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
7 title: Freescale i.MX Keypad Port(KPP)
8
9 maintainers:
10 - Liu Ying <gnuiyl@gmail.com>
11
12 allOf:
13 - $ref: /schemas/input/matrix-keymap.yaml#
14
15 description: |
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
21 properties:
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
51 required:
52 - compatible
53 - reg
54 - interrupts
55 - clocks
56 - linux,keymap
57
58 unevaluatedProperties: false
59
60 examples:
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 };
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