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Diffstat (limited to 'Documentation/devicetree')
4 files changed, 102 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/gpio-beeper.txt b/Documentation/devicetree/bindings/input/gpio-beeper.txt new file mode 100644 index 00000000000..a5086e37fce --- /dev/null +++ b/Documentation/devicetree/bindings/input/gpio-beeper.txt @@ -0,0 +1,13 @@ +* GPIO beeper device tree bindings + +Register a beeper connected to GPIO pin. + +Required properties: +- compatible: Should be "gpio-beeper". +- gpios: From common gpio binding; gpio connection to beeper enable pin. + +Example: + beeper: beeper { + compatible = "gpio-beeper"; + gpios = <&gpio3 23 GPIO_ACTIVE_HIGH>; + }; diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt new file mode 100644 index 00000000000..ec365e17223 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2007.txt @@ -0,0 +1,41 @@ +* Texas Instruments tsc2007 touchscreen controller + +Required properties: +- compatible: must be "ti,tsc2007". +- reg: I2C address of the chip. +- ti,x-plate-ohms: X-plate resistance in ohms. + +Optional properties: +- gpios: the interrupt gpio the chip is connected to (trough the penirq pin). + The penirq pin goes to low when the panel is touched. + (see GPIO binding[1] for more details). +- interrupt-parent: the phandle for the gpio controller + (see interrupt binding[0]). +- interrupts: (gpio) interrupt to which the chip is connected + (see interrupt binding[0]). +- ti,max-rt: maximum pressure. +- ti,fuzzx: specifies the absolute input fuzz x value. + If set, it will permit noise in the data up to +- the value given to the fuzz + parameter, that is used to filter noise from the event stream. +- ti,fuzzy: specifies the absolute input fuzz y value. +- ti,fuzzz: specifies the absolute input fuzz z value. +- ti,poll-period: how much time to wait (in milliseconds) before reading again the + values from the tsc2007. + +[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt +[1]: Documentation/devicetree/bindings/gpio/gpio.txt + +Example: + &i2c1 { + /* ... */ + tsc2007@49 { + compatible = "ti,tsc2007"; + reg = <0x49>; + interrupt-parent = <&gpio4>; + interrupts = <0x0 0x8>; + gpios = <&gpio4 0 0>; + ti,x-plate-ohms = <180>; + }; + + /* ... */ + }; diff --git a/Documentation/devicetree/bindings/input/twl4030-keypad.txt b/Documentation/devicetree/bindings/input/twl4030-keypad.txt new file mode 100644 index 00000000000..e4be2f76a71 --- /dev/null +++ b/Documentation/devicetree/bindings/input/twl4030-keypad.txt @@ -0,0 +1,27 @@ +* TWL4030's Keypad Controller device tree bindings + +TWL4030's Keypad controller is used to interface a SoC with a matrix-type +keypad device. The keypad controller supports multiple row and column lines. +A key can be placed at each intersection of a unique row and a unique column. +The keypad controller can sense a key-press and key-release and report the +event using a interrupt to the cpu. + +This binding is based on the matrix-keymap binding with the following +changes: + + * keypad,num-rows and keypad,num-columns are required. + +Required SoC Specific Properties: +- compatible: should be one of the following + - "ti,twl4030-keypad": For controllers compatible with twl4030 keypad + controller. +- interrupt: should be one of the following + - <1>: For controllers compatible with twl4030 keypad controller. + +Example: + twl_keypad: keypad { + compatible = "ti,twl4030-keypad"; + interrupts = <1>; + keypad,num-rows = <8>; + keypad,num-columns = <8>; + }; diff --git a/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt b/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt new file mode 100644 index 00000000000..c864a46cddc --- /dev/null +++ b/Documentation/devicetree/bindings/input/twl4030-pwrbutton.txt @@ -0,0 +1,21 @@ +Texas Instruments TWL family (twl4030) pwrbutton module + +This module is part of the TWL4030. For more details about the whole +chip see Documentation/devicetree/bindings/mfd/twl-familly.txt. + +This module provides a simple power button event via an Interrupt. + +Required properties: +- compatible: should be one of the following + - "ti,twl4030-pwrbutton": For controllers compatible with twl4030 +- interrupts: should be one of the following + - <8>: For controllers compatible with twl4030 + +Example: + +&twl { + twl_pwrbutton: pwrbutton { + compatible = "ti,twl4030-pwrbutton"; + interrupts = <8>; + }; +}; |