simple-card.c

  1// SPDX-License-Identifier: GPL-2.0
  2//
  3// ASoC simple sound card support
  4//
  5// Copyright (C) 2012 Renesas Solutions Corp.
  6// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  7
  8#include <linux/cleanup.h>
  9#include <linux/clk.h>
 10#include <linux/device.h>
 11#include <linux/module.h>
 12#include <linux/of.h>
 13#include <linux/of_platform.h>
 14#include <linux/platform_device.h>
 15#include <linux/string.h>
 16#include <sound/simple_card.h>
 17#include <sound/soc-dai.h>
 18#include <sound/soc.h>
 19
 20#define DPCM_SELECTABLE 1
 21
 22#define DAI	"sound-dai"
 23#define CELL	"#sound-dai-cells"
 24#define PREFIX	"simple-audio-card,"
 25
 26static const struct snd_soc_ops simple_ops = {
 27	.startup	= simple_util_startup,
 28	.shutdown	= simple_util_shutdown,
 29	.hw_params	= simple_util_hw_params,
 30};
 31
 32#define simple_ret(priv, ret) _simple_ret(priv, __func__, ret)
 33static inline int _simple_ret(struct simple_util_priv *priv,
 34			      const char *func, int ret)
 35{
 36	return snd_soc_ret(simple_priv_to_dev(priv), ret, "at %s()\n", func);
 37}
 38
 39static int simple_parse_platform(struct simple_util_priv *priv,
 40				 struct device_node *node,
 41				 struct snd_soc_dai_link_component *dlc)
 42{
 43	struct of_phandle_args args;
 44	int ret;
 45
 46	if (!node)
 47		return 0;
 48
 49	/*
 50	 * Get node via "sound-dai = <&phandle port>"
 51	 * it will be used as xxx_of_node on soc_bind_dai_link()
 52	 */
 53	ret = of_parse_phandle_with_args(node, DAI, CELL, 0, &args);
 54	if (ret)
 55		return simple_ret(priv, ret);
 56
 57	/* dai_name is not required and may not exist for plat component */
 58
 59	dlc->of_node = args.np;
 60
 61	return 0;
 62}
 63
 64static int simple_parse_dai(struct simple_util_priv *priv,
 65			    struct device_node *node,
 66			    struct snd_soc_dai_link_component *dlc,
 67			    int *is_single_link)
 68{
 69	struct device *dev = simple_priv_to_dev(priv);
 70	struct of_phandle_args args;
 71	struct snd_soc_dai *dai;
 72	int ret;
 73
 74	if (!node)
 75		return 0;
 76
 77	/*
 78	 * Get node via "sound-dai = <&phandle port>"
 79	 * it will be used as xxx_of_node on soc_bind_dai_link()
 80	 */
 81	ret = of_parse_phandle_with_args(node, DAI, CELL, 0, &args);
 82	if (ret)
 83		goto end;
 84
 85	/*
 86	 * Try to find from DAI args
 87	 */
 88	dai = snd_soc_get_dai_via_args(&args);
 89	if (dai) {
 90		ret = -ENOMEM;
 91		dlc->dai_name = snd_soc_dai_name_get(dai);
 92		dlc->dai_args = snd_soc_copy_dai_args(dev, &args);
 93		if (!dlc->dai_args)
 94			goto end;
 95
 96		goto parse_dai_end;
 97	}
 98
 99	/*
100	 * FIXME
101	 *
102	 * Here, dlc->dai_name is pointer to CPU/Codec DAI name.
103	 * If user unbinded CPU or Codec driver, but not for Sound Card,
104	 * dlc->dai_name is keeping unbinded CPU or Codec
105	 * driver's pointer.
106	 *
107	 * If user re-bind CPU or Codec driver again, ALSA SoC will try
108	 * to rebind Card via snd_soc_try_rebind_card(), but because of
109	 * above reason, it might can't bind Sound Card.
110	 * Because Sound Card is pointing to released dai_name pointer.
111	 *
112	 * To avoid this rebind Card issue,
113	 * 1) It needs to alloc memory to keep dai_name eventhough
114	 *    CPU or Codec driver was unbinded, or
115	 * 2) user need to rebind Sound Card everytime
116	 *    if he unbinded CPU or Codec.
