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Merge branches 'pm-epoll', 'pnp' and 'powercap'
[deliverable/linux.git] / sound / soc / soc-core.c
CommitLineData
db2a4165
FM		 1/*
2 * soc-core.c -- ALSA SoC Audio Layer
3 *
4 * Copyright 2005 Wolfson Microelectronics PLC.
0664d888 5 * Copyright 2005 Openedhand Ltd.
f0fba2ad
LG		 6 * Copyright (C) 2010 Slimlogic Ltd.
7 * Copyright (C) 2010 Texas Instruments Inc.
0664d888 8 *
d331124d 9 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
0664d888
LG		 10 * with code, comments and ideas from :-
11 * Richard Purdie <richard@openedhand.com>
db2a4165
FM		 12 *
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License as published by the
15 * Free Software Foundation; either version 2 of the License, or (at your
16 * option) any later version.
17 *
db2a4165
FM		 18 * TODO:
19 * o Add hw rules to enforce rates, etc.
20 * o More testing with other codecs/machines.
21 * o Add more codecs and platforms to ensure good API coverage.
22 * o Support TDM on PCM and I2S
23 */
24
25#include <linux/module.h>
26#include <linux/moduleparam.h>
27#include <linux/init.h>
28#include <linux/delay.h>
29#include <linux/pm.h>
30#include <linux/bitops.h>
12ef193d 31#include <linux/debugfs.h>
db2a4165 32#include <linux/platform_device.h>
741a509f 33#include <linux/pinctrl/consumer.h>
f0e8ed85 34#include <linux/ctype.h>
5a0e3ad6 35#include <linux/slab.h>
bec4fa05 36#include <linux/of.h>
741a509f
MP		 37#include <linux/gpio.h>
38#include <linux/of_gpio.h>
474828a4 39#include <sound/ac97_codec.h>
db2a4165 40#include <sound/core.h>
3028eb8c 41#include <sound/jack.h>
db2a4165
FM		 42#include <sound/pcm.h>
43#include <sound/pcm_params.h>
44#include <sound/soc.h>
01d7584c 45#include <sound/soc-dpcm.h>
db2a4165
FM		 46#include <sound/initval.h>
47
a8b1d34f
MB		 48#define CREATE_TRACE_POINTS
49#include <trace/events/asoc.h>
50
f0fba2ad
LG		 51#define NAME_SIZE 32
52
384c89e2 53#ifdef CONFIG_DEBUG_FS
8a9dab1a
MB		 54struct dentry *snd_soc_debugfs_root;
55EXPORT_SYMBOL_GPL(snd_soc_debugfs_root);
384c89e2
MB		 56#endif
57
c5af3a2e 58static DEFINE_MUTEX(client_mutex);
9115171a 59static LIST_HEAD(dai_list);
12a48a8c 60static LIST_HEAD(platform_list);
0d0cf00a 61static LIST_HEAD(codec_list);
030e79f6 62static LIST_HEAD(component_list);
c5af3a2e 63
db2a4165
FM		 64/*
65 * This is a timeout to do a DAPM powerdown after a stream is closed().
66 * It can be used to eliminate pops between different playback streams, e.g.
67 * between two audio tracks.
68 */
69static int pmdown_time = 5000;
70module_param(pmdown_time, int, 0);
71MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)");
72
741a509f
MP		 73struct snd_ac97_reset_cfg {
74 struct pinctrl *pctl;
75 struct pinctrl_state *pstate_reset;
76 struct pinctrl_state *pstate_warm_reset;
77 struct pinctrl_state *pstate_run;
78 int gpio_sdata;
79 int gpio_sync;
80 int gpio_reset;
81};
82
2bc9a81e
DP		 83/* returns the minimum number of bytes needed to represent
84 * a particular given value */
85static int min_bytes_needed(unsigned long val)
86{
87 int c = 0;
88 int i;
89
90 for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c)
91 if (val & (1UL << i))
92 break;
93 c = (sizeof val * 8) - c;
94 if (!c || (c % 8))
95 c = (c + 8) / 8;
96 else
97 c /= 8;
98 return c;
99}
100
13fd179f
DP		 101/* fill buf which is 'len' bytes with a formatted
102 * string of the form 'reg: value\n' */
103static int format_register_str(struct snd_soc_codec *codec,
104 unsigned int reg, char *buf, size_t len)
105{
00b317a4
SW		 106 int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
107 int regsize = codec->driver->reg_word_size * 2;
13fd179f
DP		 108 int ret;
109 char tmpbuf[len + 1];
110 char regbuf[regsize + 1];
111
112 /* since tmpbuf is allocated on the stack, warn the callers if they
113 * try to abuse this function */
114 WARN_ON(len > 63);
115
116 /* +2 for ': ' and + 1 for '\n' */
117 if (wordsize + regsize + 2 + 1 != len)
118 return -EINVAL;
119
25032c11 120 ret = snd_soc_read(codec, reg);
13fd179f
DP		 121 if (ret < 0) {
122 memset(regbuf, 'X', regsize);
123 regbuf[regsize] = '\0';
124 } else {
125 snprintf(regbuf, regsize + 1, "%.*x", regsize, ret);
126 }
127
128 /* prepare the buffer */
129 snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf);
130 /* copy it back to the caller without the '\0' */
131 memcpy(buf, tmpbuf, len);
132
133 return 0;
134}
135
2624d5fa 136/* codec register dump */
13fd179f
DP		 137static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf,
138 size_t count, loff_t pos)
2624d5fa 139{
13fd179f 140 int i, step = 1;
2bc9a81e 141 int wordsize, regsize;
13fd179f
DP		 142 int len;
143 size_t total = 0;
144 loff_t p = 0;
2bc9a81e 145
00b317a4
SW		 146 wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
147 regsize = codec->driver->reg_word_size * 2;
2624d5fa 148
13fd179f
DP		 149 len = wordsize + regsize + 2 + 1;
150
f0fba2ad 151 if (!codec->driver->reg_cache_size)
2624d5fa
MB		 152 return 0;
153
f0fba2ad
LG		 154 if (codec->driver->reg_cache_step)
155 step = codec->driver->reg_cache_step;
2624d5fa 156
f0fba2ad 157 for (i = 0; i < codec->driver->reg_cache_size; i += step) {
b92d150b 158 if (!snd_soc_codec_readable_register(codec, i))
2624d5fa 159 continue;
f0fba2ad
LG		 160 if (codec->driver->display_register) {
161 count += codec->driver->display_register(codec, buf + count,
2624d5fa 162 PAGE_SIZE - count, i);
5164d74d 163 } else {
13fd179f
DP		 164 /* only support larger than PAGE_SIZE bytes debugfs
165 * entries for the default case */
166 if (p >= pos) {
167 if (total + len >= count - 1)
168 break;
169 format_register_str(codec, i, buf + total, len);
170 total += len;
171 }
172 p += len;
5164d74d 173 }
2624d5fa
MB		 174 }
175
13fd179f 176 total = min(total, count - 1);
2624d5fa 177
13fd179f 178 return total;
2624d5fa 179}
13fd179f 180
2624d5fa
MB		 181static ssize_t codec_reg_show(struct device *dev,
182 struct device_attribute *attr, char *buf)
183{
36ae1a96 184 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
f0fba2ad 185
13fd179f 186 return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0);
2624d5fa
MB		 187}
188
189static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
190
dbe21408
MB		 191static ssize_t pmdown_time_show(struct device *dev,
192 struct device_attribute *attr, char *buf)
193{
36ae1a96 194 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
dbe21408 195
f0fba2ad 196 return sprintf(buf, "%ld\n", rtd->pmdown_time);
dbe21408
MB		 197}
198
199static ssize_t pmdown_time_set(struct device *dev,
200 struct device_attribute *attr,
201 const char *buf, size_t count)
202{
36ae1a96 203 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
c593b520 204 int ret;
dbe21408 205
b785a492 206 ret = kstrtol(buf, 10, &rtd->pmdown_time);
c593b520
MB		 207 if (ret)
208 return ret;
dbe21408
MB		 209
210 return count;
211}
212
213static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set);
214
2624d5fa 215#ifdef CONFIG_DEBUG_FS
2624d5fa 216static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
13fd179f 217 size_t count, loff_t *ppos)
2624d5fa
MB		 218{
219 ssize_t ret;
220 struct snd_soc_codec *codec = file->private_data;
13fd179f
DP		 221 char *buf;
222
223 if (*ppos < 0 || !count)
224 return -EINVAL;
225
226 buf = kmalloc(count, GFP_KERNEL);
2624d5fa
MB		 227 if (!buf)
228 return -ENOMEM;
13fd179f
DP		 229
230 ret = soc_codec_reg_show(codec, buf, count, *ppos);
231 if (ret >= 0) {
232 if (copy_to_user(user_buf, buf, ret)) {
233 kfree(buf);
234 return -EFAULT;
235 }
236 *ppos += ret;
237 }
238
2624d5fa
MB		 239 kfree(buf);
240 return ret;
241}
242
243static ssize_t codec_reg_write_file(struct file *file,
244 const char __user *user_buf, size_t count, loff_t *ppos)
245{
246 char buf[32];
34e268d8 247 size_t buf_size;
2624d5fa
MB		 248 char *start = buf;
249 unsigned long reg, value;
2624d5fa 250 struct snd_soc_codec *codec = file->private_data;
b785a492 251 int ret;
2624d5fa
MB		 252
253 buf_size = min(count, (sizeof(buf)-1));
254 if (copy_from_user(buf, user_buf, buf_size))
255 return -EFAULT;
256 buf[buf_size] = 0;
2624d5fa
MB		 257
258 while (*start == ' ')
259 start++;
260 reg = simple_strtoul(start, &start, 16);
2624d5fa
MB		 261 while (*start == ' ')
262 start++;
b785a492
JH		 263 ret = kstrtoul(start, 16, &value);
264 if (ret)
265 return ret;
0d51a9cb
MB		 266
267 /* Userspace has been fiddling around behind the kernel's back */
373d4d09 268 add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE);
0d51a9cb 269
e4f078d8 270 snd_soc_write(codec, reg, value);
2624d5fa
MB		 271 return buf_size;
272}
273
274static const struct file_operations codec_reg_fops = {
234e3405 275 .open = simple_open,
2624d5fa
MB		 276 .read = codec_reg_read_file,
277 .write = codec_reg_write_file,
6038f373 278 .llseek = default_llseek,
2624d5fa
MB		 279};
280
281static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
282{
d6ce4cf3
JN		 283 struct dentry *debugfs_card_root = codec->card->debugfs_card_root;
284
285 codec->debugfs_codec_root = debugfs_create_dir(codec->name,
286 debugfs_card_root);
2624d5fa 287 if (!codec->debugfs_codec_root) {
10e8aa9a
MM		 288 dev_warn(codec->dev,
289 "ASoC: Failed to create codec debugfs directory\n");
2624d5fa
MB		 290 return;
291 }
292
aaee8ef1
MB		 293 debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root,
294 &codec->cache_sync);
295 debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root,
296 &codec->cache_only);
297
2624d5fa
MB		 298 codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
299 codec->debugfs_codec_root,
300 codec, &codec_reg_fops);
301 if (!codec->debugfs_reg)
10e8aa9a
MM		 302 dev_warn(codec->dev,
303 "ASoC: Failed to create codec register debugfs file\n");
2624d5fa 304
8eecaf62 305 snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root);
2624d5fa
MB		 306}
307
308static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
309{
310 debugfs_remove_recursive(codec->debugfs_codec_root);
311}
312
731f1ab2
SG		 313static void soc_init_platform_debugfs(struct snd_soc_platform *platform)
314{
315 struct dentry *debugfs_card_root = platform->card->debugfs_card_root;
316
317 platform->debugfs_platform_root = debugfs_create_dir(platform->name,
318 debugfs_card_root);
