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path: root/drivers/gpio/gpio-pxa.c
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2014-01-15gpio: pxa: clamp gpio get value to [0,1]Neil Zhang1-1/+2
It would be convenient to normalize the return value for gpio_get. I have checked mach-mmp / mach-pxa / plat-pxa / plat-orion / mach-orion5x. It's OK for all of them to change this function to return 0 and 1. Signed-off-by: Neil Zhang <zhangwm@marvell.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-07-21gpio: pxa: remove dead codeDaniel Mack1-10/+3
Commit f87311743 ("ARM: mmp: add more compatible names in gpio driver") changed the driver logic to determine the number of available GPIOs from the compatible string, and hence obsoleted the (undocumented) child nodes that were previously necessary. However, it left some remainder which can be safely removed now. Also, this patch makes pxa_gpio_probe_dt() return the correct value in case irq_alloc_descs() fails. Signed-off-by: Daniel Mack <zonque@gmail.com> Cc: Haojian Zhuang <haojian.zhuang@linaro.org> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-05-06Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds1-2/+2
Pull GPIO changes from Grant Likely: "The usual selection of bug fixes and driver updates for GPIO. Nothing really stands out except the addition of the GRGPIO driver and some enhacements to ACPI support" I'm pulling this despite the earlier mess. Let's hope it compiles these days. * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: (46 commits) gpio: grgpio: Add irq support gpio: grgpio: Add device driver for GRGPIO cores gpiolib-acpi: introduce acpi_get_gpio_by_index() helper GPIO: gpio-generic: remove kfree() from bgpio_remove call gpio / ACPI: Handle ACPI events in accordance with the spec gpio: lpc32xx: Fix off-by-one valid range checking for bank gpio: mcp23s08: convert driver to DT gpio/omap: force restore if context loss is not detectable gpio/omap: optimise interrupt service routine gpio/omap: remove extra context restores in *_runtime_resume() gpio/omap: free irq domain in probe() failure paths gpio: gpio-generic: Add 16 and 32 bit big endian byte order support gpio: samsung: Add terminating entry for exynos_pinctrl_ids gpio: mvebu: add dbg_show function MAX7301 GPIO: Do not force SPI speed when using OF Platform gpio: gpio-tps65910.c: fix checkpatch error gpio: gpio-timberdale.c: fix checkpatch error gpio: gpio-tc3589x.c: fix checkpatch errors gpio: gpio-stp-xway.c: fix checkpatch error gpio: gpio-sch.c: fix checkpatch error ...
2013-05-04Merge tag 'boards-for-linus' of ↵Linus Torvalds1-56/+95
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC board specific changes (part 1) from Olof Johansson: "These changes are all for board specific files. These used to make up a large portion of the ARM changes in the past, but as we are generalizing the support and moving to device tree probing, this has gotten significantly smaller. The only platform actually adding new code here at the moment is Renesas shmobile, as they are still busy converting their code to device tree and have not come far enough to not need it." * tag 'boards-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (43 commits) ARM: msm: USB_MSM_OTG needs USB_PHY ARM: davinci: da850 evm: fix const qualifier placement ARM: davinci: da850 board: add remoteproc support ARM: pxa: move debug uart code ARM: pxa: select PXA935 on saar & tavorevb ARM: mmp: add more compatible names in gpio driver ARM: pxa: move PXA_GPIO_TO_IRQ macro ARM: pxa: remove cpu_is_xxx in gpio driver ARM: Kirkwood: update Network Space Mini v2 description ARM: Kirkwood: DT board setup for CloudBox ARM: Kirkwood: sort board entries by ASCII-code order ARM: OMAP: board-4430sdp: Provide regulator to pwm-backlight ARM: OMAP: zoom: Use pwm stack for lcd and keyboard backlight ARM: OMAP2+: omap2plus_defconfig: Add support for BMP085 pressure sensor omap2+: Remove useless Makefile line omap2+: Remove useless Makefile line ARM: OMAP: RX-51: add missing regulator supply definitions for lis3lv02d ARM: OMAP1: fix omap_udc registration ARM: davinci: use is IS_ENABLED macro ARM: kirkwood: add MACH_GURUPLUG_DT to defconfig ...
