diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/axp20x.txt | 31 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/hisilicon,hi655x.txt | 27 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/max77620.txt | 143 | ||||
| -rw-r--r-- | Documentation/driver-model/devres.txt | 3 |
4 files changed, 202 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/mfd/axp20x.txt b/Documentation/devicetree/bindings/mfd/axp20x.txt index fd39fa54571b..d20b1034e967 100644 --- a/Documentation/devicetree/bindings/mfd/axp20x.txt +++ b/Documentation/devicetree/bindings/mfd/axp20x.txt @@ -6,10 +6,11 @@ axp202 (X-Powers) axp209 (X-Powers) axp221 (X-Powers) axp223 (X-Powers) +axp809 (X-Powers) Required properties: - compatible: "x-powers,axp152", "x-powers,axp202", "x-powers,axp209", - "x-powers,axp221", "x-powers,axp223" + "x-powers,axp221", "x-powers,axp223", "x-powers,axp809" - reg: The I2C slave address or RSB hardware address for the AXP chip - interrupt-parent: The parent interrupt controller - interrupts: SoC NMI / GPIO interrupt connected to the PMIC's IRQ pin @@ -18,7 +19,9 @@ Required properties: Optional properties: - x-powers,dcdc-freq: defines the work frequency of DC-DC in KHz - (range: 750-1875). Default: 1.5MHz + AXP152/20X: range: 750-1875, Default: 1.5 MHz + AXP22X/80X: range: 1800-4050, Default: 3 MHz + - <input>-supply: a phandle to the regulator supply node. May be omitted if inputs are unregulated, such as using the IPSOUT output from the PMIC. @@ -77,6 +80,30 @@ LDO_IO0 : LDO : ips-supply : GPIO 0 LDO_IO1 : LDO : ips-supply : GPIO 1 RTC_LDO : LDO : ips-supply : always on +AXP809 regulators, type, and corresponding input supply names: + +Regulator Type Supply Name Notes +--------- ---- ----------- ----- +DCDC1 : DC-DC buck : vin1-supply +DCDC2 : DC-DC buck : vin2-supply +DCDC3 : DC-DC buck : vin3-supply +DCDC4 : DC-DC buck : vin4-supply +DCDC5 : DC-DC buck : vin5-supply +DC1SW : On/Off Switch : : DCDC1 secondary output +DC5LDO : LDO : : input from DCDC5 +ALDO1 : LDO : aldoin-supply : shared supply +ALDO2 : LDO : aldoin-supply : shared supply +ALDO3 : LDO : aldoin-supply : shared supply +DLDO1 : LDO : dldoin-supply : shared supply +DLDO2 : LDO : dldoin-supply : shared supply +ELDO1 : LDO : eldoin-supply : shared supply +ELDO2 : LDO : eldoin-supply : shared supply +ELDO3 : LDO : eldoin-supply : shared supply +LDO_IO0 : LDO : ips-supply : GPIO 0 +LDO_IO1 : LDO : ips-supply : GPIO 1 +RTC_LDO : LDO : ips-supply : always on +SW : On/Off Switch : swin-supply + Example: axp209: pmic@34 { diff --git a/Documentation/devicetree/bindings/mfd/hisilicon,hi655x.txt b/Documentation/devicetree/bindings/mfd/hisilicon,hi655x.txt new file mode 100644 index 000000000000..05485699d70e --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/hisilicon,hi655x.txt @@ -0,0 +1,27 @@ +Hisilicon Hi655x Power Management Integrated Circuit (PMIC) + +The hardware layout for access PMIC Hi655x from AP SoC Hi6220. +Between PMIC Hi655x and Hi6220, the physical signal channel is SSI. +We can use memory-mapped I/O to communicate. + ++----------------+ +-------------+ +| | | | +| Hi6220 | SSI bus | Hi655x | +| |-------------| | +| |(REGMAP_MMIO)| | ++----------------+ +-------------+ + +Required properties: +- compatible: Should be "hisilicon,hi655x-pmic". +- reg: Base address of PMIC on Hi6220 SoC. +- interrupt-controller: Hi655x has internal IRQs (has own IRQ domain). +- pmic-gpios: The GPIO used by PMIC IRQ. + +Example: + pmic: pmic@f8000000 { + compatible = "hisilicon,hi655x-pmic"; + reg = <0x0 0xf8000000 0x0 0x1000>; + interrupt-controller; + #interrupt-cells = <2>; + pmic-gpios = <&gpio1 2 GPIO_ACTIVE_HIGH>; + } diff --git a/Documentation/devicetree/bindings/mfd/max77620.txt b/Documentation/devicetree/bindings/mfd/max77620.txt new file mode 100644 index 000000000000..2ad44f7e4880 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/max77620.txt @@ -0,0 +1,143 @@ +MAX77620 Power management IC from Maxim Semiconductor. + +Required properties: +------------------- +- compatible: Must be one of + "maxim,max77620" + "maxim,max20024". +- reg: I2C device address. + +Optional properties: +------------------- +- interrupts: The interrupt on the parent the controller is + connected to. +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells: is <2> and their usage is compliant to the 2 cells + variant of <../interrupt-controller/interrupts.txt> + IRQ numbers for different interrupt source of MAX77620 + are defined at dt-bindings/mfd/max77620.h. + +Optional subnodes and their properties: +======================================= + +Flexible power sequence configurations: +-------------------------------------- +The Flexible Power Sequencer (FPS) allows each regulator to power up under +hardware or software control. Additionally, each regulator can power on +independently or among a group of other regulators with an adjustable power-up +and power-down delays (sequencing). GPIO1, GPIO2, and GPIO3 can be programmed +to be part of a sequence allowing external regulators to be sequenced along +with internal regulators. 