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e8ec34ed46
Convert the legacy TXT binding for the TWL4030 keypad module to the modern YAML DT schema format. This adds formal validation and improves documentation by inheriting from the matrix-keymap schema. Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com> Reviewed-by: Rob Herring (Arm) <robh@kernel.org> Link: https://patch.msgid.link/20250819222823.157943-1-jihed.chaibi.dev@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
60 lines
1.4 KiB
YAML
60 lines
1.4 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/ti,twl4030-keypad.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Texas Instruments TWL4030-family Keypad Controller
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maintainers:
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- Peter Ujfalusi <peter.ujfalusi@gmail.com>
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description:
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TWL4030's Keypad controller is used to interface a SoC with a matrix-type
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keypad device. The keypad controller supports multiple row and column lines.
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A key can be placed at each intersection of a unique row and a unique column.
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The keypad controller can sense a key-press and key-release and report the
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event using a interrupt to the cpu.
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allOf:
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- $ref: matrix-keymap.yaml#
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properties:
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compatible:
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const: ti,twl4030-keypad
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interrupts:
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maxItems: 1
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required:
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- compatible
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- interrupts
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- keypad,num-rows
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- keypad,num-columns
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- linux,keymap
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/input/input.h>
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keypad {
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compatible = "ti,twl4030-keypad";
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interrupts = <1>;
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keypad,num-rows = <8>;
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keypad,num-columns = <8>;
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linux,keymap = <
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/* row 0 */
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MATRIX_KEY(0, 0, KEY_1)
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MATRIX_KEY(0, 1, KEY_2)
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MATRIX_KEY(0, 2, KEY_3)
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/* ...and so on for a full 8x8 matrix... */
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/* row 7 */
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MATRIX_KEY(7, 6, KEY_Y)
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MATRIX_KEY(7, 7, KEY_Z)
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>;
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};
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