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dt-bindings: input: convert tca8418_keypad.txt to yaml format

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Convert tca8418_keypad.txt to yaml format.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250916171327.3773620-1-Frank.Li@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Frank Li 2025-09-16 13:13:26 -04:00 • committed by Dmitry Torokhov
parent 11fafeb265
commit 1b7d2e1742
2 changed files with 61 additions and 10 deletions
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10
Documentation/devicetree/bindings/input/tca8418_keypad.txt
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This binding is based on the matrix-keymap binding with the following
changes:
keypad,num-rows and keypad,num-columns are required.
Required properties:
- compatible: "ti,tca8418"
- reg: the I2C address
- interrupts: IRQ line number, should trigger on falling edge
- linux,keymap: Keys definitions, see keypad-matrix.

61
Documentation/devicetree/bindings/input/ti,tca8418.yaml Normal file
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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,tca8418.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: TI TCA8418 I2C/SMBus keypad scanner
maintainers:
- Frank Li <Frank.Li@nxp.com>
properties:
compatible:
enum:
- ti,tca8418
reg:
maxItems: 1
interrupts:
maxItems: 1
required:
- compatible
- reg
- interrupts
allOf:
- $ref: matrix-keymap.yaml#
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/input/input.h>
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
keypad@34 {
compatible = "ti,tca8418";
reg = <0x34>;
interrupt-parent = <&gpio5>;
interrupts = <11 IRQ_TYPE_EDGE_FALLING>;
keypad,num-rows = <4>;
keypad,num-columns = <4>;
linux,keymap = < MATRIX_KEY(0x00, 0x01, BTN_0)
MATRIX_KEY(0x00, 0x00, BTN_1)
MATRIX_KEY(0x01, 0x01, BTN_2)
MATRIX_KEY(0x01, 0x00, BTN_3)
MATRIX_KEY(0x02, 0x00, BTN_4)
MATRIX_KEY(0x00, 0x03, BTN_5)
MATRIX_KEY(0x00, 0x02, BTN_6)
MATRIX_KEY(0x01, 0x03, BTN_7)
MATRIX_KEY(0x01, 0x02, BTN_8)
MATRIX_KEY(0x02, 0x02, BTN_9)
>;
};
};