319 if (!platform->debugfs_platform_root) {
320 dev_warn(platform->dev,
f110bfc7 321 "ASoC: Failed to create platform debugfs directory\n");
731f1ab2
SG		 322 return;
323 }
324
325 snd_soc_dapm_debugfs_init(&platform->dapm,
326 platform->debugfs_platform_root);
327}
328
329static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
330{
331 debugfs_remove_recursive(platform->debugfs_platform_root);
332}
333
c3c5a19a
MB		 334static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
335 size_t count, loff_t *ppos)
336{
337 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 338 ssize_t len, ret = 0;
c3c5a19a
MB		 339 struct snd_soc_codec *codec;
340
341 if (!buf)
342 return -ENOMEM;
343
2b194f9d
MB		 344 list_for_each_entry(codec, &codec_list, list) {
345 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
346 codec->name);
347 if (len >= 0)
348 ret += len;
349 if (ret > PAGE_SIZE) {
350 ret = PAGE_SIZE;
351 break;
352 }
353 }
c3c5a19a
MB		 354
355 if (ret >= 0)
356 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
357
358 kfree(buf);
359
360 return ret;
361}
362
363static const struct file_operations codec_list_fops = {
364 .read = codec_list_read_file,
365 .llseek = default_llseek,/* read accesses f_pos */
366};
367
f3208780
MB		 368static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
369 size_t count, loff_t *ppos)
370{
371 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 372 ssize_t len, ret = 0;
f3208780
MB		 373 struct snd_soc_dai *dai;
374
375 if (!buf)
376 return -ENOMEM;
377
2b194f9d
MB		 378 list_for_each_entry(dai, &dai_list, list) {
379 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n", dai->name);
380 if (len >= 0)
381 ret += len;
382 if (ret > PAGE_SIZE) {
383 ret = PAGE_SIZE;
384 break;
385 }
386 }
f3208780 387
2b194f9d 388 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
f3208780
MB		 389
390 kfree(buf);
391
392 return ret;
393}
394
395static const struct file_operations dai_list_fops = {
396 .read = dai_list_read_file,
397 .llseek = default_llseek,/* read accesses f_pos */
398};
399
19c7ac27
MB		 400static ssize_t platform_list_read_file(struct file *file,
401 char __user *user_buf,
402 size_t count, loff_t *ppos)
403{
404 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 405 ssize_t len, ret = 0;
19c7ac27
MB		 406 struct snd_soc_platform *platform;
407
408 if (!buf)
409 return -ENOMEM;
410
2b194f9d
MB		 411 list_for_each_entry(platform, &platform_list, list) {
412 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
413 platform->name);
414 if (len >= 0)
415 ret += len;
416 if (ret > PAGE_SIZE) {
417 ret = PAGE_SIZE;
418 break;
419 }
420 }
19c7ac27 421
2b194f9d 422 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
19c7ac27
MB		 423
424 kfree(buf);
425
426 return ret;
427}
428
429static const struct file_operations platform_list_fops = {
430 .read = platform_list_read_file,
431 .llseek = default_llseek,/* read accesses f_pos */
432};
433
a6052154
JN		 434static void soc_init_card_debugfs(struct snd_soc_card *card)
435{
436 card->debugfs_card_root = debugfs_create_dir(card->name,
8a9dab1a 437 snd_soc_debugfs_root);
3a45b867 438 if (!card->debugfs_card_root) {
a6052154 439 dev_warn(card->dev,
7c08be84 440 "ASoC: Failed to create card debugfs directory\n");
3a45b867
JN		 441 return;
442 }
443
444 card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
445 card->debugfs_card_root,
446 &card->pop_time);
447 if (!card->debugfs_pop_time)
448 dev_warn(card->dev,
f110bfc7 449 "ASoC: Failed to create pop time debugfs file\n");
a6052154
JN		 450}
451
452static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
453{
454 debugfs_remove_recursive(card->debugfs_card_root);
455}
456
2624d5fa
MB		 457#else
458
459static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
460{
461}
462
463static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
464{
465}
b95fccbc 466
731f1ab2
SG		 467static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform)
468{
469}
470
471static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
472{
473}
474
b95fccbc
AL		 475static inline void soc_init_card_debugfs(struct snd_soc_card *card)
476{
477}
478
479static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card)
480{
481}
2624d5fa
MB		 482#endif
483
47c88fff
LG		 484struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
485 const char *dai_link, int stream)
486{
487 int i;
488
489 for (i = 0; i < card->num_links; i++) {
490 if (card->rtd[i].dai_link->no_pcm &&
491 !strcmp(card->rtd[i].dai_link->name, dai_link))
492 return card->rtd[i].pcm->streams[stream].substream;
493 }
f110bfc7 494 dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link);
47c88fff
LG		 495 return NULL;
496}
497EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream);
498
499struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
500 const char *dai_link)
501{
502 int i;
503
504 for (i = 0; i < card->num_links; i++) {
505 if (!strcmp(card->rtd[i].dai_link->name, dai_link))
506 return &card->rtd[i];
507 }
f110bfc7 508 dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link);
47c88fff
LG		 509 return NULL;
510}
511EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime);
512
db2a4165
FM		 513#ifdef CONFIG_SND_SOC_AC97_BUS
514/* unregister ac97 codec */
515static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
516{
517 if (codec->ac97->dev.bus)
518 device_unregister(&codec->ac97->dev);
519 return 0;
520}
521
522/* stop no dev release warning */
523static void soc_ac97_device_release(struct device *dev){}
524
525/* register ac97 codec to bus */
526static int soc_ac97_dev_register(struct snd_soc_codec *codec)
527{
528 int err;
529
530 codec->ac97->dev.bus = &ac97_bus_type;
4ac5c61f 531 codec->ac97->dev.parent = codec->card->dev;
db2a4165
FM		 532 codec->ac97->dev.release = soc_ac97_device_release;
533
bb072bf0 534 dev_set_name(&codec->ac97->dev, "%d-%d:%s",
f0fba2ad 535 codec->card->snd_card->number, 0, codec->name);
db2a4165
FM		 536 err = device_register(&codec->ac97->dev);
537 if (err < 0) {
f110bfc7 538 dev_err(codec->dev, "ASoC: Can't register ac97 bus\n");
db2a4165
FM		 539 codec->ac97->dev.bus = NULL;
540 return err;
541 }
542 return 0;
543}
544#endif
545
9d58a077
RF		 546static void codec2codec_close_delayed_work(struct work_struct *work)
547{
548 /* Currently nothing to do for c2c links
549 * Since c2c links are internal nodes in the DAPM graph and
550 * don't interface with the outside world or application layer
551 * we don't have to do any special handling on close.
552 */
553}
554
6f8ab4ac 555#ifdef CONFIG_PM_SLEEP
db2a4165 556/* powers down audio subsystem for suspend */
6f8ab4ac 557int snd_soc_suspend(struct device *dev)
db2a4165 558{
6f8ab4ac 559 struct snd_soc_card *card = dev_get_drvdata(dev);
2eea392d 560 struct snd_soc_codec *codec;
db2a4165
FM		 561 int i;
562
e3509ff0
DM		 563 /* If the initialization of this soc device failed, there is no codec
564 * associated with it. Just bail out in this case.
565 */
f0fba2ad 566 if (list_empty(&card->codec_dev_list))
e3509ff0
DM		 567 return 0;
568
6ed25978
AG		 569 /* Due to the resume being scheduled into a workqueue we could
570 * suspend before that's finished - wait for it to complete.
571 */
f0fba2ad
LG		 572 snd_power_lock(card->snd_card);
573 snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0);
574 snd_power_unlock(card->snd_card);
6ed25978
AG		 575
576 /* we're going to block userspace touching us until resume completes */
f0fba2ad 577 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
6ed25978 578
a00f90f9 579 /* mute any active DACs */
f0fba2ad
LG		 580 for (i = 0; i < card->num_rtd; i++) {
581 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
582 struct snd_soc_dai_driver *drv = dai->driver;
3efab7dc 583
f0fba2ad 584 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 585 continue;
586
f0fba2ad
LG		 587 if (drv->ops->digital_mute && dai->playback_active)
588 drv->ops->digital_mute(dai, 1);
db2a4165
FM		 589 }
590
4ccab3e7 591 /* suspend all pcms */
f0fba2ad
LG		 592 for (i = 0; i < card->num_rtd; i++) {
593 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 594 continue;
595
f0fba2ad 596 snd_pcm_suspend_all(card->rtd[i].pcm);
3efab7dc 597 }
4ccab3e7 598
87506549 599 if (card->suspend_pre)
70b2ac12 600 card->suspend_pre(card);
db2a4165 601
f0fba2ad
LG		 602 for (i = 0; i < card->num_rtd; i++) {
603 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
604 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 605
f0fba2ad 606 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 607 continue;
608
f0fba2ad
LG		 609 if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control)
610 cpu_dai->driver->suspend(cpu_dai);
611 if (platform->driver->suspend && !platform->suspended) {
612 platform->driver->suspend(cpu_dai);
613 platform->suspended = 1;
614 }
db2a4165
FM		 615 }
616
617 /* close any waiting streams and save state */
f0fba2ad 618 for (i = 0; i < card->num_rtd; i++) {
43829731 619 flush_delayed_work(&card->rtd[i].delayed_work);
ce6120cc 620 card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level;
f0fba2ad 621 }
db2a4165 622
f0fba2ad 623 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 624
f0fba2ad 625 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 626 continue;
627
7bd3a6f3
MB		 628 snd_soc_dapm_stream_event(&card->rtd[i],
629 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 630 SND_SOC_DAPM_STREAM_SUSPEND);
f0fba2ad 631
7bd3a6f3
MB		 632 snd_soc_dapm_stream_event(&card->rtd[i],
633 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 634 SND_SOC_DAPM_STREAM_SUSPEND);
db2a4165
FM		 635 }
636
e2d32ff6
MB		 637 /* Recheck all analogue paths too */
638 dapm_mark_io_dirty(&card->dapm);
639 snd_soc_dapm_sync(&card->dapm);
640
f0fba2ad 641 /* suspend all CODECs */
2eea392d 642 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 643 /* If there are paths active then the CODEC will be held with
644 * bias _ON and should not be suspended. */
645 if (!codec->suspended && codec->driver->suspend) {
ce6120cc 646 switch (codec->dapm.bias_level) {
f0fba2ad 647 case SND_SOC_BIAS_STANDBY:
125a25da
MB		 648 /*
649 * If the CODEC is capable of idle
650 * bias off then being in STANDBY
651 * means it's doing something,
652 * otherwise fall through.
