1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/sound/audio 4 $id: http://devicetree.org/schemas/sound/audio-iio-aux.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Audio IIO auxiliary 7 title: Audio IIO auxiliary
8 8
9 maintainers: 9 maintainers:
10 - Herve Codina <herve.codina@bootlin.com> 10 - Herve Codina <herve.codina@bootlin.com>
11 11
12 description: 12 description:
13 Auxiliary device based on Industrial I/O dev 13 Auxiliary device based on Industrial I/O device channels
14 14
15 allOf: 15 allOf:
16 - $ref: dai-common.yaml# 16 - $ref: dai-common.yaml#
17 17
18 properties: 18 properties:
19 compatible: 19 compatible:
20 const: audio-iio-aux 20 const: audio-iio-aux
21 21
22 io-channels: 22 io-channels:
23 description: 23 description:
24 Industrial I/O device channels used 24 Industrial I/O device channels used
25 25
26 io-channel-names: 26 io-channel-names:
27 description: 27 description:
28 Industrial I/O channel names related to 28 Industrial I/O channel names related to io-channels.
29 These names are used to provides sound c 29 These names are used to provides sound controls, widgets and routes names.
30 30
31 snd-control-invert-range: 31 snd-control-invert-range:
32 $ref: /schemas/types.yaml#/definitions/uin 32 $ref: /schemas/types.yaml#/definitions/uint32-array
33 description: | 33 description: |
34 A list of 0/1 flags defining whether or 34 A list of 0/1 flags defining whether or not the related channel is
35 inverted 35 inverted
36 items: 36 items:
37 enum: [0, 1] 37 enum: [0, 1]
38 default: 0 38 default: 0
39 description: | 39 description: |
40 Invert the sound control value compare 40 Invert the sound control value compared to the IIO channel raw value.
41 - 1: The related sound control value 41 - 1: The related sound control value is inverted meaning that the
42 minimum sound control value cor 42 minimum sound control value correspond to the maximum IIO channel
43 raw value and the maximum sound 43 raw value and the maximum sound control value correspond to the
44 minimum IIO channel raw value. 44 minimum IIO channel raw value.
45 - 0: The related sound control value 45 - 0: The related sound control value is not inverted meaning that the
46 minimum (resp maximum) sound co 46 minimum (resp maximum) sound control value correspond to the
47 minimum (resp maximum) IIO chan 47 minimum (resp maximum) IIO channel raw value.
48 48
49 required: 49 required:
50 - compatible 50 - compatible
51 - io-channels 51 - io-channels
52 - io-channel-names 52 - io-channel-names
53 53
54 unevaluatedProperties: false 54 unevaluatedProperties: false
55 55
56 examples: 56 examples:
57 - | 57 - |
58 iio-aux { 58 iio-aux {
59 compatible = "audio-iio-aux"; 59 compatible = "audio-iio-aux";
60 io-channels = <&iio 0>, <&iio 1>, <&ii 60 io-channels = <&iio 0>, <&iio 1>, <&iio 2>, <&iio 3>;
61 io-channel-names = "CH0", "CH1", "CH2" 61 io-channel-names = "CH0", "CH1", "CH2", "CH3";
62 /* Invert CH1 and CH2 */ 62 /* Invert CH1 and CH2 */
63 snd-control-invert-range = <0 1 1 0>; 63 snd-control-invert-range = <0 1 1 0>;
64 }; 64 };
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