2013-05-02Merge tag 'cleanup-for-linus' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC cleanup from Olof Johansson: "Here is a collection of cleanup patches. Among the pieces that stand out are: - The deletion of h720x platforms - Split of at91 non-dt platforms to their own Kconfig file to keep them separate - General cleanups and refactoring of i.MX and MXS platforms - Some restructuring of clock tables for OMAP - Convertion of PMC driver for Tegra to dt-only - Some renames of sunxi -> sun4i (Allwinner A10) - ... plus a bunch of other stuff that I haven't mentioned" * tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (119 commits) ARM: i.MX: remove unused ARCH_* configs ARM i.MX53: remove platform ahci support ARM: sunxi: Rework the restart code irqchip: sunxi: Rename sunxi to sun4i irqchip: sunxi: Make use of the IRQCHIP_DECLARE macro clocksource: sunxi: Rename sunxi to sun4i clocksource: sunxi: make use of CLKSRC_OF clocksource: sunxi: Cleanup the timer code ARM: at91: remove trailing semicolon from macros ARM: at91/setup: fix trivial typos ARM: EXYNOS: remove "config EXYNOS_DEV_DRM" ARM: EXYNOS: change the name of USB ohci header ARM: SAMSUNG: Remove unnecessary code for dma ARM: S3C24XX: Remove unused GPIO drive strength register definitions ARM: OMAP4+: PM: Restore CPU power state to ON with clockdomain force wakeup method ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2412 ARM: S3C24XX: Removed unneeded dependency on CPU_S3C2410 ARM: S3C24XX: Removed unneeded dependency on ARCH_S3C24XX for boards ARM: SAMSUNG: Fix typo "CONFIG_SAMSUNG_DEV_RTC" ARM: S5P64X0: Fix typo "CONFIG_S5P64X0_SETUP_SDHCI" ...
2013-04-24Revert "gpio: pxa: set initcall level to module init"Linus Walleij1-1/+6
This reverts commit 6c7e660a27da7494c670bfba21cfeba30457656c. The commit causes breakage on several older PXA machines. Reported-by: Mike Dunn <mikedunn@newsguy.com> Acked-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-11ARM: mmp: add more compatible names in gpio driverHaojian Zhuang1-12/+13
Since more driver names are added into platform id, do the same thing on compatible names for DT mode. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-11ARM: pxa: move PXA_GPIO_TO_IRQ macroHaojian Zhuang1-11/+9
Since PXA_GPIO_TO_IRQ() & MMP_GPIO_TO_IRQ() macro are depended on arch code, move them from gpio driver to platform driver instead. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-04-11ARM: pxa: remove cpu_is_xxx in gpio driverHaojian Zhuang1-33/+73
Avoid to use cpu_is_xxx() in pxa gpio driver. Use platform_device_id to identify the difference. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Acked-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-27gpio: gpio-pxa.c: fix checkpatch errorsLaurent Navet1-2/+2
Fix : gpio/gpio-pxa.c:605: ERROR: space required after that ',' (ctx:VxV) gpio/gpio-pxa.c:672: ERROR: space prohibited after that open parenthesis '(' Signed-off-by: Laurent Navet <laurent.navet@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2013-03-26arm: Move chained_irq_(enter|exit) to a generic fileCatalin Marinas1-2/+1
These functions have been introduced by commit 10a8c383 (irq: introduce entry and exit functions for chained handlers) in asm/mach/irq.h. This patch moves them to linux/irqchip/chained_irq.h so that generic irqchip drivers do not rely on architecture specific header files. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@arm.linux.org.uk> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Rob Herring <rob.herring@calxeda.com>
2013-01-25gpio: pxa: set initcall level to module initHaojian Zhuang1-6/+1
gpio & pinctrl driver are used together. The pinctrl driver is already launched before gpio driver in Makefile. So set gpio driver to module init level. Otherwise, the sequence will be inverted. Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-12-12Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-1/+1
Pull ARM SoC cleanups on various subarchitectures from Olof Johansson: "Cleanup patches for various ARM platforms and some of their associated drivers. There's also a branch in here that enables Freescale i.MX to be part of the multiplatform support -- the first "big" SoC that is moved over (more multiplatform work comes in a separate branch later during the merge window)." Conflicts fixed as per Olof, including a silent semantic one in arch/arm/mach-omap2/board-generic.c (omap_prcm_restart() was renamed to omap3xxx_restart(), and a new user of the old name was added). * tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (189 commits) ARM: omap: fix typo on timer cleanup ARM: EXYNOS: Remove unused regs-mem.h file ARM: EXYNOS: Remove unused non-dt support for dwmci controller ARM: Kirkwood: Use hw_pci.ops instead of hw_pci.scan ARM: OMAP3: cm-t3517: use GPTIMER for system clock ARM: OMAP2+: timer: remove CONFIG_OMAP_32K_TIMER ARM: SAMSUNG: use devm_ functions for ADC driver ARM: EXYNOS: no duplicate mask/unmask in eint0_15 ARM: S3C24XX: SPI clock channel setup is fixed for S3C2443 ARM: EXYNOS: Remove i2c0 resource information and setting of device names ARM: Kirkwood: checkpatch cleanups ARM: Kirkwood: Fix sparse warnings. ARM: Kirkwood: Remove unused includes ARM: kirkwood: cleanup lsxl board includes ARM: integrator: use BUG_ON where possible ARM: integrator: push down SC dependencies ARM: integrator: delete static UART1 mapping ARM: integrator: delete SC mapping on the CP ARM: integrator: remove static CP syscon mapping ARM: integrator: remove static AP syscon mapping ...
