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: <<
13 - $ref: sound-card-common.yaml# <<
14 <<
15 properties: 12 properties:
16 compatible: 13 compatible:
17 enum: 14 enum:
18 - fsl,imx-audio-card 15 - fsl,imx-audio-card
19 16
>> 17 model:
>> 18 $ref: /schemas/types.yaml#/definitions/string
>> 19 description: User specified audio sound card name
>> 20
>> 21 audio-routing:
>> 22 $ref: /schemas/types.yaml#/definitions/non-unique-string-array
>> 23 description:
>> 24 A list of the connections between audio components. Each entry is a
>> 25 pair of strings, the first being the connection's sink, the second
>> 26 being the connection's source. Valid names could be power supplies,
>> 27 MicBias of codec and the jacks on the board.
>> 28
20 patternProperties: 29 patternProperties:
21 ".*-dai-link$": 30 ".*-dai-link$":
22 description: 31 description:
23 Each subnode represents a dai link. Subn 32 Each subnode represents a dai link. Subnodes of each dai links would be
24 cpu/codec dais. 33 cpu/codec dais.
25 34
26 type: object 35 type: object
27 36
28 properties: 37 properties:
29 link-name: 38 link-name:
30 description: Indicates dai-link name a 39 description: Indicates dai-link name and PCM stream name.
31 $ref: /schemas/types.yaml#/definitions 40 $ref: /schemas/types.yaml#/definitions/string
32 maxItems: 1 41 maxItems: 1
33 42
34 format: 43 format:
35 description: audio format. 44 description: audio format.
36 items: 45 items:
37 enum: 46 enum:
38 - i2s 47 - i2s
39 - dsp_b 48 - dsp_b
40 49
41 dai-tdm-slot-num: 50 dai-tdm-slot-num:
42 description: see tdm-slot.txt. 51 description: see tdm-slot.txt.
43 $ref: /schemas/types.yaml#/definitions 52 $ref: /schemas/types.yaml#/definitions/uint32
44 53
45 dai-tdm-slot-width: 54 dai-tdm-slot-width:
46 description: see tdm-slot.txt. 55 description: see tdm-slot.txt.
47 $ref: /schemas/types.yaml#/definitions 56 $ref: /schemas/types.yaml#/definitions/uint32
48 57
49 cpu: 58 cpu:
50 description: Holds subnode which indic 59 description: Holds subnode which indicates cpu dai.
51 type: object 60 type: object
52 additionalProperties: false 61 additionalProperties: false
53 properties: 62 properties:
54 sound-dai: 63 sound-dai:
55 maxItems: 1 64 maxItems: 1
56 65
57 codec: 66 codec:
58 description: Holds subnode which indic 67 description: Holds subnode which indicates codec dai.
59 type: object 68 type: object
60 additionalProperties: false 69 additionalProperties: false
61 properties: 70 properties:
62 sound-dai: 71 sound-dai:
63 minItems: 1 72 minItems: 1
64 maxItems: 2 73 maxItems: 2
65 74
66 fsl,mclk-equal-bclk: 75 fsl,mclk-equal-bclk:
67 description: Indicates mclk can be equ 76 description: Indicates mclk can be equal to bclk, especially for sai interface
68 $ref: /schemas/types.yaml#/definitions 77 $ref: /schemas/types.yaml#/definitions/flag
69 78
70 required: 79 required:
71 - link-name 80 - link-name
72 - cpu 81 - cpu
73 82
74 additionalProperties: false 83 additionalProperties: false
75 84
76 required: 85 required:
77 - compatible 86 - compatible
>> 87 - model
78 88
79 unevaluatedProperties: false !! 89 additionalProperties: false
80 90
81 examples: 91 examples:
82 - | 92 - |
83 sound-ak4458 { 93 sound-ak4458 {
84 compatible = "fsl,imx-audio-card"; 94 compatible = "fsl,imx-audio-card";
85 model = "ak4458-audio"; 95 model = "ak4458-audio";
86 pri-dai-link { 96 pri-dai-link {
87 link-name = "akcodec"; 97 link-name = "akcodec";
88 format = "i2s"; 98 format = "i2s";
89 fsl,mclk-equal-bclk; 99 fsl,mclk-equal-bclk;
90 cpu { 100 cpu {
91 sound-dai = <&sai1>; 101 sound-dai = <&sai1>;
92 }; 102 };
93 codec { 103 codec {
94 sound-dai = <&ak4458_1>, <&ak 104 sound-dai = <&ak4458_1>, <&ak4458_2>;
95 }; 105 };
96 }; 106 };
97 fe-dai-link { 107 fe-dai-link {
98 link-name = "HiFi-ASRC-FE"; 108 link-name = "HiFi-ASRC-FE";
99 format = "i2s"; 109 format = "i2s";
100 cpu { 110 cpu {
101 sound-dai = <&easrc>; 111 sound-dai = <&easrc>;
102 }; 112 };
103 }; 113 };
104 be-dai-link { 114 be-dai-link {
105 link-name = "HiFi-ASRC-BE"; 115 link-name = "HiFi-ASRC-BE";
106 format = "dsp_b"; 116 format = "dsp_b";
107 dai-tdm-slot-num = <8>; 117 dai-tdm-slot-num = <8>;
108 dai-tdm-slot-width = <32>; 118 dai-tdm-slot-width = <32>;
109 fsl,mclk-equal-bclk; 119 fsl,mclk-equal-bclk;
110 cpu { 120 cpu {
111 sound-dai = <&sai1>; 121 sound-dai = <&sai1>;
112 }; 122 };
113 codec { 123 codec {
114 sound-dai = <&ak4458_1>, <&ak4 124 sound-dai = <&ak4458_1>, <&ak4458_2>;
115 }; 125 };
116 }; 126 };
117 }; 127 };
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