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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/sound/audio-iio-aux.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: Audio IIO auxiliary8 9maintainers:10 - Herve Codina <herve.codina@bootlin.com>11 12description:13 Auxiliary device based on Industrial I/O device channels14 15allOf:16 - $ref: dai-common.yaml#17 18properties:19 compatible:20 const: audio-iio-aux21 22 io-channels:23 description:24 Industrial I/O device channels used25 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-array33 description: |34 A list of 0/1 flags defining whether or not the related channel is35 inverted36 items:37 enum: [0, 1]38 default: 039 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 the42 minimum sound control value correspond to the maximum IIO channel43 raw value and the maximum sound control value correspond to the44 minimum IIO channel raw value.45 - 0: The related sound control value is not inverted meaning that the46 minimum (resp maximum) sound control value correspond to the47 minimum (resp maximum) IIO channel raw value.48 49required:50 - compatible51 - io-channels52 - io-channel-names53 54unevaluatedProperties: false55 56examples: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 };65