117	 */
118	ret = snd_soc_get_dlc(&args, dlc);
119	if (ret < 0)
120		goto end;
121
122parse_dai_end:
123	if (is_single_link)
124		*is_single_link = !args.args_count;
125	ret = 0;
126end:
127	return simple_ret(priv, ret);
128}
129
130static void simple_parse_convert(struct device *dev,
131				 struct device_node *np,
132				 struct simple_util_data *adata)
133{
134	struct device_node *top = dev->of_node;
135	struct device_node *node __free(device_node) = of_get_parent(np);
136
137	simple_util_parse_convert(top,  PREFIX, adata);
138	simple_util_parse_convert(node, PREFIX, adata);
139	simple_util_parse_convert(node, NULL,   adata);
140	simple_util_parse_convert(np,   NULL,   adata);
141}
142
143static int simple_parse_node(struct simple_util_priv *priv,
144			     struct device_node *np,
145			     struct link_info *li,
146			     char *prefix,
147			     int *cpu)
148{
149	struct device *dev = simple_priv_to_dev(priv);
150	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
151	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
152	struct snd_soc_dai_link_component *dlc;
153	struct simple_util_dai *dai;
154	int ret;
155
156	if (cpu) {
157		dlc = snd_soc_link_to_cpu(dai_link, 0);
158		dai = simple_props_to_dai_cpu(dai_props, 0);
159	} else {
160		dlc = snd_soc_link_to_codec(dai_link, 0);
161		dai = simple_props_to_dai_codec(dai_props, 0);
162	}
163
164	ret = simple_parse_dai(priv, np, dlc, cpu);
165	if (ret)
166		goto end;
167
168	ret = simple_util_parse_clk(dev, np, dai, dlc);
169	if (ret)
170		goto end;
171
172	ret = simple_util_parse_tdm(np, dai);
173end:
174	return simple_ret(priv, ret);
175}
176
177static int simple_link_init(struct simple_util_priv *priv,
178			    struct device_node *cpu,
179			    struct device_node *codec,
180			    struct link_info *li,
181			    char *prefix, char *name)
182{
183	struct device *dev = simple_priv_to_dev(priv);
184	struct device_node *top = dev->of_node;
185	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
186	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
187	struct device_node *node __free(device_node) = of_get_parent(cpu);
188	enum snd_soc_trigger_order trigger_start = SND_SOC_TRIGGER_ORDER_DEFAULT;
189	enum snd_soc_trigger_order trigger_stop  = SND_SOC_TRIGGER_ORDER_DEFAULT;
190	bool playback_only = 0, capture_only = 0;
191	int ret;
192
193	ret = simple_util_parse_daifmt(dev, node, codec,
194				       prefix, &dai_link->dai_fmt);
195	if (ret < 0)
196		goto end;
197
198	graph_util_parse_link_direction(top,	&playback_only, &capture_only);
199	graph_util_parse_link_direction(node,	&playback_only, &capture_only);
200	graph_util_parse_link_direction(cpu,	&playback_only, &capture_only);
201	graph_util_parse_link_direction(codec,	&playback_only, &capture_only);
202
203	of_property_read_u32(top,		"mclk-fs", &dai_props->mclk_fs);
204	of_property_read_u32(top,	PREFIX	"mclk-fs", &dai_props->mclk_fs);
205	of_property_read_u32(node,		"mclk-fs", &dai_props->mclk_fs);
206	of_property_read_u32(node,	PREFIX	"mclk-fs", &dai_props->mclk_fs);
207	of_property_read_u32(cpu,		"mclk-fs", &dai_props->mclk_fs);
208	of_property_read_u32(cpu,	PREFIX	"mclk-fs", &dai_props->mclk_fs);
209	of_property_read_u32(codec,		"mclk-fs", &dai_props->mclk_fs);
210	of_property_read_u32(codec,	PREFIX	"mclk-fs", &dai_props->mclk_fs);
211
212	graph_util_parse_trigger_order(priv, top,	&trigger_start, &trigger_stop);
213	graph_util_parse_trigger_order(priv, node,	&trigger_start, &trigger_stop);
214	graph_util_parse_trigger_order(priv, cpu,	&trigger_start, &trigger_stop);
215	graph_util_parse_trigger_order(priv, codec,	&trigger_start, &trigger_stop);
216
217	dai_link->playback_only		= playback_only;
218	dai_link->capture_only		= capture_only;
219
220	dai_link->trigger_start		= trigger_start;
221	dai_link->trigger_stop		= trigger_stop;
222
