1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/input/imx-keypad.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Freescale i.MX Keypad Port(KPP) device tree bindings
8
9maintainers:
10  - Liu Ying <gnuiyl@gmail.com>
11
12allOf:
13  - $ref: "/schemas/input/matrix-keymap.yaml#"
14
15description: |
16  The KPP is designed to interface with a keypad matrix with 2-point contact
17  or 3-point contact keys. The KPP is designed to simplify the software task
18  of scanning a keypad matrix. The KPP is capable of detecting, debouncing,
19  and decoding one or multiple keys pressed simultaneously on a keypad.
20
21properties:
22  compatible:
23    oneOf:
24      - const: fsl,imx21-kpp
25      - items:
26          - enum:
27              - fsl,imx25-kpp
28              - fsl,imx27-kpp
29              - fsl,imx31-kpp
30              - fsl,imx35-kpp
31              - fsl,imx51-kpp
32              - fsl,imx53-kpp
33              - fsl,imx50-kpp
34              - fsl,imx6q-kpp
35              - fsl,imx6sx-kpp
36              - fsl,imx6sl-kpp
37              - fsl,imx6sll-kpp
38              - fsl,imx6ul-kpp
39              - fsl,imx7d-kpp
40          - const: fsl,imx21-kpp
41
42  reg:
43    maxItems: 1
44
45  interrupts:
46    maxItems: 1
47
48  clocks:
49    maxItems: 1
50
51required:
52  - compatible
53  - reg
54  - interrupts
55  - clocks
56  - linux,keymap
57
58unevaluatedProperties: false
59
60examples:
61  - |
62    keypad@73f94000 {
63        compatible = "fsl,imx51-kpp", "fsl,imx21-kpp";
64        reg = <0x73f94000 0x4000>;
65        interrupts = <60>;
66        clocks = <&clks 0>;
67        pinctrl-names = "default";
68        pinctrl-0 = <&pinctrl_kpp_1>;
69        linux,keymap = <0x00000067	/* KEY_UP */
70                        0x0001006c	/* KEY_DOWN */
71                        0x00020072	/* KEY_VOLUMEDOWN */
72                        0x00030066	/* KEY_HOME */
73                        0x0100006a	/* KEY_RIGHT */
74                        0x01010069	/* KEY_LEFT */
75                        0x0102001c	/* KEY_ENTER */
76                        0x01030073	/* KEY_VOLUMEUP */
77                        0x02000040	/* KEY_F6 */
78                        0x02010042	/* KEY_F8 */
79                        0x02020043	/* KEY_F9 */
80                        0x02030044	/* KEY_F10 */
81                        0x0300003b	/* KEY_F1 */
82                        0x0301003c	/* KEY_F2 */
83                        0x0302003d	/* KEY_F3 */
84                        0x03030074>;	/* KEY_POWER */
85    };
86