Files
linux/Documentation/devicetree/bindings/input/nxp,lpc3220-key.yaml
Frank Li fb43a9e696 dt-bindings: input: convert lpc32xx-key.txt to yaml format
Convert lpc32xx-key.txt to yaml format.

Additional changes:
- set maximum of key-row(column) to 4.
- add ref to matrix-keymap.yaml.

Reviewed-by: Vladimir Zapolskiy <vz@mleia.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250818183814.3603308-1-Frank.Li@nxp.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2025-08-21 19:44:12 -07:00

62 lines
1.2 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/nxp,lpc3220-key.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP LPC32xx Key Scan Interface
maintainers:
- Frank Li <Frank.Li@nxp.com>
properties:
compatible:
const: nxp,lpc3220-key
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 1
nxp,debounce-delay-ms:
description: Debounce delay in ms
nxp,scan-delay-ms:
description: Repeated scan period in ms
required:
- compatible
- reg
- interrupts
- clocks
- nxp,debounce-delay-ms
- nxp,scan-delay-ms
- linux,keymap
allOf:
- $ref: matrix-keymap.yaml#
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
#include <dt-bindings/clock/lpc32xx-clock.h>
key@40050000 {
compatible = "nxp,lpc3220-key";
reg = <0x40050000 0x1000>;
clocks = <&clk LPC32XX_CLK_KEY>;
interrupt-parent = <&sic1>;
interrupts = <22 IRQ_TYPE_LEVEL_HIGH>;
keypad,num-rows = <1>;
keypad,num-columns = <1>;
nxp,debounce-delay-ms = <3>;
nxp,scan-delay-ms = <34>;
linux,keymap = <0x00000002>;
};