1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/amlogic,gx-sound-card.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Amlogic GX sound card
8
9 maintainers:
10 - Jerome Brunet <jbrunet@baylibre.com>
11
12 allOf:
13 - $ref: sound-card-common.yaml#
14
15 properties:
16 compatible:
17 items:
18 - const: amlogic,gx-sound-card
19
20 audio-aux-devs:
21 $ref: /schemas/types.yaml#/definitions/phandle-array
22 description: list of auxiliary devices
23
24 audio-widgets:
25 $ref: /schemas/types.yaml#/definitions/non-unique-string-array
26 description: |-
27 A list off component DAPM widget. Each entry is a pair of strings,
28 the first being the widget type, the second being the widget name
29
30 clocks:
31 minItems: 1
32 maxItems: 3
33 description:
34 Base PLL clocks of audio susbsytem, used to configure base clock
35 frequencies for different audio use-cases.
36
37 patternProperties:
38 "^dai-link-[0-9]+$":
39 type: object
40 additionalProperties: false
41 description: |-
42 dai-link child nodes:
43 Container for dai-link level properties and the CODEC sub-nodes.
44 There should be at least one (and probably more) subnode of this type
45
46 properties:
47 dai-format:
48 $ref: /schemas/types.yaml#/definitions/string
49 enum: [ i2s, left-j, dsp_a ]
50
51 mclk-fs:
52 $ref: /schemas/types.yaml#/definitions/uint32
53 description: |-
54 Multiplication factor between the frame rate and master clock
55 rate
56
57 sound-dai:
58 maxItems: 1
59 description: phandle of the CPU DAI
60
61 patternProperties:
62 "^codec(-[0-9]+)?$":
63 type: object
64 additionalProperties: false
65 description: |-
66 Codecs:
67 dai-link representing backend links should have at least one subnode.
68 One subnode for each codec of the dai-link. dai-link representing
69 frontend links have no codec, therefore have no subnodes
70
71 properties:
72 sound-dai:
73 maxItems: 1
74 description: phandle of the codec DAI
75
76 required:
77 - sound-dai
78
79 required:
80 - sound-dai
81
82 required:
83 - model
84 - dai-link-0
85
86 unevaluatedProperties: false
87
88 examples:
89 - |
90 sound {
91 compatible = "amlogic,gx-sound-card";
92 model = "GXL-ACME-S905X-FOO";
93 audio-aux-devs = <&>;
94 audio-routing = "I2S ENCODER I2S IN", "I2S FIFO Playback";
95
96 dai-link-0 {
97 sound-dai = <&i2s_fifo>;
98 };
99
100 dai-link-1 {
101 sound-dai = <&i2s_encoder>;
102 dai-format = "i2s";
103 mclk-fs = <256>;
104
105 codec-0 {
106 sound-dai = <&codec0>;
107 };
108
109 codec-1 {
110 sound-dai = <&codec1>;
111 };
112 };
113 };
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