223	dai_link->init			= simple_util_dai_init;
224	dai_link->ops			= &simple_ops;
225
226	ret = simple_util_set_dailink_name(priv, dai_link, name);
227end:
228	return simple_ret(priv, ret);
229}
230
231static int simple_dai_link_of_dpcm(struct simple_util_priv *priv,
232				   struct device_node *np,
233				   struct device_node *codec,
234				   struct link_info *li,
235				   bool is_top)
236{
237	struct device *dev = simple_priv_to_dev(priv);
238	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
239	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
240	struct device_node *top = dev->of_node;
241	struct device_node *node __free(device_node) = of_get_parent(np);
242	char *prefix = "";
243	char dai_name[64];
244	int ret;
245
246	dev_dbg(dev, "link_of DPCM (%pOF)\n", np);
247
248	/* For single DAI link & old style of DT node */
249	if (is_top)
250		prefix = PREFIX;
251
252	if (li->cpu) {
253		struct snd_soc_dai_link_component *cpus = snd_soc_link_to_cpu(dai_link, 0);
254		struct snd_soc_dai_link_component *platforms = snd_soc_link_to_platform(dai_link, 0);
255		int is_single_links = 0;
256
257		/* Codec is dummy */
258
259		/* FE settings */
260		dai_link->dynamic		= 1;
261		dai_link->dpcm_merged_format	= 1;
262
263		ret = simple_parse_node(priv, np, li, prefix, &is_single_links);
264		if (ret < 0)
265			goto out_put_node;
266
267		snprintf(dai_name, sizeof(dai_name), "fe.%s", cpus->dai_name);
268
269		simple_util_canonicalize_cpu(cpus, is_single_links);
270		simple_util_canonicalize_platform(platforms, cpus);
271	} else {
272		struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0);
273		struct snd_soc_codec_conf *cconf;
274
275		/* CPU is dummy */
276
277		/* BE settings */
278		dai_link->no_pcm		= 1;
279		dai_link->be_hw_params_fixup	= simple_util_be_hw_params_fixup;
280
281		cconf	= simple_props_to_codec_conf(dai_props, 0);
282
283		ret = simple_parse_node(priv, np, li, prefix, NULL);
284		if (ret < 0)
285			goto out_put_node;
286
287		snprintf(dai_name, sizeof(dai_name), "be.%s", codecs->dai_name);
288
289		/* check "prefix" from top node */
290		snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
291					      PREFIX "prefix");
292		snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,
293					     "prefix");
294		snd_soc_of_parse_node_prefix(np, cconf, codecs->of_node,
295					     "prefix");
296	}
297
298	simple_parse_convert(dev, np, &dai_props->adata);
299
300	ret = simple_link_init(priv, np, codec, li, prefix, dai_name);
301
302out_put_node:
303	li->link++;
304
305	return simple_ret(priv, ret);
306}
307
308static int simple_dai_link_of(struct simple_util_priv *priv,
309			      struct device_node *np,
310			      struct device_node *codec,
311			      struct link_info *li,
312			      bool is_top)
313{
314	struct device *dev = simple_priv_to_dev(priv);
315	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
316	struct snd_soc_dai_link_component *cpus = snd_soc_link_to_cpu(dai_link, 0);
317	struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0);
318	struct snd_soc_dai_link_component *platforms = snd_soc_link_to_platform(dai_link, 0);
319	struct device_node *cpu = NULL;
320	char dai_name[64];
321	char prop[128];
322	char *prefix = "";
323	int ret, single_cpu = 0;
324
325	cpu  = np;
326	struct device_node *node __free(device_node) = of_get_parent(np);
327
328	dev_dbg(dev, "link_of (%pOF)\n", node);
329
330	/* For single DAI link & old style of DT node */
331	if (is_top)
332		prefix = PREFIX;
333
334	snprintf(prop, sizeof(prop), "%splat", prefix);
335	struct device_node *plat __free(device_node)  = of_get_child_by_name(node, prop);
336
337	ret = simple_parse_node(priv, cpu, li, prefix, &single_cpu);
338	if (ret < 0)
339		goto dai_link_of_err;
340
341	ret = simple_parse_node(priv, codec, li, prefix, NULL);
342	if (ret < 0)