653 */
654 if (codec->dapm.idle_bias_off) {
655 dev_dbg(codec->dev,
10e8aa9a 656 "ASoC: idle_bias_off CODEC on over suspend\n");
125a25da
MB		 657 break;
658 }
f0fba2ad 659 case SND_SOC_BIAS_OFF:
84b315ee 660 codec->driver->suspend(codec);
f0fba2ad 661 codec->suspended = 1;
7be4ba24 662 codec->cache_sync = 1;
da8b8e0f
MB		 663 if (codec->using_regmap)
664 regcache_mark_dirty(codec->control_data);
988e8cc4
NC		 665 /* deactivate pins to sleep state */
666 pinctrl_pm_select_sleep_state(codec->dev);
f0fba2ad
LG		 667 break;
668 default:
10e8aa9a
MM		 669 dev_dbg(codec->dev,
670 "ASoC: CODEC is on over suspend\n");
f0fba2ad
LG		 671 break;
672 }
1547aba9
MB		 673 }
674 }
db2a4165 675
f0fba2ad
LG		 676 for (i = 0; i < card->num_rtd; i++) {
677 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 678
f0fba2ad 679 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 680 continue;
681
f0fba2ad
LG		 682 if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control)
683 cpu_dai->driver->suspend(cpu_dai);
988e8cc4
NC		 684
685 /* deactivate pins to sleep state */
686 pinctrl_pm_select_sleep_state(cpu_dai->dev);
db2a4165
FM		 687 }
688
87506549 689 if (card->suspend_post)
70b2ac12 690 card->suspend_post(card);
db2a4165
FM		 691
692 return 0;
693}
6f8ab4ac 694EXPORT_SYMBOL_GPL(snd_soc_suspend);
db2a4165 695
6ed25978
AG		 696/* deferred resume work, so resume can complete before we finished
697 * setting our codec back up, which can be very slow on I2C
698 */
699static void soc_resume_deferred(struct work_struct *work)
db2a4165 700{
f0fba2ad
LG		 701 struct snd_soc_card *card =
702 container_of(work, struct snd_soc_card, deferred_resume_work);
2eea392d 703 struct snd_soc_codec *codec;
db2a4165
FM		 704 int i;
705
6ed25978
AG		 706 /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
707 * so userspace apps are blocked from touching us
708 */
709
f110bfc7 710 dev_dbg(card->dev, "ASoC: starting resume work\n");
6ed25978 711
9949788b 712 /* Bring us up into D2 so that DAPM starts enabling things */
f0fba2ad 713 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2);
9949788b 714
87506549 715 if (card->resume_pre)
70b2ac12 716 card->resume_pre(card);
db2a4165 717
f0fba2ad
LG		 718 /* resume AC97 DAIs */
719 for (i = 0; i < card->num_rtd; i++) {
720 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 721
f0fba2ad 722 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 723 continue;
724
f0fba2ad
LG		 725 if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control)
726 cpu_dai->driver->resume(cpu_dai);
727 }
728
2eea392d 729 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 730 /* If the CODEC was idle over suspend then it will have been
731 * left with bias OFF or STANDBY and suspended so we must now
732 * resume. Otherwise the suspend was suppressed.
733 */
734 if (codec->driver->resume && codec->suspended) {
ce6120cc 735 switch (codec->dapm.bias_level) {
f0fba2ad
LG		 736 case SND_SOC_BIAS_STANDBY:
737 case SND_SOC_BIAS_OFF:
738 codec->driver->resume(codec);
739 codec->suspended = 0;
740 break;
741 default:
10e8aa9a
MM		 742 dev_dbg(codec->dev,
743 "ASoC: CODEC was on over suspend\n");
f0fba2ad
LG		 744 break;
745 }
1547aba9
MB		 746 }
747 }
db2a4165 748
f0fba2ad 749 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 750
f0fba2ad 751 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 752 continue;
753
7bd3a6f3 754 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 755 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 756 SND_SOC_DAPM_STREAM_RESUME);
f0fba2ad 757
7bd3a6f3 758 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 759 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 760 SND_SOC_DAPM_STREAM_RESUME);
db2a4165
FM		 761 }
762
3ff3f64b 763 /* unmute any active DACs */
f0fba2ad
LG		 764 for (i = 0; i < card->num_rtd; i++) {
765 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
766 struct snd_soc_dai_driver *drv = dai->driver;
3efab7dc 767
f0fba2ad 768 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 769 continue;
770
f0fba2ad
LG		 771 if (drv->ops->digital_mute && dai->playback_active)
772 drv->ops->digital_mute(dai, 0);
db2a4165
FM		 773 }
774
f0fba2ad
LG		 775 for (i = 0; i < card->num_rtd; i++) {
776 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
777 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 778
f0fba2ad 779 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 780 continue;
781
f0fba2ad
LG		 782 if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control)
783 cpu_dai->driver->resume(cpu_dai);
784 if (platform->driver->resume && platform->suspended) {
785 platform->driver->resume(cpu_dai);
786 platform->suspended = 0;
787 }
db2a4165
FM		 788 }
789
87506549 790 if (card->resume_post)
70b2ac12 791 card->resume_post(card);
db2a4165 792
f110bfc7 793 dev_dbg(card->dev, "ASoC: resume work completed\n");
6ed25978
AG		 794
795 /* userspace can access us now we are back as we were before */
f0fba2ad 796 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0);
e2d32ff6
MB		 797
798 /* Recheck all analogue paths too */
799 dapm_mark_io_dirty(&card->dapm);
800 snd_soc_dapm_sync(&card->dapm);
6ed25978
AG		 801}
802
803/* powers up audio subsystem after a suspend */
6f8ab4ac 804int snd_soc_resume(struct device *dev)
6ed25978 805{
6f8ab4ac 806 struct snd_soc_card *card = dev_get_drvdata(dev);
82e14e8b 807 int i, ac97_control = 0;
b9dd94a8 808
5ff1ddf2
EM		 809 /* If the initialization of this soc device failed, there is no codec
810 * associated with it. Just bail out in this case.
811 */
812 if (list_empty(&card->codec_dev_list))
813 return 0;
814
988e8cc4
NC		 815 /* activate pins from sleep state */
816 for (i = 0; i < card->num_rtd; i++) {
817 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
818 struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
819 if (cpu_dai->active)
820 pinctrl_pm_select_default_state(cpu_dai->dev);
821 if (codec_dai->active)
822 pinctrl_pm_select_default_state(codec_dai->dev);
823 }
824
64ab9baa
MB		 825 /* AC97 devices might have other drivers hanging off them so
826 * need to resume immediately. Other drivers don't have that
827 * problem and may take a substantial amount of time to resume
828 * due to I/O costs and anti-pop so handle them out of line.
829 */
f0fba2ad
LG		 830 for (i = 0; i < card->num_rtd; i++) {
831 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
82e14e8b
SW		 832 ac97_control |= cpu_dai->driver->ac97_control;
833 }
834 if (ac97_control) {
f110bfc7 835 dev_dbg(dev, "ASoC: Resuming AC97 immediately\n");
82e14e8b
SW		 836 soc_resume_deferred(&card->deferred_resume_work);
837 } else {
f110bfc7 838 dev_dbg(dev, "ASoC: Scheduling resume work\n");
82e14e8b 839 if (!schedule_work(&card->deferred_resume_work))
f110bfc7 840 dev_err(dev, "ASoC: resume work item may be lost\n");
64ab9baa 841 }
6ed25978 842
db2a4165
FM		 843 return 0;
844}
6f8ab4ac 845EXPORT_SYMBOL_GPL(snd_soc_resume);
db2a4165 846#else
6f8ab4ac
MB		 847#define snd_soc_suspend NULL
848#define snd_soc_resume NULL
db2a4165
FM		 849#endif
850
85e7652d 851static const struct snd_soc_dai_ops null_dai_ops = {
02a06d30
BS		 852};
853
f0fba2ad 854static int soc_bind_dai_link(struct snd_soc_card *card, int num)
db2a4165 855{
f0fba2ad
LG		 856 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
857 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
fe3e78e0 858 struct snd_soc_codec *codec;
435c5e25 859 struct snd_soc_platform *platform;
f0fba2ad 860 struct snd_soc_dai *codec_dai, *cpu_dai;
848dd8be 861 const char *platform_name;
435c5e25 862
f110bfc7 863 dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num);
435c5e25 864
b19e6e7b 865 /* Find CPU DAI from registered DAIs*/
f0fba2ad 866 list_for_each_entry(cpu_dai, &dai_list, list) {
bc92657a
SW		 867 if (dai_link->cpu_of_node &&
868 (cpu_dai->dev->of_node != dai_link->cpu_of_node))
869 continue;
870 if (dai_link->cpu_name &&
871 strcmp(dev_name(cpu_dai->dev), dai_link->cpu_name))
872 continue;
873 if (dai_link->cpu_dai_name &&
874 strcmp(cpu_dai->name, dai_link->cpu_dai_name))
875 continue;
2610ab77
SW		 876
877 rtd->cpu_dai = cpu_dai;
435c5e25 878 }
6308419a 879
b19e6e7b 880 if (!rtd->cpu_dai) {
f110bfc7 881 dev_err(card->dev, "ASoC: CPU DAI %s not registered\n",
b19e6e7b
MB		 882 dai_link->cpu_dai_name);
883 return -EPROBE_DEFER;
f0fba2ad
LG		 884 }
885
b19e6e7b 886 /* Find CODEC from registered CODECs */
f0fba2ad 887 list_for_each_entry(codec, &codec_list, list) {
5a504963
SW		 888 if (dai_link->codec_of_node) {
889 if (codec->dev->of_node != dai_link->codec_of_node)
890 continue;
891 } else {
892 if (strcmp(codec->name, dai_link->codec_name))
893 continue;
894 }
2610ab77
SW		 895
896 rtd->codec = codec;
897
898 /*
899 * CODEC found, so find CODEC DAI from registered DAIs from
900 * this CODEC
901 */
902 list_for_each_entry(codec_dai, &dai_list, list) {
903 if (codec->dev == codec_dai->dev &&
904 !strcmp(codec_dai->name,
905 dai_link->codec_dai_name)) {
f0fba2ad 906
2610ab77 907 rtd->codec_dai = codec_dai;
2610ab77 908 }
435c5e25 909 }
2610ab77 910
b19e6e7b 911 if (!rtd->codec_dai) {
f110bfc7 912 dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n",
b19e6e7b
MB		 913 dai_link->codec_dai_name);
914 return -EPROBE_DEFER;
915 }
f0fba2ad 916 }
6b05eda6 917
b19e6e7b 918 if (!rtd->codec) {
f110bfc7 919 dev_err(card->dev, "ASoC: CODEC %s not registered\n",
b19e6e7b
MB		 920 dai_link->codec_name);
921 return -EPROBE_DEFER;
922 }
848dd8be
MB		 923
924 /* if there's no platform we match on the empty platform */
