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Revert "unicode: Don't special case ignorable code points"
[linux.git] / sound / soc / generic / audio-graph-card.c
blob7655425a3deb10077902d988427ee2c891ae3704
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // ASoC audio graph sound card support
4 //
5 // Copyright (C) 2016 Renesas Solutions Corp.
6 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7 //
8 // based on ${LINUX}/sound/soc/generic/simple-card.c
9
10 #include <linux/cleanup.h>
11 #include <linux/clk.h>
12 #include <linux/device.h>
13 #include <linux/gpio/consumer.h>
14 #include <linux/module.h>
15 #include <linux/of.h>
16 #include <linux/of_graph.h>
17 #include <linux/platform_device.h>
18 #include <linux/string.h>
19 #include <sound/graph_card.h>
20
21 #define DPCM_SELECTABLE 1
22
23 #define ep_to_port(ep) of_get_parent(ep)
24 static struct device_node *port_to_ports(struct device_node *port)
25 {
26 struct device_node *ports = of_get_parent(port);
27
28 if (!of_node_name_eq(ports, "ports")) {
29 of_node_put(ports);
30 return NULL;
31 }
32 return ports;
33 }
34
35 static int graph_outdrv_event(struct snd_soc_dapm_widget *w,
36 struct snd_kcontrol *kcontrol,
37 int event)
38 {
39 struct snd_soc_dapm_context *dapm = w->dapm;
40 struct simple_util_priv *priv = snd_soc_card_get_drvdata(dapm->card);
41
42 switch (event) {
43 case SND_SOC_DAPM_POST_PMU:
44 gpiod_set_value_cansleep(priv->pa_gpio, 1);
45 break;
46 case SND_SOC_DAPM_PRE_PMD:
47 gpiod_set_value_cansleep(priv->pa_gpio, 0);
48 break;
49 default:
50 return -EINVAL;
51 }
52
53 return 0;
54 }
55
56 static const struct snd_soc_dapm_widget graph_dapm_widgets[] = {
57 SND_SOC_DAPM_OUT_DRV_E("Amplifier", SND_SOC_NOPM,
58 0, 0, NULL, 0, graph_outdrv_event,
59 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
60 };
61
62 static const struct snd_soc_ops graph_ops = {
63 .startup = simple_util_startup,
64 .shutdown = simple_util_shutdown,
65 .hw_params = simple_util_hw_params,
66 };
67
68 static bool soc_component_is_pcm(struct snd_soc_dai_link_component *dlc)
69 {
70 struct snd_soc_dai *dai = snd_soc_find_dai_with_mutex(dlc);
71
72 if (dai && (dai->component->driver->pcm_construct ||
73 (dai->driver->ops && dai->driver->ops->pcm_new)))
74 return true;
75
76 return false;
77 }
78
79 static void graph_parse_convert(struct device *dev,
80 struct device_node *ep,
81 struct simple_util_data *adata)
82 {
83 struct device_node *top = dev->of_node;
84 struct device_node *port = ep_to_port(ep);
85 struct device_node *ports = port_to_ports(port);
86 struct device_node *node = of_graph_get_port_parent(ep);
87
88 simple_util_parse_convert(top, NULL, adata);
89 simple_util_parse_convert(ports, NULL, adata);
90 simple_util_parse_convert(port, NULL, adata);
91 simple_util_parse_convert(ep, NULL, adata);
92
93 of_node_put(port);
94 of_node_put(ports);
95 of_node_put(node);
96 }
97
98 static int graph_parse_node(struct simple_util_priv *priv,
99 struct device_node *ep,
100 struct link_info *li,
101 int *cpu)
102 {
103 struct device *dev = simple_priv_to_dev(priv);
104 struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
105 struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
106 struct snd_soc_dai_link_component *dlc;
107 struct simple_util_dai *dai;
108 int ret;
109
110 if (cpu) {
111 dlc = snd_soc_link_to_cpu(dai_link, 0);
112 dai = simple_props_to_dai_cpu(dai_props, 0);
113 } else {
114 dlc = snd_soc_link_to_codec(dai_link, 0);