343		goto dai_link_of_err;
344
345	ret = simple_parse_platform(priv, plat, platforms);
346	if (ret < 0)
347		goto dai_link_of_err;
348
349	snprintf(dai_name, sizeof(dai_name),
350		 "%s-%s", cpus->dai_name, codecs->dai_name);
351
352	simple_util_canonicalize_cpu(cpus, single_cpu);
353	simple_util_canonicalize_platform(platforms, cpus);
354
355	ret = simple_link_init(priv, cpu, codec, li, prefix, dai_name);
356
357dai_link_of_err:
358	li->link++;
359
360	return simple_ret(priv, ret);
361}
362
363static int __simple_for_each_link(struct simple_util_priv *priv,
364			struct link_info *li,
365			int (*func_noml)(struct simple_util_priv *priv,
366					 struct device_node *np,
367					 struct device_node *codec,
368					 struct link_info *li, bool is_top),
369			int (*func_dpcm)(struct simple_util_priv *priv,
370					 struct device_node *np,
371					 struct device_node *codec,
372					 struct link_info *li, bool is_top))
373{
374	struct device *dev = simple_priv_to_dev(priv);
375	struct device_node *top = dev->of_node;
376	struct device_node *node;
377	uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
378	bool is_top = 0;
379	int ret = 0;
380
381	/* Check if it has dai-link */
382	node = of_get_child_by_name(top, PREFIX "dai-link");
383	if (!node) {
384		node = of_node_get(top);
385		is_top = 1;
386	}
387
388	struct device_node *add_devs __free(device_node) = of_get_child_by_name(top, PREFIX "additional-devs");
389
390	/* loop for all dai-link */
391	do {
392		struct simple_util_data adata;
393		int num = of_get_child_count(node);
394
395		/* Skip additional-devs node */
396		if (node == add_devs) {
397			node = of_get_next_child(top, node);
398			continue;
399		}
400
401		/* get codec */
402		struct device_node *codec __free(device_node) =
403			of_get_child_by_name(node, is_top ? PREFIX "codec" : "codec");
404		if (!codec) {
405			ret = -ENODEV;
406			goto error;
407		}
408		/* get platform */
409		struct device_node *plat __free(device_node) =
410			of_get_child_by_name(node, is_top ? PREFIX "plat" : "plat");
411
412		/* get convert-xxx property */
413		memset(&adata, 0, sizeof(adata));
414		for_each_child_of_node_scoped(node, np) {
415			if (np == add_devs)
416				continue;
417			simple_parse_convert(dev, np, &adata);
418		}
419
420		/* loop for all CPU/Codec node */
421		for_each_child_of_node_scoped(node, np) {
422			if (plat == np || add_devs == np)
423				continue;
424			/*
425			 * It is DPCM
426			 * if it has many CPUs,
427			 * or has convert-xxx property
428			 */
429			if (dpcm_selectable &&
430			    (num > 2 || simple_util_is_convert_required(&adata))) {
431				/*
432				 * np
433				 *	 |1(CPU)|0(Codec)  li->cpu
434				 * CPU	 |Pass  |return
435				 * Codec |return|Pass
436				 */
437				if (li->cpu != (np == codec))
438					ret = func_dpcm(priv, np, codec, li, is_top);
439			/* else normal sound */
440			} else {
441				/*
442				 * np
443				 *	 |1(CPU)|0(Codec)  li->cpu
444				 * CPU	 |Pass  |return
445				 * Codec |return|return
446				 */
447				if (li->cpu && (np != codec))
448					ret = func_noml(priv, np, codec, li, is_top);
449			}
450
451			if (ret < 0)
452				goto error;
453		}
454
455		node = of_get_next_child(top, node);
456	} while (!is_top && node);
457
458error:
459	of_node_put(node);
460
461	return simple_ret(priv, ret);
462}
463
464static int simple_for_each_link(struct simple_util_priv *priv,
465				struct link_info *li,
466				int (*func_noml)(struct simple_util_priv *priv,
467						 struct device_node *np,
468						 struct device_node *codec,
469						 struct link_info *li, bool is_top),
470				int (*func_dpcm)(struct simple_util_priv *priv,
471						 struct device_node *np,
472						 struct device_node *codec,
473						 struct link_info *li, bool is_top))
474{
475	int ret;
476	/*
477	 * Detect all CPU first, and Detect all Codec 2nd.
