drivers/clk/at91/pmc.h index eb8e5dc9076d..8b87771c69b2 100644 --- a/drivers/clk/at91/pmc.h +++ b/drivers/clk/at91/pmc.h @@ -59,71 +59,63 @@ static inline void pmc_write(struct at91_pmc *pmc, int offset, u32 value) int of_at91_get_clk_range(struct device_node *np, const char *propname, struct clk_range *range); -extern void __init of_at91sam9260_clk_slow_setup(struct device_node *np, - struct at91_pmc *pmc); - -extern void __init of_at91rm9200_clk_main_osc_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9x5_clk_main_rc_osc_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91rm9200_clk_main_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9x5_clk_main_setup(struct device_node *np, - struct at91_pmc *pmc); - -extern void __init of_at91rm9200_clk_pll_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9g45_clk_pll_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9g20_clk_pllb_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_sama5d3_clk_pll_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9x5_clk_plldiv_setup(struct device_node *np, - struct at91_pmc *pmc); - -extern void __init of_at91rm9200_clk_master_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9x5_clk_master_setup(struct device_node *np, - struct at91_pmc *pmc); - -extern void __init of_at91rm9200_clk_sys_setup(struct device_node *np, - struct at91_pmc *pmc); - -extern void __init of_at91rm9200_clk_periph_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9x5_clk_periph_setup(struct device_node *np, - struct at91_pmc *pmc); - -extern void __init of_at91rm9200_clk_prog_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9g45_clk_prog_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9x5_clk_prog_setup(struct device_node *np, - struct at91_pmc *pmc); - -#if defined(CONFIG_HAVE_AT91_UTMI) -extern void __init of_at91sam9x5_clk_utmi_setup(struct device_node *np, - struct at91_pmc *pmc); -#endif - -#if defined(CONFIG_HAVE_AT91_USB_CLK) -extern void __init of_at91rm9200_clk_usb_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9x5_clk_usb_setup(struct device_node *np, - struct at91_pmc *pmc); -extern void __init of_at91sam9n12_clk_usb_setup(struct device_node *np, - struct at91_pmc *pmc); -#endif - -#if defined(CONFIG_HAVE_AT91_SMD) -extern void __init of_at91sam9x5_clk_smd_setup(struct device_node *np, - struct at91_pmc *pmc); -#endif - -#if defined(CONFIG_HAVE_AT91_H32MX) -extern void __init of_sama5d4_clk_h32mx_setup(struct device_node *np, - struct at91_pmc *pmc); -#endif +void of_at91sam9260_clk_slow_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_at91rm9200_clk_main_osc_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9x5_clk_main_rc_osc_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91rm9200_clk_main_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9x5_clk_main_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_at91rm9200_clk_pll_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9g45_clk_pll_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9g20_clk_pllb_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_sama5d3_clk_pll_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9x5_clk_plldiv_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_at91rm9200_clk_master_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9x5_clk_master_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_at91rm9200_clk_sys_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_at91rm9200_clk_periph_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9x5_clk_periph_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_at91rm9200_clk_prog_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9g45_clk_prog_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9x5_clk_prog_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_at91sam9x5_clk_utmi_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_at91rm9200_clk_usb_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9x5_clk_usb_setup(struct device_node *np, + struct at91_pmc *pmc); +void of_at91sam9n12_clk_usb_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_at91sam9x5_clk_smd_setup(struct device_node *np, + struct at91_pmc *pmc); + +void of_sama5d4_clk_h32mx_setup(struct device_node *np, + struct at91_pmc *pmc); #endif /* __PMC_H_ */ diff --git a/drivers/clk/bcm/clk-kona.c b/drivers/clk/bcm/clk-kona.c index 79a98506c433..3a15347b4233 100644 --- a/drivers/clk/bcm/clk-kona.c +++ b/drivers/clk/bcm/clk-kona.c @@ -16,6 +16,7 @@ #include <linux/delay.h> #include <linux/kernel.h> +#include <linux/clk.h> /* * "Policies" affect the frequencies of bus clocks provided by a @@ -1010,25 +1011,23 @@ static long kona_peri_clk_round_rate(struct clk_hw *hw, unsigned long rate, struct bcm_clk_div *div = &bcm_clk->u.peri->div; if (!divider_exists(div)) - return __clk_get_rate(hw->clk); + return clk_hw_get_rate(hw); /* Quietly avoid a zero rate */ return round_rate(bcm_clk->ccu, div, &bcm_clk->u.peri->pre_div, rate ? rate : 1, *parent_rate, NULL); } -static long kona_peri_clk_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, struct clk_hw **best_parent) +static int kona_peri_clk_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct kona_clk *bcm_clk = to_kona_clk(hw); - struct clk *clk = hw->clk; - struct clk *current_parent; + struct clk_hw *current_parent; unsigned long parent_rate; unsigned long best_delta; unsigned long best_rate; u32 parent_count; + long rate; u32 which; /* @@ -1037,18 +1036,25 @@ static long kona_peri_clk_determine_rate(struct clk_hw *hw, unsigned long rate, */ WARN_ON_ONCE(bcm_clk->init_data.flags & CLK_SET_RATE_NO_REPARENT); parent_count = (u32)bcm_clk->init_data.num_parents; - if (parent_count < 2) - return kona_peri_clk_round_rate(hw, rate, best_parent_rate); + if (parent_count < 2) { + rate = kona_peri_clk_round_rate(hw, req->rate, + &req->best_parent_rate); + if (rate < 0) + return rate; + + req->rate = rate; + return 0; + } /* Unless we can do better, stick with current parent */ - current_parent = clk_get_parent(clk); - parent_rate = __clk_get_rate(current_parent); - best_rate = kona_peri_clk_round_rate(hw, rate, &parent_rate); - best_delta = abs(best_rate - rate); + current_parent = clk_hw_get_parent(hw); + parent_rate = clk_hw_get_rate(current_parent); + best_rate = kona_peri_clk_round_rate(hw, req->rate, &parent_rate); + best_delta = abs(best_rate - req->rate); /* Check whether any other parent clock can produce a better result */ for (which = 0; which < parent_count; which++) { - struct clk *parent = clk_get_parent_by_index(clk, which); + struct clk_hw *parent = clk_hw_get_parent_by_index(hw, which); unsigned long delta; unsigned long other_rate; @@ -1057,18 +1063,20 @@ static long kona_peri_clk_determine_rate(struct clk_hw *hw, unsigned long rate, continue; /* We don't support CLK_SET_RATE_PARENT */ - parent_rate = __clk_get_rate(parent); - other_rate = kona_peri_clk_round_rate(hw, rate, &parent_rate); - delta = abs(other_rate - rate); + parent_rate = clk_hw_get_rate(parent); + other_rate = kona_peri_clk_round_rate(hw, req->rate, + &parent_rate); + delta = abs(other_rate - req->rate); if (delta < best_delta) { best_delta = delta; best_rate = other_rate; - *best_parent = __clk_get_hw(parent); - *best_parent_rate = parent_rate; + req->best_parent_hw = parent; + req->best_parent_rate = parent_rate; } } - return best_rate; + req->rate = best_rate; + return 0; } static int kona_peri_clk_set_parent(struct clk_hw *hw, u8 index) @@ -1130,7 +1138,7 @@ static int kona_peri_clk_set_rate(struct clk_hw *hw, unsigned long rate, if (parent_rate > (unsigned long)LONG_MAX) return -EINVAL; - if (rate == __clk_get_rate(hw->clk)) + if (rate == clk_hw_get_rate(hw)) return 0; if (!divider_exists(div)) @@ -1249,6 +1257,7 @@ bool __init kona_ccu_init(struct ccu_data *ccu) unsigned long flags; unsigned int which; struct clk **clks = ccu->clk_data.clks; + struct kona_clk *kona_clks = ccu->kona_clks; bool success = true; flags = ccu_lock(ccu); @@ -1259,7 +1268,7 @@ bool __init kona_ccu_init(struct ccu_data *ccu) if (!clks[which]) continue; - bcm_clk = to_kona_clk(__clk_get_hw(clks[which])); + bcm_clk = &kona_clks[which]; success &= __kona_clk_init(bcm_clk); } diff --git a/drivers/clk/berlin/berlin2-pll.c b/drivers/clk/berlin/berlin2-pll.c index f4b8d324b083..1c2294d3ba85 100644 --- a/drivers/clk/berlin/berlin2-pll.c +++ b/drivers/clk/berlin/berlin2-pll.c @@ -61,7 +61,7 @@ berlin2_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) fbdiv = (val >> map->fbdiv_shift) & FBDIV_MASK; rfdiv = (val >> map->rfdiv_shift) & RFDIV_MASK; if (rfdiv == 0) { - pr_warn("%s has zero rfdiv\n", __clk_get_name(hw->clk)); + pr_warn("%s has zero rfdiv\n", clk_hw_get_name(hw)); rfdiv = 1; } @@ -70,7 +70,7 @@ berlin2_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) vcodiv = map->vcodiv[vcodivsel]; if (vcodiv == 0) { pr_warn("%s has zero vcodiv (index %d)\n", - __clk_get_name(hw->clk), vcodivsel); + clk_hw_get_name(hw), vcodivsel); vcodiv = 1; } diff --git a/drivers/clk/clk-axi-clkgen.c b/drivers/clk/clk-axi-clkgen.c index e619285c6def..3bcd42fbb55e 100644 --- a/drivers/clk/clk-axi-clkgen.c +++ b/drivers/clk/clk-axi-clkgen.c @@ -10,7 +10,6 @@ #include <linux/platform_device.h> #include <linux/clk-provider.h> -#include <linux/clk.h> #include <linux/slab.h> #include <linux/io.h> #include <linux/of.h> diff --git a/drivers/clk/clk-bcm2835.c b/drivers/clk/clk-bcm2835.c index 6b950ca8b711..dd295e498309 100644 --- a/drivers/clk/clk-bcm2835.c +++ b/drivers/clk/clk-bcm2835.c @@ -32,11 +32,6 @@ void __init bcm2835_init_clocks(void) struct clk *clk; int ret; - clk = clk_register_fixed_rate(NULL, "sys_pclk", NULL, CLK_IS_ROOT, - 250000000); - if (IS_ERR(clk)) - pr_err("sys_pclk not registered\n"); - clk = clk_register_fixed_rate(NULL, "apb_pclk", NULL, CLK_IS_ROOT, 126000000); if (IS_ERR(clk)) diff --git a/drivers/clk/clk-cdce706.c b/drivers/clk/clk-cdce706.c index f01164fada5d..01877f64eff6 100644 --- a/drivers/clk/clk-cdce706.c +++ b/drivers/clk/clk-cdce706.c @@ -10,6 +10,7 @@ * published by the Free Software Foundation. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/i2c.h> @@ -309,7 +310,7 @@ static long cdce706_divider_round_rate(struct clk_hw *hw, unsigned long rate, if (!mul) div = CDCE706_DIVIDER_DIVIDER_MAX; - if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) { + if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) { unsigned long best_diff = rate; unsigned long best_div = 0; struct clk *gp_clk = cdce->clkin_clk[cdce->clkin[0].parent]; diff --git a/drivers/clk/clk-cdce925.c b/drivers/clk/clk-cdce925.c index 85fafb41e6ca..089bf88ffa8d 100644 --- a/drivers/clk/clk-cdce925.c +++ b/drivers/clk/clk-cdce925.c @@ -10,6 +10,7 @@ * Copyright (C) 2014, Topic Embedded Products * Licenced under GPL */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/module.h> diff --git a/drivers/clk/clk-clps711x.c b/drivers/clk/clk-clps711x.c index 715eec1a9902..ff4ef4f1df62 100644 --- a/drivers/clk/clk-clps711x.c +++ b/drivers/clk/clk-clps711x.c @@ -9,7 +9,6 @@ * (at your option) any later version. */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/io.h> diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c index 616f5aef3c26..4735de0660cc 100644 --- a/drivers/clk/clk-composite.c +++ b/drivers/clk/clk-composite.c @@ -55,78 +55,77 @@ static unsigned long clk_composite_recalc_rate(struct clk_hw *hw, return rate_ops->recalc_rate(rate_hw, parent_rate); } -static long clk_composite_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_p) +static int clk_composite_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_composite *composite = to_clk_composite(hw); const struct clk_ops *rate_ops = composite->rate_ops; const struct clk_ops *mux_ops = composite->mux_ops; struct clk_hw *rate_hw = composite->rate_hw; struct clk_hw *mux_hw = composite->mux_hw; - struct clk *parent; + struct clk_hw *parent; unsigned long parent_rate; long tmp_rate, best_rate = 0; unsigned long rate_diff; unsigned long best_rate_diff = ULONG_MAX; + long rate; int i; if (rate_hw && rate_ops && rate_ops->determine_rate) { __clk_hw_set_clk(rate_hw, hw); - return rate_ops->determine_rate(rate_hw, rate, min_rate, - max_rate, - best_parent_rate, - best_parent_p); + return rate_ops->determine_rate(rate_hw, req); } else if (rate_hw && rate_ops && rate_ops->round_rate && mux_hw && mux_ops && mux_ops->set_parent) { - *best_parent_p = NULL; + req->best_parent_hw = NULL; - if (__clk_get_flags(hw->clk) & CLK_SET_RATE_NO_REPARENT) { - parent = clk_get_parent(mux_hw->clk); - *best_parent_p = __clk_get_hw(parent); - *best_parent_rate = __clk_get_rate(parent); + if (clk_hw_get_flags(hw) & CLK_SET_RATE_NO_REPARENT) { + parent = clk_hw_get_parent(mux_hw); + req->best_parent_hw = parent; + req->best_parent_rate = clk_hw_get_rate(parent); - return rate_ops->round_rate(rate_hw, rate, - best_parent_rate); + rate = rate_ops->round_rate(rate_hw, req->rate, + &req->best_parent_rate); + if (rate < 0) + return rate; + + req->rate = rate; + return 0; } - for (i = 0; i < __clk_get_num_parents(mux_hw->clk); i++) { - parent = clk_get_parent_by_index(mux_hw->clk, i); + for (i = 0; i < clk_hw_get_num_parents(mux_hw); i++) { + parent = clk_hw_get_parent_by_index(mux_hw, i); if (!parent) continue; - parent_rate = __clk_get_rate(parent); + parent_rate = clk_hw_get_rate(parent); - tmp_rate = rate_ops->round_rate(rate_hw, rate, + tmp_rate = rate_ops->round_rate(rate_hw, req->rate, &parent_rate); if (tmp_rate < 0) continue; - rate_diff = abs(rate - tmp_rate); + rate_diff = abs(req->rate - tmp_rate); - if (!rate_diff || !*best_parent_p + if (!rate_diff || !req->best_parent_hw || best_rate_diff > rate_diff) { - *best_parent_p = __clk_get_hw(parent); - *best_parent_rate = parent_rate; + req->best_parent_hw = parent; + req->best_parent_rate = parent_rate; best_rate_diff = rate_diff; best_rate = tmp_rate; } if (!rate_diff) - return rate; + return 0; } - return best_rate; + req->rate = best_rate; + return 0; } else if (mux_hw && mux_ops && mux_ops->determine_rate) { __clk_hw_set_clk(mux_hw, hw); - return mux_ops->determine_rate(mux_hw, rate, min_rate, - max_rate, best_parent_rate, - best_parent_p); + return mux_ops->determine_rate(mux_hw, req); } else { pr_err("clk: clk_composite_determine_rate function called, but no mux or rate callback set!\n"); - return 0; + return -EINVAL; } } diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c index 706b5783c360..f24d0a19ae70 100644 --- a/drivers/clk/clk-divider.c +++ b/drivers/clk/clk-divider.c @@ -78,12 +78,14 @@ static unsigned int _get_table_div(const struct clk_div_table *table, } static unsigned int _get_div(const struct clk_div_table *table, - unsigned int val, unsigned long flags) + unsigned int val, unsigned long flags, u8 width) { if (flags & CLK_DIVIDER_ONE_BASED) return val; if (flags & CLK_DIVIDER_POWER_OF_TWO) return 1 << val; + if (flags & CLK_DIVIDER_MAX_AT_ZERO) + return val ? val : div_mask(width) + 1; if (table) return _get_table_div(table, val); return val + 1; @@ -101,12 +103,14 @@ static unsigned int _get_table_val(const struct clk_div_table *table, } static unsigned int _get_val(const struct clk_div_table *table, - unsigned int div, unsigned long flags) + unsigned int div, unsigned long flags, u8 width) { if (flags & CLK_DIVIDER_ONE_BASED) return div; if (flags & CLK_DIVIDER_POWER_OF_TWO) return __ffs(div); + if (flags & CLK_DIVIDER_MAX_AT_ZERO) + return (div == div_mask(width) + 1) ? 0 : div; if (table) return _get_table_val(table, div); return div - 1; @@ -117,13 +121,14 @@ unsigned long divider_recalc_rate(struct clk_hw *hw, unsigned long parent_rate, const struct clk_div_table *table, unsigned long flags) { + struct clk_divider *divider = to_clk_divider(hw); unsigned int div; - div = _get_div(table, val, flags); + div = _get_div(table, val, flags, divider->width); if (!div) { WARN(!(flags & CLK_DIVIDER_ALLOW_ZERO), "%s: Zero divisor and CLK_DIVIDER_ALLOW_ZERO not set\n", - __clk_get_name(hw->clk)); + clk_hw_get_name(hw)); return parent_rate; } @@ -285,7 +290,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, maxdiv = _get_maxdiv(table, width, flags); - if (!(__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT)) { + if (!(clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT)) { parent_rate = *best_parent_rate; bestdiv = _div_round(table, parent_rate, rate, flags); bestdiv = bestdiv == 0 ? 1 : bestdiv; @@ -311,7 +316,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, *best_parent_rate = parent_rate_saved; return i; } - parent_rate = __clk_round_rate(__clk_get_parent(hw->clk), + parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), rate * i); now = DIV_ROUND_UP(parent_rate, i); if (_is_best_div(rate, now, best, flags)) { @@ -323,7 +328,7 @@ static int clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, if (!bestdiv) { bestdiv = _get_maxdiv(table, width, flags); - *best_parent_rate = __clk_round_rate(__clk_get_parent(hw->clk), 1); + *best_parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), 1); } return bestdiv; @@ -351,7 +356,8 @@ static long clk_divider_round_rate(struct clk_hw *hw, unsigned long rate, if (divider->flags & CLK_DIVIDER_READ_ONLY) { bestdiv = readl(divider->reg) >> divider->shift; bestdiv &= div_mask(divider->width); - bestdiv = _get_div(divider->table, bestdiv, divider->flags); + bestdiv = _get_div(divider->table, bestdiv, divider->flags, + divider->width); return DIV_ROUND_UP(*prate, bestdiv); } @@ -370,7 +376,7 @@ int divider_get_val(unsigned long rate, unsigned long parent_rate, if (!_is_valid_div(table, div, flags)) return -EINVAL; - value = _get_val(table, div, flags); + value = _get_val(table, div, flags, width); return min_t(unsigned int, value, div_mask(width)); } @@ -389,6 +395,8 @@ static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate, if (divider->lock) spin_lock_irqsave(divider->lock, flags); + else + __acquire(divider->lock); if (divider->flags & CLK_DIVIDER_HIWORD_MASK) { val = div_mask(divider->width) << (divider->shift + 16); @@ -401,6 +409,8 @@ static int clk_divider_set_rate(struct clk_hw *hw, unsigned long rate, if (divider->lock) spin_unlock_irqrestore(divider->lock, flags); + else + __release(divider->lock); return 0; } diff --git a/drivers/clk/clk-efm32gg.c b/drivers/clk/clk-efm32gg.c index 73a8d0ff530c..bac4553f04b8 100644 --- a/drivers/clk/clk-efm32gg.c +++ b/drivers/clk/clk-efm32gg.c @@ -6,7 +6,6 @@ * the terms of the GNU General Public License version 2 as published by the * Free Software Foundation. */ -#include <linux/clk.h> #include <linux/io.h> #include <linux/clk-provider.h> #include <linux/of.h> diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c index fccabe497f6e..83de57aeceea 100644 --- a/drivers/clk/clk-fixed-factor.c +++ b/drivers/clk/clk-fixed-factor.c @@ -41,12 +41,11 @@ static long clk_factor_round_rate(struct clk_hw *hw, unsigned long rate, { struct clk_fixed_factor *fix = to_clk_fixed_factor(hw); - if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) { + if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) { unsigned long best_parent; best_parent = (rate / fix->mult) * fix->div; - *prate = __clk_round_rate(__clk_get_parent(hw->clk), - best_parent); + *prate = clk_hw_round_rate(clk_hw_get_parent(hw), best_parent); } return (*prate / fix->div) * fix->mult; diff --git a/drivers/clk/clk-fractional-divider.c b/drivers/clk/clk-fractional-divider.c index 140eb5844dc4..e85f856b8592 100644 --- a/drivers/clk/clk-fractional-divider.c +++ b/drivers/clk/clk-fractional-divider.c @@ -27,11 +27,15 @@ static unsigned long clk_fd_recalc_rate(struct clk_hw *hw, if (fd->lock) spin_lock_irqsave(fd->lock, flags); + else + __acquire(fd->lock); val = clk_readl(fd->reg); if (fd->lock) spin_unlock_irqrestore(fd->lock, flags); + else + __release(fd->lock); m = (val & fd->mmask) >> fd->mshift; n = (val & fd->nmask) >> fd->nshift; @@ -80,6 +84,8 @@ static int clk_fd_set_rate(struct clk_hw *hw, unsigned long rate, if (fd->lock) spin_lock_irqsave(fd->lock, flags); + else + __acquire(fd->lock); val = clk_readl(fd->reg); val &= ~(fd->mmask | fd->nmask); @@ -88,6 +94,8 @@ static int clk_fd_set_rate(struct clk_hw *hw, unsigned long rate, if (fd->lock) spin_unlock_irqrestore(fd->lock, flags); + else + __release(fd->lock); return 0; } diff --git a/drivers/clk/clk-gate.c b/drivers/clk/clk-gate.c index 551dd0672794..de0b322f5f58 100644 --- a/drivers/clk/clk-gate.c +++ b/drivers/clk/clk-gate.c @@ -52,6 +52,8 @@ static void clk_gate_endisable(struct clk_hw *hw, int enable) if (gate->lock) spin_lock_irqsave(gate->lock, flags); + else + __acquire(gate->lock); if (gate->flags & CLK_GATE_HIWORD_MASK) { reg = BIT(gate->bit_idx + 16); @@ -70,6 +72,8 @@ static void clk_gate_endisable(struct clk_hw *hw, int enable) if (gate->lock) spin_unlock_irqrestore(gate->lock, flags); + else + __release(gate->lock); } static int clk_gate_enable(struct clk_hw *hw) diff --git a/drivers/clk/clk-gpio-gate.c b/drivers/clk/clk-gpio-gate.c deleted file mode 100644 index f564e624fb93..000000000000 --- a/drivers/clk/clk-gpio-gate.c +++ /dev/null @@ -1,207 +0,0 @@ -/* - * Copyright (C) 2013 - 2014 Texas Instruments Incorporated - http://www.ti.com - * Author: Jyri Sarha <jsarha@ti.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * Gpio gated clock implementation - */ - -#include <linux/clk-provider.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/gpio.h> -#include <linux/gpio/consumer.h> -#include <linux/of_gpio.h> -#include <linux/err.h> -#include <linux/device.h> - -/** - * DOC: basic gpio gated clock which can be enabled and disabled - * with gpio output - * Traits of this clock: - * prepare - clk_(un)prepare only ensures parent is (un)prepared - * enable - clk_enable and clk_disable are functional & control gpio - * rate - inherits rate from parent. No clk_set_rate support - * parent - fixed parent. No clk_set_parent support - */ - -#define to_clk_gpio(_hw) container_of(_hw, struct clk_gpio, hw) - -static int clk_gpio_gate_enable(struct clk_hw *hw) -{ - struct clk_gpio *clk = to_clk_gpio(hw); - - gpiod_set_value(clk->gpiod, 1); - - return 0; -} - -static void clk_gpio_gate_disable(struct clk_hw *hw) -{ - struct clk_gpio *clk = to_clk_gpio(hw); - - gpiod_set_value(clk->gpiod, 0); -} - -static int clk_gpio_gate_is_enabled(struct clk_hw *hw) -{ - struct clk_gpio *clk = to_clk_gpio(hw); - - return gpiod_get_value(clk->gpiod); -} - -const struct clk_ops clk_gpio_gate_ops = { - .enable = clk_gpio_gate_enable, - .disable = clk_gpio_gate_disable, - .is_enabled = clk_gpio_gate_is_enabled, -}; -EXPORT_SYMBOL_GPL(clk_gpio_gate_ops); - -/** - * clk_register_gpio - register a gpip clock with the clock framework - * @dev: device that is registering this clock - * @name: name of this clock - * @parent_name: name of this clock's parent - * @gpio: gpio number to gate this clock - * @active_low: true if gpio should be set to 0 to enable clock - * @flags: clock flags - */ -struct clk *clk_register_gpio_gate(struct device *dev, const char *name, - const char *parent_name, unsigned gpio, bool active_low, - unsigned long flags) -{ - struct clk_gpio *clk_gpio = NULL; - struct clk *clk = ERR_PTR(-EINVAL); - struct clk_init_data init = { NULL }; - unsigned long gpio_flags; - int err; - - if (active_low) - gpio_flags = GPIOF_ACTIVE_LOW | GPIOF_OUT_INIT_HIGH; - else - gpio_flags = GPIOF_OUT_INIT_LOW; - - if (dev) - err = devm_gpio_request_one(dev, gpio, gpio_flags, name); - else - err = gpio_request_one(gpio, gpio_flags, name); - - if (err) { - pr_err("%s: %s: Error requesting clock control gpio %u\n", - __func__, name, gpio); - return ERR_PTR(err); - } - - if (dev) - clk_gpio = devm_kzalloc(dev, sizeof(struct clk_gpio), - GFP_KERNEL); - else - clk_gpio = kzalloc(sizeof(struct clk_gpio), GFP_KERNEL); - - if (!clk_gpio) { - clk = ERR_PTR(-ENOMEM); - goto clk_register_gpio_gate_err; - } - - init.name = name; - init.ops = &clk_gpio_gate_ops; - init.flags = flags | CLK_IS_BASIC; - init.parent_names = (parent_name ? &parent_name : NULL); - init.num_parents = (parent_name ? 1 : 0); - - clk_gpio->gpiod = gpio_to_desc(gpio); - clk_gpio->hw.init = &init; - - clk = clk_register(dev, &clk_gpio->hw); - - if (!IS_ERR(clk)) - return clk; - - if (!dev) - kfree(clk_gpio); - -clk_register_gpio_gate_err: - if (!dev) - gpio_free(gpio); - - return clk; -} -EXPORT_SYMBOL_GPL(clk_register_gpio_gate); - -#ifdef CONFIG_OF -/** - * The clk_register_gpio_gate has to be delayed, because the EPROBE_DEFER - * can not be handled properly at of_clk_init() call time. - */ - -struct clk_gpio_gate_delayed_register_data { - struct device_node *node; - struct mutex lock; - struct clk *clk; -}; - -static struct clk *of_clk_gpio_gate_delayed_register_get( - struct of_phandle_args *clkspec, - void *_data) -{ - struct clk_gpio_gate_delayed_register_data *data = _data; - struct clk *clk; - const char *clk_name = data->node->name; - const char *parent_name; - int gpio; - enum of_gpio_flags of_flags; - - mutex_lock(&data->lock); - - if (data->clk) { - mutex_unlock(&data->lock); - return data->clk; - } - - gpio = of_get_named_gpio_flags(data->node, "enable-gpios", 0, - &of_flags); - if (gpio < 0) { - mutex_unlock(&data->lock); - if (gpio != -EPROBE_DEFER) - pr_err("%s: %s: Can't get 'enable-gpios' DT property\n", - __func__, clk_name); - return ERR_PTR(gpio); - } - - parent_name = of_clk_get_parent_name(data->node, 0); - - clk = clk_register_gpio_gate(NULL, clk_name, parent_name, gpio, - of_flags & OF_GPIO_ACTIVE_LOW, 0); - if (IS_ERR(clk)) { - mutex_unlock(&data->lock); - return clk; - } - - data->clk = clk; - mutex_unlock(&data->lock); - - return clk; -} - -/** - * of_gpio_gate_clk_setup() - Setup function for gpio controlled clock - */ -static void __init of_gpio_gate_clk_setup(struct device_node *node) -{ - struct clk_gpio_gate_delayed_register_data *data; - - data = kzalloc(sizeof(struct clk_gpio_gate_delayed_register_data), - GFP_KERNEL); - if (!data) - return; - - data->node = node; - mutex_init(&data->lock); - - of_clk_add_provider(node, of_clk_gpio_gate_delayed_register_get, data); -} -CLK_OF_DECLARE(gpio_gate_clk, "gpio-gate-clock", of_gpio_gate_clk_setup); -#endif diff --git a/drivers/clk/clk-gpio.c b/drivers/clk/clk-gpio.c new file mode 100644 index 000000000000..10819e248414 --- /dev/null +++ b/drivers/clk/clk-gpio.c @@ -0,0 +1,325 @@ +/* + * Copyright (C) 2013 - 2014 Texas Instruments Incorporated - http://www.ti.com + * + * Authors: + * Jyri Sarha <jsarha@ti.com> + * Sergej Sawazki <ce3a@gmx.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Gpio controlled clock implementation + */ + +#include <linux/clk-provider.h> +#include <linux/export.h> +#include <linux/slab.h> +#include <linux/gpio.h> +#include <linux/gpio/consumer.h> +#include <linux/of_gpio.h> +#include <linux/err.h> +#include <linux/device.h> + +/** + * DOC: basic gpio gated clock which can be enabled and disabled + * with gpio output + * Traits of this clock: + * prepare - clk_(un)prepare only ensures parent is (un)prepared + * enable - clk_enable and clk_disable are functional & control gpio + * rate - inherits rate from parent. No clk_set_rate support + * parent - fixed parent. No clk_set_parent support + */ + +#define to_clk_gpio(_hw) container_of(_hw, struct clk_gpio, hw) + +static int clk_gpio_gate_enable(struct clk_hw *hw) +{ + struct clk_gpio *clk = to_clk_gpio(hw); + + gpiod_set_value(clk->gpiod, 1); + + return 0; +} + +static void clk_gpio_gate_disable(struct clk_hw *hw) +{ + struct clk_gpio *clk = to_clk_gpio(hw); + + gpiod_set_value(clk->gpiod, 0); +} + +static int clk_gpio_gate_is_enabled(struct clk_hw *hw) +{ + struct clk_gpio *clk = to_clk_gpio(hw); + + return gpiod_get_value(clk->gpiod); +} + +const struct clk_ops clk_gpio_gate_ops = { + .enable = clk_gpio_gate_enable, + .disable = clk_gpio_gate_disable, + .is_enabled = clk_gpio_gate_is_enabled, +}; +EXPORT_SYMBOL_GPL(clk_gpio_gate_ops); + +/** + * DOC: basic clock multiplexer which can be controlled with a gpio output + * Traits of this clock: + * prepare - clk_prepare only ensures that parents are prepared + * rate - rate is only affected by parent switching. No clk_set_rate support + * parent - parent is adjustable through clk_set_parent + */ + +static u8 clk_gpio_mux_get_parent(struct clk_hw *hw) +{ + struct clk_gpio *clk = to_clk_gpio(hw); + + return gpiod_get_value(clk->gpiod); +} + +static int clk_gpio_mux_set_parent(struct clk_hw *hw, u8 index) +{ + struct clk_gpio *clk = to_clk_gpio(hw); + + gpiod_set_value(clk->gpiod, index); + + return 0; +} + +const struct clk_ops clk_gpio_mux_ops = { + .get_parent = clk_gpio_mux_get_parent, + .set_parent = clk_gpio_mux_set_parent, + .determine_rate = __clk_mux_determine_rate, +}; +EXPORT_SYMBOL_GPL(clk_gpio_mux_ops); + +static struct clk *clk_register_gpio(struct device *dev, const char *name, + const char * const *parent_names, u8 num_parents, unsigned gpio, + bool active_low, unsigned long flags, + const struct clk_ops *clk_gpio_ops) +{ + struct clk_gpio *clk_gpio; + struct clk *clk; + struct clk_init_data init = {}; + unsigned long gpio_flags; + int err; + + if (dev) + clk_gpio = devm_kzalloc(dev, sizeof(*clk_gpio), GFP_KERNEL); + else + clk_gpio = kzalloc(sizeof(*clk_gpio), GFP_KERNEL); + + if (!clk_gpio) + return ERR_PTR(-ENOMEM); + + if (active_low) + gpio_flags = GPIOF_ACTIVE_LOW | GPIOF_OUT_INIT_HIGH; + else + gpio_flags = GPIOF_OUT_INIT_LOW; + + if (dev) + err = devm_gpio_request_one(dev, gpio, gpio_flags, name); + else + err = gpio_request_one(gpio, gpio_flags, name); + if (err) { + if (err != -EPROBE_DEFER) + pr_err("%s: %s: Error requesting clock control gpio %u\n", + __func__, name, gpio); + if (!dev) + kfree(clk_gpio); + + return ERR_PTR(err); + } + + init.name = name; + init.ops = clk_gpio_ops; + init.flags = flags | CLK_IS_BASIC; + init.parent_names = parent_names; + init.num_parents = num_parents; + + clk_gpio->gpiod = gpio_to_desc(gpio); + clk_gpio->hw.init = &init; + + if (dev) + clk = devm_clk_register(dev, &clk_gpio->hw); + else + clk = clk_register(NULL, &clk_gpio->hw); + + if (!IS_ERR(clk)) + return clk; + + if (!dev) { + gpiod_put(clk_gpio->gpiod); + kfree(clk_gpio); + } + + return clk; +} + +/** + * clk_register_gpio_gate - register a gpio clock gate with the clock framework + * @dev: device that is registering this clock + * @name: name of this clock + * @parent_name: name of this clock's parent + * @gpio: gpio number to gate this clock + * @active_low: true if gpio should be set to 0 to enable clock + * @flags: clock flags + */ +struct clk *clk_register_gpio_gate(struct device *dev, const char *name, + const char *parent_name, unsigned gpio, bool active_low, + unsigned long flags) +{ + return clk_register_gpio(dev, name, + (parent_name ? &parent_name : NULL), + (parent_name ? 1 : 0), gpio, active_low, flags, + &clk_gpio_gate_ops); +} +EXPORT_SYMBOL_GPL(clk_register_gpio_gate); + +/** + * clk_register_gpio_mux - register a gpio clock mux with the clock framework + * @dev: device that is registering this clock + * @name: name of this clock + * @parent_names: names of this clock's parents + * @num_parents: number of parents listed in @parent_names + * @gpio: gpio number to gate this clock + * @active_low: true if gpio should be set to 0 to enable clock + * @flags: clock flags + */ +struct clk *clk_register_gpio_mux(struct device *dev, const char *name, + const char * const *parent_names, u8 num_parents, unsigned gpio, + bool active_low, unsigned long flags) +{ + if (num_parents != 2) { + pr_err("mux-clock %s must have 2 parents\n", name); + return ERR_PTR(-EINVAL); + } + + return clk_register_gpio(dev, name, parent_names, num_parents, + gpio, active_low, flags, &clk_gpio_mux_ops); +} +EXPORT_SYMBOL_GPL(clk_register_gpio_mux); + +#ifdef CONFIG_OF +/** + * clk_register_get() has to be delayed, because -EPROBE_DEFER + * can not be handled properly at of_clk_init() call time. + */ + +struct clk_gpio_delayed_register_data { + const char *gpio_name; + struct device_node *node; + struct mutex lock; + struct clk *clk; + struct clk *(*clk_register_get)(const char *name, + const char * const *parent_names, u8 num_parents, + unsigned gpio, bool active_low); +}; + +static struct clk *of_clk_gpio_delayed_register_get( + struct of_phandle_args *clkspec, void *_data) +{ + struct clk_gpio_delayed_register_data *data = _data; + struct clk *clk; + const char **parent_names; + int i, num_parents; + int gpio; + enum of_gpio_flags of_flags; + + mutex_lock(&data->lock); + + if (data->clk) { + mutex_unlock(&data->lock); + return data->clk; + } + + gpio = of_get_named_gpio_flags(data->node, data->gpio_name, 0, + &of_flags); + if (gpio < 0) { + mutex_unlock(&data->lock); + if (gpio == -EPROBE_DEFER) + pr_debug("%s: %s: GPIOs not yet available, retry later\n", + data->node->name, __func__); + else + pr_err("%s: %s: Can't get '%s' DT property\n", + data->node->name, __func__, + data->gpio_name); + return ERR_PTR(gpio); + } + + num_parents = of_clk_get_parent_count(data->node); + + parent_names = kcalloc(num_parents, sizeof(char *), GFP_KERNEL); + if (!parent_names) { + clk = ERR_PTR(-ENOMEM); + goto out; + } + + for (i = 0; i < num_parents; i++) + parent_names[i] = of_clk_get_parent_name(data->node, i); + + clk = data->clk_register_get(data->node->name, parent_names, + num_parents, gpio, of_flags & OF_GPIO_ACTIVE_LOW); + if (IS_ERR(clk)) + goto out; + + data->clk = clk; +out: + mutex_unlock(&data->lock); + kfree(parent_names); + + return clk; +} + +static struct clk *of_clk_gpio_gate_delayed_register_get(const char *name, + const char * const *parent_names, u8 num_parents, + unsigned gpio, bool active_low) +{ + return clk_register_gpio_gate(NULL, name, parent_names[0], + gpio, active_low, 0); +} + +static struct clk *of_clk_gpio_mux_delayed_register_get(const char *name, + const char * const *parent_names, u8 num_parents, unsigned gpio, + bool active_low) +{ + return clk_register_gpio_mux(NULL, name, parent_names, num_parents, + gpio, active_low, 0); +} + +static void __init of_gpio_clk_setup(struct device_node *node, + const char *gpio_name, + struct clk *(*clk_register_get)(const char *name, + const char * const *parent_names, + u8 num_parents, + unsigned gpio, bool active_low)) +{ + struct clk_gpio_delayed_register_data *data; + + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return; + + data->node = node; + data->gpio_name = gpio_name; + data->clk_register_get = clk_register_get; + mutex_init(&data->lock); + + of_clk_add_provider(node, of_clk_gpio_delayed_register_get, data); +} + +static void __init of_gpio_gate_clk_setup(struct device_node *node) +{ + of_gpio_clk_setup(node, "enable-gpios", + of_clk_gpio_gate_delayed_register_get); +} +CLK_OF_DECLARE(gpio_gate_clk, "gpio-gate-clock", of_gpio_gate_clk_setup); + +void __init of_gpio_mux_clk_setup(struct device_node *node) +{ + of_gpio_clk_setup(node, "select-gpios", + of_clk_gpio_mux_delayed_register_get); +} +CLK_OF_DECLARE(gpio_mux_clk, "gpio-mux-clock", of_gpio_mux_clk_setup); +#endif diff --git a/drivers/clk/clk-highbank.c b/drivers/clk/clk-highbank.c index 2e7e9d9798cb..be3a21abb185 100644 --- a/drivers/clk/clk-highbank.c +++ b/drivers/clk/clk-highbank.c @@ -17,6 +17,7 @@ #include <linux/kernel.h> #include <linux/slab.h> #include <linux/err.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/of.h> diff --git a/drivers/clk/clk-moxart.c b/drivers/clk/clk-moxart.c index 5181b89c3cb2..f37f719643ec 100644 --- a/drivers/clk/clk-moxart.c +++ b/drivers/clk/clk-moxart.c @@ -10,6 +10,7 @@ * warranty of any kind, whether express or implied. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/of_address.h> diff --git a/drivers/clk/clk-mux.c b/drivers/clk/clk-mux.c index 6066a01b20ea..7129c86a79db 100644 --- a/drivers/clk/clk-mux.c +++ b/drivers/clk/clk-mux.c @@ -10,7 +10,6 @@ * Simple multiplexer clock implementation */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/module.h> #include <linux/slab.h> @@ -32,7 +31,7 @@ static u8 clk_mux_get_parent(struct clk_hw *hw) { struct clk_mux *mux = to_clk_mux(hw); - int num_parents = __clk_get_num_parents(hw->clk); + int num_parents = clk_hw_get_num_parents(hw); u32 val; /* @@ -85,6 +84,8 @@ static int clk_mux_set_parent(struct clk_hw *hw, u8 index) if (mux->lock) spin_lock_irqsave(mux->lock, flags); + else + __acquire(mux->lock); if (mux->flags & CLK_MUX_HIWORD_MASK) { val = mux->mask << (mux->shift + 16); @@ -97,6 +98,8 @@ static int clk_mux_set_parent(struct clk_hw *hw, u8 index) if (mux->lock) spin_unlock_irqrestore(mux->lock, flags); + else + __release(mux->lock); return 0; } diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c index c9487179f25f..e4d8a991c58f 100644 --- a/drivers/clk/clk-nomadik.c +++ b/drivers/clk/clk-nomadik.c @@ -8,8 +8,7 @@ #define pr_fmt(fmt) "Nomadik SRC clocks: " fmt #include <linux/bitops.h> -#include <linux/clk.h> -#include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/err.h> #include <linux/io.h> #include <linux/clk-provider.h> diff --git a/drivers/clk/clk-palmas.c b/drivers/clk/clk-palmas.c index 45a535ab48aa..8e3039f0c3f9 100644 --- a/drivers/clk/clk-palmas.c +++ b/drivers/clk/clk-palmas.c @@ -18,7 +18,6 @@ */ #include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/mfd/palmas.h> #include <linux/module.h> diff --git a/drivers/clk/clk-rk808.c b/drivers/clk/clk-rk808.c index 83902b9cd49e..0fee2f4ca258 100644 --- a/drivers/clk/clk-rk808.c +++ b/drivers/clk/clk-rk808.c @@ -15,7 +15,6 @@ * more details. */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/module.h> #include <linux/slab.h> diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c index 9b13a303d3f8..d266299dfdb1 100644 --- a/drivers/clk/clk-s2mps11.c +++ b/drivers/clk/clk-s2mps11.c @@ -58,21 +58,17 @@ static struct s2mps11_clk *to_s2mps11_clk(struct clk_hw *hw) static int s2mps11_clk_prepare(struct clk_hw *hw) { struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw); - int ret; - ret = regmap_update_bits(s2mps11->iodev->regmap_pmic, + return regmap_update_bits(s2mps11->iodev->regmap_pmic, s2mps11->reg, s2mps11->mask, s2mps11->mask); - - return ret; } static void s2mps11_clk_unprepare(struct clk_hw *hw) { struct s2mps11_clk *s2mps11 = to_s2mps11_clk(hw); - int ret; - ret = regmap_update_bits(s2mps11->iodev->regmap_pmic, s2mps11->reg, + regmap_update_bits(s2mps11->iodev->regmap_pmic, s2mps11->reg, s2mps11->mask, ~s2mps11->mask); } @@ -186,15 +182,15 @@ static int s2mps11_clk_probe(struct platform_device *pdev) struct clk_init_data *clks_init; int i, ret = 0; - s2mps11_clks = devm_kzalloc(&pdev->dev, sizeof(*s2mps11_clk) * - S2MPS11_CLKS_NUM, GFP_KERNEL); + s2mps11_clks = devm_kcalloc(&pdev->dev, S2MPS11_CLKS_NUM, + sizeof(*s2mps11_clk), GFP_KERNEL); if (!s2mps11_clks) return -ENOMEM; s2mps11_clk = s2mps11_clks; - clk_table = devm_kzalloc(&pdev->dev, sizeof(struct clk *) * - S2MPS11_CLKS_NUM, GFP_KERNEL); + clk_table = devm_kcalloc(&pdev->dev, S2MPS11_CLKS_NUM, + sizeof(struct clk *), GFP_KERNEL); if (!clk_table) return -ENOMEM; @@ -246,7 +242,7 @@ static int s2mps11_clk_probe(struct platform_device *pdev) s2mps11_name(s2mps11_clk), NULL); if (!s2mps11_clk->lookup) { ret = -ENOMEM; - goto err_lup; + goto err_reg; } } @@ -265,16 +261,10 @@ static int s2mps11_clk_probe(struct platform_device *pdev) platform_set_drvdata(pdev, s2mps11_clks); return ret; -err_lup: - devm_clk_unregister(&pdev->dev, s2mps11_clk->clk); + err_reg: - while (s2mps11_clk > s2mps11_clks) { - if (s2mps11_clk->lookup) { - clkdev_drop(s2mps11_clk->lookup); - devm_clk_unregister(&pdev->dev, s2mps11_clk->clk); - } - s2mps11_clk--; - } + while (--i >= 0) + clkdev_drop(s2mps11_clks[i].lookup); return ret; } @@ -322,7 +312,7 @@ static int __init s2mps11_clk_init(void) } subsys_initcall(s2mps11_clk_init); -static void __init s2mps11_clk_cleanup(void) +static void __exit s2mps11_clk_cleanup(void) { platform_driver_unregister(&s2mps11_clk_driver); } diff --git a/drivers/clk/clk-si5351.c b/drivers/clk/clk-si5351.c index e39e1e680b3c..5596c0aac22f 100644 --- a/drivers/clk/clk-si5351.c +++ b/drivers/clk/clk-si5351.c @@ -18,7 +18,7 @@ #include <linux/module.h> #include <linux/kernel.h> -#include <linux/clkdev.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/err.h> @@ -439,7 +439,7 @@ static unsigned long si5351_pll_recalc_rate(struct clk_hw *hw, dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: p1 = %lu, p2 = %lu, p3 = %lu, parent_rate = %lu, rate = %lu\n", - __func__, __clk_get_name(hwdata->hw.clk), + __func__, clk_hw_get_name(hw), hwdata->params.p1, hwdata->params.p2, hwdata->params.p3, parent_rate, (unsigned long)rate); @@ -497,7 +497,7 @@ static long si5351_pll_round_rate(struct clk_hw *hw, unsigned long rate, dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: a = %lu, b = %lu, c = %lu, parent_rate = %lu, rate = %lu\n", - __func__, __clk_get_name(hwdata->hw.clk), a, b, c, + __func__, clk_hw_get_name(hw), a, b, c, *parent_rate, rate); return rate; @@ -521,7 +521,7 @@ static int si5351_pll_set_rate(struct clk_hw *hw, unsigned long rate, dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: p1 = %lu, p2 = %lu, p3 = %lu, parent_rate = %lu, rate = %lu\n", - __func__, __clk_get_name(hwdata->hw.clk), + __func__, clk_hw_get_name(hw), hwdata->params.p1, hwdata->params.p2, hwdata->params.p3, parent_rate, rate); @@ -632,7 +632,7 @@ static unsigned long si5351_msynth_recalc_rate(struct clk_hw *hw, dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: p1 = %lu, p2 = %lu, p3 = %lu, m = %lu, parent_rate = %lu, rate = %lu\n", - __func__, __clk_get_name(hwdata->hw.clk), + __func__, clk_hw_get_name(hw), hwdata->params.p1, hwdata->params.p2, hwdata->params.p3, m, parent_rate, (unsigned long)rate); @@ -663,7 +663,7 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, divby4 = 1; /* multisync can set pll */ - if (__clk_get_flags(hwdata->hw.clk) & CLK_SET_RATE_PARENT) { + if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) { /* * find largest integer divider for max * vco frequency and given target rate @@ -745,7 +745,7 @@ static long si5351_msynth_round_rate(struct clk_hw *hw, unsigned long rate, dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: a = %lu, b = %lu, c = %lu, divby4 = %d, parent_rate = %lu, rate = %lu\n", - __func__, __clk_get_name(hwdata->hw.clk), a, b, c, divby4, + __func__, clk_hw_get_name(hw), a, b, c, divby4, *parent_rate, rate); return rate; @@ -777,7 +777,7 @@ static int si5351_msynth_set_rate(struct clk_hw *hw, unsigned long rate, dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: p1 = %lu, p2 = %lu, p3 = %lu, divby4 = %d, parent_rate = %lu, rate = %lu\n", - __func__, __clk_get_name(hwdata->hw.clk), + __func__, clk_hw_get_name(hw), hwdata->params.p1, hwdata->params.p2, hwdata->params.p3, divby4, parent_rate, rate); @@ -1013,7 +1013,7 @@ static long si5351_clkout_round_rate(struct clk_hw *hw, unsigned long rate, rate = SI5351_CLKOUT_MIN_FREQ; /* request frequency if multisync master */ - if (__clk_get_flags(hwdata->hw.clk) & CLK_SET_RATE_PARENT) { + if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) { /* use r divider for frequencies below 1MHz */ rdiv = SI5351_OUTPUT_CLK_DIV_1; while (rate < SI5351_MULTISYNTH_MIN_FREQ && @@ -1042,7 +1042,7 @@ static long si5351_clkout_round_rate(struct clk_hw *hw, unsigned long rate, dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: rdiv = %u, parent_rate = %lu, rate = %lu\n", - __func__, __clk_get_name(hwdata->hw.clk), (1 << rdiv), + __func__, clk_hw_get_name(hw), (1 << rdiv), *parent_rate, rate); return rate; @@ -1093,7 +1093,7 @@ static int si5351_clkout_set_rate(struct clk_hw *hw, unsigned long rate, dev_dbg(&hwdata->drvdata->client->dev, "%s - %s: rdiv = %u, parent_rate = %lu, rate = %lu\n", - __func__, __clk_get_name(hwdata->hw.clk), (1 << rdiv), + __func__, clk_hw_get_name(hw), (1 << rdiv), parent_rate, rate); return 0; diff --git a/drivers/clk/clk-si570.c b/drivers/clk/clk-si570.c index 20a5aec98b1a..cf478aa9fa5d 100644 --- a/drivers/clk/clk-si570.c +++ b/drivers/clk/clk-si570.c @@ -19,6 +19,7 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/module.h> diff --git a/drivers/clk/clk-stm32f4.c b/drivers/clk/clk-stm32f4.c index 3f6f7ad39490..fd89e771107e 100644 --- a/drivers/clk/clk-stm32f4.c +++ b/drivers/clk/clk-stm32f4.c @@ -175,11 +175,10 @@ static long clk_apb_mul_round_rate(struct clk_hw *hw, unsigned long rate, if (readl(base + STM32F4_RCC_CFGR) & BIT(am->bit_idx)) mult = 2; - if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) { + if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) { unsigned long best_parent = rate / mult; - *prate = - __clk_round_rate(__clk_get_parent(hw->clk), best_parent); + *prate = clk_hw_round_rate(clk_hw_get_parent(hw), best_parent); } return *prate * mult; diff --git a/drivers/clk/clk-twl6040.c b/drivers/clk/clk-twl6040.c index 4a755135bcd3..8e5ed649a098 100644 --- a/drivers/clk/clk-twl6040.c +++ b/drivers/clk/clk-twl6040.c @@ -20,7 +20,6 @@ * */ -#include <linux/clk.h> #include <linux/module.h> #include <linux/slab.h> #include <linux/platform_device.h> @@ -91,7 +90,7 @@ static int twl6040_clk_probe(struct platform_device *pdev) clkdata->twl6040 = twl6040; clkdata->mcpdm_fclk.init = &wm831x_clkout_init; - clkdata->clk = clk_register(&pdev->dev, &clkdata->mcpdm_fclk); + clkdata->clk = devm_clk_register(&pdev->dev, &clkdata->mcpdm_fclk); if (IS_ERR(clkdata->clk)) return PTR_ERR(clkdata->clk); @@ -100,21 +99,11 @@ static int twl6040_clk_probe(struct platform_device *pdev) return 0; } -static int twl6040_clk_remove(struct platform_device *pdev) -{ - struct twl6040_clk *clkdata = platform_get_drvdata(pdev); - - clk_unregister(clkdata->clk); - - return 0; -} - static struct platform_driver twl6040_clk_driver = { .driver = { .name = "twl6040-clk", }, .probe = twl6040_clk_probe, - .remove = twl6040_clk_remove, }; module_platform_driver(twl6040_clk_driver); diff --git a/drivers/clk/clk-u300.c b/drivers/clk/clk-u300.c index 18bf5e576b93..95d1742dac30 100644 --- a/drivers/clk/clk-u300.c +++ b/drivers/clk/clk-u300.c @@ -5,8 +5,8 @@ * Author: Linus Walleij <linus.walleij@stericsson.com> * Author: Jonas Aaberg <jonas.aberg@stericsson.com> */ -#include <linux/clk.h> #include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/err.h> #include <linux/io.h> #include <linux/clk-provider.h> diff --git a/drivers/clk/clk-wm831x.c b/drivers/clk/clk-wm831x.c index ef67719f4e52..43f9d15255f4 100644 --- a/drivers/clk/clk-wm831x.c +++ b/drivers/clk/clk-wm831x.c @@ -12,7 +12,6 @@ * */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/module.h> diff --git a/drivers/clk/clk-xgene.c b/drivers/clk/clk-xgene.c index f26b3ac36b27..96a6190acac2 100644 --- a/drivers/clk/clk-xgene.c +++ b/drivers/clk/clk-xgene.c @@ -60,7 +60,6 @@ enum xgene_pll_type { struct xgene_clk_pll { struct clk_hw hw; - const char *name; void __iomem *reg; spinlock_t *lock; u32 pll_offset; @@ -75,7 +74,7 @@ static int xgene_clk_pll_is_enabled(struct clk_hw *hw) u32 data; data = xgene_clk_read(pllclk->reg + pllclk->pll_offset); - pr_debug("%s pll %s\n", pllclk->name, + pr_debug("%s pll %s\n", clk_hw_get_name(hw), data & REGSPEC_RESET_F1_MASK ? "disabled" : "enabled"); return data & REGSPEC_RESET_F1_MASK ? 0 : 1; @@ -113,7 +112,7 @@ static unsigned long xgene_clk_pll_recalc_rate(struct clk_hw *hw, fref = parent_rate / nref; fvco = fref * nfb; } - pr_debug("%s pll recalc rate %ld parent %ld\n", pllclk->name, + pr_debug("%s pll recalc rate %ld parent %ld\n", clk_hw_get_name(hw), fvco / nout, parent_rate); return fvco / nout; @@ -146,7 +145,6 @@ static struct clk *xgene_register_clk_pll(struct device *dev, init.parent_names = parent_name ? &parent_name : NULL; init.num_parents = parent_name ? 1 : 0; - apmclk->name = name; apmclk->reg = reg; apmclk->lock = lock; apmclk->pll_offset = pll_offset; @@ -210,7 +208,6 @@ struct xgene_dev_parameters { struct xgene_clk { struct clk_hw hw; - const char *name; spinlock_t *lock; struct xgene_dev_parameters param; }; @@ -228,7 +225,7 @@ static int xgene_clk_enable(struct clk_hw *hw) spin_lock_irqsave(pclk->lock, flags); if (pclk->param.csr_reg != NULL) { - pr_debug("%s clock enabled\n", pclk->name); + pr_debug("%s clock enabled\n", clk_hw_get_name(hw)); reg = __pa(pclk->param.csr_reg); /* First enable the clock */ data = xgene_clk_read(pclk->param.csr_reg + @@ -237,7 +234,7 @@ static int xgene_clk_enable(struct clk_hw *hw) xgene_clk_write(data, pclk->param.csr_reg + pclk->param.reg_clk_offset); pr_debug("%s clock PADDR base %pa clk offset 0x%08X mask 0x%08X value 0x%08X\n", - pclk->name, ®, + clk_hw_get_name(hw), ®, pclk->param.reg_clk_offset, pclk->param.reg_clk_mask, data); @@ -248,7 +245,7 @@ static int xgene_clk_enable(struct clk_hw *hw) xgene_clk_write(data, pclk->param.csr_reg + pclk->param.reg_csr_offset); pr_debug("%s CSR RESET PADDR base %pa csr offset 0x%08X mask 0x%08X value 0x%08X\n", - pclk->name, ®, + clk_hw_get_name(hw), ®, pclk->param.reg_csr_offset, pclk->param.reg_csr_mask, data); } @@ -269,7 +266,7 @@ static void xgene_clk_disable(struct clk_hw *hw) spin_lock_irqsave(pclk->lock, flags); if (pclk->param.csr_reg != NULL) { - pr_debug("%s clock disabled\n", pclk->name); + pr_debug("%s clock disabled\n", clk_hw_get_name(hw)); /* First put the CSR in reset */ data = xgene_clk_read(pclk->param.csr_reg + pclk->param.reg_csr_offset); @@ -295,10 +292,10 @@ static int xgene_clk_is_enabled(struct clk_hw *hw) u32 data = 0; if (pclk->param.csr_reg != NULL) { - pr_debug("%s clock checking\n", pclk->name); + pr_debug("%s clock checking\n", clk_hw_get_name(hw)); data = xgene_clk_read(pclk->param.csr_reg + pclk->param.reg_clk_offset); - pr_debug("%s clock is %s\n", pclk->name, + pr_debug("%s clock is %s\n", clk_hw_get_name(hw), data & pclk->param.reg_clk_mask ? "enabled" : "disabled"); } @@ -321,11 +318,13 @@ static unsigned long xgene_clk_recalc_rate(struct clk_hw *hw, data &= (1 << pclk->param.reg_divider_width) - 1; pr_debug("%s clock recalc rate %ld parent %ld\n", - pclk->name, parent_rate / data, parent_rate); + clk_hw_get_name(hw), + parent_rate / data, parent_rate); + return parent_rate / data; } else { pr_debug("%s clock recalc rate %ld parent %ld\n", - pclk->name, parent_rate, parent_rate); + clk_hw_get_name(hw), parent_rate, parent_rate); return parent_rate; } } @@ -357,7 +356,7 @@ static int xgene_clk_set_rate(struct clk_hw *hw, unsigned long rate, data |= divider; xgene_clk_write(data, pclk->param.divider_reg + pclk->param.reg_divider_offset); - pr_debug("%s clock set rate %ld\n", pclk->name, + pr_debug("%s clock set rate %ld\n", clk_hw_get_name(hw), parent_rate / divider_save); } else { divider_save = 1; @@ -419,7 +418,6 @@ static struct clk *xgene_register_clk(struct device *dev, init.parent_names = parent_name ? &parent_name : NULL; init.num_parents = parent_name ? 1 : 0; - apmclk->name = name; apmclk->lock = lock; apmclk->hw.init = &init; apmclk->param = *parameters; diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index ddb4b541016f..43e2c3ad6c31 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -9,6 +9,7 @@ * Standard functionality for the common clock API. See Documentation/clk.txt */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clk/clk-conf.h> #include <linux/module.h> @@ -56,8 +57,11 @@ struct clk_core { struct clk_core *new_parent; struct clk_core *new_child; unsigned long flags; + bool orphan; unsigned int enable_count; unsigned int prepare_count; + unsigned long min_rate; + unsigned long max_rate; unsigned long accuracy; int phase; struct hlist_head children; @@ -111,12 +115,14 @@ static void clk_prepare_unlock(void) } static unsigned long clk_enable_lock(void) + __acquires(enable_lock) { unsigned long flags; if (!spin_trylock_irqsave(&enable_lock, flags)) { if (enable_owner == current) { enable_refcnt++; + __acquire(enable_lock); return flags; } spin_lock_irqsave(&enable_lock, flags); @@ -129,12 +135,15 @@ static unsigned long clk_enable_lock(void) } static void clk_enable_unlock(unsigned long flags) + __releases(enable_lock) { WARN_ON_ONCE(enable_owner != current); WARN_ON_ONCE(enable_refcnt == 0); - if (--enable_refcnt) + if (--enable_refcnt) { + __release(enable_lock); return; + } enable_owner = NULL; spin_unlock_irqrestore(&enable_lock, flags); } @@ -269,27 +278,29 @@ const char *__clk_get_name(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_name); +const char *clk_hw_get_name(const struct clk_hw *hw) +{ + return hw->core->name; +} +EXPORT_SYMBOL_GPL(clk_hw_get_name); + struct clk_hw *__clk_get_hw(struct clk *clk) { return !clk ? NULL : clk->core->hw; } EXPORT_SYMBOL_GPL(__clk_get_hw); -u8 __clk_get_num_parents(struct clk *clk) +unsigned int clk_hw_get_num_parents(const struct clk_hw *hw) { - return !clk ? 0 : clk->core->num_parents; + return hw->core->num_parents; } -EXPORT_SYMBOL_GPL(__clk_get_num_parents); +EXPORT_SYMBOL_GPL(clk_hw_get_num_parents); -struct clk *__clk_get_parent(struct clk *clk) +struct clk_hw *clk_hw_get_parent(const struct clk_hw *hw) { - if (!clk) - return NULL; - - /* TODO: Create a per-user clk and change callers to call clk_put */ - return !clk->core->parent ? NULL : clk->core->parent->hw->clk; + return hw->core->parent ? hw->core->parent->hw : NULL; } -EXPORT_SYMBOL_GPL(__clk_get_parent); +EXPORT_SYMBOL_GPL(clk_hw_get_parent); static struct clk_core *__clk_lookup_subtree(const char *name, struct clk_core *core) @@ -348,18 +359,16 @@ static struct clk_core *clk_core_get_parent_by_index(struct clk_core *core, return core->parents[index]; } -struct clk *clk_get_parent_by_index(struct clk *clk, u8 index) +struct clk_hw * +clk_hw_get_parent_by_index(const struct clk_hw *hw, unsigned int index) { struct clk_core *parent; - if (!clk) - return NULL; - - parent = clk_core_get_parent_by_index(clk->core, index); + parent = clk_core_get_parent_by_index(hw->core, index); - return !parent ? NULL : parent->hw->clk; + return !parent ? NULL : parent->hw; } -EXPORT_SYMBOL_GPL(clk_get_parent_by_index); +EXPORT_SYMBOL_GPL(clk_hw_get_parent_by_index); unsigned int __clk_get_enable_count(struct clk *clk) { @@ -387,14 +396,11 @@ out: return ret; } -unsigned long __clk_get_rate(struct clk *clk) +unsigned long clk_hw_get_rate(const struct clk_hw *hw) { - if (!clk) - return 0; - - return clk_core_get_rate_nolock(clk->core); + return clk_core_get_rate_nolock(hw->core); } -EXPORT_SYMBOL_GPL(__clk_get_rate); +EXPORT_SYMBOL_GPL(clk_hw_get_rate); static unsigned long __clk_get_accuracy(struct clk_core *core) { @@ -410,12 +416,15 @@ unsigned long __clk_get_flags(struct clk *clk) } EXPORT_SYMBOL_GPL(__clk_get_flags); -bool __clk_is_prepared(struct clk *clk) +unsigned long clk_hw_get_flags(const struct clk_hw *hw) { - if (!clk) - return false; + return hw->core->flags; +} +EXPORT_SYMBOL_GPL(clk_hw_get_flags); - return clk_core_is_prepared(clk->core); +bool clk_hw_is_prepared(const struct clk_hw *hw) +{ + return clk_core_is_prepared(hw->core); } bool __clk_is_enabled(struct clk *clk) @@ -436,28 +445,31 @@ static bool mux_is_better_rate(unsigned long rate, unsigned long now, return now <= rate && now > best; } -static long -clk_mux_determine_rate_flags(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_p, +static int +clk_mux_determine_rate_flags(struct clk_hw *hw, struct clk_rate_request *req, unsigned long flags) { struct clk_core *core = hw->core, *parent, *best_parent = NULL; - int i, num_parents; - unsigned long parent_rate, best = 0; + int i, num_parents, ret; + unsigned long best = 0; + struct clk_rate_request parent_req = *req; /* if NO_REPARENT flag set, pass through to current parent */ if (core->flags & CLK_SET_RATE_NO_REPARENT) { parent = core->parent; - if (core->flags & CLK_SET_RATE_PARENT) - best = __clk_determine_rate(parent ? parent->hw : NULL, - rate, min_rate, max_rate); - else if (parent) + if (core->flags & CLK_SET_RATE_PARENT) { + ret = __clk_determine_rate(parent ? parent->hw : NULL, + &parent_req); + if (ret) + return ret; + + best = parent_req.rate; + } else if (parent) { best = clk_core_get_rate_nolock(parent); - else + } else { best = clk_core_get_rate_nolock(core); + } + goto out; } @@ -467,24 +479,33 @@ clk_mux_determine_rate_flags(struct clk_hw *hw, unsigned long rate, parent = clk_core_get_parent_by_index(core, i); if (!parent) continue; - if (core->flags & CLK_SET_RATE_PARENT) - parent_rate = __clk_determine_rate(parent->hw, rate, - min_rate, - max_rate); - else - parent_rate = clk_core_get_rate_nolock(parent); - if (mux_is_better_rate(rate, parent_rate, best, flags)) { + + if (core->flags & CLK_SET_RATE_PARENT) { + parent_req = *req; + ret = __clk_determine_rate(parent->hw, &parent_req); + if (ret) + continue; + } else { + parent_req.rate = clk_core_get_rate_nolock(parent); + } + + if (mux_is_better_rate(req->rate, parent_req.rate, + best, flags)) { best_parent = parent; - best = parent_rate; + best = parent_req.rate; } } + if (!best_parent) + return -EINVAL; + out: if (best_parent) - *best_parent_p = best_parent->hw; - *best_parent_rate = best; + req->best_parent_hw = best_parent->hw; + req->best_parent_rate = best; + req->rate = best; - return best; + return 0; } struct clk *__clk_lookup(const char *name) @@ -500,8 +521,8 @@ static void clk_core_get_boundaries(struct clk_core *core, { struct clk *clk_user; - *min_rate = 0; - *max_rate = ULONG_MAX; + *min_rate = core->min_rate; + *max_rate = core->max_rate; hlist_for_each_entry(clk_user, &core->clks, clks_node) *min_rate = max(*min_rate, clk_user->min_rate); @@ -510,33 +531,30 @@ static void clk_core_get_boundaries(struct clk_core *core, *max_rate = min(*max_rate, clk_user->max_rate); } +void clk_hw_set_rate_range(struct clk_hw *hw, unsigned long min_rate, + unsigned long max_rate) +{ + hw->core->min_rate = min_rate; + hw->core->max_rate = max_rate; +} +EXPORT_SYMBOL_GPL(clk_hw_set_rate_range); + /* * Helper for finding best parent to provide a given frequency. This can be used * directly as a determine_rate callback (e.g. for a mux), or from a more * complex clock that may combine a mux with other operations. */ -long __clk_mux_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_p) +int __clk_mux_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { - return clk_mux_determine_rate_flags(hw, rate, min_rate, max_rate, - best_parent_rate, - best_parent_p, 0); + return clk_mux_determine_rate_flags(hw, req, 0); } EXPORT_SYMBOL_GPL(__clk_mux_determine_rate); -long __clk_mux_determine_rate_closest(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_p) +int __clk_mux_determine_rate_closest(struct clk_hw *hw, + struct clk_rate_request *req) { - return clk_mux_determine_rate_flags(hw, rate, min_rate, max_rate, - best_parent_rate, - best_parent_p, - CLK_MUX_ROUND_CLOSEST); + return clk_mux_determine_rate_flags(hw, req, CLK_MUX_ROUND_CLOSEST); } EXPORT_SYMBOL_GPL(__clk_mux_determine_rate_closest); @@ -759,14 +777,11 @@ int clk_enable(struct clk *clk) } EXPORT_SYMBOL_GPL(clk_enable); -static unsigned long clk_core_round_rate_nolock(struct clk_core *core, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate) +static int clk_core_round_rate_nolock(struct clk_core *core, + struct clk_rate_request *req) { - unsigned long parent_rate = 0; struct clk_core *parent; - struct clk_hw *parent_hw; + long rate; lockdep_assert_held(&prepare_lock); @@ -774,21 +789,30 @@ static unsigned long clk_core_round_rate_nolock(struct clk_core *core, return 0; parent = core->parent; - if (parent) - parent_rate = parent->rate; + if (parent) { + req->best_parent_hw = parent->hw; + req->best_parent_rate = parent->rate; + } else { + req->best_parent_hw = NULL; + req->best_parent_rate = 0; + } if (core->ops->determine_rate) { - parent_hw = parent ? parent->hw : NULL; - return core->ops->determine_rate(core->hw, rate, - min_rate, max_rate, - &parent_rate, &parent_hw); - } else if (core->ops->round_rate) - return core->ops->round_rate(core->hw, rate, &parent_rate); - else if (core->flags & CLK_SET_RATE_PARENT) - return clk_core_round_rate_nolock(core->parent, rate, min_rate, - max_rate); - else - return core->rate; + return core->ops->determine_rate(core->hw, req); + } else if (core->ops->round_rate) { + rate = core->ops->round_rate(core->hw, req->rate, + &req->best_parent_rate); + if (rate < 0) + return rate; + + req->rate = rate; + } else if (core->flags & CLK_SET_RATE_PARENT) { + return clk_core_round_rate_nolock(parent, req); + } else { + req->rate = core->rate; + } + + return 0; } /** @@ -800,38 +824,32 @@ static unsigned long clk_core_round_rate_nolock(struct clk_core *core, * * Useful for clk_ops such as .set_rate and .determine_rate. */ -unsigned long __clk_determine_rate(struct clk_hw *hw, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate) +int __clk_determine_rate(struct clk_hw *hw, struct clk_rate_request *req) { - if (!hw) + if (!hw) { + req->rate = 0; return 0; + } - return clk_core_round_rate_nolock(hw->core, rate, min_rate, max_rate); + return clk_core_round_rate_nolock(hw->core, req); } EXPORT_SYMBOL_GPL(__clk_determine_rate); -/** - * __clk_round_rate - round the given rate for a clk - * @clk: round the rate of this clock - * @rate: the rate which is to be rounded - * - * Useful for clk_ops such as .set_rate - */ -unsigned long __clk_round_rate(struct clk *clk, unsigned long rate) +unsigned long clk_hw_round_rate(struct clk_hw *hw, unsigned long rate) { - unsigned long min_rate; - unsigned long max_rate; + int ret; + struct clk_rate_request req; - if (!clk) - return 0; + clk_core_get_boundaries(hw->core, &req.min_rate, &req.max_rate); + req.rate = rate; - clk_core_get_boundaries(clk->core, &min_rate, &max_rate); + ret = clk_core_round_rate_nolock(hw->core, &req); + if (ret) + return 0; - return clk_core_round_rate_nolock(clk->core, rate, min_rate, max_rate); + return req.rate; } -EXPORT_SYMBOL_GPL(__clk_round_rate); +EXPORT_SYMBOL_GPL(clk_hw_round_rate); /** * clk_round_rate - round the given rate for a clk @@ -844,16 +862,24 @@ EXPORT_SYMBOL_GPL(__clk_round_rate); */ long clk_round_rate(struct clk *clk, unsigned long rate) { - unsigned long ret; + struct clk_rate_request req; + int ret; if (!clk) return 0; clk_prepare_lock(); - ret = __clk_round_rate(clk, rate); + + clk_core_get_boundaries(clk->core, &req.min_rate, &req.max_rate); + req.rate = rate; + + ret = clk_core_round_rate_nolock(clk->core, &req); clk_prepare_unlock(); - return ret; + if (ret) + return ret; + + return req.rate; } EXPORT_SYMBOL_GPL(clk_round_rate); @@ -1064,18 +1090,40 @@ static int clk_fetch_parent_index(struct clk_core *core, return -EINVAL; } +/* + * Update the orphan status of @core and all its children. + */ +static void clk_core_update_orphan_status(struct clk_core *core, bool is_orphan) +{ + struct clk_core *child; + + core->orphan = is_orphan; + + hlist_for_each_entry(child, &core->children, child_node) + clk_core_update_orphan_status(child, is_orphan); +} + static void clk_reparent(struct clk_core *core, struct clk_core *new_parent) { + bool was_orphan = core->orphan; + hlist_del(&core->child_node); if (new_parent) { + bool becomes_orphan = new_parent->orphan; + /* avoid duplicate POST_RATE_CHANGE notifications */ if (new_parent->new_child == core) new_parent->new_child = NULL; hlist_add_head(&core->child_node, &new_parent->children); + + if (was_orphan != becomes_orphan) + clk_core_update_orphan_status(core, becomes_orphan); } else { hlist_add_head(&core->child_node, &clk_orphan_list); + if (!was_orphan) + clk_core_update_orphan_status(core, true); } core->parent = new_parent; @@ -1160,14 +1208,8 @@ static int __clk_set_parent(struct clk_core *core, struct clk_core *parent, flags = clk_enable_lock(); clk_reparent(core, old_parent); clk_enable_unlock(flags); + __clk_set_parent_after(core, old_parent, parent); - if (core->prepare_count) { - flags = clk_enable_lock(); - clk_core_disable(core); - clk_core_disable(parent); - clk_enable_unlock(flags); - clk_core_unprepare(parent); - } return ret; } @@ -1249,7 +1291,6 @@ static struct clk_core *clk_calc_new_rates(struct clk_core *core, { struct clk_core *top = core; struct clk_core *old_parent, *parent; - struct clk_hw *parent_hw; unsigned long best_parent_rate = 0; unsigned long new_rate; unsigned long min_rate; @@ -1270,20 +1311,29 @@ static struct clk_core *clk_calc_new_rates(struct clk_core *core, /* find the closest rate and parent clk/rate */ if (core->ops->determine_rate) { - parent_hw = parent ? parent->hw : NULL; - ret = core->ops->determine_rate(core->hw, rate, - min_rate, - max_rate, - &best_parent_rate, - &parent_hw); + struct clk_rate_request req; + + req.rate = rate; + req.min_rate = min_rate; + req.max_rate = max_rate; + if (parent) { + req.best_parent_hw = parent->hw; + req.best_parent_rate = parent->rate; + } else { + req.best_parent_hw = NULL; + req.best_parent_rate = 0; + } + + ret = core->ops->determine_rate(core->hw, &req); if (ret < 0) return NULL; - new_rate = ret; - parent = parent_hw ? parent_hw->core : NULL; + best_parent_rate = req.best_parent_rate; + new_rate = req.rate; + parent = req.best_parent_hw ? req.best_parent_hw->core : NULL; } else if (core->ops->round_rate) { ret = core->ops->round_rate(core->hw, rate, - &best_parent_rate); + &best_parent_rate); if (ret < 0) return NULL; @@ -1592,8 +1642,12 @@ struct clk *clk_get_parent(struct clk *clk) { struct clk *parent; + if (!clk) + return NULL; + clk_prepare_lock(); - parent = __clk_get_parent(clk); + /* TODO: Create a per-user clk and change callers to call clk_put */ + parent = !clk->core->parent ? NULL : clk->core->parent->hw->clk; clk_prepare_unlock(); return parent; @@ -2324,13 +2378,17 @@ static int __clk_init(struct device *dev, struct clk *clk_user) * clocks and re-parent any that are children of the clock currently * being clk_init'd. */ - if (core->parent) + if (core->parent) { hlist_add_head(&core->child_node, &core->parent->children); - else if (core->flags & CLK_IS_ROOT) + core->orphan = core->parent->orphan; + } else if (core->flags & CLK_IS_ROOT) { hlist_add_head(&core->child_node, &clk_root_list); - else + core->orphan = false; + } else { hlist_add_head(&core->child_node, &clk_orphan_list); + core->orphan = true; + } /* * Set clk's accuracy. The preferred method is to use @@ -2479,6 +2537,8 @@ struct clk *clk_register(struct device *dev, struct clk_hw *hw) core->hw = hw; core->flags = hw->init->flags; core->num_parents = hw->init->num_parents; + core->min_rate = 0; + core->max_rate = ULONG_MAX; hw->core = core; /* allocate local copy in case parent_names is __initdata */ @@ -3054,8 +3114,6 @@ struct clock_provider { struct list_head node; }; -static LIST_HEAD(clk_provider_list); - /* * This function looks for a parent clock. If there is one, then it * checks that the provider for this parent clock was initialized, in @@ -3106,14 +3164,24 @@ void __init of_clk_init(const struct of_device_id *matches) struct clock_provider *clk_provider, *next; bool is_init_done; bool force = false; + LIST_HEAD(clk_provider_list); if (!matches) matches = &__clk_of_table; /* First prepare the list of the clocks providers */ for_each_matching_node_and_match(np, matches, &match) { - struct clock_provider *parent = - kzalloc(sizeof(struct clock_provider), GFP_KERNEL); + struct clock_provider *parent; + + parent = kzalloc(sizeof(*parent), GFP_KERNEL); + if (!parent) { + list_for_each_entry_safe(clk_provider, next, + &clk_provider_list, node) { + list_del(&clk_provider->node); + kfree(clk_provider); + } + return; + } parent->clk_init_cb = match->data; parent->np = np; diff --git a/drivers/clk/h8300/clk-div.c b/drivers/clk/h8300/clk-div.c index 56f9eba91b83..1dd5d14d5dbe 100644 --- a/drivers/clk/h8300/clk-div.c +++ b/drivers/clk/h8300/clk-div.c @@ -4,8 +4,6 @@ * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp> */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/of.h> @@ -15,7 +13,7 @@ static DEFINE_SPINLOCK(clklock); static void __init h8300_div_clk_setup(struct device_node *node) { - unsigned int num_parents; + int num_parents; struct clk *clk; const char *clk_name = node->name; const char *parent_name; diff --git a/drivers/clk/h8300/clk-h8s2678.c b/drivers/clk/h8300/clk-h8s2678.c index 4701b093e497..2a38eb4a2552 100644 --- a/drivers/clk/h8300/clk-h8s2678.c +++ b/drivers/clk/h8300/clk-h8s2678.c @@ -4,8 +4,6 @@ * Copyright 2015 Yoshinori Sato <ysato@users.sourceforge.jp> */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/device.h> @@ -28,7 +26,7 @@ static unsigned long pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { struct pll_clock *pll_clock = to_pll_clock(hw); - int mul = 1 << (ctrl_inb((unsigned long)pll_clock->pllcr) & 3); + int mul = 1 << (readb(pll_clock->pllcr) & 3); return parent_rate * mul; } @@ -65,13 +63,13 @@ static int pll_set_rate(struct clk_hw *hw, unsigned long rate, pll = ((rate / parent_rate) / 2) & 0x03; spin_lock_irqsave(&clklock, flags); - val = ctrl_inb((unsigned long)pll_clock->sckcr); + val = readb(pll_clock->sckcr); val |= 0x08; - ctrl_outb(val, (unsigned long)pll_clock->sckcr); - val = ctrl_inb((unsigned long)pll_clock->pllcr); + writeb(val, pll_clock->sckcr); + val = readb(pll_clock->pllcr); val &= ~0x03; val |= pll; - ctrl_outb(val, (unsigned long)pll_clock->pllcr); + writeb(val, pll_clock->pllcr); spin_unlock_irqrestore(&clklock, flags); return 0; } @@ -84,7 +82,7 @@ static const struct clk_ops pll_ops = { static void __init h8s2678_pll_clk_setup(struct device_node *node) { - unsigned int num_parents; + int num_parents; struct clk *clk; const char *clk_name = node->name; const char *parent_name; @@ -98,11 +96,9 @@ static void __init h8s2678_pll_clk_setup(struct device_node *node) } - pll_clock = kzalloc(sizeof(struct pll_clock), GFP_KERNEL); - if (!pll_clock) { - pr_err("%s: failed to alloc memory", clk_name); + pll_clock = kzalloc(sizeof(*pll_clock), GFP_KERNEL); + if (!pll_clock) return; - } pll_clock->sckcr = of_iomap(node, 0); if (pll_clock->sckcr == NULL) { diff --git a/drivers/clk/hisilicon/Kconfig b/drivers/clk/hisilicon/Kconfig index b4165ba75d9f..2c16807341dc 100644 --- a/drivers/clk/hisilicon/Kconfig +++ b/drivers/clk/hisilicon/Kconfig @@ -1,6 +1,6 @@ config COMMON_CLK_HI6220 bool "Hi6220 Clock Driver" - depends on ARCH_HISI || COMPILE_TEST + depends on (ARCH_HISI || COMPILE_TEST) && MAILBOX default ARCH_HISI help Build the Hisilicon Hi6220 clock driver based on the common clock framework. diff --git a/drivers/clk/hisilicon/Makefile b/drivers/clk/hisilicon/Makefile index 48f0116a032a..4a1001a11f04 100644 --- a/drivers/clk/hisilicon/Makefile +++ b/drivers/clk/hisilicon/Makefile @@ -7,4 +7,4 @@ obj-y += clk.o clkgate-separated.o clkdivider-hi6220.o obj-$(CONFIG_ARCH_HI3xxx) += clk-hi3620.o obj-$(CONFIG_ARCH_HIP04) += clk-hip04.o obj-$(CONFIG_ARCH_HIX5HD2) += clk-hix5hd2.o -obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o +obj-$(CONFIG_COMMON_CLK_HI6220) += clk-hi6220.o clk-hi6220-stub.o diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c index 715d34a5ef9b..7d03fe17d66f 100644 --- a/drivers/clk/hisilicon/clk-hi3620.c +++ b/drivers/clk/hisilicon/clk-hi3620.c @@ -25,13 +25,11 @@ #include <linux/kernel.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/io.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_device.h> #include <linux/slab.h> -#include <linux/clk.h> #include <dt-bindings/clock/hi3620-clock.h> @@ -294,34 +292,29 @@ static unsigned long mmc_clk_recalc_rate(struct clk_hw *hw, } } -static long mmc_clk_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_p) +static int mmc_clk_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_mmc *mclk = to_mmc(hw); - unsigned long best = 0; - if ((rate <= 13000000) && (mclk->id == HI3620_MMC_CIUCLK1)) { - rate = 13000000; - best = 26000000; - } else if (rate <= 26000000) { - rate = 25000000; - best = 180000000; - } else if (rate <= 52000000) { - rate = 50000000; - best = 360000000; - } else if (rate <= 100000000) { - rate = 100000000; - best = 720000000; + if ((req->rate <= 13000000) && (mclk->id == HI3620_MMC_CIUCLK1)) { + req->rate = 13000000; + req->best_parent_rate = 26000000; + } else if (req->rate <= 26000000) { + req->rate = 25000000; + req->best_parent_rate = 180000000; + } else if (req->rate <= 52000000) { + req->rate = 50000000; + req->best_parent_rate = 360000000; + } else if (req->rate <= 100000000) { + req->rate = 100000000; + req->best_parent_rate = 720000000; } else { /* max is 180M */ - rate = 180000000; - best = 1440000000; + req->rate = 180000000; + req->best_parent_rate = 1440000000; } - *best_parent_rate = best; - return rate; + return -EINVAL; } static u32 mmc_clk_delay(u32 val, u32 para, u32 off, u32 len) diff --git a/drivers/clk/hisilicon/clk-hi6220-stub.c b/drivers/clk/hisilicon/clk-hi6220-stub.c new file mode 100644 index 000000000000..2c4add11c1ca --- /dev/null +++ b/drivers/clk/hisilicon/clk-hi6220-stub.c @@ -0,0 +1,276 @@ +/* + * Hi6220 stub clock driver + * + * Copyright (c) 2015 Hisilicon Limited. + * Copyright (c) 2015 Linaro Limited. + * + * Author: Leo Yan <leo.yan@linaro.