| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/sound/audio-iio-aux.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Audio IIO auxiliary |
| 8 | |
| 9 | maintainers: |
| 10 | - Herve Codina <herve.codina@bootlin.com> |
| 11 | |
| 12 | description: |
| 13 | Auxiliary device based on Industrial I/O device channels |
| 14 | |
| 15 | allOf: |
| 16 | - $ref: dai-common.yaml# |
| 17 | |
| 18 | properties: |
| 19 | compatible: |
| 20 | const: audio-iio-aux |
| 21 | |
| 22 | io-channels: |
| 23 | description: |
| 24 | Industrial I/O device channels used |
| 25 | |
| 26 | io-channel-names: |
| 27 | description: |
| 28 | Industrial I/O channel names related to io-channels. |
| 29 | These names are used to provides sound controls, widgets and routes names. |
| 30 | |
| 31 | snd-control-invert-range: |
| 32 | $ref: /schemas/types.yaml#/definitions/uint32-array |
| 33 | description: | |
| 34 | A list of 0/1 flags defining whether or not the related channel is |
| 35 | inverted |
| 36 | items: |
| 37 | enum: [0, 1] |
| 38 | default: 0 |
| 39 | description: | |
| 40 | Invert the sound control value compared to the IIO channel raw value. |
| 41 | - 1: The related sound control value is inverted meaning that the |
| 42 | minimum sound control value correspond to the maximum IIO channel |
| 43 | raw value and the maximum sound control value correspond to the |
| 44 | minimum IIO channel raw value. |
| 45 | - 0: The related sound control value is not inverted meaning that the |
| 46 | minimum (resp maximum) sound control value correspond to the |
| 47 | minimum (resp maximum) IIO channel raw value. |
| 48 | |
| 49 | required: |
| 50 | - compatible |
| 51 | - io-channels |
| 52 | - io-channel-names |
| 53 | |
| 54 | unevaluatedProperties: false |
| 55 | |
| 56 | examples: |
| 57 | - | |
| 58 | iio-aux { |
| 59 | compatible = "audio-iio-aux"; |
| 60 | io-channels = <&iio 0>, <&iio 1>, <&iio 2>, <&iio 3>; |
| 61 | io-channel-names = "CH0", "CH1", "CH2", "CH3"; |
| 62 | /* Invert CH1 and CH2 */ |
| 63 | snd-control-invert-range = <0 1 1 0>; |
| 64 | }; |