115 dai = simple_props_to_dai_codec(dai_props, 0);
116 }
117
118 ret = graph_util_parse_dai(dev, ep, dlc, cpu);
119 if (ret < 0)
120 return ret;
121
122 ret = simple_util_parse_tdm(ep, dai);
123 if (ret < 0)
124 return ret;
125
126 ret = simple_util_parse_clk(dev, ep, dai, dlc);
127 if (ret < 0)
128 return ret;
129
130 return 0;
131 }
132
133 static int graph_link_init(struct simple_util_priv *priv,
134 struct device_node *ep_cpu,
135 struct device_node *ep_codec,
136 struct link_info *li,
137 char *name)
138 {
139 struct device *dev = simple_priv_to_dev(priv);
140 struct device_node *top = dev->of_node;
141 struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
142 struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
143 struct device_node *port_cpu = ep_to_port(ep_cpu);
144 struct device_node *port_codec = ep_to_port(ep_codec);
145 struct device_node *ports_cpu = port_to_ports(port_cpu);
146 struct device_node *ports_codec = port_to_ports(port_codec);
147 enum snd_soc_trigger_order trigger_start = SND_SOC_TRIGGER_ORDER_DEFAULT;
148 enum snd_soc_trigger_order trigger_stop = SND_SOC_TRIGGER_ORDER_DEFAULT;
149 bool playback_only = 0, capture_only = 0;
150 int ret;
151
152 ret = simple_util_parse_daifmt(dev, ep_cpu, ep_codec,
153 NULL, &dai_link->dai_fmt);
154 if (ret < 0)
155 goto init_end;
156
157 graph_util_parse_link_direction(top, &playback_only, &capture_only);
158 graph_util_parse_link_direction(port_cpu, &playback_only, &capture_only);
159 graph_util_parse_link_direction(port_codec, &playback_only, &capture_only);
160 graph_util_parse_link_direction(ep_cpu, &playback_only, &capture_only);
161 graph_util_parse_link_direction(ep_codec, &playback_only, &capture_only);
162
163 of_property_read_u32(top, "mclk-fs", &dai_props->mclk_fs);
164 of_property_read_u32(ports_cpu, "mclk-fs", &dai_props->mclk_fs);
165 of_property_read_u32(ports_codec, "mclk-fs", &dai_props->mclk_fs);
166 of_property_read_u32(port_cpu, "mclk-fs", &dai_props->mclk_fs);
167 of_property_read_u32(port_codec, "mclk-fs", &dai_props->mclk_fs);
168 of_property_read_u32(ep_cpu, "mclk-fs", &dai_props->mclk_fs);
169 of_property_read_u32(ep_codec, "mclk-fs", &dai_props->mclk_fs);
170
171 graph_util_parse_trigger_order(priv, top, &trigger_start, &trigger_stop);
172 graph_util_parse_trigger_order(priv, ports_cpu, &trigger_start, &trigger_stop);
173 graph_util_parse_trigger_order(priv, ports_codec, &trigger_start, &trigger_stop);
174 graph_util_parse_trigger_order(priv, port_cpu, &trigger_start, &trigger_stop);
175 graph_util_parse_trigger_order(priv, port_cpu, &trigger_start, &trigger_stop);
176 graph_util_parse_trigger_order(priv, ep_cpu, &trigger_start, &trigger_stop);
177 graph_util_parse_trigger_order(priv, ep_codec, &trigger_start, &trigger_stop);
178
179 dai_link->playback_only = playback_only;
180 dai_link->capture_only = capture_only;
181
182 dai_link->trigger_start = trigger_start;
183 dai_link->trigger_stop = trigger_stop;
184
185 dai_link->init = simple_util_dai_init;
186 dai_link->ops = &graph_ops;
187 if (priv->ops)
188 dai_link->ops = priv->ops;
189
190 ret = simple_util_set_dailink_name(dev, dai_link, name);
191 init_end:
192 of_node_put(ports_cpu);
193 of_node_put(ports_codec);
194 of_node_put(port_cpu);
195 of_node_put(port_codec);
196
197 return ret;
198 }
199
200 static int graph_dai_link_of_dpcm(struct simple_util_priv *priv,
201 struct device_node *cpu_ep,