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#include <linux/clk-provider.h> +#include <linux/err.h> +#include <linux/kernel.h> +#include <linux/mfd/syscon.h> +#include <linux/mailbox_client.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/regmap.h> + +/* Stub clocks id */ +#define HI6220_STUB_ACPU0 0 +#define HI6220_STUB_ACPU1 1 +#define HI6220_STUB_GPU 2 +#define HI6220_STUB_DDR 5 + +/* Mailbox message */ +#define HI6220_MBOX_MSG_LEN 8 + +#define HI6220_MBOX_FREQ 0xA +#define HI6220_MBOX_CMD_SET 0x3 +#define HI6220_MBOX_OBJ_AP 0x0 + +/* CPU dynamic frequency scaling */ +#define ACPU_DFS_FREQ_MAX 0x1724 +#define ACPU_DFS_CUR_FREQ 0x17CC +#define ACPU_DFS_FLAG 0x1B30 +#define ACPU_DFS_FREQ_REQ 0x1B34 +#define ACPU_DFS_FREQ_LMT 0x1B38 +#define ACPU_DFS_LOCK_FLAG 0xAEAEAEAE + +#define to_stub_clk(hw) container_of(hw, struct hi6220_stub_clk, hw) + +struct hi6220_stub_clk { + u32 id; + + struct device *dev; + struct clk_hw hw; + + struct regmap *dfs_map; + struct mbox_client cl; + struct mbox_chan *mbox; +}; + +struct hi6220_mbox_msg { + unsigned char type; + unsigned char cmd; + unsigned char obj; + unsigned char src; + unsigned char para[4]; +}; + +union hi6220_mbox_data { + unsigned int data[HI6220_MBOX_MSG_LEN]; + struct hi6220_mbox_msg msg; +}; + +static unsigned int hi6220_acpu_get_freq(struct hi6220_stub_clk *stub_clk) +{ + unsigned int freq; + + regmap_read(stub_clk->dfs_map, ACPU_DFS_CUR_FREQ, &freq); + return freq; +} + +static int hi6220_acpu_set_freq(struct hi6220_stub_clk *stub_clk, + unsigned int freq) +{ + union hi6220_mbox_data data; + + /* set the frequency in sram */ + regmap_write(stub_clk->dfs_map, ACPU_DFS_FREQ_REQ, freq); + + /* compound mailbox message */ + data.msg.type = HI6220_MBOX_FREQ; + data.msg.cmd = HI6220_MBOX_CMD_SET; + data.msg.obj = HI6220_MBOX_OBJ_AP; + data.msg.src = HI6220_MBOX_OBJ_AP; + + mbox_send_message(stub_clk->mbox, &data); + return 0; +} + +static int hi6220_acpu_round_freq(struct hi6220_stub_clk *stub_clk, + unsigned int freq) +{ + unsigned int limit_flag, limit_freq = UINT_MAX; + unsigned int max_freq; + + /* check the constrained frequency */ + regmap_read(stub_clk->dfs_map, ACPU_DFS_FLAG, &limit_flag); + if (limit_flag == ACPU_DFS_LOCK_FLAG) + regmap_read(stub_clk->dfs_map, ACPU_DFS_FREQ_LMT, &limit_freq); + + /* check the supported maximum frequency */ + regmap_read(stub_clk->dfs_map, ACPU_DFS_FREQ_MAX, &max_freq); + + /* calculate the real maximum frequency */ + max_freq = min(max_freq, limit_freq); + + if (WARN_ON(freq > max_freq)) + freq = max_freq; + + return freq; +} + +static unsigned long hi6220_stub_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + u32 rate = 0; + struct hi6220_stub_clk *stub_clk = to_stub_clk(hw); + + switch (stub_clk->id) { + case HI6220_STUB_ACPU0: + rate = hi6220_acpu_get_freq(stub_clk); + + /* convert from kHz to Hz */ + rate *= 1000; + break; + + default: + dev_err(stub_clk->dev, "%s: un-supported clock id %d\n", + __func__, stub_clk->id); + break; + } + + return rate; +} + +static int hi6220_stub_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct hi6220_stub_clk *stub_clk = to_stub_clk(hw); + unsigned long new_rate = rate / 1000; /* kHz */ + int ret = 0; + + switch (stub_clk->id) { + case HI6220_STUB_ACPU0: + ret = hi6220_acpu_set_freq(stub_clk, new_rate); + if (ret < 0) + return ret; + + break; + + default: + dev_err(stub_clk->dev, "%s: un-supported clock id %d\n", + __func__, stub_clk->id); + break; + } + + pr_debug("%s: set rate=%ldkHz\n", __func__, new_rate); + return ret; +} + +static long hi6220_stub_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *parent_rate) +{ + struct hi6220_stub_clk *stub_clk = to_stub_clk(hw); + unsigned long new_rate = rate / 1000; /* kHz */ + + switch (stub_clk->id) { + case HI6220_STUB_ACPU0: + new_rate = hi6220_acpu_round_freq(stub_clk, new_rate); + + /* convert from kHz to Hz */ + new_rate *= 1000; + break; + + default: + dev_err(stub_clk->dev, "%s: un-supported clock id %d\n", + __func__, stub_clk->id); + break; + } + + return new_rate; +} + +static const struct clk_ops hi6220_stub_clk_ops = { + .recalc_rate = hi6220_stub_clk_recalc_rate, + .round_rate = hi6220_stub_clk_round_rate, + .set_rate = hi6220_stub_clk_set_rate, +}; + +static int hi6220_stub_clk_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct clk_init_data init; + struct hi6220_stub_clk *stub_clk; + struct clk *clk; + struct device_node *np = pdev->dev.of_node; + int ret; + + stub_clk = devm_kzalloc(dev, sizeof(*stub_clk), GFP_KERNEL); + if (!stub_clk) + return -ENOMEM; + + stub_clk->dfs_map = syscon_regmap_lookup_by_phandle(np, + "hisilicon,hi6220-clk-sram"); + if (IS_ERR(stub_clk->dfs_map)) { + dev_err(dev, "failed to get sram regmap\n"); + return PTR_ERR(stub_clk->dfs_map); + } + + stub_clk->hw.init = &init; + stub_clk->dev = dev; + stub_clk->id = HI6220_STUB_ACPU0; + + /* Use mailbox client with blocking mode */ + stub_clk->cl.dev = dev; + stub_clk->cl.tx_done = NULL; + stub_clk->cl.tx_block = true; + stub_clk->cl.tx_tout = 500; + stub_clk->cl.knows_txdone = false; + + /* Allocate mailbox channel */ + stub_clk->mbox = mbox_request_channel(&stub_clk->cl, 0); + if (IS_ERR(stub_clk->mbox)) { + dev_err(dev, "failed get mailbox channel\n"); + return PTR_ERR(stub_clk->mbox); + }; + + init.name = "acpu0"; + init.ops = &hi6220_stub_clk_ops; + init.num_parents = 0; + init.flags = CLK_IS_ROOT; + + clk = devm_clk_register(dev, &stub_clk->hw); + if (IS_ERR(clk)) + return PTR_ERR(clk); + + ret = of_clk_add_provider(np, of_clk_src_simple_get, clk); + if (ret) { + dev_err(dev, "failed to register OF clock provider\n"); + return ret; + } + + /* initialize buffer to zero */ + regmap_write(stub_clk->dfs_map, ACPU_DFS_FLAG, 0x0); + regmap_write(stub_clk->dfs_map, ACPU_DFS_FREQ_REQ, 0x0); + regmap_write(stub_clk->dfs_map, ACPU_DFS_FREQ_LMT, 0x0); + + dev_dbg(dev, "Registered clock '%s'\n", init.name); + return 0; +} + +static const struct of_device_id hi6220_stub_clk_of_match[] = { + { .compatible = "hisilicon,hi6220-stub-clk", }, + {} +}; + +static struct platform_driver hi6220_stub_clk_driver = { + .driver = { + .name = "hi6220-stub-clk", + .of_match_table = hi6220_stub_clk_of_match, + }, + .probe = hi6220_stub_clk_probe, +}; + +static int __init hi6220_stub_clk_init(void) +{ + return platform_driver_register(&hi6220_stub_clk_driver); +} +subsys_initcall(hi6220_stub_clk_init); diff --git a/drivers/clk/hisilicon/clk-hip04.c b/drivers/clk/hisilicon/clk-hip04.c index 132b57a0ce09..8ca967308343 100644 --- a/drivers/clk/hisilicon/clk-hip04.c +++ b/drivers/clk/hisilicon/clk-hip04.c @@ -24,13 +24,11 @@ #include <linux/kernel.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/io.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_device.h> #include <linux/slab.h> -#include <linux/clk.h> #include <dt-bindings/clock/hip04-clock.h> diff --git a/drivers/clk/hisilicon/clk.c b/drivers/clk/hisilicon/clk.c index c90a89739b03..9f8e76676553 100644 --- a/drivers/clk/hisilicon/clk.c +++ b/drivers/clk/hisilicon/clk.c @@ -24,15 +24,14 @@ */ #include <linux/kernel.h> -#include <linux/clk-provider.h> #include <linux/clkdev.h> +#include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/io.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/of_device.h> #include <linux/slab.h> -#include <linux/clk.h> #include "clk.h" @@ -45,14 +44,9 @@ struct hisi_clock_data __init *hisi_clk_init(struct device_node *np, struct clk **clk_table; void __iomem *base; - if (np) { - base = of_iomap(np, 0); - if (!base) { - pr_err("failed to map Hisilicon clock registers\n"); - goto err; - } - } else { - pr_err("failed to find Hisilicon clock node in DTS\n"); + base = of_iomap(np, 0); + if (!base) { + pr_err("%s: failed to map clock registers\n", __func__); goto err; } diff --git a/drivers/clk/hisilicon/clkgate-separated.c b/drivers/clk/hisilicon/clkgate-separated.c index b03d5a7246f9..a47812f56a17 100644 --- a/drivers/clk/hisilicon/clkgate-separated.c +++ b/drivers/clk/hisilicon/clkgate-separated.c @@ -25,10 +25,8 @@ #include <linux/kernel.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/io.h> #include <linux/slab.h> -#include <linux/clk.h> #include "clk.h" diff --git a/drivers/clk/imx/Makefile b/drivers/clk/imx/Makefile index 75fae169ce8f..1ada68abb158 100644 --- a/drivers/clk/imx/Makefile +++ b/drivers/clk/imx/Makefile @@ -22,5 +22,6 @@ obj-$(CONFIG_SOC_IMX5) += clk-imx51-imx53.o obj-$(CONFIG_SOC_IMX6Q) += clk-imx6q.o obj-$(CONFIG_SOC_IMX6SL) += clk-imx6sl.o obj-$(CONFIG_SOC_IMX6SX) += clk-imx6sx.o +obj-$(CONFIG_SOC_IMX6UL) += clk-imx6ul.o obj-$(CONFIG_SOC_IMX7D) += clk-imx7d.o obj-$(CONFIG_SOC_VF610) += clk-vf610.o diff --git a/drivers/clk/imx/clk-imx1.c b/drivers/clk/imx/clk-imx1.c index c2647fa19f28..99cf802fa51f 100644 --- a/drivers/clk/imx/clk-imx1.c +++ b/drivers/clk/imx/clk-imx1.c @@ -15,7 +15,6 @@ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. */ -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/err.h> diff --git a/drivers/clk/imx/clk-imx21.c b/drivers/clk/imx/clk-imx21.c index dba987e3b89f..e63188eb08ac 100644 --- a/drivers/clk/imx/clk-imx21.c +++ b/drivers/clk/imx/clk-imx21.c @@ -9,7 +9,6 @@ * of the License, or (at your option) any later version. */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/of.h> diff --git a/drivers/clk/imx/clk-imx31.c b/drivers/clk/imx/clk-imx31.c index fe66c40b7be2..1f8383475bb3 100644 --- a/drivers/clk/imx/clk-imx31.c +++ b/drivers/clk/imx/clk-imx31.c @@ -147,7 +147,8 @@ int __init mx31_clocks_init(unsigned long fref) clk_register_clkdev(clk[cspi3_gate], NULL, "imx31-cspi.2"); clk_register_clkdev(clk[pwm_gate], "pwm", NULL); clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0"); - clk_register_clkdev(clk[rtc_gate], NULL, "imx21-rtc"); + clk_register_clkdev(clk[ckil], "ref", "imx21-rtc"); + clk_register_clkdev(clk[rtc_gate], "ipg", "imx21-rtc"); clk_register_clkdev(clk[epit1_gate], "epit", NULL); clk_register_clkdev(clk[epit2_gate], "epit", NULL); clk_register_clkdev(clk[nfc], NULL, "imx27-nand.0"); diff --git a/drivers/clk/imx/clk-imx35.c b/drivers/clk/imx/clk-imx35.c index 69138ba3dec7..8623cd4e49fd 100644 --- a/drivers/clk/imx/clk-imx35.c +++ b/drivers/clk/imx/clk-imx35.c @@ -66,7 +66,7 @@ static const char *std_sel[] = {"ppll", "arm"}; static const char *ipg_per_sel[] = {"ahb_per_div", "arm_per_div"}; enum mx35_clks { - ckih, mpll, ppll, mpll_075, arm, hsp, hsp_div, hsp_sel, ahb, ipg, + ckih, ckil, mpll, ppll, mpll_075, arm, hsp, hsp_div, hsp_sel, ahb, ipg, arm_per_div, ahb_per_div, ipg_per, uart_sel, uart_div, esdhc_sel, esdhc1_div, esdhc2_div, esdhc3_div, spdif_sel, spdif_div_pre, spdif_div_post, ssi_sel, ssi1_div_pre, ssi1_div_post, ssi2_div_pre, @@ -107,6 +107,7 @@ int __init mx35_clocks_init(void) } clk[ckih] = imx_clk_fixed("ckih", 24000000); + clk[ckil] = imx_clk_fixed("ckih", 32768); clk[mpll] = imx_clk_pllv1(IMX_PLLV1_IMX35, "mpll", "ckih", base + MX35_CCM_MPCTL); clk[ppll] = imx_clk_pllv1(IMX_PLLV1_IMX35, "ppll", "ckih", base + MX35_CCM_PPCTL); @@ -258,6 +259,9 @@ int __init mx35_clocks_init(void) clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.1"); clk_register_clkdev(clk[uart3_gate], "per", "imx21-uart.2"); clk_register_clkdev(clk[ipg], "ipg", "imx21-uart.2"); + /* i.mx35 has the i.mx21 type rtc */ + clk_register_clkdev(clk[ckil], "ref", "imx21-rtc"); + clk_register_clkdev(clk[rtc_gate], "ipg", "imx21-rtc"); clk_register_clkdev(clk[usb_div], "per", "mxc-ehci.0"); clk_register_clkdev(clk[ipg], "ipg", "mxc-ehci.0"); clk_register_clkdev(clk[usbotg_gate], "ahb", "mxc-ehci.0"); diff --git a/drivers/clk/imx/clk-imx6q.c b/drivers/clk/imx/clk-imx6q.c index d046f8e43de8..c507bcad2c37 100644 --- a/drivers/clk/imx/clk-imx6q.c +++ b/drivers/clk/imx/clk-imx6q.c @@ -494,6 +494,10 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node) clk_set_parent(clk[IMX6QDL_CLK_LDB_DI1_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); } + clk_set_rate(clk[IMX6QDL_CLK_PLL3_PFD1_540M], 540000000); + if (clk_on_imx6dl()) + clk_set_parent(clk[IMX6QDL_CLK_IPU1_SEL], clk[IMX6QDL_CLK_PLL3_PFD1_540M]); + clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); clk_set_parent(clk[IMX6QDL_CLK_IPU1_DI1_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); clk_set_parent(clk[IMX6QDL_CLK_IPU2_DI0_PRE_SEL], clk[IMX6QDL_CLK_PLL5_VIDEO_DIV]); diff --git a/drivers/clk/imx/clk-imx6ul.c b/drivers/clk/imx/clk-imx6ul.c new file mode 100644 index 000000000000..aaa36650695f --- /dev/null +++ b/drivers/clk/imx/clk-imx6ul.c @@ -0,0 +1,432 @@ +/* + * Copyright (C) 2015 Freescale Semiconductor, Inc. + * + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include <dt-bindings/clock/imx6ul-clock.h> +#include <linux/clk.h> +#include <linux/clkdev.h> +#include <linux/err.h> +#include <linux/init.h> +#include <linux/io.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/of_irq.h> +#include <linux/types.h> + +#include "clk.h" + +#define BM_CCM_CCDR_MMDC_CH0_MASK (0x2 << 16) +#define CCDR 0x4 + +static const char *pll_bypass_src_sels[] = { "osc", "dummy", }; +static const char *pll1_bypass_sels[] = { "pll1", "pll1_bypass_src", }; +static const char *pll2_bypass_sels[] = { "pll2", "pll2_bypass_src", }; +static const char *pll3_bypass_sels[] = { "pll3", "pll3_bypass_src", }; +static const char *pll4_bypass_sels[] = { "pll4", "pll4_bypass_src", }; +static const char *pll5_bypass_sels[] = { "pll5", "pll5_bypass_src", }; +static const char *pll6_bypass_sels[] = { "pll6", "pll6_bypass_src", }; +static const char *pll7_bypass_sels[] = { "pll7", "pll7_bypass_src", }; +static const char *ca7_secondary_sels[] = { "pll2_pfd2_396m", "pll2_bus", }; +static const char *step_sels[] = { "osc", "ca7_secondary_sel", }; +static const char *pll1_sw_sels[] = { "pll1_sys", "step", }; +static const char *axi_alt_sels[] = { "pll2_pfd2_396m", "pll3_pfd1_540m", }; +static const char *axi_sels[] = {"periph", "axi_alt_sel", }; +static const char *periph_pre_sels[] = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", }; +static const char *periph2_pre_sels[] = { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll4_audio_div", }; +static const char *periph_clk2_sels[] = { "pll3_usb_otg", "osc", "osc", }; +static const char *periph2_clk2_sels[] = { "pll3_usb_otg", "osc", }; +static const char *periph_sels[] = { "periph_pre", "periph_clk2", }; +static const char *periph2_sels[] = { "periph2_pre", "periph2_clk2", }; +static const char *usdhc_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *bch_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *gpmi_sels[] = { "pll2_pfd2_396m", "pll2_pfd0_352m", }; +static const char *eim_slow_sels[] = { "axi", "pll3_usb_otg", "pll2_pfd2_396m", "pll3_pfd0_720m", }; +static const char *spdif_sels[] = { "pll4_audio_div", "pll3_pfd2_508m", "pll5_video_div", "pll3_usb_otg", }; +static const char *sai_sels[] = { "pll3_pfd2_508m", "pll5_video_div", "pll4_audio_div", }; +static const char *lcdif_pre_sels[] = { "pll2_bus", "pll3_pfd3_454m", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd1_594m", "pll3_pfd1_540m", }; +static const char *sim_pre_sels[] = { "pll2_bus", "pll3_usb_otg", "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll3_pfd2_508m", }; +static const char *ldb_di0_sels[] = { "pll5_video_div", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll2_pfd3_594m", "pll2_pfd1_594m", "pll3_pfd3_454m", }; +static const char *ldb_di0_div_sels[] = { "ldb_di0_div_3_5", "ldb_di0_div_7", }; +static const char *ldb_di1_div_sels[] = { "ldb_di1_div_3_5", "ldb_di1_div_7", }; +static const char *qspi1_sels[] = { "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", "pll2_bus", "pll3_pfd3_454m", "pll3_pfd2_508m", }; +static const char *enfc_sels[] = { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", "pll3_pfd3_454m", "dummy", "dummy", "dummy", }; +static const char *can_sels[] = { "pll3_60m", "osc", "pll3_80m", "dummy", }; +static const char *ecspi_sels[] = { "pll3_60m", "osc", }; +static const char *uart_sels[] = { "pll3_80m", "osc", }; +static const char *perclk_sels[] = { "ipg", "osc", }; +static const char *lcdif_sels[] = { "lcdif_podf", "ipp_di0", "ipp_di1", "ldb_di0", "ldb_di1", }; +static const char *csi_sels[] = { "osc", "pll2_pfd2_396m", "pll3_120m", "pll3_pfd1_540m", }; +static const char *sim_sels[] = { "sim_podf", "ipp_di0", "ipp_di1", "ldb_di0", "ldb_di1", }; + +static struct clk *clks[IMX6UL_CLK_END]; +static struct clk_onecell_data clk_data; + +static int const clks_init_on[] __initconst = { + IMX6UL_CLK_AIPSTZ1, IMX6UL_CLK_AIPSTZ2, IMX6UL_CLK_AIPSTZ3, + IMX6UL_CLK_AXI, IMX6UL_CLK_ARM, IMX6UL_CLK_ROM, + IMX6UL_CLK_MMDC_P0_FAST, IMX6UL_CLK_MMDC_P0_IPG, +}; + +static struct clk_div_table clk_enet_ref_table[] = { + { .val = 0, .div = 20, }, + { .val = 1, .div = 10, }, + { .val = 2, .div = 5, }, + { .val = 3, .div = 4, }, + { } +}; + +static struct clk_div_table post_div_table[] = { + { .val = 2, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 0, .div = 4, }, + { } +}; + +static struct clk_div_table video_div_table[] = { + { .val = 0, .div = 1, }, + { .val = 1, .div = 2, }, + { .val = 2, .div = 1, }, + { .val = 3, .div = 4, }, + { } +}; + +static u32 share_count_asrc; +static u32 share_count_audio; +static u32 share_count_sai1; +static u32 share_count_sai2; +static u32 share_count_sai3; + +static void __init imx6ul_clocks_init(struct device_node *ccm_node) +{ + struct device_node *np; + void __iomem *base; + int i; + + clks[IMX6UL_CLK_DUMMY] = imx_clk_fixed("dummy", 0); + + clks[IMX6UL_CLK_CKIL] = of_clk_get_by_name(ccm_node, "ckil"); + clks[IMX6UL_CLK_OSC] = of_clk_get_by_name(ccm_node, "osc"); + + /* ipp_di clock is external input */ + clks[IMX6UL_CLK_IPP_DI0] = of_clk_get_by_name(ccm_node, "ipp_di0"); + clks[IMX6UL_CLK_IPP_DI1] = of_clk_get_by_name(ccm_node, "ipp_di1"); + + np = of_find_compatible_node(NULL, NULL, "fsl,imx6ul-anatop"); + base = of_iomap(np, 0); + WARN_ON(!base); + + clks[IMX6UL_PLL1_BYPASS_SRC] = imx_clk_mux("pll1_bypass_src", base + 0x00, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6UL_PLL2_BYPASS_SRC] = imx_clk_mux("pll2_bypass_src", base + 0x30, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6UL_PLL3_BYPASS_SRC] = imx_clk_mux("pll3_bypass_src", base + 0x10, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6UL_PLL4_BYPASS_SRC] = imx_clk_mux("pll4_bypass_src", base + 0x70, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6UL_PLL5_BYPASS_SRC] = imx_clk_mux("pll5_bypass_src", base + 0xa0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6UL_PLL6_BYPASS_SRC] = imx_clk_mux("pll6_bypass_src", base + 0xe0, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + clks[IMX6UL_PLL7_BYPASS_SRC] = imx_clk_mux("pll7_bypass_src", base + 0x20, 14, 1, pll_bypass_src_sels, ARRAY_SIZE(pll_bypass_src_sels)); + + clks[IMX6UL_CLK_PLL1] = imx_clk_pllv3(IMX_PLLV3_SYS, "pll1", "pll1_bypass_src", base + 0x00, 0x7f); + clks[IMX6UL_CLK_PLL2] = imx_clk_pllv3(IMX_PLLV3_GENERIC, "pll2", "pll2_bypass_src", base + 0x30, 0x1); + clks[IMX6UL_CLK_PLL3] = imx_clk_pllv3(IMX_PLLV3_USB, "pll3", "pll3_bypass_src", base + 0x10, 0x3); + clks[IMX6UL_CLK_PLL4] = imx_clk_pllv3(IMX_PLLV3_AV, "pll4", "pll4_bypass_src", base + 0x70, 0x7f); + clks[IMX6UL_CLK_PLL5] = imx_clk_pllv3(IMX_PLLV3_AV, "pll5", "pll5_bypass_src", base + 0xa0, 0x7f); + clks[IMX6UL_CLK_PLL6] = imx_clk_pllv3(IMX_PLLV3_ENET, "pll6", "pll6_bypass_src", base + 0xe0, 0x3); + clks[IMX6UL_CLK_PLL7] = imx_clk_pllv3(IMX_PLLV3_USB, "pll7", "pll7_bypass_src", base + 0x20, 0x3); + + clks[IMX6UL_PLL1_BYPASS] = imx_clk_mux_flags("pll1_bypass", base + 0x00, 16, 1, pll1_bypass_sels, ARRAY_SIZE(pll1_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6UL_PLL2_BYPASS] = imx_clk_mux_flags("pll2_bypass", base + 0x30, 16, 1, pll2_bypass_sels, ARRAY_SIZE(pll2_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6UL_PLL3_BYPASS] = imx_clk_mux_flags("pll3_bypass", base + 0x10, 16, 1, pll3_bypass_sels, ARRAY_SIZE(pll3_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6UL_PLL4_BYPASS] = imx_clk_mux_flags("pll4_bypass", base + 0x70, 16, 1, pll4_bypass_sels, ARRAY_SIZE(pll4_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6UL_PLL5_BYPASS] = imx_clk_mux_flags("pll5_bypass", base + 0xa0, 16, 1, pll5_bypass_sels, ARRAY_SIZE(pll5_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6UL_PLL6_BYPASS] = imx_clk_mux_flags("pll6_bypass", base + 0xe0, 16, 1, pll6_bypass_sels, ARRAY_SIZE(pll6_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6UL_PLL7_BYPASS] = imx_clk_mux_flags("pll7_bypass", base + 0x20, 16, 1, pll7_bypass_sels, ARRAY_SIZE(pll7_bypass_sels), CLK_SET_RATE_PARENT); + clks[IMX6UL_CLK_CSI_SEL] = imx_clk_mux_flags("csi_sel", base + 0x3c, 9, 2, csi_sels, ARRAY_SIZE(csi_sels), CLK_SET_RATE_PARENT); + + /* Do not bypass PLLs initially */ + clk_set_parent(clks[IMX6UL_PLL1_BYPASS], clks[IMX6UL_CLK_PLL1]); + clk_set_parent(clks[IMX6UL_PLL2_BYPASS], clks[IMX6UL_CLK_PLL2]); + clk_set_parent(clks[IMX6UL_PLL3_BYPASS], clks[IMX6UL_CLK_PLL3]); + clk_set_parent(clks[IMX6UL_PLL4_BYPASS], clks[IMX6UL_CLK_PLL4]); + clk_set_parent(clks[IMX6UL_PLL5_BYPASS], clks[IMX6UL_CLK_PLL5]); + clk_set_parent(clks[IMX6UL_PLL6_BYPASS], clks[IMX6UL_CLK_PLL6]); + clk_set_parent(clks[IMX6UL_PLL7_BYPASS], clks[IMX6UL_CLK_PLL7]); + + clks[IMX6UL_CLK_PLL1_SYS] = imx_clk_fixed_factor("pll1_sys", "pll1_bypass", 1, 1); + clks[IMX6UL_CLK_PLL2_BUS] = imx_clk_gate("pll2_bus", "pll2_bypass", base + 0x30, 13); + clks[IMX6UL_CLK_PLL3_USB_OTG] = imx_clk_gate("pll3_usb_otg", "pll3_bypass", base + 0x10, 13); + clks[IMX6UL_CLK_PLL4_AUDIO] = imx_clk_gate("pll4_audio", "pll4_bypass", base + 0x70, 13); + clks[IMX6UL_CLK_PLL5_VIDEO] = imx_clk_gate("pll5_video", "pll5_bypass", base + 0xa0, 13); + clks[IMX6UL_CLK_PLL6_ENET] = imx_clk_gate("pll6_enet", "pll6_bypass", base + 0xe0, 13); + clks[IMX6UL_CLK_PLL7_USB_HOST] = imx_clk_gate("pll7_usb_host", "pll7_bypass", base + 0x20, 13); + + /* + * Bit 20 is the reserved and read-only bit, we do this only for: + * - Do nothing for usbphy clk_enable/disable + * - Keep refcount when do usbphy clk_enable/disable, in that case, + * the clk framework many need to enable/disable usbphy's parent + */ + clks[IMX6UL_CLK_USBPHY1] = imx_clk_gate("usbphy1", "pll3_usb_otg", base + 0x10, 20); + clks[IMX6UL_CLK_USBPHY2] = imx_clk_gate("usbphy2", "pll7_usb_host", base + 0x20, 20); + + /* + * usbphy*_gate needs to be on after system boots up, and software + * never needs to control it anymore. + */ + clks[IMX6UL_CLK_USBPHY1_GATE] = imx_clk_gate("usbphy1_gate", "dummy", base + 0x10, 6); + clks[IMX6UL_CLK_USBPHY2_GATE] = imx_clk_gate("usbphy2_gate", "dummy", base + 0x20, 6); + + /* name parent_name reg idx */ + clks[IMX6UL_CLK_PLL2_PFD0] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus", base + 0x100, 0); + clks[IMX6UL_CLK_PLL2_PFD1] = imx_clk_pfd("pll2_pfd1_594m", "pll2_bus", base + 0x100, 1); + clks[IMX6UL_CLK_PLL2_PFD2] = imx_clk_pfd("pll2_pfd2_396m", "pll2_bus", base + 0x100, 2); + clks[IMX6UL_CLK_PLL2_PFD3] = imx_clk_pfd("pll2_pfd3_594m", "pll2_bus", base + 0x100, 3); + clks[IMX6UL_CLK_PLL3_PFD0] = imx_clk_pfd("pll3_pfd0_720m", "pll3_usb_otg", base + 0xf0, 0); + clks[IMX6UL_CLK_PLL3_PFD1] = imx_clk_pfd("pll3_pfd1_540m", "pll3_usb_otg", base + 0xf0, 1); + clks[IMX6UL_CLK_PLL3_PFD2] = imx_clk_pfd("pll3_pfd2_508m", "pll3_usb_otg", base + 0xf0, 2); + clks[IMX6UL_CLK_PLL3_PFD3] = imx_clk_pfd("pll3_pfd3_454m", "pll3_usb_otg", base + 0xf0, 3); + + clks[IMX6UL_CLK_ENET_REF] = clk_register_divider_table(NULL, "enet_ref", "pll6_enet", 0, + base + 0xe0, 0, 2, 0, clk_enet_ref_table, &imx_ccm_lock); + clks[IMX6UL_CLK_ENET2_REF] = clk_register_divider_table(NULL, "enet2_ref", "pll6_enet", 0, + base + 0xe0, 2, 2, 0, clk_enet_ref_table, &imx_ccm_lock); + + clks[IMX6UL_CLK_ENET2_REF_125M] = imx_clk_gate("enet_ref_125m", "enet2_ref", base + 0xe0, 20); + clks[IMX6UL_CLK_ENET_PTP_REF] = imx_clk_fixed_factor("enet_ptp_ref", "pll6_enet", 1, 20); + clks[IMX6UL_CLK_ENET_PTP] = imx_clk_gate("enet_ptp", "enet_ptp_ref", base + 0xe0, 21); + + clks[IMX6UL_CLK_PLL4_POST_DIV] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", + CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock); + clks[IMX6UL_CLK_PLL4_AUDIO_DIV] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", + CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE, base + 0x170, 15, 1, 0, &imx_ccm_lock); + clks[IMX6UL_CLK_PLL5_POST_DIV] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", + CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock); + clks[IMX6UL_CLK_PLL5_VIDEO_DIV] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", + CLK_SET_RATE_PARENT | CLK_SET_RATE_GATE, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock); + + /* name parent_name mult div */ + clks[IMX6UL_CLK_PLL2_198M] = imx_clk_fixed_factor("pll2_198m", "pll2_pfd2_396m", 1, 2); + clks[IMX6UL_CLK_PLL3_80M] = imx_clk_fixed_factor("pll3_80m", "pll3_usb_otg", 1, 6); + clks[IMX6UL_CLK_PLL3_60M] = imx_clk_fixed_factor("pll3_60m", "pll3_usb_otg", 1, 8); + clks[IMX6UL_CLK_GPT_3M] = imx_clk_fixed_factor("gpt_3m", "osc", 1, 8); + + np = ccm_node; + base = of_iomap(np, 0); + WARN_ON(!base); + + clks[IMX6UL_CA7_SECONDARY_SEL] = imx_clk_mux("ca7_secondary_sel", base + 0xc, 3, 1, ca7_secondary_sels, ARRAY_SIZE(ca7_secondary_sels)); + clks[IMX6UL_CLK_STEP] = imx_clk_mux("step", base + 0x0c, 8, 1, step_sels, ARRAY_SIZE(step_sels)); + clks[IMX6UL_CLK_PLL1_SW] = imx_clk_mux_flags("pll1_sw", base + 0x0c, 2, 1, pll1_sw_sels, ARRAY_SIZE(pll1_sw_sels), 0); + clks[IMX6UL_CLK_AXI_ALT_SEL] = imx_clk_mux("axi_alt_sel", base + 0x14, 7, 1, axi_alt_sels, ARRAY_SIZE(axi_alt_sels)); + clks[IMX6UL_CLK_AXI_SEL] = imx_clk_mux_flags("axi_sel", base + 0x14, 6, 1, axi_sels, ARRAY_SIZE(axi_sels), 0); + clks[IMX6UL_CLK_PERIPH_PRE] = imx_clk_mux("periph_pre", base + 0x18, 18, 2, periph_pre_sels, ARRAY_SIZE(periph_pre_sels)); + clks[IMX6UL_CLK_PERIPH2_PRE] = imx_clk_mux("periph2_pre", base + 0x18, 21, 2, periph2_pre_sels, ARRAY_SIZE(periph2_pre_sels)); + clks[IMX6UL_CLK_PERIPH_CLK2_SEL] = imx_clk_mux("periph_clk2_sel", base + 0x18, 12, 2, periph_clk2_sels, ARRAY_SIZE(periph_clk2_sels)); + clks[IMX6UL_CLK_PERIPH2_CLK2_SEL] = imx_clk_mux("periph2_clk2_sel", base + 0x18, 20, 1, periph2_clk2_sels, ARRAY_SIZE(periph2_clk2_sels)); + clks[IMX6UL_CLK_EIM_SLOW_SEL] = imx_clk_mux("eim_slow_sel", base + 0x1c, 29, 2, eim_slow_sels, ARRAY_SIZE(eim_slow_sels)); + clks[IMX6UL_CLK_GPMI_SEL] = imx_clk_mux("gpmi_sel", base + 0x1c, 19, 1, gpmi_sels, ARRAY_SIZE(gpmi_sels)); + clks[IMX6UL_CLK_BCH_SEL] = imx_clk_mux("bch_sel", base + 0x1c, 18, 1, bch_sels, ARRAY_SIZE(bch_sels)); + clks[IMX6UL_CLK_USDHC2_SEL] = imx_clk_mux("usdhc2_sel", base + 0x1c, 17, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6UL_CLK_USDHC1_SEL] = imx_clk_mux("usdhc1_sel", base + 0x1c, 16, 1, usdhc_sels, ARRAY_SIZE(usdhc_sels)); + clks[IMX6UL_CLK_SAI3_SEL] = imx_clk_mux("sai3_sel", base + 0x1c, 14, 2, sai_sels, ARRAY_SIZE(sai_sels)); + clks[IMX6UL_CLK_SAI2_SEL] = imx_clk_mux("sai2_sel", base + 0x1c, 12, 2, sai_sels, ARRAY_SIZE(sai_sels)); + clks[IMX6UL_CLK_SAI1_SEL] = imx_clk_mux("sai1_sel", base + 0x1c, 10, 2, sai_sels, ARRAY_SIZE(sai_sels)); + clks[IMX6UL_CLK_QSPI1_SEL] = imx_clk_mux("qspi1_sel", base + 0x1c, 7, 3, qspi1_sels, ARRAY_SIZE(qspi1_sels)); + clks[IMX6UL_CLK_PERCLK_SEL] = imx_clk_mux("perclk_sel", base + 0x1c, 6, 1, perclk_sels, ARRAY_SIZE(perclk_sels)); + clks[IMX6UL_CLK_CAN_SEL] = imx_clk_mux("can_sel", base + 0x20, 8, 2, can_sels, ARRAY_SIZE(can_sels)); + clks[IMX6UL_CLK_UART_SEL] = imx_clk_mux("uart_sel", base + 0x24, 6, 1, uart_sels, ARRAY_SIZE(uart_sels)); + clks[IMX6UL_CLK_ENFC_SEL] = imx_clk_mux("enfc_sel", base + 0x2c, 15, 3, enfc_sels, ARRAY_SIZE(enfc_sels)); + clks[IMX6UL_CLK_LDB_DI0_SEL] = imx_clk_mux("ldb_di0_sel", base + 0x2c, 9, 3, ldb_di0_sels, ARRAY_SIZE(ldb_di0_sels)); + clks[IMX6UL_CLK_SPDIF_SEL] = imx_clk_mux("spdif_sel", base + 0x30, 20, 2, spdif_sels, ARRAY_SIZE(spdif_sels)); + clks[IMX6UL_CLK_SIM_PRE_SEL] = imx_clk_mux("sim_pre_sel", base + 0x34, 15, 3, sim_pre_sels, ARRAY_SIZE(sim_pre_sels)); + clks[IMX6UL_CLK_SIM_SEL] = imx_clk_mux("sim_sel", base + 0x34, 9, 3, sim_sels, ARRAY_SIZE(sim_sels)); + clks[IMX6UL_CLK_ECSPI_SEL] = imx_clk_mux("ecspi_sel", base + 0x38, 18, 1, ecspi_sels, ARRAY_SIZE(ecspi_sels)); + clks[IMX6UL_CLK_LCDIF_PRE_SEL] = imx_clk_mux("lcdif_pre_sel", base + 0x38, 15, 3, lcdif_pre_sels, ARRAY_SIZE(lcdif_pre_sels)); + clks[IMX6UL_CLK_LCDIF_SEL] = imx_clk_mux("lcdif_sel", base + 0x38, 9, 3, lcdif_sels, ARRAY_SIZE(lcdif_sels)); + + clks[IMX6UL_CLK_LDB_DI0_DIV_SEL] = imx_clk_mux("ldb_di0", base + 0x20, 10, 1, ldb_di0_div_sels, ARRAY_SIZE(ldb_di0_div_sels)); + clks[IMX6UL_CLK_LDB_DI1_DIV_SEL] = imx_clk_mux("ldb_di1", base + 0x20, 11, 1, ldb_di1_div_sels, ARRAY_SIZE(ldb_di1_div_sels)); + + clks[IMX6UL_CLK_LDB_DI0_DIV_3_5] = imx_clk_fixed_factor("ldb_di0_div_3_5", "ldb_di0_sel", 2, 7); + clks[IMX6UL_CLK_LDB_DI0_DIV_7] = imx_clk_fixed_factor("ldb_di0_div_7", "ldb_di0_sel", 1, 7); + clks[IMX6UL_CLK_LDB_DI1_DIV_3_5] = imx_clk_fixed_factor("ldb_di1_div_3_5", "qspi1_sel", 2, 7); + clks[IMX6UL_CLK_LDB_DI1_DIV_7] = imx_clk_fixed_factor("ldb_di1_div_7", "qspi1_sel", 1, 7); + + clks[IMX6UL_CLK_PERIPH] = imx_clk_busy_mux("periph", base + 0x14, 25, 1, base + 0x48, 5, periph_sels, ARRAY_SIZE(periph_sels)); + clks[IMX6UL_CLK_PERIPH2] = imx_clk_busy_mux("periph2", base + 0x14, 26, 1, base + 0x48, 3, periph2_sels, ARRAY_SIZE(periph2_sels)); + + clks[IMX6UL_CLK_PERIPH_CLK2] = imx_clk_divider("periph_clk2", "periph_clk2_sel", base + 0x14, 27, 3); + clks[IMX6UL_CLK_PERIPH2_CLK2] = imx_clk_divider("periph2_clk2", "periph2_clk2_sel", base + 0x14, 0, 3); + clks[IMX6UL_CLK_IPG] = imx_clk_divider("ipg", "ahb", base + 0x14, 8, 2); + clks[IMX6UL_CLK_LCDIF_PODF] = imx_clk_divider("lcdif_podf", "lcdif_pred", base + 0x18, 23, 3); + clks[IMX6UL_CLK_QSPI1_PDOF] = imx_clk_divider("qspi1_podf", "qspi1_sel", base + 0x1c, 26, 3); + clks[IMX6UL_CLK_EIM_SLOW_PODF] = imx_clk_divider("eim_slow_podf", "eim_slow_sel", base + 0x1c, 23, 3); + clks[IMX6UL_CLK_PERCLK] = imx_clk_divider("perclk", "perclk_sel", base + 0x1c, 0, 6); + clks[IMX6UL_CLK_CAN_PODF] = imx_clk_divider("can_podf", "can_sel", base + 0x20, 2, 6); + clks[IMX6UL_CLK_GPMI_PODF] = imx_clk_divider("gpmi_podf", "gpmi_sel", base + 0x24, 22, 3); + clks[IMX6UL_CLK_BCH_PODF] = imx_clk_divider("bch_podf", "bch_sel", base + 0x24, 19, 3); + clks[IMX6UL_CLK_USDHC2_PODF] = imx_clk_divider("usdhc2_podf", "usdhc2_sel", base + 0x24, 16, 3); + clks[IMX6UL_CLK_USDHC1_PODF] = imx_clk_divider("usdhc1_podf", "usdhc1_sel", base + 0x24, 11, 3); + clks[IMX6UL_CLK_UART_PODF] = imx_clk_divider("uart_podf", "uart_sel", base + 0x24, 0, 6); + clks[IMX6UL_CLK_SAI3_PRED] = imx_clk_divider("sai3_pred", "sai3_sel", base + 0x28, 22, 3); + clks[IMX6UL_CLK_SAI3_PODF] = imx_clk_divider("sai3_podf", "sai3_pred", base + 0x28, 16, 6); + clks[IMX6UL_CLK_SAI1_PRED] = imx_clk_divider("sai1_pred", "sai1_sel", base + 0x28, 6, 3); + clks[IMX6UL_CLK_SAI1_PODF] = imx_clk_divider("sai1_podf", "sai1_pred", base + 0x28, 0, 6); + clks[IMX6UL_CLK_ENFC_PRED] = imx_clk_divider("enfc_pred", "enfc_sel", base + 0x2c, 18, 3); + clks[IMX6UL_CLK_ENFC_PODF] = imx_clk_divider("enfc_podf", "enfc_pred", base + 0x2c, 21, 6); + clks[IMX6UL_CLK_SAI2_PRED] = imx_clk_divider("sai2_pred", "sai2_sel", base + 0x2c, 6, 3); + clks[IMX6UL_CLK_SAI2_PODF] = imx_clk_divider("sai2_podf", "sai2_pred", base + 0x2c, 0, 6); + clks[IMX6UL_CLK_SPDIF_PRED] = imx_clk_divider("spdif_pred", "spdif_sel", base + 0x30, 25, 3); + clks[IMX6UL_CLK_SPDIF_PODF] = imx_clk_divider("spdif_podf", "spdif_pred", base + 0x30, 22, 3); + clks[IMX6UL_CLK_SIM_PODF] = imx_clk_divider("sim_podf", "sim_pre_sel", base + 0x34, 12, 3); + clks[IMX6UL_CLK_ECSPI_PODF] = imx_clk_divider("ecspi_podf", "ecspi_sel", base + 0x38, 19, 6); + clks[IMX6UL_CLK_LCDIF_PRED] = imx_clk_divider("lcdif_pred", "lcdif_pre_sel", base + 0x38, 12, 3); + clks[IMX6UL_CLK_CSI_PODF] = imx_clk_divider("csi_podf", "csi_sel", base + 0x3c, 11, 3); + + clks[IMX6UL_CLK_ARM] = imx_clk_busy_divider("arm", "pll1_sw", base + 0x10, 0, 3, base + 0x48, 16); + clks[IMX6UL_CLK_MMDC_PODF] = imx_clk_busy_divider("mmdc_podf", "periph2", base + 0x14, 3, 3, base + 0x48, 2); + clks[IMX6UL_CLK_AXI_PODF] = imx_clk_busy_divider("axi_podf", "axi_sel", base + 0x14, 16, 3, base + 0x48, 0); + clks[IMX6UL_CLK_AHB] = imx_clk_busy_divider("ahb", "periph", base + 0x14, 10, 3, base + 0x48, 1); + + /* CCGR0 */ + clks[IMX6UL_CLK_AIPSTZ1] = imx_clk_gate2("aips_tz1", "ahb", base + 0x68, 0); + clks[IMX6UL_CLK_AIPSTZ2] = imx_clk_gate2("aips_tz2", "ahb", base + 0x68, 2); + clks[IMX6UL_CLK_APBHDMA] = imx_clk_gate2("apbh_dma", "bch_podf", base + 0x68, 4); + clks[IMX6UL_CLK_ASRC_IPG] = imx_clk_gate2_shared("asrc_ipg", "ahb", base + 0x68, 6, &share_count_asrc); + clks[IMX6UL_CLK_ASRC_MEM] = imx_clk_gate2_shared("asrc_mem", "ahb", base + 0x68, 6, &share_count_asrc); + clks[IMX6UL_CLK_CAAM_MEM] = imx_clk_gate2("caam_mem", "ahb", base + 0x68, 8); + clks[IMX6UL_CLK_CAAM_ACLK] = imx_clk_gate2("caam_aclk", "ahb", base + 0x68, 10); + clks[IMX6UL_CLK_CAAM_IPG] = imx_clk_gate2("caam_ipg", "ipg", base + 0x68, 12); + clks[IMX6UL_CLK_CAN1_IPG] = imx_clk_gate2("can1_ipg", "ipg", base + 0x68, 14); + clks[IMX6UL_CLK_CAN1_SERIAL] = imx_clk_gate2("can1_serial", "can_podf", base + 0x68, 16); + clks[IMX6UL_CLK_CAN2_IPG] = imx_clk_gate2("can2_ipg", "ipg", base + 0x68, 18); + clks[IMX6UL_CLK_CAN2_SERIAL] = imx_clk_gate2("can2_serial", "can_podf", base + 0x68, 20); + clks[IMX6UL_CLK_GPT2_BUS] = imx_clk_gate2("gpt_bus", "perclk", base + 0x68, 24); + clks[IMX6UL_CLK_GPT2_SERIAL] = imx_clk_gate2("gpt_serial", "perclk", base + 0x68, 26); + clks[IMX6UL_CLK_UART2_IPG] = imx_clk_gate2("uart2_ipg", "ipg", base + 0x68, 28); + clks[IMX6UL_CLK_UART2_SERIAL] = imx_clk_gate2("uart2_serial", "uart_podf", base + 0x68, 28); + clks[IMX6UL_CLK_AIPSTZ3] = imx_clk_gate2("aips_tz3", "ahb", base + 0x68, 30); + + /* CCGR1 */ + clks[IMX6UL_CLK_ECSPI1] = imx_clk_gate2("ecspi1", "ecspi_podf", base + 0x6c, 0); + clks[IMX6UL_CLK_ECSPI2] = imx_clk_gate2("ecspi2", "ecspi_podf", base + 0x6c, 2); + clks[IMX6UL_CLK_ECSPI3] = imx_clk_gate2("ecspi3", "ecspi_podf", base + 0x6c, 4); + clks[IMX6UL_CLK_ECSPI4] = imx_clk_gate2("ecspi4", "ecspi_podf", base + 0x6c, 6); + clks[IMX6UL_CLK_ADC2] = imx_clk_gate2("adc2", "ipg", base + 0x6c, 8); + clks[IMX6UL_CLK_UART3_IPG] = imx_clk_gate2("uart3_ipg", "ipg", base + 0x6c, 10); + clks[IMX6UL_CLK_UART3_SERIAL] = imx_clk_gate2("uart3_serial", "uart_podf", base + 0x6c, 10); + clks[IMX6UL_CLK_EPIT1] = imx_clk_gate2("epit1", "perclk", base + 0x6c, 12); + clks[IMX6UL_CLK_EPIT2] = imx_clk_gate2("epit2", "perclk", base + 0x6c, 14); + clks[IMX6UL_CLK_ADC1] = imx_clk_gate2("adc1", "ipg", base + 0x6c, 16); + clks[IMX6UL_CLK_GPT1_BUS] = imx_clk_gate2("gpt1_bus", "perclk", base + 0x6c, 20); + clks[IMX6UL_CLK_GPT1_SERIAL] = imx_clk_gate2("gpt1_serial", "perclk", base + 0x6c, 22); + clks[IMX6UL_CLK_UART4_IPG] = imx_clk_gate2("uart4_ipg", "ipg", base + 0x6c, 24); + clks[IMX6UL_CLK_UART4_SERIAL] = imx_clk_gate2("uart4_serail", "uart_podf", base + 0x6c, 24); + + /* CCGR2 */ + clks[IMX6UL_CLK_CSI] = imx_clk_gate2("csi", "csi_podf", base + 0x70, 2); + clks[IMX6UL_CLK_I2C1] = imx_clk_gate2("i2c1", "perclk", base + 0x70, 6); + clks[IMX6UL_CLK_I2C2] = imx_clk_gate2("i2c2", "perclk", base + 0x70, 8); + clks[IMX6UL_CLK_I2C3] = imx_clk_gate2("i2c3", "perclk", base + 0x70, 10); + clks[IMX6UL_CLK_OCOTP] = imx_clk_gate2("ocotp", "ipg", base + 0x70, 12); + clks[IMX6UL_CLK_IOMUXC] = imx_clk_gate2("iomuxc", "lcdif_podf", base + 0x70, 14); + clks[IMX6UL_CLK_LCDIF_APB] = imx_clk_gate2("lcdif_apb", "axi", base + 0x70, 28); + clks[IMX6UL_CLK_PXP] = imx_clk_gate2("pxp", "axi", base + 0x70, 30); + + /* CCGR3 */ + clks[IMX6UL_CLK_UART5_IPG] = imx_clk_gate2("uart5_ipg", "ipg", base + 0x74, 2); + clks[IMX6UL_CLK_UART5_SERIAL] = imx_clk_gate2("uart5_serial", "uart_podf", base + 0x74, 2); + clks[IMX6UL_CLK_ENET] = imx_clk_gate2("enet", "ipg", base + 0x74, 4); + clks[IMX6UL_CLK_ENET_AHB] = imx_clk_gate2("enet_ahb", "ahb", base + 0x74, 4); + clks[IMX6UL_CLK_UART6_IPG] = imx_clk_gate2("uart6_ipg", "ipg", base + 0x74, 6); + clks[IMX6UL_CLK_UART6_SERIAL] = imx_clk_gate2("uart6_serial", "uart_podf", base + 0x74, 6); + clks[IMX6UL_CLK_LCDIF_PIX] = imx_clk_gate2("lcdif_pix", "lcdif_podf", base + 0x74, 10); + clks[IMX6UL_CLK_QSPI] = imx_clk_gate2("qspi1", "qspi1_podf", base + 0x74, 14); + clks[IMX6UL_CLK_WDOG1] = imx_clk_gate2("wdog1", "ipg", base + 0x74, 16); + clks[IMX6UL_CLK_MMDC_P0_FAST] = imx_clk_gate("mmdc_p0_fast", "mmdc_podf", base + 0x74, 20); + clks[IMX6UL_CLK_MMDC_P0_IPG] = imx_clk_gate2("mmdc_p0_ipg", "ipg", base + 0x74, 24); + clks[IMX6UL_CLK_AXI] = imx_clk_gate("axi", "axi_podf", base + 0x74, 28); + + /* CCGR4 */ + clks[IMX6UL_CLK_PER_BCH] = imx_clk_gate2("per_bch", "bch_podf", base + 0x78, 12); + clks[IMX6UL_CLK_PWM1] = imx_clk_gate2("pwm1", "perclk", base + 0x78, 16); + clks[IMX6UL_CLK_PWM2] = imx_clk_gate2("pwm2", "perclk", base + 0x78, 18); + clks[IMX6UL_CLK_PWM3] = imx_clk_gate2("pwm3", "perclk", base + 0x78, 20); + clks[IMX6UL_CLK_PWM4] = imx_clk_gate2("pwm4", "perclk", base + 0x78, 22); + clks[IMX6UL_CLK_GPMI_BCH_APB] = imx_clk_gate2("gpmi_bch_apb", "bch_podf", base + 0x78, 24); + clks[IMX6UL_CLK_GPMI_BCH] = imx_clk_gate2("gpmi_bch", "gpmi_podf", base + 0x78, 26); + clks[IMX6UL_CLK_GPMI_IO] = imx_clk_gate2("gpmi_io", "enfc_podf", base + 0x78, 28); + clks[IMX6UL_CLK_GPMI_APB] = imx_clk_gate2("gpmi_apb", "bch_podf", base + 0x78, 30); + + /* CCGR5 */ + clks[IMX6UL_CLK_ROM] = imx_clk_gate2("rom", "ahb", base + 0x7c, 0); + clks[IMX6UL_CLK_SDMA] = imx_clk_gate2("sdma", "ahb", base + 0x7c, 6); + clks[IMX6UL_CLK_WDOG2] = imx_clk_gate2("wdog2", "ipg", base + 0x7c, 10); + clks[IMX6UL_CLK_SPBA] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12); + clks[IMX6UL_CLK_SPDIF] = imx_clk_gate2_shared("spdif", "spdif_podf", base + 0x7c, 14, &share_count_audio); + clks[IMX6UL_CLK_SPDIF_GCLK] = imx_clk_gate2_shared("spdif_gclk", "ipg", base + 0x7c, 14, &share_count_audio); + clks[IMX6UL_CLK_SAI3] = imx_clk_gate2_shared("sai3", "sai3_podf", base + 0x7c, 22, &share_count_sai3); + clks[IMX6UL_CLK_SAI3_IPG] = imx_clk_gate2_shared("sai3_ipg", "ipg", base + 0x7c, 22, &share_count_sai3); + clks[IMX6UL_CLK_UART1_IPG] = imx_clk_gate2("uart1_ipg", "ipg", base + 0x7c, 24); + clks[IMX6UL_CLK_UART1_SERIAL] = imx_clk_gate2("uart1_serial", "uart_podf", base + 0x7c, 24); + clks[IMX6UL_CLK_UART7_IPG] = imx_clk_gate2("uart7_ipg", "ipg", base + 0x7c, 26); + clks[IMX6UL_CLK_UART7_SERIAL] = imx_clk_gate2("uart7_serial", "uart_podf", base + 0x7c, 26); + clks[IMX6UL_CLK_SAI1] = imx_clk_gate2_shared("sai1", "sai1_podf", base + 0x7c, 28, &share_count_sai1); + clks[IMX6UL_CLK_SAI1_IPG] = imx_clk_gate2_shared("sai1_ipg", "ipg", base + 0x7c, 28, &share_count_sai1); + clks[IMX6UL_CLK_SAI2] = imx_clk_gate2_shared("sai2", "sai2_podf", base + 0x7c, 30, &share_count_sai2); + clks[IMX6UL_CLK_SAI2_IPG] = imx_clk_gate2_shared("sai2_ipg", "ipg", base + 0x7c, 30, &share_count_sai2); + + /* CCGR6 */ + clks[IMX6UL_CLK_USBOH3] = imx_clk_gate2("usboh3", "ipg", base + 0x80, 0); + clks[IMX6UL_CLK_USDHC1] = imx_clk_gate2("usdhc1", "usdhc1_podf", base + 0x80, 2); + clks[IMX6UL_CLK_USDHC2] = imx_clk_gate2("usdhc2", "usdhc2_podf", base + 0x80, 4); + clks[IMX6UL_CLK_SIM1] = imx_clk_gate2("sim1", "sim_sel", base + 0x80, 6); + clks[IMX6UL_CLK_SIM2] = imx_clk_gate2("sim2", "sim_sel", base + 0x80, 8); + clks[IMX6UL_CLK_EIM] = imx_clk_gate2("eim", "eim_slow_podf", base + 0x80, 10); + clks[IMX6UL_CLK_PWM8] = imx_clk_gate2("pwm8", "perclk", base + 0x80, 16); + clks[IMX6UL_CLK_UART8_IPG] = imx_clk_gate2("uart8_ipg", "ipg", base + 0x80, 14); + clks[IMX6UL_CLK_UART8_SERIAL] = imx_clk_gate2("uart8_serial", "uart_podf", base + 0x80, 14); + clks[IMX6UL_CLK_WDOG3] = imx_clk_gate2("wdog3", "ipg", base + 0x80, 20); + clks[IMX6UL_CLK_I2C4] = imx_clk_gate2("i2c4", "perclk", base + 0x80, 24); + clks[IMX6UL_CLK_PWM5] = imx_clk_gate2("pwm5", "perclk", base + 0x80, 26); + clks[IMX6UL_CLK_PWM6] = imx_clk_gate2("pwm6", "perclk", base + 0x80, 28); + clks[IMX6UL_CLK_PWM7] = imx_clk_gate2("Pwm7", "perclk", base + 0x80, 30); + + /* mask handshake of mmdc */ + writel_relaxed(BM_CCM_CCDR_MMDC_CH0_MASK, base + CCDR); + + for (i = 0; i < ARRAY_SIZE(clks); i++) + if (IS_ERR(clks[i])) + pr_err("i.MX6UL clk %d: register failed with %ld\n", i, PTR_ERR(clks[i])); + + clk_data.clks = clks; + clk_data.clk_num = ARRAY_SIZE(clks); + of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); + + /* set perclk to from OSC */ + clk_set_parent(clks[IMX6UL_CLK_PERCLK_SEL], clks[IMX6UL_CLK_OSC]); + + clk_set_rate(clks[IMX6UL_CLK_ENET_REF], 50000000); + clk_set_rate(clks[IMX6UL_CLK_ENET2_REF], 50000000); + clk_set_rate(clks[IMX6UL_CLK_CSI], 24000000); + + /* keep all the clks on just for bringup */ + for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) + clk_prepare_enable(clks[clks_init_on[i]]); + + if (IS_ENABLED(CONFIG_USB_MXS_PHY)) { + clk_prepare_enable(clks[IMX6UL_CLK_USBPHY1_GATE]); + clk_prepare_enable(clks[IMX6UL_CLK_USBPHY2_GATE]); + } + + clk_set_parent(clks[IMX6UL_CLK_CAN_SEL], clks[IMX6UL_CLK_PLL3_60M]); + clk_set_parent(clks[IMX6UL_CLK_SIM_PRE_SEL], clks[IMX6UL_CLK_PLL3_USB_OTG]); + + clk_set_parent(clks[IMX6UL_CLK_ENFC_SEL], clks[IMX6UL_CLK_PLL2_PFD2]); +} + +CLK_OF_DECLARE(imx6ul, "fsl,imx6ul-ccm", imx6ul_clocks_init); diff --git a/drivers/clk/imx/clk-pfd.c b/drivers/clk/imx/clk-pfd.c index 0b0f6f66ec56..04a3e78ea1bc 100644 --- a/drivers/clk/imx/clk-pfd.c +++ b/drivers/clk/imx/clk-pfd.c @@ -10,7 +10,6 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/slab.h> diff --git a/drivers/clk/imx/clk-pllv1.c b/drivers/clk/imx/clk-pllv1.c index c34ad8a611dd..8564e4342c7d 100644 --- a/drivers/clk/imx/clk-pllv1.c +++ b/drivers/clk/imx/clk-pllv1.c @@ -1,4 +1,3 @@ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/slab.h> diff --git a/drivers/clk/imx/clk-pllv3.c b/drivers/clk/imx/clk-pllv3.c index f0d15fb9d783..6addf8f58b97 100644 --- a/drivers/clk/imx/clk-pllv3.c +++ b/drivers/clk/imx/clk-pllv3.c @@ -10,7 +10,6 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/io.h> diff --git a/drivers/clk/ingenic/cgu.c b/drivers/clk/ingenic/cgu.c index b936cdd1a13c..7cfb7b2a2ed6 100644 --- a/drivers/clk/ingenic/cgu.c +++ b/drivers/clk/ingenic/cgu.c @@ -16,6 +16,7 @@ */ #include <linux/bitops.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/delay.h> diff --git a/drivers/clk/keystone/gate.c b/drivers/clk/keystone/gate.c index 86f1e362eafb..aed5af23895b 100644 --- a/drivers/clk/keystone/gate.c +++ b/drivers/clk/keystone/gate.c @@ -10,7 +10,6 @@ * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/io.h> diff --git a/drivers/clk/keystone/pll.c b/drivers/clk/keystone/pll.c index 4a375ead70e9..3f553d0ae0b5 100644 --- a/drivers/clk/keystone/pll.c +++ b/drivers/clk/keystone/pll.c @@ -10,7 +10,6 @@ * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/io.h> @@ -309,8 +308,7 @@ static void __init of_pll_mux_clk_init(struct device_node *node) return; } - parents[0] = of_clk_get_parent_name(node, 0); - parents[1] = of_clk_get_parent_name(node, 1); + of_clk_parent_fill(node, parents, 2); if (!parents[0] || !parents[1]) { pr_err("%s: missing parent clocks\n", __func__); return; diff --git a/drivers/clk/mediatek/clk-gate.h b/drivers/clk/mediatek/clk-gate.h index 6b6780b1e9c5..11e25c992948 100644 --- a/drivers/clk/mediatek/clk-gate.h +++ b/drivers/clk/mediatek/clk-gate.h @@ -16,9 +16,10 @@ #define __DRV_CLK_GATE_H #include <linux/regmap.h> -#include <linux/clk.h> #include <linux/clk-provider.h> +struct clk; + struct mtk_clk_gate { struct clk_hw hw; struct regmap *regmap; diff --git a/drivers/clk/mediatek/clk-mt8135.c b/drivers/clk/mediatek/clk-mt8135.c index 08b4b849b491..07c21e44b4b3 100644 --- a/drivers/clk/mediatek/clk-mt8135.c +++ b/drivers/clk/mediatek/clk-mt8135.c @@ -12,6 +12,7 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/slab.h> diff --git a/drivers/clk/mediatek/clk-mt8173.c b/drivers/clk/mediatek/clk-mt8173.c index 8b6523d15fb8..90eff85f4285 100644 --- a/drivers/clk/mediatek/clk-mt8173.c +++ b/drivers/clk/mediatek/clk-mt8173.c @@ -12,6 +12,7 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/slab.h> @@ -795,8 +796,9 @@ CLK_OF_DECLARE(mtk_pericfg, "mediatek,mt8173-pericfg", mtk_pericfg_init); #define CON0_MT8173_RST_BAR BIT(24) -#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, _pd_reg, _pd_shift, \ - _tuner_reg, _pcw_reg, _pcw_shift) { \ +#define PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \ + _pd_reg, _pd_shift, _tuner_reg, _pcw_reg, \ + _pcw_shift, _div_table) { \ .id = _id, \ .name = _name, \ .reg = _reg, \ @@ -811,14 +813,31 @@ CLK_OF_DECLARE(mtk_pericfg, "mediatek,mt8173-pericfg", mtk_pericfg_init); .tuner_reg = _tuner_reg, \ .pcw_reg = _pcw_reg, \ .pcw_shift = _pcw_shift, \ + .div_table = _div_table, \ } +#define PLL(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \ + _pd_reg, _pd_shift, _tuner_reg, _pcw_reg, \ + _pcw_shift) \ + PLL_B(_id, _name, _reg, _pwr_reg, _en_mask, _flags, _pcwbits, \ + _pd_reg, _pd_shift, _tuner_reg, _pcw_reg, _pcw_shift, \ + NULL) + +static const struct mtk_pll_div_table mmpll_div_table[] = { + { .div = 0, .freq = MT8173_PLL_FMAX }, + { .div = 1, .freq = 1000000000 }, + { .div = 2, .freq = 702000000 }, + { .div = 3, .freq = 253500000 }, + { .div = 4, .freq = 126750000 }, + { } /* sentinel */ +}; + static const struct mtk_pll_data plls[] = { PLL(CLK_APMIXED_ARMCA15PLL, "armca15pll", 0x200, 0x20c, 0x00000001, 0, 21, 0x204, 24, 0x0, 0x204, 0), PLL(CLK_APMIXED_ARMCA7PLL, "armca7pll", 0x210, 0x21c, 0x00000001, 0, 21, 0x214, 24, 0x0, 0x214, 0), PLL(CLK_APMIXED_MAINPLL, "mainpll", 0x220, 0x22c, 0xf0000101, HAVE_RST_BAR, 21, 0x220, 4, 0x0, 0x224, 0), PLL(CLK_APMIXED_UNIVPLL, "univpll", 0x230, 0x23c, 0xfe000001, HAVE_RST_BAR, 7, 0x230, 4, 0x0, 0x234, 14), - PLL(CLK_APMIXED_MMPLL, "mmpll", 0x240, 0x24c, 0x00000001, 0, 21, 0x244, 24, 0x0, 0x244, 0), + PLL_B(CLK_APMIXED_MMPLL, "mmpll", 0x240, 0x24c, 0x00000001, 0, 21, 0x244, 24, 0x0, 0x244, 0, mmpll_div_table), PLL(CLK_APMIXED_MSDCPLL, "msdcpll", 0x250, 0x25c, 0x00000001, 0, 21, 0x250, 4, 0x0, 0x254, 0), PLL(CLK_APMIXED_VENCPLL, "vencpll", 0x260, 0x26c, 0x00000001, 0, 21, 0x260, 4, 0x0, 0x264, 0), PLL(CLK_APMIXED_TVDPLL, "tvdpll", 0x270, 0x27c, 0x00000001, 0, 21, 0x270, 4, 0x0, 0x274, 0), diff --git a/drivers/clk/mediatek/clk-mtk.h b/drivers/clk/mediatek/clk-mtk.h index 9dda9d8ad10b..c5cbecb3d218 100644 --- a/drivers/clk/mediatek/clk-mtk.h +++ b/drivers/clk/mediatek/clk-mtk.h @@ -17,9 +17,10 @@ #include <linux/regmap.h> #include <linux/bitops.h> -#include <linux/clk.h> #include <linux/clk-provider.h> +struct clk; + #define MAX_MUX_GATE_BIT 31 #define INVALID_MUX_GATE_BIT (MAX_MUX_GATE_BIT + 1) @@ -134,6 +135,11 @@ struct clk_onecell_data *mtk_alloc_clk_data(unsigned int clk_num); #define HAVE_RST_BAR BIT(0) +struct mtk_pll_div_table { + u32 div; + unsigned long freq; +}; + struct mtk_pll_data { int id; const char *name; @@ -150,6 +156,7 @@ struct mtk_pll_data { int pcwbits; uint32_t pcw_reg; int pcw_shift; + const struct mtk_pll_div_table *div_table; }; void __init mtk_clk_register_plls(struct device_node *node, diff --git a/drivers/clk/mediatek/clk-pll.c b/drivers/clk/mediatek/clk-pll.c index 44409e98c52f..622e7b6c62b4 100644 --- a/drivers/clk/mediatek/clk-pll.c +++ b/drivers/clk/mediatek/clk-pll.c @@ -90,20 +90,23 @@ static unsigned long __mtk_pll_recalc_rate(struct mtk_clk_pll *pll, u32 fin, static void mtk_pll_set_rate_regs(struct mtk_clk_pll *pll, u32 pcw, int postdiv) { - u32 con1, pd, val; + u32 con1, val; int pll_en; - /* set postdiv */ - pd = readl(pll->pd_addr); - pd &= ~(POSTDIV_MASK << pll->data->pd_shift); - pd |= (ffs(postdiv) - 1) << pll->data->pd_shift; - writel(pd, pll->pd_addr); - pll_en = readl(pll->base_addr + REG_CON0) & CON0_BASE_EN; - /* set pcw */ - val = readl(pll->pcw_addr); + /* set postdiv */ + val = readl(pll->pd_addr); + val &= ~(POSTDIV_MASK << pll->data->pd_shift); + val |= (ffs(postdiv) - 1) << pll->data->pd_shift; + + /* postdiv and pcw need to set at the same time if on same register */ + if (pll->pd_addr != pll->pcw_addr) { + writel(val, pll->pd_addr); + val = readl(pll->pcw_addr); + } + /* set pcw */ val &= ~GENMASK(pll->data->pcw_shift + pll->data->pcwbits - 1, pll->data->pcw_shift); val |= pcw << pll->data->pcw_shift; @@ -135,16 +138,28 @@ static void mtk_pll_calc_values(struct mtk_clk_pll *pll, u32 *pcw, u32 *postdiv, u32 freq, u32 fin) { unsigned long fmin = 1000 * MHZ; + const struct mtk_pll_div_table *div_table = pll->data->div_table; u64 _pcw; u32 val; if (freq > pll->data->fmax) freq = pll->data->fmax; - for (val = 0; val < 4; val++) { + if (div_table) { + if (freq > div_table[0].freq) + freq = div_table[0].freq; + + for (val = 0; div_table[val + 1].freq != 0; val++) { + if (freq > div_table[val + 1].freq) + break; + } *postdiv = 1 << val; - if (freq * *postdiv >= fmin) - break; + } else { + for (val = 0; val < 5; val++) { + *postdiv = 1 << val; + if ((u64)freq * *postdiv >= fmin) + break; + } } /* _pcw = freq * postdiv / fin * 2^pcwfbits */ diff --git a/drivers/clk/meson/clk-cpu.c b/drivers/clk/meson/clk-cpu.c index 71ad493b94df..f7c30ea54ca8 100644 --- a/drivers/clk/meson/clk-cpu.c +++ b/drivers/clk/meson/clk-cpu.c @@ -35,6 +35,7 @@ #include <linux/module.h> #include <linux/of_address.h> #include <linux/slab.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #define MESON_CPU_CLK_CNTL1 0x00 diff --git a/drivers/clk/meson/clkc.c b/drivers/clk/meson/clkc.c index b8c511c5e7a7..c83ae1367abc 100644 --- a/drivers/clk/meson/clkc.c +++ b/drivers/clk/meson/clkc.c @@ -15,7 +15,6 @@ * this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/mfd/syscon.h> #include <linux/slab.h> diff --git a/drivers/clk/mmp/clk-apbc.c b/drivers/clk/mmp/clk-apbc.c index 09d41c717c52..4c717db05f2d 100644 --- a/drivers/clk/mmp/clk-apbc.c +++ b/drivers/clk/mmp/clk-apbc.c @@ -10,7 +10,6 @@ */ #include <linux/kernel.h> -#include <linux/clk.h> #include <linux/io.h> #include <linux/err.h> #include <linux/delay.h> diff --git a/drivers/clk/mmp/clk-apmu.c b/drivers/clk/mmp/clk-apmu.c index cdcf2d7f321e..47b5542ce50f 100644 --- a/drivers/clk/mmp/clk-apmu.c +++ b/drivers/clk/mmp/clk-apmu.c @@ -10,7 +10,6 @@ */ #include <linux/kernel.h> -#include <linux/clk.h> #include <linux/io.h> #include <linux/err.h> #include <linux/delay.h> diff --git a/drivers/clk/mmp/clk-gate.c b/drivers/clk/mmp/clk-gate.c index adbd9d64ded2..d20cd3431ac2 100644 --- a/drivers/clk/mmp/clk-gate.c +++ b/drivers/clk/mmp/clk-gate.c @@ -27,7 +27,6 @@ static int mmp_clk_gate_enable(struct clk_hw *hw) { struct mmp_clk_gate *gate = to_clk_mmp_gate(hw); - struct clk *clk = hw->clk; unsigned long flags = 0; unsigned long rate; u32 tmp; @@ -44,7 +43,7 @@ static int mmp_clk_gate_enable(struct clk_hw *hw) spin_unlock_irqrestore(gate->lock, flags); if (gate->flags & MMP_CLK_GATE_NEED_DELAY) { - rate = __clk_get_rate(clk); + rate = clk_hw_get_rate(hw); /* Need delay 2 cycles. */ udelay(2000000/rate); } diff --git a/drivers/clk/mmp/clk-mix.c b/drivers/clk/mmp/clk-mix.c index de6a873175d2..c554833cffc5 100644 --- a/drivers/clk/mmp/clk-mix.c +++ b/drivers/clk/mmp/clk-mix.c @@ -63,7 +63,7 @@ static unsigned int _get_div(struct mmp_clk_mix *mix, unsigned int val) static unsigned int _get_mux(struct mmp_clk_mix *mix, unsigned int val) { - int num_parents = __clk_get_num_parents(mix->hw.clk); + int num_parents = clk_hw_get_num_parents(&mix->hw); int i; if (mix->mux_flags & CLK_MUX_INDEX_BIT) @@ -113,15 +113,15 @@ static void _filter_clk_table(struct mmp_clk_mix *mix, { int i; struct mmp_clk_mix_clk_table *item; - struct clk *parent, *clk; + struct clk_hw *parent, *hw; unsigned long parent_rate; - clk = mix->hw.clk; + hw = &mix->hw; for (i = 0; i < table_size; i++) { item = &table[i]; - parent = clk_get_parent_by_index(clk, item->parent_index); - parent_rate = __clk_get_rate(parent); + parent = clk_hw_get_parent_by_index(hw, item->parent_index); + parent_rate = clk_hw_get_rate(parent); if (parent_rate % item->rate) { item->valid = 0; } else { @@ -181,7 +181,7 @@ static int _set_rate(struct mmp_clk_mix *mix, u32 mux_val, u32 div_val, if (timeout == 0) { pr_err("%s:%s cannot do frequency change\n", - __func__, __clk_get_name(mix->hw.clk)); + __func__, clk_hw_get_name(&mix->hw)); ret = -EBUSY; goto error; } @@ -201,27 +201,22 @@ error: return ret; } -static long mmp_clk_mix_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk) +static int mmp_clk_mix_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct mmp_clk_mix *mix = to_clk_mix(hw); struct mmp_clk_mix_clk_table *item; - struct clk *parent, *parent_best, *mix_clk; + struct clk_hw *parent, *parent_best; unsigned long parent_rate, mix_rate, mix_rate_best, parent_rate_best; unsigned long gap, gap_best; u32 div_val_max; unsigned int div; int i, j; - mix_clk = hw->clk; - parent = NULL; mix_rate_best = 0; parent_rate_best = 0; - gap_best = rate; + gap_best = ULONG_MAX; parent_best = NULL; if (mix->table) { @@ -229,11 +224,11 @@ static long mmp_clk_mix_determine_rate(struct clk_hw *hw, unsigned long rate, item = &mix->table[i]; if (item->valid == 0) continue; - parent = clk_get_parent_by_index(mix_clk, + parent = clk_hw_get_parent_by_index(hw, item->parent_index); - parent_rate = __clk_get_rate(parent); + parent_rate = clk_hw_get_rate(parent); mix_rate = parent_rate / item->divisor; - gap = abs(mix_rate - rate); + gap = abs(mix_rate - req->rate); if (parent_best == NULL || gap < gap_best) { parent_best = parent; parent_rate_best = parent_rate; @@ -244,14 +239,14 @@ static long mmp_clk_mix_determine_rate(struct clk_hw *hw, unsigned long rate, } } } else { - for (i = 0; i < __clk_get_num_parents(mix_clk); i++) { - parent = clk_get_parent_by_index(mix_clk, i); - parent_rate = __clk_get_rate(parent); + for (i = 0; i < clk_hw_get_num_parents(hw); i++) { + parent = clk_hw_get_parent_by_index(hw, i); + parent_rate = clk_hw_get_rate(parent); div_val_max = _get_maxdiv(mix); for (j = 0; j < div_val_max; j++) { div = _get_div(mix, j); mix_rate = parent_rate / div; - gap = abs(mix_rate - rate); + gap = abs(mix_rate - req->rate); if (parent_best == NULL || gap < gap_best) { parent_best = parent; parent_rate_best = parent_rate; @@ -265,10 +260,14 @@ static long mmp_clk_mix_determine_rate(struct clk_hw *hw, unsigned long rate, } found: - *best_parent_rate = parent_rate_best; - *best_parent_clk = __clk_get_hw(parent_best); + if (!parent_best) + return -EINVAL; + + req->best_parent_rate = parent_rate_best; + req->best_parent_hw = parent_best; + req->rate = mix_rate_best; - return mix_rate_best; + return 0; } static int mmp_clk_mix_set_rate_and_parent(struct clk_hw *hw, @@ -381,20 +380,19 @@ static int mmp_clk_set_rate(struct clk_hw *hw, unsigned long rate, struct mmp_clk_mix_clk_table *item; unsigned long parent_rate; unsigned int best_divisor; - struct clk *mix_clk, *parent; + struct clk_hw *parent; int i; best_divisor = best_parent_rate / rate; - mix_clk = hw->clk; if (mix->table) { for (i = 0; i < mix->table_size; i++) { item = &mix->table[i]; if (item->valid == 0) continue; - parent = clk_get_parent_by_index(mix_clk, + parent = clk_hw_get_parent_by_index(hw, item->parent_index); - parent_rate = __clk_get_rate(parent); + parent_rate = clk_hw_get_rate(parent); if (parent_rate == best_parent_rate && item->divisor == best_divisor) break; @@ -407,13 +405,13 @@ static int mmp_clk_set_rate(struct clk_hw *hw, unsigned long rate, else return -EINVAL; } else { - for (i = 0; i < __clk_get_num_parents(mix_clk); i++) { - parent = clk_get_parent_by_index(mix_clk, i); - parent_rate = __clk_get_rate(parent); + for (i = 0; i < clk_hw_get_num_parents(hw); i++) { + parent = clk_hw_get_parent_by_index(hw, i); + parent_rate = clk_hw_get_rate(parent); if (parent_rate == best_parent_rate) break; } - if (i < __clk_get_num_parents(mix_clk)) + if (i < clk_hw_get_num_parents(hw)) return _set_rate(mix, _get_mux_val(mix, i), _get_div_val(mix, best_divisor), 1, 1); else @@ -468,20 +466,20 @@ struct clk *mmp_clk_register_mix(struct device *dev, memcpy(&mix->reg_info, &config->reg_info, sizeof(config->reg_info)); if (config->table) { table_bytes = sizeof(*config->table) * config->table_size; - mix->table = kzalloc(table_bytes, GFP_KERNEL); + mix->table = kmemdup(config->table, table_bytes, GFP_KERNEL); if (!mix->table) { pr_err("%s:%s: could not allocate mmp mix table\n", __func__, name); kfree(mix); return ERR_PTR(-ENOMEM); } - memcpy(mix->table, config->table, table_bytes); mix->table_size = config->table_size; } if (config->mux_table) { table_bytes = sizeof(u32) * num_parents; - mix->mux_table = kzalloc(table_bytes, GFP_KERNEL); + mix->mux_table = kmemdup(config->mux_table, table_bytes, + GFP_KERNEL); if (!mix->mux_table) { pr_err("%s:%s: could not allocate mmp mix mux-table\n", __func__, name); @@ -489,7 +487,6 @@ struct clk *mmp_clk_register_mix(struct device *dev, kfree(mix); return ERR_PTR(-ENOMEM); } - memcpy(mix->mux_table, config->mux_table, table_bytes); } mix->div_flags = config->div_flags; diff --git a/drivers/clk/mmp/clk.c b/drivers/clk/mmp/clk.c index cf038ef54c59..61893fe73251 100644 --- a/drivers/clk/mmp/clk.c +++ b/drivers/clk/mmp/clk.c @@ -1,7 +1,6 @@ #include <linux/io.h> -#include <linux/clk.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/mvebu/clk-cpu.c b/drivers/clk/mvebu/clk-cpu.c index 3821a88077ea..5837eb8a212f 100644 --- a/drivers/clk/mvebu/clk-cpu.c +++ b/drivers/clk/mvebu/clk-cpu.c @@ -10,7 +10,8 @@ * warranty of any kind, whether express or implied. */ #include <linux/kernel.h> -#include <linux/clkdev.h> +#include <linux/slab.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of_address.h> #include <linux/io.h> @@ -120,7 +121,7 @@ static int clk_cpu_on_set_rate(struct clk_hw *hwclk, unsigned long rate, if (!cpuclk->pmu_dfs) return -ENODEV; - cur_rate = __clk_get_rate(hwclk->clk); + cur_rate = clk_hw_get_rate(hwclk); reg = readl(cpuclk->reg_base + SYS_CTRL_CLK_DIVIDER_CTRL2_OFFSET); fabric_div = (reg >> SYS_CTRL_CLK_DIVIDER_CTRL2_NBCLK_RATIO_SHIFT) & @@ -196,7 +197,6 @@ static void __init of_cpu_clk_setup(struct device_node *node) for_each_node_by_type(dn, "cpu") { struct clk_init_data init; struct clk *clk; - struct clk *parent_clk; char *clk_name = kzalloc(5, GFP_KERNEL); int cpu, err; @@ -208,9 +208,8 @@ static void __init of_cpu_clk_setup(struct device_node *node) goto bail_out; sprintf(clk_name, "cpu%d", cpu); - parent_clk = of_clk_get(node, 0); - cpuclk[cpu].parent_name = __clk_get_name(parent_clk); + cpuclk[cpu].parent_name = of_clk_get_parent_name(node, 0); cpuclk[cpu].clk_name = clk_name; cpuclk[cpu].cpu = cpu; cpuclk[cpu].reg_base = clock_complex_base; diff --git a/drivers/clk/mvebu/common.c b/drivers/clk/mvebu/common.c index 15b370ff3748..4a22429cd7a2 100644 --- a/drivers/clk/mvebu/common.c +++ b/drivers/clk/mvebu/common.c @@ -13,8 +13,8 @@ */ #include <linux/kernel.h> +#include <linux/slab.h> #include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/of.h> diff --git a/drivers/clk/mxs/clk-div.c b/drivers/clk/mxs/clk-div.c index 90e1da93877e..049ee27d5a22 100644 --- a/drivers/clk/mxs/clk-div.c +++ b/drivers/clk/mxs/clk-div.c @@ -9,7 +9,6 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/slab.h> diff --git a/drivers/clk/mxs/clk-frac.c b/drivers/clk/mxs/clk-frac.c index e6aa6b567d68..73f0240569ac 100644 --- a/drivers/clk/mxs/clk-frac.c +++ b/drivers/clk/mxs/clk-frac.c @@ -9,7 +9,6 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/io.h> diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c index 32216f9b7f03..f01876af6bb8 100644 --- a/drivers/clk/mxs/clk-imx23.c +++ b/drivers/clk/mxs/clk-imx23.c @@ -9,9 +9,8 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/clk.h> #include <linux/clk/mxs.h> -#include <linux/clkdev.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/init.h> diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c index a68670868baa..6b572b759f9a 100644 --- a/drivers/clk/mxs/clk-imx28.c +++ b/drivers/clk/mxs/clk-imx28.c @@ -9,9 +9,9 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/clk.h> #include <linux/clk/mxs.h> #include <linux/clkdev.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/init.h> diff --git a/drivers/clk/mxs/clk-pll.c b/drivers/clk/mxs/clk-pll.c index fadae41833ec..d4ca79a868e0 100644 --- a/drivers/clk/mxs/clk-pll.c +++ b/drivers/clk/mxs/clk-pll.c @@ -9,7 +9,6 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/err.h> diff --git a/drivers/clk/mxs/clk-ref.c b/drivers/clk/mxs/clk-ref.c index 4adeed6c2f94..495f99b7965e 100644 --- a/drivers/clk/mxs/clk-ref.c +++ b/drivers/clk/mxs/clk-ref.c @@ -9,7 +9,6 @@ * http://www.gnu.org/copyleft/gpl.html */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/io.h> diff --git a/drivers/clk/mxs/clk.h b/drivers/clk/mxs/clk.h index f07d821dd75d..a4590956d2a2 100644 --- a/drivers/clk/mxs/clk.h +++ b/drivers/clk/mxs/clk.h @@ -12,7 +12,8 @@ #ifndef __MXS_CLK_H #define __MXS_CLK_H -#include <linux/clk.h> +struct clk; + #include <linux/clk-provider.h> #include <linux/spinlock.h> diff --git a/drivers/clk/nxp/clk-lpc18xx-cgu.c b/drivers/clk/nxp/clk-lpc18xx-cgu.c index 81e9e1c788f4..e0a3cb8970ab 100644 --- a/drivers/clk/nxp/clk-lpc18xx-cgu.c +++ b/drivers/clk/nxp/clk-lpc18xx-cgu.c @@ -8,7 +8,6 @@ * warranty of any kind, whether express or implied. */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/kernel.h> diff --git a/drivers/clk/pistachio/clk-pistachio.c b/drivers/clk/pistachio/clk-pistachio.c index 8c0fe8828f99..c4ceb5eaf46c 100644 --- a/drivers/clk/pistachio/clk-pistachio.c +++ b/drivers/clk/pistachio/clk-pistachio.c @@ -159,9 +159,15 @@ PNAME(mux_debug) = { "mips_pll_mux", "rpu_v_pll_mux", "wifi_pll_mux", "bt_pll_mux" }; static u32 mux_debug_idx[] = { 0x0, 0x1, 0x2, 0x4, 0x8, 0x10 }; -static unsigned int pistachio_critical_clks[] __initdata = { - CLK_MIPS, - CLK_PERIPH_SYS, +static unsigned int pistachio_critical_clks_core[] __initdata = { + CLK_MIPS +}; + +static unsigned int pistachio_critical_clks_sys[] __initdata = { + PERIPH_CLK_SYS, + PERIPH_CLK_SYS_BUS, + PERIPH_CLK_DDR, + PERIPH_CLK_ROM, }; static void __init pistachio_clk_init(struct device_node *np) @@ -193,8 +199,8 @@ static void __init pistachio_clk_init(struct device_node *np) pistachio_clk_register_provider(p); - pistachio_clk_force_enable(p, pistachio_critical_clks, - ARRAY_SIZE(pistachio_critical_clks)); + pistachio_clk_force_enable(p, pistachio_critical_clks_core, + ARRAY_SIZE(pistachio_critical_clks_core)); } CLK_OF_DECLARE(pistachio_clk, "img,pistachio-clk", pistachio_clk_init); @@ -261,6 +267,9 @@ static void __init pistachio_clk_periph_init(struct device_node *np) ARRAY_SIZE(pistachio_periph_gates)); pistachio_clk_register_provider(p); + + pistachio_clk_force_enable(p, pistachio_critical_clks_sys, + ARRAY_SIZE(pistachio_critical_clks_sys)); } CLK_OF_DECLARE(pistachio_clk_periph, "img,pistachio-clk-periph", pistachio_clk_periph_init); diff --git a/drivers/clk/pistachio/clk-pll.c b/drivers/clk/pistachio/clk-pll.c index e17dada0dd21..7e8daab9025b 100644 --- a/drivers/clk/pistachio/clk-pll.c +++ b/drivers/clk/pistachio/clk-pll.c @@ -65,6 +65,12 @@ #define MIN_OUTPUT_FRAC 12000000UL #define MAX_OUTPUT_FRAC 1600000000UL +/* Fractional PLL operating modes */ +enum pll_mode { + PLL_MODE_FRAC, + PLL_MODE_INT, +}; + struct pistachio_clk_pll { struct clk_hw hw; void __iomem *base; @@ -88,12 +94,10 @@ static inline void pll_lock(struct pistachio_clk_pll *pll) cpu_relax(); } -static inline u32 do_div_round_closest(u64 dividend, u32 divisor) +static inline u64 do_div_round_closest(u64 dividend, u64 divisor) { dividend += divisor / 2; - do_div(dividend, divisor); - - return dividend; + return div64_u64(dividend, divisor); } static inline struct pistachio_clk_pll *to_pistachio_pll(struct clk_hw *hw) @@ -101,6 +105,29 @@ static inline struct pistachio_clk_pll *to_pistachio_pll(struct clk_hw *hw) return container_of(hw, struct pistachio_clk_pll, hw); } +static inline enum pll_mode pll_frac_get_mode(struct clk_hw *hw) +{ + struct pistachio_clk_pll *pll = to_pistachio_pll(hw); + u32 val; + + val = pll_readl(pll, PLL_CTRL3) & PLL_FRAC_CTRL3_DSMPD; + return val ? PLL_MODE_INT : PLL_MODE_FRAC; +} + +static inline void pll_frac_set_mode(struct clk_hw *hw, enum pll_mode mode) +{ + struct pistachio_clk_pll *pll = to_pistachio_pll(hw); + u32 val; + + val = pll_readl(pll, PLL_CTRL3); + if (mode == PLL_MODE_INT) + val |= PLL_FRAC_CTRL3_DSMPD | PLL_FRAC_CTRL3_DACPD; + else + val &= ~(PLL_FRAC_CTRL3_DSMPD | PLL_FRAC_CTRL3_DACPD); + + pll_writel(pll, val, PLL_CTRL3); +} + static struct pistachio_pll_rate_table * pll_get_params(struct pistachio_clk_pll *pll, unsigned long fref, unsigned long fout) @@ -136,8 +163,7 @@ static int pll_gf40lp_frac_enable(struct clk_hw *hw) u32 val; val = pll_readl(pll, PLL_CTRL3); - val &= ~(PLL_FRAC_CTRL3_PD | PLL_FRAC_CTRL3_DACPD | - PLL_FRAC_CTRL3_DSMPD | PLL_FRAC_CTRL3_FOUTPOSTDIVPD | + val &= ~(PLL_FRAC_CTRL3_PD | PLL_FRAC_CTRL3_FOUTPOSTDIVPD | PLL_FRAC_CTRL3_FOUT4PHASEPD | PLL_FRAC_CTRL3_FOUTVCOPD); pll_writel(pll, val, PLL_CTRL3); @@ -173,8 +199,8 @@ static int pll_gf40lp_frac_set_rate(struct clk_hw *hw, unsigned long rate, struct pistachio_clk_pll *pll = to_pistachio_pll(hw); struct pistachio_pll_rate_table *params; int enabled = pll_gf40lp_frac_is_enabled(hw); - u32 val, vco, old_postdiv1, old_postdiv2; - const char *name = __clk_get_name(hw->clk); + u64 val, vco, old_postdiv1, old_postdiv2; + const char *name = clk_hw_get_name(hw); if (rate < MIN_OUTPUT_FRAC || rate > MAX_OUTPUT_FRAC) return -EINVAL; @@ -183,17 +209,21 @@ static int pll_gf40lp_frac_set_rate(struct clk_hw *hw, unsigned long rate, if (!params || !params->refdiv) return -EINVAL; - vco = params->fref * params->fbdiv / params->refdiv; + /* calculate vco */ + vco = params->fref; + vco *= (params->fbdiv << 24) + params->frac; + vco = div64_u64(vco, params->refdiv << 24); + if (vco < MIN_VCO_FRAC_FRAC || vco > MAX_VCO_FRAC_FRAC) - pr_warn("%s: VCO %u is out of range %lu..%lu\n", name, vco, + pr_warn("%s: VCO %llu is out of range %lu..%lu\n", name, vco, MIN_VCO_FRAC_FRAC, MAX_VCO_FRAC_FRAC); - val = params->fref / params->refdiv; + val = div64_u64(params->fref, params->refdiv); if (val < MIN_PFD) - pr_warn("%s: PFD %u is too low (min %lu)\n", + pr_warn("%s: PFD %llu is too low (min %lu)\n", name, val, MIN_PFD); if (val > vco / 16) - pr_warn("%s: PFD %u is too high (max %u)\n", + pr_warn("%s: PFD %llu is too high (max %llu)\n", name, val, vco / 16); val = pll_readl(pll, PLL_CTRL1); @@ -227,6 +257,12 @@ static int pll_gf40lp_frac_set_rate(struct clk_hw *hw, unsigned long rate, (params->postdiv2 << PLL_FRAC_CTRL2_POSTDIV2_SHIFT); pll_writel(pll, val, PLL_CTRL2); + /* set operating mode */ + if (params->frac) + pll_frac_set_mode(hw, PLL_MODE_FRAC); + else + pll_frac_set_mode(hw, PLL_MODE_INT); + if (enabled) pll_lock(pll); @@ -237,8 +273,7 @@ static unsigned long pll_gf40lp_frac_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { struct pistachio_clk_pll *pll = to_pistachio_pll(hw); - u32 val, prediv, fbdiv, frac, postdiv1, postdiv2; - u64 rate = parent_rate; + u64 val, prediv, fbdiv, frac, postdiv1, postdiv2, rate; val = pll_readl(pll, PLL_CTRL1); prediv = (val >> PLL_CTRL1_REFDIV_SHIFT) & PLL_CTRL1_REFDIV_MASK; @@ -251,7 +286,13 @@ static unsigned long pll_gf40lp_frac_recalc_rate(struct clk_hw *hw, PLL_FRAC_CTRL2_POSTDIV2_MASK; frac = (val >> PLL_FRAC_CTRL2_FRAC_SHIFT) & PLL_FRAC_CTRL2_FRAC_MASK; - rate *= (fbdiv << 24) + frac; + /* get operating mode (int/frac) and calculate rate accordingly */ + rate = parent_rate; + if (pll_frac_get_mode(hw) == PLL_MODE_FRAC) + rate *= (fbdiv << 24) + frac; + else + rate *= (fbdiv << 24); + rate = do_div_round_closest(rate, (prediv * postdiv1 * postdiv2) << 24); return rate; @@ -279,7 +320,7 @@ static int pll_gf40lp_laint_enable(struct clk_hw *hw) u32 val; val = pll_readl(pll, PLL_CTRL1); - val &= ~(PLL_INT_CTRL1_PD | PLL_INT_CTRL1_DSMPD | + val &= ~(PLL_INT_CTRL1_PD | PLL_INT_CTRL1_FOUTPOSTDIVPD | PLL_INT_CTRL1_FOUTVCOPD); pll_writel(pll, val, PLL_CTRL1); @@ -316,7 +357,7 @@ static int pll_gf40lp_laint_set_rate(struct clk_hw *hw, unsigned long rate, struct pistachio_pll_rate_table *params; int enabled = pll_gf40lp_laint_is_enabled(hw); u32 val, vco, old_postdiv1, old_postdiv2; - const char *name = __clk_get_name(hw->clk); + const char *name = clk_hw_get_name(hw); if (rate < MIN_OUTPUT_LA || rate > MAX_OUTPUT_LA) return -EINVAL; @@ -325,12 +366,12 @@ static int pll_gf40lp_laint_set_rate(struct clk_hw *hw, unsigned long rate, if (!params || !params->refdiv) return -EINVAL; - vco = params->fref * params->fbdiv / params->refdiv; + vco = div_u64(params->fref * params->fbdiv, params->refdiv); if (vco < MIN_VCO_LA || vco > MAX_VCO_LA) pr_warn("%s: VCO %u is out of range %lu..%lu\n", name, vco, MIN_VCO_LA, MAX_VCO_LA); - val = params->fref / params->refdiv; + val = div_u64(params->fref, params->refdiv); if (val < MIN_PFD) pr_warn("%s: PFD %u is too low (min %lu)\n", name, val, MIN_PFD); diff --git a/drivers/clk/pistachio/clk.c b/drivers/clk/pistachio/clk.c index 85faa83e1bd7..698cad4f509e 100644 --- a/drivers/clk/pistachio/clk.c +++ b/drivers/clk/pistachio/clk.c @@ -6,6 +6,7 @@ * version 2, as published by the Free Software Foundation. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/kernel.h> #include <linux/of.h> diff --git a/drivers/clk/pistachio/clk.h b/drivers/clk/pistachio/clk.h index 52fabbc24624..8d45178dbde3 100644 --- a/drivers/clk/pistachio/clk.h +++ b/drivers/clk/pistachio/clk.h @@ -95,13 +95,13 @@ struct pistachio_fixed_factor { } struct pistachio_pll_rate_table { - unsigned long fref; - unsigned long fout; - unsigned int refdiv; - unsigned int fbdiv; - unsigned int postdiv1; - unsigned int postdiv2; - unsigned int frac; + unsigned long long fref; + unsigned long long fout; + unsigned long long refdiv; + unsigned long long fbdiv; + unsigned long long postdiv1; + unsigned long long postdiv2; + unsigned long long frac; }; enum pistachio_pll_type { diff --git a/drivers/clk/pxa/clk-pxa25x.c b/drivers/clk/pxa/clk-pxa25x.c index 6cd88d963a7f..542e45ef5087 100644 --- a/drivers/clk/pxa/clk-pxa25x.c +++ b/drivers/clk/pxa/clk-pxa25x.c @@ -79,7 +79,7 @@ unsigned int pxa25x_get_clk_frequency_khz(int info) clks[3] / 1000000, (clks[3] % 1000000) / 10000); } - return (unsigned int)clks[0]; + return (unsigned int)clks[0] / KHz; } static unsigned long clk_pxa25x_memory_get_rate(struct clk_hw *hw, diff --git a/drivers/clk/pxa/clk-pxa27x.c b/drivers/clk/pxa/clk-pxa27x.c index 9a31b77eed23..5b82d30baf9f 100644 --- a/drivers/clk/pxa/clk-pxa27x.c +++ b/drivers/clk/pxa/clk-pxa27x.c @@ -80,7 +80,7 @@ unsigned int pxa27x_get_clk_frequency_khz(int info) pr_info("System bus clock: %ld.%02ldMHz\n", clks[4] / 1000000, (clks[4] % 1000000) / 10000); } - return (unsigned int)clks[0]; + return (unsigned int)clks[0] / KHz; } bool pxa27x_is_ppll_disabled(void) diff --git a/drivers/clk/pxa/clk-pxa3xx.c b/drivers/clk/pxa/clk-pxa3xx.c index ac03ba49e9d1..4af4eed5f89f 100644 --- a/drivers/clk/pxa/clk-pxa3xx.c +++ b/drivers/clk/pxa/clk-pxa3xx.c @@ -78,7 +78,7 @@ unsigned int pxa3xx_get_clk_frequency_khz(int info) pr_info("System bus clock: %ld.