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1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)2%YAML 1.23---4$id: http://devicetree.org/schemas/sound/fsl,qmc-audio.yaml#5$schema: http://devicetree.org/meta-schemas/core.yaml#6 7title: QMC audio8 9maintainers:10 - Herve Codina <herve.codina@bootlin.com>11 12description: |13 The QMC audio is an ASoC component which uses QMC (QUICC Multichannel14 Controller) channels to transfer the audio data.15 It provides several DAIs. For each DAI, the DAI is working in interleaved mode16 if only one QMC channel is used by the DAI or it is working in non-interleaved17 mode if several QMC channels are used by the DAI.18 19allOf:20 - $ref: dai-common.yaml#21 22properties:23 compatible:24 const: fsl,qmc-audio25 26 '#address-cells':27 const: 128 '#size-cells':29 const: 030 '#sound-dai-cells':31 const: 132 33patternProperties:34 '^dai@([0-9]|[1-5][0-9]|6[0-3])$':35 description:36 A DAI managed by this controller37 type: object38 additionalProperties: false39 40 properties:41 reg:42 minimum: 043 maximum: 6344 description:45 The DAI number46 47 fsl,qmc-chan:48 $ref: /schemas/types.yaml#/definitions/phandle-array49 items:50 items:51 - description: phandle to QMC node52 - description: Channel number53 minItems: 154 description:55 Should be a phandle/number pair list. The list of phandle to QMC node56 and the QMC channel pair to use for this DAI.57 If only one phandle/number pair is provided, this DAI works in58 interleaved mode, i.e. audio channels for this DAI are interleaved in59 the QMC channel. If more than one pair is provided, this DAI works60 in non-interleave mode. In that case the first audio channel uses the61 the first QMC channel, the second audio channel uses the second QMC62 channel, etc...63 64 required:65 - reg66 - fsl,qmc-chan67 68required:69 - compatible70 - '#address-cells'71 - '#size-cells'72 - '#sound-dai-cells'73 74additionalProperties: false75 76examples:77 - |78 audio_controller: audio-controller {79 compatible = "fsl,qmc-audio";80 #address-cells = <1>;81 #size-cells = <0>;82 #sound-dai-cells = <1>;83 dai@16 {84 reg = <16>;85 fsl,qmc-chan = <&qmc 16>;86 };87 dai@17 {88 reg = <17>;89 fsl,qmc-chan = <&qmc 17>;90 };91 dai@18 {92 reg = <18>;93 /* Non-interleaved mode */94 fsl,qmc-chan = <&qmc 18>, <&qmc 19>;95 };96 };97 98 sound {99 compatible = "simple-audio-card";100 #address-cells = <1>;101 #size-cells = <0>;102 simple-audio-card,dai-link@0 {103 reg = <0>;104 format = "dsp_b";105 cpu {106 sound-dai = <&audio_controller 16>;107 };108 codec {109 sound-dai = <&codec1>;110 dai-tdm-slot-num = <4>;111 dai-tdm-slot-width = <8>;112 /* TS 3, 5, 7, 9 */113 dai-tdm-slot-tx-mask = <0 0 0 1 0 1 0 1 0 1>;114 dai-tdm-slot-rx-mask = <0 0 0 1 0 1 0 1 0 1>;115 };116 };117 simple-audio-card,dai-link@1 {118 reg = <1>;119 format = "dsp_b";120 cpu {121 sound-dai = <&audio_controller 17>;122 };123 codec {124 sound-dai = <&codec2>;125 dai-tdm-slot-num = <4>;126 dai-tdm-slot-width = <8>;127 /* TS 2, 4, 6, 8 */128 dai-tdm-slot-tx-mask = <0 0 1 0 1 0 1 0 1>;129 dai-tdm-slot-rx-mask = <0 0 1 0 1 0 1 0 1>;130 };131 };132 simple-audio-card,dai-link@2 {133 reg = <2>;134 format = "dsp_b";135 cpu {136 sound-dai = <&audio_controller 18>;137 };138 codec {139 sound-dai = <&codec3>;140 dai-tdm-slot-num = <2>;141 dai-tdm-slot-width = <8>;142 /* TS 9, 10 */143 dai-tdm-slot-tx-mask = <0 0 0 0 0 0 0 0 0 1 1>;144 dai-tdm-slot-rx-mask = <0 0 0 0 0 0 0 0 0 1 1>;145 };146 };147 };148