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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/input/imx-keypad.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Freescale i.MX Keypad Port(KPP) device tree bindings
maintainers:
- Liu Ying <gnuiyl@gmail.com>
allOf:
- $ref: "/schemas/input/matrix-keymap.yaml#"
description: |
The KPP is designed to interface with a keypad matrix with 2-point contact
or 3-point contact keys. The KPP is designed to simplify the software task
of scanning a keypad matrix. The KPP is capable of detecting, debouncing,
and decoding one or multiple keys pressed simultaneously on a keypad.
properties:
compatible:
oneOf:
- const: fsl,imx21-kpp
- items:
- enum:
- fsl,imx25-kpp
- fsl,imx27-kpp
- fsl,imx31-kpp
- fsl,imx35-kpp
- fsl,imx51-kpp
- fsl,imx53-kpp
- fsl,imx50-kpp
- fsl,imx6q-kpp
- fsl,imx6sx-kpp
- fsl,imx6sl-kpp
- fsl,imx6sll-kpp
- fsl,imx6ul-kpp
- fsl,imx7d-kpp
- const: fsl,imx21-kpp
reg:
maxItems: 1
interrupts:
maxItems: 1
clocks:
maxItems: 1
required:
- compatible
- reg
- interrupts
- clocks
- linux,keymap
unevaluatedProperties: false
examples:
- |
keypad@73f94000 {
compatible = "fsl,imx51-kpp", "fsl,imx21-kpp";
reg = <0x73f94000 0x4000>;
interrupts = <60>;
clocks = <&clks 0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_kpp_1>;
linux,keymap = <0x00000067 /* KEY_UP */
0x0001006c /* KEY_DOWN */
0x00020072 /* KEY_VOLUMEDOWN */
0x00030066 /* KEY_HOME */
0x0100006a /* KEY_RIGHT */
0x01010069 /* KEY_LEFT */
0x0102001c /* KEY_ENTER */
0x01030073 /* KEY_VOLUMEUP */
0x02000040 /* KEY_F6 */
0x02010042 /* KEY_F8 */
0x02020043 /* KEY_F9 */
0x02030044 /* KEY_F10 */
0x0300003b /* KEY_F1 */
0x0301003c /* KEY_F2 */
0x0302003d /* KEY_F3 */
0x03030074>; /* KEY_POWER */
};
|