%02ldMHz\n", clks[4] / 1000000, (clks[4] % 1000000) / 10000); } - return (unsigned int)clks[0]; + return (unsigned int)clks[0] / KHz; } static unsigned long clk_pxa3xx_ac97_get_rate(struct clk_hw *hw, diff --git a/drivers/clk/qcom/clk-branch.c b/drivers/clk/qcom/clk-branch.c index 6b4d2bcb1a53..26f7af315066 100644 --- a/drivers/clk/qcom/clk-branch.c +++ b/drivers/clk/qcom/clk-branch.c @@ -75,7 +75,7 @@ static int clk_branch_wait(const struct clk_branch *br, bool enabling, bool (check_halt)(const struct clk_branch *, bool)) { bool voted = br->halt_check & BRANCH_VOTED; - const char *name = __clk_get_name(br->clkr.hw.clk); + const char *name = clk_hw_get_name(&br->clkr.hw); /* Skip checking halt bit if the clock is in hardware gated mode */ if (clk_branch_in_hwcg_mode(br)) diff --git a/drivers/clk/qcom/clk-pll.c b/drivers/clk/qcom/clk-pll.c index 245d5063a385..5b940d629045 100644 --- a/drivers/clk/qcom/clk-pll.c +++ b/drivers/clk/qcom/clk-pll.c @@ -135,19 +135,19 @@ struct pll_freq_tbl *find_freq(const struct pll_freq_tbl *f, unsigned long rate) return NULL; } -static long -clk_pll_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, unsigned long max_rate, - unsigned long *p_rate, struct clk_hw **p) +static int +clk_pll_determine_rate(struct clk_hw *hw, struct clk_rate_request *req) { struct clk_pll *pll = to_clk_pll(hw); const struct pll_freq_tbl *f; - f = find_freq(pll->freq_tbl, rate); + f = find_freq(pll->freq_tbl, req->rate); if (!f) - return clk_pll_recalc_rate(hw, *p_rate); + req->rate = clk_pll_recalc_rate(hw, req->best_parent_rate); + else + req->rate = f->freq; - return f->freq; + return 0; } static int @@ -194,7 +194,7 @@ static int wait_for_pll(struct clk_pll *pll) u32 val; int count; int ret; - const char *name = __clk_get_name(pll->clkr.hw.clk); + const char *name = clk_hw_get_name(&pll->clkr.hw); /* Wait for pll to enable. */ for (count = 200; count > 0; count--) { @@ -213,7 +213,7 @@ static int wait_for_pll(struct clk_pll *pll) static int clk_pll_vote_enable(struct clk_hw *hw) { int ret; - struct clk_pll *p = to_clk_pll(__clk_get_hw(__clk_get_parent(hw->clk))); + struct clk_pll *p = to_clk_pll(clk_hw_get_parent(hw)); ret = clk_enable_regmap(hw); if (ret) @@ -292,3 +292,78 @@ void clk_pll_configure_sr_hpm_lp(struct clk_pll *pll, struct regmap *regmap, clk_pll_set_fsm_mode(pll, regmap, 0); } EXPORT_SYMBOL_GPL(clk_pll_configure_sr_hpm_lp); + +static int clk_pll_sr2_enable(struct clk_hw *hw) +{ + struct clk_pll *pll = to_clk_pll(hw); + int ret; + u32 mode; + + ret = regmap_read(pll->clkr.regmap, pll->mode_reg, &mode); + if (ret) + return ret; + + /* Disable PLL bypass mode. */ + ret = regmap_update_bits(pll->clkr.regmap, pll->mode_reg, PLL_BYPASSNL, + PLL_BYPASSNL); + if (ret) + return ret; + + /* + * H/W requires a 5us delay between disabling the bypass and + * de-asserting the reset. Delay 10us just to be safe. + */ + udelay(10); + + /* De-assert active-low PLL reset. */ + ret = regmap_update_bits(pll->clkr.regmap, pll->mode_reg, PLL_RESET_N, + PLL_RESET_N); + if (ret) + return ret; + + ret = wait_for_pll(pll); + if (ret) + return ret; + + /* Enable PLL output. */ + return regmap_update_bits(pll->clkr.regmap, pll->mode_reg, PLL_OUTCTRL, + PLL_OUTCTRL); +} + +static int +clk_pll_sr2_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long prate) +{ + struct clk_pll *pll = to_clk_pll(hw); + const struct pll_freq_tbl *f; + bool enabled; + u32 mode; + u32 enable_mask = PLL_OUTCTRL | PLL_BYPASSNL | PLL_RESET_N; + + f = find_freq(pll->freq_tbl, rate); + if (!f) + return -EINVAL; + + regmap_read(pll->clkr.regmap, pll->mode_reg, &mode); + enabled = (mode & enable_mask) == enable_mask; + + if (enabled) + clk_pll_disable(hw); + + regmap_update_bits(pll->clkr.regmap, pll->l_reg, 0x3ff, f->l); + regmap_update_bits(pll->clkr.regmap, pll->m_reg, 0x7ffff, f->m); + regmap_update_bits(pll->clkr.regmap, pll->n_reg, 0x7ffff, f->n); + + if (enabled) + clk_pll_sr2_enable(hw); + + return 0; +} + +const struct clk_ops clk_pll_sr2_ops = { + .enable = clk_pll_sr2_enable, + .disable = clk_pll_disable, + .set_rate = clk_pll_sr2_set_rate, + .recalc_rate = clk_pll_recalc_rate, + .determine_rate = clk_pll_determine_rate, +}; +EXPORT_SYMBOL_GPL(clk_pll_sr2_ops); diff --git a/drivers/clk/qcom/clk-pll.h b/drivers/clk/qcom/clk-pll.h index c9c0cda306d0..ffd0c63bddbc 100644 --- a/drivers/clk/qcom/clk-pll.h +++ b/drivers/clk/qcom/clk-pll.h @@ -62,6 +62,7 @@ struct clk_pll { extern const struct clk_ops clk_pll_ops; extern const struct clk_ops clk_pll_vote_ops; +extern const struct clk_ops clk_pll_sr2_ops; #define to_clk_pll(_hw) container_of(to_clk_regmap(_hw), struct clk_pll, clkr) diff --git a/drivers/clk/qcom/clk-rcg.c b/drivers/clk/qcom/clk-rcg.c index 7b3d62674203..bccedc4b5756 100644 --- a/drivers/clk/qcom/clk-rcg.c +++ b/drivers/clk/qcom/clk-rcg.c @@ -45,7 +45,7 @@ static u32 src_to_ns(struct src_sel *s, u8 src, u32 ns) static u8 clk_rcg_get_parent(struct clk_hw *hw) { struct clk_rcg *rcg = to_clk_rcg(hw); - int num_parents = __clk_get_num_parents(hw->clk); + int num_parents = clk_hw_get_num_parents(hw); u32 ns; int i, ret; @@ -59,7 +59,7 @@ static u8 clk_rcg_get_parent(struct clk_hw *hw) err: pr_debug("%s: Clock %s has invalid parent, using default.\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); return 0; } @@ -72,7 +72,7 @@ static int reg_to_bank(struct clk_dyn_rcg *rcg, u32 bank) static u8 clk_dyn_rcg_get_parent(struct clk_hw *hw) { struct clk_dyn_rcg *rcg = to_clk_dyn_rcg(hw); - int num_parents = __clk_get_num_parents(hw->clk); + int num_parents = clk_hw_get_num_parents(hw); u32 ns, reg; int bank; int i, ret; @@ -95,7 +95,7 @@ static u8 clk_dyn_rcg_get_parent(struct clk_hw *hw) err: pr_debug("%s: Clock %s has invalid parent, using default.\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); return 0; } @@ -404,14 +404,12 @@ clk_dyn_rcg_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) return calc_rate(parent_rate, m, n, mode, pre_div); } -static long _freq_tbl_determine_rate(struct clk_hw *hw, - const struct freq_tbl *f, unsigned long rate, - unsigned long min_rate, unsigned long max_rate, - unsigned long *p_rate, struct clk_hw **p_hw, +static int _freq_tbl_determine_rate(struct clk_hw *hw, const struct freq_tbl *f, + struct clk_rate_request *req, const struct parent_map *parent_map) { - unsigned long clk_flags; - struct clk *p; + unsigned long clk_flags, rate = req->rate; + struct clk_hw *p; int index; f = qcom_find_freq(f, rate); @@ -422,8 +420,8 @@ static long _freq_tbl_determine_rate(struct clk_hw *hw, if (index < 0) return index; - clk_flags = __clk_get_flags(hw->clk); - p = clk_get_parent_by_index(hw->clk, index); + clk_flags = clk_hw_get_flags(hw); + p = clk_hw_get_parent_by_index(hw, index); if (clk_flags & CLK_SET_RATE_PARENT) { rate = rate * f->pre_div; if (f->n) { @@ -433,27 +431,26 @@ static long _freq_tbl_determine_rate(struct clk_hw *hw, rate = tmp; } } else { - rate = __clk_get_rate(p); + rate = clk_hw_get_rate(p); } - *p_hw = __clk_get_hw(p); - *p_rate = rate; + req->best_parent_hw = p; + req->best_parent_rate = rate; + req->rate = f->freq; - return f->freq; + return 0; } -static long clk_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, unsigned long max_rate, - unsigned long *p_rate, struct clk_hw **p) +static int clk_rcg_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_rcg *rcg = to_clk_rcg(hw); - return _freq_tbl_determine_rate(hw, rcg->freq_tbl, rate, min_rate, - max_rate, p_rate, p, rcg->s.parent_map); + return _freq_tbl_determine_rate(hw, rcg->freq_tbl, req, + rcg->s.parent_map); } -static long clk_dyn_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, unsigned long max_rate, - unsigned long *p_rate, struct clk_hw **p) +static int clk_dyn_rcg_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_dyn_rcg *rcg = to_clk_dyn_rcg(hw); u32 reg; @@ -464,24 +461,22 @@ static long clk_dyn_rcg_determine_rate(struct clk_hw *hw, unsigned long rate, bank = reg_to_bank(rcg, reg); s = &rcg->s[bank]; - return _freq_tbl_determine_rate(hw, rcg->freq_tbl, rate, min_rate, - max_rate, p_rate, p, s->parent_map); + return _freq_tbl_determine_rate(hw, rcg->freq_tbl, req, s->parent_map); } -static long clk_rcg_bypass_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, unsigned long max_rate, - unsigned long *p_rate, struct clk_hw **p_hw) +static int clk_rcg_bypass_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_rcg *rcg = to_clk_rcg(hw); const struct freq_tbl *f = rcg->freq_tbl; - struct clk *p; + struct clk_hw *p; int index = qcom_find_src_index(hw, rcg->s.parent_map, f->src); - p = clk_get_parent_by_index(hw->clk, index); - *p_hw = __clk_get_hw(p); - *p_rate = __clk_round_rate(p, rate); + req->best_parent_hw = p = clk_hw_get_parent_by_index(hw, index); + req->best_parent_rate = clk_hw_round_rate(p, req->rate); + req->rate = req->best_parent_rate; - return *p_rate; + return 0; } static int __clk_rcg_set_rate(struct clk_rcg *rcg, const struct freq_tbl *f) diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c index 92936f0912d2..9aec1761fd29 100644 --- a/drivers/clk/qcom/clk-rcg2.c +++ b/drivers/clk/qcom/clk-rcg2.c @@ -63,7 +63,7 @@ static int clk_rcg2_is_enabled(struct clk_hw *hw) static u8 clk_rcg2_get_parent(struct clk_hw *hw) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); - int num_parents = __clk_get_num_parents(hw->clk); + int num_parents = clk_hw_get_num_parents(hw); u32 cfg; int i, ret; @@ -80,7 +80,7 @@ static u8 clk_rcg2_get_parent(struct clk_hw *hw) err: pr_debug("%s: Clock %s has invalid parent, using default.\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); return 0; } @@ -89,7 +89,7 @@ static int update_config(struct clk_rcg2 *rcg) int count, ret; u32 cmd; struct clk_hw *hw = &rcg->clkr.hw; - const char *name = __clk_get_name(hw->clk); + const char *name = clk_hw_get_name(hw); ret = regmap_update_bits(rcg->clkr.regmap, rcg->cmd_rcgr + CMD_REG, CMD_UPDATE, CMD_UPDATE); @@ -176,12 +176,11 @@ clk_rcg2_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) return calc_rate(parent_rate, m, n, mode, hid_div); } -static long _freq_tbl_determine_rate(struct clk_hw *hw, - const struct freq_tbl *f, unsigned long rate, - unsigned long *p_rate, struct clk_hw **p_hw) +static int _freq_tbl_determine_rate(struct clk_hw *hw, + const struct freq_tbl *f, struct clk_rate_request *req) { - unsigned long clk_flags; - struct clk *p; + unsigned long clk_flags, rate = req->rate; + struct clk_hw *p; struct clk_rcg2 *rcg = to_clk_rcg2(hw); int index; @@ -193,8 +192,8 @@ static long _freq_tbl_determine_rate(struct clk_hw *hw, if (index < 0) return index; - clk_flags = __clk_get_flags(hw->clk); - p = clk_get_parent_by_index(hw->clk, index); + clk_flags = clk_hw_get_flags(hw); + p = clk_hw_get_parent_by_index(hw, index); if (clk_flags & CLK_SET_RATE_PARENT) { if (f->pre_div) { rate /= 2; @@ -208,21 +207,21 @@ static long _freq_tbl_determine_rate(struct clk_hw *hw, rate = tmp; } } else { - rate = __clk_get_rate(p); + rate = clk_hw_get_rate(p); } - *p_hw = __clk_get_hw(p); - *p_rate = rate; + req->best_parent_hw = p; + req->best_parent_rate = rate; + req->rate = f->freq; - return f->freq; + return 0; } -static long clk_rcg2_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, unsigned long max_rate, - unsigned long *p_rate, struct clk_hw **p) +static int clk_rcg2_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); - return _freq_tbl_determine_rate(hw, rcg->freq_tbl, rate, p_rate, p); + return _freq_tbl_determine_rate(hw, rcg->freq_tbl, req); } static int clk_rcg2_configure(struct clk_rcg2 *rcg, const struct freq_tbl *f) @@ -374,35 +373,33 @@ static int clk_edp_pixel_set_rate_and_parent(struct clk_hw *hw, return clk_edp_pixel_set_rate(hw, rate, parent_rate); } -static long clk_edp_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *p_rate, struct clk_hw **p) +static int clk_edp_pixel_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); const struct freq_tbl *f = rcg->freq_tbl; const struct frac_entry *frac; int delta = 100000; - s64 src_rate = *p_rate; s64 request; u32 mask = BIT(rcg->hid_width) - 1; u32 hid_div; int index = qcom_find_src_index(hw, rcg->parent_map, f->src); /* Force the correct parent */ - *p = __clk_get_hw(clk_get_parent_by_index(hw->clk, index)); + req->best_parent_hw = clk_hw_get_parent_by_index(hw, index); + req->best_parent_rate = clk_hw_get_rate(req->best_parent_hw); - if (src_rate == 810000000) + if (req->best_parent_rate == 810000000) frac = frac_table_810m; else frac = frac_table_675m; for (; frac->num; frac++) { - request = rate; + request = req->rate; request *= frac->den; request = div_s64(request, frac->num); - if ((src_rate < (request - delta)) || - (src_rate > (request + delta))) + if ((req->best_parent_rate < (request - delta)) || + (req->best_parent_rate > (request + delta))) continue; regmap_read(rcg->clkr.regmap, rcg->cmd_rcgr + CFG_REG, @@ -410,8 +407,10 @@ static long clk_edp_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, hid_div >>= CFG_SRC_DIV_SHIFT; hid_div &= mask; - return calc_rate(src_rate, frac->num, frac->den, !!frac->den, - hid_div); + req->rate = calc_rate(req->best_parent_rate, + frac->num, frac->den, + !!frac->den, hid_div); + return 0; } return -EINVAL; @@ -428,28 +427,28 @@ const struct clk_ops clk_edp_pixel_ops = { }; EXPORT_SYMBOL_GPL(clk_edp_pixel_ops); -static long clk_byte_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, unsigned long max_rate, - unsigned long *p_rate, struct clk_hw **p_hw) +static int clk_byte_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); const struct freq_tbl *f = rcg->freq_tbl; int index = qcom_find_src_index(hw, rcg->parent_map, f->src); unsigned long parent_rate, div; u32 mask = BIT(rcg->hid_width) - 1; - struct clk *p; + struct clk_hw *p; - if (rate == 0) + if (req->rate == 0) return -EINVAL; - p = clk_get_parent_by_index(hw->clk, index); - *p_hw = __clk_get_hw(p); - *p_rate = parent_rate = __clk_round_rate(p, rate); + req->best_parent_hw = p = clk_hw_get_parent_by_index(hw, index); + req->best_parent_rate = parent_rate = clk_hw_round_rate(p, req->rate); - div = DIV_ROUND_UP((2 * parent_rate), rate) - 1; + div = DIV_ROUND_UP((2 * parent_rate), req->rate) - 1; div = min_t(u32, div, mask); - return calc_rate(parent_rate, 0, 0, 0, div); + req->rate = calc_rate(parent_rate, 0, 0, 0, div); + + return 0; } static int clk_byte_set_rate(struct clk_hw *hw, unsigned long rate, @@ -494,10 +493,8 @@ static const struct frac_entry frac_table_pixel[] = { { } }; -static long clk_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *p_rate, struct clk_hw **p) +static int clk_pixel_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); unsigned long request, src_rate; @@ -505,20 +502,20 @@ static long clk_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, const struct freq_tbl *f = rcg->freq_tbl; const struct frac_entry *frac = frac_table_pixel; int index = qcom_find_src_index(hw, rcg->parent_map, f->src); - struct clk *parent = clk_get_parent_by_index(hw->clk, index); - *p = __clk_get_hw(parent); + req->best_parent_hw = clk_hw_get_parent_by_index(hw, index); for (; frac->num; frac++) { - request = (rate * frac->den) / frac->num; + request = (req->rate * frac->den) / frac->num; - src_rate = __clk_round_rate(parent, request); + src_rate = clk_hw_round_rate(req->best_parent_hw, request); if ((src_rate < (request - delta)) || (src_rate > (request + delta))) continue; - *p_rate = src_rate; - return (src_rate * frac->num) / frac->den; + req->best_parent_rate = src_rate; + req->rate = (src_rate * frac->num) / frac->den; + return 0; } return -EINVAL; diff --git a/drivers/clk/qcom/common.c b/drivers/clk/qcom/common.c index f7101e330b1d..2dedceefd21d 100644 --- a/drivers/clk/qcom/common.c +++ b/drivers/clk/qcom/common.c @@ -12,6 +12,7 @@ */ #include <linux/export.h> +#include <linux/module.h> #include <linux/regmap.h> #include <linux/platform_device.h> #include <linux/clk-provider.h> @@ -45,7 +46,7 @@ EXPORT_SYMBOL_GPL(qcom_find_freq); int qcom_find_src_index(struct clk_hw *hw, const struct parent_map *map, u8 src) { - int i, num_parents = __clk_get_num_parents(hw->clk); + int i, num_parents = clk_hw_get_num_parents(hw); for (i = 0; i < num_parents; i++) if (src == map[i].src) @@ -144,3 +145,5 @@ void qcom_cc_remove(struct platform_device *pdev) reset_controller_unregister(platform_get_drvdata(pdev)); } EXPORT_SYMBOL_GPL(qcom_cc_remove); + +MODULE_LICENSE("GPL v2"); diff --git a/drivers/clk/qcom/gcc-apq8084.c b/drivers/clk/qcom/gcc-apq8084.c index 54a756b90a37..3563019b8e3c 100644 --- a/drivers/clk/qcom/gcc-apq8084.c +++ b/drivers/clk/qcom/gcc-apq8084.c @@ -48,7 +48,7 @@ static const struct parent_map gcc_xo_gpll0_map[] = { { P_GPLL0, 1 } }; -static const char *gcc_xo_gpll0[] = { +static const char * const gcc_xo_gpll0[] = { "xo", "gpll0_vote", }; @@ -59,7 +59,7 @@ static const struct parent_map gcc_xo_gpll0_gpll4_map[] = { { P_GPLL4, 5 } }; -static const char *gcc_xo_gpll0_gpll4[] = { +static const char * const gcc_xo_gpll0_gpll4[] = { "xo", "gpll0_vote", "gpll4_vote", @@ -70,7 +70,7 @@ static const struct parent_map gcc_xo_sata_asic0_map[] = { { P_SATA_ASIC0_CLK, 2 } }; -static const char *gcc_xo_sata_asic0[] = { +static const char * const gcc_xo_sata_asic0[] = { "xo", "sata_asic0_clk", }; @@ -80,7 +80,7 @@ static const struct parent_map gcc_xo_sata_rx_map[] = { { P_SATA_RX_CLK, 2} }; -static const char *gcc_xo_sata_rx[] = { +static const char * const gcc_xo_sata_rx[] = { "xo", "sata_rx_clk", }; @@ -90,7 +90,7 @@ static const struct parent_map gcc_xo_pcie_map[] = { { P_PCIE_0_1_PIPE_CLK, 2 } }; -static const char *gcc_xo_pcie[] = { +static const char * const gcc_xo_pcie[] = { "xo", "pcie_pipe", }; @@ -100,7 +100,7 @@ static const struct parent_map gcc_xo_pcie_sleep_map[] = { { P_SLEEP_CLK, 6 } }; -static const char *gcc_xo_pcie_sleep[] = { +static const char * const gcc_xo_pcie_sleep[] = { "xo", "sleep_clk_src", }; @@ -2105,6 +2105,7 @@ static struct clk_branch gcc_ce1_clk = { "ce1_clk_src", }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, .ops = &clk_branch2_ops, }, }, diff --git a/drivers/clk/qcom/gcc-ipq806x.c b/drivers/clk/qcom/gcc-ipq806x.c index 563969942a1d..40e480220cd3 100644 --- a/drivers/clk/qcom/gcc-ipq806x.c +++ b/drivers/clk/qcom/gcc-ipq806x.c @@ -188,7 +188,7 @@ static const struct parent_map gcc_pxo_pll8_map[] = { { P_PLL8, 3 } }; -static const char *gcc_pxo_pll8[] = { +static const char * const gcc_pxo_pll8[] = { "pxo", "pll8_vote", }; @@ -199,7 +199,7 @@ static const struct parent_map gcc_pxo_pll8_cxo_map[] = { { P_CXO, 5 } }; -static const char *gcc_pxo_pll8_cxo[] = { +static const char * const gcc_pxo_pll8_cxo[] = { "pxo", "pll8_vote", "cxo", @@ -215,7 +215,7 @@ static const struct parent_map gcc_pxo_pll3_sata_map[] = { { P_PLL3, 6 } }; -static const char *gcc_pxo_pll3[] = { +static const char * const gcc_pxo_pll3[] = { "pxo", "pll3", }; @@ -226,7 +226,7 @@ static const struct parent_map gcc_pxo_pll8_pll0[] = { { P_PLL0, 2 } }; -static const char *gcc_pxo_pll8_pll0_map[] = { +static const char * const gcc_pxo_pll8_pll0_map[] = { "pxo", "pll8_vote", "pll0_vote", @@ -240,7 +240,7 @@ static const struct parent_map gcc_pxo_pll8_pll14_pll18_pll0_map[] = { { P_PLL18, 1 } }; -static const char *gcc_pxo_pll8_pll14_pll18_pll0[] = { +static const char * const gcc_pxo_pll8_pll14_pll18_pll0[] = { "pxo", "pll8_vote", "pll0_vote", diff --git a/drivers/clk/qcom/gcc-msm8660.c b/drivers/clk/qcom/gcc-msm8660.c index fc6b12da5b30..b02826ed770a 100644 --- a/drivers/clk/qcom/gcc-msm8660.c +++ b/drivers/clk/qcom/gcc-msm8660.c @@ -70,7 +70,7 @@ static const struct parent_map gcc_pxo_pll8_map[] = { { P_PLL8, 3 } }; -static const char *gcc_pxo_pll8[] = { +static const char * const gcc_pxo_pll8[] = { "pxo", "pll8_vote", }; @@ -81,7 +81,7 @@ static const struct parent_map gcc_pxo_pll8_cxo_map[] = { { P_CXO, 5 } }; -static const char *gcc_pxo_pll8_cxo[] = { +static const char * const gcc_pxo_pll8_cxo[] = { "pxo", "pll8_vote", "cxo", @@ -1917,7 +1917,7 @@ static struct clk_rcg usb_fs1_xcvr_fs_src = { } }; -static const char *usb_fs1_xcvr_fs_src_p[] = { "usb_fs1_xcvr_fs_src" }; +static const char * const usb_fs1_xcvr_fs_src_p[] = { "usb_fs1_xcvr_fs_src" }; static struct clk_branch usb_fs1_xcvr_fs_clk = { .halt_reg = 0x2fcc, @@ -1984,7 +1984,7 @@ static struct clk_rcg usb_fs2_xcvr_fs_src = { } }; -static const char *usb_fs2_xcvr_fs_src_p[] = { "usb_fs2_xcvr_fs_src" }; +static const char * const usb_fs2_xcvr_fs_src_p[] = { "usb_fs2_xcvr_fs_src" }; static struct clk_branch usb_fs2_xcvr_fs_clk = { .halt_reg = 0x2fcc, diff --git a/drivers/clk/qcom/gcc-msm8916.c b/drivers/clk/qcom/gcc-msm8916.c index c66f7bc2ae87..22a4e1e732c0 100644 --- a/drivers/clk/qcom/gcc-msm8916.c +++ b/drivers/clk/qcom/gcc-msm8916.c @@ -51,7 +51,7 @@ static const struct parent_map gcc_xo_gpll0_map[] = { { P_GPLL0, 1 }, }; -static const char *gcc_xo_gpll0[] = { +static const char * const gcc_xo_gpll0[] = { "xo", "gpll0_vote", }; @@ -62,7 +62,7 @@ static const struct parent_map gcc_xo_gpll0_bimc_map[] = { { P_BIMC, 2 }, }; -static const char *gcc_xo_gpll0_bimc[] = { +static const char * const gcc_xo_gpll0_bimc[] = { "xo", "gpll0_vote", "bimc_pll_vote", @@ -75,7 +75,7 @@ static const struct parent_map gcc_xo_gpll0a_gpll1_gpll2a_map[] = { { P_GPLL2_AUX, 2 }, }; -static const char *gcc_xo_gpll0a_gpll1_gpll2a[] = { +static const char * const gcc_xo_gpll0a_gpll1_gpll2a[] = { "xo", "gpll0_vote", "gpll1_vote", @@ -88,7 +88,7 @@ static const struct parent_map gcc_xo_gpll0_gpll2_map[] = { { P_GPLL2, 2 }, }; -static const char *gcc_xo_gpll0_gpll2[] = { +static const char * const gcc_xo_gpll0_gpll2[] = { "xo", "gpll0_vote", "gpll2_vote", @@ -99,7 +99,7 @@ static const struct parent_map gcc_xo_gpll0a_map[] = { { P_GPLL0_AUX, 2 }, }; -static const char *gcc_xo_gpll0a[] = { +static const char * const gcc_xo_gpll0a[] = { "xo", "gpll0_vote", }; @@ -111,7 +111,7 @@ static const struct parent_map gcc_xo_gpll0_gpll1a_sleep_map[] = { { P_SLEEP_CLK, 6 }, }; -static const char *gcc_xo_gpll0_gpll1a_sleep[] = { +static const char * const gcc_xo_gpll0_gpll1a_sleep[] = { "xo", "gpll0_vote", "gpll1_vote", @@ -124,7 +124,7 @@ static const struct parent_map gcc_xo_gpll0_gpll1a_map[] = { { P_GPLL1_AUX, 2 }, }; -static const char *gcc_xo_gpll0_gpll1a[] = { +static const char * const gcc_xo_gpll0_gpll1a[] = { "xo", "gpll0_vote", "gpll1_vote", @@ -135,7 +135,7 @@ static const struct parent_map gcc_xo_dsibyte_map[] = { { P_DSI0_PHYPLL_BYTE, 2 }, }; -static const char *gcc_xo_dsibyte[] = { +static const char * const gcc_xo_dsibyte[] = { "xo", "dsi0pllbyte", }; @@ -146,7 +146,7 @@ static const struct parent_map gcc_xo_gpll0a_dsibyte_map[] = { { P_DSI0_PHYPLL_BYTE, 1 }, }; -static const char *gcc_xo_gpll0a_dsibyte[] = { +static const char * const gcc_xo_gpll0a_dsibyte[] = { "xo", "gpll0_vote", "dsi0pllbyte", @@ -158,7 +158,7 @@ static const struct parent_map gcc_xo_gpll0_dsiphy_map[] = { { P_DSI0_PHYPLL_DSI, 2 }, }; -static const char *gcc_xo_gpll0_dsiphy[] = { +static const char * const gcc_xo_gpll0_dsiphy[] = { "xo", "gpll0_vote", "dsi0pll", @@ -170,7 +170,7 @@ static const struct parent_map gcc_xo_gpll0a_dsiphy_map[] = { { P_DSI0_PHYPLL_DSI, 1 }, }; -static const char *gcc_xo_gpll0a_dsiphy[] = { +static const char * const gcc_xo_gpll0a_dsiphy[] = { "xo", "gpll0_vote", "dsi0pll", @@ -183,7 +183,7 @@ static const struct parent_map gcc_xo_gpll0a_gpll1_gpll2_map[] = { { P_GPLL2, 2 }, }; -static const char *gcc_xo_gpll0a_gpll1_gpll2[] = { +static const char * const gcc_xo_gpll0a_gpll1_gpll2[] = { "xo", "gpll0_vote", "gpll1_vote", @@ -2278,7 +2278,7 @@ static struct clk_branch gcc_prng_ahb_clk = { .halt_check = BRANCH_HALT_VOTED, .clkr = { .enable_reg = 0x45004, - .enable_mask = BIT(0), + .enable_mask = BIT(8), .hw.init = &(struct clk_init_data){ .name = "gcc_prng_ahb_clk", .parent_names = (const char *[]){ diff --git a/drivers/clk/qcom/gcc-msm8960.c b/drivers/clk/qcom/gcc-msm8960.c index eb6a4f9fa107..aa294b1bad34 100644 --- a/drivers/clk/qcom/gcc-msm8960.c +++ b/drivers/clk/qcom/gcc-msm8960.c @@ -125,7 +125,7 @@ static const struct parent_map gcc_pxo_pll8_map[] = { { P_PLL8, 3 } }; -static const char *gcc_pxo_pll8[] = { +static const char * const gcc_pxo_pll8[] = { "pxo", "pll8_vote", }; @@ -136,7 +136,7 @@ static const struct parent_map gcc_pxo_pll8_cxo_map[] = { { P_CXO, 5 } }; -static const char *gcc_pxo_pll8_cxo[] = { +static const char * const gcc_pxo_pll8_cxo[] = { "pxo", "pll8_vote", "cxo", @@ -148,7 +148,7 @@ static const struct parent_map gcc_pxo_pll8_pll3_map[] = { { P_PLL3, 6 } }; -static const char *gcc_pxo_pll8_pll3[] = { +static const char * const gcc_pxo_pll8_pll3[] = { "pxo", "pll8_vote", "pll3", @@ -2085,7 +2085,7 @@ static struct clk_rcg usb_hsic_xcvr_fs_src = { } }; -static const char *usb_hsic_xcvr_fs_src_p[] = { "usb_hsic_xcvr_fs_src" }; +static const char * const usb_hsic_xcvr_fs_src_p[] = { "usb_hsic_xcvr_fs_src" }; static struct clk_branch usb_hsic_xcvr_fs_clk = { .halt_reg = 0x2fc8, @@ -2181,7 +2181,7 @@ static struct clk_rcg usb_fs1_xcvr_fs_src = { } }; -static const char *usb_fs1_xcvr_fs_src_p[] = { "usb_fs1_xcvr_fs_src" }; +static const char * const usb_fs1_xcvr_fs_src_p[] = { "usb_fs1_xcvr_fs_src" }; static struct clk_branch usb_fs1_xcvr_fs_clk = { .halt_reg = 0x2fcc, @@ -2248,7 +2248,7 @@ static struct clk_rcg usb_fs2_xcvr_fs_src = { } }; -static const char *usb_fs2_xcvr_fs_src_p[] = { "usb_fs2_xcvr_fs_src" }; +static const char * const usb_fs2_xcvr_fs_src_p[] = { "usb_fs2_xcvr_fs_src" }; static struct clk_branch usb_fs2_xcvr_fs_clk = { .halt_reg = 0x2fcc, diff --git a/drivers/clk/qcom/gcc-msm8974.c b/drivers/clk/qcom/gcc-msm8974.c index c39d09874e74..2bcf87538f9d 100644 --- a/drivers/clk/qcom/gcc-msm8974.c +++ b/drivers/clk/qcom/gcc-msm8974.c @@ -44,7 +44,7 @@ static const struct parent_map gcc_xo_gpll0_map[] = { { P_GPLL0, 1 } }; -static const char *gcc_xo_gpll0[] = { +static const char * const gcc_xo_gpll0[] = { "xo", "gpll0_vote", }; @@ -55,7 +55,7 @@ static const struct parent_map gcc_xo_gpll0_gpll4_map[] = { { P_GPLL4, 5 } }; -static const char *gcc_xo_gpll0_gpll4[] = { +static const char * const gcc_xo_gpll0_gpll4[] = { "xo", "gpll0_vote", "gpll4_vote", @@ -1783,6 +1783,7 @@ static struct clk_branch gcc_ce1_clk = { "ce1_clk_src", }, .num_parents = 1, + .flags = CLK_SET_RATE_PARENT, .ops = &clk_branch2_ops, }, }, diff --git a/drivers/clk/qcom/lcc-ipq806x.c b/drivers/clk/qcom/lcc-ipq806x.c index 47f0ac16d149..93ad42b14366 100644 --- a/drivers/clk/qcom/lcc-ipq806x.c +++ b/drivers/clk/qcom/lcc-ipq806x.c @@ -71,7 +71,7 @@ static const struct parent_map lcc_pxo_pll4_map[] = { { P_PLL4, 2 } }; -static const char *lcc_pxo_pll4[] = { +static const char * const lcc_pxo_pll4[] = { "pxo", "pll4_vote", }; @@ -146,7 +146,7 @@ static struct clk_rcg mi2s_osr_src = { }, }; -static const char *lcc_mi2s_parents[] = { +static const char * const lcc_mi2s_parents[] = { "mi2s_osr_src", }; @@ -340,7 +340,7 @@ static struct clk_rcg spdif_src = { }, }; -static const char *lcc_spdif_parents[] = { +static const char * const lcc_spdif_parents[] = { "spdif_src", }; diff --git a/drivers/clk/qcom/lcc-msm8960.c b/drivers/clk/qcom/lcc-msm8960.c index d0df9d5fc3af..ecb96c284675 100644 --- a/drivers/clk/qcom/lcc-msm8960.c +++ b/drivers/clk/qcom/lcc-msm8960.c @@ -57,7 +57,7 @@ static const struct parent_map lcc_pxo_pll4_map[] = { { P_PLL4, 2 } }; -static const char *lcc_pxo_pll4[] = { +static const char * const lcc_pxo_pll4[] = { "pxo", "pll4_vote", }; @@ -127,7 +127,7 @@ static struct clk_rcg mi2s_osr_src = { }, }; -static const char *lcc_mi2s_parents[] = { +static const char * const lcc_mi2s_parents[] = { "mi2s_osr_src", }; @@ -233,7 +233,7 @@ static struct clk_rcg prefix##_osr_src = { \ }, \ }; \ \ -static const char *lcc_##prefix##_parents[] = { \ +static const char * const lcc_##prefix##_parents[] = { \ #prefix "_osr_src", \ }; \ \ @@ -445,7 +445,7 @@ static struct clk_rcg slimbus_src = { }, }; -static const char *lcc_slimbus_parents[] = { +static const char * const lcc_slimbus_parents[] = { "slimbus_src", }; diff --git a/drivers/clk/qcom/mmcc-apq8084.c b/drivers/clk/qcom/mmcc-apq8084.c index 1b17df2cb0af..f0ee6bde11af 100644 --- a/drivers/clk/qcom/mmcc-apq8084.c +++ b/drivers/clk/qcom/mmcc-apq8084.c @@ -53,7 +53,7 @@ static const struct parent_map mmcc_xo_mmpll0_mmpll1_gpll0_map[] = { { P_GPLL0, 5 } }; -static const char *mmcc_xo_mmpll0_mmpll1_gpll0[] = { +static const char * const mmcc_xo_mmpll0_mmpll1_gpll0[] = { "xo", "mmpll0_vote", "mmpll1_vote", @@ -69,7 +69,7 @@ static const struct parent_map mmcc_xo_mmpll0_dsi_hdmi_gpll0_map[] = { { P_DSI1PLL, 3 } }; -static const char *mmcc_xo_mmpll0_dsi_hdmi_gpll0[] = { +static const char * const mmcc_xo_mmpll0_dsi_hdmi_gpll0[] = { "xo", "mmpll0_vote", "hdmipll", @@ -86,7 +86,7 @@ static const struct parent_map mmcc_xo_mmpll0_1_2_gpll0_map[] = { { P_MMPLL2, 3 } }; -static const char *mmcc_xo_mmpll0_1_2_gpll0[] = { +static const char * const mmcc_xo_mmpll0_1_2_gpll0[] = { "xo", "mmpll0_vote", "mmpll1_vote", @@ -102,7 +102,7 @@ static const struct parent_map mmcc_xo_mmpll0_1_3_gpll0_map[] = { { P_MMPLL3, 3 } }; -static const char *mmcc_xo_mmpll0_1_3_gpll0[] = { +static const char * const mmcc_xo_mmpll0_1_3_gpll0[] = { "xo", "mmpll0_vote", "mmpll1_vote", @@ -119,7 +119,7 @@ static const struct parent_map mmcc_xo_dsi_hdmi_edp_map[] = { { P_DSI1PLL, 2 } }; -static const char *mmcc_xo_dsi_hdmi_edp[] = { +static const char * const mmcc_xo_dsi_hdmi_edp[] = { "xo", "edp_link_clk", "hdmipll", @@ -137,7 +137,7 @@ static const struct parent_map mmcc_xo_dsi_hdmi_edp_gpll0_map[] = { { P_DSI1PLL, 2 } }; -static const char *mmcc_xo_dsi_hdmi_edp_gpll0[] = { +static const char * const mmcc_xo_dsi_hdmi_edp_gpll0[] = { "xo", "edp_link_clk", "hdmipll", @@ -155,7 +155,7 @@ static const struct parent_map mmcc_xo_dsibyte_hdmi_edp_gpll0_map[] = { { P_DSI1PLL_BYTE, 2 } }; -static const char *mmcc_xo_dsibyte_hdmi_edp_gpll0[] = { +static const char * const mmcc_xo_dsibyte_hdmi_edp_gpll0[] = { "xo", "edp_link_clk", "hdmipll", @@ -172,7 +172,7 @@ static const struct parent_map mmcc_xo_mmpll0_1_4_gpll0_map[] = { { P_MMPLL4, 3 } }; -static const char *mmcc_xo_mmpll0_1_4_gpll0[] = { +static const char * const mmcc_xo_mmpll0_1_4_gpll0[] = { "xo", "mmpll0", "mmpll1", @@ -189,7 +189,7 @@ static const struct parent_map mmcc_xo_mmpll0_1_4_gpll1_0_map[] = { { P_GPLL1, 4 } }; -static const char *mmcc_xo_mmpll0_1_4_gpll1_0[] = { +static const char * const mmcc_xo_mmpll0_1_4_gpll1_0[] = { "xo", "mmpll0", "mmpll1", @@ -208,7 +208,7 @@ static const struct parent_map mmcc_xo_mmpll0_1_4_gpll1_0_sleep_map[] = { { P_MMSLEEP, 6 } }; -static const char *mmcc_xo_mmpll0_1_4_gpll1_0_sleep[] = { +static const char * const mmcc_xo_mmpll0_1_4_gpll1_0_sleep[] = { "xo", "mmpll0", "mmpll1", diff --git a/drivers/clk/qcom/mmcc-msm8960.c b/drivers/clk/qcom/mmcc-msm8960.c index 9711bca9cc06..bad02aebf959 100644 --- a/drivers/clk/qcom/mmcc-msm8960.c +++ b/drivers/clk/qcom/mmcc-msm8960.c @@ -19,6 +19,7 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/regmap.h> #include <linux/reset-controller.h> @@ -50,7 +51,7 @@ static const struct parent_map mmcc_pxo_pll8_pll2_map[] = { { P_PLL2, 1 } }; -static const char *mmcc_pxo_pll8_pll2[] = { +static const char * const mmcc_pxo_pll8_pll2[] = { "pxo", "pll8_vote", "pll2", @@ -63,7 +64,7 @@ static const struct parent_map mmcc_pxo_pll8_pll2_pll3_map[] = { { P_PLL3, 3 } }; -static const char *mmcc_pxo_pll8_pll2_pll15[] = { +static const char * const mmcc_pxo_pll8_pll2_pll15[] = { "pxo", "pll8_vote", "pll2", @@ -77,7 +78,7 @@ static const struct parent_map mmcc_pxo_pll8_pll2_pll15_map[] = { { P_PLL15, 3 } }; -static const char *mmcc_pxo_pll8_pll2_pll3[] = { +static const char * const mmcc_pxo_pll8_pll2_pll3[] = { "pxo", "pll8_vote", "pll2", @@ -508,8 +509,7 @@ static int pix_rdi_set_parent(struct clk_hw *hw, u8 index) int ret = 0; u32 val; struct clk_pix_rdi *rdi = to_clk_pix_rdi(hw); - struct clk *clk = hw->clk; - int num_parents = __clk_get_num_parents(hw->clk); + int num_parents = clk_hw_get_num_parents(hw); /* * These clocks select three inputs via two muxes. One mux selects @@ -520,7 +520,8 @@ static int pix_rdi_set_parent(struct clk_hw *hw, u8 index) * needs to be on at what time. */ for (i = 0; i < num_parents; i++) { - ret = clk_prepare_enable(clk_get_parent_by_index(clk, i)); + struct clk_hw *p = clk_hw_get_parent_by_index(hw, i); + ret = clk_prepare_enable(p->clk); if (ret) goto err; } @@ -548,8 +549,10 @@ static int pix_rdi_set_parent(struct clk_hw *hw, u8 index) udelay(1); err: - for (i--; i >= 0; i--) - clk_disable_unprepare(clk_get_parent_by_index(clk, i)); + for (i--; i >= 0; i--) { + struct clk_hw *p = clk_hw_get_parent_by_index(hw, i); + clk_disable_unprepare(p->clk); + } return ret; } @@ -579,7 +582,7 @@ static const struct clk_ops clk_ops_pix_rdi = { .determine_rate = __clk_mux_determine_rate, }; -static const char *pix_rdi_parents[] = { +static const char * const pix_rdi_parents[] = { "csi0_clk", "csi1_clk", "csi2_clk", @@ -709,7 +712,7 @@ static struct clk_rcg csiphytimer_src = { }, }; -static const char *csixphy_timer_src[] = { "csiphytimer_src" }; +static const char * const csixphy_timer_src[] = { "csiphytimer_src" }; static struct clk_branch csiphy0_timer_clk = { .halt_reg = 0x01e8, @@ -1385,7 +1388,7 @@ static const struct parent_map mmcc_pxo_hdmi_map[] = { { P_HDMI_PLL, 3 } }; -static const char *mmcc_pxo_hdmi[] = { +static const char * const mmcc_pxo_hdmi[] = { "pxo", "hdmi_pll", }; @@ -1428,7 +1431,7 @@ static struct clk_rcg tv_src = { }, }; -static const char *tv_src_name[] = { "tv_src" }; +static const char * const tv_src_name[] = { "tv_src" }; static struct clk_branch tv_enc_clk = { .halt_reg = 0x01d4, diff --git a/drivers/clk/qcom/mmcc-msm8974.c b/drivers/clk/qcom/mmcc-msm8974.c index 07f4cc159ad3..0987bf443e1f 100644 --- a/drivers/clk/qcom/mmcc-msm8974.c +++ b/drivers/clk/qcom/mmcc-msm8974.c @@ -56,7 +56,7 @@ static const struct parent_map mmcc_xo_mmpll0_mmpll1_gpll0_map[] = { { P_GPLL0, 5 } }; -static const char *mmcc_xo_mmpll0_mmpll1_gpll0[] = { +static const char * const mmcc_xo_mmpll0_mmpll1_gpll0[] = { "xo", "mmpll0_vote", "mmpll1_vote", @@ -72,7 +72,7 @@ static const struct parent_map mmcc_xo_mmpll0_dsi_hdmi_gpll0_map[] = { { P_DSI1PLL, 3 } }; -static const char *mmcc_xo_mmpll0_dsi_hdmi_gpll0[] = { +static const char * const mmcc_xo_mmpll0_dsi_hdmi_gpll0[] = { "xo", "mmpll0_vote", "hdmipll", @@ -89,7 +89,7 @@ static const struct parent_map mmcc_xo_mmpll0_1_2_gpll0_map[] = { { P_MMPLL2, 3 } }; -static const char *mmcc_xo_mmpll0_1_2_gpll0[] = { +static const char * const mmcc_xo_mmpll0_1_2_gpll0[] = { "xo", "mmpll0_vote", "mmpll1_vote", @@ -105,7 +105,7 @@ static const struct parent_map mmcc_xo_mmpll0_1_3_gpll0_map[] = { { P_MMPLL3, 3 } }; -static const char *mmcc_xo_mmpll0_1_3_gpll0[] = { +static const char * const mmcc_xo_mmpll0_1_3_gpll0[] = { "xo", "mmpll0_vote", "mmpll1_vote", @@ -121,7 +121,7 @@ static const struct parent_map mmcc_xo_mmpll0_1_gpll1_0_map[] = { { P_GPLL1, 4 } }; -static const char *mmcc_xo_mmpll0_1_gpll1_0[] = { +static const char * const mmcc_xo_mmpll0_1_gpll1_0[] = { "xo", "mmpll0_vote", "mmpll1_vote", @@ -138,7 +138,7 @@ static const struct parent_map mmcc_xo_dsi_hdmi_edp_map[] = { { P_DSI1PLL, 2 } }; -static const char *mmcc_xo_dsi_hdmi_edp[] = { +static const char * const mmcc_xo_dsi_hdmi_edp[] = { "xo", "edp_link_clk", "hdmipll", @@ -156,7 +156,7 @@ static const struct parent_map mmcc_xo_dsi_hdmi_edp_gpll0_map[] = { { P_DSI1PLL, 2 } }; -static const char *mmcc_xo_dsi_hdmi_edp_gpll0[] = { +static const char * const mmcc_xo_dsi_hdmi_edp_gpll0[] = { "xo", "edp_link_clk", "hdmipll", @@ -174,7 +174,7 @@ static const struct parent_map mmcc_xo_dsibyte_hdmi_edp_gpll0_map[] = { { P_DSI1PLL_BYTE, 2 } }; -static const char *mmcc_xo_dsibyte_hdmi_edp_gpll0[] = { +static const char * const mmcc_xo_dsibyte_hdmi_edp_gpll0[] = { "xo", "edp_link_clk", "hdmipll", diff --git a/drivers/clk/rockchip/Makefile b/drivers/clk/rockchip/Makefile index 2714097f90db..b27edd6c8183 100644 --- a/drivers/clk/rockchip/Makefile +++ b/drivers/clk/rockchip/Makefile @@ -6,8 +6,10 @@ obj-y += clk-rockchip.o obj-y += clk.o obj-y += clk-pll.o obj-y += clk-cpu.o +obj-y += clk-inverter.o obj-y += clk-mmc-phase.o obj-$(CONFIG_RESET_CONTROLLER) += softrst.o obj-y += clk-rk3188.o obj-y += clk-rk3288.o +obj-y += clk-rk3368.o diff --git a/drivers/clk/rockchip/clk-cpu.c b/drivers/clk/rockchip/clk-cpu.c index fb7721bd37e6..330870a6d8bf 100644 --- a/drivers/clk/rockchip/clk-cpu.c +++ b/drivers/clk/rockchip/clk-cpu.c @@ -35,6 +35,7 @@ #include <linux/of.h> #include <linux/slab.h> #include <linux/io.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include "clk.h" diff --git a/drivers/clk/rockchip/clk-inverter.c b/drivers/clk/rockchip/clk-inverter.c new file mode 100644 index 000000000000..7cbf43beb3c6 --- /dev/null +++ b/drivers/clk/rockchip/clk-inverter.c @@ -0,0 +1,116 @@ +/* + * Copyright 2015 Heiko Stuebner <heiko@sntech.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/slab.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/spinlock.h> +#include <linux/kernel.h> +#include "clk.h" + +struct rockchip_inv_clock { + struct clk_hw hw; + void __iomem *reg; + int shift; + int flags; + spinlock_t *lock; +}; + +#define to_inv_clock(_hw) container_of(_hw, struct rockchip_inv_clock, hw) + +#define INVERTER_MASK 0x1 + +static int rockchip_inv_get_phase(struct clk_hw *hw) +{ + struct rockchip_inv_clock *inv_clock = to_inv_clock(hw); + u32 val; + + val = readl(inv_clock->reg) >> inv_clock->shift; + val &= INVERTER_MASK; + return val ? 180 : 0; +} + +static int rockchip_inv_set_phase(struct clk_hw *hw, int degrees) +{ + struct rockchip_inv_clock *inv_clock = to_inv_clock(hw); + u32 val; + + if (degrees % 180 == 0) { + val = !!degrees; + } else { + pr_err("%s: unsupported phase %d for %s\n", + __func__, degrees, clk_hw_get_name(hw)); + return -EINVAL; + } + + if (inv_clock->flags & ROCKCHIP_INVERTER_HIWORD_MASK) { + writel(HIWORD_UPDATE(val, INVERTER_MASK, inv_clock->shift), + inv_clock->reg); + } else { + unsigned long flags; + u32 reg; + + spin_lock_irqsave(inv_clock->lock, flags); + + reg = readl(inv_clock->reg); + reg &= ~BIT(inv_clock->shift); + reg |= val; + writel(reg, inv_clock->reg); + + spin_unlock_irqrestore(inv_clock->lock, flags); + } + + return 0; +} + +static const struct clk_ops rockchip_inv_clk_ops = { + .get_phase = rockchip_inv_get_phase, + .set_phase = rockchip_inv_set_phase, +}; + +struct clk *rockchip_clk_register_inverter(const char *name, + const char *const *parent_names, u8 num_parents, + void __iomem *reg, int shift, int flags, + spinlock_t *lock) +{ + struct clk_init_data init; + struct rockchip_inv_clock *inv_clock; + struct clk *clk; + + inv_clock = kmalloc(sizeof(*inv_clock), GFP_KERNEL); + if (!inv_clock) + return NULL; + + init.name = name; + init.num_parents = num_parents; + init.flags = CLK_SET_RATE_PARENT; + init.parent_names = parent_names; + init.ops = &rockchip_inv_clk_ops; + + inv_clock->hw.init = &init; + inv_clock->reg = reg; + inv_clock->shift = shift; + inv_clock->flags = flags; + inv_clock->lock = lock; + + clk = clk_register(NULL, &inv_clock->hw); + if (IS_ERR(clk)) + goto err_free; + + return clk; + +err_free: + kfree(inv_clock); + return NULL; +} diff --git a/drivers/clk/rockchip/clk-mmc-phase.c b/drivers/clk/rockchip/clk-mmc-phase.c index e9f8df324e7c..9b613426e968 100644 --- a/drivers/clk/rockchip/clk-mmc-phase.c +++ b/drivers/clk/rockchip/clk-mmc-phase.c @@ -14,7 +14,10 @@ */ #include <linux/slab.h> +#include <linux/clk.h> #include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/kernel.h> #include "clk.h" struct rockchip_mmc_clock { @@ -105,7 +108,7 @@ static int rockchip_mmc_set_phase(struct clk_hw *hw, int degrees) writel(HIWORD_UPDATE(raw_value, 0x07ff, mmc_clock->shift), mmc_clock->reg); pr_debug("%s->set_phase(%d) delay_nums=%u reg[0x%p]=0x%03x actual_degrees=%d\n", - __clk_get_name(hw->clk), degrees, delay_num, + clk_hw_get_name(hw), degrees, delay_num, mmc_clock->reg, raw_value>>(mmc_clock->shift), rockchip_mmc_get_phase(hw) ); @@ -131,6 +134,7 @@ struct clk *rockchip_clk_register_mmc(const char *name, if (!mmc_clock) return NULL; + init.name = name; init.num_parents = num_parents; init.parent_names = parent_names; init.ops = &rockchip_mmc_clk_ops; @@ -139,9 +143,6 @@ struct clk *rockchip_clk_register_mmc(const char *name, mmc_clock->reg = reg; mmc_clock->shift = shift; - if (name) - init.name = name; - clk = clk_register(NULL, &mmc_clock->hw); if (IS_ERR(clk)) goto err_free; diff --git a/drivers/clk/rockchip/clk-pll.c b/drivers/clk/rockchip/clk-pll.c index 76027261f7ed..7737a1df1e4b 100644 --- a/drivers/clk/rockchip/clk-pll.c +++ b/drivers/clk/rockchip/clk-pll.c @@ -17,7 +17,6 @@ #include <linux/slab.h> #include <linux/io.h> #include <linux/delay.h> -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/regmap.h> #include "clk.h" @@ -121,8 +120,8 @@ static int rockchip_pll_wait_lock(struct rockchip_clk_pll *pll) #define RK3066_PLLCON0_NR_SHIFT 8 #define RK3066_PLLCON1_NF_MASK 0x1fff #define RK3066_PLLCON1_NF_SHIFT 0 -#define RK3066_PLLCON2_BWADJ_MASK 0xfff -#define RK3066_PLLCON2_BWADJ_SHIFT 0 +#define RK3066_PLLCON2_NB_MASK 0xfff +#define RK3066_PLLCON2_NB_SHIFT 0 #define RK3066_PLLCON3_RESET (1 << 5) #define RK3066_PLLCON3_PWRDOWN (1 << 1) #define RK3066_PLLCON3_BYPASS (1 << 0) @@ -137,7 +136,7 @@ static unsigned long rockchip_rk3066_pll_recalc_rate(struct clk_hw *hw, pllcon = readl_relaxed(pll->reg_base + RK3066_PLLCON(3)); if (pllcon & RK3066_PLLCON3_BYPASS) { pr_debug("%s: pll %s is bypassed\n", __func__, - __clk_get_name(hw->clk)); + clk_hw_get_name(hw)); return prate; } @@ -175,13 +174,13 @@ static int rockchip_rk3066_pll_set_rate(struct clk_hw *hw, unsigned long drate, } pr_debug("%s: changing %s from %lu to %lu with a parent rate of %lu\n", - __func__, __clk_get_name(hw->clk), old_rate, drate, prate); + __func__, clk_hw_get_name(hw), old_rate, drate, prate); /* Get required rate settings from table */ rate = rockchip_get_pll_settings(pll, drate); if (!rate) { pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__, - drate, __clk_get_name(hw->clk)); + drate, clk_hw_get_name(hw)); return -EINVAL; } @@ -208,8 +207,8 @@ static int rockchip_rk3066_pll_set_rate(struct clk_hw *hw, unsigned long drate, writel_relaxed(HIWORD_UPDATE(rate->nf - 1, RK3066_PLLCON1_NF_MASK, RK3066_PLLCON1_NF_SHIFT), pll->reg_base + RK3066_PLLCON(1)); - writel_relaxed(HIWORD_UPDATE(rate->bwadj, RK3066_PLLCON2_BWADJ_MASK, - RK3066_PLLCON2_BWADJ_SHIFT), + writel_relaxed(HIWORD_UPDATE(rate->nb - 1, RK3066_PLLCON2_NB_MASK, + RK3066_PLLCON2_NB_SHIFT), pll->reg_base + RK3066_PLLCON(2)); /* leave reset and wait the reset_delay */ @@ -262,14 +261,14 @@ static void rockchip_rk3066_pll_init(struct clk_hw *hw) { struct rockchip_clk_pll *pll = to_rockchip_clk_pll(hw); const struct rockchip_pll_rate_table *rate; - unsigned int nf, nr, no, bwadj; + unsigned int nf, nr, no, nb; unsigned long drate; u32 pllcon; if (!(pll->flags & ROCKCHIP_PLL_SYNC_RATE)) return; - drate = __clk_get_rate(hw->clk); + drate = clk_hw_get_rate(hw); rate = rockchip_get_pll_settings(pll, drate); /* when no rate setting for the current rate, rely on clk_set_rate */ @@ -284,25 +283,25 @@ static void rockchip_rk3066_pll_init(struct clk_hw *hw) nf = ((pllcon >> RK3066_PLLCON1_NF_SHIFT) & RK3066_PLLCON1_NF_MASK) + 1; pllcon = readl_relaxed(pll->reg_base + RK3066_PLLCON(2)); - bwadj = (pllcon >> RK3066_PLLCON2_BWADJ_SHIFT) & RK3066_PLLCON2_BWADJ_MASK; + nb = ((pllcon >> RK3066_PLLCON2_NB_SHIFT) & RK3066_PLLCON2_NB_MASK) + 1; - pr_debug("%s: pll %s@%lu: nr (%d:%d); no (%d:%d); nf(%d:%d), bwadj(%d:%d)\n", - __func__, __clk_get_name(hw->clk), drate, rate->nr, nr, - rate->no, no, rate->nf, nf, rate->bwadj, bwadj); + pr_debug("%s: pll %s@%lu: nr (%d:%d); no (%d:%d); nf(%d:%d), nb(%d:%d)\n", + __func__, clk_hw_get_name(hw), drate, rate->nr, nr, + rate->no, no, rate->nf, nf, rate->nb, nb); if (rate->nr != nr || rate->no != no || rate->nf != nf - || rate->bwadj != bwadj) { - struct clk *parent = __clk_get_parent(hw->clk); + || rate->nb != nb) { + struct clk_hw *parent = clk_hw_get_parent(hw); unsigned long prate; if (!parent) { pr_warn("%s: parent of %s not available\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); return; } pr_debug("%s: pll %s: rate params do not match rate table, adjusting\n", - __func__, __clk_get_name(hw->clk)); - prate = __clk_get_rate(parent); + __func__, clk_hw_get_name(hw)); + prate = clk_hw_get_rate(parent); rockchip_rk3066_pll_set_rate(hw, drate, prate); } } @@ -354,6 +353,35 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, if (!pll) return ERR_PTR(-ENOMEM); + /* create the mux on top of the real pll */ + pll->pll_mux_ops = &clk_mux_ops; + pll_mux = &pll->pll_mux; + pll_mux->reg = base + mode_offset; + pll_mux->shift = mode_shift; + pll_mux->mask = PLL_MODE_MASK; + pll_mux->flags = 0; + pll_mux->lock = lock; + pll_mux->hw.init = &init; + + if (pll_type == pll_rk3066) + pll_mux->flags |= CLK_MUX_HIWORD_MASK; + + /* the actual muxing is xin24m, pll-output, xin32k */ + pll_parents[0] = parent_names[0]; + pll_parents[1] = pll_name; + pll_parents[2] = parent_names[1]; + + init.name = name; + init.flags = CLK_SET_RATE_PARENT; + init.ops = pll->pll_mux_ops; + init.parent_names = pll_parents; + init.num_parents = ARRAY_SIZE(pll_parents); + + mux_clk = clk_register(NULL, &pll_mux->hw); + if (IS_ERR(mux_clk)) + goto err_mux; + + /* now create the actual pll */ init.name = pll_name; /* keep all plls untouched for now */ @@ -399,47 +427,19 @@ struct clk *rockchip_clk_register_pll(enum rockchip_pll_type pll_type, pll->flags = clk_pll_flags; pll->lock = lock; - /* create the mux on top of the real pll */ - pll->pll_mux_ops = &clk_mux_ops; - pll_mux = &pll->pll_mux; - pll_mux->reg = base + mode_offset; - pll_mux->shift = mode_shift; - pll_mux->mask = PLL_MODE_MASK; - pll_mux->flags = 0; - pll_mux->lock = lock; - pll_mux->hw.init = &init; - - if (pll_type == pll_rk3066) - pll_mux->flags |= CLK_MUX_HIWORD_MASK; - pll_clk = clk_register(NULL, &pll->hw); if (IS_ERR(pll_clk)) { pr_err("%s: failed to register pll clock %s : %ld\n", __func__, name, PTR_ERR(pll_clk)); - mux_clk = pll_clk; goto err_pll; } - /* the actual muxing is xin24m, pll-output, xin32k */ - pll_parents[0] = parent_names[0]; - pll_parents[1] = pll_name; - pll_parents[2] = parent_names[1]; - - init.name = name; - init.flags = CLK_SET_RATE_PARENT; - init.ops = pll->pll_mux_ops; - init.parent_names = pll_parents; - init.num_parents = ARRAY_SIZE(pll_parents); - - mux_clk = clk_register(NULL, &pll_mux->hw); - if (IS_ERR(mux_clk)) - goto err_mux; - return mux_clk; -err_mux: - clk_unregister(pll_clk); err_pll: + clk_unregister(mux_clk); + mux_clk = pll_clk; +err_mux: kfree(pll); return mux_clk; } diff --git a/drivers/clk/rockchip/clk-rk3188.c b/drivers/clk/rockchip/clk-rk3188.c index e4f9d472f1ff..ed02bbc7b11f 100644 --- a/drivers/clk/rockchip/clk-rk3188.c +++ b/drivers/clk/rockchip/clk-rk3188.c @@ -13,6 +13,7 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> @@ -201,7 +202,7 @@ PNAME(mux_pll_src_cpll_gpll_p) = { "cpll", "gpll" }; PNAME(mux_aclk_cpu_p) = { "apll", "gpll" }; PNAME(mux_sclk_cif0_p) = { "cif0_pre", "xin24m" }; PNAME(mux_sclk_i2s0_p) = { "i2s0_pre", "i2s0_frac", "xin12m" }; -PNAME(mux_sclk_spdif_p) = { "spdif_src", "spdif_frac", "xin12m" }; +PNAME(mux_sclk_spdif_p) = { "spdif_pre", "spdif_frac", "xin12m" }; PNAME(mux_sclk_uart0_p) = { "uart0_pre", "uart0_frac", "xin24m" }; PNAME(mux_sclk_uart1_p) = { "uart1_pre", "uart1_frac", "xin24m" }; PNAME(mux_sclk_uart2_p) = { "uart2_pre", "uart2_frac", "xin24m" }; @@ -235,6 +236,7 @@ static struct rockchip_pll_clock rk3188_pll_clks[] __initdata = { #define MFLAGS CLK_MUX_HIWORD_MASK #define DFLAGS CLK_DIVIDER_HIWORD_MASK #define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE) +#define IFLAGS ROCKCHIP_INVERTER_HIWORD_MASK /* 2 ^ (val + 1) */ static struct clk_div_table div_core_peri_t[] = { @@ -310,6 +312,8 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { GATE(0, "pclkin_cif0", "ext_cif0", 0, RK2928_CLKGATE_CON(3), 3, GFLAGS), + INVERTER(0, "pclk_cif0", "pclkin_cif0", + RK2928_CLKSEL_CON(30), 8, IFLAGS), /* * the 480m are generated inside the usb block from these clocks, @@ -334,8 +338,10 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { COMPOSITE_FRAC(0, "hsadc_frac", "hsadc_src", 0, RK2928_CLKSEL_CON(23), 0, RK2928_CLKGATE_CON(2), 7, GFLAGS), - MUX(SCLK_HSADC, "sclk_hsadc", mux_sclk_hsadc_p, 0, + MUX(0, "sclk_hsadc_out", mux_sclk_hsadc_p, 0, RK2928_CLKSEL_CON(22), 4, 2, MFLAGS), + INVERTER(SCLK_HSADC, "sclk_hsadc", "sclk_hsadc_out", + RK2928_CLKSEL_CON(22), 7, IFLAGS), COMPOSITE_NOMUX(SCLK_SARADC, "sclk_saradc", "xin24m", 0, RK2928_CLKSEL_CON(24), 8, 8, DFLAGS, @@ -344,10 +350,10 @@ static struct rockchip_clk_branch common_clk_branches[] __initdata = { COMPOSITE_NOMUX(0, "spdif_pre", "i2s_src", 0, RK2928_CLKSEL_CON(5), 0, 7, DFLAGS, RK2928_CLKGATE_CON(0), 13, GFLAGS), - COMPOSITE_FRAC(0, "spdif_frac", "spdif_pll", 0, + COMPOSITE_FRAC(0, "spdif_frac", "spdif_pre", CLK_SET_RATE_PARENT, RK2928_CLKSEL_CON(9), 0, RK2928_CLKGATE_CON(0), 14, GFLAGS), - MUX(SCLK_SPDIF, "sclk_spdif", mux_sclk_spdif_p, 0, + MUX(SCLK_SPDIF, "sclk_spdif", mux_sclk_spdif_p, CLK_SET_RATE_PARENT, RK2928_CLKSEL_CON(5), 8, 2, MFLAGS), /* @@ -557,6 +563,8 @@ static struct rockchip_clk_branch rk3066a_clk_branches[] __initdata = { GATE(0, "pclkin_cif1", "ext_cif1", 0, RK2928_CLKGATE_CON(3), 4, GFLAGS), + INVERTER(0, "pclk_cif1", "pclkin_cif1", + RK2928_CLKSEL_CON(30), 12, IFLAGS), COMPOSITE(0, "aclk_gpu_src", mux_pll_src_cpll_gpll_p, 0, RK2928_CLKSEL_CON(33), 8, 1, MFLAGS, 0, 5, DFLAGS, @@ -809,7 +817,7 @@ static void __init rk3188_clk_init(struct device_node *np) rate = pll->rate_table; while (rate->rate > 0) { - rate->bwadj = 0; + rate->nb = 1; rate++; } } diff --git a/drivers/clk/rockchip/clk-rk3288.c b/drivers/clk/rockchip/clk-rk3288.c index 4f817ed9e6ee..0df5bae9ddbf 100644 --- a/drivers/clk/rockchip/clk-rk3288.c +++ b/drivers/clk/rockchip/clk-rk3288.c @@ -84,7 +84,7 @@ static struct rockchip_pll_rate_table rk3288_pll_rates[] = { RK3066_PLL_RATE( 742500000, 8, 495, 2), RK3066_PLL_RATE( 696000000, 1, 58, 2), RK3066_PLL_RATE( 600000000, 1, 50, 2), - RK3066_PLL_RATE_BWADJ(594000000, 1, 198, 8, 1), + RK3066_PLL_RATE_NB(594000000, 1, 198, 8, 1), RK3066_PLL_RATE( 552000000, 1, 46, 2), RK3066_PLL_RATE( 504000000, 1, 84, 4), RK3066_PLL_RATE( 500000000, 3, 125, 2), @@ -189,7 +189,7 @@ PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" }; PNAME(mux_uart2_p) = { "uart2_src", "uart2_frac", "xin24m" }; PNAME(mux_uart3_p) = { "uart3_src", "uart3_frac", "xin24m" }; PNAME(mux_uart4_p) = { "uart4_src", "uart4_frac", "xin24m" }; -PNAME(mux_cif_out_p) = { "cif_src", "xin24m" }; +PNAME(mux_vip_out_p) = { "vip_src", "xin24m" }; PNAME(mux_mac_p) = { "mac_pll_src", "ext_gmac" }; PNAME(mux_hsadcout_p) = { "hsadc_src", "ext_hsadc" }; PNAME(mux_edp_24m_p) = { "ext_edp_24m", "xin24m" }; @@ -223,6 +223,7 @@ static struct clk_div_table div_hclk_cpu_t[] = { #define MFLAGS CLK_MUX_HIWORD_MASK #define DFLAGS CLK_DIVIDER_HIWORD_MASK #define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE) +#define IFLAGS ROCKCHIP_INVERTER_HIWORD_MASK static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { /* @@ -434,7 +435,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE_NODIV(0, "vip_src", mux_pll_src_cpll_gpll_p, 0, RK3288_CLKSEL_CON(26), 8, 1, MFLAGS, RK3288_CLKGATE_CON(3), 7, GFLAGS), - COMPOSITE_NOGATE(0, "sclk_vip_out", mux_cif_out_p, 0, + COMPOSITE_NOGATE(0, "sclk_vip_out", mux_vip_out_p, 0, RK3288_CLKSEL_CON(26), 15, 1, MFLAGS, 9, 5, DFLAGS), DIV(0, "pclk_pd_alive", "gpll", 0, @@ -578,7 +579,7 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE(0, "mac_pll_src", mux_pll_src_npll_cpll_gpll_p, 0, RK3288_CLKSEL_CON(21), 0, 2, MFLAGS, 8, 5, DFLAGS, RK3288_CLKGATE_CON(2), 5, GFLAGS), - MUX(SCLK_MAC, "mac_clk", mux_mac_p, 0, + MUX(SCLK_MAC, "mac_clk", mux_mac_p, CLK_SET_RATE_PARENT, RK3288_CLKSEL_CON(21), 4, 1, MFLAGS), GATE(SCLK_MACREF_OUT, "sclk_macref_out", "mac_clk", 0, RK3288_CLKGATE_CON(5), 3, GFLAGS), @@ -592,8 +593,10 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { COMPOSITE(0, "hsadc_src", mux_pll_src_cpll_gpll_p, 0, RK3288_CLKSEL_CON(22), 0, 1, MFLAGS, 8, 8, DFLAGS, RK3288_CLKGATE_CON(2), 6, GFLAGS), - MUX(SCLK_HSADC, "sclk_hsadc_out", mux_hsadcout_p, 0, + MUX(0, "sclk_hsadc_out", mux_hsadcout_p, 0, RK3288_CLKSEL_CON(22), 4, 1, MFLAGS), + INVERTER(SCLK_HSADC, "sclk_hsadc", "sclk_hsadc_out", + RK3288_CLKSEL_CON(22), 7, IFLAGS), GATE(0, "jtag", "ext_jtag", 0, RK3288_CLKGATE_CON(4), 14, GFLAGS), @@ -768,7 +771,9 @@ static struct rockchip_clk_branch rk3288_clk_branches[] __initdata = { */ GATE(0, "pclk_vip_in", "ext_vip", 0, RK3288_CLKGATE_CON(16), 0, GFLAGS), + INVERTER(0, "pclk_vip", "pclk_vip_in", RK3288_CLKSEL_CON(29), 4, IFLAGS), GATE(0, "pclk_isp_in", "ext_isp", 0, RK3288_CLKGATE_CON(16), 3, GFLAGS), + INVERTER(0, "pclk_isp", "pclk_isp_in", RK3288_CLKSEL_CON(29), 3, IFLAGS), }; static const char *const rk3288_critical_clocks[] __initconst = { diff --git a/drivers/clk/rockchip/clk-rk3368.c b/drivers/clk/rockchip/clk-rk3368.c new file mode 100644 index 000000000000..9c5d61e698ef --- /dev/null +++ b/drivers/clk/rockchip/clk-rk3368.c @@ -0,0 +1,881 @@ +/* + * Copyright (c) 2015 Heiko Stuebner <heiko@sntech.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk-provider.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/platform_device.h> +#include <dt-bindings/clock/rk3368-cru.h> +#include "clk.h" + +#define RK3368_GRF_SOC_STATUS0 0x480 + +enum rk3368_plls { + apllb, aplll, dpll, cpll, gpll, npll, +}; + +static struct rockchip_pll_rate_table rk3368_pll_rates[] = { + RK3066_PLL_RATE(2208000000, 1, 92, 1), + RK3066_PLL_RATE(2184000000, 1, 91, 1), + RK3066_PLL_RATE(2160000000, 1, 90, 1), + RK3066_PLL_RATE(2136000000, 1, 89, 1), + RK3066_PLL_RATE(2112000000, 1, 88, 1), + RK3066_PLL_RATE(2088000000, 1, 87, 1), + RK3066_PLL_RATE(2064000000, 1, 86, 1), + RK3066_PLL_RATE(2040000000, 1, 85, 1), + RK3066_PLL_RATE(2016000000, 1, 84, 1), + RK3066_PLL_RATE(1992000000, 1, 83, 1), + RK3066_PLL_RATE(1968000000, 1, 82, 1), + RK3066_PLL_RATE(1944000000, 1, 81, 1), + RK3066_PLL_RATE(1920000000, 1, 80, 1), + RK3066_PLL_RATE(1896000000, 1, 79, 1), + RK3066_PLL_RATE(1872000000, 1, 78, 1), + RK3066_PLL_RATE(1848000000, 1, 77, 1), + RK3066_PLL_RATE(1824000000, 1, 76, 1), + RK3066_PLL_RATE(1800000000, 1, 75, 1), + RK3066_PLL_RATE(1776000000, 1, 74, 1), + RK3066_PLL_RATE(1752000000, 1, 73, 1), + RK3066_PLL_RATE(1728000000, 1, 72, 1), + RK3066_PLL_RATE(1704000000, 1, 71, 1), + RK3066_PLL_RATE(1680000000, 1, 70, 1), + RK3066_PLL_RATE(1656000000, 1, 69, 1), + RK3066_PLL_RATE(1632000000, 1, 68, 1), + RK3066_PLL_RATE(1608000000, 1, 67, 1), + RK3066_PLL_RATE(1560000000, 1, 65, 1), + RK3066_PLL_RATE(1512000000, 1, 63, 1), + RK3066_PLL_RATE(1488000000, 1, 62, 1), + RK3066_PLL_RATE(1464000000, 1, 61, 1), + RK3066_PLL_RATE(1440000000, 1, 60, 1), + RK3066_PLL_RATE(1416000000, 1, 59, 1), + RK3066_PLL_RATE(1392000000, 1, 58, 1), + RK3066_PLL_RATE(1368000000, 1, 57, 1), + RK3066_PLL_RATE(1344000000, 1, 56, 1), + RK3066_PLL_RATE(1320000000, 1, 55, 1), + RK3066_PLL_RATE(1296000000, 1, 54, 1), + RK3066_PLL_RATE(1272000000, 1, 53, 1), + RK3066_PLL_RATE(1248000000, 1, 52, 1), + RK3066_PLL_RATE(1224000000, 1, 51, 1), + RK3066_PLL_RATE(1200000000, 1, 50, 1), + RK3066_PLL_RATE(1176000000, 1, 49, 1), + RK3066_PLL_RATE(1128000000, 1, 47, 1), + RK3066_PLL_RATE(1104000000, 1, 46, 1), + RK3066_PLL_RATE(1008000000, 1, 84, 2), + RK3066_PLL_RATE( 912000000, 1, 76, 2), + RK3066_PLL_RATE( 888000000, 1, 74, 2), + RK3066_PLL_RATE( 816000000, 1, 68, 2), + RK3066_PLL_RATE( 792000000, 1, 66, 2), + RK3066_PLL_RATE( 696000000, 1, 58, 2), + RK3066_PLL_RATE( 672000000, 1, 56, 2), + RK3066_PLL_RATE( 648000000, 1, 54, 2), + RK3066_PLL_RATE( 624000000, 1, 52, 2), + RK3066_PLL_RATE( 600000000, 1, 50, 2), + RK3066_PLL_RATE( 576000000, 1, 48, 2), + RK3066_PLL_RATE( 552000000, 1, 46, 2), + RK3066_PLL_RATE( 528000000, 1, 88, 4), + RK3066_PLL_RATE( 504000000, 1, 84, 4), + RK3066_PLL_RATE( 480000000, 1, 80, 4), + RK3066_PLL_RATE( 456000000, 1, 76, 4), + RK3066_PLL_RATE( 408000000, 1, 68, 4), + RK3066_PLL_RATE( 312000000, 1, 52, 4), + RK3066_PLL_RATE( 252000000, 1, 84, 8), + RK3066_PLL_RATE( 216000000, 1, 72, 8), + RK3066_PLL_RATE( 126000000, 2, 84, 8), + RK3066_PLL_RATE( 48000000, 2, 32, 8), + { /* sentinel */ }, +}; + +PNAME(mux_pll_p) = { "xin24m", "xin32k" }; +PNAME(mux_armclkb_p) = { "apllb_core", "gpllb_core" }; +PNAME(mux_armclkl_p) = { "aplll_core", "gplll_core" }; +PNAME(mux_ddrphy_p) = { "dpll_ddr", "gpll_ddr" }; +PNAME(mux_cs_src_p) = { "apllb_cs", "aplll_cs", "gpll_cs"}; +PNAME(mux_aclk_bus_src_p) = { "cpll_aclk_bus", "gpll_aclk_bus" }; + +PNAME(mux_pll_src_cpll_gpll_p) = { "cpll", "gpll" }; +PNAME(mux_pll_src_cpll_gpll_npll_p) = { "cpll", "gpll", "npll" }; +PNAME(mux_pll_src_npll_cpll_gpll_p) = { "npll", "cpll", "gpll" }; +PNAME(mux_pll_src_cpll_gpll_usb_p) = { "cpll", "gpll", "usbphy_480m" }; +PNAME(mux_pll_src_cpll_gpll_usb_usb_p) = { "cpll", "gpll", "usbphy_480m", + "usbphy_480m" }; +PNAME(mux_pll_src_cpll_gpll_usb_npll_p) = { "cpll", "gpll", "usbphy_480m", + "npll" }; +PNAME(mux_pll_src_cpll_gpll_npll_npll_p) = { "cpll", "gpll", "npll", "npll" }; +PNAME(mux_pll_src_cpll_gpll_npll_usb_p) = { "cpll", "gpll", "npll", + "usbphy_480m" }; + +PNAME(mux_i2s_8ch_pre_p) = { "i2s_8ch_src", "i2s_8ch_frac", + "ext_i2s", "xin12m" }; +PNAME(mux_i2s_8ch_clkout_p) = { "i2s_8ch_pre", "xin12m" }; +PNAME(mux_i2s_2ch_p) = { "i2s_2ch_src", "i2s_2ch_frac", + "dummy", "xin12m" }; +PNAME(mux_spdif_8ch_p) = { "spdif_8ch_pre", "spdif_8ch_frac", + "ext_i2s", "xin12m" }; +PNAME(mux_edp_24m_p) = { "dummy", "xin24m" }; +PNAME(mux_vip_out_p) = { "vip_src", "xin24m" }; +PNAME(mux_usbphy480m_p) = { "usbotg_out", "xin24m" }; +PNAME(mux_hsic_usbphy480m_p) = { "usbotg_out", "dummy" }; +PNAME(mux_hsicphy480m_p) = { "cpll", "gpll", "usbphy_480m" }; +PNAME(mux_uart0_p) = { "uart0_src", "uart0_frac", "xin24m" }; +PNAME(mux_uart1_p) = { "uart1_src", "uart1_frac", "xin24m" }; +PNAME(mux_uart2_p) = { "uart2_src", "xin24m" }; +PNAME(mux_uart3_p) = { "uart3_src", "uart3_frac", "xin24m" }; +PNAME(mux_uart4_p) = { "uart4_src", "uart4_frac", "xin24m" }; +PNAME(mux_mac_p) = { "mac_pll_src", "ext_gmac" }; +PNAME(mux_mmc_src_p) = { "cpll", "gpll", "usbphy_480m", "xin24m" }; + +static struct rockchip_pll_clock rk3368_pll_clks[] __initdata = { + [apllb] = PLL(pll_rk3066, PLL_APLLB, "apllb", mux_pll_p, 0, RK3368_PLL_CON(0), + RK3368_PLL_CON(3), 8, 1, 0, rk3368_pll_rates), + [aplll] = PLL(pll_rk3066, PLL_APLLL, "aplll", mux_pll_p, 0, RK3368_PLL_CON(4), + RK3368_PLL_CON(7), 8, 0, 0, rk3368_pll_rates), + [dpll] = PLL(pll_rk3066, PLL_DPLL, "dpll", mux_pll_p, 0, RK3368_PLL_CON(8), + RK3368_PLL_CON(11), 8, 2, 0, NULL), + [cpll] = PLL(pll_rk3066, PLL_CPLL, "cpll", mux_pll_p, 0, RK3368_PLL_CON(12), + RK3368_PLL_CON(15), 8, 3, ROCKCHIP_PLL_SYNC_RATE, rk3368_pll_rates), + [gpll] = PLL(pll_rk3066, PLL_GPLL, "gpll", mux_pll_p, 0, RK3368_PLL_CON(16), + RK3368_PLL_CON(19), 8, 4, ROCKCHIP_PLL_SYNC_RATE, rk3368_pll_rates), + [npll] = PLL(pll_rk3066, PLL_NPLL, "npll", mux_pll_p, 0, RK3368_PLL_CON(20), + RK3368_PLL_CON(23), 8, 5, ROCKCHIP_PLL_SYNC_RATE, rk3368_pll_rates), +}; + +static struct clk_div_table div_ddrphy_t[] = { + { .val = 0, .div = 1 }, + { .val = 1, .div = 2 }, + { .val = 3, .div = 4 }, + { /* sentinel */ }, +}; + +#define MFLAGS CLK_MUX_HIWORD_MASK +#define DFLAGS CLK_DIVIDER_HIWORD_MASK +#define GFLAGS (CLK_GATE_HIWORD_MASK | CLK_GATE_SET_TO_DISABLE) +#define IFLAGS ROCKCHIP_INVERTER_HIWORD_MASK + +static const struct rockchip_cpuclk_reg_data rk3368_cpuclkb_data = { + .core_reg = RK3368_CLKSEL_CON(0), + .div_core_shift = 0, + .div_core_mask = 0x1f, + .mux_core_shift = 15, +}; + +static const struct rockchip_cpuclk_reg_data rk3368_cpuclkl_data = { + .core_reg = RK3368_CLKSEL_CON(2), + .div_core_shift = 0, + .div_core_mask = 0x1f, + .mux_core_shift = 7, +}; + +#define RK3368_DIV_ACLKM_MASK 0x1f +#define RK3368_DIV_ACLKM_SHIFT 8 +#define RK3368_DIV_ATCLK_MASK 0x1f +#define RK3368_DIV_ATCLK_SHIFT 0 +#define RK3368_DIV_PCLK_DBG_MASK 0x1f +#define RK3368_DIV_PCLK_DBG_SHIFT 8 + +#define RK3368_CLKSEL0(_offs, _aclkm) \ + { \ + .reg = RK3288_CLKSEL_CON(0 + _offs), \ + .val = HIWORD_UPDATE(_aclkm, RK3368_DIV_ACLKM_MASK, \ + RK3368_DIV_ACLKM_SHIFT), \ + } +#define RK3368_CLKSEL1(_offs, _atclk, _pdbg) \ + { \ + .reg = RK3288_CLKSEL_CON(1 + _offs), \ + .val = HIWORD_UPDATE(_atclk, RK3368_DIV_ATCLK_MASK, \ + RK3368_DIV_ATCLK_SHIFT) | \ + HIWORD_UPDATE(_pdbg, RK3368_DIV_PCLK_DBG_MASK, \ + RK3368_DIV_PCLK_DBG_SHIFT), \ + } + +/* cluster_b: aclkm in clksel0, rest in clksel1 */ +#define RK3368_CPUCLKB_RATE(_prate, _aclkm, _atclk, _pdbg) \ + { \ + .prate = _prate, \ + .divs = { \ + RK3368_CLKSEL0(0, _aclkm), \ + RK3368_CLKSEL1(0, _atclk, _pdbg), \ + }, \ + } + +/* cluster_l: aclkm in clksel2, rest in clksel3 */ +#define RK3368_CPUCLKL_RATE(_prate, _aclkm, _atclk, _pdbg) \ + { \ + .prate = _prate, \ + .divs = { \ + RK3368_CLKSEL0(2, _aclkm), \ + RK3368_CLKSEL1(2, _atclk, _pdbg), \ + }, \ + } + +static struct rockchip_cpuclk_rate_table rk3368_cpuclkb_rates[] __initdata = { + RK3368_CPUCLKB_RATE(1512000000, 2, 6, 6), + RK3368_CPUCLKB_RATE(1488000000, 2, 5, 5), + RK3368_CPUCLKB_RATE(1416000000, 2, 5, 5), + RK3368_CPUCLKB_RATE(1200000000, 2, 4, 4), + RK3368_CPUCLKB_RATE(1008000000, 2, 4, 4), + RK3368_CPUCLKB_RATE( 816000000, 2, 3, 3), + RK3368_CPUCLKB_RATE( 696000000, 2, 3, 3), + RK3368_CPUCLKB_RATE( 600000000, 2, 2, 2), + RK3368_CPUCLKB_RATE( 408000000, 2, 2, 2), + RK3368_CPUCLKB_RATE( 312000000, 2, 2, 2), +}; + +static struct rockchip_cpuclk_rate_table rk3368_cpuclkl_rates[] __initdata = { + RK3368_CPUCLKL_RATE(1512000000, 2, 7, 7), + RK3368_CPUCLKL_RATE(1488000000, 2, 6, 6), + RK3368_CPUCLKL_RATE(1416000000, 2, 6, 6), + RK3368_CPUCLKL_RATE(1200000000, 2, 5, 5), + RK3368_CPUCLKL_RATE(1008000000, 2, 5, 5), + RK3368_CPUCLKL_RATE( 816000000, 2, 4, 4), + RK3368_CPUCLKL_RATE( 696000000, 2, 3, 3), + RK3368_CPUCLKL_RATE( 600000000, 2, 3, 3), + RK3368_CPUCLKL_RATE( 408000000, 2, 2, 2), + RK3368_CPUCLKL_RATE( 312000000, 2, 2, 2), +}; + +static struct rockchip_clk_branch rk3368_clk_branches[] __initdata = { + /* + * Clock-Architecture Diagram 2 + */ + + MUX(SCLK_USBPHY480M, "usbphy_480m", mux_usbphy480m_p, CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(13), 8, 1, MFLAGS), + + GATE(0, "apllb_core", "apllb", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(0), 0, GFLAGS), + GATE(0, "gpllb_core", "gpll", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(0), 1, GFLAGS), + + GATE(0, "aplll_core", "aplll", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(0), 4, GFLAGS), + GATE(0, "gplll_core", "gpll", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(0), 5, GFLAGS), + + DIV(0, "aclkm_core_b", "armclkb", 0, + RK3368_CLKSEL_CON(0), 8, 5, DFLAGS | CLK_DIVIDER_READ_ONLY), + DIV(0, "atclk_core_b", "armclkb", 0, + RK3368_CLKSEL_CON(1), 0, 5, DFLAGS | CLK_DIVIDER_READ_ONLY), + DIV(0, "pclk_dbg_b", "armclkb", 0, + RK3368_CLKSEL_CON(1), 8, 5, DFLAGS | CLK_DIVIDER_READ_ONLY), + + DIV(0, "aclkm_core_l", "armclkl", 0, + RK3368_CLKSEL_CON(2), 8, 5, DFLAGS | CLK_DIVIDER_READ_ONLY), + DIV(0, "atclk_core_l", "armclkl", 0, + RK3368_CLKSEL_CON(3), 0, 5, DFLAGS | CLK_DIVIDER_READ_ONLY), + DIV(0, "pclk_dbg_l", "armclkl", 0, + RK3368_CLKSEL_CON(3), 8, 5, DFLAGS | CLK_DIVIDER_READ_ONLY), + + GATE(0, "apllb_cs", "apllb", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(0), 9, GFLAGS), + GATE(0, "aplll_cs", "aplll", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(0), 10, GFLAGS), + GATE(0, "gpll_cs", "gpll", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(0), 8, GFLAGS), + COMPOSITE_NOGATE(0, "sclk_cs_pre", mux_cs_src_p, CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(4), 6, 2, MFLAGS, 0, 5, DFLAGS), + COMPOSITE_NOMUX(0, "clkin_trace", "sclk_cs_pre", CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(4), 8, 5, DFLAGS, + RK3368_CLKGATE_CON(0), 13, GFLAGS), + + COMPOSITE(0, "aclk_cci_pre", mux_pll_src_cpll_gpll_usb_npll_p, CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(5), 6, 2, MFLAGS, 0, 7, DFLAGS, + RK3368_CLKGATE_CON(0), 12, GFLAGS), + GATE(SCLK_PVTM_CORE, "sclk_pvtm_core", "xin24m", 0, RK3368_CLKGATE_CON(7), 10, GFLAGS), + + GATE(0, "dpll_ddr", "dpll", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(1), 8, GFLAGS), + GATE(0, "gpll_ddr", "gpll", 0, + RK3368_CLKGATE_CON(1), 9, GFLAGS), + COMPOSITE_NOGATE_DIVTBL(0, "ddrphy_src", mux_ddrphy_p, CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(13), 4, 1, MFLAGS, 0, 2, DFLAGS, div_ddrphy_t), + + GATE(0, "sclk_ddr", "ddrphy_div4", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(6), 14, GFLAGS), + GATE(0, "sclk_ddr4x", "ddrphy_src", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(6), 15, GFLAGS), + + GATE(0, "gpll_aclk_bus", "gpll", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(1), 10, GFLAGS), + GATE(0, "cpll_aclk_bus", "cpll", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(1), 11, GFLAGS), + COMPOSITE_NOGATE(0, "aclk_bus_src", mux_aclk_bus_src_p, CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(8), 7, 1, MFLAGS, 0, 5, DFLAGS), + + GATE(ACLK_BUS, "aclk_bus", "aclk_bus_src", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(1), 0, GFLAGS), + COMPOSITE_NOMUX(PCLK_BUS, "pclk_bus", "aclk_bus_src", CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(8), 12, 3, DFLAGS, + RK3368_CLKGATE_CON(1), 2, GFLAGS), + COMPOSITE_NOMUX(HCLK_BUS, "hclk_bus", "aclk_bus_src", CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(8), 8, 2, DFLAGS, + RK3368_CLKGATE_CON(1), 1, GFLAGS), + COMPOSITE_NOMUX(0, "sclk_crypto", "aclk_bus_src", 0, + RK3368_CLKSEL_CON(10), 14, 2, DFLAGS, + RK3368_CLKGATE_CON(7), 2, GFLAGS), + + COMPOSITE(0, "fclk_mcu_src", mux_pll_src_cpll_gpll_p, CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(12), 7, 1, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(1), 3, GFLAGS), + /* + * stclk_mcu is listed as child of fclk_mcu_src in diagram 5, + * but stclk_mcu has an additional own divider in diagram 2 + */ + COMPOSITE_NOMUX(0, "stclk_mcu", "fclk_mcu_src", 0, + RK3368_CLKSEL_CON(12), 8, 3, DFLAGS, + RK3368_CLKGATE_CON(13), 13, GFLAGS), + + COMPOSITE(0, "i2s_8ch_src", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(27), 12, 1, MFLAGS, 0, 7, DFLAGS, + RK3368_CLKGATE_CON(6), 1, GFLAGS), + COMPOSITE_FRAC(0, "i2s_8ch_frac", "i2s_8ch_src", CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(28), 0, + RK3368_CLKGATE_CON(6), 2, GFLAGS), + MUX(0, "i2s_8ch_pre", mux_i2s_8ch_pre_p, CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(27), 8, 2, MFLAGS), + COMPOSITE_NODIV(SCLK_I2S_8CH_OUT, "i2s_8ch_clkout", mux_i2s_8ch_clkout_p, 0, + RK3368_CLKSEL_CON(27), 15, 1, MFLAGS, + RK3368_CLKGATE_CON(6), 0, GFLAGS), + GATE(SCLK_I2S_8CH, "sclk_i2s_8ch", "i2s_8ch_pre", CLK_SET_RATE_PARENT, + RK3368_CLKGATE_CON(6), 3, GFLAGS), + COMPOSITE(0, "spdif_8ch_src", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(31), 12, 1, MFLAGS, 0, 7, DFLAGS, + RK3368_CLKGATE_CON(6), 4, GFLAGS), + COMPOSITE_FRAC(0, "spdif_8ch_frac", "spdif_8ch_src", CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(32), 0, + RK3368_CLKGATE_CON(6), 5, GFLAGS), + COMPOSITE_NODIV(SCLK_SPDIF_8CH, "sclk_spdif_8ch", mux_spdif_8ch_p, 0, + RK3368_CLKSEL_CON(31), 8, 2, MFLAGS, + RK3368_CLKGATE_CON(6), 6, GFLAGS), + COMPOSITE(0, "i2s_2ch_src", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(53), 12, 1, MFLAGS, 0, 7, DFLAGS, + RK3368_CLKGATE_CON(5), 13, GFLAGS), + COMPOSITE_FRAC(0, "i2s_2ch_frac", "i2s_2ch_src", CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(54), 0, + RK3368_CLKGATE_CON(5), 14, GFLAGS), + COMPOSITE_NODIV(SCLK_I2S_2CH, "sclk_i2s_2ch", mux_i2s_2ch_p, 0, + RK3368_CLKSEL_CON(53), 8, 2, MFLAGS, + RK3368_CLKGATE_CON(5), 15, GFLAGS), + + COMPOSITE(0, "sclk_tsp", mux_pll_src_cpll_gpll_npll_p, 0, + RK3368_CLKSEL_CON(46), 6, 2, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(6), 12, GFLAGS), + GATE(0, "sclk_hsadc_tsp", "ext_hsadc_tsp", 0, + RK3368_CLKGATE_CON(13), 7, GFLAGS), + + MUX(0, "uart_src", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(35), 12, 1, MFLAGS), + COMPOSITE_NOMUX(0, "uart2_src", "uart_src", 0, + RK3368_CLKSEL_CON(37), 0, 7, DFLAGS, + RK3368_CLKGATE_CON(2), 4, GFLAGS), + MUX(SCLK_UART2, "sclk_uart2", mux_uart2_p, CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(37), 8, 1, MFLAGS), + + /* + * Clock-Architecture Diagram 3 + */ + + COMPOSITE(0, "aclk_vepu", mux_pll_src_cpll_gpll_usb_p, 0, + RK3368_CLKSEL_CON(15), 6, 2, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(4), 6, GFLAGS), + COMPOSITE(0, "aclk_vdpu", mux_pll_src_cpll_gpll_usb_p, 0, + RK3368_CLKSEL_CON(15), 14, 2, MFLAGS, 8, 5, DFLAGS, + RK3368_CLKGATE_CON(4), 7, GFLAGS), + + /* + * We introduce a virtual node of hclk_vodec_pre_v to split one clock + * struct with a gate and a fix divider into two node in software. + */ + GATE(0, "hclk_video_pre_v", "aclk_vdpu", 0, + RK3368_CLKGATE_CON(4), 8, GFLAGS), + + COMPOSITE(0, "sclk_hevc_cabac_src", mux_pll_src_cpll_gpll_npll_usb_p, 0, + RK3368_CLKSEL_CON(17), 6, 2, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(5), 1, GFLAGS), + COMPOSITE(0, "sclk_hevc_core_src", mux_pll_src_cpll_gpll_npll_usb_p, 0, + RK3368_CLKSEL_CON(17), 14, 2, MFLAGS, 8, 5, DFLAGS, + RK3368_CLKGATE_CON(5), 2, GFLAGS), + + COMPOSITE(0, "aclk_vio0", mux_pll_src_cpll_gpll_usb_p, CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(19), 6, 2, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(4), 0, GFLAGS), + DIV(0, "hclk_vio", "aclk_vio0", 0, + RK3368_CLKSEL_CON(21), 0, 5, DFLAGS), + + COMPOSITE(0, "aclk_rga_pre", mux_pll_src_cpll_gpll_usb_p, 0, + RK3368_CLKSEL_CON(18), 14, 2, MFLAGS, 8, 5, DFLAGS, + RK3368_CLKGATE_CON(4), 3, GFLAGS), + COMPOSITE(SCLK_RGA, "sclk_rga", mux_pll_src_cpll_gpll_usb_p, 0, + RK3368_CLKSEL_CON(18), 6, 2, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(4), 4, GFLAGS), + + COMPOSITE(DCLK_VOP, "dclk_vop", mux_pll_src_cpll_gpll_npll_p, 0, + RK3368_CLKSEL_CON(20), 8, 2, MFLAGS, 0, 8, DFLAGS, + RK3368_CLKGATE_CON(4), 1, GFLAGS), + + GATE(SCLK_VOP0_PWM, "sclk_vop0_pwm", "xin24m", 0, + RK3368_CLKGATE_CON(4), 2, GFLAGS), + + COMPOSITE(SCLK_ISP, "sclk_isp", mux_pll_src_cpll_gpll_npll_npll_p, 0, + RK3368_CLKSEL_CON(22), 6, 2, MFLAGS, 0, 6, DFLAGS, + RK3368_CLKGATE_CON(4), 9, GFLAGS), + + GATE(0, "pclk_isp_in", "ext_isp", 0, + RK3368_CLKGATE_CON(17), 2, GFLAGS), + INVERTER(PCLK_ISP, "pclk_isp", "pclk_isp_in", + RK3368_CLKSEL_CON(21), 6, IFLAGS), + + GATE(0, "pclk_vip_in", "ext_vip", 0, + RK3368_CLKGATE_CON(16), 13, GFLAGS), + INVERTER(PCLK_VIP, "pclk_vip", "pclk_vip_in", + RK3368_CLKSEL_CON(21), 13, IFLAGS), + + GATE(SCLK_HDMI_HDCP, "sclk_hdmi_hdcp", "xin24m", 0, + RK3368_CLKGATE_CON(4), 13, GFLAGS), + GATE(SCLK_HDMI_CEC, "sclk_hdmi_cec", "xin32k", 0, + RK3368_CLKGATE_CON(5), 12, GFLAGS), + + COMPOSITE_NODIV(0, "vip_src", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(21), 15, 1, MFLAGS, + RK3368_CLKGATE_CON(4), 5, GFLAGS), + COMPOSITE_NOGATE(0, "sclk_vip_out", mux_vip_out_p, 0, + RK3368_CLKSEL_CON(21), 14, 1, MFLAGS, 8, 5, DFLAGS), + + COMPOSITE_NODIV(SCLK_EDP_24M, "sclk_edp_24m", mux_edp_24m_p, 0, + RK3368_CLKSEL_CON(23), 8, 1, MFLAGS, + RK3368_CLKGATE_CON(5), 4, GFLAGS), + COMPOSITE(SCLK_EDP, "sclk_edp", mux_pll_src_cpll_gpll_npll_npll_p, 0, + RK3368_CLKSEL_CON(23), 6, 2, MFLAGS, 0, 6, DFLAGS, + RK3368_CLKGATE_CON(5), 3, GFLAGS), + + COMPOSITE(SCLK_HDCP, "sclk_hdcp", mux_pll_src_cpll_gpll_npll_npll_p, 0, + RK3368_CLKSEL_CON(55), 6, 2, MFLAGS, 0, 6, DFLAGS, + RK3368_CLKGATE_CON(5), 5, GFLAGS), + + DIV(0, "pclk_pd_alive", "gpll", 0, + RK3368_CLKSEL_CON(10), 8, 5, DFLAGS), + + /* sclk_timer has a gate in the sgrf */ + + COMPOSITE_NOMUX(0, "pclk_pd_pmu", "gpll", CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(10), 0, 5, DFLAGS, + RK3368_CLKGATE_CON(7), 9, GFLAGS), + GATE(SCLK_PVTM_PMU, "sclk_pvtm_pmu", "xin24m", 0, + RK3368_CLKGATE_CON(7), 3, GFLAGS), + COMPOSITE(0, "sclk_gpu_core_src", mux_pll_src_cpll_gpll_usb_npll_p, 0, + RK3368_CLKSEL_CON(14), 6, 2, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(4), 11, GFLAGS), + MUX(0, "aclk_gpu_src", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(14), 14, 1, MFLAGS), + COMPOSITE_NOMUX(0, "aclk_gpu_mem_pre", "aclk_gpu_src", 