925 platform_name = dai_link->platform_name;
5a504963 926 if (!platform_name && !dai_link->platform_of_node)
848dd8be
MB		 927 platform_name = "snd-soc-dummy";
928
b19e6e7b 929 /* find one from the set of registered platforms */
f0fba2ad 930 list_for_each_entry(platform, &platform_list, list) {
5a504963
SW		 931 if (dai_link->platform_of_node) {
932 if (platform->dev->of_node !=
933 dai_link->platform_of_node)
934 continue;
935 } else {
936 if (strcmp(platform->name, platform_name))
937 continue;
938 }
2610ab77
SW		 939
940 rtd->platform = platform;
02a06d30 941 }
b19e6e7b 942 if (!rtd->platform) {
f110bfc7 943 dev_err(card->dev, "ASoC: platform %s not registered\n",
f0fba2ad 944 dai_link->platform_name);
b19e6e7b 945 return -EPROBE_DEFER;
f0fba2ad 946 }
b19e6e7b
MB		 947
948 card->num_rtd++;
949
950 return 0;
f0fba2ad
LG		 951}
952
d12cd198
SW		 953static int soc_remove_platform(struct snd_soc_platform *platform)
954{
955 int ret;
956
957 if (platform->driver->remove) {
958 ret = platform->driver->remove(platform);
959 if (ret < 0)
f110bfc7
LG		 960 dev_err(platform->dev, "ASoC: failed to remove %d\n",
961 ret);
d12cd198
SW		 962 }
963
964 /* Make sure all DAPM widgets are freed */
965 snd_soc_dapm_free(&platform->dapm);
966
967 soc_cleanup_platform_debugfs(platform);
968 platform->probed = 0;
969 list_del(&platform->card_list);
970 module_put(platform->dev->driver->owner);
971
972 return 0;
973}
974
589c3563
JN		 975static void soc_remove_codec(struct snd_soc_codec *codec)
976{
977 int err;
978
979 if (codec->driver->remove) {
980 err = codec->driver->remove(codec);
981 if (err < 0)
f110bfc7 982 dev_err(codec->dev, "ASoC: failed to remove %d\n", err);
589c3563
JN		 983 }
984
985 /* Make sure all DAPM widgets are freed */
986 snd_soc_dapm_free(&codec->dapm);
987
988 soc_cleanup_codec_debugfs(codec);
989 codec->probed = 0;
990 list_del(&codec->card_list);
991 module_put(codec->dev->driver->owner);
992}
993
62ae68fa 994static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 995{
996 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
f0fba2ad
LG		 997 struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
998 int err;
999
1000 /* unregister the rtd device */
1001 if (rtd->dev_registered) {
36ae1a96
MB		 1002 device_remove_file(rtd->dev, &dev_attr_pmdown_time);
1003 device_remove_file(rtd->dev, &dev_attr_codec_reg);
1004 device_unregister(rtd->dev);
f0fba2ad
LG		 1005 rtd->dev_registered = 0;
1006 }
1007
1008 /* remove the CODEC DAI */
0168bf0d
LG		 1009 if (codec_dai && codec_dai->probed &&
1010 codec_dai->driver->remove_order == order) {
f0fba2ad
LG		 1011 if (codec_dai->driver->remove) {
1012 err = codec_dai->driver->remove(codec_dai);
1013 if (err < 0)
f110bfc7
LG		 1014 dev_err(codec_dai->dev,
1015 "ASoC: failed to remove %s: %d\n",
1016 codec_dai->name, err);
6b05eda6 1017 }
f0fba2ad
LG		 1018 codec_dai->probed = 0;
1019 list_del(&codec_dai->card_list);
1020 }
6b05eda6 1021
f0fba2ad 1022 /* remove the cpu_dai */
0168bf0d
LG		 1023 if (cpu_dai && cpu_dai->probed &&
1024 cpu_dai->driver->remove_order == order) {
f0fba2ad
LG		 1025 if (cpu_dai->driver->remove) {
1026 err = cpu_dai->driver->remove(cpu_dai);
1027 if (err < 0)
f110bfc7
LG		 1028 dev_err(cpu_dai->dev,
1029 "ASoC: failed to remove %s: %d\n",
1030 cpu_dai->name, err);
db2a4165 1031 }
f0fba2ad
LG		 1032 cpu_dai->probed = 0;
1033 list_del(&cpu_dai->card_list);
a9db7dbe 1034
18d75644
SW		 1035 if (!cpu_dai->codec) {
1036 snd_soc_dapm_free(&cpu_dai->dapm);
a9db7dbe 1037 module_put(cpu_dai->dev->driver->owner);
18d75644 1038 }
db2a4165 1039 }
f0fba2ad 1040}
db2a4165 1041
62ae68fa
SW		 1042static void soc_remove_link_components(struct snd_soc_card *card, int num,
1043 int order)
1044{
1045 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1046 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1047 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1048 struct snd_soc_platform *platform = rtd->platform;
1049 struct snd_soc_codec *codec;
1050
1051 /* remove the platform */
1052 if (platform && platform->probed &&
1053 platform->driver->remove_order == order) {
1054 soc_remove_platform(platform);
1055 }
1056
1057 /* remove the CODEC-side CODEC */
1058 if (codec_dai) {
1059 codec = codec_dai->codec;
1060 if (codec && codec->probed &&
1061 codec->driver->remove_order == order)
1062 soc_remove_codec(codec);
1063 }
1064
1065 /* remove any CPU-side CODEC */
1066 if (cpu_dai) {
1067 codec = cpu_dai->codec;
1068 if (codec && codec->probed &&
1069 codec->driver->remove_order == order)
1070 soc_remove_codec(codec);
1071 }
1072}
1073
0671fd8e
KM		 1074static void soc_remove_dai_links(struct snd_soc_card *card)
1075{
0168bf0d 1076 int dai, order;
0671fd8e 1077
0168bf0d
LG		 1078 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1079 order++) {
1080 for (dai = 0; dai < card->num_rtd; dai++)
62ae68fa
SW		 1081 soc_remove_link_dais(card, dai, order);
1082 }
1083
1084 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1085 order++) {
1086 for (dai = 0; dai < card->num_rtd; dai++)
1087 soc_remove_link_components(card, dai, order);
0168bf0d 1088 }
62ae68fa 1089
0671fd8e
KM		 1090 card->num_rtd = 0;
1091}
1092
ead9b919
JN		 1093static void soc_set_name_prefix(struct snd_soc_card *card,
1094 struct snd_soc_codec *codec)
1095{
1096 int i;
1097
ff819b83 1098 if (card->codec_conf == NULL)
ead9b919
JN		 1099 return;
1100
ff819b83
DP		 1101 for (i = 0; i < card->num_configs; i++) {
1102 struct snd_soc_codec_conf *map = &card->codec_conf[i];
ead9b919
JN		 1103 if (map->dev_name && !strcmp(codec->name, map->dev_name)) {
1104 codec->name_prefix = map->name_prefix;
1105 break;
1106 }
1107 }
1108}
1109
589c3563
JN		 1110static int soc_probe_codec(struct snd_soc_card *card,
1111 struct snd_soc_codec *codec)
1112{
1113 int ret = 0;
89b95ac0 1114 const struct snd_soc_codec_driver *driver = codec->driver;
888df395 1115 struct snd_soc_dai *dai;
589c3563
JN		 1116
1117 codec->card = card;
1118 codec->dapm.card = card;
1119 soc_set_name_prefix(card, codec);
1120
70d29331
JN		 1121 if (!try_module_get(codec->dev->driver->owner))
1122 return -ENODEV;
1123
d5d1e0be
LPC		 1124 soc_init_codec_debugfs(codec);
1125
77530150
LPC		 1126 if (driver->dapm_widgets)
1127 snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets,
1128 driver->num_dapm_widgets);
1129
888df395
MB		 1130 /* Create DAPM widgets for each DAI stream */
1131 list_for_each_entry(dai, &dai_list, list) {
1132 if (dai->dev != codec->dev)
1133 continue;
1134
1135 snd_soc_dapm_new_dai_widgets(&codec->dapm, dai);
1136 }
1137
33c5f969
MB		 1138 codec->dapm.idle_bias_off = driver->idle_bias_off;
1139
89b95ac0
MB		 1140 if (driver->probe) {
1141 ret = driver->probe(codec);
589c3563
JN		 1142 if (ret < 0) {
1143 dev_err(codec->dev,
f110bfc7 1144 "ASoC: failed to probe CODEC %d\n", ret);
70d29331 1145 goto err_probe;
589c3563 1146 }
ff541f4b
CL		 1147 WARN(codec->dapm.idle_bias_off &&
1148 codec->dapm.bias_level != SND_SOC_BIAS_OFF,
10e8aa9a
MM		 1149 "codec %s can not start from non-off bias with idle_bias_off==1\n",
1150 codec->name);
589c3563
JN		 1151 }
1152
38cbf959 1153 /* If the driver didn't set I/O up try regmap */
98d3088e 1154 if (!codec->write && dev_get_regmap(codec->dev, NULL))
38cbf959
MB		 1155 snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
1156
b7af1daf 1157 if (driver->controls)
022658be 1158 snd_soc_add_codec_controls(codec, driver->controls,
b7af1daf 1159 driver->num_controls);
89b95ac0
MB		 1160 if (driver->dapm_routes)
1161 snd_soc_dapm_add_routes(&codec->dapm, driver->dapm_routes,
1162 driver->num_dapm_routes);
1163
589c3563
JN		 1164 /* mark codec as probed and add to card codec list */
1165 codec->probed = 1;
1166 list_add(&codec->card_list, &card->codec_dev_list);
7be31be8 1167 list_add(&codec->dapm.list, &card->dapm_list);
589c3563 1168
70d29331
JN		 1169 return 0;
1170
1171err_probe:
d5d1e0be 1172 soc_cleanup_codec_debugfs(codec);
70d29331
JN		 1173 module_put(codec->dev->driver->owner);
1174
589c3563
JN		 1175 return ret;
1176}
1177
956245e9
LG		 1178static int soc_probe_platform(struct snd_soc_card *card,
1179 struct snd_soc_platform *platform)
1180{
1181 int ret = 0;
1182 const struct snd_soc_platform_driver *driver = platform->driver;
be09ad90 1183 struct snd_soc_dai *dai;
956245e9
LG		 1184
1185 platform->card = card;
b7950641 1186 platform->dapm.card = card;
956245e9
LG		 1187
1188 if (!try_module_get(platform->dev->driver->owner))
1189 return -ENODEV;
1190
731f1ab2
SG		 1191 soc_init_platform_debugfs(platform);
1192
cb2cf612
LG		 1193 if (driver->dapm_widgets)
1194 snd_soc_dapm_new_controls(&platform->dapm,
1195 driver->dapm_widgets, driver->num_dapm_widgets);
1196
be09ad90
LG		 1197 /* Create DAPM widgets for each DAI stream */
1198 list_for_each_entry(dai, &dai_list, list) {
1199 if (dai->dev != platform->dev)
1200 continue;
1201
1202 snd_soc_dapm_new_dai_widgets(&platform->dapm, dai);
1203 }
1204
3fec6b6d
SW		 1205 platform->dapm.idle_bias_off = 1;
1206
956245e9
LG		 1207 if (driver->probe) {
1208 ret = driver->probe(platform);
1209 if (ret < 0) {
1210 dev_err(platform->dev,
f110bfc7 1211 "ASoC: failed to probe platform %d\n", ret);
956245e9
LG		 1212 goto err_probe;
1213 }
1214 }
1215
cb2cf612
LG		 1216 if (driver->controls)
1217 snd_soc_add_platform_controls(platform, driver->controls,
1218 driver->num_controls);
1219 if (driver->dapm_routes)
1220 snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes,
1221 driver->num_dapm_routes);
1222
956245e9
LG		 1223 /* mark platform as probed and add to card platform list */
