1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/amlogic,axg-sound-card.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Amlogic AXG 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 const: amlogic,axg-sound-card
18
19 audio-aux-devs:
20 $ref: /schemas/types.yaml#/definitions/phandle-array
21 description: list of auxiliary devices
22
23 audio-widgets:
24 $ref: /schemas/types.yaml#/definitions/non-unique-string-array
25 description:
26 A list off component DAPM widget. Each entry is a pair of strings,
27 the first being the widget type, the second being the widget name
28
29 clocks:
30 minItems: 1
31 maxItems: 3
32 description:
33 Base PLL clocks of audio susbsytem, used to configure base clock
34 frequencies for different audio use-cases.
35
36 patternProperties:
37 "^dai-link-[0-9]+$":
38 type: object
39 additionalProperties: false
40 description:
41 Container for dai-link level properties and the CODEC sub-nodes.
42 There should be at least one (and probably more) subnode of this type
43
44 properties:
45 dai-format:
46 $ref: /schemas/types.yaml#/definitions/string
47 enum: [ i2s, left-j, dsp_a ]
48
49 dai-tdm-slot-num:
50 $ref: /schemas/types.yaml#/definitions/uint32
51 description:
52 Number of slots in use. If omitted, slot number is set to
53 accommodate the largest mask provided.
54 maximum: 32
55
56 dai-tdm-slot-width:
57 $ref: /schemas/types.yaml#/definitions/uint32
58 description: Width in bits for each slot
59 enum: [ 8, 16, 20, 24, 32 ]
60 default: 32
61
62 mclk-fs:
63 $ref: /schemas/types.yaml#/definitions/uint32
64 description:
65 Multiplication factor between the frame rate and master clock
66 rate
67
68 sound-dai:
69 maxItems: 1
70 description: phandle of the CPU DAI
71
72 patternProperties:
73 "^dai-tdm-slot-(t|r)x-mask-[0-3]$":
74 $ref: /schemas/types.yaml#/definitions/uint32-array
75 minItems: 1
76 maxItems: 32
77 description:
78 Transmit and receive cpu slot masks of each TDM lane
79 When omitted, mask is assumed to have to no slots. A valid
80 interface must have at least one slot, so at least one these
81 mask should be provided with an enabled slot.
82
83 "^codec(-[0-9]+)?$":
84 type: object
85 additionalProperties: false
86 description:
87 dai-link representing backend links should have at least one subnode.
88 One subnode for each codec of the dai-link. dai-link representing
89 frontend links have no codec, therefore have no subnodes
90
91 properties:
92 sound-dai:
93 maxItems: 1
94 description: phandle of the codec DAI
95
96 patternProperties:
97 "^dai-tdm-slot-(t|r)x-mask$":
98 $ref: /schemas/types.yaml#/definitions/uint32-array
99 minItems: 1
100 maxItems: 32
101 description: Transmit and receive codec slot masks
102
103 required:
104 - sound-dai
105
106 required:
107 - sound-dai
108
109 required:
110 - dai-link-0
111
112 unevaluatedProperties: false
113
114 examples:
115 - |
116 sound {
117 compatible = "amlogic,axg-sound-card";
118 model = "AXG-S420";
119 audio-aux-devs = <&tdmin_a>, <&tdmout_c>;
120 audio-widgets = "Line", "Lineout",
121 "Line", "Linein",
122 "Speaker", "Speaker1 Left",
123 "Speaker", "Speaker1 Right",
124 "Speaker", "Speaker2 Left",
125 "Speaker", "Speaker2 Right";
126 audio-routing = "TDMOUT_C IN 0", "FRDDR_A OUT 2",
127 "SPDIFOUT IN 0", "FRDDR_A OUT 3",
128 "TDM_C Playback", "TDMOUT_C OUT",
129 "TDMIN_A IN 2", "TDM_C Capture",
130 "TDMIN_A IN 5", "TDM_C Loopback",
131 "TODDR_A IN 0", "TDMIN_A OUT",
132 "Lineout", "Lineout AOUTL",
133 "Lineout", "Lineout AOUTR",
134 "Speaker1 Left", "SPK1 OUT_A",
135 "Speaker2 Left", "SPK2 OUT_A",
136 "Speaker1 Right", "SPK1 OUT_B",
137 "Speaker2 Right", "SPK2 OUT_B",
138 "Linein AINL", "Linein",
139 "Linein AINR", "Linein";
140
141 dai-link-0 {
142 sound-dai = <&frddr_a>;
143 };
144
145 dai-link-1 {
146 sound-dai = <&toddr_a>;
147 };
148
149 dai-link-2 {
150 sound-dai = <&tdmif_c>;
151 dai-format = "i2s";
152 dai-tdm-slot-tx-mask-2 = <1 1>;
153 dai-tdm-slot-tx-mask-3 = <1 1>;
154 dai-tdm-slot-rx-mask-1 = <1 1>;
155 mclk-fs = <256>;
156
157 codec-0 {
158 sound-dai = <&lineout>;
159 };
160
161 codec-1 {
162 sound-dai = <&speaker_amp1>;
163 };
164
165 codec-2 {
166 sound-dai = <&speaker_amp2>;
167 };
168
169 codec-3 {
170 sound-dai = <&linein>;
171 };
172 };
173
174 dai-link-3 {
175 sound-dai = <&spdifout>;
176
177 codec {
178 sound-dai = <&spdif_dit>;
179 };
180 };
181 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.