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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
|
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/sound/simple-card.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Simple Audio Card Driver Device Tree Bindings
maintainers:
- Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
definitions:
frame-master:
description: Indicates dai-link frame master.
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle-array
- maxItems: 1
bitclock-master:
description: Indicates dai-link bit clock master
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle-array
- maxItems: 1
frame-inversion:
description: dai-link uses frame clock inversion
$ref: /schemas/types.yaml#/definitions/flag
bitclock-inversion:
description: dai-link uses bit clock inversion
$ref: /schemas/types.yaml#/definitions/flag
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
system-clock-frequency:
description: |
If a clock is specified and a multiplication factor is given with
mclk-fs, the clock will be set to the calculated mclk frequency
when the stream starts.
$ref: /schemas/types.yaml#/definitions/uint32
system-clock-direction-out:
description: |
specifies clock direction as 'out' on initialization.
It is useful for some aCPUs with fixed clocks.
$ref: /schemas/types.yaml#/definitions/flag
mclk-fs:
description: |
Multiplication factor between stream rate and codec mclk.
When defined, mclk-fs property defined in dai-link sub nodes are ignored.
$ref: /schemas/types.yaml#/definitions/uint32
aux-devs:
description: |
List of phandles pointing to auxiliary devices, such
as amplifiers, to be added to the sound card.
$ref: /schemas/types.yaml#/definitions/phandle-array
convert-rate:
description: CPU to Codec rate convert.
$ref: /schemas/types.yaml#/definitions/uint32
convert-channels:
description: CPU to Codec rate channels.
$ref: /schemas/types.yaml#/definitions/uint32
prefix:
description: "device name prefix"
$ref: /schemas/types.yaml#/definitions/string
label:
maxItems: 1
routing:
description: |
A list of the connections between audio components.
Each entry is a pair of strings, the first being the
connection's sink, the second being the connection's source.
$ref: /schemas/types.yaml#/definitions/non-unique-string-array
widgets:
description: User specified audio sound widgets.
$ref: /schemas/types.yaml#/definitions/non-unique-string-array
pin-switches:
description: the widget names for which pin switches must be created.
$ref: /schemas/types.yaml#/definitions/string-array
format:
description: audio format.
items:
enum:
- i2s
- right_j
- left_j
- dsp_a
- dsp_b
- ac97
- pdm
- msb
- lsb
dai:
type: object
properties:
sound-dai:
maxItems: 1
# common properties
mclk-fs:
$ref: "#/definitions/mclk-fs"
prefix:
$ref: "#/definitions/prefix"
frame-inversion:
$ref: "#/definitions/frame-inversion"
bitclock-inversion:
$ref: "#/definitions/bitclock-inversion"
frame-master:
$ref: /schemas/types.yaml#/definitions/flag
bitclock-master:
$ref: /schemas/types.yaml#/definitions/flag
dai-tdm-slot-num:
$ref: "#/definitions/dai-tdm-slot-num"
dai-tdm-slot-width:
$ref: "#/definitions/dai-tdm-slot-width"
clocks:
maxItems: 1
system-clock-frequency:
$ref: "#/definitions/system-clock-frequency"
system-clock-direction-out:
$ref: "#/definitions/system-clock-direction-out"
required:
- sound-dai
properties:
compatible:
contains:
enum:
- simple-audio-card
- simple-scu-audio-card
"#address-cells":
const: 1
"#size-cells":
const: 0
label:
$ref: "#/definitions/label"
simple-audio-card,name:
description: User specified audio sound card name.