1224 platform->probed = 1;
1225 list_add(&platform->card_list, &card->platform_dev_list);
b7950641 1226 list_add(&platform->dapm.list, &card->dapm_list);
956245e9
LG		 1227
1228 return 0;
1229
1230err_probe:
02db1103 1231 soc_cleanup_platform_debugfs(platform);
956245e9
LG		 1232 module_put(platform->dev->driver->owner);
1233
1234 return ret;
1235}
1236
36ae1a96
MB		 1237static void rtd_release(struct device *dev)
1238{
1239 kfree(dev);
1240}
f0fba2ad 1241
589c3563
JN		 1242static int soc_post_component_init(struct snd_soc_card *card,
1243 struct snd_soc_codec *codec,
1244 int num, int dailess)
1245{
1246 struct snd_soc_dai_link *dai_link = NULL;
1247 struct snd_soc_aux_dev *aux_dev = NULL;
1248 struct snd_soc_pcm_runtime *rtd;
1249 const char *temp, *name;
1250 int ret = 0;
1251
1252 if (!dailess) {
1253 dai_link = &card->dai_link[num];
1254 rtd = &card->rtd[num];
1255 name = dai_link->name;
1256 } else {
1257 aux_dev = &card->aux_dev[num];
1258 rtd = &card->rtd_aux[num];
1259 name = aux_dev->name;
1260 }
0962bb21 1261 rtd->card = card;
589c3563
JN		 1262
1263 /* machine controls, routes and widgets are not prefixed */
1264 temp = codec->name_prefix;
1265 codec->name_prefix = NULL;
1266
1267 /* do machine specific initialization */
1268 if (!dailess && dai_link->init)
1269 ret = dai_link->init(rtd);
1270 else if (dailess && aux_dev->init)
1271 ret = aux_dev->init(&codec->dapm);
1272 if (ret < 0) {
f110bfc7 1273 dev_err(card->dev, "ASoC: failed to init %s: %d\n", name, ret);
589c3563
JN		 1274 return ret;
1275 }
1276 codec->name_prefix = temp;
1277
589c3563
JN		 1278 /* register the rtd device */
1279 rtd->codec = codec;
36ae1a96
MB		 1280
1281 rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
1282 if (!rtd->dev)
1283 return -ENOMEM;
1284 device_initialize(rtd->dev);
1285 rtd->dev->parent = card->dev;
1286 rtd->dev->release = rtd_release;
1287 rtd->dev->init_name = name;
1288 dev_set_drvdata(rtd->dev, rtd);
b8c0dab9 1289 mutex_init(&rtd->pcm_mutex);
01d7584c
LG		 1290 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients);
1291 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients);
1292 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients);
1293 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
36ae1a96 1294 ret = device_add(rtd->dev);
589c3563 1295 if (ret < 0) {
865df9cb
CL		 1296 /* calling put_device() here to free the rtd->dev */
1297 put_device(rtd->dev);
589c3563 1298 dev_err(card->dev,
f110bfc7 1299 "ASoC: failed to register runtime device: %d\n", ret);
589c3563
JN		 1300 return ret;
1301 }
1302 rtd->dev_registered = 1;
1303
1304 /* add DAPM sysfs entries for this codec */
36ae1a96 1305 ret = snd_soc_dapm_sys_add(rtd->dev);
589c3563
JN		 1306 if (ret < 0)
1307 dev_err(codec->dev,
f110bfc7 1308 "ASoC: failed to add codec dapm sysfs entries: %d\n", ret);
589c3563
JN		 1309
1310 /* add codec sysfs entries */
36ae1a96 1311 ret = device_create_file(rtd->dev, &dev_attr_codec_reg);
589c3563
JN		 1312 if (ret < 0)
1313 dev_err(codec->dev,
f110bfc7 1314 "ASoC: failed to add codec sysfs files: %d\n", ret);
589c3563 1315
f86dcef8
LG		 1316#ifdef CONFIG_DEBUG_FS
1317 /* add DPCM sysfs entries */
cd0f8911 1318 if (!dailess && !dai_link->dynamic)
f86dcef8
LG		 1319 goto out;
1320
1321 ret = soc_dpcm_debugfs_add(rtd);
1322 if (ret < 0)
f110bfc7 1323 dev_err(rtd->dev, "ASoC: failed to add dpcm sysfs entries: %d\n", ret);
f86dcef8
LG		 1324
1325out:
1326#endif
589c3563
JN		 1327 return 0;
1328}
1329
62ae68fa
SW		 1330static int soc_probe_link_components(struct snd_soc_card *card, int num,
1331 int order)
1332{
1333 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1334 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1335 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1336 struct snd_soc_platform *platform = rtd->platform;
1337 int ret;
1338
1339 /* probe the CPU-side component, if it is a CODEC */
1340 if (cpu_dai->codec &&
1341 !cpu_dai->codec->probed &&
1342 cpu_dai->codec->driver->probe_order == order) {
1343 ret = soc_probe_codec(card, cpu_dai->codec);
1344 if (ret < 0)
1345 return ret;
1346 }
1347
1348 /* probe the CODEC-side component */
1349 if (!codec_dai->codec->probed &&
1350 codec_dai->codec->driver->probe_order == order) {
1351 ret = soc_probe_codec(card, codec_dai->codec);
1352 if (ret < 0)
1353 return ret;
1354 }
1355
1356 /* probe the platform */
1357 if (!platform->probed &&
1358 platform->driver->probe_order == order) {
1359 ret = soc_probe_platform(card, platform);
1360 if (ret < 0)
1361 return ret;
1362 }
1363
1364 return 0;
1365}
1366
1367static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 1368{
1369 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
1370 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1371 struct snd_soc_codec *codec = rtd->codec;
1372 struct snd_soc_platform *platform = rtd->platform;
c74184ed
MB		 1373 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1374 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1375 struct snd_soc_dapm_widget *play_w, *capture_w;
f0fba2ad
LG		 1376 int ret;
1377
f110bfc7 1378 dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n",
0168bf0d 1379 card->name, num, order);
f0fba2ad
LG		 1380
1381 /* config components */
f0fba2ad 1382 cpu_dai->platform = platform;
f0fba2ad
LG		 1383 codec_dai->card = card;
1384 cpu_dai->card = card;
1385
1386 /* set default power off timeout */
1387 rtd->pmdown_time = pmdown_time;
1388
1389 /* probe the cpu_dai */
0168bf0d
LG		 1390 if (!cpu_dai->probed &&
1391 cpu_dai->driver->probe_order == order) {
a9db7dbe
SW		 1392 if (!cpu_dai->codec) {
1393 cpu_dai->dapm.card = card;
1394 if (!try_module_get(cpu_dai->dev->driver->owner))
1395 return -ENODEV;
61b61e3c 1396
18d75644 1397 list_add(&cpu_dai->dapm.list, &card->dapm_list);
a9db7dbe 1398 }
be09ad90 1399
f0fba2ad
LG		 1400 if (cpu_dai->driver->probe) {
1401 ret = cpu_dai->driver->probe(cpu_dai);
1402 if (ret < 0) {
f110bfc7
LG		 1403 dev_err(cpu_dai->dev,
1404 "ASoC: failed to probe CPU DAI %s: %d\n",
1405 cpu_dai->name, ret);
61b61e3c 1406 module_put(cpu_dai->dev->driver->owner);
f0fba2ad
LG		 1407 return ret;
1408 }
1409 }
1410 cpu_dai->probed = 1;
1c8371d6 1411 /* mark cpu_dai as probed and add to card dai list */
f0fba2ad 1412 list_add(&cpu_dai->card_list, &card->dai_dev_list);
db2a4165
FM		 1413 }
1414
f0fba2ad 1415 /* probe the CODEC DAI */
0168bf0d 1416 if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
f0fba2ad
LG		 1417 if (codec_dai->driver->probe) {
1418 ret = codec_dai->driver->probe(codec_dai);
fe3e78e0 1419 if (ret < 0) {
f110bfc7
LG		 1420 dev_err(codec_dai->dev,
1421 "ASoC: failed to probe CODEC DAI %s: %d\n",
1422 codec_dai->name, ret);
f0fba2ad 1423 return ret;
fe3e78e0
MB		 1424 }
1425 }
f0fba2ad 1426
1c8371d6 1427 /* mark codec_dai as probed and add to card dai list */
f0fba2ad
LG		 1428 codec_dai->probed = 1;
1429 list_add(&codec_dai->card_list, &card->dai_dev_list);
fe3e78e0
MB		 1430 }
1431
0168bf0d
LG		 1432 /* complete DAI probe during last probe */
1433 if (order != SND_SOC_COMP_ORDER_LAST)
1434 return 0;
1435
589c3563
JN		 1436 ret = soc_post_component_init(card, codec, num, 0);
1437 if (ret)
f0fba2ad 1438 return ret;
fe3e78e0 1439
36ae1a96 1440 ret = device_create_file(rtd->dev, &dev_attr_pmdown_time);
f0fba2ad 1441 if (ret < 0)
f110bfc7
LG		 1442 dev_warn(rtd->dev, "ASoC: failed to add pmdown_time sysfs: %d\n",
1443 ret);
f0fba2ad 1444
1245b700
NK		 1445 if (cpu_dai->driver->compress_dai) {
1446 /*create compress_device"*/
1447 ret = soc_new_compress(rtd, num);
c74184ed 1448 if (ret < 0) {
f110bfc7 1449 dev_err(card->dev, "ASoC: can't create compress %s\n",
1245b700 1450 dai_link->stream_name);
c74184ed
MB		 1451 return ret;
1452 }
1453 } else {
1245b700
NK		 1454
1455 if (!dai_link->params) {
1456 /* create the pcm */
1457 ret = soc_new_pcm(rtd, num);
1458 if (ret < 0) {
f110bfc7 1459 dev_err(card->dev, "ASoC: can't create pcm %s :%d\n",
1245b700 1460 dai_link->stream_name, ret);
c74184ed
MB		 1461 return ret;
1462 }
1245b700 1463 } else {
9d58a077
RF		 1464 INIT_DELAYED_WORK(&rtd->delayed_work,
1465 codec2codec_close_delayed_work);
1466
1245b700
NK		 1467 /* link the DAI widgets */
1468 play_w = codec_dai->playback_widget;
1469 capture_w = cpu_dai->capture_widget;
1470 if (play_w && capture_w) {
1471 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
1472 capture_w, play_w);
1473 if (ret != 0) {
f110bfc7 1474 dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
1245b700
NK		 1475 play_w->name, capture_w->name, ret);
1476 return ret;
1477 }
1478 }
c74184ed 1479
1245b700
NK		 1480 play_w = cpu_dai->playback_widget;
1481 capture_w = codec_dai->capture_widget;
1482 if (play_w && capture_w) {
1483 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
c74184ed 1484 capture_w, play_w);
1245b700 1485 if (ret != 0) {
f110bfc7 1486 dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
1245b700
NK		 1487 play_w->name, capture_w->name, ret);
1488 return ret;
1489 }
c74184ed
MB		 1490 }
1491 }
f0fba2ad
LG		 1492 }
1493
1494 /* add platform data for AC97 devices */
1495 if (rtd->codec_dai->driver->ac97_control)
1496 snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata);
1497
1498 return 0;
1499}
1500
fe3e78e0 1501#ifdef CONFIG_SND_SOC_AC97_BUS
f0fba2ad
LG		 1502static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
1503{
1504 int ret;
1505
fe3e78e0
MB		 1506 /* Only instantiate AC97 if not already done by the adaptor
1507 * for the generic AC97 subsystem.
