From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- .../devicetree/bindings/input/twl4030-keypad.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/twl4030-keypad.txt (limited to 'Documentation/devicetree/bindings/input/twl4030-keypad.txt') diff --git a/Documentation/devicetree/bindings/input/twl4030-keypad.txt b/Documentation/devicetree/bindings/input/twl4030-keypad.txt new file mode 100644 index 000000000..e4be2f76a --- /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>; + }; -- cgit v1.2.3