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# 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>;
};
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