1508 */
f0fba2ad 1509 if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) {
0562f788
MW		 1510 /*
1511 * It is possible that the AC97 device is already registered to
1512 * the device subsystem. This happens when the device is created
1513 * via snd_ac97_mixer(). Currently only SoC codec that does so
1514 * is the generic AC97 glue but others migh emerge.
1515 *
1516 * In those cases we don't try to register the device again.
1517 */
1518 if (!rtd->codec->ac97_created)
1519 return 0;
f0fba2ad
LG		 1520
1521 ret = soc_ac97_dev_register(rtd->codec);
fe3e78e0 1522 if (ret < 0) {
f110bfc7
LG		 1523 dev_err(rtd->codec->dev,
1524 "ASoC: AC97 device register failed: %d\n", ret);
f0fba2ad 1525 return ret;
fe3e78e0 1526 }
f0fba2ad
LG		 1527
1528 rtd->codec->ac97_registered = 1;
fe3e78e0 1529 }
f0fba2ad
LG		 1530 return 0;
1531}
1532
1533static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec)
1534{
1535 if (codec->ac97_registered) {
1536 soc_ac97_dev_unregister(codec);
1537 codec->ac97_registered = 0;
1538 }
1539}
fe3e78e0
MB		 1540#endif
1541
b19e6e7b
MB		 1542static int soc_check_aux_dev(struct snd_soc_card *card, int num)
1543{
1544 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
1545 struct snd_soc_codec *codec;
1546
1547 /* find CODEC from registered CODECs*/
1548 list_for_each_entry(codec, &codec_list, list) {
1549 if (!strcmp(codec->name, aux_dev->codec_name))
1550 return 0;
1551 }
1552
f110bfc7 1553 dev_err(card->dev, "ASoC: %s not registered\n", aux_dev->codec_name);
fb099cb7 1554
b19e6e7b
MB		 1555 return -EPROBE_DEFER;
1556}
1557
2eea392d
JN		 1558static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
1559{
1560 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
2eea392d 1561 struct snd_soc_codec *codec;
676ad98a 1562 int ret = -ENODEV;
2eea392d
JN		 1563
1564 /* find CODEC from registered CODECs*/
1565 list_for_each_entry(codec, &codec_list, list) {
1566 if (!strcmp(codec->name, aux_dev->codec_name)) {
1567 if (codec->probed) {
1568 dev_err(codec->dev,
f110bfc7 1569 "ASoC: codec already probed");
2eea392d
JN		 1570 ret = -EBUSY;
1571 goto out;
1572 }
676ad98a 1573 goto found;
2eea392d
JN		 1574 }
1575 }
676ad98a 1576 /* codec not found */
f110bfc7 1577 dev_err(card->dev, "ASoC: codec %s not found", aux_dev->codec_name);
b19e6e7b 1578 return -EPROBE_DEFER;
2eea392d 1579
676ad98a 1580found:
589c3563 1581 ret = soc_probe_codec(card, codec);
2eea392d 1582 if (ret < 0)
589c3563 1583 return ret;
2eea392d 1584
589c3563 1585 ret = soc_post_component_init(card, codec, num, 1);
2eea392d
JN		 1586
1587out:
1588 return ret;
1589}
1590
1591static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
1592{
1593 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
1594 struct snd_soc_codec *codec = rtd->codec;
2eea392d
JN		 1595
1596 /* unregister the rtd device */
1597 if (rtd->dev_registered) {
36ae1a96 1598 device_remove_file(rtd->dev, &dev_attr_codec_reg);
d3bf1561 1599 device_unregister(rtd->dev);
2eea392d
JN		 1600 rtd->dev_registered = 0;
1601 }
1602
589c3563
JN		 1603 if (codec && codec->probed)
1604 soc_remove_codec(codec);
2eea392d
JN		 1605}
1606
f90fb3f7 1607static int snd_soc_init_codec_cache(struct snd_soc_codec *codec)
fdf0f54d
DP		 1608{
1609 int ret;
1610
1611 if (codec->cache_init)
1612 return 0;
1613
fdf0f54d
DP		 1614 ret = snd_soc_cache_init(codec);
1615 if (ret < 0) {
10e8aa9a
MM		 1616 dev_err(codec->dev,
1617 "ASoC: Failed to set cache compression type: %d\n",
1618 ret);
fdf0f54d
DP		 1619 return ret;
1620 }
1621 codec->cache_init = 1;
1622 return 0;
1623}
1624
b19e6e7b 1625static int snd_soc_instantiate_card(struct snd_soc_card *card)
f0fba2ad 1626{
fdf0f54d 1627 struct snd_soc_codec *codec;
75d9ac46 1628 struct snd_soc_dai_link *dai_link;
f04209a7 1629 int ret, i, order, dai_fmt;
fe3e78e0 1630
01b9d99a 1631 mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
dbe21408 1632
f0fba2ad 1633 /* bind DAIs */
b19e6e7b
MB		 1634 for (i = 0; i < card->num_links; i++) {
1635 ret = soc_bind_dai_link(card, i);
1636 if (ret != 0)
1637 goto base_error;
1638 }
fe3e78e0 1639
b19e6e7b
MB		 1640 /* check aux_devs too */
1641 for (i = 0; i < card->num_aux_devs; i++) {
1642 ret = soc_check_aux_dev(card, i);
1643 if (ret != 0)
1644 goto base_error;
f0fba2ad 1645 }
435c5e25 1646
fdf0f54d
DP		 1647 /* initialize the register cache for each available codec */
1648 list_for_each_entry(codec, &codec_list, list) {
1649 if (codec->cache_init)
1650 continue;
f90fb3f7 1651 ret = snd_soc_init_codec_cache(codec);
b19e6e7b
MB		 1652 if (ret < 0)
1653 goto base_error;
fdf0f54d
DP		 1654 }
1655
f0fba2ad
LG		 1656 /* card bind complete so register a sound card */
1657 ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
1658 card->owner, 0, &card->snd_card);
1659 if (ret < 0) {
10e8aa9a
MM		 1660 dev_err(card->dev,
1661 "ASoC: can't create sound card for card %s: %d\n",
1662 card->name, ret);
b19e6e7b 1663 goto base_error;
f0fba2ad
LG		 1664 }
1665 card->snd_card->dev = card->dev;
1666
e37a4970
MB		 1667 card->dapm.bias_level = SND_SOC_BIAS_OFF;
1668 card->dapm.dev = card->dev;
1669 card->dapm.card = card;
1670 list_add(&card->dapm.list, &card->dapm_list);
1671
d5d1e0be
LPC		 1672#ifdef CONFIG_DEBUG_FS
1673 snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root);
1674#endif
1675
88ee1c61 1676#ifdef CONFIG_PM_SLEEP
f0fba2ad
LG		 1677 /* deferred resume work */
1678 INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
1679#endif
db2a4165 1680
9a841ebb
MB		 1681 if (card->dapm_widgets)
1682 snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
1683 card->num_dapm_widgets);
1684
f0fba2ad
LG		 1685 /* initialise the sound card only once */
1686 if (card->probe) {
e7361ec4 1687 ret = card->probe(card);
f0fba2ad
LG		 1688 if (ret < 0)
1689 goto card_probe_error;
1690 }
fe3e78e0 1691
62ae68fa 1692 /* probe all components used by DAI links on this card */
0168bf0d
LG		 1693 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1694 order++) {
1695 for (i = 0; i < card->num_links; i++) {
62ae68fa 1696 ret = soc_probe_link_components(card, i, order);
0168bf0d 1697 if (ret < 0) {
f110bfc7
LG		 1698 dev_err(card->dev,
1699 "ASoC: failed to instantiate card %d\n",
1700 ret);
62ae68fa
SW		 1701 goto probe_dai_err;
1702 }
1703 }
1704 }
1705
1706 /* probe all DAI links on this card */
1707 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1708 order++) {
1709 for (i = 0; i < card->num_links; i++) {
1710 ret = soc_probe_link_dais(card, i, order);
1711 if (ret < 0) {
f110bfc7
LG		 1712 dev_err(card->dev,
1713 "ASoC: failed to instantiate card %d\n",
1714 ret);
0168bf0d
LG		 1715 goto probe_dai_err;
1716 }
f0fba2ad
LG		 1717 }
1718 }
db2a4165 1719
2eea392d
JN		 1720 for (i = 0; i < card->num_aux_devs; i++) {
1721 ret = soc_probe_aux_dev(card, i);
1722 if (ret < 0) {
f110bfc7
LG		 1723 dev_err(card->dev,
1724 "ASoC: failed to add auxiliary devices %d\n",
1725 ret);
2eea392d
JN		 1726 goto probe_aux_dev_err;
1727 }
1728 }
1729
888df395
MB		 1730 snd_soc_dapm_link_dai_widgets(card);
1731
b7af1daf 1732 if (card->controls)
022658be 1733 snd_soc_add_card_controls(card, card->controls, card->num_controls);
b7af1daf 1734
b8ad29de
MB		 1735 if (card->dapm_routes)
1736 snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
1737 card->num_dapm_routes);
1738
75d9ac46
MB		 1739 for (i = 0; i < card->num_links; i++) {
1740 dai_link = &card->dai_link[i];
f04209a7 1741 dai_fmt = dai_link->dai_fmt;
75d9ac46 1742
f04209a7 1743 if (dai_fmt) {
75d9ac46 1744 ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai,
f04209a7 1745 dai_fmt);
5e4ba569 1746 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46 1747 dev_warn(card->rtd[i].codec_dai->dev,
f110bfc7 1748 "ASoC: Failed to set DAI format: %d\n",
75d9ac46 1749 ret);
f04209a7
MB		 1750 }
1751
1752 /* If this is a regular CPU link there will be a platform */
fe33d4c5
SW		 1753 if (dai_fmt &&
1754 (dai_link->platform_name || dai_link->platform_of_node)) {
f04209a7
MB		 1755 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
1756 dai_fmt);
1757 if (ret != 0 && ret != -ENOTSUPP)
1758 dev_warn(card->rtd[i].cpu_dai->dev,
f110bfc7 1759 "ASoC: Failed to set DAI format: %d\n",
f04209a7
MB		 1760 ret);
1761 } else if (dai_fmt) {
1762 /* Flip the polarity for the "CPU" end */
1763 dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
1764 switch (dai_link->dai_fmt &
1765 SND_SOC_DAIFMT_MASTER_MASK) {
1766 case SND_SOC_DAIFMT_CBM_CFM:
1767 dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
1768 break;
1769 case SND_SOC_DAIFMT_CBM_CFS:
1770 dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
1771 break;
1772 case SND_SOC_DAIFMT_CBS_CFM:
1773 dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
1774 break;
1775 case SND_SOC_DAIFMT_CBS_CFS:
1776 dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
1777 break;
1778 }
75d9ac46
MB		 1779
1780 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
f04209a7 1781 dai_fmt);
5e4ba569 1782 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46 1783 dev_warn(card->rtd[i].cpu_dai->dev,
f110bfc7 1784 "ASoC: Failed to set DAI format: %d\n",
75d9ac46
MB		 1785 ret);
1786 }
1787 }
1788
