tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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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 - const: allwinner,sun50i-r329-lradc
22 - items:
23 - const: allwinner,sun20i-d1-lradc
24 - const: allwinner,sun50i-r329-lradc
25
26 reg:
27 maxItems: 1
28
29 clocks:
30 maxItems: 1
31
32 resets:
33 maxItems: 1
34
35 interrupts:
36 maxItems: 1
37
38 vref-supply:
39 description:
40 Regulator for the LRADC reference voltage
41
42 wakeup-source: true
43
44patternProperties:
45 "^button-[0-9]+$":
46 type: object
47 properties:
48 label:
49 $ref: /schemas/types.yaml#/definitions/string
50 description: Descriptive name of the key
51
52 linux,code:
53 $ref: /schemas/types.yaml#/definitions/uint32
54 description: Keycode to emit
55
56 channel:
57 $ref: /schemas/types.yaml#/definitions/uint32
58 enum: [0, 1]
59 description: ADC Channel this key is attached to
60
61 voltage:
62 $ref: /schemas/types.yaml#/definitions/uint32
63 description:
64 Voltage in microvolts at LRADC input when this key is
65 pressed
66
67 required:
68 - label
69 - linux,code
70 - channel
71 - voltage
72
73 additionalProperties: false
74
75required:
76 - compatible
77 - reg
78 - interrupts
79 - vref-supply
80
81if:
82 properties:
83 compatible:
84 contains:
85 enum:
86 - allwinner,sun50i-r329-lradc
87
88then:
89 required:
90 - clocks
91 - resets
92
93additionalProperties: false
94
95examples:
96 - |
97 lradc: lradc@1c22800 {
98 compatible = "allwinner,sun4i-a10-lradc-keys";
99 reg = <0x01c22800 0x100>;
100 interrupts = <31>;
101 vref-supply = <®_vcc3v0>;
102
103 button-191 {
104 label = "Volume Up";
105 linux,code = <115>;
106 channel = <0>;
107 voltage = <191274>;
108 };
109
110 button-392 {
111 label = "Volume Down";
112 linux,code = <114>;
113 channel = <0>;
114 voltage = <392644>;
115 };
116 };
117
118...