1 # SPDX-License-Identifier: (GPL-2.0-only OR BS 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/sound/imx-a 4 $id: http://devicetree.org/schemas/sound/imx-audio-card.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: NXP i.MX audio sound card. 7 title: NXP i.MX audio sound card.
8 8
9 maintainers: 9 maintainers:
10 - Shengjiu Wang <shengjiu.wang@nxp.com> 10 - Shengjiu Wang <shengjiu.wang@nxp.com>
11 11
12 allOf: 12 allOf:
13 - $ref: sound-card-common.yaml# 13 - $ref: sound-card-common.yaml#
14 14
15 properties: 15 properties:
16 compatible: 16 compatible:
17 enum: 17 enum:
18 - fsl,imx-audio-card 18 - fsl,imx-audio-card
19 19
20 patternProperties: 20 patternProperties:
21 ".*-dai-link$": 21 ".*-dai-link$":
22 description: 22 description:
23 Each subnode represents a dai link. Subn 23 Each subnode represents a dai link. Subnodes of each dai links would be
24 cpu/codec dais. 24 cpu/codec dais.
25 25
26 type: object 26 type: object
27 27
28 properties: 28 properties:
29 link-name: 29 link-name:
30 description: Indicates dai-link name a 30 description: Indicates dai-link name and PCM stream name.
31 $ref: /schemas/types.yaml#/definitions 31 $ref: /schemas/types.yaml#/definitions/string
32 maxItems: 1 32 maxItems: 1
33 33
34 format: 34 format:
35 description: audio format. 35 description: audio format.
36 items: 36 items:
37 enum: 37 enum:
38 - i2s 38 - i2s
39 - dsp_b 39 - dsp_b
40 40
41 dai-tdm-slot-num: 41 dai-tdm-slot-num:
42 description: see tdm-slot.txt. 42 description: see tdm-slot.txt.
43 $ref: /schemas/types.yaml#/definitions 43 $ref: /schemas/types.yaml#/definitions/uint32
44 44
45 dai-tdm-slot-width: 45 dai-tdm-slot-width:
46 description: see tdm-slot.txt. 46 description: see tdm-slot.txt.
47 $ref: /schemas/types.yaml#/definitions 47 $ref: /schemas/types.yaml#/definitions/uint32
48 48
49 cpu: 49 cpu:
50 description: Holds subnode which indic 50 description: Holds subnode which indicates cpu dai.
51 type: object 51 type: object
52 additionalProperties: false 52 additionalProperties: false
53 properties: 53 properties:
54 sound-dai: 54 sound-dai:
55 maxItems: 1 55 maxItems: 1
56 56
57 codec: 57 codec:
58 description: Holds subnode which indic 58 description: Holds subnode which indicates codec dai.
59 type: object 59 type: object
60 additionalProperties: false 60 additionalProperties: false
61 properties: 61 properties:
62 sound-dai: 62 sound-dai:
63 minItems: 1 63 minItems: 1
64 maxItems: 2 64 maxItems: 2
65 65
66 fsl,mclk-equal-bclk: 66 fsl,mclk-equal-bclk:
67 description: Indicates mclk can be equ 67 description: Indicates mclk can be equal to bclk, especially for sai interface
68 $ref: /schemas/types.yaml#/definitions 68 $ref: /schemas/types.yaml#/definitions/flag
69 69
70 required: 70 required:
71 - link-name 71 - link-name
72 - cpu 72 - cpu
73 73
74 additionalProperties: false 74 additionalProperties: false
75 75
76 required: 76 required:
77 - compatible 77 - compatible
78 78
79 unevaluatedProperties: false 79 unevaluatedProperties: false
80 80
81 examples: 81 examples:
82 - | 82 - |
83 sound-ak4458 { 83 sound-ak4458 {
84 compatible = "fsl,imx-audio-card"; 84 compatible = "fsl,imx-audio-card";
85 model = "ak4458-audio"; 85 model = "ak4458-audio";
86 pri-dai-link { 86 pri-dai-link {
87 link-name = "akcodec"; 87 link-name = "akcodec";
88 format = "i2s"; 88 format = "i2s";
89 fsl,mclk-equal-bclk; 89 fsl,mclk-equal-bclk;
90 cpu { 90 cpu {
91 sound-dai = <&sai1>; 91 sound-dai = <&sai1>;
92 }; 92 };
93 codec { 93 codec {
94 sound-dai = <&ak4458_1>, <&ak 94 sound-dai = <&ak4458_1>, <&ak4458_2>;
95 }; 95 };
96 }; 96 };
97 fe-dai-link { 97 fe-dai-link {
98 link-name = "HiFi-ASRC-FE"; 98 link-name = "HiFi-ASRC-FE";
99 format = "i2s"; 99 format = "i2s";
100 cpu { 100 cpu {
101 sound-dai = <&easrc>; 101 sound-dai = <&easrc>;
102 }; 102 };
103 }; 103 };
104 be-dai-link { 104 be-dai-link {
105 link-name = "HiFi-ASRC-BE"; 105 link-name = "HiFi-ASRC-BE";
106 format = "dsp_b"; 106 format = "dsp_b";
107 dai-tdm-slot-num = <8>; 107 dai-tdm-slot-num = <8>;
108 dai-tdm-slot-width = <32>; 108 dai-tdm-slot-width = <32>;
109 fsl,mclk-equal-bclk; 109 fsl,mclk-equal-bclk;
110 cpu { 110 cpu {
111 sound-dai = <&sai1>; 111 sound-dai = <&sai1>;
112 }; 112 };
113 codec { 113 codec {
114 sound-dai = <&ak4458_1>, <&ak4 114 sound-dai = <&ak4458_1>, <&ak4458_2>;
115 }; 115 };
116 }; 116 };
117 }; 117 };
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