f0fba2ad 1789 snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
f0fba2ad 1790 "%s", card->name);
22de71ba
LG		 1791 snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
1792 "%s", card->long_name ? card->long_name : card->name);
f0e8ed85
MB		 1793 snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
1794 "%s", card->driver_name ? card->driver_name : card->name);
1795 for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
1796 switch (card->snd_card->driver[i]) {
1797 case '_':
1798 case '-':
1799 case '\0':
1800 break;
1801 default:
1802 if (!isalnum(card->snd_card->driver[i]))
1803 card->snd_card->driver[i] = '_';
1804 break;
1805 }
1806 }
f0fba2ad 1807
28e9ad92
MB		 1808 if (card->late_probe) {
1809 ret = card->late_probe(card);
1810 if (ret < 0) {
f110bfc7 1811 dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n",
28e9ad92
MB		 1812 card->name, ret);
1813 goto probe_aux_dev_err;
1814 }
1815 }
1816
1633281b 1817 if (card->fully_routed)
b05d8dc1 1818 list_for_each_entry(codec, &card->codec_dev_list, card_list)
1633281b
SW		 1819 snd_soc_dapm_auto_nc_codec_pins(codec);
1820
824ef826 1821 snd_soc_dapm_new_widgets(card);
8c193b8d 1822
f0fba2ad
LG		 1823 ret = snd_card_register(card->snd_card);
1824 if (ret < 0) {
f110bfc7
LG		 1825 dev_err(card->dev, "ASoC: failed to register soundcard %d\n",
1826 ret);
6b3ed785 1827 goto probe_aux_dev_err;
db2a4165
FM		 1828 }
1829
f0fba2ad
LG		 1830#ifdef CONFIG_SND_SOC_AC97_BUS
1831 /* register any AC97 codecs */
1832 for (i = 0; i < card->num_rtd; i++) {
6b3ed785
AL		 1833 ret = soc_register_ac97_dai_link(&card->rtd[i]);
1834 if (ret < 0) {
10e8aa9a
MM		 1835 dev_err(card->dev,
1836 "ASoC: failed to register AC97: %d\n", ret);
6b3ed785 1837 while (--i >= 0)
7d8316df 1838 soc_unregister_ac97_dai_link(card->rtd[i].codec);
6b3ed785 1839 goto probe_aux_dev_err;
f0fba2ad 1840 }
6b3ed785 1841 }
f0fba2ad
LG		 1842#endif
1843
1844 card->instantiated = 1;
4f4c0072 1845 snd_soc_dapm_sync(&card->dapm);
f0fba2ad 1846 mutex_unlock(&card->mutex);
b19e6e7b
MB		 1847
1848 return 0;
f0fba2ad 1849
2eea392d
JN		 1850probe_aux_dev_err:
1851 for (i = 0; i < card->num_aux_devs; i++)
1852 soc_remove_aux_dev(card, i);
1853
f0fba2ad 1854probe_dai_err:
0671fd8e 1855 soc_remove_dai_links(card);
f0fba2ad
LG		 1856
1857card_probe_error:
87506549 1858 if (card->remove)
e7361ec4 1859 card->remove(card);
f0fba2ad
LG		 1860
1861 snd_card_free(card->snd_card);
1862
b19e6e7b 1863base_error:
f0fba2ad 1864 mutex_unlock(&card->mutex);
db2a4165 1865
b19e6e7b 1866 return ret;
435c5e25
MB		 1867}
1868
1869/* probes a new socdev */
1870static int soc_probe(struct platform_device *pdev)
1871{
f0fba2ad 1872 struct snd_soc_card *card = platform_get_drvdata(pdev);
435c5e25 1873
70a7ca34
VK		 1874 /*
1875 * no card, so machine driver should be registering card
1876 * we should not be here in that case so ret error
1877 */
1878 if (!card)
1879 return -EINVAL;
1880
fe4085e8 1881 dev_warn(&pdev->dev,
f110bfc7 1882 "ASoC: machine %s should use snd_soc_register_card()\n",
fe4085e8
MB		 1883 card->name);
1884
435c5e25
MB		 1885 /* Bodge while we unpick instantiation */
1886 card->dev = &pdev->dev;
f0fba2ad 1887
28d528c8 1888 return snd_soc_register_card(card);
db2a4165
FM		 1889}
1890
b0e26485 1891static int soc_cleanup_card_resources(struct snd_soc_card *card)
db2a4165
FM		 1892{
1893 int i;
db2a4165 1894
b0e26485
VK		 1895 /* make sure any delayed work runs */
1896 for (i = 0; i < card->num_rtd; i++) {
1897 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
43829731 1898 flush_delayed_work(&rtd->delayed_work);
b0e26485 1899 }
914dc182 1900
b0e26485
VK		 1901 /* remove auxiliary devices */
1902 for (i = 0; i < card->num_aux_devs; i++)
1903 soc_remove_aux_dev(card, i);
db2a4165 1904
b0e26485 1905 /* remove and free each DAI */
0671fd8e 1906 soc_remove_dai_links(card);
2eea392d 1907
b0e26485 1908 soc_cleanup_card_debugfs(card);
f0fba2ad 1909
b0e26485
VK		 1910 /* remove the card */
1911 if (card->remove)
e7361ec4 1912 card->remove(card);
a6052154 1913
0aaae527
LPC		 1914 snd_soc_dapm_free(&card->dapm);
1915
b0e26485
VK		 1916 snd_card_free(card->snd_card);
1917 return 0;
1918
1919}
1920
1921/* removes a socdev */
1922static int soc_remove(struct platform_device *pdev)
1923{
1924 struct snd_soc_card *card = platform_get_drvdata(pdev);
db2a4165 1925
c5af3a2e 1926 snd_soc_unregister_card(card);
db2a4165
FM		 1927 return 0;
1928}
1929
6f8ab4ac 1930int snd_soc_poweroff(struct device *dev)
51737470 1931{
6f8ab4ac 1932 struct snd_soc_card *card = dev_get_drvdata(dev);
f0fba2ad 1933 int i;
51737470
MB		 1934
1935 if (!card->instantiated)
416356fc 1936 return 0;
51737470
MB		 1937
1938 /* Flush out pmdown_time work - we actually do want to run it
1939 * now, we're shutting down so no imminent restart. */
f0fba2ad
LG		 1940 for (i = 0; i < card->num_rtd; i++) {
1941 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
43829731 1942 flush_delayed_work(&rtd->delayed_work);
f0fba2ad 1943 }
51737470 1944
f0fba2ad 1945 snd_soc_dapm_shutdown(card);
416356fc 1946
988e8cc4
NC		 1947 /* deactivate pins to sleep state */
1948 for (i = 0; i < card->num_rtd; i++) {
1949 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
1950 struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
1951 pinctrl_pm_select_sleep_state(codec_dai->dev);
1952 pinctrl_pm_select_sleep_state(cpu_dai->dev);
1953 }
1954
416356fc 1955 return 0;
51737470 1956}
6f8ab4ac 1957EXPORT_SYMBOL_GPL(snd_soc_poweroff);
51737470 1958
6f8ab4ac 1959const struct dev_pm_ops snd_soc_pm_ops = {
b1dd5897
VK		 1960 .suspend = snd_soc_suspend,
1961 .resume = snd_soc_resume,
1962 .freeze = snd_soc_suspend,
1963 .thaw = snd_soc_resume,
6f8ab4ac 1964 .poweroff = snd_soc_poweroff,
b1dd5897 1965 .restore = snd_soc_resume,
416356fc 1966};
deb2607e 1967EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
416356fc 1968
db2a4165
FM		 1969/* ASoC platform driver */
1970static struct platform_driver soc_driver = {
1971 .driver = {
1972 .name = "soc-audio",
8b45a209 1973 .owner = THIS_MODULE,
6f8ab4ac 1974 .pm = &snd_soc_pm_ops,
db2a4165
FM		 1975 },
1976 .probe = soc_probe,
1977 .remove = soc_remove,
db2a4165
FM		 1978};
1979
096e49d5
MB		 1980/**
1981 * snd_soc_codec_volatile_register: Report if a register is volatile.
1982 *
1983 * @codec: CODEC to query.
1984 * @reg: Register to query.
1985 *
1986 * Boolean function indiciating if a CODEC register is volatile.
1987 */
181e055e
MB		 1988int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
1989 unsigned int reg)
096e49d5 1990{
1500b7b5
DP		 1991 if (codec->volatile_register)
1992 return codec->volatile_register(codec, reg);
096e49d5
MB		 1993 else
1994 return 0;
1995}
1996EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register);
1997
239c9706
DP		 1998/**
1999 * snd_soc_codec_readable_register: Report if a register is readable.
2000 *
2001 * @codec: CODEC to query.
2002 * @reg: Register to query.
2003 *
2004 * Boolean function indicating if a CODEC register is readable.
2005 */
2006int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
2007 unsigned int reg)
2008{
2009 if (codec->readable_register)
2010 return codec->readable_register(codec, reg);
2011 else
63fa0a28 2012 return 1;
239c9706
DP		 2013}
2014EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register);
2015
2016/**
2017 * snd_soc_codec_writable_register: Report if a register is writable.
2018 *
2019 * @codec: CODEC to query.
2020 * @reg: Register to query.
2021 *
2022 * Boolean function indicating if a CODEC register is writable.
2023 */
2024int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
2025 unsigned int reg)
2026{
2027 if (codec->writable_register)
2028 return codec->writable_register(codec, reg);
2029 else
63fa0a28 2030 return 1;
239c9706
DP		 2031}
2032EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register);
2033
f1442bc1
LG		 2034int snd_soc_platform_read(struct snd_soc_platform *platform,
2035 unsigned int reg)
2036{
2037 unsigned int ret;
2038
2039 if (!platform->driver->read) {
f110bfc7 2040 dev_err(platform->dev, "ASoC: platform has no read back\n");
f1442bc1
LG		 2041 return -1;
2042 }
2043
2044 ret = platform->driver->read(platform, reg);
2045 dev_dbg(platform->dev, "read %x => %x\n", reg, ret);
a82ce2ae 2046 trace_snd_soc_preg_read(platform, reg, ret);
f1442bc1
LG		 2047
2048 return ret;
2049}
2050EXPORT_SYMBOL_GPL(snd_soc_platform_read);
2051
2052int snd_soc_platform_write(struct snd_soc_platform *platform,
2053 unsigned int reg, unsigned int val)
2054{
2055 if (!platform->driver->write) {
f110bfc7 2056 dev_err(platform->dev, "ASoC: platform has no write back\n");
f1442bc1
LG		 2057 return -1;
2058 }
2059
2060 dev_dbg(platform->dev, "write %x = %x\n", reg, val);
a82ce2ae 2061 trace_snd_soc_preg_write(platform, reg, val);
f1442bc1
LG		 2062 return platform->driver->write(platform, reg, val);
2063}
2064EXPORT_SYMBOL_GPL(snd_soc_platform_write);
2065
db2a4165
FM		 2066/**
2067 * snd_soc_new_ac97_codec - initailise AC97 device
2068 * @codec: audio codec
2069 * @ops: AC97 bus operations
2070 * @num: AC97 codec number
2071 *
2072 * Initialises AC97 codec resources for use by ad-hoc devices only.