478	 *
479	 * In Normal sound case, all DAIs are detected
480	 * as "CPU-Codec".
481	 *
482	 * In DPCM sound case,
483	 * all CPUs   are detected as "CPU-dummy", and
484	 * all Codecs are detected as "dummy-Codec".
485	 * To avoid random sub-device numbering,
486	 * detect "dummy-Codec" in last;
487	 */
488	for (li->cpu = 1; li->cpu >= 0; li->cpu--) {
489		ret = __simple_for_each_link(priv, li, func_noml, func_dpcm);
490		if (ret < 0)
491			break;
492	}
493
494	return simple_ret(priv, ret);
495}
496
497static void simple_depopulate_aux(void *data)
498{
499	struct simple_util_priv *priv = data;
500
501	of_platform_depopulate(simple_priv_to_dev(priv));
502}
503
504static int simple_populate_aux(struct simple_util_priv *priv)
505{
506	struct device *dev = simple_priv_to_dev(priv);
507	struct device_node *node __free(device_node) = of_get_child_by_name(dev->of_node, PREFIX "additional-devs");
508	int ret;
509
510	if (!node)
511		return 0;
512
513	ret = of_platform_populate(node, NULL, NULL, dev);
514	if (ret)
515		goto end;
516
517	ret = devm_add_action_or_reset(dev, simple_depopulate_aux, priv);
518end:
519	return simple_ret(priv, ret);
520}
521
522static int simple_parse_of(struct simple_util_priv *priv, struct link_info *li)
523{
524	struct snd_soc_card *card = simple_priv_to_card(priv);
525	int ret;
526
527	ret = simple_util_parse_widgets(card, PREFIX);
528	if (ret < 0)
529		goto end;
530
531	ret = simple_util_parse_routing(card, PREFIX);
532	if (ret < 0)
533		goto end;
534
535	ret = simple_util_parse_pin_switches(card, PREFIX);
536	if (ret < 0)
537		goto end;
538
539	/* Single/Muti DAI link(s) & New style of DT node */
540	memset(li, 0, sizeof(*li));
541	ret = simple_for_each_link(priv, li,
542				   simple_dai_link_of,
543				   simple_dai_link_of_dpcm);
544	if (ret < 0)
545		goto end;
546
547	ret = simple_util_parse_card_name(priv, PREFIX);
548	if (ret < 0)
549		goto end;
550
551	ret = simple_populate_aux(priv);
552	if (ret < 0)
553		goto end;
554
555	ret = snd_soc_of_parse_aux_devs(card, PREFIX "aux-devs");
556end:
557	return simple_ret(priv, ret);
558}
559
560static int simple_count_noml(struct simple_util_priv *priv,
561			     struct device_node *np,
562			     struct device_node *codec,
563			     struct link_info *li, bool is_top)
564{
565	int ret = -EINVAL;
566
567	if (li->link >= SNDRV_MAX_LINKS)
568		goto end;
569
570	/*
571	 * DON'T REMOVE platforms
572	 *
573	 * Some CPU might be using soc-generic-dmaengine-pcm. This means CPU and Platform
574	 * are different Component, but are sharing same component->dev.
575	 * Simple Card had been supported it without special Platform selection.
576	 * We need platforms here.
577	 *
578	 * In case of no Platform, it will be Platform == CPU, but Platform will be
579	 * ignored by snd_soc_rtd_add_component().