0, + RK3368_CLKSEL_CON(14), 8, 5, DFLAGS, + RK3368_CLKGATE_CON(5), 8, GFLAGS), + COMPOSITE_NOMUX(0, "aclk_gpu_cfg_pre", "aclk_gpu_src", 0, + RK3368_CLKSEL_CON(16), 8, 5, DFLAGS, + RK3368_CLKGATE_CON(5), 9, GFLAGS), + GATE(SCLK_PVTM_GPU, "sclk_pvtm_gpu", "xin24m", 0, + RK3368_CLKGATE_CON(7), 11, GFLAGS), + + COMPOSITE(0, "aclk_peri_src", mux_pll_src_cpll_gpll_p, CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(9), 7, 1, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(3), 0, GFLAGS), + COMPOSITE_NOMUX(PCLK_PERI, "pclk_peri", "aclk_peri_src", 0, + RK3368_CLKSEL_CON(9), 12, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO, + RK3368_CLKGATE_CON(3), 3, GFLAGS), + COMPOSITE_NOMUX(HCLK_PERI, "hclk_peri", "aclk_peri_src", CLK_IGNORE_UNUSED, + RK3368_CLKSEL_CON(9), 8, 2, DFLAGS | CLK_DIVIDER_POWER_OF_TWO, + RK3368_CLKGATE_CON(3), 2, GFLAGS), + GATE(ACLK_PERI, "aclk_peri", "aclk_peri_src", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(3), 1, GFLAGS), + + GATE(0, "sclk_mipidsi_24m", "xin24m", 0, RK3368_CLKGATE_CON(4), 14, GFLAGS), + + /* + * Clock-Architecture Diagram 4 + */ + + COMPOSITE(SCLK_SPI0, "sclk_spi0", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(45), 7, 1, MFLAGS, 0, 7, DFLAGS, + RK3368_CLKGATE_CON(3), 7, GFLAGS), + COMPOSITE(SCLK_SPI1, "sclk_spi1", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(45), 15, 1, MFLAGS, 8, 7, DFLAGS, + RK3368_CLKGATE_CON(3), 8, GFLAGS), + COMPOSITE(SCLK_SPI2, "sclk_spi2", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(46), 15, 1, MFLAGS, 8, 7, DFLAGS, + RK3368_CLKGATE_CON(3), 9, GFLAGS), + + + COMPOSITE(SCLK_SDMMC, "sclk_sdmmc", mux_mmc_src_p, 0, + RK3368_CLKSEL_CON(50), 8, 2, MFLAGS, 0, 7, DFLAGS, + RK3368_CLKGATE_CON(7), 12, GFLAGS), + COMPOSITE(SCLK_SDIO0, "sclk_sdio0", mux_mmc_src_p, 0, + RK3368_CLKSEL_CON(48), 8, 2, MFLAGS, 0, 7, DFLAGS, + RK3368_CLKGATE_CON(7), 13, GFLAGS), + COMPOSITE(SCLK_EMMC, "sclk_emmc", mux_mmc_src_p, 0, + RK3368_CLKSEL_CON(51), 8, 2, MFLAGS, 0, 7, DFLAGS, + RK3368_CLKGATE_CON(7), 15, GFLAGS), + + MMC(SCLK_SDMMC_DRV, "sdmmc_drv", "sclk_sdmmc", RK3368_SDMMC_CON0, 1), + MMC(SCLK_SDMMC_SAMPLE, "sdmmc_sample", "sclk_sdmmc", RK3368_SDMMC_CON1, 0), + + MMC(SCLK_SDIO0_DRV, "sdio0_drv", "sclk_sdio0", RK3368_SDIO0_CON0, 1), + MMC(SCLK_SDIO0_SAMPLE, "sdio0_sample", "sclk_sdio0", RK3368_SDIO0_CON1, 0), + + MMC(SCLK_EMMC_DRV, "emmc_drv", "sclk_emmc", RK3368_EMMC_CON0, 1), + MMC(SCLK_EMMC_SAMPLE, "emmc_sample", "sclk_emmc", RK3368_EMMC_CON1, 0), + + GATE(SCLK_OTGPHY0, "sclk_otgphy0", "xin24m", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(8), 1, GFLAGS), + + /* pmu_grf_soc_con0[6] allows to select between xin32k and pvtm_pmu */ + GATE(SCLK_OTG_ADP, "sclk_otg_adp", "xin32k", CLK_IGNORE_UNUSED, + RK3368_CLKGATE_CON(8), 4, GFLAGS), + + /* pmu_grf_soc_con0[6] allows to select between xin32k and pvtm_pmu */ + COMPOSITE_NOMUX(SCLK_TSADC, "sclk_tsadc", "xin32k", 0, + RK3368_CLKSEL_CON(25), 0, 6, DFLAGS, + RK3368_CLKGATE_CON(3), 5, GFLAGS), + + COMPOSITE_NOMUX(SCLK_SARADC, "sclk_saradc", "xin24m", 0, + RK3368_CLKSEL_CON(25), 8, 8, DFLAGS, + RK3368_CLKGATE_CON(3), 6, GFLAGS), + + COMPOSITE(SCLK_NANDC0, "sclk_nandc0", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(47), 7, 1, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(7), 8, GFLAGS), + + COMPOSITE(SCLK_SFC, "sclk_sfc", mux_pll_src_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(52), 7, 1, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(6), 7, GFLAGS), + + COMPOSITE(0, "uart0_src", mux_pll_src_cpll_gpll_usb_usb_p, 0, + RK3368_CLKSEL_CON(33), 12, 2, MFLAGS, 0, 7, DFLAGS, + RK3368_CLKGATE_CON(2), 0, GFLAGS), + COMPOSITE_FRAC(0, "uart0_frac", "uart0_src", CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(34), 0, + RK3368_CLKGATE_CON(2), 1, GFLAGS), + MUX(SCLK_UART0, "sclk_uart0", mux_uart0_p, CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(33), 8, 2, MFLAGS), + + COMPOSITE_NOMUX(0, "uart1_src", "uart_src", 0, + RK3368_CLKSEL_CON(35), 0, 7, DFLAGS, + RK3368_CLKGATE_CON(2), 2, GFLAGS), + COMPOSITE_FRAC(0, "uart1_frac", "uart1_src", CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(36), 0, + RK3368_CLKGATE_CON(2), 3, GFLAGS), + MUX(SCLK_UART1, "sclk_uart1", mux_uart1_p, CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(35), 8, 2, MFLAGS), + + COMPOSITE_NOMUX(0, "uart3_src", "uart_src", 0, + RK3368_CLKSEL_CON(39), 0, 7, DFLAGS, + RK3368_CLKGATE_CON(2), 6, GFLAGS), + COMPOSITE_FRAC(0, "uart3_frac", "uart3_src", CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(40), 0, + RK3368_CLKGATE_CON(2), 7, GFLAGS), + MUX(SCLK_UART3, "sclk_uart3", mux_uart3_p, CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(39), 8, 2, MFLAGS), + + COMPOSITE_NOMUX(0, "uart4_src", "uart_src", 0, + RK3368_CLKSEL_CON(41), 0, 7, DFLAGS, + RK3368_CLKGATE_CON(2), 8, GFLAGS), + COMPOSITE_FRAC(0, "uart4_frac", "uart4_src", CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(42), 0, + RK3368_CLKGATE_CON(2), 9, GFLAGS), + MUX(SCLK_UART4, "sclk_uart4", mux_uart4_p, CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(41), 8, 2, MFLAGS), + + COMPOSITE(0, "mac_pll_src", mux_pll_src_npll_cpll_gpll_p, 0, + RK3368_CLKSEL_CON(43), 6, 2, MFLAGS, 0, 5, DFLAGS, + RK3368_CLKGATE_CON(3), 4, GFLAGS), + MUX(SCLK_MAC, "mac_clk", mux_mac_p, CLK_SET_RATE_PARENT, + RK3368_CLKSEL_CON(43), 8, 1, MFLAGS), + GATE(SCLK_MACREF_OUT, "sclk_macref_out", "mac_clk", 0, + RK3368_CLKGATE_CON(7), 7, GFLAGS), + GATE(SCLK_MACREF, "sclk_macref", "mac_clk", 0, + RK3368_CLKGATE_CON(7), 6, GFLAGS), + GATE(SCLK_MAC_RX, "sclk_mac_rx", "mac_clk", 0, + RK3368_CLKGATE_CON(7), 4, GFLAGS), + GATE(SCLK_MAC_TX, "sclk_mac_tx", "mac_clk", 0, + RK3368_CLKGATE_CON(7), 5, GFLAGS), + + GATE(0, "jtag", "ext_jtag", 0, + RK3368_CLKGATE_CON(7), 0, GFLAGS), + + COMPOSITE_NODIV(0, "hsic_usbphy_480m", mux_hsic_usbphy480m_p, 0, + RK3368_CLKSEL_CON(26), 8, 2, MFLAGS, + RK3368_CLKGATE_CON(8), 0, GFLAGS), + COMPOSITE_NODIV(SCLK_HSICPHY480M, "sclk_hsicphy480m", mux_hsicphy480m_p, 0, + RK3368_CLKSEL_CON(26), 12, 2, MFLAGS, + RK3368_CLKGATE_CON(8), 7, GFLAGS), + GATE(SCLK_HSICPHY12M, "sclk_hsicphy12m", "xin12m", 0, + RK3368_CLKGATE_CON(8), 6, GFLAGS), + + /* + * Clock-Architecture Diagram 5 + */ + + /* aclk_cci_pre gates */ + GATE(0, "aclk_core_niu_cpup", "aclk_cci_pre", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(11), 4, GFLAGS), + GATE(0, "aclk_core_niu_cci", "aclk_cci_pre", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(11), 3, GFLAGS), + GATE(0, "aclk_cci400", "aclk_cci_pre", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(11), 2, GFLAGS), + GATE(0, "aclk_adb400m_pd_core_b", "aclk_cci_pre", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(11), 1, GFLAGS), + GATE(0, "aclk_adb400m_pd_core_l", "aclk_cci_pre", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(11), 0, GFLAGS), + + /* aclkm_core_* gates */ + GATE(0, "aclk_adb400s_pd_core_b", "aclkm_core_b", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(10), 0, GFLAGS), + GATE(0, "aclk_adb400s_pd_core_l", "aclkm_core_l", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(9), 0, GFLAGS), + + /* armclk* gates */ + GATE(0, "sclk_dbg_pd_core_b", "armclkb", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(10), 1, GFLAGS), + GATE(0, "sclk_dbg_pd_core_l", "armclkl", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(9), 1, GFLAGS), + + /* sclk_cs_pre gates */ + GATE(0, "sclk_dbg", "sclk_cs_pre", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(11), 7, GFLAGS), + GATE(0, "pclk_core_niu_sdbg", "sclk_cs_pre", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(11), 6, GFLAGS), + GATE(0, "hclk_core_niu_dbg", "sclk_cs_pre", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(11), 5, GFLAGS), + + /* aclk_bus gates */ + GATE(0, "aclk_strc_sys", "aclk_bus", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(12), 12, GFLAGS), + GATE(ACLK_DMAC_BUS, "aclk_dmac_bus", "aclk_bus", 0, RK3368_CLKGATE_CON(12), 11, GFLAGS), + GATE(0, "sclk_intmem1", "aclk_bus", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(12), 6, GFLAGS), + GATE(0, "sclk_intmem0", "aclk_bus", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(12), 5, GFLAGS), + GATE(0, "aclk_intmem", "aclk_bus", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(12), 4, GFLAGS), + GATE(0, "aclk_gic400", "aclk_bus", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(13), 9, GFLAGS), + + /* sclk_ddr gates */ + GATE(0, "nclk_ddrupctl", "sclk_ddr", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(13), 2, GFLAGS), + + /* clk_hsadc_tsp is part of diagram2 */ + + /* fclk_mcu_src gates */ + GATE(0, "hclk_noc_mcu", "fclk_mcu_src", 0, RK3368_CLKGATE_CON(13), 14, GFLAGS), + GATE(0, "fclk_mcu", "fclk_mcu_src", 0, RK3368_CLKGATE_CON(13), 12, GFLAGS), + GATE(0, "hclk_mcu", "fclk_mcu_src", 0, RK3368_CLKGATE_CON(13), 11, GFLAGS), + + /* hclk_cpu gates */ + GATE(HCLK_SPDIF, "hclk_spdif", "hclk_bus", 0, RK3368_CLKGATE_CON(12), 10, GFLAGS), + GATE(HCLK_ROM, "hclk_rom", "hclk_bus", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(12), 9, GFLAGS), + GATE(HCLK_I2S_2CH, "hclk_i2s_2ch", "hclk_bus", 0, RK3368_CLKGATE_CON(12), 8, GFLAGS), + GATE(HCLK_I2S_8CH, "hclk_i2s_8ch", "hclk_bus", 0, RK3368_CLKGATE_CON(12), 7, GFLAGS), + GATE(HCLK_TSP, "hclk_tsp", "hclk_bus", 0, RK3368_CLKGATE_CON(13), 10, GFLAGS), + GATE(HCLK_CRYPTO, "hclk_crypto", "hclk_bus", 0, RK3368_CLKGATE_CON(13), 4, GFLAGS), + GATE(MCLK_CRYPTO, "mclk_crypto", "hclk_bus", 0, RK3368_CLKGATE_CON(13), 3, GFLAGS), + + /* pclk_cpu gates */ + GATE(PCLK_DDRPHY, "pclk_ddrphy", "pclk_bus", 0, RK3368_CLKGATE_CON(12), 14, GFLAGS), + GATE(PCLK_DDRUPCTL, "pclk_ddrupctl", "pclk_bus", 0, RK3368_CLKGATE_CON(12), 13, GFLAGS), + GATE(PCLK_I2C1, "pclk_i2c1", "pclk_bus", 0, RK3368_CLKGATE_CON(12), 3, GFLAGS), + GATE(PCLK_I2C0, "pclk_i2c0", "pclk_bus", 0, RK3368_CLKGATE_CON(12), 2, GFLAGS), + GATE(PCLK_MAILBOX, "pclk_mailbox", "pclk_bus", 0, RK3368_CLKGATE_CON(12), 1, GFLAGS), + GATE(PCLK_PWM0, "pclk_pwm0", "pclk_bus", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(12), 0, GFLAGS), + GATE(PCLK_SIM, "pclk_sim", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 8, GFLAGS), + GATE(PCLK_PWM1, "pclk_pwm1", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 6, GFLAGS), + GATE(PCLK_UART2, "pclk_uart2", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 5, GFLAGS), + GATE(0, "pclk_efuse_256", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 1, GFLAGS), + GATE(0, "pclk_efuse_1024", "pclk_bus", 0, RK3368_CLKGATE_CON(13), 0, GFLAGS), + + /* + * video clk gates + * aclk_video(_pre) can actually select between parents of aclk_vdpu + * and aclk_vepu by setting bit GRF_SOC_CON0[7]. + */ + GATE(ACLK_VIDEO, "aclk_video", "aclk_vdpu", 0, RK3368_CLKGATE_CON(15), 0, GFLAGS), + GATE(SCLK_HEVC_CABAC, "sclk_hevc_cabac", "sclk_hevc_cabac_src", 0, RK3368_CLKGATE_CON(15), 3, GFLAGS), + GATE(SCLK_HEVC_CORE, "sclk_hevc_core", "sclk_hevc_core_src", 0, RK3368_CLKGATE_CON(15), 2, GFLAGS), + GATE(HCLK_VIDEO, "hclk_video", "hclk_video_pre", 0, RK3368_CLKGATE_CON(15), 1, GFLAGS), + + /* aclk_rga_pre gates */ + GATE(ACLK_VIO1_NOC, "aclk_vio1_noc", "aclk_rga_pre", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(16), 10, GFLAGS), + GATE(ACLK_RGA, "aclk_rga", "aclk_rga_pre", 0, RK3368_CLKGATE_CON(16), 0, GFLAGS), + GATE(ACLK_HDCP, "aclk_hdcp", "aclk_rga_pre", 0, RK3368_CLKGATE_CON(17), 10, GFLAGS), + + /* aclk_vio0 gates */ + GATE(ACLK_VIP, "aclk_vip", "aclk_vio0", 0, RK3368_CLKGATE_CON(16), 11, GFLAGS), + GATE(ACLK_VIO0_NOC, "aclk_vio0_noc", "aclk_vio0", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(16), 9, GFLAGS), + GATE(ACLK_VOP, "aclk_vop", "aclk_vio0", 0, RK3368_CLKGATE_CON(16), 5, GFLAGS), + GATE(ACLK_VOP_IEP, "aclk_vop_iep", "aclk_vio0", 0, RK3368_CLKGATE_CON(16), 4, GFLAGS), + GATE(ACLK_IEP, "aclk_iep", "aclk_vio0", 0, RK3368_CLKGATE_CON(16), 2, GFLAGS), + + /* sclk_isp gates */ + GATE(HCLK_ISP, "hclk_isp", "sclk_isp", 0, RK3368_CLKGATE_CON(16), 14, GFLAGS), + GATE(ACLK_ISP, "aclk_isp", "sclk_isp", 0, RK3368_CLKGATE_CON(17), 0, GFLAGS), + + /* hclk_vio gates */ + GATE(HCLK_VIP, "hclk_vip", "hclk_vio", 0, RK3368_CLKGATE_CON(16), 12, GFLAGS), + GATE(HCLK_VIO_NOC, "hclk_vio_noc", "hclk_vio", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(16), 8, GFLAGS), + GATE(HCLK_VIO_AHB_ARBI, "hclk_vio_ahb_arbi", "hclk_vio", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(16), 7, GFLAGS), + GATE(HCLK_VOP, "hclk_vop", "hclk_vio", 0, RK3368_CLKGATE_CON(16), 6, GFLAGS), + GATE(HCLK_IEP, "hclk_iep", "hclk_vio", 0, RK3368_CLKGATE_CON(16), 3, GFLAGS), + GATE(HCLK_RGA, "hclk_rga", "hclk_vio", 0, RK3368_CLKGATE_CON(16), 1, GFLAGS), + GATE(HCLK_VIO_HDCPMMU, "hclk_hdcpmmu", "hclk_vio", 0, RK3368_CLKGATE_CON(17), 12, GFLAGS), + GATE(HCLK_VIO_H2P, "hclk_vio_h2p", "hclk_vio", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 7, GFLAGS), + + /* + * pclk_vio gates + * pclk_vio comes from the exactly same source as hclk_vio + */ + GATE(PCLK_HDCP, "pclk_hdcp", "hclk_vio", 0, RK3368_CLKGATE_CON(17), 11, GFLAGS), + GATE(PCLK_EDP_CTRL, "pclk_edp_ctrl", "hclk_vio", 0, RK3368_CLKGATE_CON(17), 9, GFLAGS), + GATE(PCLK_VIO_H2P, "pclk_vio_h2p", "hclk_vio", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 8, GFLAGS), + GATE(PCLK_HDMI_CTRL, "pclk_hdmi_ctrl", "hclk_vio", 0, RK3368_CLKGATE_CON(17), 6, GFLAGS), + GATE(PCLK_MIPI_CSI, "pclk_mipi_csi", "hclk_vio", 0, RK3368_CLKGATE_CON(17), 4, GFLAGS), + GATE(PCLK_MIPI_DSI0, "pclk_mipi_dsi0", "hclk_vio", 0, RK3368_CLKGATE_CON(17), 3, GFLAGS), + + /* ext_vip gates in diagram3 */ + + /* gpu gates */ + GATE(SCLK_GPU_CORE, "sclk_gpu_core", "sclk_gpu_core_src", 0, RK3368_CLKGATE_CON(18), 2, GFLAGS), + GATE(ACLK_GPU_MEM, "aclk_gpu_mem", "aclk_gpu_mem_pre", 0, RK3368_CLKGATE_CON(18), 1, GFLAGS), + GATE(ACLK_GPU_CFG, "aclk_gpu_cfg", "aclk_gpu_cfg_pre", 0, RK3368_CLKGATE_CON(18), 0, GFLAGS), + + /* aclk_peri gates */ + GATE(ACLK_DMAC_PERI, "aclk_dmac_peri", "aclk_peri", 0, RK3368_CLKGATE_CON(19), 3, GFLAGS), + GATE(0, "aclk_peri_axi_matrix", "aclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(19), 2, GFLAGS), + GATE(HCLK_SFC, "hclk_sfc", "aclk_peri", 0, RK3368_CLKGATE_CON(20), 15, GFLAGS), + GATE(ACLK_GMAC, "aclk_gmac", "aclk_peri", 0, RK3368_CLKGATE_CON(20), 13, GFLAGS), + GATE(0, "aclk_peri_niu", "aclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(20), 8, GFLAGS), + GATE(ACLK_PERI_MMU, "aclk_peri_mmu", "aclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(21), 4, GFLAGS), + + /* hclk_peri gates */ + GATE(0, "hclk_peri_axi_matrix", "hclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(19), 0, GFLAGS), + GATE(HCLK_NANDC0, "hclk_nandc0", "hclk_peri", 0, RK3368_CLKGATE_CON(20), 11, GFLAGS), + GATE(0, "hclk_mmc_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(20), 10, GFLAGS), + GATE(0, "hclk_emem_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(20), 9, GFLAGS), + GATE(0, "hclk_peri_ahb_arbi", "hclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(20), 7, GFLAGS), + GATE(0, "hclk_usb_peri", "hclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(20), 6, GFLAGS), + GATE(HCLK_HSIC, "hclk_hsic", "hclk_peri", 0, RK3368_CLKGATE_CON(20), 5, GFLAGS), + GATE(HCLK_HOST1, "hclk_host1", "hclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(20), 4, GFLAGS), + GATE(HCLK_HOST0, "hclk_host0", "hclk_peri", 0, RK3368_CLKGATE_CON(20), 3, GFLAGS), + GATE(0, "pmu_hclk_otg0", "hclk_peri", 0, RK3368_CLKGATE_CON(20), 2, GFLAGS), + GATE(HCLK_OTG0, "hclk_otg0", "hclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(20), 1, GFLAGS), + GATE(HCLK_HSADC, "hclk_hsadc", "hclk_peri", 0, RK3368_CLKGATE_CON(21), 3, GFLAGS), + GATE(HCLK_EMMC, "hclk_emmc", "hclk_peri", 0, RK3368_CLKGATE_CON(21), 2, GFLAGS), + GATE(HCLK_SDIO0, "hclk_sdio0", "hclk_peri", 0, RK3368_CLKGATE_CON(21), 1, GFLAGS), + GATE(HCLK_SDMMC, "hclk_sdmmc", "hclk_peri", 0, RK3368_CLKGATE_CON(21), 0, GFLAGS), + + /* pclk_peri gates */ + GATE(PCLK_SARADC, "pclk_saradc", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 15, GFLAGS), + GATE(PCLK_I2C5, "pclk_i2c5", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 14, GFLAGS), + GATE(PCLK_I2C4, "pclk_i2c4", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 13, GFLAGS), + GATE(PCLK_I2C3, "pclk_i2c3", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 12, GFLAGS), + GATE(PCLK_I2C2, "pclk_i2c2", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 11, GFLAGS), + GATE(PCLK_UART4, "pclk_uart4", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 10, GFLAGS), + GATE(PCLK_UART3, "pclk_uart3", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 9, GFLAGS), + GATE(PCLK_UART1, "pclk_uart1", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 8, GFLAGS), + GATE(PCLK_UART0, "pclk_uart0", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 7, GFLAGS), + GATE(PCLK_SPI2, "pclk_spi2", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 6, GFLAGS), + GATE(PCLK_SPI1, "pclk_spi1", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 5, GFLAGS), + GATE(PCLK_SPI0, "pclk_spi0", "pclk_peri", 0, RK3368_CLKGATE_CON(19), 4, GFLAGS), + GATE(0, "pclk_peri_axi_matrix", "pclk_peri", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(19), 1, GFLAGS), + GATE(PCLK_GMAC, "pclk_gmac", "pclk_peri", 0, RK3368_CLKGATE_CON(20), 14, GFLAGS), + GATE(PCLK_TSADC, "pclk_tsadc", "pclk_peri", 0, RK3368_CLKGATE_CON(20), 0, GFLAGS), + + /* pclk_pd_alive gates */ + GATE(PCLK_TIMER1, "pclk_timer1", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 8, GFLAGS), + GATE(PCLK_TIMER0, "pclk_timer0", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 7, GFLAGS), + GATE(0, "pclk_alive_niu", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(14), 12, GFLAGS), + GATE(PCLK_GRF, "pclk_grf", "pclk_pd_alive", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(14), 11, GFLAGS), + GATE(PCLK_GPIO3, "pclk_gpio3", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 3, GFLAGS), + GATE(PCLK_GPIO2, "pclk_gpio2", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 2, GFLAGS), + GATE(PCLK_GPIO1, "pclk_gpio1", "pclk_pd_alive", 0, RK3368_CLKGATE_CON(14), 1, GFLAGS), + + /* + * pclk_vio gates + * pclk_vio comes from the exactly same source as hclk_vio + */ + GATE(0, "pclk_dphyrx", "hclk_vio", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(14), 8, GFLAGS), + GATE(0, "pclk_dphytx", "hclk_vio", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(14), 8, GFLAGS), + + /* pclk_pd_pmu gates */ + GATE(PCLK_PMUGRF, "pclk_pmugrf", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 0, GFLAGS), + GATE(PCLK_GPIO0, "pclk_gpio0", "pclk_pd_pmu", 0, RK3368_CLKGATE_CON(17), 4, GFLAGS), + GATE(PCLK_SGRF, "pclk_sgrf", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 3, GFLAGS), + GATE(0, "pclk_pmu_noc", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 2, GFLAGS), + GATE(0, "pclk_intmem1", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 1, GFLAGS), + GATE(PCLK_PMU, "pclk_pmu", "pclk_pd_pmu", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(17), 2, GFLAGS), + + /* timer gates */ + GATE(0, "sclk_timer15", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 11, GFLAGS), + GATE(0, "sclk_timer14", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 10, GFLAGS), + GATE(0, "sclk_timer13", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 9, GFLAGS), + GATE(0, "sclk_timer12", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 8, GFLAGS), + GATE(0, "sclk_timer11", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 7, GFLAGS), + GATE(0, "sclk_timer10", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 6, GFLAGS), + GATE(0, "sclk_timer05", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 5, GFLAGS), + GATE(0, "sclk_timer04", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 4, GFLAGS), + GATE(0, "sclk_timer03", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 3, GFLAGS), + GATE(0, "sclk_timer02", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 2, GFLAGS), + GATE(0, "sclk_timer01", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 1, GFLAGS), + GATE(0, "sclk_timer00", "xin24m", CLK_IGNORE_UNUSED, RK3368_CLKGATE_CON(24), 0, GFLAGS), +}; + +static void __init rk3368_clk_init(struct device_node *np) +{ + void __iomem *reg_base; + struct clk *clk; + + reg_base = of_iomap(np, 0); + if (!reg_base) { + pr_err("%s: could not map cru region\n", __func__); + return; + } + + rockchip_clk_init(np, reg_base, CLK_NR_CLKS); + + /* xin12m is created by a cru-internal divider */ + clk = clk_register_fixed_factor(NULL, "xin12m", "xin24m", 0, 1, 2); + if (IS_ERR(clk)) + pr_warn("%s: could not register clock xin12m: %ld\n", + __func__, PTR_ERR(clk)); + + /* ddrphy_div4 is created by a cru-internal divider */ + clk = clk_register_fixed_factor(NULL, "ddrphy_div4", "ddrphy_src", 0, 1, 4); + if (IS_ERR(clk)) + pr_warn("%s: could not register clock xin12m: %ld\n", + __func__, PTR_ERR(clk)); + + clk = clk_register_fixed_factor(NULL, "hclk_video_pre", + "hclk_video_pre_v", 0, 1, 4); + if (IS_ERR(clk)) + pr_warn("%s: could not register clock hclk_vcodec_pre: %ld\n", + __func__, PTR_ERR(clk)); + + /* Watchdog pclk is controlled by sgrf_soc_con3[7]. */ + clk = clk_register_fixed_factor(NULL, "pclk_wdt", "pclk_pd_alive", 0, 1, 1); + if (IS_ERR(clk)) + pr_warn("%s: could not register clock pclk_wdt: %ld\n", + __func__, PTR_ERR(clk)); + else + rockchip_clk_add_lookup(clk, PCLK_WDT); + + rockchip_clk_register_plls(rk3368_pll_clks, + ARRAY_SIZE(rk3368_pll_clks), + RK3368_GRF_SOC_STATUS0); + rockchip_clk_register_branches(rk3368_clk_branches, + ARRAY_SIZE(rk3368_clk_branches)); + + rockchip_clk_register_armclk(ARMCLKB, "armclkb", + mux_armclkb_p, ARRAY_SIZE(mux_armclkb_p), + &rk3368_cpuclkb_data, rk3368_cpuclkb_rates, + ARRAY_SIZE(rk3368_cpuclkb_rates)); + + rockchip_clk_register_armclk(ARMCLKL, "armclkl", + mux_armclkl_p, ARRAY_SIZE(mux_armclkl_p), + &rk3368_cpuclkl_data, rk3368_cpuclkl_rates, + ARRAY_SIZE(rk3368_cpuclkl_rates)); + + rockchip_register_softrst(np, 15, reg_base + RK3368_SOFTRST_CON(0), + ROCKCHIP_SOFTRST_HIWORD_MASK); + + rockchip_register_restart_notifier(RK3368_GLB_SRST_FST); +} +CLK_OF_DECLARE(rk3368_cru, "rockchip,rk3368-cru", rk3368_clk_init); diff --git a/drivers/clk/rockchip/clk.c b/drivers/clk/rockchip/clk.c index 052b94db0ff9..24938815655f 100644 --- a/drivers/clk/rockchip/clk.c +++ b/drivers/clk/rockchip/clk.c @@ -277,6 +277,13 @@ void __init rockchip_clk_register_branches( list->div_shift ); break; + case branch_inverter: + clk = rockchip_clk_register_inverter( + list->name, list->parent_names, + list->num_parents, + reg_base + list->muxdiv_offset, + list->div_shift, list->div_flags, &clk_lock); + break; } /* none of the cases above matched */ diff --git a/drivers/clk/rockchip/clk.h b/drivers/clk/rockchip/clk.h index 6b092673048a..dc8ecb2673b7 100644 --- a/drivers/clk/rockchip/clk.h +++ b/drivers/clk/rockchip/clk.h @@ -24,29 +24,29 @@ #define CLK_ROCKCHIP_CLK_H #include <linux/io.h> -#include <linux/clk.h> -#include <linux/clk-provider.h> + +struct clk; #define HIWORD_UPDATE(val, mask, shift) \ ((val) << (shift) | (mask) << ((shift) + 16)) /* register positions shared by RK2928, RK3066 and RK3188 */ -#define RK2928_PLL_CON(x) (x * 0x4) +#define RK2928_PLL_CON(x) ((x) * 0x4) #define RK2928_MODE_CON 0x40 -#define RK2928_CLKSEL_CON(x) (x * 0x4 + 0x44) -#define RK2928_CLKGATE_CON(x) (x * 0x4 + 0xd0) +#define RK2928_CLKSEL_CON(x) ((x) * 0x4 + 0x44) +#define RK2928_CLKGATE_CON(x) ((x) * 0x4 + 0xd0) #define RK2928_GLB_SRST_FST 0x100 #define RK2928_GLB_SRST_SND 0x104 -#define RK2928_SOFTRST_CON(x) (x * 0x4 + 0x110) +#define RK2928_SOFTRST_CON(x) ((x) * 0x4 + 0x110) #define RK2928_MISC_CON 0x134 #define RK3288_PLL_CON(x) RK2928_PLL_CON(x) #define RK3288_MODE_CON 0x50 -#define RK3288_CLKSEL_CON(x) (x * 0x4 + 0x60) -#define RK3288_CLKGATE_CON(x) (x * 0x4 + 0x160) +#define RK3288_CLKSEL_CON(x) ((x) * 0x4 + 0x60) +#define RK3288_CLKGATE_CON(x) ((x) * 0x4 + 0x160) #define RK3288_GLB_SRST_FST 0x1b0 #define RK3288_GLB_SRST_SND 0x1b4 -#define RK3288_SOFTRST_CON(x) (x * 0x4 + 0x1b8) +#define RK3288_SOFTRST_CON(x) ((x) * 0x4 + 0x1b8) #define RK3288_MISC_CON 0x1e8 #define RK3288_SDMMC_CON0 0x200 #define RK3288_SDMMC_CON1 0x204 @@ -57,6 +57,22 @@ #define RK3288_EMMC_CON0 0x218 #define RK3288_EMMC_CON1 0x21c +#define RK3368_PLL_CON(x) RK2928_PLL_CON(x) +#define RK3368_CLKSEL_CON(x) ((x) * 0x4 + 0x100) +#define RK3368_CLKGATE_CON(x) ((x) * 0x4 + 0x200) +#define RK3368_GLB_SRST_FST 0x280 +#define RK3368_GLB_SRST_SND 0x284 +#define RK3368_SOFTRST_CON(x) ((x) * 0x4 + 0x300) +#define RK3368_MISC_CON 0x380 +#define RK3368_SDMMC_CON0 0x400 +#define RK3368_SDMMC_CON1 0x404 +#define RK3368_SDIO0_CON0 0x408 +#define RK3368_SDIO0_CON1 0x40c +#define RK3368_SDIO1_CON0 0x410 +#define RK3368_SDIO1_CON1 0x414 +#define RK3368_EMMC_CON0 0x418 +#define RK3368_EMMC_CON1 0x41c + enum rockchip_pll_type { pll_rk3066, }; @@ -67,16 +83,16 @@ enum rockchip_pll_type { .nr = _nr, \ .nf = _nf, \ .no = _no, \ - .bwadj = (_nf >> 1), \ + .nb = ((_nf) < 2) ? 1 : (_nf) >> 1, \ } -#define RK3066_PLL_RATE_BWADJ(_rate, _nr, _nf, _no, _bw) \ +#define RK3066_PLL_RATE_NB(_rate, _nr, _nf, _no, _nb) \ { \ .rate = _rate##U, \ .nr = _nr, \ .nf = _nf, \ .no = _no, \ - .bwadj = _bw, \ + .nb = _nb, \ } struct rockchip_pll_rate_table { @@ -84,7 +100,7 @@ struct rockchip_pll_rate_table { unsigned int nr; unsigned int nf; unsigned int no; - unsigned int bwadj; + unsigned int nb; }; /** @@ -182,6 +198,13 @@ struct clk *rockchip_clk_register_mmc(const char *name, const char *const *parent_names, u8 num_parents, void __iomem *reg, int shift); +#define ROCKCHIP_INVERTER_HIWORD_MASK BIT(0) + +struct clk *rockchip_clk_register_inverter(const char *name, + const char *const *parent_names, u8 num_parents, + void __iomem *reg, int shift, int flags, + spinlock_t *lock); + #define PNAME(x) static const char *const x[] __initconst enum rockchip_clk_branch_type { @@ -191,6 +214,7 @@ enum rockchip_clk_branch_type { branch_fraction_divider, branch_gate, branch_mmc, + branch_inverter, }; struct rockchip_clk_branch { @@ -308,6 +332,26 @@ struct rockchip_clk_branch { .gate_offset = -1, \ } +#define COMPOSITE_NOGATE_DIVTBL(_id, cname, pnames, f, mo, ms, \ + mw, mf, ds, dw, df, dt) \ + { \ + .id = _id, \ + .branch_type = branch_composite, \ + .name = cname, \ + .parent_names = pnames, \ + .num_parents = ARRAY_SIZE(pnames), \ + .flags = f, \ + .muxdiv_offset = mo, \ + .mux_shift = ms, \ + .mux_width = mw, \ + .mux_flags = mf, \ + .div_shift = ds, \ + .div_width = dw, \ + .div_flags = df, \ + .div_table = dt, \ + .gate_offset = -1, \ + } + #define COMPOSITE_FRAC(_id, cname, pname, f, mo, df, go, gs, gf)\ { \ .id = _id, \ @@ -394,6 +438,18 @@ struct rockchip_clk_branch { .div_shift = shift, \ } +#define INVERTER(_id, cname, pname, io, is, if) \ + { \ + .id = _id, \ + .branch_type = branch_inverter, \ + .name = cname, \ + .parent_names = (const char *[]){ pname }, \ + .num_parents = 1, \ + .muxdiv_offset = io, \ + .div_shift = is, \ + .div_flags = if, \ + } + void rockchip_clk_init(struct device_node *np, void __iomem *base, unsigned long nr_clks); struct regmap *rockchip_clk_get_grf(void); diff --git a/drivers/clk/samsung/clk-cpu.c b/drivers/clk/samsung/clk-cpu.c index 3a1fe07cfe9e..7c1e1f58e2da 100644 --- a/drivers/clk/samsung/clk-cpu.c +++ b/drivers/clk/samsung/clk-cpu.c @@ -33,6 +33,9 @@ */ #include <linux/errno.h> +#include <linux/slab.h> +#include <linux/clk.h> +#include <linux/clk-provider.h> #include "clk-cpu.h" #define E4210_SRC_CPU 0x0 @@ -97,8 +100,8 @@ static void wait_until_mux_stable(void __iomem *mux_reg, u32 mux_pos, static long exynos_cpuclk_round_rate(struct clk_hw *hw, unsigned long drate, unsigned long *prate) { - struct clk *parent = __clk_get_parent(hw->clk); - *prate = __clk_round_rate(parent, drate); + struct clk_hw *parent = clk_hw_get_parent(hw); + *prate = clk_hw_round_rate(parent, drate); return *prate; } diff --git a/drivers/clk/samsung/clk-exynos-audss.c b/drivers/clk/samsung/clk-exynos-audss.c index 454b02ae486a..4e9584d79089 100644 --- a/drivers/clk/samsung/clk-exynos-audss.c +++ b/drivers/clk/samsung/clk-exynos-audss.c @@ -9,8 +9,9 @@ * Common Clock Framework support for Audio Subsystem Clock Controller. */ -#include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/io.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of_address.h> #include <linux/syscore_ops.h> diff --git a/drivers/clk/samsung/clk-exynos-clkout.c b/drivers/clk/samsung/clk-exynos-clkout.c index 03a52228b6d1..7cd02ff37a1f 100644 --- a/drivers/clk/samsung/clk-exynos-clkout.c +++ b/drivers/clk/samsung/clk-exynos-clkout.c @@ -9,8 +9,8 @@ * Clock driver for Exynos clock output */ +#include <linux/slab.h> #include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-exynos3250.c b/drivers/clk/samsung/clk-exynos3250.c index 538de66a759e..fdd41b17a24f 100644 --- a/drivers/clk/samsung/clk-exynos3250.c +++ b/drivers/clk/samsung/clk-exynos3250.c @@ -8,8 +8,6 @@ * Common Clock Framework support for Exynos3250 SoC. */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> @@ -19,6 +17,7 @@ #include <dt-bindings/clock/exynos3250.h> #include "clk.h" +#include "clk-cpu.h" #include "clk-pll.h" #define SRC_LEFTBUS 0x4200 @@ -319,8 +318,10 @@ static struct samsung_mux_clock mux_clks[] __initdata = { MUX(CLK_MOUT_MPLL_USER_C, "mout_mpll_user_c", mout_mpll_user_p, SRC_CPU, 24, 1), MUX(CLK_MOUT_HPM, "mout_hpm", mout_hpm_p, SRC_CPU, 20, 1), - MUX(CLK_MOUT_CORE, "mout_core", mout_core_p, SRC_CPU, 16, 1), - MUX(CLK_MOUT_APLL, "mout_apll", mout_apll_p, SRC_CPU, 0, 1), + MUX_F(CLK_MOUT_CORE, "mout_core", mout_core_p, SRC_CPU, 16, 1, + CLK_SET_RATE_PARENT, 0), + MUX_F(CLK_MOUT_APLL, "mout_apll", mout_apll_p, SRC_CPU, 0, 1, + CLK_SET_RATE_PARENT, 0), }; static struct samsung_div_clock div_clks[] __initdata = { @@ -772,6 +773,26 @@ static struct samsung_cmu_info cmu_info __initdata = { .nr_clk_regs = ARRAY_SIZE(exynos3250_cmu_clk_regs), }; +#define E3250_CPU_DIV0(apll, pclk_dbg, atb, corem) \ + (((apll) << 24) | ((pclk_dbg) << 20) | ((atb) << 16) | \ + ((corem) << 4)) +#define E3250_CPU_DIV1(hpm, copy) \ + (((hpm) << 4) | ((copy) << 0)) + +static const struct exynos_cpuclk_cfg_data e3250_armclk_d[] __initconst = { + { 1000000, E3250_CPU_DIV0(1, 7, 4, 1), E3250_CPU_DIV1(7, 7), }, + { 900000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 800000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 700000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 600000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 500000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 400000, E3250_CPU_DIV0(1, 7, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 300000, E3250_CPU_DIV0(1, 5, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 200000, E3250_CPU_DIV0(1, 3, 3, 1), E3250_CPU_DIV1(7, 7), }, + { 100000, E3250_CPU_DIV0(1, 1, 1, 1), E3250_CPU_DIV1(7, 7), }, + { 0 }, +}; + static void __init exynos3250_cmu_init(struct device_node *np) { struct samsung_clk_provider *ctx; @@ -780,6 +801,11 @@ static void __init exynos3250_cmu_init(struct device_node *np) if (!ctx) return; + exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", + mout_core_p[0], mout_core_p[1], 0x14200, + e3250_armclk_d, ARRAY_SIZE(e3250_armclk_d), + CLK_CPU_HAS_DIV1); + exynos3_core_down_clock(ctx->reg_base); } CLK_OF_DECLARE(exynos3250_cmu, "samsung,exynos3250-cmu", exynos3250_cmu_init); diff --git a/drivers/clk/samsung/clk-exynos4.c b/drivers/clk/samsung/clk-exynos4.c index cae2c048488d..251f48dcd12d 100644 --- a/drivers/clk/samsung/clk-exynos4.c +++ b/drivers/clk/samsung/clk-exynos4.c @@ -11,8 +11,8 @@ */ #include <dt-bindings/clock/exynos4.h> +#include <linux/slab.h> #include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> @@ -86,6 +86,7 @@ #define DIV_PERIL4 0xc560 #define DIV_PERIL5 0xc564 #define E4X12_DIV_CAM1 0xc568 +#define E4X12_GATE_BUS_FSYS1 0xc744 #define GATE_SCLK_CAM 0xc820 #define GATE_IP_CAM 0xc920 #define GATE_IP_TV 0xc924 @@ -1097,6 +1098,7 @@ static struct samsung_gate_clock exynos4x12_gate_clks[] __initdata = { 0), GATE(CLK_PPMUIMAGE, "ppmuimage", "aclk200", E4X12_GATE_IP_IMAGE, 9, 0, 0), + GATE(CLK_TSADC, "tsadc", "aclk133", E4X12_GATE_BUS_FSYS1, 16, 0, 0), GATE(CLK_MIPI_HSI, "mipi_hsi", "aclk133", GATE_IP_FSYS, 10, 0, 0), GATE(CLK_CHIPID, "chipid", "aclk100", E4X12_GATE_IP_PERIR, 0, 0, 0), GATE(CLK_SYSREG, "sysreg", "aclk100", E4X12_GATE_IP_PERIR, 1, diff --git a/drivers/clk/samsung/clk-exynos4415.c b/drivers/clk/samsung/clk-exynos4415.c index 6c78b09c829f..92c39f6efec8 100644 --- a/drivers/clk/samsung/clk-exynos4415.c +++ b/drivers/clk/samsung/clk-exynos4415.c @@ -9,8 +9,6 @@ * Common Clock Framework support for Exynos4415 SoC. */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-exynos5250.c b/drivers/clk/samsung/clk-exynos5250.c index 70ec3d2608a1..55b83c7ef878 100644 --- a/drivers/clk/samsung/clk-exynos5250.c +++ b/drivers/clk/samsung/clk-exynos5250.c @@ -11,14 +11,13 @@ */ #include <dt-bindings/clock/exynos5250.h> -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/syscore_ops.h> #include "clk.h" +#include "clk-cpu.h" #define APLL_LOCK 0x0 #define APLL_CON0 0x100 @@ -748,6 +747,32 @@ static struct samsung_pll_clock exynos5250_plls[nr_plls] __initdata = { VPLL_LOCK, VPLL_CON0, NULL), }; +#define E5250_CPU_DIV0(apll, pclk_dbg, atb, periph, acp, cpud) \ + ((((apll) << 24) | ((pclk_dbg) << 20) | ((atb) << 16) | \ + ((periph) << 12) | ((acp) << 8) | ((cpud) << 4))) +#define E5250_CPU_DIV1(hpm, copy) \ + (((hpm) << 4) | (copy)) + +static const struct exynos_cpuclk_cfg_data exynos5250_armclk_d[] __initconst = { + { 1700000, E5250_CPU_DIV0(5, 3, 7, 7, 7, 3), E5250_CPU_DIV1(2, 0), }, + { 1600000, E5250_CPU_DIV0(4, 1, 7, 7, 7, 3), E5250_CPU_DIV1(2, 0), }, + { 1500000, E5250_CPU_DIV0(4, 1, 7, 7, 7, 2), E5250_CPU_DIV1(2, 0), }, + { 1400000, E5250_CPU_DIV0(4, 1, 6, 7, 7, 2), E5250_CPU_DIV1(2, 0), }, + { 1300000, E5250_CPU_DIV0(3, 1, 6, 7, 7, 2), E5250_CPU_DIV1(2, 0), }, + { 1200000, E5250_CPU_DIV0(3, 1, 5, 7, 7, 2), E5250_CPU_DIV1(2, 0), }, + { 1100000, E5250_CPU_DIV0(3, 1, 5, 7, 7, 3), E5250_CPU_DIV1(2, 0), }, + { 1000000, E5250_CPU_DIV0(2, 1, 4, 7, 7, 1), E5250_CPU_DIV1(2, 0), }, + { 900000, E5250_CPU_DIV0(2, 1, 4, 7, 7, 1), E5250_CPU_DIV1(2, 0), }, + { 800000, E5250_CPU_DIV0(2, 1, 4, 7, 7, 1), E5250_CPU_DIV1(2, 0), }, + { 700000, E5250_CPU_DIV0(1, 1, 3, 7, 7, 1), E5250_CPU_DIV1(2, 0), }, + { 600000, E5250_CPU_DIV0(1, 1, 3, 7, 7, 1), E5250_CPU_DIV1(2, 0), }, + { 500000, E5250_CPU_DIV0(1, 1, 2, 7, 7, 1), E5250_CPU_DIV1(2, 0), }, + { 400000, E5250_CPU_DIV0(1, 1, 2, 7, 7, 1), E5250_CPU_DIV1(2, 0), }, + { 300000, E5250_CPU_DIV0(1, 1, 1, 7, 7, 1), E5250_CPU_DIV1(2, 0), }, + { 200000, E5250_CPU_DIV0(1, 1, 1, 7, 7, 1), E5250_CPU_DIV1(2, 0), }, + { 0 }, +}; + static const struct of_device_id ext_clk_match[] __initconst = { { .compatible = "samsung,clock-xxti", .data = (void *)0, }, { }, @@ -797,6 +822,10 @@ static void __init exynos5250_clk_init(struct device_node *np) ARRAY_SIZE(exynos5250_div_clks)); samsung_clk_register_gate(ctx, exynos5250_gate_clks, ARRAY_SIZE(exynos5250_gate_clks)); + exynos_register_cpu_clock(ctx, CLK_ARM_CLK, "armclk", + mout_cpu_p[0], mout_cpu_p[1], 0x200, + exynos5250_armclk_d, ARRAY_SIZE(exynos5250_armclk_d), + CLK_CPU_HAS_DIV1); /* * Enable arm clock down (in idle) and set arm divider diff --git a/drivers/clk/samsung/clk-exynos5260.c b/drivers/clk/samsung/clk-exynos5260.c index 06f96eb7cf93..d1a29f6c1084 100644 --- a/drivers/clk/samsung/clk-exynos5260.c +++ b/drivers/clk/samsung/clk-exynos5260.c @@ -9,8 +9,6 @@ * Common Clock Framework support for Exynos5260 SoC. */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-exynos5410.c b/drivers/clk/samsung/clk-exynos5410.c index 231475bc2b99..d5d5dcabc4a9 100644 --- a/drivers/clk/samsung/clk-exynos5410.c +++ b/drivers/clk/samsung/clk-exynos5410.c @@ -11,8 +11,6 @@ #include <dt-bindings/clock/exynos5410.h> -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c index a1d731ca8f48..389af3c15ec4 100644 --- a/drivers/clk/samsung/clk-exynos5420.c +++ b/drivers/clk/samsung/clk-exynos5420.c @@ -11,8 +11,7 @@ */ #include <dt-bindings/clock/exynos5420.h> -#include <linux/clk.h> -#include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c index 39c95649d3d0..cee062c588de 100644 --- a/drivers/clk/samsung/clk-exynos5433.c +++ b/drivers/clk/samsung/clk-exynos5433.c @@ -9,8 +9,6 @@ * Common Clock Framework support for Exynos5443 SoC. */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> diff --git a/drivers/clk/samsung/clk-exynos5440.c b/drivers/clk/samsung/clk-exynos5440.c index 979e81389cdd..590813871ffe 100644 --- a/drivers/clk/samsung/clk-exynos5440.c +++ b/drivers/clk/samsung/clk-exynos5440.c @@ -10,8 +10,6 @@ */ #include <dt-bindings/clock/exynos5440.h> -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-exynos7.c b/drivers/clk/samsung/clk-exynos7.c index 03d36e847b78..8524e667097e 100644 --- a/drivers/clk/samsung/clk-exynos7.c +++ b/drivers/clk/samsung/clk-exynos7.c @@ -8,8 +8,6 @@ * */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index bebc61b5fce1..b7dd396100d8 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -12,6 +12,8 @@ #include <linux/errno.h> #include <linux/hrtimer.h> #include <linux/delay.h> +#include <linux/slab.h> +#include <linux/clkdev.h> #include "clk.h" #include "clk-pll.h" @@ -180,7 +182,7 @@ static int samsung_pll35xx_set_rate(struct clk_hw *hw, unsigned long drate, rate = samsung_get_pll_settings(pll, drate); if (!rate) { pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__, - drate, __clk_get_name(hw->clk)); + drate, clk_hw_get_name(hw)); return -EINVAL; } @@ -288,7 +290,7 @@ static int samsung_pll36xx_set_rate(struct clk_hw *hw, unsigned long drate, rate = samsung_get_pll_settings(pll, drate); if (!rate) { pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__, - drate, __clk_get_name(hw->clk)); + drate, clk_hw_get_name(hw)); return -EINVAL; } @@ -403,7 +405,7 @@ static int samsung_pll45xx_set_rate(struct clk_hw *hw, unsigned long drate, rate = samsung_get_pll_settings(pll, drate); if (!rate) { pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__, - drate, __clk_get_name(hw->clk)); + drate, clk_hw_get_name(hw)); return -EINVAL; } @@ -455,7 +457,7 @@ static int samsung_pll45xx_set_rate(struct clk_hw *hw, unsigned long drate, if (ktime_to_ms(delta) > PLL_TIMEOUT_MS) { pr_err("%s: could not lock PLL %s\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); return -EFAULT; } @@ -554,7 +556,7 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate, rate = samsung_get_pll_settings(pll, drate); if (!rate) { pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__, - drate, __clk_get_name(hw->clk)); + drate, clk_hw_get_name(hw)); return -EINVAL; } @@ -614,7 +616,7 @@ static int samsung_pll46xx_set_rate(struct clk_hw *hw, unsigned long drate, if (ktime_to_ms(delta) > PLL_TIMEOUT_MS) { pr_err("%s: could not lock PLL %s\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); return -EFAULT; } @@ -772,7 +774,7 @@ static int samsung_s3c2410_pll_set_rate(struct clk_hw *hw, unsigned long drate, rate = samsung_get_pll_settings(pll, drate); if (!rate) { pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__, - drate, __clk_get_name(hw->clk)); + drate, clk_hw_get_name(hw)); return -EINVAL; } @@ -1013,7 +1015,7 @@ static int samsung_pll2550xx_set_rate(struct clk_hw *hw, unsigned long drate, rate = samsung_get_pll_settings(pll, drate); if (!rate) { pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__, - drate, __clk_get_name(hw->clk)); + drate, clk_hw_get_name(hw)); return -EINVAL; } @@ -1111,7 +1113,7 @@ static int samsung_pll2650xx_set_rate(struct clk_hw *hw, unsigned long drate, rate = samsung_get_pll_settings(pll, drate); if (!rate) { pr_err("%s: Invalid rate : %lu for pll clk %s\n", __func__, - drate, __clk_get_name(hw->clk)); + drate, clk_hw_get_name(hw)); return -EINVAL; } diff --git a/drivers/clk/samsung/clk-s3c2410-dclk.c b/drivers/clk/samsung/clk-s3c2410-dclk.c index e56df5064889..e9eb935d7616 100644 --- a/drivers/clk/samsung/clk-s3c2410-dclk.c +++ b/drivers/clk/samsung/clk-s3c2410-dclk.c @@ -8,6 +8,10 @@ * Common Clock Framework support for s3c24xx external clock output. */ +#include <linux/clkdev.h> +#include <linux/slab.h> +#include <linux/clk.h> +#include <linux/clk-provider.h> #include <linux/platform_device.h> #include <linux/module.h> #include "clk.h" @@ -57,7 +61,7 @@ struct s3c24xx_clkout { static u8 s3c24xx_clkout_get_parent(struct clk_hw *hw) { struct s3c24xx_clkout *clkout = to_s3c24xx_clkout(hw); - int num_parents = __clk_get_num_parents(hw->clk); + int num_parents = clk_hw_get_num_parents(hw); u32 val; val = readl_relaxed(S3C24XX_MISCCR) >> clkout->shift; diff --git a/drivers/clk/samsung/clk-s3c2410.c b/drivers/clk/samsung/clk-s3c2410.c index 5d2f03461bc5..0945a8852299 100644 --- a/drivers/clk/samsung/clk-s3c2410.c +++ b/drivers/clk/samsung/clk-s3c2410.c @@ -8,8 +8,6 @@ * Common Clock Framework support for S3C2410 and following SoCs. */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-s3c2412.c b/drivers/clk/samsung/clk-s3c2412.c index 2ceedaf8ce18..44d6a9f4f5b2 100644 --- a/drivers/clk/samsung/clk-s3c2412.c +++ b/drivers/clk/samsung/clk-s3c2412.c @@ -8,8 +8,6 @@ * Common Clock Framework support for S3C2412 and S3C2413. */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-s3c2443.c b/drivers/clk/samsung/clk-s3c2443.c index 0c3c182b902a..2c0a1ea3c80c 100644 --- a/drivers/clk/samsung/clk-s3c2443.c +++ b/drivers/clk/samsung/clk-s3c2443.c @@ -8,8 +8,6 @@ * Common Clock Framework support for S3C2443 and following SoCs. */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-s3c64xx.c b/drivers/clk/samsung/clk-s3c64xx.c index 0f590e5550cb..d325ed1e196b 100644 --- a/drivers/clk/samsung/clk-s3c64xx.c +++ b/drivers/clk/samsung/clk-s3c64xx.c @@ -8,8 +8,7 @@ * Common Clock Framework support for all S3C64xx SoCs. */ -#include <linux/clk.h> -#include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/samsung/clk-s5pv210-audss.c b/drivers/clk/samsung/clk-s5pv210-audss.c index de4455b75e8a..eefb84b22566 100644 --- a/drivers/clk/samsung/clk-s5pv210-audss.c +++ b/drivers/clk/samsung/clk-s5pv210-audss.c @@ -13,8 +13,8 @@ * Driver for Audio Subsystem Clock Controller of S5PV210-compatible SoCs. */ -#include <linux/clkdev.h> #include <linux/io.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of_address.h> #include <linux/syscore_ops.h> diff --git a/drivers/clk/samsung/clk-s5pv210.c b/drivers/clk/samsung/clk-s5pv210.c index cf7e8fa7b624..759aaf342bea 100644 --- a/drivers/clk/samsung/clk-s5pv210.c +++ b/drivers/clk/samsung/clk-s5pv210.c @@ -11,8 +11,6 @@ * Common Clock Framework support for all S5PC110/S5PV210 SoCs. */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> @@ -828,6 +826,8 @@ static void __init __s5pv210_clk_init(struct device_node *np, s5pv210_clk_sleep_init(); + samsung_clk_of_add_provider(np, ctx); + pr_info("%s clocks: mout_apll = %ld, mout_mpll = %ld\n" "\tmout_epll = %ld, mout_vpll = %ld\n", is_s5p6442 ? "S5P6442" : "S5PV210", diff --git a/drivers/clk/samsung/clk.c b/drivers/clk/samsung/clk.c index 0117238391d6..f38a6c49f744 100644 --- a/drivers/clk/samsung/clk.c +++ b/drivers/clk/samsung/clk.c @@ -11,6 +11,10 @@ * clock framework for Samsung platforms. */ +#include <linux/slab.h> +#include <linux/clkdev.h> +#include <linux/clk.h> +#include <linux/clk-provider.h> #include <linux/of_address.h> #include <linux/syscore_ops.h> diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h index b775fc29caa5..aa872d2c5105 100644 --- a/drivers/clk/samsung/clk.h +++ b/drivers/clk/samsung/clk.h @@ -13,10 +13,11 @@ #ifndef __SAMSUNG_CLK_H #define __SAMSUNG_CLK_H -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include "clk-pll.h" +struct clk; + /** * struct samsung_clk_provider: information about clock provider * @reg_base: virtual address for the register base. diff --git a/drivers/clk/shmobile/clk-div6.c b/drivers/clk/shmobile/clk-div6.c index 036a692c7219..b4c8d6746f68 100644 --- a/drivers/clk/shmobile/clk-div6.c +++ b/drivers/clk/shmobile/clk-div6.c @@ -11,12 +11,12 @@ */ #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/init.h> #include <linux/io.h> #include <linux/kernel.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/slab.h> #define CPG_DIV6_CKSTP BIT(8) #define CPG_DIV6_DIV(d) ((d) & 0x3f) @@ -133,13 +133,13 @@ static u8 cpg_div6_clock_get_parent(struct clk_hw *hw) hw_index = (clk_readl(clock->reg) >> clock->src_shift) & (BIT(clock->src_width) - 1); - for (i = 0; i < __clk_get_num_parents(hw->clk); i++) { + for (i = 0; i < clk_hw_get_num_parents(hw); i++) { if (clock->parents[i] == hw_index) return i; } pr_err("%s: %s DIV6 clock set to invalid parent %u\n", - __func__, __clk_get_name(hw->clk), hw_index); + __func__, clk_hw_get_name(hw), hw_index); return 0; } @@ -149,7 +149,7 @@ static int cpg_div6_clock_set_parent(struct clk_hw *hw, u8 index) u8 hw_index; u32 mask; - if (index >= __clk_get_num_parents(hw->clk)) + if (index >= clk_hw_get_num_parents(hw)) return -EINVAL; mask = ~((BIT(clock->src_width) - 1) << clock->src_shift); diff --git a/drivers/clk/shmobile/clk-r8a73a4.c b/drivers/clk/shmobile/clk-r8a73a4.c index 29b9a0b0012a..9326204bed9d 100644 --- a/drivers/clk/shmobile/clk-r8a73a4.c +++ b/drivers/clk/shmobile/clk-r8a73a4.c @@ -9,10 +9,10 @@ */ #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/clk/shmobile.h> #include <linux/init.h> #include <linux/kernel.h> +#include <linux/slab.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/spinlock.h> diff --git a/drivers/clk/shmobile/clk-r8a7740.c b/drivers/clk/shmobile/clk-r8a7740.c index 1e2eaae21e01..1e6b1da58065 100644 --- a/drivers/clk/shmobile/clk-r8a7740.c +++ b/drivers/clk/shmobile/clk-r8a7740.c @@ -9,10 +9,10 @@ */ #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/clk/shmobile.h> #include <linux/init.h> #include <linux/kernel.h> +#include <linux/slab.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/spinlock.h> diff --git a/drivers/clk/shmobile/clk-r8a7778.c b/drivers/clk/shmobile/clk-r8a7778.c index cb33b57274bf..e97e28fcfc13 100644 --- a/drivers/clk/shmobile/clk-r8a7778.c +++ b/drivers/clk/shmobile/clk-r8a7778.c @@ -9,9 +9,9 @@ */ #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/clk/shmobile.h> #include <linux/of_address.h> +#include <linux/slab.h> struct r8a7778_cpg { struct clk_onecell_data data; diff --git a/drivers/clk/shmobile/clk-r8a7779.c b/drivers/clk/shmobile/clk-r8a7779.c index 652ecacb6daf..af297963489f 100644 --- a/drivers/clk/shmobile/clk-r8a7779.c +++ b/drivers/clk/shmobile/clk-r8a7779.c @@ -11,12 +11,12 @@ */ #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/clk/shmobile.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/slab.h> #include <linux/spinlock.h> #include <dt-bindings/clock/r8a7779-clock.h> diff --git a/drivers/clk/shmobile/clk-rcar-gen2.c b/drivers/clk/shmobile/clk-rcar-gen2.c index acfb6d7dbd6b..9233ebf8cc49 100644 --- a/drivers/clk/shmobile/clk-rcar-gen2.c +++ b/drivers/clk/shmobile/clk-rcar-gen2.c @@ -11,13 +11,13 @@ */ #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/clk/shmobile.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/math64.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/slab.h> #include <linux/spinlock.h> struct rcar_gen2_cpg { diff --git a/drivers/clk/shmobile/clk-sh73a0.c b/drivers/clk/shmobile/clk-sh73a0.c index cd529cfe412f..8966f8bbfd72 100644 --- a/drivers/clk/shmobile/clk-sh73a0.c +++ b/drivers/clk/shmobile/clk-sh73a0.c @@ -9,12 +9,12 @@ */ #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/clk/shmobile.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/slab.h> #include <linux/spinlock.h> struct sh73a0_cpg { diff --git a/drivers/clk/sirf/clk-atlas6.c b/drivers/clk/sirf/clk-atlas6.c index d63b76ca60c3..c5eaa9d16247 100644 --- a/drivers/clk/sirf/clk-atlas6.c +++ b/drivers/clk/sirf/clk-atlas6.c @@ -10,7 +10,6 @@ #include <linux/module.h> #include <linux/bitops.h> #include <linux/io.h> -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of_address.h> diff --git a/drivers/clk/sirf/clk-atlas7.c b/drivers/clk/sirf/clk-atlas7.c index db8ab691dbf6..a98e21fe773a 100644 --- a/drivers/clk/sirf/clk-atlas7.c +++ b/drivers/clk/sirf/clk-atlas7.c @@ -358,6 +358,7 @@ static unsigned long pll_clk_recalc_rate(struct clk_hw *hw, if (regctrl0 & SIRFSOC_ABPLL_CTRL0_SSEN) { rate = fin; rate *= 1 << 24; + do_div(rate, nr); do_div(rate, (256 * ((ssdiv >> ssdepth) << ssdepth) + (ssmod << ssdepth))); } else { @@ -465,6 +466,9 @@ static struct clk_pll clk_sys3pll = { * double resolution mode:fout = fin * finc / 2^29 * normal mode:fout = fin * finc / 2^28 */ +#define DTO_RESL_DOUBLE (1ULL << 29) +#define DTO_RESL_NORMAL (1ULL << 28) + static int dto_clk_is_enabled(struct clk_hw *hw) { struct clk_dto *clk = to_dtoclk(hw); @@ -509,9 +513,9 @@ static unsigned long dto_clk_recalc_rate(struct clk_hw *hw, rate *= finc; if (droff & BIT(0)) /* Double resolution off */ - do_div(rate, 1 << 28); + do_div(rate, DTO_RESL_NORMAL); else - do_div(rate, 1 << 29); + do_div(rate, DTO_RESL_DOUBLE); return rate; } @@ -519,11 +523,11 @@ static unsigned long dto_clk_recalc_rate(struct clk_hw *hw, static long dto_clk_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate) { - u64 dividend = rate * (1 << 29); + u64 dividend = rate * DTO_RESL_DOUBLE; do_div(dividend, *parent_rate); dividend *= *parent_rate; - do_div(dividend, 1 << 29); + do_div(dividend, DTO_RESL_DOUBLE); return dividend; } @@ -531,7 +535,7 @@ static long dto_clk_round_rate(struct clk_hw *hw, unsigned long rate, static int dto_clk_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long parent_rate) { - u64 dividend = rate * (1 << 29); + u64 dividend = rate * DTO_RESL_DOUBLE; struct clk_dto *clk = to_dtoclk(hw); do_div(dividend, parent_rate); @@ -1161,7 +1165,7 @@ static struct atlas7_unit_init_data unit_list[] __initdata = { { 122, "spram1_cpudiv2", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 0, &leaf6_gate_lock }, { 123, "spram2_cpudiv2", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 1, &leaf6_gate_lock }, { 124, "coresight_cpudiv2", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 2, &leaf6_gate_lock }, - { 125, "thcpum_cpudiv4", "cpum_cpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 3, &leaf6_gate_lock }, + { 125, "coresight_tpiu", "cpum_tpiu", 0, SIRFSOC_CLKC_LEAF_CLK_EN6_SET, 3, &leaf6_gate_lock }, { 126, "graphic_gpu", "gpum_gpu", 0, SIRFSOC_CLKC_LEAF_CLK_EN7_SET, 0, &leaf7_gate_lock }, { 127, "vss_sdr", "gpum_sdr", 0, SIRFSOC_CLKC_LEAF_CLK_EN7_SET, 1, &leaf7_gate_lock }, { 128, "thgpum_nocr", "gpum_nocr", 0, SIRFSOC_CLKC_LEAF_CLK_EN7_SET, 2, &leaf7_gate_lock }, @@ -1174,9 +1178,13 @@ static struct atlas7_unit_init_data unit_list[] __initdata = { { 135, "thbtm_io", "btm_io", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 7, &leaf8_gate_lock }, { 136, "btslow", "xinw_fixdiv_btslow", 0, SIRFSOC_CLKC_ROOT_CLK_EN1_SET, 25, &root1_gate_lock }, { 137, "a7ca_btslow", "btslow", 0, SIRFSOC_CLKC_LEAF_CLK_EN8_SET, 0, &leaf8_gate_lock }, + { 138, "pwm_io", "io_mux", 0, SIRFSOC_CLKC_LEAF_CLK_EN0_SET, 0, &leaf0_gate_lock }, + { 139, "pwm_xin", "xin", 0, SIRFSOC_CLKC_LEAF_CLK_EN0_SET, 1, &leaf0_gate_lock }, + { 140, "pwm_xinw", "xinw", 0, SIRFSOC_CLKC_LEAF_CLK_EN0_SET, 2, &leaf0_gate_lock }, + { 141, "thcgum_sys", "sys_mux", 0, SIRFSOC_CLKC_LEAF_CLK_EN0_SET, 3, &leaf0_gate_lock }, }; -static struct clk *atlas7_clks[ARRAY_SIZE(unit_list)]; +static struct clk *atlas7_clks[ARRAY_SIZE(unit_list) + ARRAY_SIZE(mux_list)]; static int unit_clk_is_enabled(struct clk_hw *hw) { @@ -1609,6 +1617,7 @@ static void __init atlas7_clk_init(struct device_node *np) sirfsoc_clk_vbase + mux->mux_offset, mux->shift, mux->width, mux->mux_flags, NULL); + atlas7_clks[ARRAY_SIZE(unit_list) + i] = clk; BUG_ON(!clk); } @@ -1620,7 +1629,7 @@ static void __init atlas7_clk_init(struct device_node *np) } clk_data.clks = atlas7_clks; - clk_data.clk_num = ARRAY_SIZE(unit_list); + clk_data.clk_num = ARRAY_SIZE(unit_list) + ARRAY_SIZE(mux_list); ret = of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); BUG_ON(ret); diff --git a/drivers/clk/sirf/clk-common.c b/drivers/clk/sirf/clk-common.c index 9fc285d784d3..77e1e2491689 100644 --- a/drivers/clk/sirf/clk-common.c +++ b/drivers/clk/sirf/clk-common.c @@ -7,6 +7,8 @@ * Licensed under GPLv2 or later. */ +#include <linux/clk.h> + #define KHZ 1000 #define MHZ (KHZ * KHZ) @@ -165,10 +167,10 @@ static long cpu_clk_round_rate(struct clk_hw *hw, unsigned long rate, * SiRF SoC has not cpu clock control, * So bypass to it's parent pll. */ - struct clk *parent_clk = clk_get_parent(hw->clk); - struct clk *pll_parent_clk = clk_get_parent(parent_clk); - unsigned long pll_parent_rate = clk_get_rate(pll_parent_clk); - return pll_clk_round_rate(__clk_get_hw(parent_clk), rate, &pll_parent_rate); + struct clk_hw *parent_clk = clk_hw_get_parent(hw); + struct clk_hw *pll_parent_clk = clk_hw_get_parent(parent_clk); + unsigned long pll_parent_rate = clk_hw_get_rate(pll_parent_clk); + return pll_clk_round_rate(parent_clk, rate, &pll_parent_rate); } static unsigned long cpu_clk_recalc_rate(struct clk_hw *hw, @@ -178,8 +180,8 @@ static unsigned long cpu_clk_recalc_rate(struct clk_hw *hw, * SiRF SoC has not cpu clock control, * So return the parent pll rate. */ - struct clk *parent_clk = clk_get_parent(hw->clk); - return __clk_get_rate(parent_clk); + struct clk_hw *parent_clk = clk_hw_get_parent(hw); + return clk_hw_get_rate(parent_clk); } static struct clk_ops std_pll_ops = { diff --git a/drivers/clk/sirf/clk-prima2.c b/drivers/clk/sirf/clk-prima2.c index 6968e2ebcd8a..f92c40264342 100644 --- a/drivers/clk/sirf/clk-prima2.c +++ b/drivers/clk/sirf/clk-prima2.c @@ -10,7 +10,6 @@ #include <linux/module.h> #include <linux/bitops.h> #include <linux/io.h> -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/of_address.h> diff --git a/drivers/clk/socfpga/clk-gate-a10.c b/drivers/clk/socfpga/clk-gate-a10.c index 83c6780ff4b2..1cebf253e8fd 100644 --- a/drivers/clk/socfpga/clk-gate-a10.c +++ b/drivers/clk/socfpga/clk-gate-a10.c @@ -13,6 +13,7 @@ * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/slab.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/mfd/syscon.h> @@ -38,7 +39,7 @@ static unsigned long socfpga_gate_clk_recalc_rate(struct clk_hw *hwclk, div = socfpgaclk->fixed_div; else if (socfpgaclk->div_reg) { val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift; - val &= div_mask(socfpgaclk->width); + val &= GENMASK(socfpgaclk->width - 1, 0); div = (1 << val); } diff --git a/drivers/clk/socfpga/clk-gate.c b/drivers/clk/socfpga/clk-gate.c index 82449cd76fd7..aa7a6e6a15b6 100644 --- a/drivers/clk/socfpga/clk-gate.c +++ b/drivers/clk/socfpga/clk-gate.c @@ -15,8 +15,7 @@ * Based from clk-highbank.c * */ -#include <linux/clk.h> -#include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/mfd/syscon.h> @@ -106,7 +105,7 @@ static unsigned long socfpga_clk_recalc_rate(struct clk_hw *hwclk, div = socfpgaclk->fixed_div; else if (socfpgaclk->div_reg) { val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift; - val &= div_mask(socfpgaclk->width); + val &= GENMASK(socfpgaclk->width - 1, 0); /* Check for GPIO_DB_CLK by its offset */ if ((int) socfpgaclk->div_reg & SOCFPGA_GPIO_DB_CLK_OFFSET) div = val + 1; diff --git a/drivers/clk/socfpga/clk-periph-a10.c b/drivers/clk/socfpga/clk-periph-a10.c index 9d0181b5a6a4..1f397cb72e89 100644 --- a/drivers/clk/socfpga/clk-periph-a10.c +++ b/drivers/clk/socfpga/clk-periph-a10.c @@ -13,6 +13,7 @@ * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/slab.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/of.h> @@ -37,7 +38,7 @@ static unsigned long clk_periclk_recalc_rate(struct clk_hw *hwclk, div = socfpgaclk->fixed_div; } else if (socfpgaclk->div_reg) { div = readl(socfpgaclk->div_reg) >> socfpgaclk->shift; - div &= div_mask(socfpgaclk->width); + div &= GENMASK(socfpgaclk->width - 1, 0); div += 1; } else { div = ((readl(socfpgaclk->hw.reg) & 0x7ff) + 1); diff --git a/drivers/clk/socfpga/clk-periph.c b/drivers/clk/socfpga/clk-periph.c index 83aeaa219d14..52c883ea7706 100644 --- a/drivers/clk/socfpga/clk-periph.c +++ b/drivers/clk/socfpga/clk-periph.c @@ -15,8 +15,7 @@ * Based from clk-highbank.c * */ -#include <linux/clk.h> -#include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/of.h> @@ -36,7 +35,7 @@ static unsigned long clk_periclk_recalc_rate(struct clk_hw *hwclk, } else { if (socfpgaclk->div_reg) { val = readl(socfpgaclk->div_reg) >> socfpgaclk->shift; - val &= div_mask(socfpgaclk->width); + val &= GENMASK(socfpgaclk->width - 1, 0); parent_rate /= (val + 1); } div = ((readl(socfpgaclk->hw.reg) & 0x1ff) + 1); @@ -45,8 +44,17 @@ static unsigned long clk_periclk_recalc_rate(struct clk_hw *hwclk, return parent_rate / div; } +static u8 clk_periclk_get_parent(struct clk_hw *hwclk) +{ + u32 clk_src; + + clk_src = readl(clk_mgr_base_addr + CLKMGR_DBCTRL); + return clk_src & 0x1; +} + static const struct clk_ops periclk_ops = { .recalc_rate = clk_periclk_recalc_rate, + .get_parent = clk_periclk_get_parent, }; static __init void __socfpga_periph_init(struct device_node *node, @@ -56,7 +64,7 @@ static __init void __socfpga_periph_init(struct device_node *node, struct clk *clk; struct socfpga_periph_clk *periph_clk; const char *clk_name = node->name; - const char *parent_name; + const char *parent_name[SOCFPGA_MAX_PARENTS]; struct clk_init_data init; int rc; u32 fixed_div; @@ -90,9 +98,10 @@ static __init void __socfpga_periph_init(struct device_node *node, init.name = clk_name; init.ops = ops; init.flags = 0; - parent_name = of_clk_get_parent_name(node, 0); - init.parent_names = &parent_name; - init.num_parents = 1; + + init.num_parents = of_clk_parent_fill(node, parent_name, + SOCFPGA_MAX_PARENTS); + init.parent_names = parent_name; periph_clk->hw.hw.init = &init; diff --git a/drivers/clk/socfpga/clk-pll-a10.c b/drivers/clk/socfpga/clk-pll-a10.c index 1178b11babca..402d630bd531 100644 --- a/drivers/clk/socfpga/clk-pll-a10.c +++ b/drivers/clk/socfpga/clk-pll-a10.c @@ -13,6 +13,7 @@ * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/slab.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/of.h> diff --git a/drivers/clk/socfpga/clk-pll.c b/drivers/clk/socfpga/clk-pll.c index 8f26b5234947..c7f463172e4b 100644 --- a/drivers/clk/socfpga/clk-pll.c +++ b/drivers/clk/socfpga/clk-pll.c @@ -15,8 +15,7 @@ * Based from clk-highbank.c * */ -#include <linux/clk.h> -#include <linux/clkdev.h> +#include <linux/slab.h> #include <linux/clk-provider.h> #include <linux/io.h> #include <linux/of.h> diff --git a/drivers/clk/socfpga/clk.h b/drivers/clk/socfpga/clk.h index 603973ab7e29..814c7247bf73 100644 --- a/drivers/clk/socfpga/clk.h +++ b/drivers/clk/socfpga/clk.h @@ -18,16 +18,15 @@ #define __SOCFPGA_CLK_H #include <linux/clk-provider.h> -#include <linux/clkdev.h> /* Clock Manager offsets */ #define CLKMGR_CTRL 0x0 #define CLKMGR_BYPASS 0x4 +#define CLKMGR_DBCTRL 0x10 #define CLKMGR_L4SRC 0x70 #define CLKMGR_PERPLL_SRC 0xAC #define SOCFPGA_MAX_PARENTS 5 -#define div_mask(width) ((1 << (width)) - 1) #define streq(a, b) (strcmp((a), (b)) == 0) #define SYSMGR_SDMMC_CTRL_SET(smplsel, drvsel) \ diff --git a/drivers/clk/spear/clk-vco-pll.c b/drivers/clk/spear/clk-vco-pll.c index 5ebddc528145..dc21ca4601aa 100644 --- a/drivers/clk/spear/clk-vco-pll.c +++ b/drivers/clk/spear/clk-vco-pll.c @@ -87,7 +87,7 @@ static long clk_pll_round_rate_index(struct clk_hw *hw, unsigned long drate, struct clk_pll *pll = to_clk_pll(hw); unsigned long prev_rate, vco_prev_rate, rate = 0; unsigned long vco_parent_rate = - __clk_get_rate(__clk_get_parent(__clk_get_parent(hw->clk))); + clk_hw_get_rate(clk_hw_get_parent(clk_hw_get_parent(hw))); if (!prate) { pr_err("%s: prate is must for pll clk\n", __func__); diff --git a/drivers/clk/spear/spear1310_clock.c b/drivers/clk/spear/spear1310_clock.c index 222ce108b41a..009bd1410cfa 100644 --- a/drivers/clk/spear/spear1310_clock.c +++ b/drivers/clk/spear/spear1310_clock.c @@ -11,7 +11,6 @@ * warranty of any kind, whether express or implied. */ -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/err.h> #include <linux/io.h> diff --git a/drivers/clk/spear/spear1340_clock.c b/drivers/clk/spear/spear1340_clock.c index 973c9d3fbcf8..9c7abfd951ba 100644 --- a/drivers/clk/spear/spear1340_clock.c +++ b/drivers/clk/spear/spear1340_clock.c @@ -11,7 +11,6 @@ * warranty of any kind, whether express or implied. */ -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/err.h> #include <linux/io.h> diff --git a/drivers/clk/spear/spear6xx_clock.c b/drivers/clk/spear/spear6xx_clock.c index 231061fa73a4..e24f85cd4300 100644 --- a/drivers/clk/spear/spear6xx_clock.c +++ b/drivers/clk/spear/spear6xx_clock.c @@ -9,7 +9,6 @@ * warranty of any kind, whether express or implied. */ -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/io.h> #include <linux/spinlock_types.h> diff --git a/drivers/clk/st/clk-flexgen.c b/drivers/clk/st/clk-flexgen.c index 8dd8cce27361..bd355ee33766 100644 --- a/drivers/clk/st/clk-flexgen.c +++ b/drivers/clk/st/clk-flexgen.c @@ -5,6 +5,7 @@ * Author: Maxime Coquelin <maxime.coquelin@st.com> for ST-Microelectronics. * License terms: GNU General Public License (GPL), version 2 */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/module.h> #include <linux/slab.h> @@ -44,7 +45,7 @@ static int flexgen_enable(struct clk_hw *hw) clk_gate_ops.enable(fgate_hw); - pr_debug("%s: flexgen output enabled\n", __clk_get_name(hw->clk)); + pr_debug("%s: flexgen output enabled\n", clk_hw_get_name(hw)); return 0; } @@ -58,7 +59,7 @@ static void flexgen_disable(struct clk_hw *hw) clk_gate_ops.disable(fgate_hw); - pr_debug("%s: flexgen output disabled\n", __clk_get_name(hw->clk)); + pr_debug("%s: flexgen output disabled\n", clk_hw_get_name(hw)); } static int flexgen_is_enabled(struct clk_hw *hw) @@ -108,7 +109,7 @@ static long flexgen_round_rate(struct clk_hw *hw, unsigned long rate, /* Round div according to exact prate and wished rate */ div = clk_best_div(*prate, rate); - if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) { + if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) { *prate = rate * div; return rate; } @@ -243,7 +244,7 @@ static const char ** __init flexgen_get_parents(struct device_node *np, int *num_parents) { const char **parents; - int nparents, i; + int nparents; nparents = of_clk_get_parent_count(np); if (WARN_ON(nparents <= 0)) @@ -253,10 +254,8 @@ static const char ** __init flexgen_get_parents(struct device_node *np, if (!parents) return NULL; - for (i = 0; i < nparents; i++) - parents[i] = of_clk_get_parent_name(np, i); + *num_parents = of_clk_parent_fill(np, parents, nparents); - *num_parents = nparents; return parents; } diff --git a/drivers/clk/st/clkgen-fsyn.c b/drivers/clk/st/clkgen-fsyn.c index d9eb2e1d8471..83ccf142ff2a 100644 --- a/drivers/clk/st/clkgen-fsyn.c +++ b/drivers/clk/st/clkgen-fsyn.c @@ -15,6 +15,7 @@ #include <linux/slab.h> #include <linux/of_address.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include "clkgen.h" @@ -512,7 +513,7 @@ static unsigned long quadfs_pll_fs660c32_recalc_rate(struct clk_hw *hw, params.ndiv = CLKGEN_READ(pll, ndiv); if (clk_fs660c32_vco_get_rate(parent_rate, ¶ms, &rate)) pr_err("%s:%s error calculating rate\n", - __clk_get_name(hw->clk), __func__); + clk_hw_get_name(hw), __func__); pll->ndiv = params.ndiv; @@ -557,7 +558,7 @@ static long quadfs_pll_fs660c32_round_rate(struct clk_hw *hw, unsigned long rate clk_fs660c32_vco_get_rate(*prate, ¶ms, &rate); pr_debug("%s: %s new rate %ld [sdiv=0x%x,md=0x%x,pe=0x%x,nsdiv3=%u]\n", - __func__, __clk_get_name(hw->clk), + __func__, clk_hw_get_name(hw), rate, (unsigned int)params.sdiv, (unsigned int)params.mdiv, (unsigned int)params.pe, (unsigned int)params.nsdiv); @@ -580,7 +581,7 @@ static int quadfs_pll_fs660c32_set_rate(struct clk_hw *hw, unsigned long rate, clk_fs660c32_vco_get_rate(parent_rate, ¶ms, &hwrate); pr_debug("%s: %s new rate %ld [ndiv=0x%x]\n", - __func__, __clk_get_name(hw->clk), + __func__, clk_hw_get_name(hw), hwrate, (unsigned int)params.ndiv); if (!hwrate) @@ -744,7 +745,7 @@ static int quadfs_fsynth_enable(struct clk_hw *hw) struct st_clk_quadfs_fsynth *fs = to_quadfs_fsynth(hw); unsigned long flags = 0; - pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); + pr_debug("%s: %s\n", __func__, clk_hw_get_name(hw)); quadfs_fsynth_program_rate(fs); @@ -769,7 +770,7 @@ static void quadfs_fsynth_disable(struct clk_hw *hw) struct st_clk_quadfs_fsynth *fs = to_quadfs_fsynth(hw); unsigned long flags = 0; - pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); + pr_debug("%s: %s\n", __func__, clk_hw_get_name(hw)); if (fs->lock) spin_lock_irqsave(fs->lock, flags); @@ -786,7 +787,7 @@ static int quadfs_fsynth_is_enabled(struct clk_hw *hw) u32 nsb = CLKGEN_READ(fs, nsb[fs->chan]); pr_debug("%s: %s enable bit = 0x%x\n", - __func__, __clk_get_name(hw->clk), nsb); + __func__, clk_hw_get_name(hw), nsb); return fs->data->standby_polarity ? !nsb : !!nsb; } @@ -945,10 +946,10 @@ static unsigned long quadfs_recalc_rate(struct clk_hw *hw, if (clk_fs_get_rate(parent_rate, ¶ms, &rate)) { pr_err("%s:%s error calculating rate\n", - __clk_get_name(hw->clk), __func__); + clk_hw_get_name(hw), __func__); } - pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate); + pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate); return rate; } @@ -961,7 +962,7 @@ static long quadfs_round_rate(struct clk_hw *hw, unsigned long rate, rate = quadfs_find_best_rate(hw, rate, *prate, ¶ms); pr_debug("%s: %s new rate %ld [sdiv=0x%x,md=0x%x,pe=0x%x,nsdiv3=%u]\n", - __func__, __clk_get_name(hw->clk), + __func__, clk_hw_get_name(hw), rate, (unsigned int)params.sdiv, (unsigned int)params.mdiv, (unsigned int)params.pe, (unsigned int)params.nsdiv); diff --git a/drivers/clk/st/clkgen-mux.c b/drivers/clk/st/clkgen-mux.c index 717c4a91a17b..4f7f6c00b219 100644 --- a/drivers/clk/st/clkgen-mux.c +++ b/drivers/clk/st/clkgen-mux.c @@ -15,6 +15,7 @@ #include <linux/slab.h> #include <linux/of_address.h> +#include <linux/clk.h> #include <linux/clk-provider.h> static DEFINE_SPINLOCK(clkgena_divmux_lock); @@ -24,20 +25,17 @@ static const char ** __init clkgen_mux_get_parents(struct device_node *np, int *num_parents) { const char **parents; - int nparents, i; + int nparents; nparents = of_clk_get_parent_count(np); if (WARN_ON(nparents <= 0)) return ERR_PTR(-EINVAL); - parents = kzalloc(nparents * sizeof(const char *), GFP_KERNEL); + parents = kcalloc(nparents, sizeof(const char *), GFP_KERNEL); if (!parents) return ERR_PTR(-ENOMEM); - for (i = 0; i < nparents; i++) - parents[i] = of_clk_get_parent_name(np, i); - - *num_parents = nparents; + *num_parents = of_clk_parent_fill(np, parents, nparents); return parents; } @@ -141,7 +139,7 @@ static u8 clkgena_divmux_get_parent(struct clk_hw *hw) genamux->muxsel = clk_mux_ops.get_parent(mux_hw); if ((s8)genamux->muxsel < 0) { pr_debug("%s: %s: Invalid parent, setting to default.\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); genamux->muxsel = 0; } @@ -215,7 +213,7 @@ static const struct clk_ops clkgena_divmux_ops = { /** * clk_register_genamux - register a genamux clock with the clock framework */ -static struct clk *clk_register_genamux(const char *name, +static struct clk * __init clk_register_genamux(const char *name, const char **parent_names, u8 num_parents, void __iomem *reg, const struct clkgena_divmux_data *muxdata, @@ -369,11 +367,10 @@ static const struct of_device_id clkgena_divmux_of_match[] = { {} }; -static void __iomem * __init clkgen_get_register_base( - struct device_node *np) +static void __iomem * __init clkgen_get_register_base(struct device_node *np) { struct device_node *pnode; - void __iomem *reg = NULL; + void __iomem *reg; pnode = of_get_parent(np); if (!pnode) @@ -398,7 +395,7 @@ static void __init st_of_clkgena_divmux_setup(struct device_node *np) if (WARN_ON(!match)) return; - data = (struct clkgena_divmux_data *)match->data; + data = match->data; reg = clkgen_get_register_base(np); if (!reg) @@ -406,18 +403,18 @@ static void __init st_of_clkgena_divmux_setup(struct device_node *np) parents = clkgen_mux_get_parents(np, &num_parents); if (IS_ERR(parents)) - return; + goto err_parents; clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL); if (!clk_data) - goto err; + goto err_alloc; clk_data->clk_num = data->num_outputs; - clk_data->clks = kzalloc(clk_data->clk_num * sizeof(struct clk *), + clk_data->clks = kcalloc(clk_data->clk_num, sizeof(struct clk *), GFP_KERNEL); if (!clk_data->clks) - goto err; + goto err_alloc_clks; for (i = 0; i < clk_data->clk_num; i++) { struct clk *clk; @@ -447,11 +444,13 @@ static void __init st_of_clkgena_divmux_setup(struct device_node *np) of_clk_add_provider(np, of_clk_src_onecell_get, clk_data); return; err: - if (clk_data) - kfree(clk_data->clks); - + kfree(clk_data->clks); +err_alloc_clks: kfree(clk_data); +err_alloc: kfree(parents); +err_parents: + iounmap(reg); } CLK_OF_DECLARE(clkgenadivmux, "st,clkgena-divmux", st_of_clkgena_divmux_setup); @@ -491,7 +490,7 @@ static void __init st_of_clkgena_prediv_setup(struct device_node *np) void __iomem *reg; const char *parent_name, *clk_name; struct clk *clk; - struct clkgena_prediv_data *data; + const struct clkgena_prediv_data *data; match = of_match_node(clkgena_prediv_of_match, np); if (!match) { @@ -499,7 +498,7 @@ static void __init st_of_clkgena_prediv_setup(struct device_node *np) return; } - data = (struct clkgena_prediv_data *)match->data; + data = match->data; reg = clkgen_get_register_base(np); if (!reg) @@ -507,18 +506,18 @@ static void __init st_of_clkgena_prediv_setup(struct device_node *np) parent_name = of_clk_get_parent_name(np, 0); if (!parent_name) - return; + goto err; if (of_property_read_string_index(np, "clock-output-names", 0, &clk_name)) - return; + goto err; clk = clk_register_divider_table(NULL, clk_name, parent_name, CLK_GET_RATE_NOCACHE, reg + data->offset, data->shift, 1, 0, data->table, NULL); if (IS_ERR(clk)) - return; + goto err; of_clk_add_provider(np, of_clk_src_simple_get, clk); pr_debug("%s: parent %s rate %u\n", @@ -527,6 +526,8 @@ static void __init st_of_clkgena_prediv_setup(struct device_node *np) (unsigned int)clk_get_rate(clk)); return; +err: + iounmap(reg); } CLK_OF_DECLARE(clkgenaprediv, "st,clkgena-prediv", st_of_clkgena_prediv_setup); @@ -630,7 +631,7 @@ static void __init st_of_clkgen_mux_setup(struct device_node *np) void __iomem *reg; const char **parents; int num_parents; - struct clkgen_mux_data *data; + const struct clkgen_mux_data *data; match = of_match_node(mux_of_match, np); if (!match) { @@ -638,7 +639,7 @@ static void __init st_of_clkgen_mux_setup(struct device_node *np) return; } - data = (struct clkgen_mux_data *)match->data; + data = match->data; reg = of_iomap(np, 0); if (!reg) { @@ -650,7 +651,7 @@ static void __init st_of_clkgen_mux_setup(struct device_node *np) if (IS_ERR(parents)) { pr_err("%s: Failed to get parents (%ld)\n", __func__, PTR_ERR(parents)); - return; + goto err_parents; } clk = clk_register_mux(NULL, np->name, parents, num_parents, @@ -666,12 +667,14 @@ static void __init st_of_clkgen_mux_setup(struct device_node *np) __clk_get_name(clk_get_parent(clk)), (unsigned int)clk_get_rate(clk)); + kfree(parents); of_clk_add_provider(np, of_clk_src_simple_get, clk); + return; err: kfree(parents); - - return; +err_parents: + iounmap(reg); } CLK_OF_DECLARE(clkgen_mux, "st,clkgen-mux", st_of_clkgen_mux_setup); @@ -707,12 +710,12 @@ static void __init st_of_clkgen_vcc_setup(struct device_node *np) const char **parents; int num_parents, i; struct clk_onecell_data *clk_data; - struct clkgen_vcc_data *data; + const struct clkgen_vcc_data *data; match = of_match_node(vcc_of_match, np); if (WARN_ON(!match)) return; - data = (struct clkgen_vcc_data *)match->data; + data = match->data; reg = of_iomap(np, 0); if (!reg) @@ -720,18 +723,18 @@ static void __init st_of_clkgen_vcc_setup(struct device_node *np) parents = clkgen_mux_get_parents(np, &num_parents); if (IS_ERR(parents)) - return; + goto err_parents; clk_data = kzalloc(sizeof(*clk_data), GFP_KERNEL); if (!clk_data) - goto err; + goto err_alloc; clk_data->clk_num = VCC_MAX_CHANNELS; - clk_data->clks = kzalloc(clk_data->clk_num * sizeof(struct clk *), + clk_data->clks = kcalloc(clk_data->clk_num, sizeof(struct clk *), GFP_KERNEL); if (!clk_data->clks) - goto err; + goto err_alloc_clks; for (i = 0; i < clk_data->clk_num; i++) { struct clk *clk; @@ -750,21 +753,21 @@ static void __init st_of_clkgen_vcc_setup(struct device_node *np) if (*clk_name == '\0') continue; - gate = kzalloc(sizeof(struct clk_gate), GFP_KERNEL); + gate = kzalloc(sizeof(*gate), GFP_KERNEL); if (!gate) - break; + goto err; - div = kzalloc(sizeof(struct clk_divider), GFP_KERNEL); + div = kzalloc(sizeof(*div), GFP_KERNEL); if (!div) { kfree(gate); - break; + goto err; } - mux = kzalloc(sizeof(struct clk_mux), GFP_KERNEL); + mux = kzalloc(sizeof(*mux), GFP_KERNEL); if (!mux) { kfree(gate); kfree(div); - break; + goto err; } gate->reg = reg + VCC_GATE_OFFSET; @@ -823,10 +826,12 @@ err: kfree(container_of(composite->mux_hw, struct clk_mux, hw)); } - if (clk_data) - kfree(clk_data->clks); - + kfree(clk_data->clks); +err_alloc_clks: kfree(clk_data); +err_alloc: kfree(parents); +err_parents: + iounmap(reg); } CLK_OF_DECLARE(clkgen_vcc, "st,clkgen-vcc", st_of_clkgen_vcc_setup); diff --git a/drivers/clk/st/clkgen-pll.c b/drivers/clk/st/clkgen-pll.c index 72d1c27eaffa..47a38a994cac 100644 --- a/drivers/clk/st/clkgen-pll.c +++ b/drivers/clk/st/clkgen-pll.c @@ -16,6 +16,7 @@ #include <linux/slab.h> #include <linux/of_address.