202 struct device_node *codec_ep,
203 struct link_info *li)
204 {
205 struct device *dev = simple_priv_to_dev(priv);
206 struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
207 struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
208 struct device_node *top = dev->of_node;
209 struct device_node *ep = li->cpu ? cpu_ep : codec_ep;
210 char dai_name[64];
211 int ret;
212
213 dev_dbg(dev, "link_of DPCM (%pOF)\n", ep);
214
215 if (li->cpu) {
216 struct snd_soc_card *card = simple_priv_to_card(priv);
217 struct snd_soc_dai_link_component *cpus = snd_soc_link_to_cpu(dai_link, 0);
218 struct snd_soc_dai_link_component *platforms = snd_soc_link_to_platform(dai_link, 0);
219 int is_single_links = 0;
220
221 /* Codec is dummy */
222
223 /* FE settings */
224 dai_link->dynamic = 1;
225 dai_link->dpcm_merged_format = 1;
226
227 ret = graph_parse_node(priv, cpu_ep, li, &is_single_links);
228 if (ret)
229 return ret;
230
231 snprintf(dai_name, sizeof(dai_name),
232 "fe.%pOFP.%s", cpus->of_node, cpus->dai_name);
233 /*
234 * In BE<->BE connections it is not required to create
235 * PCM devices at CPU end of the dai link and thus 'no_pcm'
236 * flag needs to be set. It is useful when there are many
237 * BE components and some of these have to be connected to
238 * form a valid audio path.
239 *
240 * For example: FE <-> BE1 <-> BE2 <-> ... <-> BEn where
241 * there are 'n' BE components in the path.
242 */
243 if (card->component_chaining && !soc_component_is_pcm(cpus)) {
244 dai_link->no_pcm = 1;
245 dai_link->be_hw_params_fixup = simple_util_be_hw_params_fixup;
246 }
247
248 simple_util_canonicalize_cpu(cpus, is_single_links);
249 simple_util_canonicalize_platform(platforms, cpus);
250 } else {
251 struct snd_soc_codec_conf *cconf = simple_props_to_codec_conf(dai_props, 0);
252 struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0);
253 struct device_node *port;
254 struct device_node *ports;
255
256 /* CPU is dummy */
257
258 /* BE settings */
259 dai_link->no_pcm = 1;
260 dai_link->be_hw_params_fixup = simple_util_be_hw_params_fixup;
261
262 ret = graph_parse_node(priv, codec_ep, li, NULL);
263 if (ret < 0)
264 return ret;
265
266 snprintf(dai_name, sizeof(dai_name),
267 "be.%pOFP.%s", codecs->of_node, codecs->dai_name);
268
269 /* check "prefix" from top node */
270 port = ep_to_port(ep);
271 ports = port_to_ports(port);
272 snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node, "prefix");
273 snd_soc_of_parse_node_prefix(ports, cconf, codecs->of_node, "prefix");
274 snd_soc_of_parse_node_prefix(port, cconf, codecs->of_node, "prefix");
275
276 of_node_put(ports);
277 of_node_put(port);
278 }
279
280 graph_parse_convert(dev, ep, &dai_props->adata);
281
282 ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
283
284 li->link++;
285
286 return ret;
287 }
288
289 static int graph_dai_link_of(struct simple_util_priv *priv,
290 struct device_node *cpu_ep,
291 struct device_node *codec_ep,
292 struct link_info *li)
293 {
294 struct device *dev = simple_priv_to_dev(priv);
295 struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
296 struct snd_soc_dai_link_component *cpus = snd_soc_link_to_cpu(dai_link, 0);
297 struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0);
298 struct snd_soc_dai_link_component *platforms = snd_soc_link_to_platform(dai_link, 0);
299 char dai_name[64];
300 int ret, is_single_links = 0;
301
302 dev_dbg(dev, "link_of (%pOF)\n", cpu_ep);
303
