blob: 3c75c8c789870624b9978c93ff9768476e1dfcaa (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/imx-audio-card.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: NXP i.MX audio sound card.
maintainers:
- Shengjiu Wang <shengjiu.wang@nxp.com>
allOf:
- $ref: sound-card-common.yaml#
properties:
compatible:
enum:
- fsl,imx-audio-card
patternProperties:
".*-dai-link$":
description:
Each subnode represents a dai link. Subnodes of each dai links would be
cpu/codec dais.
type: object
properties:
link-name:
description: Indicates dai-link name and PCM stream name.
$ref: /schemas/types.yaml#/definitions/string
maxItems: 1
format:
description: audio format.
items:
enum:
- i2s
- dsp_b
dai-tdm-slot-num:
description: see tdm-slot.txt.
$ref: /schemas/types.yaml#/definitions/uint32
dai-tdm-slot-width:
description: see tdm-slot.txt.
$ref: /schemas/types.yaml#/definitions/uint32
playback-only:
description: link is used only for playback
$ref: /schemas/types.yaml#/definitions/flag
capture-only:
description: link is used only for capture
$ref: /schemas/types.yaml#/definitions/flag
cpu:
description: Holds subnode which indicates cpu dai.
type: object
additionalProperties: false
properties:
sound-dai:
maxItems: 1
codec:
description: Holds subnode which indicates codec dai.
type: object
additionalProperties: false
properties:
sound-dai:
minItems: 1
maxItems: 2
fsl,mclk-equal-bclk:
description: Indicates mclk can be equal to bclk, especially for sai interface
$ref: /schemas/types.yaml#/definitions/flag
required:
- link-name
- cpu
allOf:
- not:
required:
- playback-only
- capture-only
additionalProperties: false
required:
- compatible
unevaluatedProperties: false
examples:
- |
sound-ak4458 {
compatible = "fsl,imx-audio-card";
model = "ak4458-audio";
pri-dai-link {
link-name = "akcodec";
format = "i2s";
fsl,mclk-equal-bclk;
cpu {
sound-dai = <&sai1>;
};
codec {
sound-dai = <&ak4458_1>, <&ak4458_2>;
};
};
fe-dai-link {
link-name = "HiFi-ASRC-FE";
format = "i2s";
cpu {
sound-dai = <&easrc>;
};
};
be-dai-link {
link-name = "HiFi-ASRC-BE";
format = "dsp_b";
dai-tdm-slot-num = <8>;
dai-tdm-slot-width = <32>;
fsl,mclk-equal-bclk;
cpu {
sound-dai = <&sai1>;
};
codec {
sound-dai = <&ak4458_1>, <&ak4458_2>;
};
};
};
|