2012-11-28gpio: remove use of __devinitBill Pemberton1-3/+3
CONFIG_HOTPLUG is going away as an option so __devinit is no longer needed. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Kevin Hilman <khilman@ti.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-11-15ARM: pxa: remove pxa95x supportHaojian Zhuang1-1/+1
PXA95x isn't widely used. And it adds the effort on supporting multiple platform. So remove it. The assumption is that nobody will miss this support. If you are reading this text because you actually require pxa95x support on a new kernel, we can work out a way to revert this patch or add support to the mmp platform. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-10-02Merge tag 'gpio-for-v3.7' of ↵Linus Torvalds1-11/+2
git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio Pull GPIO changes from Linus Walleij: "So this is the LW GPIO patch stack for v3.7: - refactoring from Thierry Redding at Arnd Bergmann's request to use the seq_file iterator interface in gpiolib. - A new driver for Avionic Design's N-bit GPIO expander. - Two instances of mutexes replaced by spinlocks from Axel Lin to code that is supposed to be fastpath compliant. - IRQ demuxer and gpio_to_irq() support for pcf857x by Kuninori Morimoto. - Dynamic GPIO numbers, device tree support, daisy chaining and some other fixes for the 74x164 driver by Maxime Ripard. - IRQ domain and device tree support for the tc3589x driver by Lee Jones. - Some conversion to use managed resources devm_* code. - Some instances of clk_prepare() or clk_prepare_enable() added to support the new, stricter common clock framework. - Some for_each_set_bit() simplifications. - Then a lot of fixes as we fixed up all of the above tripping over our own shoelaces and that kind of thing." * tag 'gpio-for-v3.7' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (34 commits) gpio: pcf857x: select IRQ_DOMAIN gpio: Document device_node's det_debounce gpio-lpc32xx: Add GPI_28 gpio: adnp: dt: Reference generic interrupt binding gpio: Add Avionic Design N-bit GPIO expander support gpio: pxa: using for_each_set_bit to simplify the code gpio_msm: using for_each_set_bit to simplify the code gpio: Enable the tc3298x GPIO expander driver for Device Tree gpio: Provide the tc3589x GPIO expander driver with an IRQ domain ARM: shmobile: kzm9g: use gpio-keys instead of gpio-keys-polled gpio: pcf857x: fixup smatch WARNING gpio: 74x164: Add support for the daisy-chaining gpio: 74x164: dts: Add documentation for the dt binding dt: Fix incorrect reference in gpio-led documentation gpio: 74x164: Add device tree support gpio: 74x164: Use dynamic gpio number assignment if no pdata is present gpio: 74x164: Use devm_kzalloc gpio: 74x164: Use module_spi_driver boiler plate function gpio: sx150x: Use irq_data_get_irq_chip_data() at appropriate places gpio: em: Use irq_data_get_irq_chip_data() at appropriate places ...
2012-09-18gpio: pxa: using for_each_set_bit to simplify the codeWei Yongjun1-3/+1
Using for_each_set_bit() to simplify the code. spatch with a semantic match is used to found this. (http://coccinelle.lip6.fr/) Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-09-05Merge branch 'soc-core' of ↵Olof Johansson1-2/+28
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/dt * 'soc-core' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: mach-shmobile: Add compilation support for dtbs using 'make dtbs' + sync to 3.6-rc3
2012-09-01drivers/gpio/gpio-pxa.c: use clk_prepare_enable and clk_disable_unprepareJulia Lawall1-8/+1
Clk_prepare_enable and clk_disable_unprepare combine clk_prepare and clk_enable, and clk_disable and clk_unprepare. They make the code more concise, and ensure that clk_unprepare is called when clk_enable fails. A simplified version of the semantic patch that introduces calls to these functions is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression e; @@ - clk_prepare(e); - clk_enable(e); + clk_prepare_enable(e); @@ expression e; @@ - clk_disable(e); - clk_unprepare(e); + clk_disable_unprepare(e); // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-08-16gpio: pxa: add chain_eneter and chain_exit for irq handlerChao Xie1-0/+7
Signed-off-by: Chao Xie <xiechao.mail@gmail.com> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-08-16GPIO: gpio-pxa: simplify pxa_gpio_to_irq() and pxa_irq_to_chip()Daniel Mack1-54/+16
Simplify the code in gpio-pxa.c and make them based on irq_base. When not probed from devicetree, initialize irq_base from PXA_GPIO_TO_IRQ() or MMP_GPIO_TO_IRQ(), respectively, so the non-DT case still works. Only tested on PXA3xx. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-08-14GPIO: gpio-pxa: fix building without CONFIG_OFArnd Bergmann1-2/+2