304 ret = graph_parse_node(priv, cpu_ep, li, &is_single_links);
305 if (ret < 0)
306 return ret;
307
308 ret = graph_parse_node(priv, codec_ep, li, NULL);
309 if (ret < 0)
310 return ret;
311
312 snprintf(dai_name, sizeof(dai_name),
313 "%s-%s", cpus->dai_name, codecs->dai_name);
314
315 simple_util_canonicalize_cpu(cpus, is_single_links);
316 simple_util_canonicalize_platform(platforms, cpus);
317
318 ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
319 if (ret < 0)
320 return ret;
321
322 li->link++;
323
324 return 0;
325 }
326
327 static inline bool parse_as_dpcm_link(struct simple_util_priv *priv,
328 struct device_node *codec_port,
329 struct simple_util_data *adata)
330 {
331 if (priv->force_dpcm)
332 return true;
333
334 if (!priv->dpcm_selectable)
335 return false;
336
337 /*
338 * It is DPCM
339 * if Codec port has many endpoints,
340 * or has convert-xxx property
341 */
342 if ((of_get_child_count(codec_port) > 1) ||
343 simple_util_is_convert_required(adata))
344 return true;
345
346 return false;
347 }
348
349 static int __graph_for_each_link(struct simple_util_priv *priv,
350 struct link_info *li,
351 int (*func_noml)(struct simple_util_priv *priv,
352 struct device_node *cpu_ep,
353 struct device_node *codec_ep,
354 struct link_info *li),
355 int (*func_dpcm)(struct simple_util_priv *priv,
356 struct device_node *cpu_ep,
357 struct device_node *codec_ep,
358 struct link_info *li))
359 {
360 struct of_phandle_iterator it;
361 struct device *dev = simple_priv_to_dev(priv);
362 struct device_node *node = dev->of_node;
363 struct device_node *cpu_port;
364 struct device_node *codec_ep;
365 struct device_node *codec_port;
366 struct device_node *codec_port_old = NULL;
367 struct simple_util_data adata;
368 int rc, ret = 0;
369
370 /* loop for all listed CPU port */
371 of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
372 cpu_port = it.node;
373
374 /* loop for all CPU endpoint */
375 for_each_of_graph_port_endpoint(cpu_port, cpu_ep) {
376 /* get codec */
377 codec_ep = of_graph_get_remote_endpoint(cpu_ep);
378 codec_port = ep_to_port(codec_ep);
379
380 /* get convert-xxx property */
381 memset(&adata, 0, sizeof(adata));
382 graph_parse_convert(dev, codec_ep, &adata);
383 graph_parse_convert(dev, cpu_ep, &adata);
384
385 /* check if link requires DPCM parsing */
386 if (parse_as_dpcm_link(priv, codec_port, &adata)) {
387 /*
388 * Codec endpoint can be NULL for pluggable audio HW.
389 * Platform DT can populate the Codec endpoint depending on the
390 * plugged HW.
391 */
392 /* Do it all CPU endpoint, and 1st Codec endpoint */
393 if (li->cpu ||
394 ((codec_port_old != codec_port) && codec_ep))
395 ret = func_dpcm(priv, cpu_ep, codec_ep, li);
396 /* else normal sound */
397 } else {
398 if (li->cpu)
399 ret = func_noml(priv, cpu_ep, codec_ep, li);
400 }
401
402 of_node_put(codec_ep);
403 of_node_put(codec_port);
404
405 if (ret < 0)
406 return ret;
407
408 codec_port_old = codec_port;
409 }
410 }
411
412 return 0;
413 }
414
415 static int graph_for_each_link(struct simple_util_priv *priv,
416 struct link_info *li,
417 int (*func_noml)(struct simple_util_priv *priv,
418 struct device_node *cpu_ep,
419 struct device_node *codec_ep,
420 struct link_info *li),
421 int (*func_dpcm)(struct simple_util_priv *priv,
422 struct device_node *cpu_ep,
423 struct device_node *codec_ep,
424 struct link_info *li))
425 {
426 int ret;
427 /*
428 * Detect all CPU first, and Detect all Codec 2nd.