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include "clkgen.h" @@ -291,7 +292,7 @@ static unsigned long recalc_stm_pll800c65(struct clk_hw *hw, res = (uint64_t)2 * (uint64_t)parent_rate * (uint64_t)ndiv; rate = (unsigned long)div64_u64(res, mdiv * (1 << pdiv)); - pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate); + pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate); return rate; @@ -316,7 +317,7 @@ static unsigned long recalc_stm_pll1600c65(struct clk_hw *hw, /* Note: input is divided by 1000 to avoid overflow */ rate = ((2 * (parent_rate / 1000) * ndiv) / mdiv) * 1000; - pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate); + pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate); return rate; } @@ -338,7 +339,7 @@ static unsigned long recalc_stm_pll3200c32(struct clk_hw *hw, /* Note: input is divided to avoid overflow */ rate = ((2 * (parent_rate/1000) * ndiv) / idf) * 1000; - pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate); + pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate); return rate; } @@ -365,7 +366,7 @@ static unsigned long recalc_stm_pll1200c32(struct clk_hw *hw, /* Note: input is divided by 1000 to avoid overflow */ rate = (((parent_rate / 1000) * ldf) / (odf * idf)) * 1000; - pr_debug("%s:%s rate %lu\n", __clk_get_name(hw->clk), __func__, rate); + pr_debug("%s:%s rate %lu\n", clk_hw_get_name(hw), __func__, rate); return rate; } diff --git a/drivers/clk/sunxi/Makefile b/drivers/clk/sunxi/Makefile index 058f273d6154..f5a35b82cc1a 100644 --- a/drivers/clk/sunxi/Makefile +++ b/drivers/clk/sunxi/Makefile @@ -6,6 +6,7 @@ obj-y += clk-sunxi.o clk-factors.o obj-y += clk-a10-hosc.o obj-y += clk-a20-gmac.o obj-y += clk-mod0.o +obj-y += clk-simple-gates.o obj-y += clk-sun8i-mbus.o obj-y += clk-sun9i-core.o obj-y += clk-sun9i-mmc.o diff --git a/drivers/clk/sunxi/clk-a20-gmac.c b/drivers/clk/sunxi/clk-a20-gmac.c index 0dcf4f205fb8..1611b036421c 100644 --- a/drivers/clk/sunxi/clk-a20-gmac.c +++ b/drivers/clk/sunxi/clk-a20-gmac.c @@ -80,9 +80,7 @@ static void __init sun7i_a20_gmac_clk_setup(struct device_node *node) goto free_mux; /* gmac clock requires exactly 2 parents */ - parents[0] = of_clk_get_parent_name(node, 0); - parents[1] = of_clk_get_parent_name(node, 1); - if (!parents[0] || !parents[1]) + if (of_clk_parent_fill(node, parents, 2) != 2) goto free_gate; reg = of_iomap(node, 0); diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c index 8c20190a3e9f..59428dbd607a 100644 --- a/drivers/clk/sunxi/clk-factors.c +++ b/drivers/clk/sunxi/clk-factors.c @@ -79,41 +79,42 @@ static long clk_factors_round_rate(struct clk_hw *hw, unsigned long rate, return rate; } -static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_p) +static int clk_factors_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { - struct clk *clk = hw->clk, *parent, *best_parent = NULL; + struct clk_hw *parent, *best_parent = NULL; int i, num_parents; unsigned long parent_rate, best = 0, child_rate, best_child_rate = 0; /* find the parent that can help provide the fastest rate <= rate */ - num_parents = __clk_get_num_parents(clk); + num_parents = clk_hw_get_num_parents(hw); for (i = 0; i < num_parents; i++) { - parent = clk_get_parent_by_index(clk, i); + parent = clk_hw_get_parent_by_index(hw, i); if (!parent) continue; - if (__clk_get_flags(clk) & CLK_SET_RATE_PARENT) - parent_rate = __clk_round_rate(parent, rate); + if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) + parent_rate = clk_hw_round_rate(parent, req->rate); else - parent_rate = __clk_get_rate(parent); + parent_rate = clk_hw_get_rate(parent); - child_rate = clk_factors_round_rate(hw, rate, &parent_rate); + child_rate = clk_factors_round_rate(hw, req->rate, + &parent_rate); - if (child_rate <= rate && child_rate > best_child_rate) { + if (child_rate <= req->rate && child_rate > best_child_rate) { best_parent = parent; best = parent_rate; best_child_rate = child_rate; } } - if (best_parent) - *best_parent_p = __clk_get_hw(best_parent); - *best_parent_rate = best; + if (!best_parent) + return -EINVAL; - return best_child_rate; + req->best_parent_hw = best_parent; + req->best_parent_rate = best; + req->rate = best_child_rate; + + return 0; } static int clk_factors_set_rate(struct clk_hw *hw, unsigned long rate, @@ -174,9 +175,7 @@ struct clk *sunxi_factors_register(struct device_node *node, int i = 0; /* if we have a mux, we will have >1 parents */ - while (i < FACTORS_MAX_PARENTS && - (parents[i] = of_clk_get_parent_name(node, i)) != NULL) - i++; + i = of_clk_parent_fill(node, parents, FACTORS_MAX_PARENTS); /* * some factor clocks, such as pll5 and pll6, may have multiple diff --git a/drivers/clk/sunxi/clk-mod0.c b/drivers/clk/sunxi/clk-mod0.c index 9d028aec58e5..d167e1efb927 100644 --- a/drivers/clk/sunxi/clk-mod0.c +++ b/drivers/clk/sunxi/clk-mod0.c @@ -14,10 +14,11 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/of_address.h> #include <linux/platform_device.h> +#include <linux/slab.h> #include "clk-factors.h" diff --git a/drivers/clk/sunxi/clk-simple-gates.c b/drivers/clk/sunxi/clk-simple-gates.c new file mode 100644 index 000000000000..6ce91180da1b --- /dev/null +++ b/drivers/clk/sunxi/clk-simple-gates.c @@ -0,0 +1,158 @@ +/* + * Copyright 2015 Maxime Ripard + * + * Maxime Ripard <maxime.ripard@free-electrons.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/of.h> +#include <linux/of_address.h> +#include <linux/slab.h> +#include <linux/spinlock.h> + +static DEFINE_SPINLOCK(gates_lock); + +static void __init sunxi_simple_gates_setup(struct device_node *node, + const int protected[], + int nprotected) +{ + struct clk_onecell_data *clk_data; + const char *clk_parent, *clk_name; + struct property *prop; + struct resource res; + void __iomem *clk_reg; + void __iomem *reg; + const __be32 *p; + int number, i = 0, j; + u8 clk_bit; + u32 index; + + reg = of_io_request_and_map(node, 0, of_node_full_name(node)); + if (IS_ERR(reg)) + return; + + clk_parent = of_clk_get_parent_name(node, 0); + + clk_data = kmalloc(sizeof(struct clk_onecell_data), GFP_KERNEL); + if (!clk_data) + goto err_unmap; + + number = of_property_count_u32_elems(node, "clock-indices"); + of_property_read_u32_index(node, "clock-indices", number - 1, &number); + + clk_data->clks = kcalloc(number + 1, sizeof(struct clk *), GFP_KERNEL); + if (!clk_data->clks) + goto err_free_data; + + of_property_for_each_u32(node, "clock-indices", prop, p, index) { + of_property_read_string_index(node, "clock-output-names", + i, &clk_name); + + clk_reg = reg + 4 * (index / 32); + clk_bit = index % 32; + + clk_data->clks[index] = clk_register_gate(NULL, clk_name, + clk_parent, 0, + clk_reg, + clk_bit, + 0, &gates_lock); + i++; + + if (IS_ERR(clk_data->clks[index])) { + WARN_ON(true); + continue; + } + + for (j = 0; j < nprotected; j++) + if (protected[j] == index) + clk_prepare_enable(clk_data->clks[index]); + + } + + clk_data->clk_num = number + 1; + of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); + + return; + +err_free_data: + kfree(clk_data); +err_unmap: + iounmap(reg); + of_address_to_resource(node, 0, &res); + release_mem_region(res.start, resource_size(&res)); +} + +static void __init sunxi_simple_gates_init(struct device_node *node) +{ + sunxi_simple_gates_setup(node, NULL, 0); +} + +CLK_OF_DECLARE(sun4i_a10_apb0, "allwinner,sun4i-a10-apb0-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun4i_a10_apb1, "allwinner,sun4i-a10-apb1-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun4i_a10_axi, "allwinner,sun4i-a10-axi-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun5i_a10s_apb0, "allwinner,sun5i-a10s-apb0-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun5i_a10s_apb1, "allwinner,sun5i-a10s-apb1-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun5i_a13_apb0, "allwinner,sun5i-a13-apb0-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun5i_a13_apb1, "allwinner,sun5i-a13-apb1-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun6i_a31_ahb1, "allwinner,sun6i-a31-ahb1-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun6i_a31_apb1, "allwinner,sun6i-a31-apb1-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun6i_a31_apb2, "allwinner,sun6i-a31-apb2-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun7i_a20_apb0, "allwinner,sun7i-a20-apb0-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun7i_a20_apb1, "allwinner,sun7i-a20-apb1-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun8i_a23_ahb1, "allwinner,sun8i-a23-ahb1-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun8i_a23_apb1, "allwinner,sun8i-a23-apb1-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun8i_a23_apb2, "allwinner,sun8i-a23-apb2-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun9i_a80_ahb0, "allwinner,sun9i-a80-ahb0-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun9i_a80_ahb1, "allwinner,sun9i-a80-ahb1-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun9i_a80_ahb2, "allwinner,sun9i-a80-ahb2-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun9i_a80_apb0, "allwinner,sun9i-a80-apb0-gates-clk", + sunxi_simple_gates_init); +CLK_OF_DECLARE(sun9i_a80_apb1, "allwinner,sun9i-a80-apb1-gates-clk", + sunxi_simple_gates_init); + +static const int sun4i_a10_ahb_critical_clocks[] __initconst = { + 14, /* ahb_sdram */ +}; + +static void __init sun4i_a10_ahb_init(struct device_node *node) +{ + sunxi_simple_gates_setup(node, sun4i_a10_ahb_critical_clocks, + ARRAY_SIZE(sun4i_a10_ahb_critical_clocks)); +} +CLK_OF_DECLARE(sun4i_a10_ahb, "allwinner,sun4i-a10-ahb-gates-clk", + sun4i_a10_ahb_init); +CLK_OF_DECLARE(sun5i_a10s_ahb, "allwinner,sun5i-a10s-ahb-gates-clk", + sun4i_a10_ahb_init); +CLK_OF_DECLARE(sun5i_a13_ahb, "allwinner,sun5i-a13-ahb-gates-clk", + sun4i_a10_ahb_init); +CLK_OF_DECLARE(sun7i_a20_ahb, "allwinner,sun7i-a20-ahb-gates-clk", + sun4i_a10_ahb_init); diff --git a/drivers/clk/sunxi/clk-sun6i-ar100.c b/drivers/clk/sunxi/clk-sun6i-ar100.c index 63cf149195ae..806fd019c05d 100644 --- a/drivers/clk/sunxi/clk-sun6i-ar100.c +++ b/drivers/clk/sunxi/clk-sun6i-ar100.c @@ -44,28 +44,25 @@ static unsigned long ar100_recalc_rate(struct clk_hw *hw, return (parent_rate >> shift) / (div + 1); } -static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk) +static int ar100_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { - int nparents = __clk_get_num_parents(hw->clk); + int nparents = clk_hw_get_num_parents(hw); long best_rate = -EINVAL; int i; - *best_parent_clk = NULL; + req->best_parent_hw = NULL; for (i = 0; i < nparents; i++) { unsigned long parent_rate; unsigned long tmp_rate; - struct clk *parent; + struct clk_hw *parent; unsigned long div; int shift; - parent = clk_get_parent_by_index(hw->clk, i); - parent_rate = __clk_get_rate(parent); - div = DIV_ROUND_UP(parent_rate, rate); + parent = clk_hw_get_parent_by_index(hw, i); + parent_rate = clk_hw_get_rate(parent); + div = DIV_ROUND_UP(parent_rate, req->rate); /* * The AR100 clk contains 2 divisors: @@ -101,14 +98,19 @@ static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate, continue; tmp_rate = (parent_rate >> shift) / div; - if (!*best_parent_clk || tmp_rate > best_rate) { - *best_parent_clk = __clk_get_hw(parent); - *best_parent_rate = parent_rate; + if (!req->best_parent_hw || tmp_rate > best_rate) { + req->best_parent_hw = parent; + req->best_parent_rate = parent_rate; best_rate = tmp_rate; } } - return best_rate; + if (best_rate < 0) + return best_rate; + + req->rate = best_rate; + + return 0; } static int ar100_set_parent(struct clk_hw *hw, u8 index) @@ -180,7 +182,6 @@ static int sun6i_a31_ar100_clk_probe(struct platform_device *pdev) struct resource *r; struct clk *clk; int nparents; - int i; ar100 = devm_kzalloc(&pdev->dev, sizeof(*ar100), GFP_KERNEL); if (!ar100) @@ -195,8 +196,7 @@ static int sun6i_a31_ar100_clk_probe(struct platform_device *pdev) if (nparents > SUN6I_AR100_MAX_PARENTS) nparents = SUN6I_AR100_MAX_PARENTS; - for (i = 0; i < nparents; i++) - parents[i] = of_clk_get_parent_name(np, i); + of_clk_parent_fill(np, parents, nparents); of_property_read_string(np, "clock-output-names", &clk_name); diff --git a/drivers/clk/sunxi/clk-sun8i-mbus.c b/drivers/clk/sunxi/clk-sun8i-mbus.c index 14cd026064bf..bf117a636d23 100644 --- a/drivers/clk/sunxi/clk-sun8i-mbus.c +++ b/drivers/clk/sunxi/clk-sun8i-mbus.c @@ -14,8 +14,8 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/of_address.h> #include "clk-factors.h" diff --git a/drivers/clk/sunxi/clk-sun9i-core.c b/drivers/clk/sunxi/clk-sun9i-core.c index 887f4ea161bb..6c4c98324d3c 100644 --- a/drivers/clk/sunxi/clk-sun9i-core.c +++ b/drivers/clk/sunxi/clk-sun9i-core.c @@ -14,8 +14,8 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/log2.h> diff --git a/drivers/clk/sunxi/clk-sun9i-mmc.c b/drivers/clk/sunxi/clk-sun9i-mmc.c index 710c273648d7..3436a948b796 100644 --- a/drivers/clk/sunxi/clk-sun9i-mmc.c +++ b/drivers/clk/sunxi/clk-sun9i-mmc.c @@ -14,14 +14,15 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_device.h> #include <linux/reset.h> #include <linux/platform_device.h> #include <linux/reset-controller.h> +#include <linux/slab.h> #include <linux/spinlock.h> #define SUN9I_MMC_WIDTH 4 diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index abf7b37faf73..413070d07b3f 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -14,11 +14,13 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/reset-controller.h> +#include <linux/slab.h> #include <linux/spinlock.h> #include <linux/log2.h> @@ -118,42 +120,42 @@ static long sun6i_ahb1_clk_round(unsigned long rate, u8 *divp, u8 *pre_divp, return (parent_rate / calcm) >> calcp; } -static long sun6i_ahb1_clk_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk) +static int sun6i_ahb1_clk_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { - struct clk *clk = hw->clk, *parent, *best_parent = NULL; + struct clk_hw *parent, *best_parent = NULL; int i, num_parents; unsigned long parent_rate, best = 0, child_rate, best_child_rate = 0; /* find the parent that can help provide the fastest rate <= rate */ - num_parents = __clk_get_num_parents(clk); + num_parents = clk_hw_get_num_parents(hw); for (i = 0; i < num_parents; i++) { - parent = clk_get_parent_by_index(clk, i); + parent = clk_hw_get_parent_by_index(hw, i); if (!parent) continue; - if (__clk_get_flags(clk) & CLK_SET_RATE_PARENT) - parent_rate = __clk_round_rate(parent, rate); + if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) + parent_rate = clk_hw_round_rate(parent, req->rate); else - parent_rate = __clk_get_rate(parent); + parent_rate = clk_hw_get_rate(parent); - child_rate = sun6i_ahb1_clk_round(rate, NULL, NULL, i, + child_rate = sun6i_ahb1_clk_round(req->rate, NULL, NULL, i, parent_rate); - if (child_rate <= rate && child_rate > best_child_rate) { + if (child_rate <= req->rate && child_rate > best_child_rate) { best_parent = parent; best = parent_rate; best_child_rate = child_rate; } } - if (best_parent) - *best_parent_clk = __clk_get_hw(best_parent); - *best_parent_rate = best; + if (!best_parent) + return -EINVAL; - return best_child_rate; + req->best_parent_hw = best_parent; + req->best_parent_rate = best; + req->rate = best_child_rate; + + return 0; } static int sun6i_ahb1_clk_set_rate(struct clk_hw *hw, unsigned long rate, @@ -195,17 +197,14 @@ static void __init sun6i_ahb1_clk_setup(struct device_node *node) const char *clk_name = node->name; const char *parents[SUN6I_AHB1_MAX_PARENTS]; void __iomem *reg; - int i = 0; + int i; reg = of_io_request_and_map(node, 0, of_node_full_name(node)); if (IS_ERR(reg)) return; /* we have a mux, we will have >1 parents */ - while (i < SUN6I_AHB1_MAX_PARENTS && - (parents[i] = of_clk_get_parent_name(node, i)) != NULL) - i++; - + i = of_clk_parent_fill(node, parents, SUN6I_AHB1_MAX_PARENTS); of_property_read_string(node, "clock-output-names", &clk_name); ahb1 = kzalloc(sizeof(struct sun6i_ahb1_clk), GFP_KERNEL); @@ -786,14 +785,11 @@ static void __init sunxi_mux_clk_setup(struct device_node *node, const char *clk_name = node->name; const char *parents[SUNXI_MAX_PARENTS]; void __iomem *reg; - int i = 0; + int i; reg = of_iomap(node, 0); - while (i < SUNXI_MAX_PARENTS && - (parents[i] = of_clk_get_parent_name(node, i)) != NULL) - i++; - + i = of_clk_parent_fill(node, parents, SUNXI_MAX_PARENTS); of_property_read_string(node, "clock-output-names", &clk_name); clk = clk_register_mux(NULL, clk_name, parents, i, @@ -900,150 +896,6 @@ struct gates_data { DECLARE_BITMAP(mask, SUNXI_GATES_MAX_SIZE); }; -static const struct gates_data sun4i_axi_gates_data __initconst = { - .mask = {1}, -}; - -static const struct gates_data sun4i_ahb_gates_data __initconst = { - .mask = {0x7F77FFF, 0x14FB3F}, -}; - -static const struct gates_data sun5i_a10s_ahb_gates_data __initconst = { - .mask = {0x147667e7, 0x185915}, -}; - -static const struct gates_data sun5i_a13_ahb_gates_data __initconst = { - .mask = {0x107067e7, 0x185111}, -}; - -static const struct gates_data sun6i_a31_ahb1_gates_data __initconst = { - .mask = {0xEDFE7F62, 0x794F931}, -}; - -static const struct gates_data sun7i_a20_ahb_gates_data __initconst = { - .mask = { 0x12f77fff, 0x16ff3f }, -}; - -static const struct gates_data sun8i_a23_ahb1_gates_data __initconst = { - .mask = {0x25386742, 0x2505111}, -}; - -static const struct gates_data sun9i_a80_ahb0_gates_data __initconst = { - .mask = {0xF5F12B}, -}; - -static const struct gates_data sun9i_a80_ahb1_gates_data __initconst = { - .mask = {0x1E20003}, -}; - -static const struct gates_data sun9i_a80_ahb2_gates_data __initconst = { - .mask = {0x9B7}, -}; - -static const struct gates_data sun4i_apb0_gates_data __initconst = { - .mask = {0x4EF}, -}; - -static const struct gates_data sun5i_a10s_apb0_gates_data __initconst = { - .mask = {0x469}, -}; - -static const struct gates_data sun5i_a13_apb0_gates_data __initconst = { - .mask = {0x61}, -}; - -static const struct gates_data sun7i_a20_apb0_gates_data __initconst = { - .mask = { 0x4ff }, -}; - -static const struct gates_data sun9i_a80_apb0_gates_data __initconst = { - .mask = {0xEB822}, -}; - -static const struct gates_data sun4i_apb1_gates_data __initconst = { - .mask = {0xFF00F7}, -}; - -static const struct gates_data sun5i_a10s_apb1_gates_data __initconst = { - .mask = {0xf0007}, -}; - -static const struct gates_data sun5i_a13_apb1_gates_data __initconst = { - .mask = {0xa0007}, -}; - -static const struct gates_data sun6i_a31_apb1_gates_data __initconst = { - .mask = {0x3031}, -}; - -static const struct gates_data sun8i_a23_apb1_gates_data __initconst = { - .mask = {0x3021}, -}; - -static const struct gates_data sun6i_a31_apb2_gates_data __initconst = { - .mask = {0x3F000F}, -}; - -static const struct gates_data sun7i_a20_apb1_gates_data __initconst = { - .mask = { 0xff80ff }, -}; - -static const struct gates_data sun9i_a80_apb1_gates_data __initconst = { - .mask = {0x3F001F}, -}; - -static const struct gates_data sun8i_a23_apb2_gates_data __initconst = { - .mask = {0x1F0007}, -}; - -static void __init sunxi_gates_clk_setup(struct device_node *node, - struct gates_data *data) -{ - struct clk_onecell_data *clk_data; - const char *clk_parent; - const char *clk_name; - void __iomem *reg; - int qty; - int i = 0; - int j = 0; - - reg = of_iomap(node, 0); - - clk_parent = of_clk_get_parent_name(node, 0); - - /* Worst-case size approximation and memory allocation */ - qty = find_last_bit(data->mask, SUNXI_GATES_MAX_SIZE); - clk_data = kmalloc(sizeof(struct clk_onecell_data), GFP_KERNEL); - if (!clk_data) - return; - clk_data->clks = kzalloc((qty+1) * sizeof(struct clk *), GFP_KERNEL); - if (!clk_data->clks) { - kfree(clk_data); - return; - } - - for_each_set_bit(i, data->mask, SUNXI_GATES_MAX_SIZE) { - of_property_read_string_index(node, "clock-output-names", - j, &clk_name); - - clk_data->clks[i] = clk_register_gate(NULL, clk_name, - clk_parent, 0, - reg + 4 * (i/32), i % 32, - 0, &clk_lock); - WARN_ON(IS_ERR(clk_data->clks[i])); - clk_register_clkdev(clk_data->clks[i], clk_name, NULL); - - j++; - } - - /* Adjust to the real max */ - clk_data->clk_num = i; - - of_clk_add_provider(node, of_clk_src_onecell_get, clk_data); -} - - - /** * sunxi_divs_clk_setup() helper data */ @@ -1281,34 +1133,6 @@ static const struct of_device_id clk_mux_match[] __initconst = { {} }; -/* Matches for gate clocks */ -static const struct of_device_id clk_gates_match[] __initconst = { - {.compatible = "allwinner,sun4i-a10-axi-gates-clk", .data = &sun4i_axi_gates_data,}, - {.compatible = "allwinner,sun4i-a10-ahb-gates-clk", .data = &sun4i_ahb_gates_data,}, - {.compatible = "allwinner,sun5i-a10s-ahb-gates-clk", .data = &sun5i_a10s_ahb_gates_data,}, - {.compatible = "allwinner,sun5i-a13-ahb-gates-clk", .data = &sun5i_a13_ahb_gates_data,}, - {.compatible = "allwinner,sun6i-a31-ahb1-gates-clk", .data = &sun6i_a31_ahb1_gates_data,}, - {.compatible = "allwinner,sun7i-a20-ahb-gates-clk", .data = &sun7i_a20_ahb_gates_data,}, - {.compatible = "allwinner,sun8i-a23-ahb1-gates-clk", .data = &sun8i_a23_ahb1_gates_data,}, - {.compatible = "allwinner,sun9i-a80-ahb0-gates-clk", .data = &sun9i_a80_ahb0_gates_data,}, - {.compatible = "allwinner,sun9i-a80-ahb1-gates-clk", .data = &sun9i_a80_ahb1_gates_data,}, - {.compatible = "allwinner,sun9i-a80-ahb2-gates-clk", .data = &sun9i_a80_ahb2_gates_data,}, - {.compatible = "allwinner,sun4i-a10-apb0-gates-clk", .data = &sun4i_apb0_gates_data,}, - {.compatible = "allwinner,sun5i-a10s-apb0-gates-clk", .data = &sun5i_a10s_apb0_gates_data,}, - {.compatible = "allwinner,sun5i-a13-apb0-gates-clk", .data = &sun5i_a13_apb0_gates_data,}, - {.compatible = "allwinner,sun7i-a20-apb0-gates-clk", .data = &sun7i_a20_apb0_gates_data,}, - {.compatible = "allwinner,sun9i-a80-apb0-gates-clk", .data = &sun9i_a80_apb0_gates_data,}, - {.compatible = "allwinner,sun4i-a10-apb1-gates-clk", .data = &sun4i_apb1_gates_data,}, - {.compatible = "allwinner,sun5i-a10s-apb1-gates-clk", .data = &sun5i_a10s_apb1_gates_data,}, - {.compatible = "allwinner,sun5i-a13-apb1-gates-clk", .data = &sun5i_a13_apb1_gates_data,}, - {.compatible = "allwinner,sun6i-a31-apb1-gates-clk", .data = &sun6i_a31_apb1_gates_data,}, - {.compatible = "allwinner,sun7i-a20-apb1-gates-clk", .data = &sun7i_a20_apb1_gates_data,}, - {.compatible = "allwinner,sun8i-a23-apb1-gates-clk", .data = &sun8i_a23_apb1_gates_data,}, - {.compatible = "allwinner,sun9i-a80-apb1-gates-clk", .data = &sun9i_a80_apb1_gates_data,}, - {.compatible = "allwinner,sun6i-a31-apb2-gates-clk", .data = &sun6i_a31_apb2_gates_data,}, - {.compatible = "allwinner,sun8i-a23-apb2-gates-clk", .data = &sun8i_a23_apb2_gates_data,}, - {} -}; static void __init of_sunxi_table_clock_setup(const struct of_device_id *clk_match, void *function) @@ -1340,9 +1164,6 @@ static void __init sunxi_init_clocks(const char *clocks[], int nclocks) /* Register mux clocks */ of_sunxi_table_clock_setup(clk_mux_match, sunxi_mux_clk_setup); - /* Register gate clocks */ - of_sunxi_table_clock_setup(clk_gates_match, sunxi_gates_clk_setup); - /* Protect the clocks that needs to stay on */ for (i = 0; i < nclocks; i++) { struct clk *clk = clk_get(NULL, clocks[i]); @@ -1354,7 +1175,6 @@ static void __init sunxi_init_clocks(const char *clocks[], int nclocks) static const char *sun4i_a10_critical_clocks[] __initdata = { "pll5_ddr", - "ahb_sdram", }; static void __init sun4i_a10_init_clocks(struct device_node *node) @@ -1367,7 +1187,6 @@ CLK_OF_DECLARE(sun4i_a10_clk_init, "allwinner,sun4i-a10", sun4i_a10_init_clocks) static const char *sun5i_critical_clocks[] __initdata = { "cpu", "pll5_ddr", - "ahb_sdram", }; static void __init sun5i_init_clocks(struct device_node *node) diff --git a/drivers/clk/sunxi/clk-usb.c b/drivers/clk/sunxi/clk-usb.c index 3a25f9588e67..1a72cd672839 100644 --- a/drivers/clk/sunxi/clk-usb.c +++ b/drivers/clk/sunxi/clk-usb.c @@ -14,11 +14,12 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/reset-controller.h> +#include <linux/slab.h> #include <linux/spinlock.h> diff --git a/drivers/clk/tegra/Makefile b/drivers/clk/tegra/Makefile index aec862ba7a17..826c325dc2e8 100644 --- a/drivers/clk/tegra/Makefile +++ b/drivers/clk/tegra/Makefile @@ -1,5 +1,6 @@ obj-y += clk.o obj-y += clk-audio-sync.o +obj-y += clk-dfll.o obj-y += clk-divider.o obj-y += clk-periph.o obj-y += clk-periph-gate.o @@ -16,4 +17,6 @@ obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += clk-tegra20.o obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += clk-tegra30.o obj-$(CONFIG_ARCH_TEGRA_114_SOC) += clk-tegra114.o obj-$(CONFIG_ARCH_TEGRA_124_SOC) += clk-tegra124.o +obj-$(CONFIG_ARCH_TEGRA_124_SOC) += clk-tegra124-dfll-fcpu.o obj-$(CONFIG_ARCH_TEGRA_132_SOC) += clk-tegra124.o +obj-y += cvb.o diff --git a/drivers/clk/tegra/clk-dfll.c b/drivers/clk/tegra/clk-dfll.c new file mode 100644 index 000000000000..c2ff859ee0e8 --- /dev/null +++ b/drivers/clk/tegra/clk-dfll.c @@ -0,0 +1,1757 @@ +/* + * clk-dfll.c - Tegra DFLL clock source common code + * + * Copyright (C) 2012-2014 NVIDIA Corporation. All rights reserved. + * + * Aleksandr Frid <afrid@nvidia.com> + * Paul Walmsley <pwalmsley@nvidia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * This library is for the DVCO and DFLL IP blocks on the Tegra124 + * SoC. These IP blocks together are also known at NVIDIA as + * "CL-DVFS". To try to avoid confusion, this code refers to them + * collectively as the "DFLL." + * + * The DFLL is a root clocksource which tolerates some amount of + * supply voltage noise. Tegra124 uses it to clock the fast CPU + * complex when the target CPU speed is above a particular rate. The + * DFLL can be operated in either open-loop mode or closed-loop mode. + * In open-loop mode, the DFLL generates an output clock appropriate + * to the supply voltage. In closed-loop mode, when configured with a + * target frequency, the DFLL minimizes supply voltage while + * delivering an average frequency equal to the target. + * + * Devices clocked by the DFLL must be able to tolerate frequency + * variation. In the case of the CPU, it's important to note that the + * CPU cycle time will vary. This has implications for + * performance-measurement code and any code that relies on the CPU + * cycle time to delay for a certain length of time. + * + */ + +#include <linux/clk.h> +#include <linux/clk-provider.h> +#include <linux/debugfs.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/i2c.h> +#include <linux/io.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/of.h> +#include <linux/pm_opp.h> +#include <linux/pm_runtime.h> +#include <linux/regmap.h> +#include <linux/regulator/consumer.h> +#include <linux/reset.h> +#include <linux/seq_file.h> + +#include "clk-dfll.h" + +/* + * DFLL control registers - access via dfll_{readl,writel} + */ + +/* DFLL_CTRL: DFLL control register */ +#define DFLL_CTRL 0x00 +#define DFLL_CTRL_MODE_MASK 0x03 + +/* DFLL_CONFIG: DFLL sample rate control */ +#define DFLL_CONFIG 0x04 +#define DFLL_CONFIG_DIV_MASK 0xff +#define DFLL_CONFIG_DIV_PRESCALE 32 + +/* DFLL_PARAMS: tuning coefficients for closed loop integrator */ +#define DFLL_PARAMS 0x08 +#define DFLL_PARAMS_CG_SCALE (0x1 << 24) +#define DFLL_PARAMS_FORCE_MODE_SHIFT 22 +#define DFLL_PARAMS_FORCE_MODE_MASK (0x3 << DFLL_PARAMS_FORCE_MODE_SHIFT) +#define DFLL_PARAMS_CF_PARAM_SHIFT 16 +#define DFLL_PARAMS_CF_PARAM_MASK (0x3f << DFLL_PARAMS_CF_PARAM_SHIFT) +#define DFLL_PARAMS_CI_PARAM_SHIFT 8 +#define DFLL_PARAMS_CI_PARAM_MASK (0x7 << DFLL_PARAMS_CI_PARAM_SHIFT) +#define DFLL_PARAMS_CG_PARAM_SHIFT 0 +#define DFLL_PARAMS_CG_PARAM_MASK (0xff << DFLL_PARAMS_CG_PARAM_SHIFT) + +/* DFLL_TUNE0: delay line configuration register 0 */ +#define DFLL_TUNE0 0x0c + +/* DFLL_TUNE1: delay line configuration register 1 */ +#define DFLL_TUNE1 0x10 + +/* DFLL_FREQ_REQ: target DFLL frequency control */ +#define DFLL_FREQ_REQ 0x14 +#define DFLL_FREQ_REQ_FORCE_ENABLE (0x1 << 28) +#define DFLL_FREQ_REQ_FORCE_SHIFT 16 +#define DFLL_FREQ_REQ_FORCE_MASK (0xfff << DFLL_FREQ_REQ_FORCE_SHIFT) +#define FORCE_MAX 2047 +#define FORCE_MIN -2048 +#define DFLL_FREQ_REQ_SCALE_SHIFT 8 +#define DFLL_FREQ_REQ_SCALE_MASK (0xff << DFLL_FREQ_REQ_SCALE_SHIFT) +#define DFLL_FREQ_REQ_SCALE_MAX 256 +#define DFLL_FREQ_REQ_FREQ_VALID (0x1 << 7) +#define DFLL_FREQ_REQ_MULT_SHIFT 0 +#define DFLL_FREQ_REG_MULT_MASK (0x7f << DFLL_FREQ_REQ_MULT_SHIFT) +#define FREQ_MAX 127 + +/* DFLL_DROOP_CTRL: droop prevention control */ +#define DFLL_DROOP_CTRL 0x1c + +/* DFLL_OUTPUT_CFG: closed loop mode control registers */ +/* NOTE: access via dfll_i2c_{readl,writel} */ +#define DFLL_OUTPUT_CFG 0x20 +#define DFLL_OUTPUT_CFG_I2C_ENABLE (0x1 << 30) +#define OUT_MASK 0x3f +#define DFLL_OUTPUT_CFG_SAFE_SHIFT 24 +#define DFLL_OUTPUT_CFG_SAFE_MASK \ + (OUT_MASK << DFLL_OUTPUT_CFG_SAFE_SHIFT) +#define DFLL_OUTPUT_CFG_MAX_SHIFT 16 +#define DFLL_OUTPUT_CFG_MAX_MASK \ + (OUT_MASK << DFLL_OUTPUT_CFG_MAX_SHIFT) +#define DFLL_OUTPUT_CFG_MIN_SHIFT 8 +#define DFLL_OUTPUT_CFG_MIN_MASK \ + (OUT_MASK << DFLL_OUTPUT_CFG_MIN_SHIFT) +#define DFLL_OUTPUT_CFG_PWM_DELTA (0x1 << 7) +#define DFLL_OUTPUT_CFG_PWM_ENABLE (0x1 << 6) +#define DFLL_OUTPUT_CFG_PWM_DIV_SHIFT 0 +#define DFLL_OUTPUT_CFG_PWM_DIV_MASK \ + (OUT_MASK << DFLL_OUTPUT_CFG_PWM_DIV_SHIFT) + +/* DFLL_OUTPUT_FORCE: closed loop mode voltage forcing control */ +#define DFLL_OUTPUT_FORCE 0x24 +#define DFLL_OUTPUT_FORCE_ENABLE (0x1 << 6) +#define DFLL_OUTPUT_FORCE_VALUE_SHIFT 0 +#define DFLL_OUTPUT_FORCE_VALUE_MASK \ + (OUT_MASK << DFLL_OUTPUT_FORCE_VALUE_SHIFT) + +/* DFLL_MONITOR_CTRL: internal monitor data source control */ +#define DFLL_MONITOR_CTRL 0x28 +#define DFLL_MONITOR_CTRL_FREQ 6 + +/* DFLL_MONITOR_DATA: internal monitor data output */ +#define DFLL_MONITOR_DATA 0x2c +#define DFLL_MONITOR_DATA_NEW_MASK (0x1 << 16) +#define DFLL_MONITOR_DATA_VAL_SHIFT 0 +#define DFLL_MONITOR_DATA_VAL_MASK (0xFFFF << DFLL_MONITOR_DATA_VAL_SHIFT) + +/* + * I2C output control registers - access via dfll_i2c_{readl,writel} + */ + +/* DFLL_I2C_CFG: I2C controller configuration register */ +#define DFLL_I2C_CFG 0x40 +#define DFLL_I2C_CFG_ARB_ENABLE (0x1 << 20) +#define DFLL_I2C_CFG_HS_CODE_SHIFT 16 +#define DFLL_I2C_CFG_HS_CODE_MASK (0x7 << DFLL_I2C_CFG_HS_CODE_SHIFT) +#define DFLL_I2C_CFG_PACKET_ENABLE (0x1 << 15) +#define DFLL_I2C_CFG_SIZE_SHIFT 12 +#define DFLL_I2C_CFG_SIZE_MASK (0x7 << DFLL_I2C_CFG_SIZE_SHIFT) +#define DFLL_I2C_CFG_SLAVE_ADDR_10 (0x1 << 10) +#define DFLL_I2C_CFG_SLAVE_ADDR_SHIFT_7BIT 1 +#define DFLL_I2C_CFG_SLAVE_ADDR_SHIFT_10BIT 0 + +/* DFLL_I2C_VDD_REG_ADDR: PMIC I2C address for closed loop mode */ +#define DFLL_I2C_VDD_REG_ADDR 0x44 + +/* DFLL_I2C_STS: I2C controller status */ +#define DFLL_I2C_STS 0x48 +#define DFLL_I2C_STS_I2C_LAST_SHIFT 1 +#define DFLL_I2C_STS_I2C_REQ_PENDING 0x1 + +/* DFLL_INTR_STS: DFLL interrupt status register */ +#define DFLL_INTR_STS 0x5c + +/* DFLL_INTR_EN: DFLL interrupt enable register */ +#define DFLL_INTR_EN 0x60 +#define DFLL_INTR_MIN_MASK 0x1 +#define DFLL_INTR_MAX_MASK 0x2 + +/* + * Integrated I2C controller registers - relative to td->i2c_controller_base + */ + +/* DFLL_I2C_CLK_DIVISOR: I2C controller clock divisor */ +#define DFLL_I2C_CLK_DIVISOR 0x6c +#define DFLL_I2C_CLK_DIVISOR_MASK 0xffff +#define DFLL_I2C_CLK_DIVISOR_FS_SHIFT 16 +#define DFLL_I2C_CLK_DIVISOR_HS_SHIFT 0 +#define DFLL_I2C_CLK_DIVISOR_PREDIV 8 +#define DFLL_I2C_CLK_DIVISOR_HSMODE_PREDIV 12 + +/* + * Other constants + */ + +/* MAX_DFLL_VOLTAGES: number of LUT entries in the DFLL IP block */ +#define MAX_DFLL_VOLTAGES 33 + +/* + * REF_CLK_CYC_PER_DVCO_SAMPLE: the number of ref_clk cycles that the hardware + * integrates the DVCO counter over - used for debug rate monitoring and + * droop control + */ +#define REF_CLK_CYC_PER_DVCO_SAMPLE 4 + +/* + * REF_CLOCK_RATE: the DFLL reference clock rate currently supported by this + * driver, in Hz + */ +#define REF_CLOCK_RATE 51000000UL + +#define DVCO_RATE_TO_MULT(rate, ref_rate) ((rate) / ((ref_rate) / 2)) +#define MULT_TO_DVCO_RATE(mult, ref_rate) ((mult) * ((ref_rate) / 2)) + +/** + * enum dfll_ctrl_mode - DFLL hardware operating mode + * @DFLL_UNINITIALIZED: (uninitialized state - not in hardware bitfield) + * @DFLL_DISABLED: DFLL not generating an output clock + * @DFLL_OPEN_LOOP: DVCO running, but DFLL not adjusting voltage + * @DFLL_CLOSED_LOOP: DVCO running, and DFLL adjusting voltage to match + * the requested rate + * + * The integer corresponding to the last two states, minus one, is + * written to the DFLL hardware to change operating modes. + */ +enum dfll_ctrl_mode { + DFLL_UNINITIALIZED = 0, + DFLL_DISABLED = 1, + DFLL_OPEN_LOOP = 2, + DFLL_CLOSED_LOOP = 3, +}; + +/** + * enum dfll_tune_range - voltage range that the driver believes it's in + * @DFLL_TUNE_UNINITIALIZED: DFLL tuning not yet programmed + * @DFLL_TUNE_LOW: DFLL in the low-voltage range (or open-loop mode) + * + * Some DFLL tuning parameters may need to change depending on the + * DVCO's voltage; these states represent the ranges that the driver + * supports. These are software states; these values are never + * written into registers. + */ +enum dfll_tune_range { + DFLL_TUNE_UNINITIALIZED = 0, + DFLL_TUNE_LOW = 1, +}; + +/** + * struct dfll_rate_req - target DFLL rate request data + * @rate: target frequency, after the postscaling + * @dvco_target_rate: target frequency, after the postscaling + * @lut_index: LUT index at which voltage the dvco_target_rate will be reached + * @mult_bits: value to program to the MULT bits of the DFLL_FREQ_REQ register + * @scale_bits: value to program to the SCALE bits of the DFLL_FREQ_REQ register + */ +struct dfll_rate_req { + unsigned long rate; + unsigned long dvco_target_rate; + int lut_index; + u8 mult_bits; + u8 scale_bits; +}; + +struct tegra_dfll { + struct device *dev; + struct tegra_dfll_soc_data *soc; + + void __iomem *base; + void __iomem *i2c_base; + void __iomem *i2c_controller_base; + void __iomem *lut_base; + + struct regulator *vdd_reg; + struct clk *soc_clk; + struct clk *ref_clk; + struct clk *i2c_clk; + struct clk *dfll_clk; + struct reset_control *dvco_rst; + unsigned long ref_rate; + unsigned long i2c_clk_rate; + unsigned long dvco_rate_min; + + enum dfll_ctrl_mode mode; + enum dfll_tune_range tune_range; + struct dentry *debugfs_dir; + struct clk_hw dfll_clk_hw; + const char *output_clock_name; + struct dfll_rate_req last_req; + unsigned long last_unrounded_rate; + + /* Parameters from DT */ + u32 droop_ctrl; + u32 sample_rate; + u32 force_mode; + u32 cf; + u32 ci; + u32 cg; + bool cg_scale; + + /* I2C interface parameters */ + u32 i2c_fs_rate; + u32 i2c_reg; + u32 i2c_slave_addr; + + /* i2c_lut array entries are regulator framework selectors */ + unsigned i2c_lut[MAX_DFLL_VOLTAGES]; + int i2c_lut_size; + u8 lut_min, lut_max, lut_safe; +}; + +#define clk_hw_to_dfll(_hw) container_of(_hw, struct tegra_dfll, dfll_clk_hw) + +/* mode_name: map numeric DFLL modes to names for friendly console messages */ +static const char * const mode_name[] = { + [DFLL_UNINITIALIZED] = "uninitialized", + [DFLL_DISABLED] = "disabled", + [DFLL_OPEN_LOOP] = "open_loop", + [DFLL_CLOSED_LOOP] = "closed_loop", +}; + +/* + * Register accessors + */ + +static inline u32 dfll_readl(struct tegra_dfll *td, u32 offs) +{ + return __raw_readl(td->base + offs); +} + +static inline void dfll_writel(struct tegra_dfll *td, u32 val, u32 offs) +{ + WARN_ON(offs >= DFLL_I2C_CFG); + __raw_writel(val, td->base + offs); +} + +static inline void dfll_wmb(struct tegra_dfll *td) +{ + dfll_readl(td, DFLL_CTRL); +} + +/* I2C output control registers - for addresses above DFLL_I2C_CFG */ + +static inline u32 dfll_i2c_readl(struct tegra_dfll *td, u32 offs) +{ + return __raw_readl(td->i2c_base + offs); +} + +static inline void dfll_i2c_writel(struct tegra_dfll *td, u32 val, u32 offs) +{ + __raw_writel(val, td->i2c_base + offs); +} + +static inline void dfll_i2c_wmb(struct tegra_dfll *td) +{ + dfll_i2c_readl(td, DFLL_I2C_CFG); +} + +/** + * dfll_is_running - is the DFLL currently generating a clock? + * @td: DFLL instance + * + * If the DFLL is currently generating an output clock signal, return + * true; otherwise return false. + */ +static bool dfll_is_running(struct tegra_dfll *td) +{ + return td->mode >= DFLL_OPEN_LOOP; +} + +/* + * Runtime PM suspend/resume callbacks + */ + +/** + * tegra_dfll_runtime_resume - enable all clocks needed by the DFLL + * @dev: DFLL device * + * + * Enable all clocks needed by the DFLL. Assumes that clk_prepare() + * has already been called on all the clocks. + * + * XXX Should also handle context restore when returning from off. + */ +int tegra_dfll_runtime_resume(struct device *dev) +{ + struct tegra_dfll *td = dev_get_drvdata(dev); + int ret; + + ret = clk_enable(td->ref_clk); + if (ret) { + dev_err(dev, "could not enable ref clock: %d\n", ret); + return ret; + } + + ret = clk_enable(td->soc_clk); + if (ret) { + dev_err(dev, "could not enable register clock: %d\n", ret); + clk_disable(td->ref_clk); + return ret; + } + + ret = clk_enable(td->i2c_clk); + if (ret) { + dev_err(dev, "could not enable i2c clock: %d\n", ret); + clk_disable(td->soc_clk); + clk_disable(td->ref_clk); + return ret; + } + + return 0; +} +EXPORT_SYMBOL(tegra_dfll_runtime_resume); + +/** + * tegra_dfll_runtime_suspend - disable all clocks needed by the DFLL + * @dev: DFLL device * + * + * Disable all clocks needed by the DFLL. Assumes that other code + * will later call clk_unprepare(). + */ +int tegra_dfll_runtime_suspend(struct device *dev) +{ + struct tegra_dfll *td = dev_get_drvdata(dev); + + clk_disable(td->ref_clk); + clk_disable(td->soc_clk); + clk_disable(td->i2c_clk); + + return 0; +} +EXPORT_SYMBOL(tegra_dfll_runtime_suspend); + +/* + * DFLL tuning operations (per-voltage-range tuning settings) + */ + +/** + * dfll_tune_low - tune to DFLL and CPU settings valid for any voltage + * @td: DFLL instance + * + * Tune the DFLL oscillator parameters and the CPU clock shaper for + * the low-voltage range. These settings are valid for any voltage, + * but may not be optimal. + */ +static void dfll_tune_low(struct tegra_dfll *td) +{ + td->tune_range = DFLL_TUNE_LOW; + + dfll_writel(td, td->soc->tune0_low, DFLL_TUNE0); + dfll_writel(td, td->soc->tune1, DFLL_TUNE1); + dfll_wmb(td); + + if (td->soc->set_clock_trimmers_low) + td->soc->set_clock_trimmers_low(); +} + +/* + * Output clock scaler helpers + */ + +/** + * dfll_scale_dvco_rate - calculate scaled rate from the DVCO rate + * @scale_bits: clock scaler value (bits in the DFLL_FREQ_REQ_SCALE field) + * @dvco_rate: the DVCO rate + * + * Apply the same scaling formula that the DFLL hardware uses to scale + * the DVCO rate. + */ +static unsigned long dfll_scale_dvco_rate(int scale_bits, + unsigned long dvco_rate) +{ + return (u64)dvco_rate * (scale_bits + 1) / DFLL_FREQ_REQ_SCALE_MAX; +} + +/* + * Monitor control + */ + +/** + * dfll_calc_monitored_rate - convert DFLL_MONITOR_DATA_VAL rate into real freq + * @monitor_data: value read from the DFLL_MONITOR_DATA_VAL bitfield + * @ref_rate: DFLL reference clock rate + * + * Convert @monitor_data from DFLL_MONITOR_DATA_VAL units into cycles + * per second. Returns the converted value. + */ +static u64 dfll_calc_monitored_rate(u32 monitor_data, + unsigned long ref_rate) +{ + return monitor_data * (ref_rate / REF_CLK_CYC_PER_DVCO_SAMPLE); +} + +/** + * dfll_read_monitor_rate - return the DFLL's output rate from internal monitor + * @td: DFLL instance + * + * If the DFLL is enabled, return the last rate reported by the DFLL's + * internal monitoring hardware. This works in both open-loop and + * closed-loop mode, and takes the output scaler setting into account. + * Assumes that the monitor was programmed to monitor frequency before + * the sample period started. If the driver believes that the DFLL is + * currently uninitialized or disabled, it will return 0, since + * otherwise the DFLL monitor data register will return the last + * measured rate from when the DFLL was active. + */ +static u64 dfll_read_monitor_rate(struct tegra_dfll *td) +{ + u32 v, s; + u64 pre_scaler_rate, post_scaler_rate; + + if (!dfll_is_running(td)) + return 0; + + v = dfll_readl(td, DFLL_MONITOR_DATA); + v = (v & DFLL_MONITOR_DATA_VAL_MASK) >> DFLL_MONITOR_DATA_VAL_SHIFT; + pre_scaler_rate = dfll_calc_monitored_rate(v, td->ref_rate); + + s = dfll_readl(td, DFLL_FREQ_REQ); + s = (s & DFLL_FREQ_REQ_SCALE_MASK) >> DFLL_FREQ_REQ_SCALE_SHIFT; + post_scaler_rate = dfll_scale_dvco_rate(s, pre_scaler_rate); + + return post_scaler_rate; +} + +/* + * DFLL mode switching + */ + +/** + * dfll_set_mode - change the DFLL control mode + * @td: DFLL instance + * @mode: DFLL control mode (see enum dfll_ctrl_mode) + * + * Change the DFLL's operating mode between disabled, open-loop mode, + * and closed-loop mode, or vice versa. + */ +static void dfll_set_mode(struct tegra_dfll *td, + enum dfll_ctrl_mode mode) +{ + td->mode = mode; + dfll_writel(td, mode - 1, DFLL_CTRL); + dfll_wmb(td); +} + +/* + * DFLL-to-I2C controller interface + */ + +/** + * dfll_i2c_set_output_enabled - enable/disable I2C PMIC voltage requests + * @td: DFLL instance + * @enable: whether to enable or disable the I2C voltage requests + * + * Set the master enable control for I2C control value updates. If disabled, + * then I2C control messages are inhibited, regardless of the DFLL mode. + */ +static int dfll_i2c_set_output_enabled(struct tegra_dfll *td, bool enable) +{ + u32 val; + + val = dfll_i2c_readl(td, DFLL_OUTPUT_CFG); + + if (enable) + val |= DFLL_OUTPUT_CFG_I2C_ENABLE; + else + val &= ~DFLL_OUTPUT_CFG_I2C_ENABLE; + + dfll_i2c_writel(td, val, DFLL_OUTPUT_CFG); + dfll_i2c_wmb(td); + + return 0; +} + +/** + * dfll_load_lut - load the voltage lookup table + * @td: struct tegra_dfll * + * + * Load the voltage-to-PMIC register value lookup table into the DFLL + * IP block memory. Look-up tables can be loaded at any time. + */ +static void dfll_load_i2c_lut(struct tegra_dfll *td) +{ + int i, lut_index; + u32 val; + + for (i = 0; i < MAX_DFLL_VOLTAGES; i++) { + if (i < td->lut_min) + lut_index = td->lut_min; + else if (i > td->lut_max) + lut_index = td->lut_max; + else + lut_index = i; + + val = regulator_list_hardware_vsel(td->vdd_reg, + td->i2c_lut[lut_index]); + __raw_writel(val, td->lut_base + i * 4); + } + + dfll_i2c_wmb(td); +} + +/** + * dfll_init_i2c_if - set up the DFLL's DFLL-I2C interface + * @td: DFLL instance + * + * During DFLL driver initialization, program the DFLL-I2C interface + * with the PMU slave address, vdd register offset, and transfer mode. + * This data is used by the DFLL to automatically construct I2C + * voltage-set commands, which are then passed to the DFLL's internal + * I2C controller. + */ +static void dfll_init_i2c_if(struct tegra_dfll *td) +{ + u32 val; + + if (td->i2c_slave_addr > 0x7f) { + val = td->i2c_slave_addr << DFLL_I2C_CFG_SLAVE_ADDR_SHIFT_10BIT; + val |= DFLL_I2C_CFG_SLAVE_ADDR_10; + } else { + val = td->i2c_slave_addr << DFLL_I2C_CFG_SLAVE_ADDR_SHIFT_7BIT; + } + val |= DFLL_I2C_CFG_SIZE_MASK; + val |= DFLL_I2C_CFG_ARB_ENABLE; + dfll_i2c_writel(td, val, DFLL_I2C_CFG); + + dfll_i2c_writel(td, td->i2c_reg, DFLL_I2C_VDD_REG_ADDR); + + val = DIV_ROUND_UP(td->i2c_clk_rate, td->i2c_fs_rate * 8); + BUG_ON(!val || (val > DFLL_I2C_CLK_DIVISOR_MASK)); + val = (val - 1) << DFLL_I2C_CLK_DIVISOR_FS_SHIFT; + + /* default hs divisor just in case */ + val |= 1 << DFLL_I2C_CLK_DIVISOR_HS_SHIFT; + __raw_writel(val, td->i2c_controller_base + DFLL_I2C_CLK_DIVISOR); + dfll_i2c_wmb(td); +} + +/** + * dfll_init_out_if - prepare DFLL-to-PMIC interface + * @td: DFLL instance + * + * During DFLL driver initialization or resume from context loss, + * disable the I2C command output to the PMIC, set safe voltage and + * output limits, and disable and clear limit interrupts. + */ +static void dfll_init_out_if(struct tegra_dfll *td) +{ + u32 val; + + td->lut_min = 0; + td->lut_max = td->i2c_lut_size - 1; + td->lut_safe = td->lut_min + 1; + + dfll_i2c_writel(td, 0, DFLL_OUTPUT_CFG); + val = (td->lut_safe << DFLL_OUTPUT_CFG_SAFE_SHIFT) | + (td->lut_max << DFLL_OUTPUT_CFG_MAX_SHIFT) | + (td->lut_min << DFLL_OUTPUT_CFG_MIN_SHIFT); + dfll_i2c_writel(td, val, DFLL_OUTPUT_CFG); + dfll_i2c_wmb(td); + + dfll_writel(td, 0, DFLL_OUTPUT_FORCE); + dfll_i2c_writel(td, 0, DFLL_INTR_EN); + dfll_i2c_writel(td, DFLL_INTR_MAX_MASK | DFLL_INTR_MIN_MASK, + DFLL_INTR_STS); + + dfll_load_i2c_lut(td); + dfll_init_i2c_if(td); +} + +/* + * Set/get the DFLL's targeted output clock rate + */ + +/** + * find_lut_index_for_rate - determine I2C LUT index for given DFLL rate + * @td: DFLL instance + * @rate: clock rate + * + * Determines the index of a I2C LUT entry for a voltage that approximately + * produces the given DFLL clock rate. This is used when forcing a value + * to the integrator during rate changes. Returns -ENOENT if a suitable + * LUT index is not found. + */ +static int find_lut_index_for_rate(struct tegra_dfll *td, unsigned long rate) +{ + struct dev_pm_opp *opp; + int i, uv; + + opp = dev_pm_opp_find_freq_ceil(td->soc->dev, &rate); + if (IS_ERR(opp)) + return PTR_ERR(opp); + uv = dev_pm_opp_get_voltage(opp); + + for (i = 0; i < td->i2c_lut_size; i++) { + if (regulator_list_voltage(td->vdd_reg, td->i2c_lut[i]) == uv) + return i; + } + + return -ENOENT; +} + +/** + * dfll_calculate_rate_request - calculate DFLL parameters for a given rate + * @td: DFLL instance + * @req: DFLL-rate-request structure + * @rate: the desired DFLL rate + * + * Populate the DFLL-rate-request record @req fields with the scale_bits + * and mult_bits fields, based on the target input rate. Returns 0 upon + * success, or -EINVAL if the requested rate in req->rate is too high + * or low for the DFLL to generate. + */ +static int dfll_calculate_rate_request(struct tegra_dfll *td, + struct dfll_rate_req *req, + unsigned long rate) +{ + u32 val; + + /* + * If requested rate is below the minimum DVCO rate, active the scaler. + * In the future the DVCO minimum voltage should be selected based on + * chip temperature and the actual minimum rate should be calibrated + * at runtime. + */ + req->scale_bits = DFLL_FREQ_REQ_SCALE_MAX - 1; + if (rate < td->dvco_rate_min) { + int scale; + + scale = DIV_ROUND_CLOSEST(rate / 1000 * DFLL_FREQ_REQ_SCALE_MAX, + td->dvco_rate_min / 1000); + if (!scale) { + dev_err(td->dev, "%s: Rate %lu is too low\n", + __func__, rate); + return -EINVAL; + } + req->scale_bits = scale - 1; + rate = td->dvco_rate_min; + } + + /* Convert requested rate into frequency request and scale settings */ + val = DVCO_RATE_TO_MULT(rate, td->ref_rate); + if (val > FREQ_MAX) { + dev_err(td->dev, "%s: Rate %lu is above dfll range\n", + __func__, rate); + return -EINVAL; + } + req->mult_bits = val; + req->dvco_target_rate = MULT_TO_DVCO_RATE(req->mult_bits, td->ref_rate); + req->rate = dfll_scale_dvco_rate(req->scale_bits, + req->dvco_target_rate); + req->lut_index = find_lut_index_for_rate(td, req->dvco_target_rate); + if (req->lut_index < 0) + return req->lut_index; + + return 0; +} + +/** + * dfll_set_frequency_request - start the frequency change operation + * @td: DFLL instance + * @req: rate request structure + * + * Tell the DFLL to try to change its output frequency to the + * frequency represented by @req. DFLL must be in closed-loop mode. + */ +static void dfll_set_frequency_request(struct tegra_dfll *td, + struct dfll_rate_req *req) +{ + u32 val = 0; + int force_val; + int coef = 128; /* FIXME: td->cg_scale? */; + + force_val = (req->lut_index - td->lut_safe) * coef / td->cg; + force_val = clamp(force_val, FORCE_MIN, FORCE_MAX); + + val |= req->mult_bits << DFLL_FREQ_REQ_MULT_SHIFT; + val |= req->scale_bits << DFLL_FREQ_REQ_SCALE_SHIFT; + val |= ((u32)force_val << DFLL_FREQ_REQ_FORCE_SHIFT) & + DFLL_FREQ_REQ_FORCE_MASK; + val |= DFLL_FREQ_REQ_FREQ_VALID | DFLL_FREQ_REQ_FORCE_ENABLE; + + dfll_writel(td, val, DFLL_FREQ_REQ); + dfll_wmb(td); +} + +/** + * tegra_dfll_request_rate - set the next rate for the DFLL to tune to + * @td: DFLL instance + * @rate: clock rate to target + * + * Convert the requested clock rate @rate into the DFLL control logic + * settings. In closed-loop mode, update new settings immediately to + * adjust DFLL output rate accordingly. Otherwise, just save them + * until the next switch to closed loop. Returns 0 upon success, + * -EPERM if the DFLL driver has not yet been initialized, or -EINVAL + * if @rate is outside the DFLL's tunable range. + */ +static int dfll_request_rate(struct tegra_dfll *td, unsigned long rate) +{ + int ret; + struct dfll_rate_req req; + + if (td->mode == DFLL_UNINITIALIZED) { + dev_err(td->dev, "%s: Cannot set DFLL rate in %s mode\n", + __func__, mode_name[td->mode]); + return -EPERM; + } + + ret = dfll_calculate_rate_request(td, &req, rate); + if (ret) + return ret; + + td->last_unrounded_rate = rate; + td->last_req = req; + + if (td->mode == DFLL_CLOSED_LOOP) + dfll_set_frequency_request(td, &td->last_req); + + return 0; +} + +/* + * DFLL enable/disable & open-loop <-> closed-loop transitions + */ + +/** + * dfll_disable - switch from open-loop mode to disabled mode + * @td: DFLL instance + * + * Switch from OPEN_LOOP state to DISABLED state. Returns 0 upon success + * or -EPERM if the DFLL is not currently in open-loop mode. + */ +static int dfll_disable(struct tegra_dfll *td) +{ + if (td->mode != DFLL_OPEN_LOOP) { + dev_err(td->dev, "cannot disable DFLL in %s mode\n", + mode_name[td->mode]); + return -EINVAL; + } + + dfll_set_mode(td, DFLL_DISABLED); + pm_runtime_put_sync(td->dev); + + return 0; +} + +/** + * dfll_enable - switch a disabled DFLL to open-loop mode + * @td: DFLL instance + * + * Switch from DISABLED state to OPEN_LOOP state. Returns 0 upon success + * or -EPERM if the DFLL is not currently disabled. + */ +static int dfll_enable(struct tegra_dfll *td) +{ + if (td->mode != DFLL_DISABLED) { + dev_err(td->dev, "cannot enable DFLL in %s mode\n", + mode_name[td->mode]); + return -EPERM; + } + + pm_runtime_get_sync(td->dev); + dfll_set_mode(td, DFLL_OPEN_LOOP); + + return 0; +} + +/** + * dfll_set_open_loop_config - prepare to switch to open-loop mode + * @td: DFLL instance + * + * Prepare to switch the DFLL to open-loop mode. This switches the + * DFLL to the low-voltage tuning range, ensures that I2C output + * forcing is disabled, and disables the output clock rate scaler. + * The DFLL's low-voltage tuning range parameters must be + * characterized to keep the downstream device stable at any DVCO + * input voltage. No return value. + */ +static void dfll_set_open_loop_config(struct tegra_dfll *td) +{ + u32 val; + + /* always tune low (safe) in open loop */ + if (td->tune_range != DFLL_TUNE_LOW) + dfll_tune_low(td); + + val = dfll_readl(td, DFLL_FREQ_REQ); + val |= DFLL_FREQ_REQ_SCALE_MASK; + val &= ~DFLL_FREQ_REQ_FORCE_ENABLE; + dfll_writel(td, val, DFLL_FREQ_REQ); + dfll_wmb(td); +} + +/** + * tegra_dfll_lock - switch from open-loop to closed-loop mode + * @td: DFLL instance + * + * Switch from OPEN_LOOP state to CLOSED_LOOP state. Returns 0 upon success, + * -EINVAL if the DFLL's target rate hasn't been set yet, or -EPERM if the + * DFLL is not currently in open-loop mode. + */ +static int dfll_lock(struct tegra_dfll *td) +{ + struct dfll_rate_req *req = &td->last_req; + + switch (td->mode) { + case DFLL_CLOSED_LOOP: + return 0; + + case DFLL_OPEN_LOOP: + if (req->rate == 0) { + dev_err(td->dev, "%s: Cannot lock DFLL at rate 0\n", + __func__); + return -EINVAL; + } + + dfll_i2c_set_output_enabled(td, true); + dfll_set_mode(td, DFLL_CLOSED_LOOP); + dfll_set_frequency_request(td, req); + return 0; + + default: + BUG_ON(td->mode > DFLL_CLOSED_LOOP); + dev_err(td->dev, "%s: Cannot lock DFLL in %s mode\n", + __func__, mode_name[td->mode]); + return -EPERM; + } +} + +/** + * tegra_dfll_unlock - switch from closed-loop to open-loop mode + * @td: DFLL instance + * + * Switch from CLOSED_LOOP state to OPEN_LOOP state. Returns 0 upon success, + * or -EPERM if the DFLL is not currently in open-loop mode. + */ +static int dfll_unlock(struct tegra_dfll *td) +{ + switch (td->mode) { + case DFLL_CLOSED_LOOP: + dfll_set_open_loop_config(td); + dfll_set_mode(td, DFLL_OPEN_LOOP); + dfll_i2c_set_output_enabled(td, false); + return 0; + + case DFLL_OPEN_LOOP: + return 0; + + default: + BUG_ON(td->mode > DFLL_CLOSED_LOOP); + dev_err(td->dev, "%s: Cannot unlock DFLL in %s mode\n", + __func__, mode_name[td->mode]); + return -EPERM; + } +} + +/* + * Clock framework integration + * + * When the DFLL is being controlled by the CCF, always enter closed loop + * mode when the clk is enabled. This requires that a DFLL rate request + * has been set beforehand, which implies that a clk_set_rate() call is + * always required before a clk_enable(). + */ + +static int dfll_clk_is_enabled(struct clk_hw *hw) +{ + struct tegra_dfll *td = clk_hw_to_dfll(hw); + + return dfll_is_running(td); +} + +static int dfll_clk_enable(struct clk_hw *hw) +{ + struct tegra_dfll *td = clk_hw_to_dfll(hw); + int ret; + + ret = dfll_enable(td); + if (ret) + return ret; + + ret = dfll_lock(td); + if (ret) + dfll_disable(td); + + return ret; +} + +static void dfll_clk_disable(struct clk_hw *hw) +{ + struct tegra_dfll *td = clk_hw_to_dfll(hw); + int ret; + + ret = dfll_unlock(td); + if (!ret) + dfll_disable(td); +} + +static unsigned long dfll_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct tegra_dfll *td = clk_hw_to_dfll(hw); + + return td->last_unrounded_rate; +} + +static long dfll_clk_round_rate(struct clk_hw *hw, + unsigned long rate, + unsigned long *parent_rate) +{ + struct tegra_dfll *td = clk_hw_to_dfll(hw); + struct dfll_rate_req req; + int ret; + + ret = dfll_calculate_rate_request(td, &req, rate); + if (ret) + return ret; + + /* + * Don't return the rounded rate, since it doesn't really matter as + * the output rate will be voltage controlled anyway, and cpufreq + * freaks out if any rounding happens. + */ + return rate; +} + +static int dfll_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct tegra_dfll *td = clk_hw_to_dfll(hw); + + return dfll_request_rate(td, rate); +} + +static const struct clk_ops dfll_clk_ops = { + .is_enabled = dfll_clk_is_enabled, + .enable = dfll_clk_enable, + .disable = dfll_clk_disable, + .recalc_rate = dfll_clk_recalc_rate, + .round_rate = dfll_clk_round_rate, + .set_rate = dfll_clk_set_rate, +}; + +static struct clk_init_data dfll_clk_init_data = { + .flags = CLK_IS_ROOT, + .ops = &dfll_clk_ops, + .num_parents = 0, +}; + +/** + * dfll_register_clk - register the DFLL output clock with the clock framework + * @td: DFLL instance + * + * Register the DFLL's output clock with the Linux clock framework and register + * the DFLL driver as an OF clock provider. Returns 0 upon success or -EINVAL + * or -ENOMEM upon failure. + */ +static int dfll_register_clk(struct tegra_dfll *td) +{ + int ret; + + dfll_clk_init_data.name = td->output_clock_name; + td->dfll_clk_hw.init = &dfll_clk_init_data; + + td->dfll_clk = clk_register(td->dev, &td->dfll_clk_hw); + if (IS_ERR(td->dfll_clk)) { + dev_err(td->dev, "DFLL clock registration error\n"); + return -EINVAL; + } + + ret = of_clk_add_provider(td->dev->of_node, of_clk_src_simple_get, + td->dfll_clk); + if (ret) { + dev_err(td->dev, "of_clk_add_provider() failed\n"); + + clk_unregister(td->dfll_clk); + return ret; + } + + return 0; +} + +/** + * dfll_unregister_clk - unregister the DFLL output clock + * @td: DFLL instance + * + * Unregister the DFLL's output clock from the Linux clock framework + * and from clkdev. No return value. + */ +static void dfll_unregister_clk(struct tegra_dfll *td) +{ + of_clk_del_provider(td->dev->of_node); + clk_unregister(td->dfll_clk); + td->dfll_clk = NULL; +} + +/* + * Debugfs interface + */ + +#ifdef CONFIG_DEBUG_FS + +static int attr_enable_get(void *data, u64 *val) +{ + struct tegra_dfll *td = data; + + *val = dfll_is_running(td); + + return 0; +} +static int attr_enable_set(void *data, u64 val) +{ + struct tegra_dfll *td = data; + + return val ? dfll_enable(td) : dfll_disable(td); +} +DEFINE_SIMPLE_ATTRIBUTE(enable_fops, attr_enable_get, attr_enable_set, + "%llu\n"); + +static int attr_lock_get(void *data, u64 *val) +{ + struct tegra_dfll *td = data; + + *val = (td->mode == DFLL_CLOSED_LOOP); + + return 0; +} +static int attr_lock_set(void *data, u64 val) +{ + struct tegra_dfll *td = data; + + return val ? dfll_lock(td) : dfll_unlock(td); +} +DEFINE_SIMPLE_ATTRIBUTE(lock_fops, attr_lock_get, attr_lock_set, + "%llu\n"); + +static int attr_rate_get(void *data, u64 *val) +{ + struct tegra_dfll *td = data; + + *val = dfll_read_monitor_rate(td); + + return 0; +} + +static int attr_rate_set(void *data, u64 val) +{ + struct tegra_dfll *td = data; + + return dfll_request_rate(td, val); +} +DEFINE_SIMPLE_ATTRIBUTE(rate_fops, attr_rate_get, attr_rate_set, "%llu\n"); + +static int attr_registers_show(struct seq_file *s, void *data) +{ + u32 val, offs; + struct tegra_dfll *td = s->private; + + seq_puts(s, "CONTROL REGISTERS:\n"); + for (offs = 0; offs <= DFLL_MONITOR_DATA; offs += 4) { + if (offs == DFLL_OUTPUT_CFG) + val = dfll_i2c_readl(td, offs); + else + val = dfll_readl(td, offs); + seq_printf(s, "[0x%02x] = 0x%08x\n", offs, val); + } + + seq_puts(s, "\nI2C and INTR REGISTERS:\n"); + for (offs = DFLL_I2C_CFG; offs <= DFLL_I2C_STS; offs += 4) + seq_printf(s, "[0x%02x] = 0x%08x\n", offs, + dfll_i2c_readl(td, offs)); + for (offs = DFLL_INTR_STS; offs <= DFLL_INTR_EN; offs += 4) + seq_printf(s, "[0x%02x] = 0x%08x\n", offs, + dfll_i2c_readl(td, offs)); + + seq_puts(s, "\nINTEGRATED I2C CONTROLLER REGISTERS:\n"); + offs = DFLL_I2C_CLK_DIVISOR; + seq_printf(s, "[0x%02x] = 0x%08x\n", offs, + __raw_readl(td->i2c_controller_base + offs)); + + seq_puts(s, "\nLUT:\n"); + for (offs = 0; offs < 4 * MAX_DFLL_VOLTAGES; offs += 4) + seq_printf(s, "[0x%02x] = 0x%08x\n", offs, + __raw_readl(td->lut_base + offs)); + + return 0; +} + +static int attr_registers_open(struct inode *inode, struct file *file) +{ + return single_open(file, attr_registers_show, inode->i_private); +} + +static const struct file_operations attr_registers_fops = { + .open = attr_registers_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static int dfll_debug_init(struct tegra_dfll *td) +{ + int ret; + + if (!td || (td->mode == DFLL_UNINITIALIZED)) + return 0; + + td->debugfs_dir = debugfs_create_dir("tegra_dfll_fcpu", NULL); + if (!td->debugfs_dir) + return -ENOMEM; + + ret = -ENOMEM; + + if (!debugfs_create_file("enable", S_IRUGO | S_IWUSR, + td->debugfs_dir, td, &enable_fops)) + goto err_out; + + if (!debugfs_create_file("lock", S_IRUGO, + td->debugfs_dir, td, &lock_fops)) + goto err_out; + + if (!debugfs_create_file("rate", S_IRUGO, + td->debugfs_dir, td, &rate_fops)) + goto err_out; + + if (!debugfs_create_file("registers", S_IRUGO, + td->debugfs_dir, td, &attr_registers_fops)) + goto err_out; + + return 0; + +err_out: + debugfs_remove_recursive(td->debugfs_dir); + return ret; +} + +#endif /* CONFIG_DEBUG_FS */ + +/* + * DFLL initialization + */ + +/** + * dfll_set_default_params - program non-output related DFLL parameters + * @td: DFLL instance + * + * During DFLL driver initialization or resume from context loss, + * program parameters for the closed loop integrator, DVCO tuning, + * voltage droop control and monitor control. + */ +static void dfll_set_default_params(struct tegra_dfll *td) +{ + u32 val; + + val = DIV_ROUND_UP(td->ref_rate, td->sample_rate * 32); + BUG_ON(val > DFLL_CONFIG_DIV_MASK); + dfll_writel(td, val, DFLL_CONFIG); + + val = (td->force_mode << DFLL_PARAMS_FORCE_MODE_SHIFT) | + (td->cf << DFLL_PARAMS_CF_PARAM_SHIFT) | + (td->ci << DFLL_PARAMS_CI_PARAM_SHIFT) | + (td->cg << DFLL_PARAMS_CG_PARAM_SHIFT) | + (td->cg_scale ? DFLL_PARAMS_CG_SCALE : 0); + dfll_writel(td, val, DFLL_PARAMS); + + dfll_tune_low(td); + dfll_writel(td, td->droop_ctrl, DFLL_DROOP_CTRL); + dfll_writel(td, DFLL_MONITOR_CTRL_FREQ, DFLL_MONITOR_CTRL); +} + +/** + * dfll_init_clks - clk_get() the DFLL source clocks + * @td: DFLL instance + * + * Call clk_get() on the DFLL source clocks and save the pointers for later + * use. Returns 0 upon success or error (see devm_clk_get) if one or more + * of the clocks couldn't be looked up. + */ +static int dfll_init_clks(struct tegra_dfll *td) +{ + td->ref_clk = devm_clk_get(td->dev, "ref"); + if (IS_ERR(td->ref_clk)) { + dev_err(td->dev, "missing ref clock\n"); + return PTR_ERR(td->ref_clk); + } + + td->soc_clk = devm_clk_get(td->dev, "soc"); + if (IS_ERR(td->soc_clk)) { + dev_err(td->dev, "missing soc clock\n"); + return PTR_ERR(td->soc_clk); + } + + td->i2c_clk = devm_clk_get(td->dev, "i2c"); + if (IS_ERR(td->i2c_clk)) { + dev_err(td->dev, "missing i2c clock\n"); + return PTR_ERR(td->i2c_clk); + } + td->i2c_clk_rate = clk_get_rate(td->i2c_clk); + + return 0; +} + +/** + * dfll_init - Prepare the DFLL IP block for use + * @td: DFLL instance + * + * Do everything necessary to prepare the DFLL IP block for use. The + * DFLL will be left in DISABLED state. Called by dfll_probe(). + * Returns 0 upon success, or passes along the error from whatever + * function returned it. + */ +static int dfll_init(struct tegra_dfll *td) +{ + int ret; + + td->ref_rate = clk_get_rate(td->ref_clk); + if (td->ref_rate != REF_CLOCK_RATE) { + dev_err(td->dev, "unexpected ref clk rate %lu, expecting %lu", + td->ref_rate, REF_CLOCK_RATE); + return -EINVAL; + } + + reset_control_deassert(td->dvco_rst); + + ret = clk_prepare(td->ref_clk); + if (ret) { + dev_err(td->dev, "failed to prepare ref_clk\n"); + return ret; + } + + ret = clk_prepare(td->soc_clk); + if (ret) { + dev_err(td->dev, "failed to prepare soc_clk\n"); + goto di_err1; + } + + ret = clk_prepare(td->i2c_clk); + if (ret) { + dev_err(td->dev, "failed to prepare i2c_clk\n"); + goto di_err2; + } + + td->last_unrounded_rate = 0; + + pm_runtime_enable(td->dev); + pm_runtime_get_sync(td->dev); + + dfll_set_mode(td, DFLL_DISABLED); + dfll_set_default_params(td); + + if (td->soc->init_clock_trimmers) + td->soc->init_clock_trimmers(); + + dfll_set_open_loop_config(td); + + dfll_init_out_if(td); + + pm_runtime_put_sync(td->dev); + + return 0; + +di_err2: + clk_unprepare(td->soc_clk); +di_err1: + clk_unprepare(td->ref_clk); + + reset_control_assert(td->dvco_rst); + + return ret; +} + +/* + * DT data fetch + */ + +/* + * Find a PMIC voltage register-to-voltage mapping for the given voltage. + * An exact voltage match is required. + */ +static int find_vdd_map_entry_exact(struct tegra_dfll *td, int uV) +{ + int i, n_voltages, reg_uV; + + n_voltages = regulator_count_voltages(td->vdd_reg); + for (i = 0; i < n_voltages; i++) { + reg_uV = regulator_list_voltage(td->vdd_reg, i); + if (reg_uV < 0) + break; + + if (uV == reg_uV) + return i; + } + + dev_err(td->dev, "no voltage map entry for %d uV\n", uV); + return -EINVAL; +} + +/* + * Find a PMIC voltage register-to-voltage mapping for the given voltage, + * rounding up to the closest supported voltage. + * */ +static int find_vdd_map_entry_min(struct tegra_dfll *td, int uV) +{ + int i, n_voltages, reg_uV; + + n_voltages = regulator_count_voltages(td->vdd_reg); + for (i = 0; i < n_voltages; i++) { + reg_uV = regulator_list_voltage(td->vdd_reg, i); + if (reg_uV < 0) + break; + + if (uV <= reg_uV) + return i; + } + + dev_err(td->dev, "no voltage map entry rounding to %d uV\n", uV); + return -EINVAL; +} + +/** + * dfll_build_i2c_lut - build the I2C voltage register lookup table + * @td: DFLL instance + * + * The DFLL hardware has 33 bytes of look-up table RAM that must be filled with + * PMIC voltage register values that span the entire DFLL operating range. + * This function builds the look-up table based on the OPP table provided by + * the soc-specific platform driver (td->soc->opp_dev) and the PMIC + * register-to-voltage mapping queried from the regulator framework. + * + * On success, fills in td->i2c_lut and returns 0, or -err on failure. + */ +static int dfll_build_i2c_lut(struct tegra_dfll *td) +{ + int ret = -EINVAL; + int j, v, v_max, v_opp; + int selector; + unsigned long rate; + struct dev_pm_opp *opp; + int lut; + + rcu_read_lock(); + + rate = ULONG_MAX; + opp = dev_pm_opp_find_freq_floor(td->soc->dev, &rate); + if (IS_ERR(opp)) { + dev_err(td->dev, "couldn't get vmax opp, empty opp table?\n"); + goto out; + } + v_max = dev_pm_opp_get_voltage(opp); + + v = td->soc->min_millivolts * 1000; + lut = find_vdd_map_entry_exact(td, v); + if (lut < 0) + goto out; + td->i2c_lut[0] = lut; + + for (j = 1, rate = 0; ; rate++) { + opp = dev_pm_opp_find_freq_ceil(td->soc->dev, &rate); + if (IS_ERR(opp)) + break; + v_opp = dev_pm_opp_get_voltage(opp); + + if (v_opp <= td->soc->min_millivolts * 1000) + td->dvco_rate_min = dev_pm_opp_get_freq(opp); + + for (;;) { + v += max(1, (v_max - v) / (MAX_DFLL_VOLTAGES - j)); + if (v >= v_opp) + break; + + selector = find_vdd_map_entry_min(td, v); + if (selector < 0) + goto out; + if (selector != td->i2c_lut[j - 1]) + td->i2c_lut[j++] = selector; + } + + v = (j == MAX_DFLL_VOLTAGES - 1) ? v_max : v_opp; + selector = find_vdd_map_entry_exact(td, v); + if (selector < 0) + goto out; + if (selector != td->i2c_lut[j - 1]) + td->i2c_lut[j++] = selector; + + if (v >= v_max) + break; + } + td->i2c_lut_size = j; + + if (!td->dvco_rate_min) + dev_err(td->dev, "no opp above DFLL minimum voltage %d mV\n", + td->soc->min_millivolts); + else + ret = 0; + +out: + rcu_read_unlock(); + + return ret; +} + +/** + * read_dt_param - helper function for reading required parameters from the DT + * @td: DFLL instance + * @param: DT property name + * @dest: output pointer for the value read + * + * Read a required numeric parameter from the DFLL device node, or complain + * if the property doesn't exist. Returns a boolean indicating success for + * easy chaining of multiple calls to this function. + */ +static bool read_dt_param(struct tegra_dfll *td, const char *param, u32 *dest) +{ + int err = of_property_read_u32(td->dev->of_node, param, dest); + + if (err < 0) { + dev_err(td->dev, "failed to read DT parameter %s: %d\n", + param, err); + return false; + } + + return true; +} + +/** + * dfll_fetch_i2c_params - query PMIC I2C params from DT & regulator subsystem + * @td: DFLL instance + * + * Read all the parameters required for operation in I2C mode. The parameters + * can originate from the device tree or the regulator subsystem. + * Returns 0 on success or -err on failure. + */ +static int dfll_fetch_i2c_params(struct tegra_dfll *td) +{ + struct regmap *regmap; + struct device *i2c_dev; + struct i2c_client *i2c_client; + int vsel_reg, vsel_mask; + int ret; + + if (!read_dt_param(td, "nvidia,i2c-fs-rate", &td->i2c_fs_rate)) + return -EINVAL; + + regmap = regulator_get_regmap(td->vdd_reg); + i2c_dev = regmap_get_device(regmap); + i2c_client = to_i2c_client(i2c_dev); + + td->i2c_slave_addr = i2c_client->addr; + + ret = regulator_get_hardware_vsel_register(td->vdd_reg, + &vsel_reg, + &vsel_mask); + if (ret < 0) { + dev_err(td->dev, + "regulator unsuitable for DFLL I2C operation\n"); + return -EINVAL; + } + td->i2c_reg = vsel_reg; + + ret = dfll_build_i2c_lut(td); + if (ret) { + dev_err(td->dev, "couldn't build I2C LUT\n"); + return ret; + } + + return 0; +} + +/** + * dfll_fetch_common_params - read DFLL parameters from the device tree + * @td: DFLL instance + * + * Read all the DT parameters that are common to both I2C and PWM operation. + * Returns 0 on success or -EINVAL on any failure. + */ +static int dfll_fetch_common_params(struct tegra_dfll *td) +{ + bool ok = true; + + ok &= read_dt_param(td, "nvidia,droop-ctrl", &td->droop_ctrl); + ok &= read_dt_param(td, "nvidia,sample-rate", &td->sample_rate); + ok &= read_dt_param(td, "nvidia,force-mode", &td->force_mode); + ok &= read_dt_param(td, "nvidia,cf", &td->cf); + ok &= read_dt_param(td, "nvidia,ci", &td->ci); + ok &= read_dt_param(td, "nvidia,cg", &td->cg); + td->cg_scale = of_property_read_bool(td->dev->of_node, + "nvidia,cg-scale"); + + if (of_property_read_string(td->dev->of_node, "clock-output-names", + &td->output_clock_name)) { + dev_err(td->dev, "missing clock-output-names property\n"); + ok = false; + } + + return ok ? 