diff options
Diffstat (limited to 'Documentation/devicetree/bindings/mfd')
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/st,stpmic1.txt | 61 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/mfd/stmpe.txt | 28 |
2 files changed, 82 insertions, 7 deletions
diff --git a/Documentation/devicetree/bindings/mfd/st,stpmic1.txt b/Documentation/devicetree/bindings/mfd/st,stpmic1.txt new file mode 100644 index 000000000000..afd45c089585 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/st,stpmic1.txt @@ -0,0 +1,61 @@ +* STMicroelectronics STPMIC1 Power Management IC + +Required properties: +- compatible: : "st,stpmic1" +- reg: : The I2C slave address for the STPMIC1 chip. +- interrupts: : The interrupt line the device is connected to. +- #interrupt-cells: : Should be 1. +- interrupt-controller: : Marks the device node as an interrupt controller. + Interrupt numbers are defined at + dt-bindings/mfd/st,stpmic1.h. + +STPMIC1 consists in a varied group of sub-devices. +Each sub-device binding is be described in own documentation file. + +Device Description +------ ------------ +st,stpmic1-onkey : Power on key, see ../input/st,stpmic1-onkey.txt +st,stpmic1-regulators : Regulators, see ../regulator/st,stpmic1-regulator.txt +st,stpmic1-wdt : Watchdog, see ../watchdog/st,stpmic1-wdt.txt + +Example: + +#include <dt-bindings/mfd/st,stpmic1.h> + +pmic: pmic@33 { + compatible = "st,stpmic1"; + reg = <0x33>; + interrupt-parent = <&gpioa>; + interrupts = <0 2>; + + interrupt-controller; + #interrupt-cells = <2>; + + onkey { + compatible = "st,stpmic1-onkey"; + interrupts = <IT_PONKEY_F 0>,<IT_PONKEY_R 1>; + interrupt-names = "onkey-falling", "onkey-rising"; + power-off-time-sec = <10>; + }; + + watchdog { + compatible = "st,stpmic1-wdt"; + }; + + regulators { + compatible = "st,stpmic1-regulators"; + + vdd_core: buck1 { + regulator-name = "vdd_core"; + regulator-boot-on; + regulator-min-microvolt = <700000>; + regulator-max-microvolt = <1200000>; + }; + vdd: buck3 { + regulator-name = "vdd"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + regulator-pull-down; + }; + }; diff --git a/Documentation/devicetree/bindings/mfd/stmpe.txt b/Documentation/devicetree/bindings/mfd/stmpe.txt index c797c05cd3c2..d4408a417193 100644 --- a/Documentation/devicetree/bindings/mfd/stmpe.txt +++ b/Documentation/devicetree/bindings/mfd/stmpe.txt @@ -4,15 +4,29 @@ STMPE is an MFD device which may expose the following inbuilt devices: gpio, keypad, touchscreen, adc, pwm, rotator. Required properties: - - compatible : "st,stmpe[610|801|811|1600|1601|2401|2403]" - - reg : I2C/SPI address of the device + - compatible : "st,stmpe[610|801|811|1600|1601|2401|2403]" + - reg : I2C/SPI address of the device Optional properties: - - interrupts : The interrupt outputs from the controller - - interrupt-controller : Marks the device node as an interrupt controller - - wakeup-source : Marks the input device as wakable - - st,autosleep-timeout : Valid entries (ms); 4, 16, 32, 64, 128, 256, 512 and 1024 - - irq-gpio : If present, which GPIO to use for event IRQ + - interrupts : The interrupt outputs from the controller + - interrupt-controller : Marks the device node as an interrupt controller + - wakeup-source : Marks the input device as wakable + - st,autosleep-timeout : Valid entries (ms); 4, 16, 32, 64, 128, 256, 512 and 1024 + - irq-gpio : If present, which GPIO to use for event IRQ + +Optional properties for devices with touch and ADC (STMPE811|STMPE610): + - st,sample-time : ADC conversion time in number of clock. + 0 -> 36 clocks 4 -> 80 clocks (recommended) + 1 -> 44 clocks 5 -> 96 clocks + 2 -> 56 clocks 6 -> 124 clocks + 3 -> 64 clocks + - st,mod-12b : ADC Bit mode + 0 -> 10bit ADC 1 -> 12bit ADC + - st,ref-sel : ADC reference source + 0 -> internal 1 -> external + - st,adc-freq : ADC Clock speed + 0 -> 1.625 MHz 2 || 3 -> 6.5 MHz + 1 -> 3.25 MHz Example: |