429 *
430 * In Normal sound case, all DAIs are detected
431 * as "CPU-Codec".
432 *
433 * In DPCM sound case,
434 * all CPUs are detected as "CPU-dummy", and
435 * all Codecs are detected as "dummy-Codec".
436 * To avoid random sub-device numbering,
437 * detect "dummy-Codec" in last;
438 */
439 for (li->cpu = 1; li->cpu >= 0; li->cpu--) {
440 ret = __graph_for_each_link(priv, li, func_noml, func_dpcm);
441 if (ret < 0)
442 break;
443 }
444
445 return ret;
446 }
447
448 static int graph_count_noml(struct simple_util_priv *priv,
449 struct device_node *cpu_ep,
450 struct device_node *codec_ep,
451 struct link_info *li)
452 {
453 struct device *dev = simple_priv_to_dev(priv);
454
455 if (li->link >= SNDRV_MAX_LINKS) {
456 dev_err(dev, "too many links\n");
457 return -EINVAL;
458 }
459
460 /*
461 * DON'T REMOVE platforms
462 * see
463 * simple-card.c :: simple_count_noml()
464 */
465 li->num[li->link].cpus = 1;
466 li->num[li->link].platforms = 1;
467
468 li->num[li->link].codecs = 1;
469
470 li->link += 1; /* 1xCPU-Codec */
471
472 dev_dbg(dev, "Count As Normal\n");
473
474 return 0;
475 }
476
477 static int graph_count_dpcm(struct simple_util_priv *priv,
478 struct device_node *cpu_ep,
479 struct device_node *codec_ep,
480 struct link_info *li)
481 {
482 struct device *dev = simple_priv_to_dev(priv);
483
484 if (li->link >= SNDRV_MAX_LINKS) {
485 dev_err(dev, "too many links\n");
486 return -EINVAL;
487 }
488
489 if (li->cpu) {
490 /*
491 * DON'T REMOVE platforms
492 * see
493 * simple-card.c :: simple_count_noml()
494 */
495 li->num[li->link].cpus = 1;
496 li->num[li->link].platforms = 1;
497
498 li->link++; /* 1xCPU-dummy */
499 } else {
500 li->num[li->link].codecs = 1;
501
502 li->link++; /* 1xdummy-Codec */
503 }
504
505 dev_dbg(dev, "Count As DPCM\n");
506
507 return 0;
508 }
509
510 static int graph_get_dais_count(struct simple_util_priv *priv,
511 struct link_info *li)
512 {
513 /*
514 * link_num : number of links.
515 * CPU-Codec / CPU-dummy / dummy-Codec
516 * dais_num : number of DAIs
517 * ccnf_num : number of codec_conf
518 * same number for "dummy-Codec"
519 *
520 * ex1)
521 * CPU0 --- Codec0 link : 5
522 * CPU1 --- Codec1 dais : 7
523 * CPU2 -/ ccnf : 1
524 * CPU3 --- Codec2
525 *
526 * => 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec
527 * => 7 DAIs = 4xCPU + 3xCodec
528 * => 1 ccnf = 1xdummy-Codec
529 *
530 * ex2)
531 * CPU0 --- Codec0 link : 5
532 * CPU1 --- Codec1 dais : 6
533 * CPU2 -/ ccnf : 1
534 * CPU3 -/
535 *
536 * => 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec
537 * => 6 DAIs = 4xCPU + 2xCodec
538 * => 1 ccnf = 1xdummy-Codec
539 *
540 * ex3)
541 * CPU0 --- Codec0 link : 6
542 * CPU1 -/ dais : 6
543 * CPU2 --- Codec1 ccnf : 2
544 * CPU3 -/
545 *
546 * => 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec
547 * => 6 DAIs = 4xCPU + 2xCodec
548 * => 2 ccnf = 2xdummy-Codec
549 *
550 * ex4)
551 * CPU0 --- Codec0 (convert-rate) link : 3
552 * CPU1 --- Codec1 dais : 4
553 * ccnf : 1
554 *
555 * => 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec
