1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/input/allwi 4 $id: http://devicetree.org/schemas/input/allwinner,sun4i-a10-lradc-keys.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Allwinner A10 LRADC !! 7 title: Allwinner A10 LRADC Device Tree Bindings
8 8
9 maintainers: 9 maintainers:
10 - Chen-Yu Tsai <wens@csie.org> 10 - Chen-Yu Tsai <wens@csie.org>
11 - Maxime Ripard <mripard@kernel.org> 11 - Maxime Ripard <mripard@kernel.org>
12 12
13 properties: 13 properties:
14 compatible: 14 compatible:
15 oneOf: 15 oneOf:
16 - const: allwinner,sun4i-a10-lradc-keys 16 - const: allwinner,sun4i-a10-lradc-keys
17 - const: allwinner,sun8i-a83t-r-lradc 17 - const: allwinner,sun8i-a83t-r-lradc
18 - items: 18 - items:
19 - enum: !! 19 - const: allwinner,sun50i-a64-lradc
20 - allwinner,suniv-f1c100s-lradc <<
21 - allwinner,sun50i-a64-lradc <<
22 - const: allwinner,sun8i-a83t-r-lrad 20 - const: allwinner,sun8i-a83t-r-lradc
23 - const: allwinner,sun50i-r329-lradc <<
24 - items: <<
25 - enum: <<
26 - allwinner,sun50i-h616-lradc <<
27 - allwinner,sun20i-d1-lradc <<
28 - const: allwinner,sun50i-r329-lradc <<
29 21
30 reg: 22 reg:
31 maxItems: 1 23 maxItems: 1
32 24
33 clocks: <<
34 maxItems: 1 <<
35 <<
36 resets: <<
37 maxItems: 1 <<
38 <<
39 interrupts: 25 interrupts:
40 maxItems: 1 26 maxItems: 1
41 27
42 vref-supply: 28 vref-supply:
43 description: 29 description:
44 Regulator for the LRADC reference voltag 30 Regulator for the LRADC reference voltage
45 31
46 wakeup-source: true 32 wakeup-source: true
47 33
48 patternProperties: 34 patternProperties:
49 "^button-[0-9]+$": 35 "^button-[0-9]+$":
50 type: object 36 type: object
51 $ref: input.yaml# <<
52 properties: 37 properties:
53 label: 38 label:
>> 39 $ref: /schemas/types.yaml#/definitions/string
54 description: Descriptive name of the k 40 description: Descriptive name of the key
55 41
56 linux,code: true !! 42 linux,code:
>> 43 $ref: /schemas/types.yaml#/definitions/uint32
>> 44 description: Keycode to emit
57 45
58 channel: 46 channel:
59 $ref: /schemas/types.yaml#/definitions 47 $ref: /schemas/types.yaml#/definitions/uint32
60 enum: [0, 1] 48 enum: [0, 1]
61 description: ADC Channel this key is a 49 description: ADC Channel this key is attached to
62 50
63 voltage: 51 voltage:
64 $ref: /schemas/types.yaml#/definitions 52 $ref: /schemas/types.yaml#/definitions/uint32
65 description: 53 description:
66 Voltage in microvolts at LRADC input 54 Voltage in microvolts at LRADC input when this key is
67 pressed 55 pressed
68 56
69 required: 57 required:
70 - label 58 - label
71 - linux,code 59 - linux,code
72 - channel 60 - channel
73 - voltage 61 - voltage
74 62
75 additionalProperties: false 63 additionalProperties: false
76 64
77 required: 65 required:
78 - compatible 66 - compatible
79 - reg 67 - reg
80 - interrupts 68 - interrupts
81 - vref-supply 69 - vref-supply
82 <<
83 if: <<
84 properties: <<
85 compatible: <<
86 contains: <<
87 enum: <<
88 - allwinner,sun50i-r329-lradc <<
89 <<
90 then: <<
91 required: <<
92 - clocks <<
93 - resets <<
94 70
95 additionalProperties: false 71 additionalProperties: false
96 72
97 examples: 73 examples:
98 - | 74 - |
99 lradc: lradc@1c22800 { 75 lradc: lradc@1c22800 {
100 compatible = "allwinner,sun4i-a10-lrad 76 compatible = "allwinner,sun4i-a10-lradc-keys";
101 reg = <0x01c22800 0x100>; 77 reg = <0x01c22800 0x100>;
102 interrupts = <31>; 78 interrupts = <31>;
103 vref-supply = <®_vcc3v0>; 79 vref-supply = <®_vcc3v0>;
104 80
105 button-191 { 81 button-191 {
106 label = "Volume Up"; 82 label = "Volume Up";
107 linux,code = <115>; 83 linux,code = <115>;
108 channel = <0>; 84 channel = <0>;
109 voltage = <191274>; 85 voltage = <191274>;
110 }; 86 };
111 87
112 button-392 { 88 button-392 {
113 label = "Volume Down"; 89 label = "Volume Down";
114 linux,code = <114>; 90 linux,code = <114>;
115 channel = <0>; 91 channel = <0>;
116 voltage = <392644>; 92 voltage = <392644>;
117 }; 93 };
118 }; 94 };
119 95
120 ... 96 ...
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