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Diffstat (limited to 'Documentation/devicetree/bindings/input/twl4030-keypad.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/input/twl4030-keypad.txt | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/twl4030-keypad.txt b/Documentation/devicetree/bindings/input/twl4030-keypad.txt new file mode 100644 index 000000000000..e4be2f76a717 --- /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>; + }; |