580	 *
581	 * see
582	 *	simple-card-utils.c :: simple_util_canonicalize_platform()
583	 */
584	li->num[li->link].cpus		= 1;
585	li->num[li->link].platforms	= 1;
586
587	li->num[li->link].codecs	= 1;
588
589	li->link += 1;
590	ret = 0;
591end:
592	return simple_ret(priv, ret);
593}
594
595static int simple_count_dpcm(struct simple_util_priv *priv,
596			     struct device_node *np,
597			     struct device_node *codec,
598			     struct link_info *li, bool is_top)
599{
600	int ret = -EINVAL;
601
602	if (li->link >= SNDRV_MAX_LINKS)
603		goto end;
604
605	if (li->cpu) {
606		/*
607		 * DON'T REMOVE platforms
608		 * see
609		 *	simple_count_noml()
610		 */
611		li->num[li->link].cpus		= 1;
612		li->num[li->link].platforms	= 1;
613
614		li->link++; /* CPU-dummy */
615	} else {
616		li->num[li->link].codecs	= 1;
617
618		li->link++; /* dummy-Codec */
619	}
620	ret = 0;
621end:
622	return simple_ret(priv, ret);
623}
624
625static int simple_get_dais_count(struct simple_util_priv *priv,
626				 struct link_info *li)
627{
628	struct device *dev = simple_priv_to_dev(priv);
629	struct device_node *top = dev->of_node;
630
631	/*
632	 * link_num :	number of links.
633	 *		CPU-Codec / CPU-dummy / dummy-Codec
634	 * dais_num :	number of DAIs
635	 * ccnf_num :	number of codec_conf
636	 *		same number for "dummy-Codec"
637	 *
638	 * ex1)
639	 * CPU0 --- Codec0	link : 5
640	 * CPU1 --- Codec1	dais : 7
641	 * CPU2 -/		ccnf : 1
642	 * CPU3 --- Codec2
643	 *
644	 *	=> 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec
645	 *	=> 7 DAIs  = 4xCPU + 3xCodec
646	 *	=> 1 ccnf  = 1xdummy-Codec
647	 *
648	 * ex2)
649	 * CPU0 --- Codec0	link : 5
650	 * CPU1 --- Codec1	dais : 6
651	 * CPU2 -/		ccnf : 1
652	 * CPU3 -/
653	 *
654	 *	=> 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec
655	 *	=> 6 DAIs  = 4xCPU + 2xCodec
656	 *	=> 1 ccnf  = 1xdummy-Codec
657	 *
658	 * ex3)
659	 * CPU0 --- Codec0	link : 6
660	 * CPU1 -/		dais : 6
661	 * CPU2 --- Codec1	ccnf : 2
662	 * CPU3 -/
663	 *
664	 *	=> 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec
665	 *	=> 6 DAIs  = 4xCPU + 2xCodec
666	 *	=> 2 ccnf  = 2xdummy-Codec
667	 *
668	 * ex4)
669	 * CPU0 --- Codec0 (convert-rate)	link : 3
670	 * CPU1 --- Codec1			dais : 4
671	 *					ccnf : 1
672	 *
673	 *	=> 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec
674	 *	=> 4 DAIs  = 2xCPU + 2xCodec
675	 *	=> 1 ccnf  = 1xdummy-Codec
676	 */
677	if (!top) {
678		li->num[0].cpus		= 1;
679		li->num[0].codecs	= 1;
680		li->num[0].platforms	= 1;
681
682		li->link = 1;
683		return 0;
684	}
685
686	return simple_for_each_link(priv, li,
687				    simple_count_noml,
688				    simple_count_dpcm);
689}
690
691static int simple_soc_probe(struct snd_soc_card *card)
692{
693	struct simple_util_priv *priv = snd_soc_card_get_drvdata(card);
694	int ret;
695
696	ret = simple_util_init_hp(card, &priv->hp_jack, PREFIX);
697	if (ret < 0)
698		goto end;
699
700	ret = simple_util_init_mic(card, &priv->mic_jack, PREFIX);
701	if (ret < 0)
702		goto end;
703
704	ret = simple_util_init_aux_jacks(priv, PREFIX);
705end:
706	return simple_ret(priv, ret);
707}
708
709static int simple_probe(struct platform_device *pdev)
710{
711	struct simple_util_priv *priv;
712	struct device *dev = &pdev->dev;
713	struct device_node *np = dev->of_node;
714	struct snd_soc_card *card;