556 * => 4 DAIs = 2xCPU + 2xCodec
557 * => 1 ccnf = 1xdummy-Codec
558 */
559 return graph_for_each_link(priv, li,
560 graph_count_noml,
561 graph_count_dpcm);
562 }
563
564 int audio_graph_parse_of(struct simple_util_priv *priv, struct device *dev)
565 {
566 struct snd_soc_card *card = simple_priv_to_card(priv);
567 int ret;
568
569 struct link_info *li __free(kfree) = kzalloc(sizeof(*li), GFP_KERNEL);
570 if (!li)
571 return -ENOMEM;
572
573 card->owner = THIS_MODULE;
574 card->dev = dev;
575
576 ret = graph_get_dais_count(priv, li);
577 if (ret < 0)
578 return ret;
579
580 if (!li->link)
581 return -EINVAL;
582
583 ret = simple_util_init_priv(priv, li);
584 if (ret < 0)
585 return ret;
586
587 priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW);
588 if (IS_ERR(priv->pa_gpio)) {
589 ret = PTR_ERR(priv->pa_gpio);
590 dev_err(dev, "failed to get amplifier gpio: %d\n", ret);
591 return ret;
592 }
593
594 ret = simple_util_parse_widgets(card, NULL);
595 if (ret < 0)
596 return ret;
597
598 ret = simple_util_parse_routing(card, NULL);
599 if (ret < 0)
600 return ret;
601
602 memset(li, 0, sizeof(*li));
603 ret = graph_for_each_link(priv, li,
604 graph_dai_link_of,
605 graph_dai_link_of_dpcm);
606 if (ret < 0)
607 goto err;
608
609 ret = simple_util_parse_card_name(card, NULL);
610 if (ret < 0)
611 goto err;
612
613 snd_soc_card_set_drvdata(card, priv);
614
615 simple_util_debug_info(priv);
616
617 ret = devm_snd_soc_register_card(dev, card);
618 if (ret < 0)
619 goto err;
620
621 return 0;
622
623 err:
624 simple_util_clean_reference(card);
625
626 return dev_err_probe(dev, ret, "parse error\n");
627 }
628 EXPORT_SYMBOL_GPL(audio_graph_parse_of);
629
630 static int graph_probe(struct platform_device *pdev)
631 {
632 struct simple_util_priv *priv;
633 struct device *dev = &pdev->dev;
634 struct snd_soc_card *card;
635
636 /* Allocate the private data and the DAI link array */
637 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
638 if (!priv)
639 return -ENOMEM;
640
641 card = simple_priv_to_card(priv);
642 card->dapm_widgets = graph_dapm_widgets;
643 card->num_dapm_widgets = ARRAY_SIZE(graph_dapm_widgets);
644 card->probe = graph_util_card_probe;
645
646 if (of_device_get_match_data(dev))
647 priv->dpcm_selectable = 1;
648
649 return audio_graph_parse_of(priv, dev);
650 }
651
652 static const struct of_device_id graph_of_match[] = {
653 { .compatible = "audio-graph-card", },
654 { .compatible = "audio-graph-scu-card",
655 .data = (void *)DPCM_SELECTABLE },
656 {},
657 };
658 MODULE_DEVICE_TABLE(of, graph_of_match);
659
660 static struct platform_driver graph_card = {
661 .driver = {
662 .name = "asoc-audio-graph-card",
663 .pm = &snd_soc_pm_ops,
664 .of_match_table = graph_of_match,
665 },
666 .probe = graph_probe,
667 .remove = simple_util_remove,
668 };
669 module_platform_driver(graph_card);
670
671 MODULE_ALIAS("platform:asoc-audio-graph-card");
672 MODULE_LICENSE("GPL v2");
673 MODULE_DESCRIPTION("ASoC Audio Graph Sound Card");
674 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
Linux Kernel