0 : -EINVAL; +} + +/* + * API exported to per-SoC platform drivers + */ + +/** + * tegra_dfll_register - probe a Tegra DFLL device + * @pdev: DFLL platform_device * + * @soc: Per-SoC integration and characterization data for this DFLL instance + * + * Probe and initialize a DFLL device instance. Intended to be called + * by a SoC-specific shim driver that passes in per-SoC integration + * and configuration data via @soc. Returns 0 on success or -err on failure. + */ +int tegra_dfll_register(struct platform_device *pdev, + struct tegra_dfll_soc_data *soc) +{ + struct resource *mem; + struct tegra_dfll *td; + int ret; + + if (!soc) { + dev_err(&pdev->dev, "no tegra_dfll_soc_data provided\n"); + return -EINVAL; + } + + td = devm_kzalloc(&pdev->dev, sizeof(*td), GFP_KERNEL); + if (!td) + return -ENOMEM; + td->dev = &pdev->dev; + platform_set_drvdata(pdev, td); + + td->soc = soc; + + td->vdd_reg = devm_regulator_get(td->dev, "vdd-cpu"); + if (IS_ERR(td->vdd_reg)) { + dev_err(td->dev, "couldn't get vdd_cpu regulator\n"); + return PTR_ERR(td->vdd_reg); + } + + td->dvco_rst = devm_reset_control_get(td->dev, "dvco"); + if (IS_ERR(td->dvco_rst)) { + dev_err(td->dev, "couldn't get dvco reset\n"); + return PTR_ERR(td->dvco_rst); + } + + ret = dfll_fetch_common_params(td); + if (ret) { + dev_err(td->dev, "couldn't parse device tree parameters\n"); + return ret; + } + + ret = dfll_fetch_i2c_params(td); + if (ret) + return ret; + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (!mem) { + dev_err(td->dev, "no control register resource\n"); + return -ENODEV; + } + + td->base = devm_ioremap(td->dev, mem->start, resource_size(mem)); + if (!td->base) { + dev_err(td->dev, "couldn't ioremap DFLL control registers\n"); + return -ENODEV; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 1); + if (!mem) { + dev_err(td->dev, "no i2c_base resource\n"); + return -ENODEV; + } + + td->i2c_base = devm_ioremap(td->dev, mem->start, resource_size(mem)); + if (!td->i2c_base) { + dev_err(td->dev, "couldn't ioremap i2c_base resource\n"); + return -ENODEV; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 2); + if (!mem) { + dev_err(td->dev, "no i2c_controller_base resource\n"); + return -ENODEV; + } + + td->i2c_controller_base = devm_ioremap(td->dev, mem->start, + resource_size(mem)); + if (!td->i2c_controller_base) { + dev_err(td->dev, + "couldn't ioremap i2c_controller_base resource\n"); + return -ENODEV; + } + + mem = platform_get_resource(pdev, IORESOURCE_MEM, 3); + if (!mem) { + dev_err(td->dev, "no lut_base resource\n"); + return -ENODEV; + } + + td->lut_base = devm_ioremap(td->dev, mem->start, resource_size(mem)); + if (!td->lut_base) { + dev_err(td->dev, + "couldn't ioremap lut_base resource\n"); + return -ENODEV; + } + + ret = dfll_init_clks(td); + if (ret) { + dev_err(&pdev->dev, "DFLL clock init error\n"); + return ret; + } + + /* Enable the clocks and set the device up */ + ret = dfll_init(td); + if (ret) + return ret; + + ret = dfll_register_clk(td); + if (ret) { + dev_err(&pdev->dev, "DFLL clk registration failed\n"); + return ret; + } + +#ifdef CONFIG_DEBUG_FS + dfll_debug_init(td); +#endif + + return 0; +} +EXPORT_SYMBOL(tegra_dfll_register); + +/** + * tegra_dfll_unregister - release all of the DFLL driver resources for a device + * @pdev: DFLL platform_device * + * + * Unbind this driver from the DFLL hardware device represented by + * @pdev. The DFLL must be disabled for this to succeed. Returns 0 + * upon success or -EBUSY if the DFLL is still active. + */ +int tegra_dfll_unregister(struct platform_device *pdev) +{ + struct tegra_dfll *td = platform_get_drvdata(pdev); + + /* Try to prevent removal while the DFLL is active */ + if (td->mode != DFLL_DISABLED) { + dev_err(&pdev->dev, + "must disable DFLL before removing driver\n"); + return -EBUSY; + } + + debugfs_remove_recursive(td->debugfs_dir); + + dfll_unregister_clk(td); + pm_runtime_disable(&pdev->dev); + + clk_unprepare(td->ref_clk); + clk_unprepare(td->soc_clk); + clk_unprepare(td->i2c_clk); + + reset_control_assert(td->dvco_rst); + + return 0; +} +EXPORT_SYMBOL(tegra_dfll_unregister); diff --git a/drivers/clk/tegra/clk-dfll.h b/drivers/clk/tegra/clk-dfll.h new file mode 100644 index 000000000000..2e4c0772a5dc --- /dev/null +++ b/drivers/clk/tegra/clk-dfll.h @@ -0,0 +1,54 @@ +/* + * clk-dfll.h - prototypes and macros for the Tegra DFLL clocksource driver + * Copyright (C) 2013 NVIDIA Corporation. All rights reserved. + * + * Aleksandr Frid <afrid@nvidia.com> + * Paul Walmsley <pwalmsley@nvidia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#ifndef __DRIVERS_CLK_TEGRA_CLK_DFLL_H +#define __DRIVERS_CLK_TEGRA_CLK_DFLL_H + +#include <linux/platform_device.h> +#include <linux/reset.h> +#include <linux/types.h> + +/** + * struct tegra_dfll_soc_data - SoC-specific hooks/integration for the DFLL driver + * @opp_dev: struct device * that holds the OPP table for the DFLL + * @min_millivolts: minimum voltage (in mV) that the DFLL can operate + * @tune0_low: DFLL tuning register 0 (low voltage range) + * @tune0_high: DFLL tuning register 0 (high voltage range) + * @tune1: DFLL tuning register 1 + * @assert_dvco_reset: fn ptr to place the DVCO in reset + * @deassert_dvco_reset: fn ptr to release the DVCO reset + * @set_clock_trimmers_high: fn ptr to tune clock trimmers for high voltage + * @set_clock_trimmers_low: fn ptr to tune clock trimmers for low voltage + */ +struct tegra_dfll_soc_data { + struct device *dev; + unsigned int min_millivolts; + u32 tune0_low; + u32 tune0_high; + u32 tune1; + void (*init_clock_trimmers)(void); + void (*set_clock_trimmers_high)(void); + void (*set_clock_trimmers_low)(void); +}; + +int tegra_dfll_register(struct platform_device *pdev, + struct tegra_dfll_soc_data *soc); +int tegra_dfll_unregister(struct platform_device *pdev); +int tegra_dfll_runtime_suspend(struct device *dev); +int tegra_dfll_runtime_resume(struct device *dev); + +#endif /* __DRIVERS_CLK_TEGRA_CLK_DFLL_H */ diff --git a/drivers/clk/tegra/clk-divider.c b/drivers/clk/tegra/clk-divider.c index 59a5714dfe18..48c83efda4cf 100644 --- a/drivers/clk/tegra/clk-divider.c +++ b/drivers/clk/tegra/clk-divider.c @@ -19,7 +19,6 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/clk-provider.h> -#include <linux/clk.h> #include "clk.h" diff --git a/drivers/clk/tegra/clk-emc.c b/drivers/clk/tegra/clk-emc.c index 7649685c86bc..138a94b99b5b 100644 --- a/drivers/clk/tegra/clk-emc.c +++ b/drivers/clk/tegra/clk-emc.c @@ -103,7 +103,7 @@ static unsigned long emc_recalc_rate(struct clk_hw *hw, * CCF wrongly assumes that the parent won't change during set_rate, * so get the parent rate explicitly. */ - parent_rate = __clk_get_rate(__clk_get_parent(hw->clk)); + parent_rate = clk_hw_get_rate(clk_hw_get_parent(hw)); val = readl(tegra->clk_regs + CLK_SOURCE_EMC); div = val & CLK_SOURCE_EMC_EMC_2X_CLK_DIVISOR_MASK; @@ -116,11 +116,7 @@ static unsigned long emc_recalc_rate(struct clk_hw *hw, * safer since things have EMC rate floors. Also don't touch parent_rate * since we don't want the CCF to play with our parent clocks. */ -static long emc_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_hw) +static int emc_determine_rate(struct clk_hw *hw, struct clk_rate_request *req) { struct tegra_clk_emc *tegra; u8 ram_code = tegra_read_ram_code(); @@ -135,22 +131,28 @@ static long emc_determine_rate(struct clk_hw *hw, unsigned long rate, timing = tegra->timings + i; - if (timing->rate > max_rate) { + if (timing->rate > req->max_rate) { i = min(i, 1); - return tegra->timings[i - 1].rate; + req->rate = tegra->timings[i - 1].rate; + return 0; } - if (timing->rate < min_rate) + if (timing->rate < req->min_rate) continue; - if (timing->rate >= rate) - return timing->rate; + if (timing->rate >= req->rate) { + req->rate = timing->rate; + return 0; + } } - if (timing) - return timing->rate; + if (timing) { + req->rate = timing->rate; + return 0; + } - return __clk_get_rate(hw->clk); + req->rate = clk_hw_get_rate(hw); + return 0; } static u8 emc_get_parent(struct clk_hw *hw) @@ -312,7 +314,7 @@ static int emc_set_rate(struct clk_hw *hw, unsigned long rate, tegra = container_of(hw, struct tegra_clk_emc, hw); - if (__clk_get_rate(hw->clk) == rate) + if (clk_hw_get_rate(hw) == rate) return 0; /* @@ -525,8 +527,8 @@ struct clk *tegra_clk_register_emc(void __iomem *base, struct device_node *np, if (IS_ERR(clk)) return clk; - tegra->prev_parent = clk_get_parent_by_index( - tegra->hw.clk, emc_get_parent(&tegra->hw)); + tegra->prev_parent = clk_hw_get_parent_by_index( + &tegra->hw, emc_get_parent(&tegra->hw))->clk; tegra->changing_timing = false; /* Allow debugging tools to see the EMC clock */ diff --git a/drivers/clk/tegra/clk-periph-gate.c b/drivers/clk/tegra/clk-periph-gate.c index 0aa8830ae7cc..d28d6e95020f 100644 --- a/drivers/clk/tegra/clk-periph-gate.c +++ b/drivers/clk/tegra/clk-periph-gate.c @@ -14,7 +14,6 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/slab.h> #include <linux/io.h> diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c index d84ae49d0e05..ec5b6113b012 100644 --- a/drivers/clk/tegra/clk-periph.c +++ b/drivers/clk/tegra/clk-periph.c @@ -14,7 +14,6 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/export.h> #include <linux/slab.h> diff --git a/drivers/clk/tegra/clk-pll-out.c b/drivers/clk/tegra/clk-pll-out.c index 3598987a451d..257cae0c1488 100644 --- a/drivers/clk/tegra/clk-pll-out.c +++ b/drivers/clk/tegra/clk-pll-out.c @@ -20,7 +20,6 @@ #include <linux/delay.h> #include <linux/slab.h> #include <linux/clk-provider.h> -#include <linux/clk.h> #include "clk.h" diff --git a/drivers/clk/tegra/clk-pll.c b/drivers/clk/tegra/clk-pll.c index 05c6d08a6695..d6d4ecb88e94 100644 --- a/drivers/clk/tegra/clk-pll.c +++ b/drivers/clk/tegra/clk-pll.c @@ -18,8 +18,8 @@ #include <linux/io.h> #include <linux/delay.h> #include <linux/err.h> -#include <linux/clk-provider.h> #include <linux/clk.h> +#include <linux/clk-provider.h> #include "clk.h" @@ -264,7 +264,7 @@ static int clk_pll_wait_for_lock(struct tegra_clk_pll *pll) } pr_err("%s: Timed out waiting for pll %s lock\n", __func__, - __clk_get_name(pll->hw.clk)); + clk_hw_get_name(&pll->hw)); return -1; } @@ -595,7 +595,7 @@ static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate, if (pll->params->flags & TEGRA_PLL_FIXED) { if (rate != pll->params->fixed_rate) { pr_err("%s: Can not change %s fixed rate %lu to %lu\n", - __func__, __clk_get_name(hw->clk), + __func__, clk_hw_get_name(hw), pll->params->fixed_rate, rate); return -EINVAL; } @@ -605,7 +605,7 @@ static int clk_pll_set_rate(struct clk_hw *hw, unsigned long rate, if (_get_table_rate(hw, &cfg, rate, parent_rate) && _calc_rate(hw, &cfg, rate, parent_rate)) { pr_err("%s: Failed to set %s rate %lu\n", __func__, - __clk_get_name(hw->clk), rate); + clk_hw_get_name(hw), rate); WARN_ON(1); return -EINVAL; } @@ -634,7 +634,7 @@ static long clk_pll_round_rate(struct clk_hw *hw, unsigned long rate, /* PLLM is used for memory; we do not change rate */ if (pll->params->flags & TEGRA_PLLM) - return __clk_get_rate(hw->clk); + return clk_hw_get_rate(hw); if (_get_table_rate(hw, &cfg, rate, *prate) && _calc_rate(hw, &cfg, rate, *prate)) @@ -663,7 +663,7 @@ static unsigned long clk_pll_recalc_rate(struct clk_hw *hw, if (_get_table_rate(hw, &sel, pll->params->fixed_rate, parent_rate)) { pr_err("Clock %s has unknown fixed frequency\n", - __clk_get_name(hw->clk)); + clk_hw_get_name(hw)); BUG(); } return pll->params->fixed_rate; @@ -1577,7 +1577,7 @@ struct clk *tegra_clk_register_pllxc(const char *name, const char *parent_name, if (!pll_params->pdiv_tohw) return ERR_PTR(-EINVAL); - parent_rate = __clk_get_rate(parent); + parent_rate = clk_get_rate(parent); pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); @@ -1674,7 +1674,7 @@ struct clk *tegra_clk_register_pllm(const char *name, const char *parent_name, return ERR_PTR(-EINVAL); } - parent_rate = __clk_get_rate(parent); + parent_rate = clk_get_rate(parent); pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); @@ -1715,7 +1715,7 @@ struct clk *tegra_clk_register_pllc(const char *name, const char *parent_name, return ERR_PTR(-EINVAL); } - parent_rate = __clk_get_rate(parent); + parent_rate = clk_get_rate(parent); pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); @@ -1848,7 +1848,7 @@ struct clk *tegra_clk_register_pllss(const char *name, const char *parent_name, val &= ~PLLSS_REF_SRC_SEL_MASK; pll_writel_base(val, pll); - parent_rate = __clk_get_rate(parent); + parent_rate = clk_get_rate(parent); pll_params->vco_min = _clip_vco_min(pll_params->vco_min, parent_rate); diff --git a/drivers/clk/tegra/clk-super.c b/drivers/clk/tegra/clk-super.c index 2fd924d38606..131d1b5085e2 100644 --- a/drivers/clk/tegra/clk-super.c +++ b/drivers/clk/tegra/clk-super.c @@ -20,7 +20,6 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/clk-provider.h> -#include <linux/clk.h> #include "clk.h" diff --git a/drivers/clk/tegra/clk-tegra-audio.c b/drivers/clk/tegra/clk-tegra-audio.c index 5c38aab2c5b8..11e3ad7ad7a3 100644 --- a/drivers/clk/tegra/clk-tegra-audio.c +++ b/drivers/clk/tegra/clk-tegra-audio.c @@ -15,7 +15,6 @@ */ #include <linux/io.h> -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/tegra/clk-tegra-fixed.c b/drivers/clk/tegra/clk-tegra-fixed.c index 605676d368eb..da0b5941c89f 100644 --- a/drivers/clk/tegra/clk-tegra-fixed.c +++ b/drivers/clk/tegra/clk-tegra-fixed.c @@ -15,7 +15,6 @@ */ #include <linux/io.h> -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clk/tegra/clk-tegra-periph.c b/drivers/clk/tegra/clk-tegra-periph.c index 46af9244ba74..cb6ab830941d 100644 --- a/drivers/clk/tegra/clk-tegra-periph.c +++ b/drivers/clk/tegra/clk-tegra-periph.c @@ -15,7 +15,6 @@ */ #include <linux/io.h> -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/of.h> diff --git a/drivers/clk/tegra/clk-tegra-pmc.c b/drivers/clk/tegra/clk-tegra-pmc.c index 08b21c1ee867..91377abfefa1 100644 --- a/drivers/clk/tegra/clk-tegra-pmc.c +++ b/drivers/clk/tegra/clk-tegra-pmc.c @@ -15,7 +15,6 @@ */ #include <linux/io.h> -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/of.h> diff --git a/drivers/clk/tegra/clk-tegra-super-gen4.c b/drivers/clk/tegra/clk-tegra-super-gen4.c index feb3201c85ce..5b1d723932c5 100644 --- a/drivers/clk/tegra/clk-tegra-super-gen4.c +++ b/drivers/clk/tegra/clk-tegra-super-gen4.c @@ -15,7 +15,6 @@ */ #include <linux/io.h> -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> @@ -44,7 +43,9 @@ static const char *sclk_parents[] = { "clk_m", "pll_c_out1", "pll_p_out4", static const char *cclk_g_parents[] = { "clk_m", "pll_c", "clk_32k", "pll_m", "pll_p", "pll_p_out4", "unused", - "unused", "pll_x" }; + "unused", "pll_x", "unused", "unused", + "unused", "unused", "unused", "unused", + "dfllCPU_out" }; static const char *cclk_lp_parents[] = { "clk_m", "pll_c", "clk_32k", "pll_m", "pll_p", "pll_p_out4", "unused", diff --git a/drivers/clk/tegra/clk-tegra114.c b/drivers/clk/tegra/clk-tegra114.c index 8237d16b4075..db5871519bf5 100644 --- a/drivers/clk/tegra/clk-tegra114.c +++ b/drivers/clk/tegra/clk-tegra114.c @@ -15,9 +15,7 @@ */ #include <linux/io.h> -#include <linux/clk.h> #include <linux/clk-provider.h> -#include <linux/clkdev.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/delay.h> diff --git a/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c b/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c new file mode 100644 index 000000000000..61253330c12b --- /dev/null +++ b/drivers/clk/tegra/clk-tegra124-dfll-fcpu.c @@ -0,0 +1,166 @@ +/* + * Tegra124 DFLL FCPU clock source driver + * + * Copyright (C) 2012-2014 NVIDIA Corporation. All rights reserved. + * + * Aleksandr Frid <afrid@nvidia.com> + * Paul Walmsley <pwalmsley@nvidia.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ + +#include <linux/cpu.h> +#include <linux/err.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <soc/tegra/fuse.h> + +#include "clk.h" +#include "clk-dfll.h" +#include "cvb.h" + +/* Maximum CPU frequency, indexed by CPU speedo id */ +static const unsigned long cpu_max_freq_table[] = { + [0] = 2014500000UL, + [1] = 2320500000UL, + [2] = 2116500000UL, + [3] = 2524500000UL, +}; + +static const struct cvb_table tegra124_cpu_cvb_tables[] = { + { + .speedo_id = -1, + .process_id = -1, + .min_millivolts = 900, + .max_millivolts = 1260, + .alignment = { + .step_uv = 10000, /* 10mV */ + }, + .speedo_scale = 100, + .voltage_scale = 1000, + .cvb_table = { + {204000000UL, {1112619, -29295, 402} }, + {306000000UL, {1150460, -30585, 402} }, + {408000000UL, {1190122, -31865, 402} }, + {510000000UL, {1231606, -33155, 402} }, + {612000000UL, {1274912, -34435, 402} }, + {714000000UL, {1320040, -35725, 402} }, + {816000000UL, {1366990, -37005, 402} }, + {918000000UL, {1415762, -38295, 402} }, + {1020000000UL, {1466355, -39575, 402} }, + {1122000000UL, {1518771, -40865, 402} }, + {1224000000UL, {1573009, -42145, 402} }, + {1326000000UL, {1629068, -43435, 402} }, + {1428000000UL, {1686950, -44715, 402} }, + {1530000000UL, {1746653, -46005, 402} }, + {1632000000UL, {1808179, -47285, 402} }, + {1734000000UL, {1871526, -48575, 402} }, + {1836000000UL, {1936696, -49855, 402} }, + {1938000000UL, {2003687, -51145, 402} }, + {2014500000UL, {2054787, -52095, 402} }, + {2116500000UL, {2124957, -53385, 402} }, + {2218500000UL, {2196950, -54665, 402} }, + {2320500000UL, {2270765, -55955, 402} }, + {2422500000UL, {2346401, -57235, 402} }, + {2524500000UL, {2437299, -58535, 402} }, + {0, { 0, 0, 0} }, + }, + .cpu_dfll_data = { + .tune0_low = 0x005020ff, + .tune0_high = 0x005040ff, + .tune1 = 0x00000060, + } + }, +}; + +static int tegra124_dfll_fcpu_probe(struct platform_device *pdev) +{ + int process_id, speedo_id, speedo_value; + struct tegra_dfll_soc_data *soc; + const struct cvb_table *cvb; + + process_id = tegra_sku_info.cpu_process_id; + speedo_id = tegra_sku_info.cpu_speedo_id; + speedo_value = tegra_sku_info.cpu_speedo_value; + + if (speedo_id >= ARRAY_SIZE(cpu_max_freq_table)) { + dev_err(&pdev->dev, "unknown max CPU freq for speedo_id=%d\n", + speedo_id); + return -ENODEV; + } + + soc = devm_kzalloc(&pdev->dev, sizeof(*soc), GFP_KERNEL); + if (!soc) + return -ENOMEM; + + soc->dev = get_cpu_device(0); + if (!soc->dev) { + dev_err(&pdev->dev, "no CPU0 device\n"); + return -ENODEV; + } + + cvb = tegra_cvb_build_opp_table(tegra124_cpu_cvb_tables, + ARRAY_SIZE(tegra124_cpu_cvb_tables), + process_id, speedo_id, speedo_value, + cpu_max_freq_table[speedo_id], + soc->dev); + if (IS_ERR(cvb)) { + dev_err(&pdev->dev, "couldn't build OPP table: %ld\n", + PTR_ERR(cvb)); + return PTR_ERR(cvb); + } + + soc->min_millivolts = cvb->min_millivolts; + soc->tune0_low = cvb->cpu_dfll_data.tune0_low; + soc->tune0_high = cvb->cpu_dfll_data.tune0_high; + soc->tune1 = cvb->cpu_dfll_data.tune1; + + return tegra_dfll_register(pdev, soc); +} + +static const struct of_device_id tegra124_dfll_fcpu_of_match[] = { + { .compatible = "nvidia,tegra124-dfll", }, + { }, +}; +MODULE_DEVICE_TABLE(of, tegra124_dfll_fcpu_of_match); + +static const struct dev_pm_ops tegra124_dfll_pm_ops = { + SET_RUNTIME_PM_OPS(tegra_dfll_runtime_suspend, + tegra_dfll_runtime_resume, NULL) +}; + +static struct platform_driver tegra124_dfll_fcpu_driver = { + .probe = tegra124_dfll_fcpu_probe, + .remove = tegra_dfll_unregister, + .driver = { + .name = "tegra124-dfll", + .of_match_table = tegra124_dfll_fcpu_of_match, + .pm = &tegra124_dfll_pm_ops, + }, +}; + +static int __init tegra124_dfll_fcpu_init(void) +{ + return platform_driver_register(&tegra124_dfll_fcpu_driver); +} +module_init(tegra124_dfll_fcpu_init); + +static void __exit tegra124_dfll_fcpu_exit(void) +{ + platform_driver_unregister(&tegra124_dfll_fcpu_driver); +} +module_exit(tegra124_dfll_fcpu_exit); + +MODULE_DESCRIPTION("Tegra124 DFLL clock source driver"); +MODULE_LICENSE("GPL v2"); +MODULE_AUTHOR("Aleksandr Frid <afrid@nvidia.com>"); +MODULE_AUTHOR("Paul Walmsley <pwalmsley@nvidia.com>"); diff --git a/drivers/clk/tegra/clk-tegra124.c b/drivers/clk/tegra/clk-tegra124.c index e8cca3eac007..824d75883d2b 100644 --- a/drivers/clk/tegra/clk-tegra124.c +++ b/drivers/clk/tegra/clk-tegra124.c @@ -15,7 +15,6 @@ */ #include <linux/io.h> -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/of.h> @@ -24,6 +23,7 @@ #include <linux/export.h> #include <linux/clk/tegra.h> #include <dt-bindings/clock/tegra124-car.h> +#include <dt-bindings/reset/tegra124-car.h> #include "clk.h" #include "clk-id.h" @@ -39,6 +39,9 @@ #define CLK_SOURCE_CSITE 0x1d4 #define CLK_SOURCE_EMC 0x19c +#define RST_DFLL_DVCO 0x2f4 +#define DVFS_DFLL_RESET_SHIFT 0 + #define PLLC_BASE 0x80 #define PLLC_OUT 0x84 #define PLLC_MISC2 0x88 @@ -94,6 +97,8 @@ #define PMC_PLLM_WB0_OVERRIDE 0x1dc #define PMC_PLLM_WB0_OVERRIDE_2 0x2b0 +#define CCLKG_BURST_POLICY 0x368 + #define UTMIP_PLL_CFG2 0x488 #define UTMIP_PLL_CFG2_STABLE_COUNT(x) (((x) & 0xffff) << 6) #define UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(x) (((x) & 0x3f) << 18) @@ -126,6 +131,8 @@ #ifdef CONFIG_PM_SLEEP static struct cpu_clk_suspend_context { u32 clk_csite_src; + u32 cclkg_burst; + u32 cclkg_divider; } tegra124_cpu_clk_sctx; #endif @@ -1319,12 +1326,22 @@ static void tegra124_cpu_clock_suspend(void) tegra124_cpu_clk_sctx.clk_csite_src = readl(clk_base + CLK_SOURCE_CSITE); writel(3 << 30, clk_base + CLK_SOURCE_CSITE); + + tegra124_cpu_clk_sctx.cclkg_burst = + readl(clk_base + CCLKG_BURST_POLICY); + tegra124_cpu_clk_sctx.cclkg_divider = + readl(clk_base + CCLKG_BURST_POLICY + 4); } static void tegra124_cpu_clock_resume(void) { writel(tegra124_cpu_clk_sctx.clk_csite_src, clk_base + CLK_SOURCE_CSITE); + + writel(tegra124_cpu_clk_sctx.cclkg_burst, + clk_base + CCLKG_BURST_POLICY); + writel(tegra124_cpu_clk_sctx.cclkg_divider, + clk_base + CCLKG_BURST_POLICY + 4); } #endif @@ -1415,6 +1432,68 @@ static void __init tegra124_clock_apply_init_table(void) } /** + * tegra124_car_barrier - wait for pending writes to the CAR to complete + * + * Wait for any outstanding writes to the CAR MMIO space from this CPU + * to complete before continuing execution. No return value. + */ +static void tegra124_car_barrier(void) +{ + readl_relaxed(clk_base + RST_DFLL_DVCO); +} + +/** + * tegra124_clock_assert_dfll_dvco_reset - assert the DFLL's DVCO reset + * + * Assert the reset line of the DFLL's DVCO. No return value. + */ +static void tegra124_clock_assert_dfll_dvco_reset(void) +{ + u32 v; + + v = readl_relaxed(clk_base + RST_DFLL_DVCO); + v |= (1 << DVFS_DFLL_RESET_SHIFT); + writel_relaxed(v, clk_base + RST_DFLL_DVCO); + tegra124_car_barrier(); +} + +/** + * tegra124_clock_deassert_dfll_dvco_reset - deassert the DFLL's DVCO reset + * + * Deassert the reset line of the DFLL's DVCO, allowing the DVCO to + * operate. No return value. + */ +static void tegra124_clock_deassert_dfll_dvco_reset(void) +{ + u32 v; + + v = readl_relaxed(clk_base + RST_DFLL_DVCO); + v &= ~(1 << DVFS_DFLL_RESET_SHIFT); + writel_relaxed(v, clk_base + RST_DFLL_DVCO); + tegra124_car_barrier(); +} + +static int tegra124_reset_assert(unsigned long id) +{ + if (id == TEGRA124_RST_DFLL_DVCO) + tegra124_clock_assert_dfll_dvco_reset(); + else + return -EINVAL; + + return 0; +} + +static int tegra124_reset_deassert(unsigned long id) +{ + if (id == TEGRA124_RST_DFLL_DVCO) + tegra124_clock_deassert_dfll_dvco_reset(); + else + return -EINVAL; + + return 0; +} + +/** * tegra132_clock_apply_init_table - initialize clocks on Tegra132 SoCs * * Program an initial clock rate and enable or disable clocks needed @@ -1499,6 +1578,8 @@ static void __init tegra124_132_clock_init_post(struct device_node *np) { tegra_super_clk_gen4_init(clk_base, pmc_base, tegra124_clks, &pll_x_params); + tegra_init_special_resets(1, tegra124_reset_assert, + tegra124_reset_deassert); tegra_add_of_provider(np); clks[TEGRA124_CLK_EMC] = tegra_clk_register_emc(clk_base, np, diff --git a/drivers/clk/tegra/clk-tegra20.c b/drivers/clk/tegra/clk-tegra20.c index 41272dcc9e22..bf004f0e4f65 100644 --- a/drivers/clk/tegra/clk-tegra20.c +++ b/drivers/clk/tegra/clk-tegra20.c @@ -15,7 +15,6 @@ */ #include <linux/io.h> -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/of.h> diff --git a/drivers/clk/tegra/clk-tegra30.c b/drivers/clk/tegra/clk-tegra30.c index 0af3e834dd24..fad561a5896b 100644 --- a/drivers/clk/tegra/clk-tegra30.c +++ b/drivers/clk/tegra/clk-tegra30.c @@ -16,7 +16,6 @@ #include <linux/io.h> #include <linux/delay.h> -#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/of.h> diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c index 41cd87c67be6..2a3a4fe803d6 100644 --- a/drivers/clk/tegra/clk.c +++ b/drivers/clk/tegra/clk.c @@ -14,6 +14,7 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +#include <linux/clkdev.h> #include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of.h> @@ -49,7 +50,6 @@ #define RST_DEVICES_L 0x004 #define RST_DEVICES_H 0x008 #define RST_DEVICES_U 0x00C -#define RST_DFLL_DVCO 0x2F4 #define RST_DEVICES_V 0x358 #define RST_DEVICES_W 0x35C #define RST_DEVICES_X 0x28C @@ -79,6 +79,11 @@ static struct clk **clks; static int clk_num; static struct clk_onecell_data clk_data; +/* Handlers for SoC-specific reset lines */ +static int (*special_reset_assert)(unsigned long); +static int (*special_reset_deassert)(unsigned long); +static unsigned int num_special_reset; + static struct tegra_clk_periph_regs periph_regs[] = { [0] = { .enb_reg = CLK_OUT_ENB_L, @@ -152,19 +157,29 @@ static int tegra_clk_rst_assert(struct reset_controller_dev *rcdev, */ tegra_read_chipid(); - writel_relaxed(BIT(id % 32), - clk_base + periph_regs[id / 32].rst_set_reg); + if (id < periph_banks * 32) { + writel_relaxed(BIT(id % 32), + clk_base + periph_regs[id / 32].rst_set_reg); + return 0; + } else if (id < periph_banks * 32 + num_special_reset) { + return special_reset_assert(id); + } - return 0; + return -EINVAL; } static int tegra_clk_rst_deassert(struct reset_controller_dev *rcdev, unsigned long id) { - writel_relaxed(BIT(id % 32), - clk_base + periph_regs[id / 32].rst_clr_reg); + if (id < periph_banks * 32) { + writel_relaxed(BIT(id % 32), + clk_base + periph_regs[id / 32].rst_clr_reg); + return 0; + } else if (id < periph_banks * 32 + num_special_reset) { + return special_reset_deassert(id); + } - return 0; + return -EINVAL; } struct tegra_clk_periph_regs *get_reg_bank(int clkid) @@ -286,10 +301,19 @@ void __init tegra_add_of_provider(struct device_node *np) of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data); rst_ctlr.of_node = np; - rst_ctlr.nr_resets = periph_banks * 32; + rst_ctlr.nr_resets = periph_banks * 32 + num_special_reset; reset_controller_register(&rst_ctlr); } +void __init tegra_init_special_resets(unsigned int num, + int (*assert)(unsigned long), + int (*deassert)(unsigned long)) +{ + num_special_reset = num; + special_reset_assert = assert; + special_reset_deassert = deassert; +} + void __init tegra_register_devclks(struct tegra_devclk *dev_clks, int num) { int i; diff --git a/drivers/clk/tegra/clk.h b/drivers/clk/tegra/clk.h index 75ddc8ff8bd4..0621887e06f7 100644 --- a/drivers/clk/tegra/clk.h +++ b/drivers/clk/tegra/clk.h @@ -591,6 +591,9 @@ struct tegra_devclk { char *con_id; }; +void tegra_init_special_resets(unsigned int num, int (*assert)(unsigned long), + int (*deassert)(unsigned long)); + void tegra_init_from_table(struct tegra_clk_init_table *tbl, struct clk *clks[], int clk_max); diff --git a/drivers/clk/tegra/cvb.c b/drivers/clk/tegra/cvb.c new file mode 100644 index 000000000000..0204e0861134 --- /dev/null +++ b/drivers/clk/tegra/cvb.c @@ -0,0 +1,140 @@ +/* + * Utility functions for parsing Tegra CVB voltage tables + * + * Copyright (C) 2012-2014 NVIDIA Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ +#include <linux/err.h> +#include <linux/kernel.h> +#include <linux/pm_opp.h> + +#include "cvb.h" + +/* cvb_mv = ((c2 * speedo / s_scale + c1) * speedo / s_scale + c0) */ +static inline int get_cvb_voltage(int speedo, int s_scale, + const struct cvb_coefficients *cvb) +{ + int mv; + + /* apply only speedo scale: output mv = cvb_mv * v_scale */ + mv = DIV_ROUND_CLOSEST(cvb->c2 * speedo, s_scale); + mv = DIV_ROUND_CLOSEST((mv + cvb->c1) * speedo, s_scale) + cvb->c0; + return mv; +} + +static int round_cvb_voltage(int mv, int v_scale, + const struct rail_alignment *align) +{ + /* combined: apply voltage scale and round to cvb alignment step */ + int uv; + int step = (align->step_uv ? : 1000) * v_scale; + int offset = align->offset_uv * v_scale; + + uv = max(mv * 1000, offset) - offset; + uv = DIV_ROUND_UP(uv, step) * align->step_uv + align->offset_uv; + return uv / 1000; +} + +enum { + DOWN, + UP +}; + +static int round_voltage(int mv, const struct rail_alignment *align, int up) +{ + if (align->step_uv) { + int uv; + + uv = max(mv * 1000, align->offset_uv) - align->offset_uv; + uv = (uv + (up ? align->step_uv - 1 : 0)) / align->step_uv; + return (uv * align->step_uv + align->offset_uv) / 1000; + } + return mv; +} + +static int build_opp_table(const struct cvb_table *d, + int speedo_value, + unsigned long max_freq, + struct device *opp_dev) +{ + int i, ret, dfll_mv, min_mv, max_mv; + const struct cvb_table_freq_entry *table = NULL; + const struct rail_alignment *align = &d->alignment; + + min_mv = round_voltage(d->min_millivolts, align, UP); + max_mv = round_voltage(d->max_millivolts, align, DOWN); + + for (i = 0; i < MAX_DVFS_FREQS; i++) { + table = &d->cvb_table[i]; + if (!table->freq || (table->freq > max_freq)) + break; + + /* + * FIXME after clk_round_rate/clk_determine_rate prototypes + * have been updated + */ + if (table->freq & (1<<31)) + continue; + + dfll_mv = get_cvb_voltage( + speedo_value, d->speedo_scale, &table->coefficients); + dfll_mv = round_cvb_voltage(dfll_mv, d->voltage_scale, align); + dfll_mv = clamp(dfll_mv, min_mv, max_mv); + + ret = dev_pm_opp_add(opp_dev, table->freq, dfll_mv * 1000); + if (ret) + return ret; + } + + return 0; +} + +/** + * tegra_cvb_build_opp_table - build OPP table from Tegra CVB tables + * @cvb_tables: array of CVB tables + * @sz: size of the previously mentioned array + * @process_id: process id of the HW module + * @speedo_id: speedo id of the HW module + * @speedo_value: speedo value of the HW module + * @max_rate: highest safe clock rate + * @opp_dev: the struct device * for which the OPP table is built + * + * On Tegra, a CVB table encodes the relationship between operating voltage + * and safe maximal frequency for a given module (e.g. GPU or CPU). This + * function calculates the optimal voltage-frequency operating points + * for the given arguments and exports them via the OPP library for the + * given @opp_dev. Returns a pointer to the struct cvb_table that matched + * or an ERR_PTR on failure. + */ +const struct cvb_table *tegra_cvb_build_opp_table( + const struct cvb_table *cvb_tables, + size_t sz, int process_id, + int speedo_id, int speedo_value, + unsigned long max_rate, + struct device *opp_dev) +{ + int i, ret; + + for (i = 0; i < sz; i++) { + const struct cvb_table *d = &cvb_tables[i]; + + if (d->speedo_id != -1 && d->speedo_id != speedo_id) + continue; + if (d->process_id != -1 && d->process_id != process_id) + continue; + + ret = build_opp_table(d, speedo_value, max_rate, opp_dev); + return ret ? ERR_PTR(ret) : d; + } + + return ERR_PTR(-EINVAL); +} diff --git a/drivers/clk/tegra/cvb.h b/drivers/clk/tegra/cvb.h new file mode 100644 index 000000000000..f62cdc4f4234 --- /dev/null +++ b/drivers/clk/tegra/cvb.h @@ -0,0 +1,67 @@ +/* + * Utility functions for parsing Tegra CVB voltage tables + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ + +#ifndef __DRIVERS_CLK_TEGRA_CVB_H +#define __DRIVERS_CLK_TEGRA_CVB_H + +#include <linux/types.h> + +struct device; + +#define MAX_DVFS_FREQS 40 + +struct rail_alignment { + int offset_uv; + int step_uv; +}; + +struct cvb_coefficients { + int c0; + int c1; + int c2; +}; + +struct cvb_table_freq_entry { + unsigned long freq; + struct cvb_coefficients coefficients; +}; + +struct cvb_cpu_dfll_data { + u32 tune0_low; + u32 tune0_high; + u32 tune1; +}; + +struct cvb_table { + int speedo_id; + int process_id; + + int min_millivolts; + int max_millivolts; + struct rail_alignment alignment; + + int speedo_scale; + int voltage_scale; + struct cvb_table_freq_entry cvb_table[MAX_DVFS_FREQS]; + struct cvb_cpu_dfll_data cpu_dfll_data; +}; + +const struct cvb_table *tegra_cvb_build_opp_table( + const struct cvb_table *cvb_tables, + size_t sz, int process_id, + int speedo_id, int speedo_value, + unsigned long max_rate, + struct device *opp_dev); + +#endif diff --git a/drivers/clk/ti/Makefile b/drivers/clk/ti/Makefile index 105ffd0f5e79..9b93e6904359 100644 --- a/drivers/clk/ti/Makefile +++ b/drivers/clk/ti/Makefile @@ -1,16 +1,19 @@ obj-y += clk.o autoidle.o clockdomain.o clk-common = dpll.o composite.o divider.o gate.o \ - fixed-factor.o mux.o apll.o -obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o + fixed-factor.o mux.o apll.o \ + clkt_dpll.o clkt_iclk.o clkt_dflt.o +obj-$(CONFIG_SOC_AM33XX) += $(clk-common) clk-33xx.o dpll3xxx.o obj-$(CONFIG_SOC_TI81XX) += $(clk-common) fapll.o clk-816x.o obj-$(CONFIG_ARCH_OMAP2) += $(clk-common) interface.o clk-2xxx.o obj-$(CONFIG_ARCH_OMAP3) += $(clk-common) interface.o \ - clk-3xxx.o -obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o -obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o + clk-3xxx.o dpll3xxx.o +obj-$(CONFIG_ARCH_OMAP4) += $(clk-common) clk-44xx.o \ + dpll3xxx.o dpll44xx.o +obj-$(CONFIG_SOC_OMAP5) += $(clk-common) clk-54xx.o \ + dpll3xxx.o dpll44xx.o obj-$(CONFIG_SOC_DRA7XX) += $(clk-common) clk-7xx.o \ - clk-dra7-atl.o -obj-$(CONFIG_SOC_AM43XX) += $(clk-common) clk-43xx.o + clk-dra7-atl.o dpll3xxx.o dpll44xx.o +obj-$(CONFIG_SOC_AM43XX) += $(clk-common) dpll3xxx.o clk-43xx.o ifdef CONFIG_ATAGS obj-$(CONFIG_ARCH_OMAP3) += clk-3xxx-legacy.o diff --git a/drivers/clk/ti/apll.c b/drivers/clk/ti/apll.c index 49baf3831546..f3eab6e79027 100644 --- a/drivers/clk/ti/apll.c +++ b/drivers/clk/ti/apll.c @@ -15,6 +15,7 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/module.h> #include <linux/slab.h> @@ -27,6 +28,8 @@ #include <linux/clk/ti.h> #include <linux/delay.h> +#include "clock.h" + #define APLL_FORCE_LOCK 0x1 #define APLL_AUTO_IDLE 0x2 #define MAX_APLL_WAIT_TRIES 1000000 @@ -47,7 +50,7 @@ static int dra7_apll_enable(struct clk_hw *hw) if (!ad) return -EINVAL; - clk_name = __clk_get_name(clk->hw.clk); + clk_name = clk_hw_get_name(&clk->hw); state <<= __ffs(ad->idlest_mask); @@ -170,7 +173,6 @@ static void __init of_dra7_apll_setup(struct device_node *node) struct clk_hw_omap *clk_hw = NULL; struct clk_init_data *init = NULL; const char **parent_names = NULL; - int i; ad = kzalloc(sizeof(*ad), GFP_KERNEL); clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL); @@ -195,8 +197,7 @@ static void __init of_dra7_apll_setup(struct device_node *node) if (!parent_names) goto cleanup; - for (i = 0; i < init->num_parents; i++) - parent_names[i] = of_clk_get_parent_name(node, i); + of_clk_parent_fill(node, parent_names, init->num_parents); init->parent_names = parent_names; @@ -272,7 +273,7 @@ static int omap2_apll_enable(struct clk_hw *hw) if (i == MAX_APLL_WAIT_TRIES) { pr_warn("%s failed to transition to locked\n", - __clk_get_name(clk->hw.clk)); + clk_hw_get_name(&clk->hw)); return -EBUSY; } diff --git a/drivers/clk/ti/autoidle.c b/drivers/clk/ti/autoidle.c index e75c64c9e81c..345af43465f0 100644 --- a/drivers/clk/ti/autoidle.c +++ b/drivers/clk/ti/autoidle.c @@ -22,6 +22,8 @@ #include <linux/of_address.h> #include <linux/clk/ti.h> +#include "clock.h" + struct clk_ti_autoidle { void __iomem *reg; u8 shift; @@ -33,8 +35,41 @@ struct clk_ti_autoidle { #define AUTOIDLE_LOW 0x1 static LIST_HEAD(autoidle_clks); +static LIST_HEAD(clk_hw_omap_clocks); + +/** + * omap2_clk_deny_idle - disable autoidle on an OMAP clock + * @clk: struct clk * to disable autoidle for + * + * Disable autoidle on an OMAP clock. + */ +int omap2_clk_deny_idle(struct clk *clk) +{ + struct clk_hw_omap *c; -static void ti_allow_autoidle(struct clk_ti_autoidle *clk) + c = to_clk_hw_omap(__clk_get_hw(clk)); + if (c->ops && c->ops->deny_idle) + c->ops->deny_idle(c); + return 0; +} + +/** + * omap2_clk_allow_idle - enable autoidle on an OMAP clock + * @clk: struct clk * to enable autoidle for + * + * Enable autoidle on an OMAP clock. + */ +int omap2_clk_allow_idle(struct clk *clk) +{ + struct clk_hw_omap *c; + + c = to_clk_hw_omap(__clk_get_hw(clk)); + if (c->ops && c->ops->allow_idle) + c->ops->allow_idle(c); + return 0; +} + +static void _allow_autoidle(struct clk_ti_autoidle *clk) { u32 val; @@ -48,7 +83,7 @@ static void ti_allow_autoidle(struct clk_ti_autoidle *clk) ti_clk_ll_ops->clk_writel(val, clk->reg); } -static void ti_deny_autoidle(struct clk_ti_autoidle *clk) +static void _deny_autoidle(struct clk_ti_autoidle *clk) { u32 val; @@ -63,31 +98,31 @@ static void ti_deny_autoidle(struct clk_ti_autoidle *clk) } /** - * of_ti_clk_allow_autoidle_all - enable autoidle for all clocks + * _clk_generic_allow_autoidle_all - enable autoidle for all clocks * * Enables hardware autoidle for all registered DT clocks, which have * the feature. */ -void of_ti_clk_allow_autoidle_all(void) +static void _clk_generic_allow_autoidle_all(void) { struct clk_ti_autoidle *c; list_for_each_entry(c, &autoidle_clks, node) - ti_allow_autoidle(c); + _allow_autoidle(c); } /** - * of_ti_clk_deny_autoidle_all - disable autoidle for all clocks + * _clk_generic_deny_autoidle_all - disable autoidle for all clocks * * Disables hardware autoidle for all registered DT clocks, which have * the feature. */ -void of_ti_clk_deny_autoidle_all(void) +static void _clk_generic_deny_autoidle_all(void) { struct clk_ti_autoidle *c; list_for_each_entry(c, &autoidle_clks, node) - ti_deny_autoidle(c); + _deny_autoidle(c); } /** @@ -131,3 +166,67 @@ int __init of_ti_clk_autoidle_setup(struct device_node *node) return 0; } + +/** + * omap2_init_clk_hw_omap_clocks - initialize an OMAP clock + * @hw: struct clk_hw * to initialize + * + * Add an OMAP clock @clk to the internal list of OMAP clocks. Used + * temporarily for autoidle handling, until this support can be + * integrated into the common clock framework code in some way. No + * return value. + */ +void omap2_init_clk_hw_omap_clocks(struct clk_hw *hw) +{ + struct clk_hw_omap *c; + + if (clk_hw_get_flags(hw) & CLK_IS_BASIC) + return; + + c = to_clk_hw_omap(hw); + list_add(&c->node, &clk_hw_omap_clocks); +} + +/** + * omap2_clk_enable_autoidle_all - enable autoidle on all OMAP clocks that + * support it + * + * Enable clock autoidle on all OMAP clocks that have allow_idle + * function pointers associated with them. This function is intended + * to be temporary until support for this is added to the common clock + * code. Returns 0. + */ +int omap2_clk_enable_autoidle_all(void) +{ + struct clk_hw_omap *c; + + list_for_each_entry(c, &clk_hw_omap_clocks, node) + if (c->ops && c->ops->allow_idle) + c->ops->allow_idle(c); + + _clk_generic_allow_autoidle_all(); + + return 0; +} + +/** + * omap2_clk_disable_autoidle_all - disable autoidle on all OMAP clocks that + * support it + * + * Disable clock autoidle on all OMAP clocks that have allow_idle + * function pointers associated with them. This function is intended + * to be temporary until support for this is added to the common clock + * code. Returns 0. + */ +int omap2_clk_disable_autoidle_all(void) +{ + struct clk_hw_omap *c; + + list_for_each_entry(c, &clk_hw_omap_clocks, node) + if (c->ops && c->ops->deny_idle) + c->ops->deny_idle(c); + + _clk_generic_deny_autoidle_all(); + + return 0; +} diff --git a/drivers/clk/ti/clk-2xxx.c b/drivers/clk/ti/clk-2xxx.c index c808ab3d2bb2..657c4fe07a95 100644 --- a/drivers/clk/ti/clk-2xxx.c +++ b/drivers/clk/ti/clk-2xxx.c @@ -16,9 +16,11 @@ #include <linux/kernel.h> #include <linux/list.h> -#include <linux/clk-provider.h> +#include <linux/clk.h> #include <linux/clk/ti.h> +#include "clock.h" + static struct ti_dt_clk omap2xxx_clks[] = { DT_CLK(NULL, "func_32k_ck", "func_32k_ck"), DT_CLK(NULL, "secure_32k_ck", "secure_32k_ck"), diff --git a/drivers/clk/ti/clk-33xx.c b/drivers/clk/ti/clk-33xx.c index 028b33783d38..ef2ec64fe547 100644 --- a/drivers/clk/ti/clk-33xx.c +++ b/drivers/clk/ti/clk-33xx.c @@ -16,9 +16,12 @@ #include <linux/kernel.h> #include <linux/list.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clk/ti.h> +#include "clock.h" + static struct ti_dt_clk am33xx_clks[] = { DT_CLK(NULL, "clk_32768_ck", "clk_32768_ck"), DT_CLK(NULL, "clk_rc32k_ck", "clk_rc32k_ck"), diff --git a/drivers/clk/ti/clk-3xxx-legacy.c b/drivers/clk/ti/clk-3xxx-legacy.c index 0b61548d569b..0fbf8a917955 100644 --- a/drivers/clk/ti/clk-3xxx-legacy.c +++ b/drivers/clk/ti/clk-3xxx-legacy.c @@ -15,6 +15,7 @@ */ #include <linux/kernel.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clk/ti.h> diff --git a/drivers/clk/ti/clk-3xxx.c b/drivers/clk/ti/clk-3xxx.c index 757636d166cf..676ee8f6d813 100644 --- a/drivers/clk/ti/clk-3xxx.c +++ b/drivers/clk/ti/clk-3xxx.c @@ -16,9 +16,220 @@ #include <linux/kernel.h> #include <linux/list.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clk/ti.h> +#include "clock.h" + +/* + * DPLL5_FREQ_FOR_USBHOST: USBHOST and USBTLL are the only clocks + * that are sourced by DPLL5, and both of these require this clock + * to be at 120 MHz for proper operation. + */ +#define DPLL5_FREQ_FOR_USBHOST 120000000 + +#define OMAP3430ES2_ST_DSS_IDLE_SHIFT 1 +#define OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT 5 +#define OMAP3430ES2_ST_SSI_IDLE_SHIFT 8 + +#define OMAP34XX_CM_IDLEST_VAL 1 + +/* + * In AM35xx IPSS, the {ICK,FCK} enable bits for modules are exported + * in the same register at a bit offset of 0x8. The EN_ACK for ICK is + * at an offset of 4 from ICK enable bit. + */ +#define AM35XX_IPSS_ICK_MASK 0xF +#define AM35XX_IPSS_ICK_EN_ACK_OFFSET 0x4 +#define AM35XX_IPSS_ICK_FCK_OFFSET 0x8 +#define AM35XX_IPSS_CLK_IDLEST_VAL 0 + +#define AM35XX_ST_IPSS_SHIFT 5 + +/** + * omap3430es2_clk_ssi_find_idlest - return CM_IDLEST info for SSI + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator + * + * The OMAP3430ES2 SSI target CM_IDLEST bit is at a different shift + * from the CM_{I,F}CLKEN bit. Pass back the correct info via + * @idlest_reg and @idlest_bit. No return value. + */ +static void omap3430es2_clk_ssi_find_idlest(struct clk_hw_omap *clk, + void __iomem **idlest_reg, + u8 *idlest_bit, + u8 *idlest_val) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = OMAP3430ES2_ST_SSI_IDLE_SHIFT; + *idlest_val = OMAP34XX_CM_IDLEST_VAL; +} + +const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait = { + .allow_idle = omap2_clkt_iclk_allow_idle, + .deny_idle = omap2_clkt_iclk_deny_idle, + .find_idlest = omap3430es2_clk_ssi_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + +/** + * omap3430es2_clk_dss_usbhost_find_idlest - CM_IDLEST info for DSS, USBHOST + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator + * + * Some OMAP modules on OMAP3 ES2+ chips have both initiator and + * target IDLEST bits. For our purposes, we are concerned with the + * target IDLEST bits, which exist at a different bit position than + * the *CLKEN bit position for these modules (DSS and USBHOST) (The + * default find_idlest code assumes that they are at the same + * position.) No return value. + */ +static void omap3430es2_clk_dss_usbhost_find_idlest(struct clk_hw_omap *clk, + void __iomem **idlest_reg, + u8 *idlest_bit, + u8 *idlest_val) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + /* USBHOST_IDLE has same shift */ + *idlest_bit = OMAP3430ES2_ST_DSS_IDLE_SHIFT; + *idlest_val = OMAP34XX_CM_IDLEST_VAL; +} + +const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait = { + .find_idlest = omap3430es2_clk_dss_usbhost_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + +const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait = { + .allow_idle = omap2_clkt_iclk_allow_idle, + .deny_idle = omap2_clkt_iclk_deny_idle, + .find_idlest = omap3430es2_clk_dss_usbhost_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + +/** + * omap3430es2_clk_hsotgusb_find_idlest - return CM_IDLEST info for HSOTGUSB + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator + * + * The OMAP3430ES2 HSOTGUSB target CM_IDLEST bit is at a different + * shift from the CM_{I,F}CLKEN bit. Pass back the correct info via + * @idlest_reg and @idlest_bit. No return value. + */ +static void omap3430es2_clk_hsotgusb_find_idlest(struct clk_hw_omap *clk, + void __iomem **idlest_reg, + u8 *idlest_bit, + u8 *idlest_val) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = OMAP3430ES2_ST_HSOTGUSB_IDLE_SHIFT; + *idlest_val = OMAP34XX_CM_IDLEST_VAL; +} + +const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait = { + .allow_idle = omap2_clkt_iclk_allow_idle, + .deny_idle = omap2_clkt_iclk_deny_idle, + .find_idlest = omap3430es2_clk_hsotgusb_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + +/** + * am35xx_clk_find_idlest - return clock ACK info for AM35XX IPSS + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator + * + * The interface clocks on AM35xx IPSS reflects the clock idle status + * in the enable register itsel at a bit offset of 4 from the enable + * bit. A value of 1 indicates that clock is enabled. + */ +static void am35xx_clk_find_idlest(struct clk_hw_omap *clk, + void __iomem **idlest_reg, + u8 *idlest_bit, + u8 *idlest_val) +{ + *idlest_reg = (__force void __iomem *)(clk->enable_reg); + *idlest_bit = clk->enable_bit + AM35XX_IPSS_ICK_EN_ACK_OFFSET; + *idlest_val = AM35XX_IPSS_CLK_IDLEST_VAL; +} + +/** + * am35xx_clk_find_companion - find companion clock to @clk + * @clk: struct clk * to find the companion clock of + * @other_reg: void __iomem ** to return the companion clock CM_*CLKEN va in + * @other_bit: u8 ** to return the companion clock bit shift in + * + * Some clocks don't have companion clocks. For example, modules with + * only an interface clock (such as HECC) don't have a companion + * clock. Right now, this code relies on the hardware exporting a bit + * in the correct companion register that indicates that the + * nonexistent 'companion clock' is active. Future patches will + * associate this type of code with per-module data structures to + * avoid this issue, and remove the casts. No return value. + */ +static void am35xx_clk_find_companion(struct clk_hw_omap *clk, + void __iomem **other_reg, + u8 *other_bit) +{ + *other_reg = (__force void __iomem *)(clk->enable_reg); + if (clk->enable_bit & AM35XX_IPSS_ICK_MASK) + *other_bit = clk->enable_bit + AM35XX_IPSS_ICK_FCK_OFFSET; + else + *other_bit = clk->enable_bit - AM35XX_IPSS_ICK_FCK_OFFSET; +} + +const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait = { + .find_idlest = am35xx_clk_find_idlest, + .find_companion = am35xx_clk_find_companion, +}; + +/** + * am35xx_clk_ipss_find_idlest - return CM_IDLEST info for IPSS + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator + * + * The IPSS target CM_IDLEST bit is at a different shift from the + * CM_{I,F}CLKEN bit. Pass back the correct info via @idlest_reg + * and @idlest_bit. No return value. + */ +static void am35xx_clk_ipss_find_idlest(struct clk_hw_omap *clk, + void __iomem **idlest_reg, + u8 *idlest_bit, + u8 *idlest_val) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = AM35XX_ST_IPSS_SHIFT; + *idlest_val = OMAP34XX_CM_IDLEST_VAL; +} + +const struct clk_hw_omap_ops clkhwops_am35xx_ipss_wait = { + .allow_idle = omap2_clkt_iclk_allow_idle, + .deny_idle = omap2_clkt_iclk_deny_idle, + .find_idlest = am35xx_clk_ipss_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; static struct ti_dt_clk omap3xxx_clks[] = { DT_CLK(NULL, "apb_pclk", "dummy_apb_pclk"), @@ -324,6 +535,30 @@ enum { OMAP3_SOC_OMAP3630, }; +/** + * omap3_clk_lock_dpll5 - locks DPLL5 + * + * Locks DPLL5 to a pre-defined frequency. This is required for proper + * operation of USB. + */ +void __init omap3_clk_lock_dpll5(void) +{ + struct clk *dpll5_clk; + struct clk *dpll5_m2_clk; + + dpll5_clk = clk_get(NULL, "dpll5_ck"); + clk_set_rate(dpll5_clk, DPLL5_FREQ_FOR_USBHOST); + clk_prepare_enable(dpll5_clk); + + /* Program dpll5_m2_clk divider for no division */ + dpll5_m2_clk = clk_get(NULL, "dpll5_m2_ck"); + clk_prepare_enable(dpll5_m2_clk); + clk_set_rate(dpll5_m2_clk, DPLL5_FREQ_FOR_USBHOST); + + clk_disable_unprepare(dpll5_m2_clk); + clk_disable_unprepare(dpll5_clk); +} + static int __init omap3xxx_dt_clk_init(int soc_type) { if (soc_type == OMAP3_SOC_AM35XX || soc_type == OMAP3_SOC_OMAP3630 || diff --git a/drivers/clk/ti/clk-43xx.c b/drivers/clk/ti/clk-43xx.c index 3795fce8a830..72411fbcb6f3 100644 --- a/drivers/clk/ti/clk-43xx.c +++ b/drivers/clk/ti/clk-43xx.c @@ -16,9 +16,12 @@ #include <linux/kernel.h> #include <linux/list.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clk/ti.h> +#include "clock.h" + static struct ti_dt_clk am43xx_clks[] = { DT_CLK(NULL, "clk_32768_ck", "clk_32768_ck"), DT_CLK(NULL, "clk_rc32k_ck", "clk_rc32k_ck"), diff --git a/drivers/clk/ti/clk-44xx.c b/drivers/clk/ti/clk-44xx.c index 581db7711f51..7a8b51b35f9f 100644 --- a/drivers/clk/ti/clk-44xx.c +++ b/drivers/clk/ti/clk-44xx.c @@ -16,6 +16,8 @@ #include <linux/clkdev.h> #include <linux/clk/ti.h> +#include "clock.h" + /* * OMAP4 ABE DPLL default frequency. In OMAP4460 TRM version V, section * "3.6.3.2.3 CM1_ABE Clock Generator" states that the "DPLL_ABE_X2_CLK diff --git a/drivers/clk/ti/clk-54xx.c b/drivers/clk/ti/clk-54xx.c index 96c69a335975..59ce2fa2c104 100644 --- a/drivers/clk/ti/clk-54xx.c +++ b/drivers/clk/ti/clk-54xx.c @@ -17,6 +17,8 @@ #include <linux/io.h> #include <linux/clk/ti.h> +#include "clock.h" + #define OMAP5_DPLL_ABE_DEFFREQ 98304000 /* diff --git a/drivers/clk/ti/clk-7xx.c b/drivers/clk/ti/clk-7xx.c index 63b8323df918..9b5b289e6334 100644 --- a/drivers/clk/ti/clk-7xx.c +++ b/drivers/clk/ti/clk-7xx.c @@ -16,11 +16,12 @@ #include <linux/clkdev.h> #include <linux/clk/ti.h> +#include "clock.h" + #define DRA7_DPLL_ABE_DEFFREQ 180633600 #define DRA7_DPLL_GMAC_DEFFREQ 1000000000 #define DRA7_DPLL_USB_DEFFREQ 960000000 - static struct ti_dt_clk dra7xx_clks[] = { DT_CLK(NULL, "atl_clkin0_ck", "atl_clkin0_ck"), DT_CLK(NULL, "atl_clkin1_ck", "atl_clkin1_ck"), diff --git a/drivers/clk/ti/clk-816x.c b/drivers/clk/ti/clk-816x.c index 9451e651a1ff..c69352b24dba 100644 --- a/drivers/clk/ti/clk-816x.c +++ b/drivers/clk/ti/clk-816x.c @@ -14,6 +14,8 @@ #include <linux/clk-provider.h> #include <linux/clk/ti.h> +#include "clock.h" + static struct ti_dt_clk dm816x_clks[] = { DT_CLK(NULL, "sys_clkin", "sys_clkin_ck"), DT_CLK(NULL, "timer_sys_ck", "sys_clkin_ck"), diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c index 19e543a32e2b..2e14dfb588f4 100644 --- a/drivers/clk/ti/clk-dra7-atl.c +++ b/drivers/clk/ti/clk-dra7-atl.c @@ -16,6 +16,7 @@ */ #include <linux/module.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/slab.h> #include <linux/io.h> diff --git a/drivers/clk/ti/clk.c b/drivers/clk/ti/clk.c index 64bb5e8a3b8c..b5bcd77e8d0f 100644 --- a/drivers/clk/ti/clk.c +++ b/drivers/clk/ti/clk.c @@ -15,12 +15,15 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/clk/ti.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/list.h> +#include <linux/regmap.h> +#include <linux/bootmem.h> #include "clock.h" @@ -30,6 +33,63 @@ struct ti_clk_ll_ops *ti_clk_ll_ops; static struct device_node *clocks_node_ptr[CLK_MAX_MEMMAPS]; +static struct ti_clk_features ti_clk_features; + +struct clk_iomap { + struct regmap *regmap; + void __iomem *mem; +}; + +static struct clk_iomap *clk_memmaps[CLK_MAX_MEMMAPS]; + +static void clk_memmap_writel(u32 val, void __iomem *reg) +{ + struct clk_omap_reg *r = (struct clk_omap_reg *)® + struct clk_iomap *io = clk_memmaps[r->index]; + + if (io->regmap) + regmap_write(io->regmap, r->offset, val); + else + writel_relaxed(val, io->mem + r->offset); +} + +static u32 clk_memmap_readl(void __iomem *reg) +{ + u32 val; + struct clk_omap_reg *r = (struct clk_omap_reg *)® + struct clk_iomap *io = clk_memmaps[r->index]; + + if (io->regmap) + regmap_read(io->regmap, r->offset, &val); + else + val = readl_relaxed(io->mem + r->offset); + + return val; +} + +/** + * ti_clk_setup_ll_ops - setup low level clock operations + * @ops: low level clock ops descriptor + * + * Sets up low level clock operations for TI clock driver. This is used + * to provide various callbacks for the clock driver towards platform + * specific code. Returns 0 on success, -EBUSY if ll_ops have been + * registered already. + */ +int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops) +{ + if (ti_clk_ll_ops) { + pr_err("Attempt to register ll_ops multiple times.\n"); + return -EBUSY; + } + + ti_clk_ll_ops = ops; + ops->clk_readl = clk_memmap_readl; + ops->clk_writel = clk_memmap_writel; + + return 0; +} + /** * ti_dt_clocks_register - register DT alias clocks during boot * @oclks: list of clocks to register @@ -134,32 +194,67 @@ void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index) reg->offset = val; - return (void __iomem *)tmp; + return (__force void __iomem *)tmp; } /** - * ti_dt_clk_init_provider - init master clock provider + * omap2_clk_provider_init - init master clock provider * @parent: master node * @index: internal index for clk_reg_ops + * @syscon: syscon regmap pointer for accessing clock registers + * @mem: iomem pointer for the clock provider memory area, only used if + * syscon is not provided * * Initializes a master clock IP block. This basically sets up the * mapping from clocks node to the memory map index. All the clocks * are then initialized through the common of_clk_init call, and the * clocks will access their memory maps based on the node layout. + * Returns 0 in success. */ -void ti_dt_clk_init_provider(struct device_node *parent, int index) +int __init omap2_clk_provider_init(struct device_node *parent, int index, + struct regmap *syscon, void __iomem *mem) { struct device_node *clocks; + struct clk_iomap *io; /* get clocks for this parent */ clocks = of_get_child_by_name(parent, "clocks"); if (!clocks) { pr_err("%s missing 'clocks' child node.\n", parent->name); - return; + return -EINVAL; } /* add clocks node info */ clocks_node_ptr[index] = clocks; + + io = kzalloc(sizeof(*io), GFP_KERNEL); + if (!io) + return -ENOMEM; + + io->regmap = syscon; + io->mem = mem; + + clk_memmaps[index] = io; + + return 0; +} + +/** + * omap2_clk_legacy_provider_init - initialize a legacy clock provider + * @index: index for the clock provider + * @mem: iomem pointer for the clock provider memory area + * + * Initializes a legacy clock provider memory mapping. + */ +void __init omap2_clk_legacy_provider_init(int index, void __iomem *mem) +{ + struct clk_iomap *io; + + io = memblock_virt_alloc(sizeof(*io), 0); + + io->mem = mem; + + clk_memmaps[index] = io; } /** @@ -244,11 +339,11 @@ struct clk __init *ti_clk_register_clk(struct ti_clk *setup) if (!IS_ERR(clk)) { setup->clk = clk; if (setup->clkdm_name) { - if (__clk_get_flags(clk) & CLK_IS_BASIC) { + clk_hw = __clk_get_hw(clk); + if (clk_hw_get_flags(clk_hw) & CLK_IS_BASIC) { pr_warn("can't setup clkdm for basic clk %s\n", setup->name); } else { - clk_hw = __clk_get_hw(clk); to_clk_hw_omap(clk_hw)->clkdm_name = setup->clkdm_name; omap2_init_clk_clkdm(clk_hw); @@ -311,3 +406,50 @@ int __init ti_clk_register_legacy_clks(struct ti_clk_alias *clks) return 0; } #endif + +/** + * ti_clk_setup_features - setup clock features flags + * @features: features definition to use + * + * Initializes the clock driver features flags based on platform + * provided data. No return value. + */ +void __init ti_clk_setup_features(struct ti_clk_features *features) +{ + memcpy(&ti_clk_features, features, sizeof(*features)); +} + +/** + * ti_clk_get_features - get clock driver features flags + * + * Get TI clock driver features description. Returns a pointer + * to the current feature setup. + */ +const struct ti_clk_features *ti_clk_get_features(void) +{ + return &ti_clk_features; +} + +/** + * omap2_clk_enable_init_clocks - prepare & enable a list of clocks + * @clk_names: ptr to an array of strings of clock names to enable + * @num_clocks: number of clock names in @clk_names + * + * Prepare and enable a list of clocks, named by @clk_names. No + * return value. XXX Deprecated; only needed until these clocks are + * properly claimed and enabled by the drivers or core code that uses + * them. XXX What code disables & calls clk_put on these clocks? + */ +void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks) +{ + struct clk *init_clk; + int i; + + for (i = 0; i < num_clocks; i++) { + init_clk = clk_get(NULL, clk_names[i]); + if (WARN(IS_ERR(init_clk), "could not find init clock %s\n", + clk_names[i])) + continue; + clk_prepare_enable(init_clk); + } +} diff --git a/drivers/clk/ti/clkt_dflt.c b/drivers/clk/ti/clkt_dflt.c new file mode 100644 index 000000000000..90d7d8a21c49 --- /dev/null +++ b/drivers/clk/ti/clkt_dflt.c @@ -0,0 +1,316 @@ +/* + * Default clock type + * + * Copyright (C) 2005-2008, 2015 Texas Instruments, Inc. + * Copyright (C) 2004-2010 Nokia Corporation + * + * Contacts: + * Richard Woodruff <r-woodruff2@ti.com> + * Paul Walmsley + * Tero Kristo <t-kristo@ti.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed "as is" WITHOUT ANY WARRANTY of any + * kind, whether express or implied; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/clk/ti.h> +#include <linux/delay.h> + +#include "clock.h" + +/* + * MAX_MODULE_ENABLE_WAIT: maximum of number of microseconds to wait + * for a module to indicate that it is no longer in idle + */ +#define MAX_MODULE_ENABLE_WAIT 100000 + +/* + * CM module register offsets, used for calculating the companion + * register addresses. + */ +#define CM_FCLKEN 0x0000 +#define CM_ICLKEN 0x0010 + +/** + * _wait_idlest_generic - wait for a module to leave the idle state + * @clk: module clock to wait for (needed for register offsets) + * @reg: virtual address of module IDLEST register + * @mask: value to mask against to determine if the module is active + * @idlest: idle state indicator (0 or 1) for the clock + * @name: name of the clock (for printk) + * + * Wait for a module to leave idle, where its idle-status register is + * not inside the CM module. Returns 1 if the module left idle + * promptly, or 0 if the module did not leave idle before the timeout + * elapsed. XXX Deprecated - should be moved into drivers for the + * individual IP block that the IDLEST register exists in. + */ +static int _wait_idlest_generic(struct clk_hw_omap *clk, void __iomem *reg, + u32 mask, u8 idlest, const char *name) +{ + int i = 0, ena = 0; + + ena = (idlest) ? 0 : mask; + + /* Wait until module enters enabled state */ + for (i = 0; i < MAX_MODULE_ENABLE_WAIT; i++) { + if ((ti_clk_ll_ops->clk_readl(reg) & mask) == ena) + break; + udelay(1); + } + + if (i < MAX_MODULE_ENABLE_WAIT) + pr_debug("omap clock: module associated with clock %s ready after %d loops\n", + name, i); + else + pr_err("omap clock: module associated with clock %s didn't enable in %d tries\n", + name, MAX_MODULE_ENABLE_WAIT); + + return (i < MAX_MODULE_ENABLE_WAIT) ? 1 : 0; +} + +/** + * _omap2_module_wait_ready - wait for an OMAP module to leave IDLE + * @clk: struct clk * belonging to the module + * + * If the necessary clocks for the OMAP hardware IP block that + * corresponds to clock @clk are enabled, then wait for the module to + * indicate readiness (i.e., to leave IDLE). This code does not + * belong in the clock code and will be moved in the medium term to + * module-dependent code. No return value. + */ +static void _omap2_module_wait_ready(struct clk_hw_omap *clk) +{ + void __iomem *companion_reg, *idlest_reg; + u8 other_bit, idlest_bit, idlest_val, idlest_reg_id; + s16 prcm_mod; + int r; + + /* Not all modules have multiple clocks that their IDLEST depends on */ + if (clk->ops->find_companion) { + clk->ops->find_companion(clk, &companion_reg, &other_bit); + if (!(ti_clk_ll_ops->clk_readl(companion_reg) & + (1 << other_bit))) + return; + } + + clk->ops->find_idlest(clk, &idlest_reg, &idlest_bit, &idlest_val); + r = ti_clk_ll_ops->cm_split_idlest_reg(idlest_reg, &prcm_mod, + &idlest_reg_id); + if (r) { + /* IDLEST register not in the CM module */ + _wait_idlest_generic(clk, idlest_reg, (1 << idlest_bit), + idlest_val, clk_hw_get_name(&clk->hw)); + } else { + ti_clk_ll_ops->cm_wait_module_ready(0, prcm_mod, idlest_reg_id, + idlest_bit); + } +} + +/** + * omap2_clk_dflt_find_companion - find companion clock to @clk + * @clk: struct clk * to find the companion clock of + * @other_reg: void __iomem ** to return the companion clock CM_*CLKEN va in + * @other_bit: u8 ** to return the companion clock bit shift in + * + * Note: We don't need special code here for INVERT_ENABLE for the + * time being since INVERT_ENABLE only applies to clocks enabled by + * CM_CLKEN_PLL + * + * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes it's + * just a matter of XORing the bits. + * + * Some clocks don't have companion clocks. For example, modules with + * only an interface clock (such as MAILBOXES) don't have a companion + * clock. Right now, this code relies on the hardware exporting a bit + * in the correct companion register that indicates that the + * nonexistent 'companion clock' is active. Future patches will + * associate this type of code with per-module data structures to + * avoid this issue, and remove the casts. No return value. + */ +void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk, + void __iomem **other_reg, u8 *other_bit) +{ + u32 r; + + /* + * Convert CM_ICLKEN* <-> CM_FCLKEN*. This conversion assumes + * it's just a matter of XORing the bits. + */ + r = ((__force u32)clk->enable_reg ^ (CM_FCLKEN ^ CM_ICLKEN)); + + *other_reg = (__force void __iomem *)r; + *other_bit = clk->enable_bit; +} + +/** + * omap2_clk_dflt_find_idlest - find CM_IDLEST reg va, bit shift for @clk + * @clk: struct clk * to find IDLEST info for + * @idlest_reg: void __iomem ** to return the CM_IDLEST va in + * @idlest_bit: u8 * to return the CM_IDLEST bit shift in + * @idlest_val: u8 * to return the idle status indicator + * + * Return the CM_IDLEST register address and bit shift corresponding + * to the module that "owns" this clock. This default code assumes + * that the CM_IDLEST bit shift is the CM_*CLKEN bit shift, and that + * the IDLEST register address ID corresponds to the CM_*CLKEN + * register address ID (e.g., that CM_FCLKEN2 corresponds to + * CM_IDLEST2). This is not true for all modules. No return value. + */ +void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk, + void __iomem **idlest_reg, u8 *idlest_bit, + u8 *idlest_val) +{ + u32 r; + + r = (((__force u32)clk->enable_reg & ~0xf0) | 0x20); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = clk->enable_bit; + + /* + * 24xx uses 0 to indicate not ready, and 1 to indicate ready. + * 34xx reverses this, just to keep us on our toes + * AM35xx uses both, depending on the module. + */ + *idlest_val = ti_clk_get_features()->cm_idlest_val; +} + +/** + * omap2_dflt_clk_enable - enable a clock in the hardware + * @hw: struct clk_hw * of the clock to enable + * + * Enable the clock @hw in the hardware. We first call into the OMAP + * clockdomain code to "enable" the corresponding clockdomain if this + * is the first enabled user of the clockdomain. Then program the + * hardware to enable the clock. Then wait for the IP block that uses + * this clock to leave idle (if applicable). Returns the error value + * from clkdm_clk_enable() if it terminated with an error, or -EINVAL + * if @hw has a null clock enable_reg, or zero upon success. + */ +int omap2_dflt_clk_enable(struct clk_hw *hw) +{ + struct clk_hw_omap *clk; + u32 v; + int ret = 0; + bool clkdm_control; + + if (ti_clk_get_features()->flags & TI_CLK_DISABLE_CLKDM_CONTROL) + clkdm_control = false; + else + clkdm_control = true; + + clk = to_clk_hw_omap(hw); + + if (clkdm_control && clk->clkdm) { + ret = ti_clk_ll_ops->clkdm_clk_enable(clk->clkdm, hw->clk); + if (ret) { + WARN(1, + "%s: could not enable %s's clockdomain %s: %d\n", + __func__, clk_hw_get_name(hw), + clk->clkdm_name, ret); + return ret; + } + } + + if (unlikely(!clk->enable_reg)) { + pr_err("%s: %s missing enable_reg\n", __func__, + clk_hw_get_name(hw)); + ret = -EINVAL; + goto err; + } + + /* FIXME should not have INVERT_ENABLE bit here */ + v = ti_clk_ll_ops->clk_readl(clk->enable_reg); + if (clk->flags & INVERT_ENABLE) + v &= ~(1 << clk->enable_bit); + else + v |= (1 << clk->enable_bit); + ti_clk_ll_ops->clk_writel(v, clk->enable_reg); + v = ti_clk_ll_ops->clk_readl(clk->enable_reg); /* OCP barrier */ + + if (clk->ops && clk->ops->find_idlest) + _omap2_module_wait_ready(clk); + + return 0; + +err: + if (clkdm_control && clk->clkdm) + ti_clk_ll_ops->clkdm_clk_disable(clk->clkdm, hw->clk); + return ret; +} + +/** + * omap2_dflt_clk_disable - disable a clock in the hardware + * @hw: struct clk_hw * of the clock to disable + * + * Disable the clock @hw in the hardware, and call into the OMAP + * clockdomain code to "disable" the corresponding clockdomain if all + * clocks/hwmods in that clockdomain are now disabled. No return + * value. + */ +void omap2_dflt_clk_disable(struct clk_hw *hw) +{ + struct clk_hw_omap *clk; + u32 v; + + clk = to_clk_hw_omap(hw); + if (!clk->enable_reg) { + /* + * 'independent' here refers to a clock which is not + * controlled by its parent. + */ + pr_err("%s: independent clock %s has no enable_reg\n", + __func__, clk_hw_get_name(hw)); + return; + } + + v = ti_clk_ll_ops->clk_readl(clk->enable_reg); + if (clk->flags & INVERT_ENABLE) + v |= (1 << clk->enable_bit); + else + v &= ~(1 << clk->enable_bit); + ti_clk_ll_ops->clk_writel(v, clk->enable_reg); + /* No OCP barrier needed here since it is a disable operation */ + + if (!(ti_clk_get_features()->flags & TI_CLK_DISABLE_CLKDM_CONTROL) && + clk->clkdm) + ti_clk_ll_ops->clkdm_clk_disable(clk->clkdm, hw->clk); +} + +/** + * omap2_dflt_clk_is_enabled - is clock enabled in the hardware? + * @hw: struct clk_hw * to check + * + * Return 1 if the clock represented by @hw is enabled in the + * hardware, or 0 otherwise. Intended for use in the struct + * clk_ops.is_enabled function pointer. + */ +int omap2_dflt_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_hw_omap *clk = to_clk_hw_omap(hw); + u32 v; + + v = ti_clk_ll_ops->clk_readl(clk->enable_reg); + + if (clk->flags & INVERT_ENABLE) + v ^= BIT(clk->enable_bit); + + v &= BIT(clk->enable_bit); + + return v ? 1 : 0; +} + +const struct clk_hw_omap_ops clkhwops_wait = { + .find_idlest = omap2_clk_dflt_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; diff --git a/arch/arm/mach-omap2/clkt_dpll.c b/drivers/clk/ti/clkt_dpll.c index f251a14cbf16..9023ca9caf84 100644 --- a/arch/arm/mach-omap2/clkt_dpll.c +++ b/drivers/clk/ti/clkt_dpll.c @@ -16,8 +16,10 @@ #include <linux/kernel.h> #include <linux/errno.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/io.h> +#include <linux/clk/ti.h> #include <asm/div64.h> @@ -74,14 +76,14 @@ static int _dpll_test_fint(struct clk_hw_omap *clk, unsigned int n) dd = clk->dpll_data; /* DPLL divider must result in a valid jitter correction val */ - fint = __clk_get_rate(__clk_get_parent(clk->hw.clk)) / n; + fint = clk_hw_get_rate(clk_hw_get_parent(&clk->hw)) / n; if (dd->flags & DPLL_J_TYPE) { fint_min = OMAP3PLUS_DPLL_FINT_JTYPE_MIN; fint_max = OMAP3PLUS_DPLL_FINT_JTYPE_MAX; } else { - fint_min = ti_clk_features.fint_min; - fint_max = ti_clk_features.fint_max; + fint_min = ti_clk_get_features()->fint_min; + fint_max = ti_clk_get_features()->fint_max; } if (!fint_min || !fint_max) { @@ -89,18 +91,18 @@ static int _dpll_test_fint(struct clk_hw_omap *clk, unsigned int n) return DPLL_FINT_INVALID; } - if (fint < ti_clk_features.fint_min) { + if (fint < ti_clk_get_features()->fint_min) { pr_debug("rejecting n=%d due to Fint failure, lowering max_divider\n", n); dd->max_divider = n; ret = DPLL_FINT_UNDERFLOW; - } else if (fint > ti_clk_features.fint_max) { + } else if (fint > ti_clk_get_features()->fint_max) { pr_debug("rejecting n=%d due to Fint failure, boosting min_divider\n", n); dd->min_divider = n; ret = DPLL_FINT_INVALID; - } else if (fint > ti_clk_features.fint_band1_max && - fint < ti_clk_features.fint_band2_min) { + } else if (fint > ti_clk_get_features()->fint_band1_max && + fint < ti_clk_get_features()->fint_band2_min) { pr_debug("rejecting n=%d due to Fint failure\n", n); ret = DPLL_FINT_INVALID; } @@ -183,7 +185,7 @@ static int _omap2_dpll_is_in_bypass(u32 v) { u8 mask, val; - mask = ti_clk_features.dpll_bypass_vals; + mask = ti_clk_get_features()->dpll_bypass_vals; /* * Each set bit in the mask corresponds to a bypass value equal @@ -211,7 +213,7 @@ u8 omap2_init_dpll_parent(struct clk_hw *hw) if (!dd) return -EINVAL; - v = omap2_clk_readl(clk, dd->control_reg); + v = ti_clk_ll_ops->clk_readl(dd->control_reg); v &= dd->enable_mask; v >>= __ffs(dd->enable_mask); @@ -247,20 +249,20 @@ unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk) return 0; /* Return bypass rate if DPLL is bypassed */ - v = omap2_clk_readl(clk, dd->control_reg); + v = ti_clk_ll_ops->clk_readl(dd->control_reg); v &= dd->enable_mask; v >>= __ffs(dd->enable_mask); if (_omap2_dpll_is_in_bypass(v)) - return __clk_get_rate(dd->clk_bypass); + return clk_get_rate(dd->clk_bypass); - v = omap2_clk_readl(clk, dd->mult_div1_reg); + v = ti_clk_ll_ops->clk_readl(dd->mult_div1_reg); dpll_mult = v & dd->mult_mask; dpll_mult >>= __ffs(dd->mult_mask); dpll_div = v & dd->div1_mask; dpll_div >>= __ffs(dd->div1_mask); - dpll_clk = (long long) __clk_get_rate(dd->clk_ref) * dpll_mult; + dpll_clk = (long long)clk_get_rate(dd->clk_ref) * dpll_mult; do_div(dpll_clk, dpll_div + 1); return dpll_clk; @@ -281,7 +283,7 @@ unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk) * be rounded, or the rounded rate upon success. */ long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate, - unsigned long *parent_rate) + unsigned long *parent_rate) { struct clk_hw_omap *clk = to_clk_hw_omap(hw); int m, n, r, scaled_max_m; @@ -299,8 +301,8 @@ long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate, dd = clk->dpll_data; - ref_rate = __clk_get_rate(dd->clk_ref); - clk_name = __clk_get_name(hw->clk); + ref_rate = clk_get_rate(dd->clk_ref); + clk_name = clk_hw_get_name(hw); pr_debug("clock: %s: starting DPLL round_rate, target rate %lu\n", clk_name, target_rate); @@ -310,7 +312,6 @@ long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate, dd->last_rounded_rate = 0; for (n = dd->min_divider; n <= dd->max_divider; n++) { - /* Is the (input clk, divider) pair valid for the DPLL? */ r = _dpll_test_fint(clk, n); if (r == DPLL_FINT_UNDERFLOW) @@ -367,4 +368,3 @@ long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate, return dd->last_rounded_rate; } - diff --git a/drivers/clk/ti/clkt_iclk.c b/drivers/clk/ti/clkt_iclk.c new file mode 100644 index 000000000000..38c36908cf88 --- /dev/null +++ b/drivers/clk/ti/clkt_iclk.c @@ -0,0 +1,101 @@ +/* + * OMAP2/3 interface clock control + * + * Copyright (C) 2011 Nokia Corporation + * Paul Walmsley + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#undef DEBUG + +#include <linux/kernel.h> +#include <linux/clk-provider.h> +#include <linux/io.h> +#include <linux/clk/ti.h> + +#include "clock.h" + +/* Register offsets */ +#define OMAP24XX_CM_FCLKEN2 0x04 +#define CM_AUTOIDLE 0x30 +#define CM_ICLKEN 0x10 +#define CM_IDLEST 0x20 + +#define OMAP24XX_CM_IDLEST_VAL 0 + +/* Private functions */ + +/* XXX */ +void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk) +{ + u32 v; + void __iomem *r; + + r = (__force void __iomem *) + ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); + + v = ti_clk_ll_ops->clk_readl(r); + v |= (1 << clk->enable_bit); + ti_clk_ll_ops->clk_writel(v, r); +} + +/* XXX */ +void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk) +{ + u32 v; + void __iomem *r; + + r = (__force void __iomem *) + ((__force u32)clk->enable_reg ^ (CM_AUTOIDLE ^ CM_ICLKEN)); + + v = ti_clk_ll_ops->clk_readl(r); + v &= ~(1 << clk->enable_bit); + ti_clk_ll_ops->clk_writel(v, r); +} + +/** + * omap2430_clk_i2chs_find_idlest - return CM_IDLEST info for 2430 I2CHS + * @clk: struct clk * being enabled + * @idlest_reg: void __iomem ** to store CM_IDLEST reg address into + * @idlest_bit: pointer to a u8 to store the CM_IDLEST bit shift into + * @idlest_val: pointer to a u8 to store the CM_IDLEST indicator + * + * OMAP2430 I2CHS CM_IDLEST bits are in CM_IDLEST1_CORE, but the + * CM_*CLKEN bits are in CM_{I,F}CLKEN2_CORE. This custom function + * passes back the correct CM_IDLEST register address for I2CHS + * modules. No return value. + */ +static void omap2430_clk_i2chs_find_idlest(struct clk_hw_omap *clk, + void __iomem **idlest_reg, + u8 *idlest_bit, + u8 *idlest_val) +{ + u32 r; + + r = ((__force u32)clk->enable_reg ^ (OMAP24XX_CM_FCLKEN2 ^ CM_IDLEST)); + *idlest_reg = (__force void __iomem *)r; + *idlest_bit = clk->enable_bit; + *idlest_val = OMAP24XX_CM_IDLEST_VAL; +} + +/* Public data */ + +const struct clk_hw_omap_ops clkhwops_iclk = { + .allow_idle = omap2_clkt_iclk_allow_idle, + .deny_idle = omap2_clkt_iclk_deny_idle, +}; + +const struct clk_hw_omap_ops clkhwops_iclk_wait = { + .allow_idle = omap2_clkt_iclk_allow_idle, + .deny_idle = omap2_clkt_iclk_deny_idle, + .find_idlest = omap2_clk_dflt_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; + +/* 2430 I2CHS has non-standard IDLEST register */ +const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait = { + .find_idlest = omap2430_clk_i2chs_find_idlest, + .find_companion = omap2_clk_dflt_find_companion, +}; diff --git a/drivers/clk/ti/clock.h b/drivers/clk/ti/clock.h index 404158d2d7f8..90f3f472ae1c 100644 --- a/drivers/clk/ti/clock.h +++ b/drivers/clk/ti/clock.h @@ -154,6 +154,35 @@ struct ti_clk_dpll { u8 recal_st_bit; }; +/* Composite clock component types */ +enum { + CLK_COMPONENT_TYPE_GATE = 0, + CLK_COMPONENT_TYPE_DIVIDER, + CLK_COMPONENT_TYPE_MUX, + CLK_COMPONENT_TYPE_MAX, +}; + +/** + * struct ti_dt_clk - OMAP DT clock alias declarations + * @lk: clock lookup definition + * @node_name: clock DT node to map to + */ +struct ti_dt_clk { + struct clk_lookup lk; + char *node_name; +}; + +#define DT_CLK(dev, con, name) \ + { \ + .lk = { \ + .dev_id = dev, \ + .con_id = con, \ + }, \ + .node_name = name, \ + } + +typedef void (*ti_of_clk_init_cb_t)(struct clk_hw *, struct device_node *); + struct clk *ti_clk_register_gate(struct ti_clk *setup); struct clk *ti_clk_register_interface(struct ti_clk *setup); struct clk *ti_clk_register_mux(struct ti_clk *setup); @@ -169,4 +198,80 @@ void ti_clk_patch_legacy_clks(struct ti_clk **patch); struct clk *ti_clk_register_clk(struct ti_clk *setup); int ti_clk_register_legacy_clks(struct ti_clk_alias *clks); +void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index); +void ti_dt_clocks_register(struct ti_dt_clk *oclks); +int ti_clk_retry_init(struct device_node *node, struct clk_hw *hw, + ti_of_clk_init_cb_t func); +int ti_clk_add_component(struct device_node *node, struct clk_hw *hw, int type); + +void omap2_init_clk_hw_omap_clocks(struct clk_hw *hw); +int of_ti_clk_autoidle_setup(struct device_node *node); +void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks); + +extern const struct clk_hw_omap_ops clkhwops_omap3_dpll; +extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx; +extern const struct clk_hw_omap_ops clkhwops_wait; +extern const struct clk_hw_omap_ops clkhwops_iclk; +extern const struct clk_hw_omap_ops clkhwops_iclk_wait; +extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait; +extern const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait; +extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait; +extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait; +extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait; +extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait; +extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_wait; + +extern const struct clk_ops ti_clk_divider_ops; +extern const struct clk_ops ti_clk_mux_ops; + +int omap2_clkops_enable_clkdm(struct clk_hw *hw); +void omap2_clkops_disable_clkdm(struct clk_hw *hw); + +int omap2_dflt_clk_enable(struct clk_hw *hw); +void omap2_dflt_clk_disable(struct clk_hw *hw); +int omap2_dflt_clk_is_enabled(struct clk_hw *hw); +void omap2_clk_dflt_find_companion(struct clk_hw_omap *clk, + void __iomem **other_reg, + u8 *other_bit); +void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk, + void __iomem **idlest_reg, + u8 *idlest_bit, u8 *idlest_val); + +void omap2_clkt_iclk_allow_idle(struct clk_hw_omap *clk); +void omap2_clkt_iclk_deny_idle(struct clk_hw_omap *clk); + +u8 omap2_init_dpll_parent(struct clk_hw *hw); +int omap3_noncore_dpll_enable(struct clk_hw *hw); +void omap3_noncore_dpll_disable(struct clk_hw *hw); +int omap3_noncore_dpll_set_parent(struct clk_hw *hw, u8 index); +int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate); +int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw, + unsigned long rate, + unsigned long parent_rate, + u8 index); +int omap3_noncore_dpll_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req); +long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate, + unsigned long *parent_rate); +unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw, + unsigned long parent_rate); + +unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate); +int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate, + unsigned long parent_rate); +int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate, u8 index); +void omap3_clk_lock_dpll5(void); + +unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw, + unsigned long parent_rate); +long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw, + unsigned long target_rate, + unsigned long *parent_rate); +int omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req); + +extern struct ti_clk_ll_ops *ti_clk_ll_ops; + #endif diff --git a/drivers/clk/ti/clockdomain.c b/drivers/clk/ti/clockdomain.c index b82ef07f3403..b9bc3b8df659 100644 --- a/drivers/clk/ti/clockdomain.c +++ b/drivers/clk/ti/clockdomain.c @@ -15,15 +15,94 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/slab.h> #include <linux/of.h> #include <linux/of_address.h> #include <linux/clk/ti.h> +#include "clock.h" + #undef pr_fmt #define pr_fmt(fmt) "%s: " fmt, __func__ +/** + * omap2_clkops_enable_clkdm - increment usecount on clkdm of @hw + * @hw: struct clk_hw * of the clock being enabled + * + * Increment the usecount of the clockdomain of the clock pointed to + * by @hw; if the usecount is 1, the clockdomain will be "enabled." + * Only needed for clocks that don't use omap2_dflt_clk_enable() as + * their enable function pointer. Passes along the return value of + * clkdm_clk_enable(), -EINVAL if @hw is not associated with a + * clockdomain, or 0 if clock framework-based clockdomain control is + * not implemented. + */ +int omap2_clkops_enable_clkdm(struct clk_hw *hw) +{ + struct clk_hw_omap *clk; + int ret = 0; + + clk = to_clk_hw_omap(hw); + + if (unlikely(!clk->clkdm)) { + pr_err("%s: %s: no clkdm set ?!