32KHz clock can be programmed to be part of a +sequence. + +The flexible sequencing structure consists of two hardware enable inputs +(EN0, EN1), and 3 master sequencing timers called FPS0, FPS1 and FPS2. +Each master sequencing timer is programmable through its configuration +register to have a hardware enable source (EN1 or EN2) or a software enable +source (SW). When enabled/disabled, the master sequencing timer generates +eight sequencing events on different time periods called slots. The time +period between each event is programmable within the configuration register. +Each regulator, GPIO1, GPIO2, GPIO3, and 32KHz clock has a flexible power +sequence slave register which allows its enable source to be specified as +a flexible power sequencer timer or a software bit. When a FPS source of +regulators, GPIOs and clocks specifies the enable source to be a flexible +power sequencer, the power up and power down delays can be specified in +the regulators, GPIOs and clocks flexible power sequencer configuration +registers. + +When FPS event cleared (set to LOW), regulators, GPIOs and 32KHz +clock are set into following state at the sequencing event that +corresponds to its flexible sequencer configuration register. + Sleep state: In this state, regulators, GPIOs + and 32KHz clock get disabled at + the sequencing event. + Global Low Power Mode (GLPM): In this state, regulators are set in + low power mode at the sequencing event. + +The configuration parameters of FPS is provided through sub-node "fps" +and their child for FPS specific. The child node name for FPS are "fps0", +"fps1", and "fps2" for FPS0, FPS1 and FPS2 respectively. + +The FPS configurations like FPS source, power up and power down slots for +regulators, GPIOs and 32kHz clocks are provided in their respective +configuration nodes which is explained in respective sub-system DT +binding document. + +There is need for different FPS configuration parameters based on system +state like when system state changed from active to suspend or active to +power off (shutdown). + +Optional properties: +------------------- +-maxim,fps-event-source: u32, FPS event source like external + hardware input to PMIC i.e. EN0, EN1 or + software (SW). + The macros are defined on + dt-bindings/mfd/max77620.h + for different control source. + - MAX77620_FPS_EVENT_SRC_EN0 + for hardware input pin EN0. + - MAX77620_FPS_EVENT_SRC_EN1 + for hardware input pin EN1. + - MAX77620_FPS_EVENT_SRC_SW + for software control. + +-maxim,shutdown-fps-time-period-us: u32, FPS time period in microseconds + when system enters in to shutdown + state. + +-maxim,suspend-fps-time-period-us: u32, FPS time period in microseconds + when system enters in to suspend state. + +-maxim,device-state-on-disabled-event: u32, describe the PMIC state when FPS + event cleared (set to LOW) whether it + should go to sleep state or low-power + state. Following are valid values: + - MAX77620_FPS_INACTIVE_STATE_SLEEP + to set the PMIC state to sleep. + - MAX77620_FPS_INACTIVE_STATE_LOW_POWER + to set the PMIC state to low + power. + Absence of this property or other value + will not change device state when FPS + event get cleared. + +Here supported time periods by device in microseconds are as follows: +MAX77620 supports 40, 80, 160, 320, 640, 1280, 2560 and 5120 microseconds. +MAX20024 supports 20, 40, 80, 160, 320, 640, 1280 and 2540 microseconds. + +For DT binding details of different sub modules like GPIO, pincontrol, +regulator, power, please refer respective device-tree binding document +under their respective sub-system directories. + +Example: +-------- +#include <dt-bindings/mfd/max77620.h> + +max77620@3c { + compatible = "maxim,max77620"; + reg = <0x3c>; + + interrupt-parent = <&intc>; + interrupts = <0 86 IRQ_TYPE_NONE>; + + interrupt-controller; + #interrupt-cells = <2>; + + fps { + fps0 { + maxim,shutdown-fps-time-period-us = <1280>; + maxim,fps-event-source = <MAX77620_FPS_EVENT_SRC_EN1>; + }; + + fps1 { + maxim,shutdown-fps-time-period-us = <1280>; + maxim,fps-event-source = <MAX77620_FPS_EVENT_SRC_EN0>; + }; + + fps2 { + maxim,shutdown-fps-time-period-us = <1280>; + maxim,fps-event-source = <MAX77620_FPS_EVENT_SRC_SW>; + }; + }; +}; diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt index 7281fb4b4316..6c4478ce582d 100644 --- a/Documentation/driver-model/devres.txt +++ b/Documentation/driver-model/devres.txt @@ -320,6 +320,9 @@ MEM devm_kvasprintf() devm_kzalloc() +MFD + devm_mfd_add_devices() + PCI pcim_enable_device() : after success, all PCI ops become managed pcim_pin_device() : keep PCI device enabled after release |