tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/input/allwinner,sun4i-a10-lradc-keys.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Allwinner A10 LRADC Device Tree Bindings
8
9maintainers:
10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org>
12
13properties:
14 compatible:
15 oneOf:
16 - const: allwinner,sun4i-a10-lradc-keys
17 - const: allwinner,sun8i-a83t-r-lradc
18 - items:
19 - const: allwinner,sun50i-a64-lradc
20 - const: allwinner,sun8i-a83t-r-lradc
21
22 reg:
23 maxItems: 1
24
25 interrupts:
26 maxItems: 1
27
28 vref-supply:
29 description:
30 Regulator for the LRADC reference voltage
31
32patternProperties:
33 "^button-[0-9]+$":
34 type: object
35 properties:
36 label:
37 $ref: /schemas/types.yaml#/definitions/string
38 description: Descriptive name of the key
39
40 linux,code:
41 $ref: /schemas/types.yaml#/definitions/uint32
42 description: Keycode to emit
43
44 channel:
45 $ref: /schemas/types.yaml#/definitions/uint32
46 enum: [0, 1]
47 description: ADC Channel this key is attached to
48
49 voltage:
50 $ref: /schemas/types.yaml#/definitions/uint32
51 description:
52 Voltage in microvolts at LRADC input when this key is
53 pressed
54
55 required:
56 - label
57 - linux,code
58 - channel
59 - voltage
60
61 additionalProperties: false
62
63required:
64 - compatible
65 - reg
66 - interrupts
67 - vref-supply
68
69additionalProperties: false
70
71examples:
72 - |
73 lradc: lradc@1c22800 {
74 compatible = "allwinner,sun4i-a10-lradc-keys";
75 reg = <0x01c22800 0x100>;
76 interrupts = <31>;
77 vref-supply = <®_vcc3v0>;
78
79 button-191 {
80 label = "Volume Up";
81 linux,code = <115>;
82 channel = <0>;
83 voltage = <191274>;
84 };
85
86 button-392 {
87 label = "Volume Down";
88 linux,code = <114>;
89 channel = <0>;
90 voltage = <392644>;
91 };
92 };
93
94...