\n", __func__, + clk_hw_get_name(hw)); + return -EINVAL; + } + + if (unlikely(clk->enable_reg)) + pr_err("%s: %s: should use dflt_clk_enable ?!\n", __func__, + clk_hw_get_name(hw)); + + if (ti_clk_get_features()->flags & TI_CLK_DISABLE_CLKDM_CONTROL) { + pr_err("%s: %s: clkfw-based clockdomain control disabled ?!\n", + __func__, clk_hw_get_name(hw)); + return 0; + } + + ret = ti_clk_ll_ops->clkdm_clk_enable(clk->clkdm, hw->clk); + WARN(ret, "%s: could not enable %s's clockdomain %s: %d\n", + __func__, clk_hw_get_name(hw), clk->clkdm_name, ret); + + return ret; +} + +/** + * omap2_clkops_disable_clkdm - decrement usecount on clkdm of @hw + * @hw: struct clk_hw * of the clock being disabled + * + * Decrement the usecount of the clockdomain of the clock pointed to + * by @hw; if the usecount is 0, the clockdomain will be "disabled." + * Only needed for clocks that don't use omap2_dflt_clk_disable() as their + * disable function pointer. No return value. + */ +void omap2_clkops_disable_clkdm(struct clk_hw *hw) +{ + struct clk_hw_omap *clk; + + clk = to_clk_hw_omap(hw); + + if (unlikely(!clk->clkdm)) { + pr_err("%s: %s: no clkdm set ?!\n", __func__, + clk_hw_get_name(hw)); + return; + } + + if (unlikely(clk->enable_reg)) + pr_err("%s: %s: should use dflt_clk_disable ?!\n", __func__, + clk_hw_get_name(hw)); + + if (ti_clk_get_features()->flags & TI_CLK_DISABLE_CLKDM_CONTROL) { + pr_err("%s: %s: clkfw-based clockdomain control disabled ?!\n", + __func__, clk_hw_get_name(hw)); + return; + } + + ti_clk_ll_ops->clkdm_clk_disable(clk->clkdm, hw->clk); +} + static void __init of_ti_clockdomain_setup(struct device_node *node) { struct clk *clk; @@ -41,12 +120,12 @@ static void __init of_ti_clockdomain_setup(struct device_node *node) __func__, node->full_name, i, PTR_ERR(clk)); continue; } - if (__clk_get_flags(clk) & CLK_IS_BASIC) { + clk_hw = __clk_get_hw(clk); + if (clk_hw_get_flags(clk_hw) & CLK_IS_BASIC) { pr_warn("can't setup clkdm for basic clk %s\n", __clk_get_name(clk)); continue; } - clk_hw = __clk_get_hw(clk); to_clk_hw_omap(clk_hw)->clkdm_name = clkdm_name; omap2_init_clk_clkdm(clk_hw); } diff --git a/drivers/clk/ti/composite.c b/drivers/clk/ti/composite.c index 96f83cedb4b3..dbef218fe5ec 100644 --- a/drivers/clk/ti/composite.c +++ b/drivers/clk/ti/composite.c @@ -276,7 +276,6 @@ int __init ti_clk_add_component(struct device_node *node, struct clk_hw *hw, int num_parents; const char **parent_names; struct component_clk *clk; - int i; num_parents = of_clk_get_parent_count(node); @@ -289,8 +288,7 @@ int __init ti_clk_add_component(struct device_node *node, struct clk_hw *hw, if (!parent_names) return -ENOMEM; - for (i = 0; i < num_parents; i++) - parent_names[i] = of_clk_get_parent_name(node, i); + of_clk_parent_fill(node, parent_names, num_parents); clk = kzalloc(sizeof(*clk), GFP_KERNEL); if (!clk) { diff --git a/drivers/clk/ti/divider.c b/drivers/clk/ti/divider.c index ff5f117950a9..5b1726829e6d 100644 --- a/drivers/clk/ti/divider.c +++ b/drivers/clk/ti/divider.c @@ -109,7 +109,7 @@ static unsigned long ti_clk_divider_recalc_rate(struct clk_hw *hw, if (!div) { WARN(!(divider->flags & CLK_DIVIDER_ALLOW_ZERO), "%s: Zero divisor and CLK_DIVIDER_ALLOW_ZERO not set\n", - __clk_get_name(hw->clk)); + clk_hw_get_name(hw)); return parent_rate; } @@ -155,7 +155,7 @@ static int ti_clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, maxdiv = _get_maxdiv(divider); - if (!(__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT)) { + if (!(clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT)) { parent_rate = *best_parent_rate; bestdiv = DIV_ROUND_UP(parent_rate, rate); bestdiv = bestdiv == 0 ? 1 : bestdiv; @@ -181,7 +181,7 @@ static int ti_clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, *best_parent_rate = parent_rate_saved; return i; } - parent_rate = __clk_round_rate(__clk_get_parent(hw->clk), + parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), MULT_ROUND_UP(rate, i)); now = DIV_ROUND_UP(parent_rate, i); if (now <= rate && now > best) { @@ -194,7 +194,7 @@ static int ti_clk_divider_bestdiv(struct clk_hw *hw, unsigned long rate, if (!bestdiv) { bestdiv = _get_maxdiv(divider); *best_parent_rate = - __clk_round_rate(__clk_get_parent(hw->clk), 1); + clk_hw_round_rate(clk_hw_get_parent(hw), 1); } return bestdiv; diff --git a/drivers/clk/ti/dpll.c b/drivers/clk/ti/dpll.c index 2aacf7a3bcae..5519b386edc0 100644 --- a/drivers/clk/ti/dpll.c +++ b/drivers/clk/ti/dpll.c @@ -15,6 +15,7 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/slab.h> #include <linux/err.h> @@ -162,7 +163,7 @@ static void __init _register_dpll(struct clk_hw *hw, clk = clk_register(NULL, &clk_hw->hw); if (!IS_ERR(clk)) { - omap2_init_clk_hw_omap_clocks(clk); + omap2_init_clk_hw_omap_clocks(&clk_hw->hw); of_clk_add_provider(node, of_clk_src_simple_get, clk); kfree(clk_hw->hw.init->parent_names); kfree(clk_hw->hw.init); @@ -319,7 +320,7 @@ static void _register_dpll_x2(struct device_node *node, if (IS_ERR(clk)) { kfree(clk_hw); } else { - omap2_init_clk_hw_omap_clocks(clk); + omap2_init_clk_hw_omap_clocks(&clk_hw->hw); of_clk_add_provider(node, of_clk_src_simple_get, clk); } } @@ -341,7 +342,6 @@ static void __init of_ti_dpll_setup(struct device_node *node, struct clk_init_data *init = NULL; const char **parent_names = NULL; struct dpll_data *dd = NULL; - int i; u8 dpll_mode = 0; dd = kzalloc(sizeof(*dd), GFP_KERNEL); @@ -370,8 +370,7 @@ static void __init of_ti_dpll_setup(struct device_node *node, if (!parent_names) goto cleanup; - for (i = 0; i < init->num_parents; i++) - parent_names[i] = of_clk_get_parent_name(node, i); + of_clk_parent_fill(node, parent_names, init->num_parents); init->parent_names = parent_names; diff --git a/arch/arm/mach-omap2/dpll3xxx.c b/drivers/clk/ti/dpll3xxx.c index 44e57ec225d4..f4dec00fb684 100644 --- a/arch/arm/mach-omap2/dpll3xxx.c +++ b/drivers/clk/ti/dpll3xxx.c @@ -27,8 +27,8 @@ #include <linux/io.h> #include <linux/bitops.h> #include <linux/clkdev.h> +#include <linux/clk/ti.h> -#include "clockdomain.h" #include "clock.h" /* CM_AUTOIDLE_PLL*.AUTO_* bit values */ @@ -37,6 +37,13 @@ #define MAX_DPLL_WAIT_TRIES 1000000 +#define OMAP3XXX_EN_DPLL_LOCKED 0x7 + +/* Forward declarations */ +static u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk); +static void omap3_dpll_deny_idle(struct clk_hw_omap *clk); +static void omap3_dpll_allow_idle(struct clk_hw_omap *clk); + /* Private functions */ /* _omap3_dpll_write_clken - write clken_bits arg to a DPLL's enable bits */ @@ -47,10 +54,10 @@ static void _omap3_dpll_write_clken(struct clk_hw_omap *clk, u8 clken_bits) dd = clk->dpll_data; - v = omap2_clk_readl(clk, dd->control_reg); + v = ti_clk_ll_ops->clk_readl(dd->control_reg); v &= ~dd->enable_mask; v |= clken_bits << __ffs(dd->enable_mask); - omap2_clk_writel(v, clk, dd->control_reg); + ti_clk_ll_ops->clk_writel(v, dd->control_reg); } /* _omap3_wait_dpll_status: wait for a DPLL to enter a specific state */ @@ -62,18 +69,18 @@ static int _omap3_wait_dpll_status(struct clk_hw_omap *clk, u8 state) const char *clk_name; dd = clk->dpll_data; - clk_name = __clk_get_name(clk->hw.clk); + clk_name = clk_hw_get_name(&clk->hw); state <<= __ffs(dd->idlest_mask); - while (((omap2_clk_readl(clk, dd->idlest_reg) & dd->idlest_mask) + while (((ti_clk_ll_ops->clk_readl(dd->idlest_reg) & dd->idlest_mask) != state) && i < MAX_DPLL_WAIT_TRIES) { i++; udelay(1); } if (i == MAX_DPLL_WAIT_TRIES) { - printk(KERN_ERR "clock: %s failed transition to '%s'\n", + pr_err("clock: %s failed transition to '%s'\n", clk_name, (state) ? "locked" : "bypassed"); } else { pr_debug("clock: %s transition to '%s' in %d loops\n", @@ -91,7 +98,7 @@ static u16 _omap3_dpll_compute_freqsel(struct clk_hw_omap *clk, u8 n) unsigned long fint; u16 f = 0; - fint = __clk_get_rate(clk->dpll_data->clk_ref) / n; + fint = clk_get_rate(clk->dpll_data->clk_ref) / n; pr_debug("clock: fint is %lu\n", fint); @@ -138,13 +145,14 @@ static int _omap3_noncore_dpll_lock(struct clk_hw_omap *clk) u8 state = 1; int r = 0; - pr_debug("clock: locking DPLL %s\n", __clk_get_name(clk->hw.clk)); + pr_debug("clock: locking DPLL %s\n", clk_hw_get_name(&clk->hw)); dd = clk->dpll_data; state <<= __ffs(dd->idlest_mask); /* Check if already locked */ - if ((omap2_clk_readl(clk, dd->idlest_reg) & dd->idlest_mask) == state) + if ((ti_clk_ll_ops->clk_readl(dd->idlest_reg) & dd->idlest_mask) == + state) goto done; ai = omap3_dpll_autoidle_read(clk); @@ -185,7 +193,7 @@ static int _omap3_noncore_dpll_bypass(struct clk_hw_omap *clk) return -EINVAL; pr_debug("clock: configuring DPLL %s for low-power bypass\n", - __clk_get_name(clk->hw.clk)); + clk_hw_get_name(&clk->hw)); ai = omap3_dpll_autoidle_read(clk); @@ -215,7 +223,7 @@ static int _omap3_noncore_dpll_stop(struct clk_hw_omap *clk) if (!(clk->dpll_data->modes & (1 << DPLL_LOW_POWER_STOP))) return -EINVAL; - pr_debug("clock: stopping DPLL %s\n", __clk_get_name(clk->hw.clk)); + pr_debug("clock: stopping DPLL %s\n", clk_hw_get_name(&clk->hw)); ai = omap3_dpll_autoidle_read(clk); @@ -243,7 +251,7 @@ static void _lookup_dco(struct clk_hw_omap *clk, u8 *dco, u16 m, u8 n) { unsigned long fint, clkinp; /* watch out for overflow */ - clkinp = __clk_get_rate(__clk_get_parent(clk->hw.clk)); + clkinp = clk_hw_get_rate(clk_hw_get_parent(&clk->hw)); fint = (clkinp / n) * m; if (fint < 1000000000) @@ -269,7 +277,7 @@ static void _lookup_sddiv(struct clk_hw_omap *clk, u8 *sd_div, u16 m, u8 n) unsigned long clkinp, sd; /* watch out for overflow */ int mod1, mod2; - clkinp = __clk_get_rate(__clk_get_parent(clk->hw.clk)); + clkinp = clk_hw_get_rate(clk_hw_get_parent(&clk->hw)); /* * target sigma-delta to near 250MHz @@ -307,15 +315,15 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel) * Set jitter correction. Jitter correction applicable for OMAP343X * only since freqsel field is no longer present on other devices. */ - if (ti_clk_features.flags & TI_CLK_DPLL_HAS_FREQSEL) { - v = omap2_clk_readl(clk, dd->control_reg); + if (ti_clk_get_features()->flags & TI_CLK_DPLL_HAS_FREQSEL) { + v = ti_clk_ll_ops->clk_readl(dd->control_reg); v &= ~dd->freqsel_mask; v |= freqsel << __ffs(dd->freqsel_mask); - omap2_clk_writel(v, clk, dd->control_reg); + ti_clk_ll_ops->clk_writel(v, dd->control_reg); } /* Set DPLL multiplier, divider */ - v = omap2_clk_readl(clk, dd->mult_div1_reg); + v = ti_clk_ll_ops->clk_readl(dd->mult_div1_reg); /* Handle Duty Cycle Correction */ if (dd->dcc_mask) { @@ -342,11 +350,11 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel) v |= sd_div << __ffs(dd->sddiv_mask); } - omap2_clk_writel(v, clk, dd->mult_div1_reg); + ti_clk_ll_ops->clk_writel(v, dd->mult_div1_reg); /* Set 4X multiplier and low-power mode */ if (dd->m4xen_mask || dd->lpmode_mask) { - v = omap2_clk_readl(clk, dd->control_reg); + v = ti_clk_ll_ops->clk_readl(dd->control_reg); if (dd->m4xen_mask) { if (dd->last_rounded_m4xen) @@ -362,7 +370,7 @@ static int omap3_noncore_dpll_program(struct clk_hw_omap *clk, u16 freqsel) v &= ~dd->lpmode_mask; } - omap2_clk_writel(v, clk, dd->control_reg); + ti_clk_ll_ops->clk_writel(v, dd->control_reg); } /* We let the clock framework set the other output dividers later */ @@ -417,19 +425,19 @@ int omap3_noncore_dpll_enable(struct clk_hw *hw) return -EINVAL; if (clk->clkdm) { - r = clkdm_clk_enable(clk->clkdm, hw->clk); + r = ti_clk_ll_ops->clkdm_clk_enable(clk->clkdm, hw->clk); if (r) { WARN(1, "%s: could not enable %s's clockdomain %s: %d\n", - __func__, __clk_get_name(hw->clk), - clk->clkdm->name, r); + __func__, clk_hw_get_name(hw), + clk->clkdm_name, r); return r; } } - parent = __clk_get_hw(__clk_get_parent(hw->clk)); + parent = clk_hw_get_parent(hw); - if (__clk_get_rate(hw->clk) == __clk_get_rate(dd->clk_bypass)) { + if (clk_hw_get_rate(hw) == clk_get_rate(dd->clk_bypass)) { WARN_ON(parent != __clk_get_hw(dd->clk_bypass)); r = _omap3_noncore_dpll_bypass(clk); } else { @@ -453,52 +461,46 @@ void omap3_noncore_dpll_disable(struct clk_hw *hw) _omap3_noncore_dpll_stop(clk); if (clk->clkdm) - clkdm_clk_disable(clk->clkdm, hw->clk); + ti_clk_ll_ops->clkdm_clk_disable(clk->clkdm, hw->clk); } - /* Non-CORE DPLL rate set code */ /** * omap3_noncore_dpll_determine_rate - determine rate for a DPLL * @hw: pointer to the clock to determine rate for - * @rate: target rate for the DPLL - * @best_parent_rate: pointer for returning best parent rate - * @best_parent_clk: pointer for returning best parent clock + * @req: target rate request * * Determines which DPLL mode to use for reaching a desired target rate. * Checks whether the DPLL shall be in bypass or locked mode, and if * locked, calculates the M,N values for the DPLL via round-rate. - * Returns a positive clock rate with success, negative error value - * in failure. + * Returns a 0 on success, negative error value in failure. */ -long omap3_noncore_dpll_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk) +int omap3_noncore_dpll_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_hw_omap *clk = to_clk_hw_omap(hw); struct dpll_data *dd; - if (!hw || !rate) + if (!req->rate) return -EINVAL; dd = clk->dpll_data; if (!dd) return -EINVAL; - if (__clk_get_rate(dd->clk_bypass) == rate && + if (clk_get_rate(dd->clk_bypass) == req->rate && (dd->modes & (1 << DPLL_LOW_POWER_BYPASS))) { - *best_parent_clk = __clk_get_hw(dd->clk_bypass); + req->best_parent_hw = __clk_get_hw(dd->clk_bypass); } else { - rate = omap2_dpll_round_rate(hw, rate, best_parent_rate); - *best_parent_clk = __clk_get_hw(dd->clk_ref); + req->rate = omap2_dpll_round_rate(hw, req->rate, + &req->best_parent_rate); + req->best_parent_hw = __clk_get_hw(dd->clk_ref); } - *best_parent_rate = rate; + req->best_parent_rate = req->rate; - return rate; + return 0; } /** @@ -551,21 +553,20 @@ int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate, if (!dd) return -EINVAL; - if (__clk_get_hw(__clk_get_parent(hw->clk)) != - __clk_get_hw(dd->clk_ref)) + if (clk_hw_get_parent(hw) != __clk_get_hw(dd->clk_ref)) return -EINVAL; if (dd->last_rounded_rate == 0) return -EINVAL; /* Freqsel is available only on OMAP343X devices */ - if (ti_clk_features.flags & TI_CLK_DPLL_HAS_FREQSEL) { + if (ti_clk_get_features()->flags & TI_CLK_DPLL_HAS_FREQSEL) { freqsel = _omap3_dpll_compute_freqsel(clk, dd->last_rounded_n); WARN_ON(!freqsel); } pr_debug("%s: %s: set rate: locking rate to %lu.\n", __func__, - __clk_get_name(hw->clk), rate); + clk_hw_get_name(hw), rate); ret = omap3_noncore_dpll_program(clk, freqsel); @@ -618,7 +619,7 @@ int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw, * -EINVAL if passed a null pointer or if the struct clk does not * appear to refer to a DPLL. */ -u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk) +static u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk) { const struct dpll_data *dd; u32 v; @@ -631,7 +632,7 @@ u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk) if (!dd->autoidle_reg) return -EINVAL; - v = omap2_clk_readl(clk, dd->autoidle_reg); + v = ti_clk_ll_ops->clk_readl(dd->autoidle_reg); v &= dd->autoidle_mask; v >>= __ffs(dd->autoidle_mask); @@ -647,7 +648,7 @@ u32 omap3_dpll_autoidle_read(struct clk_hw_omap *clk) * OMAP3430. The DPLL will enter low-power stop when its downstream * clocks are gated. No return value. */ -void omap3_dpll_allow_idle(struct clk_hw_omap *clk) +static void omap3_dpll_allow_idle(struct clk_hw_omap *clk) { const struct dpll_data *dd; u32 v; @@ -665,11 +666,10 @@ void omap3_dpll_allow_idle(struct clk_hw_omap *clk) * by writing 0x5 instead of 0x1. Add some mechanism to * optionally enter this mode. */ - v = omap2_clk_readl(clk, dd->autoidle_reg); + v = ti_clk_ll_ops->clk_readl(dd->autoidle_reg); v &= ~dd->autoidle_mask; v |= DPLL_AUTOIDLE_LOW_POWER_STOP << __ffs(dd->autoidle_mask); - omap2_clk_writel(v, clk, dd->autoidle_reg); - + ti_clk_ll_ops->clk_writel(v, dd->autoidle_reg); } /** @@ -678,7 +678,7 @@ void omap3_dpll_allow_idle(struct clk_hw_omap *clk) * * Disable DPLL automatic idle control. No return value. */ -void omap3_dpll_deny_idle(struct clk_hw_omap *clk) +static void omap3_dpll_deny_idle(struct clk_hw_omap *clk) { const struct dpll_data *dd; u32 v; @@ -691,11 +691,10 @@ void omap3_dpll_deny_idle(struct clk_hw_omap *clk) if (!dd->autoidle_reg) return; - v = omap2_clk_readl(clk, dd->autoidle_reg); + v = ti_clk_ll_ops->clk_readl(dd->autoidle_reg); v &= ~dd->autoidle_mask; v |= DPLL_AUTOIDLE_DISABLE << __ffs(dd->autoidle_mask); - omap2_clk_writel(v, clk, dd->autoidle_reg); - + ti_clk_ll_ops->clk_writel(v, dd->autoidle_reg); } /* Clock control for DPLL outputs */ @@ -704,14 +703,12 @@ void omap3_dpll_deny_idle(struct clk_hw_omap *clk) static struct clk_hw_omap *omap3_find_clkoutx2_dpll(struct clk_hw *hw) { struct clk_hw_omap *pclk = NULL; - struct clk *parent; /* Walk up the parents of clk, looking for a DPLL */ do { do { - parent = __clk_get_parent(hw->clk); - hw = __clk_get_hw(parent); - } while (hw && (__clk_get_flags(hw->clk) & CLK_IS_BASIC)); + hw = clk_hw_get_parent(hw); + } while (hw && (clk_hw_get_flags(hw) & CLK_IS_BASIC)); if (!hw) break; pclk = to_clk_hw_omap(hw); @@ -753,7 +750,7 @@ unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw, WARN_ON(!dd->enable_mask); - v = omap2_clk_readl(pclk, dd->control_reg) & dd->enable_mask; + v = ti_clk_ll_ops->clk_readl(dd->control_reg) & dd->enable_mask; v >>= __ffs(dd->enable_mask); if ((v != OMAP3XXX_EN_DPLL_LOCKED) || (dd->flags & DPLL_J_TYPE)) rate = parent_rate; @@ -762,57 +759,59 @@ unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw, return rate; } -int omap3_clkoutx2_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - return 0; -} +/* OMAP3/4 non-CORE DPLL clkops */ +const struct clk_hw_omap_ops clkhwops_omap3_dpll = { + .allow_idle = omap3_dpll_allow_idle, + .deny_idle = omap3_dpll_deny_idle, +}; -long omap3_clkoutx2_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +/** + * omap3_dpll4_set_rate - set rate for omap3 per-dpll + * @hw: clock to change + * @rate: target rate for clock + * @parent_rate: rate of the parent clock + * + * Check if the current SoC supports the per-dpll reprogram operation + * or not, and then do the rate change if supported. Returns -EINVAL + * if not supported, 0 for success, and potential error codes from the + * clock rate change. + */ +int omap3_dpll4_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { - const struct dpll_data *dd; - u32 v; - struct clk_hw_omap *pclk = NULL; - - if (!*prate) - return 0; - - pclk = omap3_find_clkoutx2_dpll(hw); - - if (!pclk) - return 0; - - dd = pclk->dpll_data; - - /* TYPE J does not have a clkoutx2 */ - if (dd->flags & DPLL_J_TYPE) { - *prate = __clk_round_rate(__clk_get_parent(pclk->hw.clk), rate); - return *prate; + /* + * According to the 12-5 CDP code from TI, "Limitation 2.5" + * on 3430ES1 prevents us from changing DPLL multipliers or dividers + * on DPLL4. + */ + if (ti_clk_get_features()->flags & TI_CLK_DPLL4_DENY_REPROGRAM) { + pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n"); + return -EINVAL; } - WARN_ON(!dd->enable_mask); - - v = omap2_clk_readl(pclk, dd->control_reg) & dd->enable_mask; - v >>= __ffs(dd->enable_mask); - - /* If in bypass, the rate is fixed to the bypass rate*/ - if (v != OMAP3XXX_EN_DPLL_LOCKED) - return *prate; - - if (__clk_get_flags(hw->clk) & CLK_SET_RATE_PARENT) { - unsigned long best_parent; + return omap3_noncore_dpll_set_rate(hw, rate, parent_rate); +} - best_parent = (rate / 2); - *prate = __clk_round_rate(__clk_get_parent(hw->clk), - best_parent); +/** + * omap3_dpll4_set_rate_and_parent - set rate and parent for omap3 per-dpll + * @hw: clock to change + * @rate: target rate for clock + * @parent_rate: rate of the parent clock + * @index: parent index, 0 - reference clock, 1 - bypass clock + * + * Check if the current SoC support the per-dpll reprogram operation + * or not, and then do the rate + parent change if supported. Returns + * -EINVAL if not supported, 0 for success, and potential error codes + * from the clock rate change. + */ +int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate, u8 index) +{ + if (ti_clk_get_features()->flags & TI_CLK_DPLL4_DENY_REPROGRAM) { + pr_err("clock: DPLL4 cannot change rate due to silicon 'Limitation 2.5' on 3430ES1.\n"); + return -EINVAL; } - return *prate * 2; + return omap3_noncore_dpll_set_rate_and_parent(hw, rate, parent_rate, + index); } - -/* OMAP3/4 non-CORE DPLL clkops */ -const struct clk_hw_omap_ops clkhwops_omap3_dpll = { - .allow_idle = omap3_dpll_allow_idle, - .deny_idle = omap3_dpll_deny_idle, -}; diff --git a/arch/arm/mach-omap2/dpll44xx.c b/drivers/clk/ti/dpll44xx.c index f231be05b9a6..660d7436ac24 100644 --- a/arch/arm/mach-omap2/dpll44xx.c +++ b/drivers/clk/ti/dpll44xx.c @@ -14,6 +14,7 @@ #include <linux/clk.h> #include <linux/io.h> #include <linux/bitops.h> +#include <linux/clk/ti.h> #include "clock.h" @@ -29,14 +30,14 @@ /* * Bitfield declarations */ -#define OMAP4430_DPLL_CLKOUT_GATE_CTRL_MASK (1 << 8) -#define OMAP4430_DPLL_CLKOUTX2_GATE_CTRL_MASK (1 << 10) -#define OMAP4430_DPLL_REGM4XEN_MASK (1 << 11) +#define OMAP4430_DPLL_CLKOUT_GATE_CTRL_MASK BIT(8) +#define OMAP4430_DPLL_CLKOUTX2_GATE_CTRL_MASK BIT(10) +#define OMAP4430_DPLL_REGM4XEN_MASK BIT(11) /* Static rate multiplier for OMAP4 REGM4XEN clocks */ #define OMAP4430_REGM4XEN_MULT 4 -void omap4_dpllmx_allow_gatectrl(struct clk_hw_omap *clk) +static void omap4_dpllmx_allow_gatectrl(struct clk_hw_omap *clk) { u32 v; u32 mask; @@ -48,13 +49,13 @@ void omap4_dpllmx_allow_gatectrl(struct clk_hw_omap *clk) OMAP4430_DPLL_CLKOUTX2_GATE_CTRL_MASK : OMAP4430_DPLL_CLKOUT_GATE_CTRL_MASK; - v = omap2_clk_readl(clk, clk->clksel_reg); + v = ti_clk_ll_ops->clk_readl(clk->clksel_reg); /* Clear the bit to allow gatectrl */ v &= ~mask; - omap2_clk_writel(v, clk, clk->clksel_reg); + ti_clk_ll_ops->clk_writel(v, clk->clksel_reg); } -void omap4_dpllmx_deny_gatectrl(struct clk_hw_omap *clk) +static void omap4_dpllmx_deny_gatectrl(struct clk_hw_omap *clk) { u32 v; u32 mask; @@ -66,10 +67,10 @@ void omap4_dpllmx_deny_gatectrl(struct clk_hw_omap *clk) OMAP4430_DPLL_CLKOUTX2_GATE_CTRL_MASK : OMAP4430_DPLL_CLKOUT_GATE_CTRL_MASK; - v = omap2_clk_readl(clk, clk->clksel_reg); + v = ti_clk_ll_ops->clk_readl(clk->clksel_reg); /* Set the bit to deny gatectrl */ v |= mask; - omap2_clk_writel(v, clk, clk->clksel_reg); + ti_clk_ll_ops->clk_writel(v, clk->clksel_reg); } const struct clk_hw_omap_ops clkhwops_omap4_dpllmx = { @@ -93,7 +94,7 @@ static void omap4_dpll_lpmode_recalc(struct dpll_data *dd) { long fint, fout; - fint = __clk_get_rate(dd->clk_ref) / (dd->last_rounded_n + 1); + fint = clk_get_rate(dd->clk_ref) / (dd->last_rounded_n + 1); fout = fint * dd->last_rounded_m; if ((fint < OMAP4_DPLL_LP_FINT_MAX) && (fout < OMAP4_DPLL_LP_FOUT_MAX)) @@ -112,7 +113,7 @@ static void omap4_dpll_lpmode_recalc(struct dpll_data *dd) * upon success, or 0 upon error. */ unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw, - unsigned long parent_rate) + unsigned long parent_rate) { struct clk_hw_omap *clk = to_clk_hw_omap(hw); u32 v; @@ -127,7 +128,7 @@ unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw, rate = omap2_get_dpll_rate(clk); /* regm4xen adds a multiplier of 4 to DPLL calculations */ - v = omap2_clk_readl(clk, dd->control_reg); + v = ti_clk_ll_ops->clk_readl(dd->control_reg); if (v & OMAP4430_DPLL_REGM4XEN_MASK) rate *= OMAP4430_REGM4XEN_MULT; @@ -191,42 +192,36 @@ out: /** * omap4_dpll_regm4xen_determine_rate - determine rate for a DPLL * @hw: pointer to the clock to determine rate for - * @rate: target rate for the DPLL - * @best_parent_rate: pointer for returning best parent rate - * @best_parent_clk: pointer for returning best parent clock + * @req: target rate request * * Determines which DPLL mode to use for reaching a desired rate. * Checks whether the DPLL shall be in bypass or locked mode, and if * locked, calculates the M,N values for the DPLL via round-rate. - * Returns a positive clock rate with success, negative error value - * in failure. + * Returns 0 on success and a negative error value otherwise. */ -long omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk) +int omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_hw_omap *clk = to_clk_hw_omap(hw); struct dpll_data *dd; - if (!hw || !rate) + if (!req->rate) return -EINVAL; dd = clk->dpll_data; if (!dd) return -EINVAL; - if (__clk_get_rate(dd->clk_bypass) == rate && + if (clk_get_rate(dd->clk_bypass) == req->rate && (dd->modes & (1 << DPLL_LOW_POWER_BYPASS))) { - *best_parent_clk = __clk_get_hw(dd->clk_bypass); + req->best_parent_hw = __clk_get_hw(dd->clk_bypass); } else { - rate = omap4_dpll_regm4xen_round_rate(hw, rate, - best_parent_rate); - *best_parent_clk = __clk_get_hw(dd->clk_ref); + req->rate = omap4_dpll_regm4xen_round_rate(hw, req->rate, + &req->best_parent_rate); + req->best_parent_hw = __clk_get_hw(dd->clk_ref); } - *best_parent_rate = rate; + req->best_parent_rate = req->rate; - return rate; + return 0; } diff --git a/drivers/clk/ti/fapll.c b/drivers/clk/ti/fapll.c index 730aa62454a2..f4b2e9888bdf 100644 --- a/drivers/clk/ti/fapll.c +++ b/drivers/clk/ti/fapll.c @@ -9,6 +9,7 @@ * GNU General Public License for more details. */ +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/delay.h> #include <linux/err.h> @@ -558,8 +559,7 @@ static void __init ti_fapll_setup(struct device_node *node) goto free; } - parent_name[0] = of_clk_get_parent_name(node, 0); - parent_name[1] = of_clk_get_parent_name(node, 1); + of_clk_parent_fill(node, parent_name, 2); init->parent_names = parent_name; fd->clk_ref = of_clk_get(node, 0); diff --git a/drivers/clk/ti/fixed-factor.c b/drivers/clk/ti/fixed-factor.c index c2c8a287408c..3cd406768909 100644 --- a/drivers/clk/ti/fixed-factor.c +++ b/drivers/clk/ti/fixed-factor.c @@ -22,6 +22,8 @@ #include <linux/of_address.h> #include <linux/clk/ti.h> +#include "clock.h" + #undef pr_fmt #define pr_fmt(fmt) "%s: " fmt, __func__ diff --git a/drivers/clk/ti/gate.c b/drivers/clk/ti/gate.c index 0c6fdfcd5f93..5429d3534363 100644 --- a/drivers/clk/ti/gate.c +++ b/drivers/clk/ti/gate.c @@ -62,7 +62,7 @@ static const struct clk_ops omap_gate_clk_hsdiv_restore_ops = { * (Any other value different from the Read value) to the * corresponding CM_CLKSEL register will refresh the dividers. */ -static int omap36xx_gate_clk_enable_with_hsdiv_restore(struct clk_hw *clk) +static int omap36xx_gate_clk_enable_with_hsdiv_restore(struct clk_hw *hw) { struct clk_divider *parent; struct clk_hw *parent_hw; @@ -70,10 +70,10 @@ static int omap36xx_gate_clk_enable_with_hsdiv_restore(struct clk_hw *clk) int ret; /* Clear PWRDN bit of HSDIVIDER */ - ret = omap2_dflt_clk_enable(clk); + ret = omap2_dflt_clk_enable(hw); /* Parent is the x2 node, get parent of parent for the m2 div */ - parent_hw = __clk_get_hw(__clk_get_parent(__clk_get_parent(clk->clk))); + parent_hw = clk_hw_get_parent(clk_hw_get_parent(hw)); parent = to_clk_divider(parent_hw); /* Restore the dividers */ diff --git a/drivers/clk/ti/interface.c b/drivers/clk/ti/interface.c index c76230d8dd04..e505e6f8228d 100644 --- a/drivers/clk/ti/interface.c +++ b/drivers/clk/ti/interface.c @@ -63,7 +63,7 @@ static struct clk *_register_interface(struct device *dev, const char *name, if (IS_ERR(clk)) kfree(clk_hw); else - omap2_init_clk_hw_omap_clocks(clk); + omap2_init_clk_hw_omap_clocks(&clk_hw->hw); return clk; } diff --git a/drivers/clk/ti/mux.c b/drivers/clk/ti/mux.c index 5cdeed538b08..69f08a1d047d 100644 --- a/drivers/clk/ti/mux.c +++ b/drivers/clk/ti/mux.c @@ -31,7 +31,7 @@ static u8 ti_clk_mux_get_parent(struct clk_hw *hw) { struct clk_mux *mux = to_clk_mux(hw); - int num_parents = __clk_get_num_parents(hw->clk); + int num_parents = clk_hw_get_num_parents(hw); u32 val; /* @@ -190,7 +190,6 @@ static void of_mux_clk_setup(struct device_node *node) void __iomem *reg; int num_parents; const char **parent_names; - int i; u8 clk_mux_flags = 0; u32 mask = 0; u32 shift = 0; @@ -205,8 +204,7 @@ static void of_mux_clk_setup(struct device_node *node) if (!parent_names) goto cleanup; - for (i = 0; i < num_parents; i++) - parent_names[i] = of_clk_get_parent_name(node, i); + of_clk_parent_fill(node, parent_names, num_parents); reg = ti_clk_get_reg_addr(node, 0); diff --git a/drivers/clk/ux500/Makefile b/drivers/clk/ux500/Makefile index 521483f0ba33..f3baef29859c 100644 --- a/drivers/clk/ux500/Makefile +++ b/drivers/clk/ux500/Makefile @@ -9,7 +9,6 @@ obj-y += clk-sysctrl.o # Clock definitions obj-y += u8500_of_clk.o -obj-y += u8500_clk.o obj-y += u9540_clk.o obj-y += u8540_clk.o diff --git a/drivers/clk/ux500/abx500-clk.c b/drivers/clk/ux500/abx500-clk.c index 3e5e05101302..222425d08ab6 100644 --- a/drivers/clk/ux500/abx500-clk.c +++ b/drivers/clk/ux500/abx500-clk.c @@ -13,7 +13,6 @@ #include <linux/platform_device.h> #include <linux/mfd/abx500/ab8500.h> #include <linux/mfd/abx500/ab8500-sysctrl.h> -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/mfd/dbx500-prcmu.h> diff --git a/drivers/clk/ux500/clk-prcmu.c b/drivers/clk/ux500/clk-prcmu.c index bf63c96acb1a..7f343821f4e4 100644 --- a/drivers/clk/ux500/clk-prcmu.c +++ b/drivers/clk/ux500/clk-prcmu.c @@ -43,7 +43,7 @@ static void clk_prcmu_unprepare(struct clk_hw *hw) struct clk_prcmu *clk = to_clk_prcmu(hw); if (prcmu_request_clock(clk->cg_sel, false)) pr_err("clk_prcmu: %s failed to disable %s.\n", __func__, - __clk_get_name(hw->clk)); + clk_hw_get_name(hw)); else clk->is_prepared = 0; } @@ -101,11 +101,11 @@ static int clk_prcmu_opp_prepare(struct clk_hw *hw) if (!clk->opp_requested) { err = prcmu_qos_add_requirement(PRCMU_QOS_APE_OPP, - (char *)__clk_get_name(hw->clk), + (char *)clk_hw_get_name(hw), 100); if (err) { pr_err("clk_prcmu: %s fail req APE OPP for %s.\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); return err; } clk->opp_requested = 1; @@ -114,7 +114,7 @@ static int clk_prcmu_opp_prepare(struct clk_hw *hw) err = prcmu_request_clock(clk->cg_sel, true); if (err) { prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP, - (char *)__clk_get_name(hw->clk)); + (char *)clk_hw_get_name(hw)); clk->opp_requested = 0; return err; } @@ -129,13 +129,13 @@ static void clk_prcmu_opp_unprepare(struct clk_hw *hw) if (prcmu_request_clock(clk->cg_sel, false)) { pr_err("clk_prcmu: %s failed to disable %s.\n", __func__, - __clk_get_name(hw->clk)); + clk_hw_get_name(hw)); return; } if (clk->opp_requested) { prcmu_qos_remove_requirement(PRCMU_QOS_APE_OPP, - (char *)__clk_get_name(hw->clk)); + (char *)clk_hw_get_name(hw)); clk->opp_requested = 0; } @@ -151,7 +151,7 @@ static int clk_prcmu_opp_volt_prepare(struct clk_hw *hw) err = prcmu_request_ape_opp_100_voltage(true); if (err) { pr_err("clk_prcmu: %s fail req APE OPP VOLT for %s.\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); return err; } clk->opp_requested = 1; @@ -174,7 +174,7 @@ static void clk_prcmu_opp_volt_unprepare(struct clk_hw *hw) if (prcmu_request_clock(clk->cg_sel, false)) { pr_err("clk_prcmu: %s failed to disable %s.\n", __func__, - __clk_get_name(hw->clk)); + clk_hw_get_name(hw)); return; } diff --git a/drivers/clk/ux500/clk-sysctrl.c b/drivers/clk/ux500/clk-sysctrl.c index e364c9d4aa60..266ddea630d2 100644 --- a/drivers/clk/ux500/clk-sysctrl.c +++ b/drivers/clk/ux500/clk-sysctrl.c @@ -52,7 +52,7 @@ static void clk_sysctrl_unprepare(struct clk_hw *hw) struct clk_sysctrl *clk = to_clk_sysctrl(hw); if (ab8500_sysctrl_clear(clk->reg_sel[0], clk->reg_mask[0])) dev_err(clk->dev, "clk_sysctrl: %s fail to clear %s.\n", - __func__, __clk_get_name(hw->clk)); + __func__, clk_hw_get_name(hw)); } static unsigned long clk_sysctrl_recalc_rate(struct clk_hw *hw, diff --git a/drivers/clk/ux500/clk.h b/drivers/clk/ux500/clk.h index a2bb92d85ee0..b42485da704e 100644 --- a/drivers/clk/ux500/clk.h +++ b/drivers/clk/ux500/clk.h @@ -10,10 +10,11 @@ #ifndef __UX500_CLK_H #define __UX500_CLK_H -#include <linux/clk.h> #include <linux/device.h> #include <linux/types.h> +struct clk; + struct clk *clk_reg_prcc_pclk(const char *name, const char *parent_name, resource_size_t phy_base, diff --git a/drivers/clk/ux500/u8500_clk.c b/drivers/clk/ux500/u8500_clk.c deleted file mode 100644 index 4626b97b7d83..000000000000 --- a/drivers/clk/ux500/u8500_clk.c +++ /dev/null @@ -1,526 +0,0 @@ -/* - * Clock definitions for u8500 platform. - * - * Copyright (C) 2012 ST-Ericsson SA - * Author: Ulf Hansson <ulf.hansson@linaro.org> - * - * License terms: GNU General Public License (GPL) version 2 - */ - -#include <linux/clk.h> -#include <linux/clkdev.h> -#include <linux/clk-provider.h> -#include <linux/mfd/dbx500-prcmu.h> -#include <linux/platform_data/clk-ux500.h> -#include "clk.h" - -void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, - u32 clkrst5_base, u32 clkrst6_base) -{ - struct prcmu_fw_version *fw_version; - const char *sgaclk_parent = NULL; - struct clk *clk; - - /* Clock sources */ - clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0, - CLK_IS_ROOT|CLK_IGNORE_UNUSED); - clk_register_clkdev(clk, "soc0_pll", NULL); - - clk = clk_reg_prcmu_gate("soc1_pll", NULL, PRCMU_PLLSOC1, - CLK_IS_ROOT|CLK_IGNORE_UNUSED); - clk_register_clkdev(clk, "soc1_pll", NULL); - - clk = clk_reg_prcmu_gate("ddr_pll", NULL, PRCMU_PLLDDR, - CLK_IS_ROOT|CLK_IGNORE_UNUSED); - clk_register_clkdev(clk, "ddr_pll", NULL); - - /* FIXME: Add sys, ulp and int clocks here. */ - - clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL", - CLK_IS_ROOT|CLK_IGNORE_UNUSED, - 32768); - clk_register_clkdev(clk, "clk32k", NULL); - clk_register_clkdev(clk, "apb_pclk", "rtc-pl031"); - - /* PRCMU clocks */ - fw_version = prcmu_get_fw_version(); - if (fw_version != NULL) { - switch (fw_version->project) { - case PRCMU_FW_PROJECT_U8500_C2: - case PRCMU_FW_PROJECT_U8520: - case PRCMU_FW_PROJECT_U8420: - sgaclk_parent = "soc0_pll"; - break; - default: - break; - } - } - - if (sgaclk_parent) - clk = clk_reg_prcmu_gate("sgclk", sgaclk_parent, - PRCMU_SGACLK, 0); - else - clk = clk_reg_prcmu_gate("sgclk", NULL, - PRCMU_SGACLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "mali"); - - clk = clk_reg_prcmu_gate("uartclk", NULL, PRCMU_UARTCLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "UART"); - - clk = clk_reg_prcmu_gate("msp02clk", NULL, PRCMU_MSP02CLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "MSP02"); - - clk = clk_reg_prcmu_gate("msp1clk", NULL, PRCMU_MSP1CLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "MSP1"); - - clk = clk_reg_prcmu_gate("i2cclk", NULL, PRCMU_I2CCLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "I2C"); - - clk = clk_reg_prcmu_gate("slimclk", NULL, PRCMU_SLIMCLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "slim"); - - clk = clk_reg_prcmu_gate("per1clk", NULL, PRCMU_PER1CLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "PERIPH1"); - - clk = clk_reg_prcmu_gate("per2clk", NULL, PRCMU_PER2CLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "PERIPH2"); - - clk = clk_reg_prcmu_gate("per3clk", NULL, PRCMU_PER3CLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "PERIPH3"); - - clk = clk_reg_prcmu_gate("per5clk", NULL, PRCMU_PER5CLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "PERIPH5"); - - clk = clk_reg_prcmu_gate("per6clk", NULL, PRCMU_PER6CLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "PERIPH6"); - - clk = clk_reg_prcmu_gate("per7clk", NULL, PRCMU_PER7CLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "PERIPH7"); - - clk = clk_reg_prcmu_scalable("lcdclk", NULL, PRCMU_LCDCLK, 0, - CLK_IS_ROOT|CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "lcd"); - clk_register_clkdev(clk, "lcd", "mcde"); - - clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "bml"); - - clk = clk_reg_prcmu_scalable("hsitxclk", NULL, PRCMU_HSITXCLK, 0, - CLK_IS_ROOT|CLK_SET_RATE_GATE); - - clk = clk_reg_prcmu_scalable("hsirxclk", NULL, PRCMU_HSIRXCLK, 0, - CLK_IS_ROOT|CLK_SET_RATE_GATE); - - clk = clk_reg_prcmu_scalable("hdmiclk", NULL, PRCMU_HDMICLK, 0, - CLK_IS_ROOT|CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "hdmi"); - clk_register_clkdev(clk, "hdmi", "mcde"); - - clk = clk_reg_prcmu_scalable("apeatclk", NULL, PRCMU_APEATCLK, 0, - CLK_IS_ROOT|CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "apeat"); - - clk = clk_reg_prcmu_scalable("apetraceclk", NULL, PRCMU_APETRACECLK, 0, - CLK_IS_ROOT|CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "apetrace"); - - clk = clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "mcde"); - clk_register_clkdev(clk, "mcde", "mcde"); - clk_register_clkdev(clk, "dsisys", "dsilink.0"); - clk_register_clkdev(clk, "dsisys", "dsilink.1"); - clk_register_clkdev(clk, "dsisys", "dsilink.2"); - - clk = clk_reg_prcmu_opp_gate("ipi2cclk", NULL, PRCMU_IPI2CCLK, - CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "ipi2"); - - clk = clk_reg_prcmu_gate("dsialtclk", NULL, PRCMU_DSIALTCLK, - CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "dsialt"); - - clk = clk_reg_prcmu_gate("dmaclk", NULL, PRCMU_DMACLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "dma40.0"); - - clk = clk_reg_prcmu_gate("b2r2clk", NULL, PRCMU_B2R2CLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "b2r2"); - clk_register_clkdev(clk, NULL, "b2r2_core"); - clk_register_clkdev(clk, NULL, "U8500-B2R2.0"); - - clk = clk_reg_prcmu_scalable("tvclk", NULL, PRCMU_TVCLK, 0, - CLK_IS_ROOT|CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "tv"); - clk_register_clkdev(clk, "tv", "mcde"); - - clk = clk_reg_prcmu_gate("sspclk", NULL, PRCMU_SSPCLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "SSP"); - - clk = clk_reg_prcmu_gate("rngclk", NULL, PRCMU_RNGCLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "rngclk"); - - clk = clk_reg_prcmu_gate("uiccclk", NULL, PRCMU_UICCCLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "uicc"); - - clk = clk_reg_prcmu_gate("timclk", NULL, PRCMU_TIMCLK, CLK_IS_ROOT); - clk_register_clkdev(clk, NULL, "mtu0"); - clk_register_clkdev(clk, NULL, "mtu1"); - - clk = clk_reg_prcmu_opp_volt_scalable("sdmmcclk", NULL, PRCMU_SDMMCCLK, - 100000000, - CLK_IS_ROOT|CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "sdmmc"); - - clk = clk_reg_prcmu_scalable("dsi_pll", "hdmiclk", - PRCMU_PLLDSI, 0, CLK_SET_RATE_GATE); - clk_register_clkdev(clk, "dsihs2", "mcde"); - clk_register_clkdev(clk, "dsihs2", "dsilink.2"); - - - clk = clk_reg_prcmu_scalable("dsi0clk", "dsi_pll", - PRCMU_DSI0CLK, 0, CLK_SET_RATE_GATE); - clk_register_clkdev(clk, "dsihs0", "mcde"); - clk_register_clkdev(clk, "dsihs0", "dsilink.0"); - - clk = clk_reg_prcmu_scalable("dsi1clk", "dsi_pll", - PRCMU_DSI1CLK, 0, CLK_SET_RATE_GATE); - clk_register_clkdev(clk, "dsihs1", "mcde"); - clk_register_clkdev(clk, "dsihs1", "dsilink.1"); - - clk = clk_reg_prcmu_scalable("dsi0escclk", "tvclk", - PRCMU_DSI0ESCCLK, 0, CLK_SET_RATE_GATE); - clk_register_clkdev(clk, "dsilp0", "dsilink.0"); - clk_register_clkdev(clk, "dsilp0", "mcde"); - - clk = clk_reg_prcmu_scalable("dsi1escclk", "tvclk", - PRCMU_DSI1ESCCLK, 0, CLK_SET_RATE_GATE); - clk_register_clkdev(clk, "dsilp1", "dsilink.1"); - clk_register_clkdev(clk, "dsilp1", "mcde"); - - clk = clk_reg_prcmu_scalable("dsi2escclk", "tvclk", - PRCMU_DSI2ESCCLK, 0, CLK_SET_RATE_GATE); - clk_register_clkdev(clk, "dsilp2", "dsilink.2"); - clk_register_clkdev(clk, "dsilp2", "mcde"); - - clk = clk_reg_prcmu_scalable_rate("armss", NULL, - PRCMU_ARMSS, 0, CLK_IS_ROOT|CLK_IGNORE_UNUSED); - clk_register_clkdev(clk, "armss", NULL); - - clk = clk_register_fixed_factor(NULL, "smp_twd", "armss", - CLK_IGNORE_UNUSED, 1, 2); - clk_register_clkdev(clk, NULL, "smp_twd"); - - /* - * FIXME: Add special handled PRCMU clocks here: - * 1. clkout0yuv, use PRCMU as parent + need regulator + pinctrl. - * 2. ab9540_clkout1yuv, see clkout0yuv - */ - - /* PRCC P-clocks */ - clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", clkrst1_base, - BIT(0), 0); - clk_register_clkdev(clk, "apb_pclk", "uart0"); - - clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", clkrst1_base, - BIT(1), 0); - clk_register_clkdev(clk, "apb_pclk", "uart1"); - - clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", clkrst1_base, - BIT(2), 0); - clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.1"); - - clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", clkrst1_base, - BIT(3), 0); - clk_register_clkdev(clk, "apb_pclk", "msp0"); - clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.0"); - - clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", clkrst1_base, - BIT(4), 0); - clk_register_clkdev(clk, "apb_pclk", "msp1"); - clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.1"); - - clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", clkrst1_base, - BIT(5), 0); - clk_register_clkdev(clk, "apb_pclk", "sdi0"); - - clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", clkrst1_base, - BIT(6), 0); - clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.2"); - - clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", clkrst1_base, - BIT(7), 0); - clk_register_clkdev(clk, NULL, "spi3"); - - clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", clkrst1_base, - BIT(8), 0); - clk_register_clkdev(clk, "apb_pclk", "slimbus0"); - - clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", clkrst1_base, - BIT(9), 0); - clk_register_clkdev(clk, NULL, "gpio.0"); - clk_register_clkdev(clk, NULL, "gpio.1"); - clk_register_clkdev(clk, NULL, "gpioblock0"); - - clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", clkrst1_base, - BIT(10), 0); - clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.4"); - - clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", clkrst1_base, - BIT(11), 0); - clk_register_clkdev(clk, "apb_pclk", "msp3"); - clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.3"); - - clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", clkrst2_base, - BIT(0), 0); - clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.3"); - - clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", clkrst2_base, - BIT(1), 0); - clk_register_clkdev(clk, NULL, "spi2"); - - clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", clkrst2_base, - BIT(2), 0); - clk_register_clkdev(clk, NULL, "spi1"); - - clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", clkrst2_base, - BIT(3), 0); - clk_register_clkdev(clk, NULL, "pwl"); - - clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", clkrst2_base, - BIT(4), 0); - clk_register_clkdev(clk, "apb_pclk", "sdi4"); - - clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", clkrst2_base, - BIT(5), 0); - clk_register_clkdev(clk, "apb_pclk", "msp2"); - clk_register_clkdev(clk, "apb_pclk", "ux500-msp-i2s.2"); - - clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", clkrst2_base, - BIT(6), 0); - clk_register_clkdev(clk, "apb_pclk", "sdi1"); - - clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", clkrst2_base, - BIT(7), 0); - clk_register_clkdev(clk, "apb_pclk", "sdi3"); - - clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", clkrst2_base, - BIT(8), 0); - clk_register_clkdev(clk, NULL, "spi0"); - - clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", clkrst2_base, - BIT(9), 0); - clk_register_clkdev(clk, "hsir_hclk", "ste_hsi.0"); - - clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", clkrst2_base, - BIT(10), 0); - clk_register_clkdev(clk, "hsit_hclk", "ste_hsi.0"); - - clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", clkrst2_base, - BIT(11), 0); - clk_register_clkdev(clk, NULL, "gpio.6"); - clk_register_clkdev(clk, NULL, "gpio.7"); - clk_register_clkdev(clk, NULL, "gpioblock1"); - - clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", clkrst2_base, - BIT(12), 0); - - clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", clkrst3_base, - BIT(0), 0); - clk_register_clkdev(clk, "fsmc", NULL); - clk_register_clkdev(clk, NULL, "smsc911x.0"); - - clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", clkrst3_base, - BIT(1), 0); - clk_register_clkdev(clk, "apb_pclk", "ssp0"); - - clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", clkrst3_base, - BIT(2), 0); - clk_register_clkdev(clk, "apb_pclk", "ssp1"); - - clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", clkrst3_base, - BIT(3), 0); - clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.0"); - - clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", clkrst3_base, - BIT(4), 0); - clk_register_clkdev(clk, "apb_pclk", "sdi2"); - - clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", clkrst3_base, - BIT(5), 0); - clk_register_clkdev(clk, "apb_pclk", "ske"); - clk_register_clkdev(clk, "apb_pclk", "nmk-ske-keypad"); - - clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", clkrst3_base, - BIT(6), 0); - clk_register_clkdev(clk, "apb_pclk", "uart2"); - - clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", clkrst3_base, - BIT(7), 0); - clk_register_clkdev(clk, "apb_pclk", "sdi5"); - - clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", clkrst3_base, - BIT(8), 0); - clk_register_clkdev(clk, NULL, "gpio.2"); - clk_register_clkdev(clk, NULL, "gpio.3"); - clk_register_clkdev(clk, NULL, "gpio.4"); - clk_register_clkdev(clk, NULL, "gpio.5"); - clk_register_clkdev(clk, NULL, "gpioblock2"); - - clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", clkrst5_base, - BIT(0), 0); - clk_register_clkdev(clk, "usb", "musb-ux500.0"); - - clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", clkrst5_base, - BIT(1), 0); - clk_register_clkdev(clk, NULL, "gpio.8"); - clk_register_clkdev(clk, NULL, "gpioblock3"); - - clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", clkrst6_base, - BIT(0), 0); - clk_register_clkdev(clk, "apb_pclk", "rng"); - - clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", clkrst6_base, - BIT(1), 0); - clk_register_clkdev(clk, NULL, "cryp0"); - clk_register_clkdev(clk, NULL, "cryp1"); - - clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", clkrst6_base, - BIT(2), 0); - clk_register_clkdev(clk, NULL, "hash0"); - - clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", clkrst6_base, - BIT(3), 0); - clk_register_clkdev(clk, NULL, "pka"); - - clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", clkrst6_base, - BIT(4), 0); - clk_register_clkdev(clk, NULL, "hash1"); - - clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", clkrst6_base, - BIT(5), 0); - clk_register_clkdev(clk, NULL, "cfgreg"); - - clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", clkrst6_base, - BIT(6), 0); - clk_register_clkdev(clk, "apb_pclk", "mtu0"); - - clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", clkrst6_base, - BIT(7), 0); - clk_register_clkdev(clk, "apb_pclk", "mtu1"); - - /* PRCC K-clocks - * - * FIXME: Some drivers requires PERPIH[n| to be automatically enabled - * by enabling just the K-clock, even if it is not a valid parent to - * the K-clock. Until drivers get fixed we might need some kind of - * "parent muxed join". - */ - - /* Periph1 */ - clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk", - clkrst1_base, BIT(0), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "uart0"); - - clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk", - clkrst1_base, BIT(1), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "uart1"); - - clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk", - clkrst1_base, BIT(2), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "nmk-i2c.1"); - - clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk", - clkrst1_base, BIT(3), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "msp0"); - clk_register_clkdev(clk, NULL, "ux500-msp-i2s.0"); - - clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk", - clkrst1_base, BIT(4), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "msp1"); - clk_register_clkdev(clk, NULL, "ux500-msp-i2s.1"); - - clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk", - clkrst1_base, BIT(5), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "sdi0"); - - clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk", - clkrst1_base, BIT(6), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "nmk-i2c.2"); - - clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk", - clkrst1_base, BIT(8), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "slimbus0"); - - clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk", - clkrst1_base, BIT(9), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "nmk-i2c.4"); - - clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk", - clkrst1_base, BIT(10), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "msp3"); - clk_register_clkdev(clk, NULL, "ux500-msp-i2s.3"); - - /* Periph2 */ - clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk", - clkrst2_base, BIT(0), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "nmk-i2c.3"); - - clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk", - clkrst2_base, BIT(2), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "sdi4"); - - clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk", - clkrst2_base, BIT(3), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "msp2"); - clk_register_clkdev(clk, NULL, "ux500-msp-i2s.2"); - - clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk", - clkrst2_base, BIT(4), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "sdi1"); - - clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk", - clkrst2_base, BIT(5), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "sdi3"); - - /* Note that rate is received from parent. */ - clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk", - clkrst2_base, BIT(6), - CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); - clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk", - clkrst2_base, BIT(7), - CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); - - /* Periph3 */ - clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk", - clkrst3_base, BIT(1), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "ssp0"); - - clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk", - clkrst3_base, BIT(2), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "ssp1"); - - clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk", - clkrst3_base, BIT(3), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "nmk-i2c.0"); - - clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk", - clkrst3_base, BIT(4), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "sdi2"); - - clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k", - clkrst3_base, BIT(5), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "ske"); - clk_register_clkdev(clk, NULL, "nmk-ske-keypad"); - - clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk", - clkrst3_base, BIT(6), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "uart2"); - - clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk", - clkrst3_base, BIT(7), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "sdi5"); - - /* Periph6 */ - clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk", - clkrst6_base, BIT(0), CLK_SET_RATE_GATE); - clk_register_clkdev(clk, NULL, "rng"); -} diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c index e319ef912dc6..271c09644652 100644 --- a/drivers/clk/ux500/u8500_of_clk.c +++ b/drivers/clk/ux500/u8500_of_clk.c @@ -8,8 +8,7 @@ */ #include <linux/of.h> -#include <linux/clk.h> -#include <linux/clkdev.h> +#include <linux/of_address.h> #include <linux/clk-provider.h> #include <linux/mfd/dbx500-prcmu.h> #include <linux/platform_data/clk-ux500.h> @@ -54,14 +53,25 @@ static const struct of_device_id u8500_clk_of_match[] = { { }, }; -void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, - u32 clkrst5_base, u32 clkrst6_base) +/* CLKRST4 is missing making it hard to index things */ +enum clkrst_index { + CLKRST1_INDEX = 0, + CLKRST2_INDEX, + CLKRST3_INDEX, + CLKRST5_INDEX, + CLKRST6_INDEX, + CLKRST_MAX, +}; + +void u8500_clk_init(void) { struct prcmu_fw_version *fw_version; struct device_node *np = NULL; struct device_node *child = NULL; const char *sgaclk_parent = NULL; struct clk *clk, *rtc_clk, *twd_clk; + u32 bases[CLKRST_MAX]; + int i; if (of_have_populated_dt()) np = of_find_matching_node(NULL, u8500_clk_of_match); @@ -69,6 +79,15 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, pr_err("Either DT or U8500 Clock node not found\n"); return; } + for (i = 0; i < ARRAY_SIZE(bases); i++) { + struct resource r; + + if (of_address_to_resource(np, i, &r)) + /* Not much choice but to continue */ + pr_err("failed to get CLKRST %d base address\n", + i + 1); + bases[i] = r.start; + } /* Clock sources */ clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0, @@ -246,179 +265,179 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, */ /* PRCC P-clocks */ - clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", bases[CLKRST1_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 1, 0); - clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", bases[CLKRST1_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 1, 1); - clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", bases[CLKRST1_INDEX], BIT(2), 0); PRCC_PCLK_STORE(clk, 1, 2); - clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", bases[CLKRST1_INDEX], BIT(3), 0); PRCC_PCLK_STORE(clk, 1, 3); - clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", bases[CLKRST1_INDEX], BIT(4), 0); PRCC_PCLK_STORE(clk, 1, 4); - clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", bases[CLKRST1_INDEX], BIT(5), 0); PRCC_PCLK_STORE(clk, 1, 5); - clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", bases[CLKRST1_INDEX], BIT(6), 0); PRCC_PCLK_STORE(clk, 1, 6); - clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", bases[CLKRST1_INDEX], BIT(7), 0); PRCC_PCLK_STORE(clk, 1, 7); - clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", bases[CLKRST1_INDEX], BIT(8), 0); PRCC_PCLK_STORE(clk, 1, 8); - clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", bases[CLKRST1_INDEX], BIT(9), 0); PRCC_PCLK_STORE(clk, 1, 9); - clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", bases[CLKRST1_INDEX], BIT(10), 0); PRCC_PCLK_STORE(clk, 1, 10); - clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", bases[CLKRST1_INDEX], BIT(11), 0); PRCC_PCLK_STORE(clk, 1, 11); - clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", bases[CLKRST2_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 2, 0); - clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", bases[CLKRST2_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 2, 1); - clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", bases[CLKRST2_INDEX], BIT(2), 0); PRCC_PCLK_STORE(clk, 2, 2); - clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", bases[CLKRST2_INDEX], BIT(3), 0); PRCC_PCLK_STORE(clk, 2, 3); - clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", bases[CLKRST2_INDEX], BIT(4), 0); PRCC_PCLK_STORE(clk, 2, 4); - clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", bases[CLKRST2_INDEX], BIT(5), 0); PRCC_PCLK_STORE(clk, 2, 5); - clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", bases[CLKRST2_INDEX], BIT(6), 0); PRCC_PCLK_STORE(clk, 2, 6); - clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", bases[CLKRST2_INDEX], BIT(7), 0); PRCC_PCLK_STORE(clk, 2, 7); - clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", bases[CLKRST2_INDEX], BIT(8), 0); PRCC_PCLK_STORE(clk, 2, 8); - clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", bases[CLKRST2_INDEX], BIT(9), 0); PRCC_PCLK_STORE(clk, 2, 9); - clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", bases[CLKRST2_INDEX], BIT(10), 0); PRCC_PCLK_STORE(clk, 2, 10); - clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", bases[CLKRST2_INDEX], BIT(11), 0); PRCC_PCLK_STORE(clk, 2, 11); - clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", bases[CLKRST2_INDEX], BIT(12), 0); PRCC_PCLK_STORE(clk, 2, 12); - clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", bases[CLKRST3_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 3, 0); - clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", bases[CLKRST3_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 3, 1); - clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", bases[CLKRST3_INDEX], BIT(2), 0); PRCC_PCLK_STORE(clk, 3, 2); - clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", bases[CLKRST3_INDEX], BIT(3), 0); PRCC_PCLK_STORE(clk, 3, 3); - clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", bases[CLKRST3_INDEX], BIT(4), 0); PRCC_PCLK_STORE(clk, 3, 4); - clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", bases[CLKRST3_INDEX], BIT(5), 0); PRCC_PCLK_STORE(clk, 3, 5); - clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", bases[CLKRST3_INDEX], BIT(6), 0); PRCC_PCLK_STORE(clk, 3, 6); - clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", bases[CLKRST3_INDEX], BIT(7), 0); PRCC_PCLK_STORE(clk, 3, 7); - clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", bases[CLKRST3_INDEX], BIT(8), 0); PRCC_PCLK_STORE(clk, 3, 8); - clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", clkrst5_base, + clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", bases[CLKRST5_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 5, 0); - clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", clkrst5_base, + clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", bases[CLKRST5_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 5, 1); - clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", bases[CLKRST6_INDEX], BIT(0), 0); PRCC_PCLK_STORE(clk, 6, 0); - clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", bases[CLKRST6_INDEX], BIT(1), 0); PRCC_PCLK_STORE(clk, 6, 1); - clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", bases[CLKRST6_INDEX], BIT(2), 0); PRCC_PCLK_STORE(clk, 6, 2); - clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", bases[CLKRST6_INDEX], BIT(3), 0); PRCC_PCLK_STORE(clk, 6, 3); - clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", bases[CLKRST6_INDEX], BIT(4), 0); PRCC_PCLK_STORE(clk, 6, 4); - clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", bases[CLKRST6_INDEX], BIT(5), 0); PRCC_PCLK_STORE(clk, 6, 5); - clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", bases[CLKRST6_INDEX], BIT(6), 0); PRCC_PCLK_STORE(clk, 6, 6); - clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", bases[CLKRST6_INDEX], BIT(7), 0); PRCC_PCLK_STORE(clk, 6, 7); @@ -432,109 +451,109 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, /* Periph1 */ clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk", - clkrst1_base, BIT(0), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(0), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 0); clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk", - clkrst1_base, BIT(1), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(1), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 1); clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk", - clkrst1_base, BIT(2), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(2), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 2); clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk", - clkrst1_base, BIT(3), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(3), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 3); clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk", - clkrst1_base, BIT(4), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(4), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 4); clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk", - clkrst1_base, BIT(5), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(5), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 5); clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk", - clkrst1_base, BIT(6), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(6), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 6); clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk", - clkrst1_base, BIT(8), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(8), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 8); clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk", - clkrst1_base, BIT(9), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(9), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 9); clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk", - clkrst1_base, BIT(10), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(10), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 1, 10); /* Periph2 */ clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk", - clkrst2_base, BIT(0), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(0), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 0); clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk", - clkrst2_base, BIT(2), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(2), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 2); clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk", - clkrst2_base, BIT(3), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(3), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 3); clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk", - clkrst2_base, BIT(4), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(4), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 4); clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk", - clkrst2_base, BIT(5), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(5), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 2, 5); /* Note that rate is received from parent. */ clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk", - clkrst2_base, BIT(6), + bases[CLKRST2_INDEX], BIT(6), CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); PRCC_KCLK_STORE(clk, 2, 6); clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk", - clkrst2_base, BIT(7), + bases[CLKRST2_INDEX], BIT(7), CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); PRCC_KCLK_STORE(clk, 2, 7); /* Periph3 */ clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk", - clkrst3_base, BIT(1), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(1), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 1); clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk", - clkrst3_base, BIT(2), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(2), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 2); clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk", - clkrst3_base, BIT(3), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(3), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 3); clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk", - clkrst3_base, BIT(4), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(4), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 4); clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k", - clkrst3_base, BIT(5), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(5), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 5); clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk", - clkrst3_base, BIT(6), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(6), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 6); clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk", - clkrst3_base, BIT(7), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(7), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 3, 7); /* Periph6 */ clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk", - clkrst6_base, BIT(0), CLK_SET_RATE_GATE); + bases[CLKRST6_INDEX], BIT(0), CLK_SET_RATE_GATE); PRCC_KCLK_STORE(clk, 6, 0); for_each_child_of_node(np, child) { diff --git a/drivers/clk/ux500/u8540_clk.c b/drivers/clk/ux500/u8540_clk.c index 20c8add90d11..d7bcb7a86615 100644 --- a/drivers/clk/ux500/u8540_clk.c +++ b/drivers/clk/ux500/u8540_clk.c @@ -7,17 +7,51 @@ * License terms: GNU General Public License (GPL) version 2 */ -#include <linux/clk.h> +#include <linux/of.h> +#include <linux/of_address.h> #include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/mfd/dbx500-prcmu.h> #include <linux/platform_data/clk-ux500.h> #include "clk.h" -void u8540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, - u32 clkrst5_base, u32 clkrst6_base) +static const struct of_device_id u8540_clk_of_match[] = { + { .compatible = "stericsson,u8540-clks", }, + { } +}; + +/* CLKRST4 is missing making it hard to index things */ +enum clkrst_index { + CLKRST1_INDEX = 0, + CLKRST2_INDEX, + CLKRST3_INDEX, + CLKRST5_INDEX, + CLKRST6_INDEX, + CLKRST_MAX, +}; + +void u8540_clk_init(void) { struct clk *clk; + struct device_node *np = NULL; + u32 bases[CLKRST_MAX]; + int i; + + if (of_have_populated_dt()) + np = of_find_matching_node(NULL, u8540_clk_of_match); + if (!np) { + pr_err("Either DT or U8540 Clock node not found\n"); + return; + } + for (i = 0; i < ARRAY_SIZE(bases); i++) { + struct resource r; + + if (of_address_to_resource(np, i, &r)) + /* Not much choice but to continue */ + pr_err("failed to get CLKRST %d base address\n", + i + 1); + bases[i] = r.start; + } /* Clock sources. */ /* Fixed ClockGen */ @@ -219,151 +253,151 @@ void u8540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, /* PRCC P-clocks */ /* Peripheral 1 : PRCC P-clocks */ - clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", bases[CLKRST1_INDEX], BIT(0), 0); clk_register_clkdev(clk, "apb_pclk", "uart0"); - clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", bases[CLKRST1_INDEX], BIT(1), 0); clk_register_clkdev(clk, "apb_pclk", "uart1"); - clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", bases[CLKRST1_INDEX], BIT(2), 0); clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.1"); - clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", bases[CLKRST1_INDEX], BIT(3), 0); clk_register_clkdev(clk, "apb_pclk", "msp0"); clk_register_clkdev(clk, "apb_pclk", "dbx5x0-msp-i2s.0"); - clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", bases[CLKRST1_INDEX], BIT(4), 0); clk_register_clkdev(clk, "apb_pclk", "msp1"); clk_register_clkdev(clk, "apb_pclk", "dbx5x0-msp-i2s.1"); - clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", bases[CLKRST1_INDEX], BIT(5), 0); clk_register_clkdev(clk, "apb_pclk", "sdi0"); - clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", bases[CLKRST1_INDEX], BIT(6), 0); clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.2"); - clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", bases[CLKRST1_INDEX], BIT(7), 0); clk_register_clkdev(clk, NULL, "spi3"); - clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", bases[CLKRST1_INDEX], BIT(8), 0); clk_register_clkdev(clk, "apb_pclk", "slimbus0"); - clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", bases[CLKRST1_INDEX], BIT(9), 0); clk_register_clkdev(clk, NULL, "gpio.0"); clk_register_clkdev(clk, NULL, "gpio.1"); clk_register_clkdev(clk, NULL, "gpioblock0"); clk_register_clkdev(clk, "apb_pclk", "ab85xx-codec.0"); - clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", bases[CLKRST1_INDEX], BIT(10), 0); clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.4"); - clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", clkrst1_base, + clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", bases[CLKRST1_INDEX], BIT(11), 0); clk_register_clkdev(clk, "apb_pclk", "msp3"); clk_register_clkdev(clk, "apb_pclk", "dbx5x0-msp-i2s.3"); /* Peripheral 2 : PRCC P-clocks */ - clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", bases[CLKRST2_INDEX], BIT(0), 0); clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.3"); - clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", bases[CLKRST2_INDEX], BIT(1), 0); clk_register_clkdev(clk, NULL, "spi2"); - clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", bases[CLKRST2_INDEX], BIT(2), 0); clk_register_clkdev(clk, NULL, "spi1"); - clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", bases[CLKRST2_INDEX], BIT(3), 