$ref: /schemas/types.yaml#/definitions/string
# use patternProperties to avoid naming "xxx,yyy" issue
patternProperties:
"^simple-audio-card,widgets$":
$ref: "#/definitions/widgets"
"^simple-audio-card,routing$":
$ref: "#/definitions/routing"
"^simple-audio-card,cpu(@[0-9a-f]+)?":
$ref: "#/definitions/dai"
"^simple-audio-card,codec(@[0-9a-f]+)?":
$ref: "#/definitions/dai"
# common properties
"^simple-audio-card,frame-master$":
$ref: "#/definitions/frame-master"
"^simple-audio-card,bitclock-master$":
$ref: "#/definitions/bitclock-master"
"^simple-audio-card,frame-inversion$":
$ref: "#/definitions/frame-inversion"
"^simple-audio-card,bitclock-inversion$":
$ref: "#/definitions/bitclock-inversion"
"^simple-audio-card,format$":
$ref: "#/definitions/format"
"^simple-audio-card,mclk-fs$":
$ref: "#/definitions/mclk-fs"
"^simple-audio-card,aux-devs$":
$ref: "#/definitions/aux-devs"
"^simple-audio-card,convert-rate$":
$ref: "#/definitions/convert-rate"
"^simple-audio-card,convert-channels$":
$ref: "#/definitions/convert-channels"
"^simple-audio-card,prefix$":
$ref: "#/definitions/prefix"
"^simple-audio-card,pin-switches$":
$ref: "#/definitions/pin-switches"
"^simple-audio-card,hp-det-gpio$":
maxItems: 1
"^simple-audio-card,mic-det-gpio$":
maxItems: 1
"^simple-audio-card,dai-link(@[0-9a-f]+)?$":
description: |
Container for dai-link level properties and the CPU and CODEC sub-nodes.
This container may be omitted when the card has only one DAI link.
type: object
properties:
reg:
maxItems: 1
# common properties
frame-master:
$ref: "#/definitions/frame-master"
bitclock-master:
$ref: "#/definitions/bitclock-master"
frame-inversion:
$ref: "#/definitions/frame-inversion"
bitclock-inversion:
$ref: "#/definitions/bitclock-inversion"
format:
$ref: "#/definitions/format"
mclk-fs:
$ref: "#/definitions/mclk-fs"
aux-devs:
$ref: "#/definitions/aux-devs"
convert-rate:
$ref: "#/definitions/convert-rate"
convert-channels:
$ref: "#/definitions/convert-channels"
prefix:
$ref: "#/definitions/prefix"
pin-switches:
$ref: "#/definitions/pin-switches"
hp-det-gpio:
maxItems: 1
mic-det-gpio:
maxItems: 1
patternProperties:
"^cpu(@[0-9a-f]+)?":
$ref: "#/definitions/dai"
"^codec(@[0-9a-f]+)?":
$ref: "#/definitions/dai"
additionalProperties: false
required:
- compatible
additionalProperties: false
examples:
#--------------------
# single DAI link
#--------------------
- |
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "VF610-Tower-Sound-Card";
simple-audio-card,format = "left_j";
simple-audio-card,bitclock-master = <&dailink0_master>;
simple-audio-card,frame-master = <&dailink0_master>;
simple-audio-card,widgets =
"Microphone", "Microphone Jack",
"Headphone", "Headphone Jack",
"Speaker", "External Speaker";
simple-audio-card,routing =
"MIC_IN", "Microphone Jack",
"Headphone Jack", "HP_OUT",
"External Speaker", "LINE_OUT";
simple-audio-card,cpu {
sound-dai = <&sh_fsi2 0>;
};
dailink0_master: simple-audio-card,codec {
sound-dai = <&ak4648>;
clocks = <&osc>;
};
};
#--------------------
# Multi DAI links
#--------------------
- |
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "Cubox Audio";
#address-cells = <1>;
#size-cells = <0>;
simple-audio-card,dai-link@0 { /* I2S - HDMI */
reg = <0>;
format = "i2s";
cpu {
sound-dai = <&audio0>;
};
codec {
sound-dai = <&tda998x0>;
};
};
simple-audio-card,dai-link@1 { /* S/PDIF - HDMI */
reg = <1>;