715	int ret;
716
717	/* Allocate the private data and the DAI link array */
718	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
719	if (!priv)
720		return -ENOMEM;
721
722	card = simple_priv_to_card(priv);
723	card->owner		= THIS_MODULE;
724	card->dev		= dev;
725	card->probe		= simple_soc_probe;
726	card->driver_name       = "simple-card";
727
728	ret = -ENOMEM;
729	struct link_info *li __free(kfree) = kzalloc(sizeof(*li), GFP_KERNEL);
730	if (!li)
731		goto end;
732
733	ret = simple_get_dais_count(priv, li);
734	if (ret < 0)
735		goto end;
736
737	ret = -EINVAL;
738	if (!li->link)
739		goto end;
740
741	ret = simple_util_init_priv(priv, li);
742	if (ret < 0)
743		goto end;
744
745	if (np && of_device_is_available(np)) {
746
747		ret = simple_parse_of(priv, li);
748		if (ret < 0) {
749			dev_err_probe(dev, ret, "parse error\n");
750			goto err;
751		}
752
753	} else {
754		struct simple_util_info *cinfo;
755		struct snd_soc_dai_link_component *cpus;
756		struct snd_soc_dai_link_component *codecs;
757		struct snd_soc_dai_link_component *platform;
758		struct snd_soc_dai_link *dai_link = priv->dai_link;
759		struct simple_dai_props *dai_props = priv->dai_props;
760
761		ret = -EINVAL;
762
763		cinfo = dev->platform_data;
764		if (!cinfo) {
765			dev_err(dev, "no info for asoc-simple-card\n");
766			goto err;
767		}
768
769		if (!cinfo->name ||
770		    !cinfo->codec_dai.name ||
771		    !cinfo->codec ||
772		    !cinfo->platform ||
773		    !cinfo->cpu_dai.name) {
774			dev_err(dev, "insufficient simple_util_info settings\n");
775			goto err;
776		}
777
778		cpus			= dai_link->cpus;
779		cpus->dai_name		= cinfo->cpu_dai.name;
780
781		codecs			= dai_link->codecs;
782		codecs->name		= cinfo->codec;
783		codecs->dai_name	= cinfo->codec_dai.name;
784
785		platform		= dai_link->platforms;
786		platform->name		= cinfo->platform;
787
788		card->name		= (cinfo->card) ? cinfo->card : cinfo->name;
789		dai_link->name		= cinfo->name;
790		dai_link->stream_name	= cinfo->name;
791		dai_link->dai_fmt	= cinfo->daifmt;
792		dai_link->init		= simple_util_dai_init;
793		memcpy(dai_props->cpu_dai, &cinfo->cpu_dai,
794					sizeof(*dai_props->cpu_dai));
795		memcpy(dai_props->codec_dai, &cinfo->codec_dai,
796					sizeof(*dai_props->codec_dai));
797	}
798
799	snd_soc_card_set_drvdata(card, priv);
800
801	simple_util_debug_info(priv);
802
803	ret = devm_snd_soc_register_card(dev, card);
804	if (ret < 0)
805		goto err;
806
807	return 0;
808err:
809	simple_util_clean_reference(card);
810end:
811	return dev_err_probe(dev, ret, "parse error\n");
812}
813
814static const struct of_device_id simple_of_match[] = {
815	{ .compatible = "simple-audio-card", },
816	{ .compatible = "simple-scu-audio-card",
817	  .data = (void *)DPCM_SELECTABLE },
818	{},
819};
820MODULE_DEVICE_TABLE(of, simple_of_match);
821
822static struct platform_driver simple_card = {
823	.driver = {
824		.name = "asoc-simple-card",
825		.pm = &snd_soc_pm_ops,
826		.of_match_table = simple_of_match,
827	},
828	.probe = simple_probe,
829	.remove = simple_util_remove,
830};
831
832module_platform_driver(simple_card);
833
834MODULE_ALIAS("platform:asoc-simple-card");
835MODULE_LICENSE("GPL v2");
836MODULE_DESCRIPTION("ASoC Simple Sound Card");
837MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");