118 lines
2.8 KiB
YAML
118 lines
2.8 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/sound/fsl,qmc-audio.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: QMC audio
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maintainers:
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- Herve Codina <herve.codina@bootlin.com>
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description: |
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The QMC audio is an ASoC component which uses QMC (QUICC Multichannel
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Controller) channels to transfer the audio data.
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It provides as many DAI as the number of QMC channel used.
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allOf:
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- $ref: dai-common.yaml#
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properties:
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compatible:
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const: fsl,qmc-audio
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'#address-cells':
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const: 1
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'#size-cells':
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const: 0
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'#sound-dai-cells':
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const: 1
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patternProperties:
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'^dai@([0-9]|[1-5][0-9]|6[0-3])$':
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description:
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A DAI managed by this controller
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type: object
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properties:
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reg:
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minimum: 0
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maximum: 63
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description:
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The DAI number
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fsl,qmc-chan:
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$ref: /schemas/types.yaml#/definitions/phandle-array
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items:
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- items:
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- description: phandle to QMC node
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- description: Channel number
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description:
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Should be a phandle/number pair. The phandle to QMC node and the QMC
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channel to use for this DAI.
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required:
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- reg
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- fsl,qmc-chan
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required:
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- compatible
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- '#address-cells'
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- '#size-cells'
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- '#sound-dai-cells'
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additionalProperties: false
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examples:
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- |
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audio_controller: audio-controller {
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compatible = "fsl,qmc-audio";
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#address-cells = <1>;
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#size-cells = <0>;
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#sound-dai-cells = <1>;
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dai@16 {
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reg = <16>;
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fsl,qmc-chan = <&qmc 16>;
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};
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dai@17 {
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reg = <17>;
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fsl,qmc-chan = <&qmc 17>;
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};
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};
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sound {
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compatible = "simple-audio-card";
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#address-cells = <1>;
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#size-cells = <0>;
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simple-audio-card,dai-link@0 {
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reg = <0>;
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format = "dsp_b";
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cpu {
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sound-dai = <&audio_controller 16>;
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};
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codec {
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sound-dai = <&codec1>;
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dai-tdm-slot-num = <4>;
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dai-tdm-slot-width = <8>;
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/* TS 3, 5, 7, 9 */
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dai-tdm-slot-tx-mask = <0 0 0 1 0 1 0 1 0 1>;
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dai-tdm-slot-rx-mask = <0 0 0 1 0 1 0 1 0 1>;
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};
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};
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simple-audio-card,dai-link@1 {
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reg = <1>;
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format = "dsp_b";
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cpu {
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sound-dai = <&audio_controller 17>;
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};
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codec {
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sound-dai = <&codec2>;
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dai-tdm-slot-num = <4>;
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dai-tdm-slot-width = <8>;
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/* TS 2, 4, 6, 8 */
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dai-tdm-slot-tx-mask = <0 0 1 0 1 0 1 0 1>;
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dai-tdm-slot-rx-mask = <0 0 1 0 1 0 1 0 1>;
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};
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};
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};
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