cpu {
sound-dai = <&audio1>;
};
codec {
sound-dai = <&tda998x1>;
};
};
simple-audio-card,dai-link@2 { /* S/PDIF - S/PDIF */
reg = <2>;
cpu {
sound-dai = <&audio2>;
};
codec {
sound-dai = <&spdif_codec>;
};
};
};
#--------------------
# route audio from IMX6 SSI2 through TLV320DAC3100 codec
# through TPA6130A2 amplifier to headphones:
#--------------------
- |
sound {
compatible = "simple-audio-card";
simple-audio-card,widgets =
"Headphone", "Headphone Jack";
simple-audio-card,routing =
"Headphone Jack", "HPLEFT",
"Headphone Jack", "HPRIGHT",
"LEFTIN", "HPL",
"RIGHTIN", "HPR";
simple-audio-card,aux-devs = <&>;
simple-audio-card,cpu {
sound-dai = <&ssi2>;
};
simple-audio-card,codec {
sound-dai = <&codec>;
clocks = <&clocks>;
};
};
#--------------------
# Sampling Rate Conversion
#--------------------
- |
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "rsnd-ak4643";
simple-audio-card,format = "left_j";
simple-audio-card,bitclock-master = <&sndcodec>;
simple-audio-card,frame-master = <&sndcodec>;
simple-audio-card,convert-rate = <48000>;
simple-audio-card,prefix = "ak4642";
simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
"DAI0 Capture", "ak4642 Capture";
sndcpu: simple-audio-card,cpu {
sound-dai = <&rcar_sound>;
};
sndcodec: simple-audio-card,codec {
sound-dai = <&ak4643>;
system-clock-frequency = <11289600>;
};
};
#--------------------
# 2 CPU 1 Codec (Mixing)
#--------------------
- |
sound {
compatible = "simple-audio-card";
simple-audio-card,name = "rsnd-ak4643";
simple-audio-card,format = "left_j";
simple-audio-card,bitclock-master = <&dpcmcpu>;
simple-audio-card,frame-master = <&dpcmcpu>;
simple-audio-card,convert-rate = <48000>;
simple-audio-card,convert-channels = <2>;
simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
"ak4642 Playback", "DAI1 Playback";
dpcmcpu: simple-audio-card,cpu@0 {
sound-dai = <&rcar_sound 0>;
};
simple-audio-card,cpu@1 {
sound-dai = <&rcar_sound 1>;
};
simple-audio-card,codec {
prefix = "ak4642";
sound-dai = <&ak4643>;
clocks = <&audio_clock>;
};
};
#--------------------
# Multi DAI links with DPCM:
#
# CPU0 ------ ak4613
# CPU1 ------ PCM3168A-p /* DPCM 1ch/2ch */
# CPU2 --/ /* DPCM 3ch/4ch */
# CPU3 --/ /* DPCM 5ch/6ch */
# CPU4 --/ /* DPCM 7ch/8ch */
# CPU5 ------ PCM3168A-c
#--------------------
- |
sound {
compatible = "simple-audio-card";
simple-audio-card,routing =
"pcm3168a Playback", "DAI1 Playback",
"pcm3168a Playback", "DAI2 Playback",
"pcm3168a Playback", "DAI3 Playback",
"pcm3168a Playback", "DAI4 Playback";
simple-audio-card,dai-link@0 {
format = "left_j";
bitclock-master = <&sndcpu0>;
frame-master = <&sndcpu0>;
sndcpu0: cpu {
sound-dai = <&rcar_sound 0>;
};
codec {
sound-dai = <&ak4613>;
};
};
simple-audio-card,dai-link@1 {
format = "i2s";
bitclock-master = <&sndcpu1>;
frame-master = <&sndcpu1>;
convert-channels = <8>; /* TDM Split */
sndcpu1: cpu@0 {
sound-dai = <&rcar_sound 1>;
};
cpu@1 {
sound-dai = <&rcar_sound 2>;
};
cpu@2 {
sound-dai = <&rcar_sound 3>;
};
cpu@3 {
sound-dai = <&rcar_sound 4>;
};
codec {
mclk-fs = <512>;
prefix = "pcm3168a";
dai-tdm-slot-num = <8>;
sound-dai = <&pcm3168a 0>;
};
};
simple-audio-card,dai-link@2 {
format = "i2s";
bitclock-master = <&sndcpu2>;
frame-master = <&sndcpu2>;
sndcpu2: cpu {
sound-dai = <&rcar_sound 5>;
};
codec {
mclk-fs = <512>;
prefix = "pcm3168a";
sound-dai = <&pcm3168a 1>;
};
};
};
|