0); clk_register_clkdev(clk, NULL, "pwl"); - clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", bases[CLKRST2_INDEX], BIT(4), 0); clk_register_clkdev(clk, "apb_pclk", "sdi4"); - clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", bases[CLKRST2_INDEX], BIT(5), 0); clk_register_clkdev(clk, "apb_pclk", "msp2"); clk_register_clkdev(clk, "apb_pclk", "dbx5x0-msp-i2s.2"); - clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", bases[CLKRST2_INDEX], BIT(6), 0); clk_register_clkdev(clk, "apb_pclk", "sdi1"); - clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", bases[CLKRST2_INDEX], BIT(7), 0); clk_register_clkdev(clk, "apb_pclk", "sdi3"); - clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", bases[CLKRST2_INDEX], BIT(8), 0); clk_register_clkdev(clk, NULL, "spi0"); - clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", bases[CLKRST2_INDEX], BIT(9), 0); clk_register_clkdev(clk, "hsir_hclk", "ste_hsi.0"); - clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", bases[CLKRST2_INDEX], BIT(10), 0); clk_register_clkdev(clk, "hsit_hclk", "ste_hsi.0"); - clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", bases[CLKRST2_INDEX], BIT(11), 0); clk_register_clkdev(clk, NULL, "gpio.6"); clk_register_clkdev(clk, NULL, "gpio.7"); clk_register_clkdev(clk, NULL, "gpioblock1"); - clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", clkrst2_base, + clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", bases[CLKRST2_INDEX], BIT(12), 0); clk_register_clkdev(clk, "msp4-pclk", "ab85xx-codec.0"); /* Peripheral 3 : PRCC P-clocks */ - clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", bases[CLKRST3_INDEX], BIT(0), 0); clk_register_clkdev(clk, NULL, "fsmc"); - clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", bases[CLKRST3_INDEX], BIT(1), 0); clk_register_clkdev(clk, "apb_pclk", "ssp0"); - clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", bases[CLKRST3_INDEX], BIT(2), 0); clk_register_clkdev(clk, "apb_pclk", "ssp1"); - clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", bases[CLKRST3_INDEX], BIT(3), 0); clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.0"); - clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", bases[CLKRST3_INDEX], BIT(4), 0); clk_register_clkdev(clk, "apb_pclk", "sdi2"); - clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", bases[CLKRST3_INDEX], BIT(5), 0); clk_register_clkdev(clk, "apb_pclk", "ske"); clk_register_clkdev(clk, "apb_pclk", "nmk-ske-keypad"); - clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", bases[CLKRST3_INDEX], BIT(6), 0); clk_register_clkdev(clk, "apb_pclk", "uart2"); - clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", bases[CLKRST3_INDEX], BIT(7), 0); clk_register_clkdev(clk, "apb_pclk", "sdi5"); - clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", bases[CLKRST3_INDEX], BIT(8), 0); clk_register_clkdev(clk, NULL, "gpio.2"); clk_register_clkdev(clk, NULL, "gpio.3"); @@ -371,64 +405,64 @@ void u8540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, clk_register_clkdev(clk, NULL, "gpio.5"); clk_register_clkdev(clk, NULL, "gpioblock2"); - clk = clk_reg_prcc_pclk("p3_pclk9", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk9", "per3clk", bases[CLKRST3_INDEX], BIT(9), 0); clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.5"); - clk = clk_reg_prcc_pclk("p3_pclk10", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk10", "per3clk", bases[CLKRST3_INDEX], BIT(10), 0); clk_register_clkdev(clk, "apb_pclk", "nmk-i2c.6"); - clk = clk_reg_prcc_pclk("p3_pclk11", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk11", "per3clk", bases[CLKRST3_INDEX], BIT(11), 0); clk_register_clkdev(clk, "apb_pclk", "uart3"); - clk = clk_reg_prcc_pclk("p3_pclk12", "per3clk", clkrst3_base, + clk = clk_reg_prcc_pclk("p3_pclk12", "per3clk", bases[CLKRST3_INDEX], BIT(12), 0); clk_register_clkdev(clk, "apb_pclk", "uart4"); /* Peripheral 5 : PRCC P-clocks */ - clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", clkrst5_base, + clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", bases[CLKRST5_INDEX], BIT(0), 0); clk_register_clkdev(clk, "usb", "musb-ux500.0"); clk_register_clkdev(clk, "usbclk", "ab-iddet.0"); - clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", clkrst5_base, + clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", bases[CLKRST5_INDEX], BIT(1), 0); clk_register_clkdev(clk, NULL, "gpio.8"); clk_register_clkdev(clk, NULL, "gpioblock3"); /* Peripheral 6 : PRCC P-clocks */ - clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", bases[CLKRST6_INDEX], BIT(0), 0); clk_register_clkdev(clk, "apb_pclk", "rng"); - clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", bases[CLKRST6_INDEX], BIT(1), 0); clk_register_clkdev(clk, NULL, "cryp0"); clk_register_clkdev(clk, NULL, "cryp1"); - clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", bases[CLKRST6_INDEX], BIT(2), 0); clk_register_clkdev(clk, NULL, "hash0"); - clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", bases[CLKRST6_INDEX], BIT(3), 0); clk_register_clkdev(clk, NULL, "pka"); - clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", bases[CLKRST6_INDEX], BIT(4), 0); clk_register_clkdev(clk, NULL, "db8540-hash1"); - clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", bases[CLKRST6_INDEX], BIT(5), 0); clk_register_clkdev(clk, NULL, "cfgreg"); - clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", bases[CLKRST6_INDEX], BIT(6), 0); clk_register_clkdev(clk, "apb_pclk", "mtu0"); - clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", clkrst6_base, + clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", bases[CLKRST6_INDEX], BIT(7), 0); clk_register_clkdev(clk, "apb_pclk", "mtu1"); @@ -442,138 +476,138 @@ void u8540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, /* Peripheral 1 : PRCC K-clocks */ clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk", - clkrst1_base, BIT(0), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(0), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "uart0"); clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk", - clkrst1_base, BIT(1), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(1), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "uart1"); clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk", - clkrst1_base, BIT(2), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(2), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "nmk-i2c.1"); clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk", - clkrst1_base, BIT(3), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(3), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "msp0"); clk_register_clkdev(clk, NULL, "dbx5x0-msp-i2s.0"); clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk", - clkrst1_base, BIT(4), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(4), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "msp1"); clk_register_clkdev(clk, NULL, "dbx5x0-msp-i2s.1"); clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmchclk", - clkrst1_base, BIT(5), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(5), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "sdi0"); clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk", - clkrst1_base, BIT(6), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(6), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "nmk-i2c.2"); clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk", - clkrst1_base, BIT(8), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(8), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "slimbus0"); clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk", - clkrst1_base, BIT(9), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(9), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "nmk-i2c.4"); clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk", - clkrst1_base, BIT(10), CLK_SET_RATE_GATE); + bases[CLKRST1_INDEX], BIT(10), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "msp3"); clk_register_clkdev(clk, NULL, "dbx5x0-msp-i2s.3"); /* Peripheral 2 : PRCC K-clocks */ clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk", - clkrst2_base, BIT(0), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(0), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "nmk-i2c.3"); clk = clk_reg_prcc_kclk("p2_pwl_kclk", "rtc32k", - clkrst2_base, BIT(1), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(1), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "pwl"); clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmchclk", - clkrst2_base, BIT(2), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(2), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "sdi4"); clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk", - clkrst2_base, BIT(3), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(3), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "msp2"); clk_register_clkdev(clk, NULL, "dbx5x0-msp-i2s.2"); clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmchclk", - clkrst2_base, BIT(4), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(4), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "sdi1"); clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk", - clkrst2_base, BIT(5), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(5), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "sdi3"); clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk", - clkrst2_base, BIT(6), + bases[CLKRST2_INDEX], BIT(6), CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); clk_register_clkdev(clk, "hsir_hsirxclk", "ste_hsi.0"); clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk", - clkrst2_base, BIT(7), + bases[CLKRST2_INDEX], BIT(7), CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT); clk_register_clkdev(clk, "hsit_hsitxclk", "ste_hsi.0"); /* Should only be 9540, but might be added for 85xx as well */ clk = clk_reg_prcc_kclk("p2_msp4_kclk", "msp02clk", - clkrst2_base, BIT(9), CLK_SET_RATE_GATE); + bases[CLKRST2_INDEX], BIT(9), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "msp4"); clk_register_clkdev(clk, "msp4", "ab85xx-codec.0"); /* Peripheral 3 : PRCC K-clocks */ clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk", - clkrst3_base, BIT(1), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(1), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "ssp0"); clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk", - clkrst3_base, BIT(2), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(2), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "ssp1"); clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk", - clkrst3_base, BIT(3), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(3), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "nmk-i2c.0"); clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmchclk", - clkrst3_base, BIT(4), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(4), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "sdi2"); clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k", - clkrst3_base, BIT(5), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(5), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "ske"); clk_register_clkdev(clk, NULL, "nmk-ske-keypad"); clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk", - clkrst3_base, BIT(6), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(6), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "uart2"); clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk", - clkrst3_base, BIT(7), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(7), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "sdi5"); clk = clk_reg_prcc_kclk("p3_i2c5_kclk", "i2cclk", - clkrst3_base, BIT(8), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(8), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "nmk-i2c.5"); clk = clk_reg_prcc_kclk("p3_i2c6_kclk", "i2cclk", - clkrst3_base, BIT(9), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(9), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "nmk-i2c.6"); clk = clk_reg_prcc_kclk("p3_uart3_kclk", "uartclk", - clkrst3_base, BIT(10), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(10), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "uart3"); clk = clk_reg_prcc_kclk("p3_uart4_kclk", "uartclk", - clkrst3_base, BIT(11), CLK_SET_RATE_GATE); + bases[CLKRST3_INDEX], BIT(11), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "uart4"); /* Peripheral 6 : PRCC K-clocks */ clk = clk_reg_prcc_kclk("p6_rng_kclk", "rngclk", - clkrst6_base, BIT(0), CLK_SET_RATE_GATE); + bases[CLKRST6_INDEX], BIT(0), CLK_SET_RATE_GATE); clk_register_clkdev(clk, NULL, "rng"); } diff --git a/drivers/clk/ux500/u9540_clk.c b/drivers/clk/ux500/u9540_clk.c index 44794782e7e0..2138a4c8cbca 100644 --- a/drivers/clk/ux500/u9540_clk.c +++ b/drivers/clk/ux500/u9540_clk.c @@ -7,15 +7,12 @@ * License terms: GNU General Public License (GPL) version 2 */ -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/clk-provider.h> #include <linux/mfd/dbx500-prcmu.h> #include <linux/platform_data/clk-ux500.h> #include "clk.h" -void u9540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, - u32 clkrst5_base, u32 clkrst6_base) +void u9540_clk_init(void) { /* register clocks here */ } diff --git a/drivers/clk/versatile/clk-icst.c b/drivers/clk/versatile/clk-icst.c index bc96f103bd7c..a3893ea2199d 100644 --- a/drivers/clk/versatile/clk-icst.c +++ b/drivers/clk/versatile/clk-icst.c @@ -13,8 +13,9 @@ * ICST clock code from the ARM tree should probably be merged into this * file. */ -#include <linux/clk.h> -#include <linux/clkdev.h> +#include <linux/kernel.h> +#include <linux/slab.h> +#include <linux/export.h> #include <linux/err.h> #include <linux/clk-provider.h> #include <linux/io.h> diff --git a/drivers/clk/versatile/clk-impd1.c b/drivers/clk/versatile/clk-impd1.c index 1cc1330dc570..65c842a21c62 100644 --- a/drivers/clk/versatile/clk-impd1.c +++ b/drivers/clk/versatile/clk-impd1.c @@ -7,7 +7,6 @@ * published by the Free Software Foundation. */ #include <linux/clk-provider.h> -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/err.h> #include <linux/io.h> diff --git a/drivers/clk/versatile/clk-realview.c b/drivers/clk/versatile/clk-realview.c index c8b523117fb7..86f70997d59d 100644 --- a/drivers/clk/versatile/clk-realview.c +++ b/drivers/clk/versatile/clk-realview.c @@ -6,7 +6,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include <linux/clk.h> #include <linux/clkdev.h> #include <linux/err.h> #include <linux/io.h> @@ -33,13 +32,13 @@ static const struct icst_params realview_oscvco_params = { .idx2s = icst307_idx2s, }; -static const struct clk_icst_desc __initdata realview_osc0_desc = { +static const struct clk_icst_desc realview_osc0_desc __initconst = { .params = &realview_oscvco_params, .vco_offset = REALVIEW_SYS_OSC0_OFFSET, .lock_offset = REALVIEW_SYS_LOCK_OFFSET, }; -static const struct clk_icst_desc __initdata realview_osc4_desc = { +static const struct clk_icst_desc realview_osc4_desc __initconst = { .params = &realview_oscvco_params, .vco_offset = REALVIEW_SYS_OSC4_OFFSET, .lock_offset = REALVIEW_SYS_LOCK_OFFSET, diff --git a/drivers/clk/versatile/clk-sp810.c b/drivers/clk/versatile/clk-sp810.c index a96dd8e53fdb..a1cdef6b0f90 100644 --- a/drivers/clk/versatile/clk-sp810.c +++ b/drivers/clk/versatile/clk-sp810.c @@ -12,7 +12,8 @@ */ #include <linux/amba/sp810.h> -#include <linux/clkdev.h> +#include <linux/slab.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/err.h> #include <linux/of.h> @@ -32,12 +33,9 @@ struct clk_sp810_timerclken { struct clk_sp810 { struct device_node *node; - int refclk_index, timclk_index; void __iomem *base; spinlock_t lock; struct clk_sp810_timerclken timerclken[4]; - struct clk *refclk; - struct clk *timclk; }; static u8 clk_sp810_timerclken_get_parent(struct clk_hw *hw) @@ -70,55 +68,7 @@ static int clk_sp810_timerclken_set_parent(struct clk_hw *hw, u8 index) return 0; } -/* - * FIXME - setting the parent every time .prepare is invoked is inefficient. - * This is better handled by a dedicated clock tree configuration mechanism at - * init-time. Revisit this later when such a mechanism exists - */ -static int clk_sp810_timerclken_prepare(struct clk_hw *hw) -{ - struct clk_sp810_timerclken *timerclken = to_clk_sp810_timerclken(hw); - struct clk_sp810 *sp810 = timerclken->sp810; - struct clk *old_parent = __clk_get_parent(hw->clk); - struct clk *new_parent; - - if (!sp810->refclk) - sp810->refclk = of_clk_get(sp810->node, sp810->refclk_index); - - if (!sp810->timclk) - sp810->timclk = of_clk_get(sp810->node, sp810->timclk_index); - - if (WARN_ON(IS_ERR(sp810->refclk) || IS_ERR(sp810->timclk))) - return -ENOENT; - - /* Select fastest parent */ - if (clk_get_rate(sp810->refclk) > clk_get_rate(sp810->timclk)) - new_parent = sp810->refclk; - else - new_parent = sp810->timclk; - - /* Switch the parent if necessary */ - if (old_parent != new_parent) { - clk_prepare(new_parent); - clk_set_parent(hw->clk, new_parent); - clk_unprepare(old_parent); - } - - return 0; -} - -static void clk_sp810_timerclken_unprepare(struct clk_hw *hw) -{ - struct clk_sp810_timerclken *timerclken = to_clk_sp810_timerclken(hw); - struct clk_sp810 *sp810 = timerclken->sp810; - - clk_put(sp810->timclk); - clk_put(sp810->refclk); -} - static const struct clk_ops clk_sp810_timerclken_ops = { - .prepare = clk_sp810_timerclken_prepare, - .unprepare = clk_sp810_timerclken_unprepare, .get_parent = clk_sp810_timerclken_get_parent, .set_parent = clk_sp810_timerclken_set_parent, }; @@ -128,8 +78,8 @@ static struct clk *clk_sp810_timerclken_of_get(struct of_phandle_args *clkspec, { struct clk_sp810 *sp810 = data; - if (WARN_ON(clkspec->args_count != 1 || clkspec->args[0] > - ARRAY_SIZE(sp810->timerclken))) + if (WARN_ON(clkspec->args_count != 1 || + clkspec->args[0] >= ARRAY_SIZE(sp810->timerclken))) return NULL; return sp810->timerclken[clkspec->args[0]].clk; @@ -139,24 +89,18 @@ static void __init clk_sp810_of_setup(struct device_node *node) { struct clk_sp810 *sp810 = kzalloc(sizeof(*sp810), GFP_KERNEL); const char *parent_names[2]; + int num = ARRAY_SIZE(parent_names); char name[12]; struct clk_init_data init; int i; + bool deprecated; if (!sp810) { pr_err("Failed to allocate memory for SP810!\n"); return; } - sp810->refclk_index = of_property_match_string(node, "clock-names", - "refclk"); - parent_names[0] = of_clk_get_parent_name(node, sp810->refclk_index); - - sp810->timclk_index = of_property_match_string(node, "clock-names", - "timclk"); - parent_names[1] = of_clk_get_parent_name(node, sp810->timclk_index); - - if (!parent_names[0] || !parent_names[1]) { + if (of_clk_parent_fill(node, parent_names, num) != num) { pr_warn("Failed to obtain parent clocks for SP810!\n"); return; } @@ -169,7 +113,9 @@ static void __init clk_sp810_of_setup(struct device_node *node) init.ops = &clk_sp810_timerclken_ops; init.flags = CLK_IS_BASIC; init.parent_names = parent_names; - init.num_parents = ARRAY_SIZE(parent_names); + init.num_parents = num; + + deprecated = !of_find_property(node, "assigned-clock-parents", NULL); for (i = 0; i < ARRAY_SIZE(sp810->timerclken); i++) { snprintf(name, ARRAY_SIZE(name), "timerclken%d", i); @@ -178,6 +124,15 @@ static void __init clk_sp810_of_setup(struct device_node *node) sp810->timerclken[i].channel = i; sp810->timerclken[i].hw.init = &init; + /* + * If DT isn't setting the parent, force it to be + * the 1 MHz clock without going through the framework. + * We do this before clk_register() so that it can determine + * the parent and setup the tree properly. + */ + if (deprecated) + init.ops->set_parent(&sp810->timerclken[i].hw, 1); + sp810->timerclken[i].clk = clk_register(NULL, &sp810->timerclken[i].hw); WARN_ON(IS_ERR(sp810->timerclken[i].clk)); diff --git a/drivers/clk/versatile/clk-versatile.c b/drivers/clk/versatile/clk-versatile.c index 7a4f8635bd1e..a89a927567e0 100644 --- a/drivers/clk/versatile/clk-versatile.c +++ b/drivers/clk/versatile/clk-versatile.c @@ -8,8 +8,6 @@ * published by the Free Software Foundation. */ #include <linux/clk-provider.h> -#include <linux/clk.h> -#include <linux/clkdev.h> #include <linux/err.h> #include <linux/of.h> #include <linux/of_address.h> @@ -35,7 +33,7 @@ static const struct icst_params cp_auxosc_params = { .idx2s = icst525_idx2s, }; -static const struct clk_icst_desc __initdata cm_auxosc_desc = { +static const struct clk_icst_desc cm_auxosc_desc __initconst = { .params = &cp_auxosc_params, .vco_offset = 0x1c, .lock_offset = INTEGRATOR_HDR_LOCK_OFFSET, diff --git a/drivers/clk/zte/Makefile b/drivers/clk/zte/Makefile index 95b707c18108..74005aa322a2 100644 --- a/drivers/clk/zte/Makefile +++ b/drivers/clk/zte/Makefile @@ -1,2 +1,2 @@ -obj-y := clk-pll.o +obj-y := clk.o obj-$(CONFIG_SOC_ZX296702) += clk-zx296702.o diff --git a/drivers/clk/zte/clk-zx296702.c b/drivers/clk/zte/clk-zx296702.c index 929d033594af..ebd20d852e73 100644 --- a/drivers/clk/zte/clk-zx296702.c +++ b/drivers/clk/zte/clk-zx296702.c @@ -36,10 +36,21 @@ static struct clk_onecell_data lsp1clk_data; #define CLK_MUX1 (topcrm_base + 0x8c) #define CLK_SDMMC1 (lsp0crpm_base + 0x0c) +#define CLK_GPIO (lsp0crpm_base + 0x2c) +#define CLK_SPDIF0 (lsp0crpm_base + 0x10) +#define SPDIF0_DIV (lsp0crpm_base + 0x14) +#define CLK_I2S0 (lsp0crpm_base + 0x18) +#define I2S0_DIV (lsp0crpm_base + 0x1c) +#define CLK_I2S1 (lsp0crpm_base + 0x20) +#define I2S1_DIV (lsp0crpm_base + 0x24) +#define CLK_I2S2 (lsp0crpm_base + 0x34) +#define I2S2_DIV (lsp0crpm_base + 0x38) #define CLK_UART0 (lsp1crpm_base + 0x20) #define CLK_UART1 (lsp1crpm_base + 0x24) #define CLK_SDMMC0 (lsp1crpm_base + 0x2c) +#define CLK_SPDIF1 (lsp1crpm_base + 0x30) +#define SPDIF1_DIV (lsp1crpm_base + 0x34) static const struct zx_pll_config pll_a9_config[] = { { .rate = 700000000, .cfg0 = 0x800405d1, .cfg1 = 0x04555555 }, @@ -72,104 +83,119 @@ static const struct clk_div_table sec_wclk_divider[] = { { /* sentinel */ } }; -static const char * matrix_aclk_sel[] = { +static const char * const matrix_aclk_sel[] = { "pll_mm0_198M", "osc", "clk_148M5", "pll_lsp_104M", }; -static const char * a9_wclk_sel[] = { +static const char * const a9_wclk_sel[] = { "pll_a9", "osc", "clk_500", "clk_250", }; -static const char * a9_as1_aclk_sel[] = { +static const char * const a9_as1_aclk_sel[] = { "clk_250", "osc", "pll_mm0_396M", "pll_mac_333M", }; -static const char * a9_trace_clkin_sel[] = { +static const char * const a9_trace_clkin_sel[] = { "clk_74M25", "pll_mm1_108M", "clk_125", "clk_148M5", }; -static const char * decppu_aclk_sel[] = { +static const char * const decppu_aclk_sel[] = { "clk_250", "pll_mm0_198M", "pll_lsp_104M", "pll_audio_294M912", }; -static const char * vou_main_wclk_sel[] = { +static const char * const vou_main_wclk_sel[] = { "clk_148M5", "clk_74M25", "clk_27", "pll_mm1_54M", }; -static const char * vou_scaler_wclk_sel[] = { +static const char * const vou_scaler_wclk_sel[] = { "clk_250", "pll_mac_333M", "pll_audio_294M912", "pll_mm0_198M", }; -static const char * r2d_wclk_sel[] = { +static const char * const r2d_wclk_sel[] = { "pll_audio_294M912", "pll_mac_333M", "pll_a9_350M", "pll_mm0_396M", }; -static const char * ddr_wclk_sel[] = { +static const char * const ddr_wclk_sel[] = { "pll_mac_333M", "pll_ddr_266M", "pll_audio_294M912", "pll_mm0_198M", }; -static const char * nand_wclk_sel[] = { +static const char * const nand_wclk_sel[] = { "pll_lsp_104M", "osc", }; -static const char * lsp_26_wclk_sel[] = { +static const char * const lsp_26_wclk_sel[] = { "pll_lsp_26M", "osc", }; -static const char * vl0_sel[] = { +static const char * const vl0_sel[] = { "vou_main_channel_div", "vou_aux_channel_div", }; -static const char * hdmi_sel[] = { +static const char * const hdmi_sel[] = { "vou_main_channel_wclk", "vou_aux_channel_wclk", }; -static const char * sdmmc0_wclk_sel[] = { +static const char * const sdmmc0_wclk_sel[] = { "lsp1_104M_wclk", "lsp1_26M_wclk", }; -static const char * sdmmc1_wclk_sel[] = { +static const char * const sdmmc1_wclk_sel[] = { "lsp0_104M_wclk", "lsp0_26M_wclk", }; -static const char * uart_wclk_sel[] = { +static const char * const uart_wclk_sel[] = { "lsp1_104M_wclk", "lsp1_26M_wclk", }; +static const char * const spdif0_wclk_sel[] = { + "lsp0_104M_wclk", + "lsp0_26M_wclk", +}; + +static const char * const spdif1_wclk_sel[] = { + "lsp1_104M_wclk", + "lsp1_26M_wclk", +}; + +static const char * const i2s_wclk_sel[] = { + "lsp0_104M_wclk", + "lsp0_26M_wclk", +}; + static inline struct clk *zx_divtbl(const char *name, const char *parent, void __iomem *reg, u8 shift, u8 width, const struct clk_div_table *table) @@ -185,7 +211,7 @@ static inline struct clk *zx_div(const char *name, const char *parent, reg, shift, width, 0, ®_lock); } -static inline struct clk *zx_mux(const char *name, const char **parents, +static inline struct clk *zx_mux(const char *name, const char * const *parents, int num_parents, void __iomem *reg, u8 shift, u8 width) { return clk_register_mux(NULL, name, parents, num_parents, @@ -196,7 +222,7 @@ static inline struct clk *zx_gate(const char *name, const char *parent, void __iomem *reg, u8 shift) { return clk_register_gate(NULL, name, parent, CLK_IGNORE_UNUSED, - reg, shift, 0, ®_lock); + reg, shift, CLK_SET_RATE_PARENT, ®_lock); } static void __init zx296702_top_clocks_init(struct device_node *np) @@ -585,7 +611,57 @@ static void __init zx296702_lsp0_clocks_init(struct device_node *np) clk[ZX296702_SDMMC1_WCLK] = zx_gate("sdmmc1_wclk", "sdmmc1_wclk_div", CLK_SDMMC1, 1); clk[ZX296702_SDMMC1_PCLK] = - zx_gate("sdmmc1_pclk", "lsp1_apb_pclk", CLK_SDMMC1, 0); + zx_gate("sdmmc1_pclk", "lsp0_apb_pclk", CLK_SDMMC1, 0); + + clk[ZX296702_GPIO_CLK] = + zx_gate("gpio_clk", "lsp0_apb_pclk", CLK_GPIO, 0); + + /* SPDIF */ + clk[ZX296702_SPDIF0_WCLK_MUX] = + zx_mux("spdif0_wclk_mux", spdif0_wclk_sel, + ARRAY_SIZE(spdif0_wclk_sel), CLK_SPDIF0, 4, 1); + clk[ZX296702_SPDIF0_WCLK] = + zx_gate("spdif0_wclk", "spdif0_wclk_mux", CLK_SPDIF0, 1); + clk[ZX296702_SPDIF0_PCLK] = + zx_gate("spdif0_pclk", "lsp0_apb_pclk", CLK_SPDIF0, 0); + + clk[ZX296702_SPDIF0_DIV] = + clk_register_zx_audio("spdif0_div", "spdif0_wclk", 0, + SPDIF0_DIV); + + /* I2S */ + clk[ZX296702_I2S0_WCLK_MUX] = + zx_mux("i2s0_wclk_mux", i2s_wclk_sel, + ARRAY_SIZE(i2s_wclk_sel), CLK_I2S0, 4, 1); + clk[ZX296702_I2S0_WCLK] = + zx_gate("i2s0_wclk", "i2s0_wclk_mux", CLK_I2S0, 1); + clk[ZX296702_I2S0_PCLK] = + zx_gate("i2s0_pclk", "lsp0_apb_pclk", CLK_I2S0, 0); + + clk[ZX296702_I2S0_DIV] = + clk_register_zx_audio("i2s0_div", "i2s0_wclk", 0, I2S0_DIV); + + clk[ZX296702_I2S1_WCLK_MUX] = + zx_mux("i2s1_wclk_mux", i2s_wclk_sel, + ARRAY_SIZE(i2s_wclk_sel), CLK_I2S1, 4, 1); + clk[ZX296702_I2S1_WCLK] = + zx_gate("i2s1_wclk", "i2s1_wclk_mux", CLK_I2S1, 1); + clk[ZX296702_I2S1_PCLK] = + zx_gate("i2s1_pclk", "lsp0_apb_pclk", CLK_I2S1, 0); + + clk[ZX296702_I2S1_DIV] = + clk_register_zx_audio("i2s1_div", "i2s1_wclk", 0, I2S1_DIV); + + clk[ZX296702_I2S2_WCLK_MUX] = + zx_mux("i2s2_wclk_mux", i2s_wclk_sel, + ARRAY_SIZE(i2s_wclk_sel), CLK_I2S2, 4, 1); + clk[ZX296702_I2S2_WCLK] = + zx_gate("i2s2_wclk", "i2s2_wclk_mux", CLK_I2S2, 1); + clk[ZX296702_I2S2_PCLK] = + zx_gate("i2s2_pclk", "lsp0_apb_pclk", CLK_I2S2, 0); + + clk[ZX296702_I2S2_DIV] = + clk_register_zx_audio("i2s2_div", "i2s2_wclk", 0, I2S2_DIV); for (i = 0; i < ARRAY_SIZE(lsp0clk); i++) { if (IS_ERR(clk[i])) { @@ -641,6 +717,18 @@ static void __init zx296702_lsp1_clocks_init(struct device_node *np) clk[ZX296702_SDMMC0_PCLK] = zx_gate("sdmmc0_pclk", "lsp1_apb_pclk", CLK_SDMMC0, 0); + clk[ZX296702_SPDIF1_WCLK_MUX] = + zx_mux("spdif1_wclk_mux", spdif1_wclk_sel, + ARRAY_SIZE(spdif1_wclk_sel), CLK_SPDIF1, 4, 1); + clk[ZX296702_SPDIF1_WCLK] = + zx_gate("spdif1_wclk", "spdif1_wclk_mux", CLK_SPDIF1, 1); + clk[ZX296702_SPDIF1_PCLK] = + zx_gate("spdif1_pclk", "lsp1_apb_pclk", CLK_SPDIF1, 0); + + clk[ZX296702_SPDIF1_DIV] = + clk_register_zx_audio("spdif1_div", "spdif1_wclk", 0, + SPDIF1_DIV); + for (i = 0; i < ARRAY_SIZE(lsp1clk); i++) { if (IS_ERR(clk[i])) { pr_err("zx296702 clk %d: register failed with %ld\n", diff --git a/drivers/clk/zte/clk-pll.c b/drivers/clk/zte/clk.c index c3b221ae6cd7..7c73c538c43d 100644 --- a/drivers/clk/zte/clk-pll.c +++ b/drivers/clk/zte/clk.c @@ -13,10 +13,12 @@ #include <linux/iopoll.h> #include <linux/slab.h> #include <linux/spinlock.h> +#include <asm/div64.h> #include "clk.h" #define to_clk_zx_pll(_hw) container_of(_hw, struct clk_zx_pll, hw) +#define to_clk_zx_audio(_hw) container_of(_hw, struct clk_zx_audio, hw) #define CFG0_CFG1_OFFSET 4 #define LOCK_FLAG BIT(30) @@ -141,8 +143,9 @@ static const struct clk_ops zx_pll_ops = { }; struct clk *clk_register_zx_pll(const char *name, const char *parent_name, - unsigned long flags, void __iomem *reg_base, - const struct zx_pll_config *lookup_table, int count, spinlock_t *lock) + unsigned long flags, void __iomem *reg_base, + const struct zx_pll_config *lookup_table, + int count, spinlock_t *lock) { struct clk_zx_pll *zx_pll; struct clk *clk; @@ -170,3 +173,137 @@ struct clk *clk_register_zx_pll(const char *name, const char *parent_name, return clk; } + +#define BPAR 1000000 +static u32 calc_reg(u32 parent_rate, u32 rate) +{ + u32 sel, integ, fra_div, tmp; + u64 tmp64 = (u64)parent_rate * BPAR; + + do_div(tmp64, rate); + integ = (u32)tmp64 / BPAR; + integ = integ >> 1; + + tmp = (u32)tmp64 % BPAR; + sel = tmp / BPAR; + + tmp = tmp % BPAR; + fra_div = tmp * 0xff / BPAR; + tmp = (sel << 24) | (integ << 16) | (0xff << 8) | fra_div; + + /* Set I2S integer divider as 1. This bit is reserved for SPDIF + * and do no harm. + */ + tmp |= BIT(28); + return tmp; +} + +static u32 calc_rate(u32 reg, u32 parent_rate) +{ + u32 sel, integ, fra_div, tmp; + u64 tmp64 = (u64)parent_rate * BPAR; + + tmp = reg; + sel = (tmp >> 24) & BIT(0); + integ = (tmp >> 16) & 0xff; + fra_div = tmp & 0xff; + + tmp = fra_div * BPAR; + tmp = tmp / 0xff; + tmp += sel * BPAR; + tmp += 2 * integ * BPAR; + do_div(tmp64, tmp); + + return (u32)tmp64; +} + +static unsigned long zx_audio_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_zx_audio *zx_audio = to_clk_zx_audio(hw); + u32 reg; + + reg = readl_relaxed(zx_audio->reg_base); + return calc_rate(reg, parent_rate); +} + +static long zx_audio_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + u32 reg; + + if (rate * 2 > *prate) + return -EINVAL; + + reg = calc_reg(*prate, rate); + return calc_rate(reg, *prate); +} + +static int zx_audio_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_zx_audio *zx_audio = to_clk_zx_audio(hw); + u32 reg; + + reg = calc_reg(parent_rate, rate); + writel_relaxed(reg, zx_audio->reg_base); + + return 0; +} + +#define ZX_AUDIO_EN BIT(25) +static int zx_audio_enable(struct clk_hw *hw) +{ + struct clk_zx_audio *zx_audio = to_clk_zx_audio(hw); + u32 reg; + + reg = readl_relaxed(zx_audio->reg_base); + writel_relaxed(reg & ~ZX_AUDIO_EN, zx_audio->reg_base); + return 0; +} + +static void zx_audio_disable(struct clk_hw *hw) +{ + struct clk_zx_audio *zx_audio = to_clk_zx_audio(hw); + u32 reg; + + reg = readl_relaxed(zx_audio->reg_base); + writel_relaxed(reg | ZX_AUDIO_EN, zx_audio->reg_base); +} + +static const struct clk_ops zx_audio_ops = { + .recalc_rate = zx_audio_recalc_rate, + .round_rate = zx_audio_round_rate, + .set_rate = zx_audio_set_rate, + .enable = zx_audio_enable, + .disable = zx_audio_disable, +}; + +struct clk *clk_register_zx_audio(const char *name, + const char * const parent_name, + unsigned long flags, + void __iomem *reg_base) +{ + struct clk_zx_audio *zx_audio; + struct clk *clk; + struct clk_init_data init; + + zx_audio = kzalloc(sizeof(*zx_audio), GFP_KERNEL); + if (!zx_audio) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = &zx_audio_ops; + init.flags = flags; + init.parent_names = parent_name ? &parent_name : NULL; + init.num_parents = parent_name ? 1 : 0; + + zx_audio->reg_base = reg_base; + zx_audio->hw.init = &init; + + clk = clk_register(NULL, &zx_audio->hw); + if (IS_ERR(clk)) + kfree(zx_audio); + + return clk; +} diff --git a/drivers/clk/zte/clk.h b/drivers/clk/zte/clk.h index 0914a82d0535..65ae08b818d3 100644 --- a/drivers/clk/zte/clk.h +++ b/drivers/clk/zte/clk.h @@ -29,4 +29,13 @@ struct clk_zx_pll { struct clk *clk_register_zx_pll(const char *name, const char *parent_name, unsigned long flags, void __iomem *reg_base, const struct zx_pll_config *lookup_table, int count, spinlock_t *lock); + +struct clk_zx_audio { + struct clk_hw hw; + void __iomem *reg_base; +}; + +struct clk *clk_register_zx_audio(const char *name, + const char * const parent_name, + unsigned long flags, void __iomem *reg_base); #endif diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c index de614384bb44..38a65c3e62fc 100644 --- a/drivers/clk/zynq/clkc.c +++ b/drivers/clk/zynq/clkc.c @@ -19,6 +19,7 @@ */ #include <linux/clk/zynq.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of.h> #include <linux/of_address.h> diff --git a/drivers/clocksource/cadence_ttc_timer.c b/drivers/clocksource/cadence_ttc_timer.c index 510c8a1d37b3..5ea91e3818d0 100644 --- a/drivers/clocksource/cadence_ttc_timer.c +++ b/drivers/clocksource/cadence_ttc_timer.c @@ -16,7 +16,6 @@ */ #include <linux/clk.h> -#include <linux/clk-provider.h> #include <linux/interrupt.h> #include <linux/clockchips.h> #include <linux/of_address.h> diff --git a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c index eb8ac3097ff5..18b7727bdc57 100644 --- a/drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c +++ b/drivers/gpu/drm/msm/dsi/pll/dsi_pll_28nm.c @@ -455,7 +455,7 @@ static void dsi_pll_28nm_save_state(struct msm_dsi_pll *pll) cached_state->postdiv1 = pll_read(base + REG_DSI_28nm_PHY_PLL_POSTDIV1_CFG); cached_state->byte_mux = pll_read(base + REG_DSI_28nm_PHY_PLL_VREG_CFG); - cached_state->vco_rate = __clk_get_rate(pll->clk_hw.clk); + cached_state->vco_rate = clk_hw_get_rate(&pll->clk_hw); } static int dsi_pll_28nm_restore_state(struct msm_dsi_pll *pll) @@ -466,7 +466,7 @@ static int dsi_pll_28nm_restore_state(struct msm_dsi_pll *pll) int ret; if ((cached_state->vco_rate != 0) && - (cached_state->vco_rate == __clk_get_rate(pll->clk_hw.clk))) { + (cached_state->vco_rate == clk_hw_get_rate(&pll->clk_hw))) { ret = dsi_pll_28nm_clk_set_rate(&pll->clk_hw, cached_state->vco_rate, 0); if (ret) { diff --git a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c index 5455bf3d5a91..b8e2f611fd47 100644 --- a/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c +++ b/drivers/staging/clocking-wizard/clk-xlnx-clock-wizard.c @@ -19,6 +19,7 @@ */ #include <linux/platform_device.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/slab.h> #include <linux/io.h> diff --git a/drivers/video/fbdev/simplefb.c b/drivers/video/fbdev/simplefb.c index 1085c0432158..52c5c7e63b52 100644 --- a/drivers/video/fbdev/simplefb.c +++ b/drivers/video/fbdev/simplefb.c @@ -26,6 +26,7 @@ #include <linux/module.h> #include <linux/platform_data/simplefb.h> #include <linux/platform_device.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/of_platform.h> diff --git a/include/dt-bindings/clock/exynos3250.h b/include/dt-bindings/clock/exynos3250.h index aab088d30199..63d01c15d2b3 100644 --- a/include/dt-bindings/clock/exynos3250.h +++ b/include/dt-bindings/clock/exynos3250.h @@ -31,6 +31,7 @@ #define CLK_FOUT_VPLL 4 #define CLK_FOUT_UPLL 5 #define CLK_FOUT_MPLL 6 +#define CLK_ARM_CLK 7 /* Muxes */ #define CLK_MOUT_MPLL_USER_L 16 diff --git a/include/dt-bindings/clock/exynos5250.h b/include/dt-bindings/clock/exynos5250.h index 4273891dc78e..8183d1c237d9 100644 --- a/include/dt-bindings/clock/exynos5250.h +++ b/include/dt-bindings/clock/exynos5250.h @@ -21,6 +21,7 @@ #define CLK_FOUT_CPLL 6 #define CLK_FOUT_EPLL 7 #define CLK_FOUT_VPLL 8 +#define CLK_ARM_CLK 9 /* gate for special clocks (sclk) */ #define CLK_SCLK_CAM_BAYER 128 diff --git a/include/dt-bindings/clock/imx6ul-clock.h b/include/dt-bindings/clock/imx6ul-clock.h new file mode 100644 index 000000000000..c343894ce603 --- /dev/null +++ b/include/dt-bindings/clock/imx6ul-clock.h @@ -0,0 +1,240 @@ +/* + * Copyright (C) 2015 Freescale Semiconductor, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + */ + +#ifndef __DT_BINDINGS_CLOCK_IMX6UL_H +#define __DT_BINDINGS_CLOCK_IMX6UL_H + +#define IMX6UL_CLK_DUMMY 0 +#define IMX6UL_CLK_CKIL 1 +#define IMX6UL_CLK_CKIH 2 +#define IMX6UL_CLK_OSC 3 +#define IMX6UL_PLL1_BYPASS_SRC 4 +#define IMX6UL_PLL2_BYPASS_SRC 5 +#define IMX6UL_PLL3_BYPASS_SRC 6 +#define IMX6UL_PLL4_BYPASS_SRC 7 +#define IMX6UL_PLL5_BYPASS_SRC 8 +#define IMX6UL_PLL6_BYPASS_SRC 9 +#define IMX6UL_PLL7_BYPASS_SRC 10 +#define IMX6UL_CLK_PLL1 11 +#define IMX6UL_CLK_PLL2 12 +#define IMX6UL_CLK_PLL3 13 +#define IMX6UL_CLK_PLL4 14 +#define IMX6UL_CLK_PLL5 15 +#define IMX6UL_CLK_PLL6 16 +#define IMX6UL_CLK_PLL7 17 +#define IMX6UL_PLL1_BYPASS 18 +#define IMX6UL_PLL2_BYPASS 19 +#define IMX6UL_PLL3_BYPASS 20 +#define IMX6UL_PLL4_BYPASS 21 +#define IMX6UL_PLL5_BYPASS 22 +#define IMX6UL_PLL6_BYPASS 23 +#define IMX6UL_PLL7_BYPASS 24 +#define IMX6UL_CLK_PLL1_SYS 25 +#define IMX6UL_CLK_PLL2_BUS 26 +#define IMX6UL_CLK_PLL3_USB_OTG 27 +#define IMX6UL_CLK_PLL4_AUDIO 28 +#define IMX6UL_CLK_PLL5_VIDEO 29 +#define IMX6UL_CLK_PLL6_ENET 30 +#define IMX6UL_CLK_PLL7_USB_HOST 31 +#define IMX6UL_CLK_USBPHY1 32 +#define IMX6UL_CLK_USBPHY2 33 +#define IMX6UL_CLK_USBPHY1_GATE 34 +#define IMX6UL_CLK_USBPHY2_GATE 35 +#define IMX6UL_CLK_PLL2_PFD0 36 +#define IMX6UL_CLK_PLL2_PFD1 37 +#define IMX6UL_CLK_PLL2_PFD2 38 +#define IMX6UL_CLK_PLL2_PFD3 39 +#define IMX6UL_CLK_PLL3_PFD0 40 +#define IMX6UL_CLK_PLL3_PFD1 41 +#define IMX6UL_CLK_PLL3_PFD2 42 +#define IMX6UL_CLK_PLL3_PFD3 43 +#define IMX6UL_CLK_ENET_REF 44 +#define IMX6UL_CLK_ENET2_REF 45 +#define IMX6UL_CLK_ENET2_REF_125M 46 +#define IMX6UL_CLK_ENET_PTP_REF 47 +#define IMX6UL_CLK_ENET_PTP 48 +#define IMX6UL_CLK_PLL4_POST_DIV 49 +#define IMX6UL_CLK_PLL4_AUDIO_DIV 50 +#define IMX6UL_CLK_PLL5_POST_DIV 51 +#define IMX6UL_CLK_PLL5_VIDEO_DIV 52 +#define IMX6UL_CLK_PLL2_198M 53 +#define IMX6UL_CLK_PLL3_80M 54 +#define IMX6UL_CLK_PLL3_60M 55 +#define IMX6UL_CLK_STEP 56 +#define IMX6UL_CLK_PLL1_SW 57 +#define IMX6UL_CLK_AXI_ALT_SEL 58 +#define IMX6UL_CLK_AXI_SEL 59 +#define IMX6UL_CLK_PERIPH_PRE 60 +#define IMX6UL_CLK_PERIPH2_PRE 61 +#define IMX6UL_CLK_PERIPH_CLK2_SEL 62 +#define IMX6UL_CLK_PERIPH2_CLK2_SEL 63 +#define IMX6UL_CLK_USDHC1_SEL 64 +#define IMX6UL_CLK_USDHC2_SEL 65 +#define IMX6UL_CLK_BCH_SEL 66 +#define IMX6UL_CLK_GPMI_SEL 67 +#define IMX6UL_CLK_EIM_SLOW_SEL 68 +#define IMX6UL_CLK_SPDIF_SEL 69 +#define IMX6UL_CLK_SAI1_SEL 70 +#define IMX6UL_CLK_SAI2_SEL 71 +#define IMX6UL_CLK_SAI3_SEL 72 +#define IMX6UL_CLK_LCDIF_PRE_SEL 73 +#define IMX6UL_CLK_SIM_PRE_SEL 74 +#define IMX6UL_CLK_LDB_DI0_SEL 75 +#define IMX6UL_CLK_LDB_DI1_SEL 76 +#define IMX6UL_CLK_ENFC_SEL 77 +#define IMX6UL_CLK_CAN_SEL 78 +#define IMX6UL_CLK_ECSPI_SEL 79 +#define IMX6UL_CLK_UART_SEL 80 +#define IMX6UL_CLK_QSPI1_SEL 81 +#define IMX6UL_CLK_PERCLK_SEL 82 +#define IMX6UL_CLK_LCDIF_SEL 83 +#define IMX6UL_CLK_SIM_SEL 84 +#define IMX6UL_CLK_PERIPH 85 +#define IMX6UL_CLK_PERIPH2 86 +#define IMX6UL_CLK_LDB_DI0_DIV_3_5 87 +#define IMX6UL_CLK_LDB_DI0_DIV_7 88 +#define IMX6UL_CLK_LDB_DI1_DIV_3_5 89 +#define IMX6UL_CLK_LDB_DI1_DIV_7 90 +#define IMX6UL_CLK_LDB_DI0_DIV_SEL 91 +#define IMX6UL_CLK_LDB_DI1_DIV_SEL 92 +#define IMX6UL_CLK_ARM 93 +#define IMX6UL_CLK_PERIPH_CLK2 94 +#define IMX6UL_CLK_PERIPH2_CLK2 95 +#define IMX6UL_CLK_AHB 96 +#define IMX6UL_CLK_MMDC_PODF 97 +#define IMX6UL_CLK_AXI_PODF 98 +#define IMX6UL_CLK_PERCLK 99 +#define IMX6UL_CLK_IPG 100 +#define IMX6UL_CLK_USDHC1_PODF 101 +#define IMX6UL_CLK_USDHC2_PODF 102 +#define IMX6UL_CLK_BCH_PODF 103 +#define IMX6UL_CLK_GPMI_PODF 104 +#define IMX6UL_CLK_EIM_SLOW_PODF 105 +#define IMX6UL_CLK_SPDIF_PRED 106 +#define IMX6UL_CLK_SPDIF_PODF 107 +#define IMX6UL_CLK_SAI1_PRED 108 +#define IMX6UL_CLK_SAI1_PODF 109 +#define IMX6UL_CLK_SAI2_PRED 110 +#define IMX6UL_CLK_SAI2_PODF 111 +#define IMX6UL_CLK_SAI3_PRED 112 +#define IMX6UL_CLK_SAI3_PODF 113 +#define IMX6UL_CLK_LCDIF_PRED 114 +#define IMX6UL_CLK_LCDIF_PODF 115 +#define IMX6UL_CLK_SIM_PODF 116 +#define IMX6UL_CLK_QSPI1_PDOF 117 +#define IMX6UL_CLK_ENFC_PRED 118 +#define IMX6UL_CLK_ENFC_PODF 119 +#define IMX6UL_CLK_CAN_PODF 120 +#define IMX6UL_CLK_ECSPI_PODF 121 +#define IMX6UL_CLK_UART_PODF 122 +#define IMX6UL_CLK_ADC1 123 +#define IMX6UL_CLK_ADC2 124 +#define IMX6UL_CLK_AIPSTZ1 125 +#define IMX6UL_CLK_AIPSTZ2 126 +#define IMX6UL_CLK_AIPSTZ3 127 +#define IMX6UL_CLK_APBHDMA 128 +#define IMX6UL_CLK_ASRC_IPG 129 +#define IMX6UL_CLK_ASRC_MEM 130 +#define IMX6UL_CLK_GPMI_BCH_APB 131 +#define IMX6UL_CLK_GPMI_BCH 132 +#define IMX6UL_CLK_GPMI_IO 133 +#define IMX6UL_CLK_GPMI_APB 134 +#define IMX6UL_CLK_CAAM_MEM 135 +#define IMX6UL_CLK_CAAM_ACLK 136 +#define IMX6UL_CLK_CAAM_IPG 137 +#define IMX6UL_CLK_CSI 138 +#define IMX6UL_CLK_ECSPI1 139 +#define IMX6UL_CLK_ECSPI2 140 +#define IMX6UL_CLK_ECSPI3 141 +#define IMX6UL_CLK_ECSPI4 142 +#define IMX6UL_CLK_EIM 143 +#define IMX6UL_CLK_ENET 144 +#define IMX6UL_CLK_ENET_AHB 145 +#define IMX6UL_CLK_EPIT1 146 +#define IMX6UL_CLK_EPIT2 147 +#define IMX6UL_CLK_CAN1_IPG 148 +#define IMX6UL_CLK_CAN1_SERIAL 149 +#define IMX6UL_CLK_CAN2_IPG 150 +#define IMX6UL_CLK_CAN2_SERIAL 151 +#define IMX6UL_CLK_GPT1_BUS 152 +#define IMX6UL_CLK_GPT1_SERIAL 153 +#define IMX6UL_CLK_GPT2_BUS 154 +#define IMX6UL_CLK_GPT2_SERIAL 155 +#define IMX6UL_CLK_I2C1 156 +#define IMX6UL_CLK_I2C2 157 +#define IMX6UL_CLK_I2C3 158 +#define IMX6UL_CLK_I2C4 159 +#define IMX6UL_CLK_IOMUXC 160 +#define IMX6UL_CLK_LCDIF_APB 161 +#define IMX6UL_CLK_LCDIF_PIX 162 +#define IMX6UL_CLK_MMDC_P0_FAST 163 +#define IMX6UL_CLK_MMDC_P0_IPG 164 +#define IMX6UL_CLK_OCOTP 165 +#define IMX6UL_CLK_OCRAM 166 +#define IMX6UL_CLK_PWM1 167 +#define IMX6UL_CLK_PWM2 168 +#define IMX6UL_CLK_PWM3 169 +#define IMX6UL_CLK_PWM4 170 +#define IMX6UL_CLK_PWM5 171 +#define IMX6UL_CLK_PWM6 172 +#define IMX6UL_CLK_PWM7 173 +#define IMX6UL_CLK_PWM8 174 +#define IMX6UL_CLK_PXP 175 +#define IMX6UL_CLK_QSPI 176 +#define IMX6UL_CLK_ROM 177 +#define IMX6UL_CLK_SAI1 178 +#define IMX6UL_CLK_SAI1_IPG 179 +#define IMX6UL_CLK_SAI2 180 +#define IMX6UL_CLK_SAI2_IPG 181 +#define IMX6UL_CLK_SAI3 182 +#define IMX6UL_CLK_SAI3_IPG 183 +#define IMX6UL_CLK_SDMA 184 +#define IMX6UL_CLK_SIM 185 +#define IMX6UL_CLK_SIM_S 186 +#define IMX6UL_CLK_SPBA 187 +#define IMX6UL_CLK_SPDIF 188 +#define IMX6UL_CLK_UART1_IPG 189 +#define IMX6UL_CLK_UART1_SERIAL 190 +#define IMX6UL_CLK_UART2_IPG 191 +#define IMX6UL_CLK_UART2_SERIAL 192 +#define IMX6UL_CLK_UART3_IPG 193 +#define IMX6UL_CLK_UART3_SERIAL 194 +#define IMX6UL_CLK_UART4_IPG 195 +#define IMX6UL_CLK_UART4_SERIAL 196 +#define IMX6UL_CLK_UART5_IPG 197 +#define IMX6UL_CLK_UART5_SERIAL 198 +#define IMX6UL_CLK_UART6_IPG 199 +#define IMX6UL_CLK_UART6_SERIAL 200 +#define IMX6UL_CLK_UART7_IPG 201 +#define IMX6UL_CLK_UART7_SERIAL 202 +#define IMX6UL_CLK_UART8_IPG 203 +#define IMX6UL_CLK_UART8_SERIAL 204 +#define IMX6UL_CLK_USBOH3 205 +#define IMX6UL_CLK_USDHC1 206 +#define IMX6UL_CLK_USDHC2 207 +#define IMX6UL_CLK_WDOG1 208 +#define IMX6UL_CLK_WDOG2 209 +#define IMX6UL_CLK_WDOG3 210 +#define IMX6UL_CLK_LDB_DI0 211 +#define IMX6UL_CLK_AXI 212 +#define IMX6UL_CLK_SPDIF_GCLK 213 +#define IMX6UL_CLK_GPT_3M 214 +#define IMX6UL_CLK_SIM2 215 +#define IMX6UL_CLK_SIM1 216 +#define IMX6UL_CLK_IPP_DI0 217 +#define IMX6UL_CLK_IPP_DI1 218 +#define IMX6UL_CA7_SECONDARY_SEL 219 +#define IMX6UL_CLK_PER_BCH 220 +#define IMX6UL_CLK_CSI_SEL 221 +#define IMX6UL_CLK_CSI_PODF 222 +#define IMX6UL_CLK_PLL3_120M 223 + +#define IMX6UL_CLK_END 224 + +#endif /* __DT_BINDINGS_CLOCK_IMX6UL_H */ diff --git a/include/dt-bindings/clock/rk3066a-cru.h b/include/dt-bindings/clock/rk3066a-cru.h index bc1ed1dbd855..d3a9824ef646 100644 --- a/include/dt-bindings/clock/rk3066a-cru.h +++ b/include/dt-bindings/clock/rk3066a-cru.h @@ -13,6 +13,9 @@ * GNU General Public License for more details. */ +#ifndef _DT_BINDINGS_CLK_ROCKCHIP_RK3066A_H +#define _DT_BINDINGS_CLK_ROCKCHIP_RK3066A_H + #include <dt-bindings/clock/rk3188-cru-common.h> /* soft-reset indices */ @@ -33,3 +36,5 @@ #define SRST_HDMI 96 #define SRST_HDMI_APB 97 #define SRST_CIF1 111 + +#endif diff --git a/include/dt-bindings/clock/rk3188-cru-common.h b/include/dt-bindings/clock/rk3188-cru-common.h index 6a370503c954..8df77a7c030b 100644 --- a/include/dt-bindings/clock/rk3188-cru-common.h +++ b/include/dt-bindings/clock/rk3188-cru-common.h @@ -13,6 +13,9 @@ * GNU General Public License for more details. */ +#ifndef _DT_BINDINGS_CLK_ROCKCHIP_RK3188_COMMON_H +#define _DT_BINDINGS_CLK_ROCKCHIP_RK3188_COMMON_H + /* core clocks from */ #define PLL_APLL 1 #define PLL_DPLL 2 @@ -248,3 +251,5 @@ #define SRST_PTM1_ATB 141 #define SRST_CTM 142 #define SRST_TS 143 + +#endif diff --git a/include/dt-bindings/clock/rk3188-cru.h b/include/dt-bindings/clock/rk3188-cru.h index 9fac8edd3f9d..9f2e631f2651 100644 --- a/include/dt-bindings/clock/rk3188-cru.h +++ b/include/dt-bindings/clock/rk3188-cru.h @@ -13,6 +13,9 @@ * GNU General Public License for more details. */ +#ifndef _DT_BINDINGS_CLK_ROCKCHIP_RK3188_H +#define _DT_BINDINGS_CLK_ROCKCHIP_RK3188_H + #include <dt-bindings/clock/rk3188-cru-common.h> /* soft-reset indices */ @@ -49,3 +52,5 @@ #define SRST_GPU_BRIDGE 121 #define SRST_CTI3 123 #define SRST_CTI3_APB 124 + +#endif diff --git a/include/dt-bindings/clock/rk3288-cru.h b/include/dt-bindings/clock/rk3288-cru.h index dea419708d73..c719aacef14f 100644 --- a/include/dt-bindings/clock/rk3288-cru.h +++ b/include/dt-bindings/clock/rk3288-cru.h @@ -13,6 +13,9 @@ * GNU General Public License for more details. */ +#ifndef _DT_BINDINGS_CLK_ROCKCHIP_RK3288_H +#define _DT_BINDINGS_CLK_ROCKCHIP_RK3288_H + /* core clocks */ #define PLL_APLL 1 #define PLL_DPLL 2 @@ -376,3 +379,5 @@ #define SRST_TSP_CLKIN0 189 #define SRST_TSP_CLKIN1 190 #define SRST_TSP_27M 191 + +#endif diff --git a/include/dt-bindings/clock/rk3368-cru.h b/include/dt-bindings/clock/rk3368-cru.h new file mode 100644 index 000000000000..9c5dd9ba2f6c --- /dev/null +++ b/include/dt-bindings/clock/rk3368-cru.h @@ -0,0 +1,384 @@ +/* + * Copyright (c) 2015 Heiko Stuebner <heiko@sntech.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _DT_BINDINGS_CLK_ROCKCHIP_RK3368_H +#define _DT_BINDINGS_CLK_ROCKCHIP_RK3368_H + +/* core clocks */ +#define PLL_APLLB 1 +#define PLL_APLLL 2 +#define PLL_DPLL 3 +#define PLL_CPLL 4 +#define PLL_GPLL 5 +#define PLL_NPLL 6 +#define ARMCLKB 7 +#define ARMCLKL 8 + +/* sclk gates (special clocks) */ +#define SCLK_GPU_CORE 64 +#define SCLK_SPI0 65 +#define SCLK_SPI1 66 +#define SCLK_SPI2 67 +#define SCLK_SDMMC 68 +#define SCLK_SDIO0 69 +#define SCLK_EMMC 71 +#define SCLK_TSADC 72 +#define SCLK_SARADC 73 +#define SCLK_NANDC0 75 +#define SCLK_UART0 77 +#define SCLK_UART1 78 +#define SCLK_UART2 79 +#define SCLK_UART3 80 +#define SCLK_UART4 81 +#define SCLK_I2S_8CH 82 +#define SCLK_SPDIF_8CH 83 +#define SCLK_I2S_2CH 84 +#define SCLK_TIMER0 85 +#define SCLK_TIMER1 86 +#define SCLK_TIMER2 87 +#define SCLK_TIMER3 88 +#define SCLK_TIMER4 89 +#define SCLK_TIMER5 90 +#define SCLK_TIMER6 91 +#define SCLK_OTGPHY0 93 +#define SCLK_OTG_ADP 96 +#define SCLK_HSICPHY480M 97 +#define SCLK_HSICPHY12M 98 +#define SCLK_MACREF 99 +#define SCLK_VOP0_PWM 100 +#define SCLK_MAC_RX 102 +#define SCLK_MAC_TX 103 +#define SCLK_EDP_24M 104 +#define SCLK_EDP 105 +#define SCLK_RGA 106 +#define SCLK_ISP 107 +#define SCLK_HDCP 108 +#define SCLK_HDMI_HDCP 109 +#define SCLK_HDMI_CEC 110 +#define SCLK_HEVC_CABAC 111 +#define SCLK_HEVC_CORE 112 +#define SCLK_I2S_8CH_OUT 113 +#define SCLK_SDMMC_DRV 114 +#define SCLK_SDIO0_DRV 115 +#define SCLK_EMMC_DRV 117 +#define SCLK_SDMMC_SAMPLE 118 +#define SCLK_SDIO0_SAMPLE 119 +#define SCLK_EMMC_SAMPLE 121 +#define SCLK_USBPHY480M 122 +#define SCLK_PVTM_CORE 123 +#define SCLK_PVTM_GPU 124 +#define SCLK_PVTM_PMU 125 +#define SCLK_SFC 126 +#define SCLK_MAC 127 +#define SCLK_MACREF_OUT 128 + +#define DCLK_VOP 190 +#define MCLK_CRYPTO 191 + +/* aclk gates */ +#define ACLK_GPU_MEM 192 +#define ACLK_GPU_CFG 193 +#define ACLK_DMAC_BUS 194 +#define ACLK_DMAC_PERI 195 +#define ACLK_PERI_MMU 196 +#define ACLK_GMAC 197 +#define ACLK_VOP 198 +#define ACLK_VOP_IEP 199 +#define ACLK_RGA 200 +#define ACLK_HDCP 201 +#define ACLK_IEP 202 +#define ACLK_VIO0_NOC 203 +#define ACLK_VIP 204 +#define ACLK_ISP 205 +#define ACLK_VIO1_NOC 206 +#define ACLK_VIDEO 208 +#define ACLK_BUS 209 +#define ACLK_PERI 210 + +/* pclk gates */ +#define PCLK_GPIO0 320 +#define PCLK_GPIO1 321 +#define PCLK_GPIO2 322 +#define PCLK_GPIO3 323 +#define PCLK_PMUGRF 324 +#define PCLK_MAILBOX 325 +#define PCLK_GRF 329 +#define PCLK_SGRF 330 +#define PCLK_PMU 331 +#define PCLK_I2C0 332 +#define PCLK_I2C1 333 +#define PCLK_I2C2 334 +#define PCLK_I2C3 335 +#define PCLK_I2C4 336 +#define PCLK_I2C5 337 +#define PCLK_SPI0 338 +#define PCLK_SPI1 339 +#define PCLK_SPI2 340 +#define PCLK_UART0 341 +#define PCLK_UART1 342 +#define PCLK_UART2 343 +#define PCLK_UART3 344 +#define PCLK_UART4 345 +#define PCLK_TSADC 346 +#define PCLK_SARADC 347 +#define PCLK_SIM 348 +#define PCLK_GMAC 349 +#define PCLK_PWM0 350 +#define PCLK_PWM1 351 +#define PCLK_TIMER0 353 +#define PCLK_TIMER1 354 +#define PCLK_EDP_CTRL 355 +#define PCLK_MIPI_DSI0 356 +#define PCLK_MIPI_CSI 358 +#define PCLK_HDCP 359 +#define PCLK_HDMI_CTRL 360 +#define PCLK_VIO_H2P 361 +#define PCLK_BUS 362 +#define PCLK_PERI 363 +#define PCLK_DDRUPCTL 364 +#define PCLK_DDRPHY 365 +#define PCLK_ISP 366 +#define PCLK_VIP 367 +#define PCLK_WDT 368 + +/* hclk gates */ +#define HCLK_SFC 448 +#define HCLK_OTG0 449 +#define HCLK_HOST0 450 +#define HCLK_HOST1 451 +#define HCLK_HSIC 452 +#define HCLK_NANDC0 453 +#define HCLK_TSP 455 +#define HCLK_SDMMC 456 +#define HCLK_SDIO0 457 +#define HCLK_EMMC 459 +#define HCLK_HSADC 460 +#define HCLK_CRYPTO 461 +#define HCLK_I2S_2CH 462 +#define HCLK_I2S_8CH 463 +#define HCLK_SPDIF 464 +#define HCLK_VOP 465 +#define HCLK_ROM 467 +#define HCLK_IEP 468 +#define HCLK_ISP 469 +#define HCLK_RGA 470 +#define HCLK_VIO_AHB_ARBI 471 +#define HCLK_VIO_NOC 472 +#define HCLK_VIP 473 +#define HCLK_VIO_H2P 474 +#define HCLK_VIO_HDCPMMU 475 +#define HCLK_VIDEO 476 +#define HCLK_BUS 477 +#define HCLK_PERI 478 + +#define CLK_NR_CLKS (HCLK_PERI + 1) + +/* soft-reset indices */ +#define SRST_CORE_B0 0 +#define SRST_CORE_B1 1 +#define SRST_CORE_B2 2 +#define SRST_CORE_B3 3 +#define SRST_CORE_B0_PO 4 +#define SRST_CORE_B1_PO 5 +#define SRST_CORE_B2_PO 6 +#define SRST_CORE_B3_PO 7 +#define SRST_L2_B 8 +#define SRST_ADB_B 9 +#define SRST_PD_CORE_B_NIU 10 +#define SRST_PDBUS_STRSYS 11 +#define SRST_SOCDBG_B 14 +#define SRST_CORE_B_DBG 15 + +#define SRST_DMAC1 18 +#define SRST_INTMEM 19 +#define SRST_ROM 20 +#define SRST_SPDIF8CH 21 +#define SRST_I2S8CH 23 +#define SRST_MAILBOX 24 +#define SRST_I2S2CH 25 +#define SRST_EFUSE_256 26 +#define SRST_MCU_SYS 28 +#define SRST_MCU_PO 29 +#define SRST_MCU_NOC 30 +#define SRST_EFUSE 31 + +#define SRST_GPIO0 32 +#define SRST_GPIO1 33 +#define SRST_GPIO2 34 +#define SRST_GPIO3 35 +#define SRST_GPIO4 36 +#define SRST_PMUGRF 41 +#define SRST_I2C0 42 +#define SRST_I2C1 43 +#define SRST_I2C2 44 +#define SRST_I2C3 45 +#define SRST_I2C4 46 +#define SRST_I2C5 47 + +#define SRST_DWPWM 48 +#define SRST_MMC_PERI 49 +#define SRST_PERIPH_MMU 50 +#define SRST_GRF 55 +#define SRST_PMU 56 +#define SRST_PERIPH_AXI 57 +#define SRST_PERIPH_AHB 58 +#define SRST_PERIPH_APB 59 +#define SRST_PERIPH_NIU 60 +#define SRST_PDPERI_AHB_ARBI 61 +#define SRST_EMEM 62 +#define SRST_USB_PERI 63 + +#define SRST_DMAC2 64 +#define SRST_MAC 66 +#define SRST_GPS 67 +#define SRST_RKPWM 69 +#define SRST_USBHOST0 72 +#define SRST_HSIC 73 +#define SRST_HSIC_AUX 74 +#define SRST_HSIC_PHY 75 +#define SRST_HSADC 76 +#define SRST_NANDC0 77 +#define SRST_SFC 79 + +#define SRST_SPI0 83 +#define SRST_SPI1 84 +#define SRST_SPI2 85 +#define SRST_SARADC 87 +#define SRST_PDALIVE_NIU 88 +#define SRST_PDPMU_INTMEM 89 +#define SRST_PDPMU_NIU 90 +#define SRST_SGRF 91 + +#define SRST_VIO_ARBI 96 +#define SRST_RGA_NIU 97 +#define SRST_VIO0_NIU_AXI 98 +#define SRST_VIO_NIU_AHB 99 +#define SRST_LCDC0_AXI 100 +#define SRST_LCDC0_AHB 101 +#define SRST_LCDC0_DCLK 102 +#define SRST_VIP 104 +#define SRST_RGA_CORE 105 +#define SRST_IEP_AXI 106 +#define SRST_IEP_AHB 107 +#define SRST_RGA_AXI 108 +#define SRST_RGA_AHB 109 +#define SRST_ISP 110 +#define SRST_EDP_24M 111 + +#define SRST_VIDEO_AXI 112 +#define SRST_VIDEO_AHB 113 +#define SRST_MIPIDPHYTX 114 +#define SRST_MIPIDSI0 115 +#define SRST_MIPIDPHYRX 116 +#define SRST_MIPICSI 117 +#define SRST_GPU 120 +#define SRST_HDMI 121 +#define SRST_EDP 122 +#define SRST_PMU_PVTM 123 +#define SRST_CORE_PVTM 124 +#define SRST_GPU_PVTM 125 +#define SRST_GPU_SYS 126 +#define SRST_GPU_MEM_NIU 127 + +#define SRST_MMC0 128 +#define SRST_SDIO0 129 +#define SRST_EMMC 131 +#define SRST_USBOTG_AHB 132 +#define SRST_USBOTG_PHY 133 +#define SRST_USBOTG_CON 134 +#define SRST_USBHOST0_AHB 135 +#define SRST_USBHOST0_PHY 136 +#define SRST_USBHOST0_CON 137 +#define SRST_USBOTG_UTMI 138 +#define SRST_USBHOST1_UTMI 139 +#define SRST_USB_ADP 141 + +#define SRST_CORESIGHT 144 +#define SRST_PD_CORE_AHB_NOC 145 +#define SRST_PD_CORE_APB_NOC 146 +#define SRST_GIC 148 +#define SRST_LCDC_PWM0 149 +#define SRST_RGA_H2P_BRG 153 +#define SRST_VIDEO 154 +#define SRST_GPU_CFG_NIU 157 +#define SRST_TSADC 159 + +#define SRST_DDRPHY0 160 +#define SRST_DDRPHY0_APB 161 +#define SRST_DDRCTRL0 162 +#define SRST_DDRCTRL0_APB 163 +#define SRST_VIDEO_NIU 165 +#define SRST_VIDEO_NIU_AHB 167 +#define SRST_DDRMSCH0 170 +#define SRST_PDBUS_AHB 173 +#define SRST_CRYPTO 174 + +#define SRST_UART0 179 +#define SRST_UART1 180 +#define SRST_UART2 181 +#define SRST_UART3 182 +#define SRST_UART4 183 +#define SRST_SIMC 186 +#define SRST_TSP 188 +#define SRST_TSP_CLKIN0 189 + +#define SRST_CORE_L0 192 +#define SRST_CORE_L1 193 +#define SRST_CORE_L2 194 +#define SRST_CORE_L3 195 +#define SRST_CORE_L0_PO 195 +#define SRST_CORE_L1_PO 197 +#define SRST_CORE_L2_PO 198 +#define SRST_CORE_L3_PO 199 +#define SRST_L2_L 200 +#define SRST_ADB_L 201 +#define SRST_PD_CORE_L_NIU 202 +#define SRST_CCI_SYS 203 +#define SRST_CCI_DDR 204 +#define SRST_CCI 205 +#define SRST_SOCDBG_L 206 +#define SRST_CORE_L_DBG 207 + +#define SRST_CORE_B0_NC 208 +#define SRST_CORE_B0_PO_NC 209 +#define SRST_L2_B_NC 210 +#define SRST_ADB_B_NC 211 +#define SRST_PD_CORE_B_NIU_NC 212 +#define SRST_PDBUS_STRSYS_NC 213 +#define SRST_CORE_L0_NC 214 +#define SRST_CORE_L0_PO_NC 215 +#define SRST_L2_L_NC 216 +#define SRST_ADB_L_NC 217 +#define SRST_PD_CORE_L_NIU_NC 218 +#define SRST_CCI_SYS_NC 219 +#define SRST_CCI_DDR_NC 220 +#define SRST_CCI_NC 221 +#define SRST_TRACE_NC 222 + +#define SRST_TIMER00 224 +#define SRST_TIMER01 225 +#define SRST_TIMER02 226 +#define SRST_TIMER03 227 +#define SRST_TIMER04 228 +#define SRST_TIMER05 229 +#define SRST_TIMER10 230 +#define SRST_TIMER11 231 +#define SRST_TIMER12 232 +#define SRST_TIMER13 233 +#define SRST_TIMER14 234 +#define SRST_TIMER15 235 +#define SRST_TIMER0_APB 236 +#define SRST_TIMER1_APB 237 + +#endif diff --git a/include/dt-bindings/clock/zx296702-clock.h b/include/dt-bindings/clock/zx296702-clock.h index e683dbb7e7c5..26ee564b0e68 100644 --- a/include/dt-bindings/clock/zx296702-clock.h +++ b/include/dt-bindings/clock/zx296702-clock.h @@ -153,7 +153,16 @@ #define ZX296702_I2S0_WCLK 9 #define ZX296702_I2S0_PCLK 10 #define ZX296702_I2S0_DIV 11 -#define ZX296702_LSP0CLK_END 12 +#define ZX296702_I2S1_WCLK_MUX 12 +#define ZX296702_I2S1_WCLK 13 +#define ZX296702_I2S1_PCLK 14 +#define ZX296702_I2S1_DIV 15 +#define ZX296702_I2S2_WCLK_MUX 16 +#define ZX296702_I2S2_WCLK 17 +#define ZX296702_I2S2_PCLK 18 +#define ZX296702_I2S2_DIV 19 +#define ZX296702_GPIO_CLK 20 +#define ZX296702_LSP0CLK_END 21 #define ZX296702_UART0_WCLK_MUX 0 #define ZX296702_UART0_WCLK 1 @@ -165,6 +174,10 @@ #define ZX296702_SDMMC0_WCLK_DIV 7 #define ZX296702_SDMMC0_WCLK 8 #define ZX296702_SDMMC0_PCLK 9 -#define ZX296702_LSP1CLK_END 10 +#define ZX296702_SPDIF1_WCLK_MUX 10 +#define ZX296702_SPDIF1_WCLK 11 +#define ZX296702_SPDIF1_PCLK 12 +#define ZX296702_SPDIF1_DIV 13 +#define ZX296702_LSP1CLK_END 14 #endif /* __DT_BINDINGS_CLOCK_ZX296702_H */ diff --git a/include/dt-bindings/reset/tegra124-car.h b/include/dt-bindings/reset/tegra124-car.h new file mode 100644 index 000000000000..070e4f6e7486 --- /dev/null +++ b/include/dt-bindings/reset/tegra124-car.h @@ -0,0 +1,12 @@ +/* + * This header provides Tegra124-specific constants for binding + * nvidia,tegra124-car. + */ + +#ifndef _DT_BINDINGS_RESET_TEGRA124_CAR_H +#define _DT_BINDINGS_RESET_TEGRA124_CAR_H + +#define TEGRA124_RESET(x) (6 * 32 + (x)) +#define TEGRA124_RST_DFLL_DVCO TEGRA124_RESET(0) + +#endif /* _DT_BINDINGS_RESET_TEGRA124_CAR_H */ diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 78842f46f152..3ecc07d0da77 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -11,7 +11,6 @@ #ifndef __LINUX_CLK_PROVIDER_H #define __LINUX_CLK_PROVIDER_H -#include <linux/clk.h> #include <linux/io.h> #include <linux/of.h> @@ -33,11 +32,34 @@ #define CLK_GET_ACCURACY_NOCACHE BIT(8) /* do not use the cached clk accuracy */ #define CLK_RECALC_NEW_RATES BIT(9) /* recalc rates after notifications */ +struct clk; struct clk_hw; struct clk_core; struct dentry; /** + * struct clk_rate_request - Structure encoding the clk constraints that + * a clock user might require. + * + * @rate: Requested clock rate. This field will be adjusted by + * clock drivers according to hardware capabilities. + * @min_rate: Minimum rate imposed by clk users. + * @max_rate: Maximum rate a imposed by clk users. + * @best_parent_rate: The best parent rate a parent can provide to fulfill the + * requested constraints. + * @best_parent_hw: The most appropriate parent clock that fulfills the + * requested constraints. + * + */ +struct clk_rate_request { + unsigned long rate; + unsigned long min_rate; + unsigned long max_rate; + unsigned long best_parent_rate; + struct clk_hw *best_parent_hw; +}; + +/** * struct clk_ops - Callback operations for hardware clocks; these are to * be provided by the clock implementation, and will be called by drivers * through the clk_* api. @@ -176,12 +198,8 @@ struct clk_ops { unsigned long parent_rate); long (*round_rate)(struct clk_hw *hw, unsigned long rate, unsigned long *parent_rate); - long (*determine_rate)(struct clk_hw *hw, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_hw); + int (*determine_rate)(struct clk_hw *hw, + struct clk_rate_request *req); int (*set_parent)(struct clk_hw *hw, u8 index); u8 (*get_parent)(struct clk_hw *hw); int (*set_rate)(struct clk_hw *hw, unsigned long rate, @@ -343,6 +361,9 @@ struct clk_div_table { * to the closest integer instead of the up one. * CLK_DIVIDER_READ_ONLY - The divider settings are preconfigured and should * not be changed by the clock framework. + * CLK_DIVIDER_MAX_AT_ZERO - For dividers which are like CLK_DIVIDER_ONE_BASED + * except when the value read from the register is zero, the divisor is + * 2^width of the field. */ struct clk_divider { struct clk_hw hw; @@ -360,6 +381,7 @@ struct clk_divider { #define CLK_DIVIDER_HIWORD_MASK BIT(3) #define CLK_DIVIDER_ROUND_CLOSEST BIT(4) #define CLK_DIVIDER_READ_ONLY BIT(5) +#define CLK_DIVIDER_MAX_AT_ZERO BIT(6) extern const struct clk_ops clk_divider_ops; @@ -550,6 +572,23 @@ struct clk *clk_register_gpio_gate(struct device *dev, const char *name, void of_gpio_clk_gate_setup(struct device_node *node); /** + * struct clk_gpio_mux - gpio controlled clock multiplexer + * + * @hw: see struct clk_gpio + * @gpiod: gpio descriptor to select the parent of this clock multiplexer + * + * Clock with a gpio control for selecting the parent clock. + * Implements .get_parent, .set_parent and .determine_rate + */ + +extern const struct clk_ops clk_gpio_mux_ops; +struct clk *clk_register_gpio_mux(struct device *dev, const char *name, + const char * const *parent_names, u8 num_parents, unsigned gpio, + bool active_low, unsigned long flags); + +void of_gpio_mux_clk_setup(struct device_node *node); + +/** * clk_register - allocate a new clock, register it and return an opaque cookie * @dev: device that is registering this clock * @hw: link to hardware-specific clock data @@ -568,31 +607,27 @@ void devm_clk_unregister(struct device *dev, struct clk *clk); /* helper functions */ const char *__clk_get_name(struct clk *clk); +const char *clk_hw_get_name(const struct clk_hw *hw); struct clk_hw *__clk_get_hw(struct clk *clk); -u8 __clk_get_num_parents(struct clk *clk); -struct clk *__clk_get_parent(struct clk *clk); -struct clk *clk_get_parent_by_index(struct clk *clk, u8 index); +unsigned int clk_hw_get_num_parents(const struct clk_hw *hw); +struct clk_hw *clk_hw_get_parent(const struct clk_hw *hw); +struct clk_hw *clk_hw_get_parent_by_index(const struct clk_hw *hw, + unsigned int index); unsigned int __clk_get_enable_count(struct clk *clk); -unsigned long __clk_get_rate(struct clk *clk); +unsigned long clk_hw_get_rate(const struct clk_hw *hw); unsigned long __clk_get_flags(struct clk *clk); -bool __clk_is_prepared(struct clk *clk); +unsigned long clk_hw_get_flags(const struct clk_hw *hw); +bool clk_hw_is_prepared(const struct clk_hw *hw); bool __clk_is_enabled(struct clk *clk); struct clk *__clk_lookup(const char *name); -long __clk_mux_determine_rate(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_p); -unsigned long __clk_determine_rate(struct clk_hw *core, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate); -long __clk_mux_determine_rate_closest(struct clk_hw *hw, unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_p); +int __clk_mux_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req); +int __clk_determine_rate(struct clk_hw *core, struct clk_rate_request *req); +int __clk_mux_determine_rate_closest(struct clk_hw *hw, + struct clk_rate_request *req); void clk_hw_reparent(struct clk_hw *hw, struct clk_hw *new_parent); +void clk_hw_set_rate_range(struct clk_hw *hw, unsigned long min_rate, + unsigned long max_rate); static inline void __clk_hw_set_clk(struct clk_hw *dst, struct clk_hw *src) { @@ -603,7 +638,7 @@ static inline void __clk_hw_set_clk(struct clk_hw *dst, struct clk_hw *src) /* * FIXME clock api without lock protection */ -unsigned long __clk_round_rate(struct clk *clk, unsigned long rate); +unsigned long clk_hw_round_rate(struct clk_hw *hw, unsigned long rate); struct of_device_id; diff --git a/include/linux/clk/clk-conf.h b/include/linux/clk/clk-conf.h index f3050e15f833..e0c362363c38 100644 --- a/include/linux/clk/clk-conf.h +++ b/include/linux/clk/clk-conf.h @@ -7,6 +7,8 @@ * published by the Free Software Foundation. */ +#include <linux/types.h> + struct device_node; #if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK) diff --git a/include/linux/clk/tegra.h b/include/linux/clk/tegra.h index 19c4208f4752..57bf7aab4516 100644 --- a/include/linux/clk/tegra.h +++ b/include/linux/clk/tegra.h @@ -17,7 +17,8 @@ #ifndef __LINUX_CLK_TEGRA_H_ #define __LINUX_CLK_TEGRA_H_ -#include <linux/clk.h> +#include <linux/types.h> +#include <linux/bug.h> /* * Tegra CPU clock and reset control ops diff --git a/include/linux/clk/ti.h b/include/linux/clk/ti.h index 79b76e13d904..9299222d680d 100644 --- a/include/linux/clk/ti.h +++ b/include/linux/clk/ti.h @@ -188,33 +188,6 @@ struct clk_hw_omap { /* DPLL Type and DCO Selection Flags */ #define DPLL_J_TYPE 0x1 -/* Composite clock component types */ -enum { - CLK_COMPONENT_TYPE_GATE = 0, - CLK_COMPONENT_TYPE_DIVIDER, - CLK_COMPONENT_TYPE_MUX, - CLK_COMPONENT_TYPE_MAX, -}; - -/** - * struct ti_dt_clk - OMAP DT clock alias declarations - * @lk: clock lookup definition - * @node_name: clock DT node to map to - */ -struct ti_dt_clk { - struct clk_lookup lk; - char *node_name; -}; - -#define DT_CLK(dev, con, name) \ - { \ - .lk = { \ - .dev_id = dev, \ - .con_id = con, \ - }, \ - .node_name = name, \ - } - /* Static memmap indices */ enum { TI_CLKM_CM = 0, @@ -225,8 +198,6 @@ enum { CLK_MAX_MEMMAPS }; -typedef void (*ti_of_clk_init_cb_t)(struct clk_hw *, struct device_node *); - /** * struct clk_omap_reg - OMAP register declaration * @offset: offset from the master IP module base address @@ -238,93 +209,56 @@ struct clk_omap_reg { }; /** - * struct ti_clk_ll_ops - low-level register access ops for a clock + * struct ti_clk_ll_ops - low-level ops for clocks * @clk_readl: pointer to register read function * @clk_writel: pointer to register write function + * @clkdm_clk_enable: pointer to clockdomain enable function + * @clkdm_clk_disable: pointer to clockdomain disable function + * @cm_wait_module_ready: pointer to CM module wait ready function + * @cm_split_idlest_reg: pointer to CM module function to split idlest reg * - * Low-level register access ops are generally used by the basic clock types - * (clk-gate, clk-mux, clk-divider etc.) to provide support for various - * low-level hardware interfaces (direct MMIO, regmap etc.), but can also be - * used by other hardware-specific clock drivers if needed. + * Low-level ops are generally used by the basic clock types (clk-gate, + * clk-mux, clk-divider etc.) to provide support for various low-level + * hadrware interfaces (direct MMIO, regmap etc.), and is initialized + * by board code. Low-level ops also contain some other platform specific + * operations not provided directly by clock drivers. */ struct ti_clk_ll_ops { u32 (*clk_readl)(void __iomem *reg); void (*clk_writel)(u32 val, void __iomem *reg); + int (*clkdm_clk_enable)(struct clockdomain *clkdm, struct clk *clk); + int (*clkdm_clk_disable)(struct clockdomain *clkdm, + struct clk *clk); + int (*cm_wait_module_ready)(u8 part, s16 prcm_mod, u16 idlest_reg, + u8 idlest_shift); + int (*cm_split_idlest_reg)(void __iomem *idlest_reg, s16 *prcm_inst, + u8 *idlest_reg_id); }; -extern struct ti_clk_ll_ops *ti_clk_ll_ops; - -extern const struct clk_ops ti_clk_divider_ops; -extern const struct clk_ops ti_clk_mux_ops; - #define to_clk_hw_omap(_hw) container_of(_hw, struct clk_hw_omap, hw) -void omap2_init_clk_hw_omap_clocks(struct clk *clk); -int omap3_noncore_dpll_enable(struct clk_hw *hw); -void omap3_noncore_dpll_disable(struct clk_hw *hw); -int omap3_noncore_dpll_set_parent(struct clk_hw *hw, u8 index); -int omap3_noncore_dpll_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate); -int omap3_noncore_dpll_set_rate_and_parent(struct clk_hw *hw, - unsigned long rate, - unsigned long parent_rate, - u8 index); -long omap3_noncore_dpll_determine_rate(struct clk_hw *hw, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk); -unsigned long omap4_dpll_regm4xen_recalc(struct clk_hw *hw, - unsigned long parent_rate); -long omap4_dpll_regm4xen_round_rate(struct clk_hw *hw, - unsigned long target_rate, - unsigned long *parent_rate); -long omap4_dpll_regm4xen_determine_rate(struct clk_hw *hw, - unsigned long rate, - unsigned long min_rate, - unsigned long max_rate, - unsigned long *best_parent_rate, - struct clk_hw **best_parent_clk); -u8 omap2_init_dpll_parent(struct clk_hw *hw); -unsigned long omap3_dpll_recalc(struct clk_hw *hw, unsigned long parent_rate); -long omap2_dpll_round_rate(struct clk_hw *hw, unsigned long target_rate, - unsigned long *parent_rate); void omap2_init_clk_clkdm(struct clk_hw *clk); -unsigned long omap3_clkoutx2_recalc(struct clk_hw *hw, - unsigned long parent_rate); -int omap3_clkoutx2_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate); -long omap3_clkoutx2_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate); -int omap2_clkops_enable_clkdm(struct clk_hw *hw); -void omap2_clkops_disable_clkdm(struct clk_hw *hw); int omap2_clk_disable_autoidle_all(void); -void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks); -int omap3_dpll4_set_rate(struct clk_hw *clk, unsigned long rate, - unsigned long parent_rate); -int omap3_dpll4_set_rate_and_parent(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate, u8 index); -int omap2_dflt_clk_enable(struct clk_hw *hw); -void omap2_dflt_clk_disable(struct clk_hw *hw); -int omap2_dflt_clk_is_enabled(struct clk_hw *hw); -void omap3_clk_lock_dpll5(void); +int omap2_clk_enable_autoidle_all(void); +int omap2_clk_allow_idle(struct clk *clk); +int omap2_clk_deny_idle(struct clk *clk); unsigned long omap2_dpllcore_recalc(struct clk_hw *hw, unsigned long parent_rate); int omap2_reprogram_dpllcore(struct clk_hw *clk, unsigned long rate, unsigned long parent_rate); void omap2xxx_clkt_dpllcore_init(struct clk_hw *hw); void omap2xxx_clkt_vps_init(void); +unsigned long omap2_get_dpll_rate(struct clk_hw_omap *clk); -void __iomem *ti_clk_get_reg_addr(struct device_node *node, int index); -void ti_dt_clocks_register(struct ti_dt_clk *oclks); -void ti_dt_clk_init_provider(struct device_node *np, int index); void ti_dt_clk_init_retry_clks(void); void ti_dt_clockdomains_setup(void); -int ti_clk_retry_init(struct device_node *node, struct clk_hw *hw, - ti_of_clk_init_cb_t func); -int of_ti_clk_autoidle_setup(struct device_node *node); -int ti_clk_add_component(struct device_node *node, struct clk_hw *hw, int type); +int ti_clk_setup_ll_ops(struct ti_clk_ll_ops *ops); + +struct regmap; + +int omap2_clk_provider_init(struct device_node *parent, int index, + struct regmap *syscon, void __iomem *mem); +void omap2_clk_legacy_provider_init(int index, void __iomem *mem); int omap3430_dt_clk_init(void); int omap3630_dt_clk_init(void); @@ -338,27 +272,24 @@ int am43xx_dt_clk_init(void); int omap2420_dt_clk_init(void); int omap2430_dt_clk_init(void); -#ifdef CONFIG_OF -void of_ti_clk_allow_autoidle_all(void); -void of_ti_clk_deny_autoidle_all(void); -#else -static inline void of_ti_clk_allow_autoidle_all(void) { } -static inline void of_ti_clk_deny_autoidle_all(void) { } -#endif +struct ti_clk_features { + u32 flags; + long fint_min; + long fint_max; + long fint_band1_max; + long fint_band2_min; + u8 dpll_bypass_vals; + u8 cm_idlest_val; +}; + +#define TI_CLK_DPLL_HAS_FREQSEL BIT(0) +#define TI_CLK_DPLL4_DENY_REPROGRAM BIT(1) +#define TI_CLK_DISABLE_CLKDM_CONTROL BIT(2) + +void ti_clk_setup_features(struct ti_clk_features *features); +const struct ti_clk_features *ti_clk_get_features(void); extern const struct clk_hw_omap_ops clkhwops_omap2xxx_dpll; -extern const struct clk_hw_omap_ops clkhwops_omap2430_i2chs_wait; -extern const struct clk_hw_omap_ops clkhwops_omap3_dpll; -extern const struct clk_hw_omap_ops clkhwops_omap4_dpllmx; -extern const struct clk_hw_omap_ops clkhwops_wait; -extern const struct clk_hw_omap_ops clkhwops_omap3430es2_dss_usbhost_wait; -extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_module_wait; -extern const struct clk_hw_omap_ops clkhwops_am35xx_ipss_wait; -extern const struct clk_hw_omap_ops clkhwops_iclk; -extern const struct clk_hw_omap_ops clkhwops_iclk_wait; -extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_ssi_wait; -extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_dss_usbhost_wait; -extern const struct clk_hw_omap_ops clkhwops_omap3430es2_iclk_hsotgusb_wait; #ifdef CONFIG_ATAGS int omap3430_clk_legacy_init(void); diff --git a/include/linux/platform_data/clk-ux500.h b/include/linux/platform_data/clk-ux500.h index 97baf831e071..3af0da1f3be5 100644 --- a/include/linux/platform_data/clk-ux500.h +++ b/include/linux/platform_data/clk-ux500.h @@ -10,14 +10,8 @@ #ifndef __CLK_UX500_H #define __CLK_UX500_H -void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, - u32 clkrst5_base, u32 clkrst6_base); - -void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, - u32 clkrst5_base, u32 clkrst6_base); -void u9540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, - u32 clkrst5_base, u32 clkrst6_base); -void u8540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base, - u32 clkrst5_base, u32 clkrst6_base); +void u8500_clk_init(void); +void u9540_clk_init(void); +void u8540_clk_init(void); #endif /* __CLK_UX500_H */ diff --git a/lib/vsprintf.c b/lib/vsprintf.c index da39c608a28c..95cd63b43b99 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -17,6 +17,7 @@ */ #include <stdarg.h> +#include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/module.h> /* for KSYM_SYMBOL_LEN */ #include <linux/types.h> |