Commit 7212157267 ("GPIO: gpio-pxa: fix devicetree functions") added an "xlate" function pointer to the irq_domain_ops, but this function is nor declared or defined anywhere when CONFIG_OF is disabled, causing the build error: drivers/gpio/gpio-pxa.c:532:11: error: 'irq_domain_xlate_twocell' undeclared here (not in a function) Extending the DT-only code section to cover the irq_domain_ops and the pxa_gpio_dt_ids solves this problem and makes it clearer which code is actually used without DT. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-08-05GPIO: gpio-pxa: fix devicetree functionsDaniel Mack1-0/+26
Provide an of_xlate function for the PXA GPIO chips and make it work for devicetree environments. Successfully tested on a PXA3xx board. Signed-off-by: Daniel Mack <zonque@gmail.com> Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2012-05-05gpio: pxa: parse gpio from DTS fileHaojian Zhuang1-18/+98
Parse GPIO numbers from DTS file. Allocate interrupt according to GPIO numbers. Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-04-27ARM: pxa: fix gpio wakeup settingRobert Jarzmik1-2/+19
In 3.3, gpio wakeup setting was broken. The call enable_irq_wake() didn't set up the PXA gpio registers (PWER, ...) anymore. Fix it at least for pxa27x. The driver doesn't seem to be used in pxa25x (weird ...), and the fix doesn't extend to pxa3xx and pxa95x (which don't have a gpio_set_wake() available). Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
2012-01-25gpio: pxa: explicitly include mach/irqs.hRob Herring1-0/+2
In preparation to make mach/irqs.h optional and remove from asm/irq.h, directly include mach/irq.h to get MMP_GPIO_TO_IRQ and PXA_GPIO_TO_IRQ. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
2011-11-15ARM: pxa: add clk support in gpio driverHaojian Zhuang1-1/+25
Support clk in gpio driver. There's no gpio clock in PXA25x and PXA27x. So use dummy clk instead. And move the gpio edge initialization into gpio driver for arch-mmp. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
2011-11-15ARM: mmp: clear gpio edge detectHaojian Zhuang1-0/+4
Append code to clear gpio edge detect in gpio-pxa driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
2011-11-15ARM: pxa: change gpio to platform deviceHaojian Zhuang1-10/+125
Remove most gpio macros and change gpio driver to platform driver. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
2011-11-14ARM: pxa: use little endian read write in gpio driverHaojian Zhuang1-34/+34
Remove __raw_readl()/__raw_writel(). Use readl_relaxed()/writel_relaxed() instead. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
2011-11-14ARM: pxa: recognize gpio number and typeHaojian Zhuang1-1/+40
Use cpuid to recognize the gpio number and type. CPU_PXA26x is the special case since we can't identify it by cpuid. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
2011-11-14ARM: pxa: rename gpio_to_irq and irq_to_gpioHaojian Zhuang1-4/+85
Avoid to define gpio_to_irq() and irq_to_gpio() for potential name confliction since multiple architecture will be built together. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
2011-11-14ARM: pxa: use chained interrupt for GPIO0 and GPIO1Haojian Zhuang1-0/+14
GPIO0 and GPIO1 are linked to unique interrupt line in PXA series, others are linked to another interrupt line. All GPIO are linked to one interrupt line in MMP series. Since gpio driver is shared between PXA series and MMP series, define GPIO0 and GPIO1 as chained interrupt chip. So we can move out gpio code from irq.c to gpio-pxa.c. Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com> Acked-by: Grant Likely <grant.likely@secretlab.ca>
2011-10-31Merge branch 'depends/rmk/gpio' into next/fixesArnd Bergmann1-0/+338
This sorts out merge conflicts with the arm/gpio branch that already got merged into mainline Linux. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2011-10-01ARM: 7104/1: plat-pxa: break out GPIO driver specificsLinus Walleij1-0/+2
The <mach/gpio.h> file is included from upper directories and deal with generic GPIO and gpiolib stuff. Break out the platform and driver specific defines and functions into its own header file. Cc: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2011-10-01ARM: 7103/1: plat-pxa: move PXA GPIO driver to GPIO subsystemLinus Walleij1-0/+336
As per example from the other ARM boards, push the PXA GPIO driver down to the GPIO subsystem so it can be consolidated. Acked-by: Eric Miao <eric.y.miao@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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