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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/ti,twl4030-keypad.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments TWL4030-family Keypad Controller
maintainers:
- Peter Ujfalusi <peter.ujfalusi@gmail.com>
description:
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.
allOf:
- $ref: matrix-keymap.yaml#
properties:
compatible:
const: ti,twl4030-keypad
interrupts:
maxItems: 1
required:
- compatible
- interrupts
- keypad,num-rows
- keypad,num-columns
- linux,keymap
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/input/input.h>
keypad {
compatible = "ti,twl4030-keypad";
interrupts = <1>;
keypad,num-rows = <8>;
keypad,num-columns = <8>;
linux,keymap = <
/* row 0 */
MATRIX_KEY(0, 0, KEY_1)
MATRIX_KEY(0, 1, KEY_2)
MATRIX_KEY(0, 2, KEY_3)
/* ...and so on for a full 8x8 matrix... */
/* row 7 */
MATRIX_KEY(7, 6, KEY_Y)
MATRIX_KEY(7, 7, KEY_Z)
>;
};
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