| 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/imx-audio-card.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: NXP i.MX audio sound card. |
| 8 | |
| 9 | maintainers: |
| 10 | - Shengjiu Wang <shengjiu.wang@nxp.com> |
| 11 | |
| 12 | allOf: |
| 13 | - $ref: sound-card-common.yaml# |
| 14 | |
| 15 | properties: |
| 16 | compatible: |
| 17 | enum: |
| 18 | - fsl,imx-audio-card |
| 19 | |
| 20 | patternProperties: |
| 21 | ".*-dai-link$": |
| 22 | description: |
| 23 | Each subnode represents a dai link. Subnodes of each dai links would be |
| 24 | cpu/codec dais. |
| 25 | |
| 26 | type: object |
| 27 | |
| 28 | properties: |
| 29 | link-name: |
| 30 | description: Indicates dai-link name and PCM stream name. |
| 31 | $ref: /schemas/types.yaml#/definitions/string |
| 32 | maxItems: 1 |
| 33 | |
| 34 | format: |
| 35 | description: audio format. |
| 36 | items: |
| 37 | enum: |
| 38 | - i2s |
| 39 | - dsp_b |
| 40 | |
| 41 | dai-tdm-slot-num: |
| 42 | description: see tdm-slot.txt. |
| 43 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 44 | |
| 45 | dai-tdm-slot-width: |
| 46 | description: see tdm-slot.txt. |
| 47 | $ref: /schemas/types.yaml#/definitions/uint32 |
| 48 | |
| 49 | cpu: |
| 50 | description: Holds subnode which indicates cpu dai. |
| 51 | type: object |
| 52 | additionalProperties: false |
| 53 | properties: |
| 54 | sound-dai: |
| 55 | maxItems: 1 |
| 56 | |
| 57 | codec: |
| 58 | description: Holds subnode which indicates codec dai. |
| 59 | type: object |
| 60 | additionalProperties: false |
| 61 | properties: |
| 62 | sound-dai: |
| 63 | minItems: 1 |
| 64 | maxItems: 2 |
| 65 | |
| 66 | fsl,mclk-equal-bclk: |
| 67 | description: Indicates mclk can be equal to bclk, especially for sai interface |
| 68 | $ref: /schemas/types.yaml#/definitions/flag |
| 69 | |
| 70 | required: |
| 71 | - link-name |
| 72 | - cpu |
| 73 | |
| 74 | additionalProperties: false |
| 75 | |
| 76 | required: |
| 77 | - compatible |
| 78 | |
| 79 | unevaluatedProperties: false |
| 80 | |
| 81 | examples: |
| 82 | - | |
| 83 | sound-ak4458 { |
| 84 | compatible = "fsl,imx-audio-card"; |
| 85 | model = "ak4458-audio"; |
| 86 | pri-dai-link { |
| 87 | link-name = "akcodec"; |
| 88 | format = "i2s"; |
| 89 | fsl,mclk-equal-bclk; |
| 90 | cpu { |
| 91 | sound-dai = <&sai1>; |
| 92 | }; |
| 93 | codec { |
| 94 | sound-dai = <&ak4458_1>, <&ak4458_2>; |
| 95 | }; |
| 96 | }; |
| 97 | fe-dai-link { |
| 98 | link-name = "HiFi-ASRC-FE"; |
| 99 | format = "i2s"; |
| 100 | cpu { |
| 101 | sound-dai = <&easrc>; |
| 102 | }; |
| 103 | }; |
| 104 | be-dai-link { |
| 105 | link-name = "HiFi-ASRC-BE"; |
| 106 | format = "dsp_b"; |
| 107 | dai-tdm-slot-num = <8>; |
| 108 | dai-tdm-slot-width = <32>; |
| 109 | fsl,mclk-equal-bclk; |
| 110 | cpu { |
| 111 | sound-dai = <&sai1>; |
| 112 | }; |
| 113 | codec { |
| 114 | sound-dai = <&ak4458_1>, <&ak4458_2>; |
| 115 | }; |
| 116 | }; |
| 117 | }; |