2073 */
2074int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
2075 struct snd_ac97_bus_ops *ops, int num)
2076{
2077 mutex_lock(&codec->mutex);
2078
2079 codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
2080 if (codec->ac97 == NULL) {
2081 mutex_unlock(&codec->mutex);
2082 return -ENOMEM;
2083 }
2084
2085 codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL);
2086 if (codec->ac97->bus == NULL) {
2087 kfree(codec->ac97);
2088 codec->ac97 = NULL;
2089 mutex_unlock(&codec->mutex);
2090 return -ENOMEM;
2091 }
2092
2093 codec->ac97->bus->ops = ops;
2094 codec->ac97->num = num;
0562f788
MW		 2095
2096 /*
2097 * Mark the AC97 device to be created by us. This way we ensure that the
2098 * device will be registered with the device subsystem later on.
2099 */
2100 codec->ac97_created = 1;
2101
db2a4165
FM		 2102 mutex_unlock(&codec->mutex);
2103 return 0;
2104}
2105EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
2106
741a509f
MP		 2107static struct snd_ac97_reset_cfg snd_ac97_rst_cfg;
2108
2109static void snd_soc_ac97_warm_reset(struct snd_ac97 *ac97)
2110{
2111 struct pinctrl *pctl = snd_ac97_rst_cfg.pctl;
2112
2113 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_warm_reset);
2114
2115 gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 1);
2116
2117 udelay(10);
2118
2119 gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
2120
2121 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
2122 msleep(2);
2123}
2124
2125static void snd_soc_ac97_reset(struct snd_ac97 *ac97)
2126{
2127 struct pinctrl *pctl = snd_ac97_rst_cfg.pctl;
2128
2129 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_reset);
2130
2131 gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
2132 gpio_direction_output(snd_ac97_rst_cfg.gpio_sdata, 0);
2133 gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 0);
2134
2135 udelay(10);
2136
2137 gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 1);
2138
2139 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
2140 msleep(2);
2141}
2142
2143static int snd_soc_ac97_parse_pinctl(struct device *dev,
2144 struct snd_ac97_reset_cfg *cfg)
2145{
2146 struct pinctrl *p;
2147 struct pinctrl_state *state;
2148 int gpio;
2149 int ret;
2150
2151 p = devm_pinctrl_get(dev);
2152 if (IS_ERR(p)) {
2153 dev_err(dev, "Failed to get pinctrl\n");
2154 return PTR_RET(p);
2155 }
2156 cfg->pctl = p;
2157
2158 state = pinctrl_lookup_state(p, "ac97-reset");
2159 if (IS_ERR(state)) {
2160 dev_err(dev, "Can't find pinctrl state ac97-reset\n");
2161 return PTR_RET(state);
2162 }
2163 cfg->pstate_reset = state;
2164
2165 state = pinctrl_lookup_state(p, "ac97-warm-reset");
2166 if (IS_ERR(state)) {
2167 dev_err(dev, "Can't find pinctrl state ac97-warm-reset\n");
2168 return PTR_RET(state);
2169 }
2170 cfg->pstate_warm_reset = state;
2171
2172 state = pinctrl_lookup_state(p, "ac97-running");
2173 if (IS_ERR(state)) {
2174 dev_err(dev, "Can't find pinctrl state ac97-running\n");
2175 return PTR_RET(state);
2176 }
2177 cfg->pstate_run = state;
2178
2179 gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 0);
2180 if (gpio < 0) {
2181 dev_err(dev, "Can't find ac97-sync gpio\n");
2182 return gpio;
2183 }
2184 ret = devm_gpio_request(dev, gpio, "AC97 link sync");
2185 if (ret) {
2186 dev_err(dev, "Failed requesting ac97-sync gpio\n");
2187 return ret;
2188 }
2189 cfg->gpio_sync = gpio;
2190
2191 gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 1);
2192 if (gpio < 0) {
2193 dev_err(dev, "Can't find ac97-sdata gpio %d\n", gpio);
2194 return gpio;
2195 }
2196 ret = devm_gpio_request(dev, gpio, "AC97 link sdata");
2197 if (ret) {
2198 dev_err(dev, "Failed requesting ac97-sdata gpio\n");
2199 return ret;
2200 }
2201 cfg->gpio_sdata = gpio;
2202
2203 gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 2);
2204 if (gpio < 0) {
2205 dev_err(dev, "Can't find ac97-reset gpio\n");
2206 return gpio;
2207 }
2208 ret = devm_gpio_request(dev, gpio, "AC97 link reset");
2209 if (ret) {
2210 dev_err(dev, "Failed requesting ac97-reset gpio\n");
2211 return ret;
2212 }
2213 cfg->gpio_reset = gpio;
2214
2215 return 0;
2216}
2217
b047e1cc 2218struct snd_ac97_bus_ops *soc_ac97_ops;
f74b5e25 2219EXPORT_SYMBOL_GPL(soc_ac97_ops);
b047e1cc
MB		 2220
2221int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops)
2222{
2223 if (ops == soc_ac97_ops)
2224 return 0;
2225
2226 if (soc_ac97_ops && ops)
2227 return -EBUSY;
2228
2229 soc_ac97_ops = ops;
2230
2231 return 0;
2232}
2233EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops);
2234
741a509f
MP		 2235/**
2236 * snd_soc_set_ac97_ops_of_reset - Set ac97 ops with generic ac97 reset functions
2237 *
2238 * This function sets the reset and warm_reset properties of ops and parses
2239 * the device node of pdev to get pinctrl states and gpio numbers to use.
2240 */
2241int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
2242 struct platform_device *pdev)
2243{
2244 struct device *dev = &pdev->dev;
2245 struct snd_ac97_reset_cfg cfg;
2246 int ret;
2247
2248 ret = snd_soc_ac97_parse_pinctl(dev, &cfg);
2249 if (ret)
2250 return ret;
2251
2252 ret = snd_soc_set_ac97_ops(ops);
2253 if (ret)
2254 return ret;
2255
2256 ops->warm_reset = snd_soc_ac97_warm_reset;
2257 ops->reset = snd_soc_ac97_reset;
2258
2259 snd_ac97_rst_cfg = cfg;
2260 return 0;
2261}
2262EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops_of_reset);
2263
db2a4165
FM		 2264/**
2265 * snd_soc_free_ac97_codec - free AC97 codec device
2266 * @codec: audio codec
2267 *
2268 * Frees AC97 codec device resources.
2269 */
2270void snd_soc_free_ac97_codec(struct snd_soc_codec *codec)
2271{
2272 mutex_lock(&codec->mutex);
f0fba2ad
LG		 2273#ifdef CONFIG_SND_SOC_AC97_BUS
2274 soc_unregister_ac97_dai_link(codec);
2275#endif
db2a4165
FM		 2276 kfree(codec->ac97->bus);
2277 kfree(codec->ac97);
2278 codec->ac97 = NULL;
0562f788 2279 codec->ac97_created = 0;
db2a4165
FM		 2280 mutex_unlock(&codec->mutex);
2281}
2282EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
2283
c3753707
MB		 2284unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg)
2285{
2286 unsigned int ret;
2287
c3acec26 2288 ret = codec->read(codec, reg);
c3753707 2289 dev_dbg(codec->dev, "read %x => %x\n", reg, ret);
a8b1d34f 2290 trace_snd_soc_reg_read(codec, reg, ret);
c3753707
MB		 2291
2292 return ret;
2293}
2294EXPORT_SYMBOL_GPL(snd_soc_read);
2295
2296unsigned int snd_soc_write(struct snd_soc_codec *codec,
2297 unsigned int reg, unsigned int val)
2298{
2299 dev_dbg(codec->dev, "write %x = %x\n", reg, val);
a8b1d34f 2300 trace_snd_soc_reg_write(codec, reg, val);
c3acec26 2301 return codec->write(codec, reg, val);
c3753707
MB		 2302}
2303EXPORT_SYMBOL_GPL(snd_soc_write);
2304
db2a4165
FM		 2305/**
2306 * snd_soc_update_bits - update codec register bits
2307 * @codec: audio codec
2308 * @reg: codec register
2309 * @mask: register mask
2310 * @value: new value
2311 *
2312 * Writes new register value.
2313 *
180c329d 2314 * Returns 1 for change, 0 for no change, or negative error code.
db2a4165
FM		 2315 */
2316int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2317 unsigned int mask, unsigned int value)
db2a4165 2318{
8a713da8 2319 bool change;
46f5822f 2320 unsigned int old, new;
180c329d
TT		 2321 int ret;
2322
8a713da8
MB		 2323 if (codec->using_regmap) {
2324 ret = regmap_update_bits_check(codec->control_data, reg,
2325 mask, value, &change);
2326 } else {
2327 ret = snd_soc_read(codec, reg);
180c329d
TT		 2328 if (ret < 0)
2329 return ret;
8a713da8
MB		 2330
2331 old = ret;
2332 new = (old & ~mask) | (value & mask);
2333 change = old != new;
2334 if (change)
2335 ret = snd_soc_write(codec, reg, new);
180c329d 2336 }
db2a4165 2337
8a713da8
MB		 2338 if (ret < 0)
2339 return ret;
2340
db2a4165
FM		 2341 return change;
2342}
2343EXPORT_SYMBOL_GPL(snd_soc_update_bits);
2344
6c508c62
EN		 2345/**
2346 * snd_soc_update_bits_locked - update codec register bits
2347 * @codec: audio codec
2348 * @reg: codec register
2349 * @mask: register mask
2350 * @value: new value
2351 *
2352 * Writes new register value, and takes the codec mutex.
2353 *
2354 * Returns 1 for change else 0.
2355 */
dd1b3d53
MB		 2356int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
2357 unsigned short reg, unsigned int mask,
2358 unsigned int value)
6c508c62
EN		 2359{
2360 int change;
2361
2362 mutex_lock(&codec->mutex);
2363 change = snd_soc_update_bits(codec, reg, mask, value);
2364 mutex_unlock(&codec->mutex);
2365
2366 return change;
2367}
dd1b3d53 2368EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked);
6c508c62 2369
db2a4165
FM		 2370/**
2371 * snd_soc_test_bits - test register for change
2372 * @codec: audio codec
2373 * @reg: codec register
2374 * @mask: register mask
2375 * @value: new value
2376 *
2377 * Tests a register with a new value and checks if the new value is
2378 * different from the old value.
2379 *
2380 * Returns 1 for change else 0.
2381 */
2382int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2383 unsigned int mask, unsigned int value)
db2a4165
FM		 2384{
2385 int change;
46f5822f 2386 unsigned int old, new;
db2a4165 2387
db2a4165
FM		 2388 old = snd_soc_read(codec, reg);
2389 new = (old & ~mask) | value;
2390 change = old != new;
db2a4165
FM		 2391
2392 return change;
2393}
2394EXPORT_SYMBOL_GPL(snd_soc_test_bits);
2395
db2a4165
FM		 2396/**
2397 * snd_soc_cnew - create new control
2398 * @_template: control template
2399 * @data: control private data
ac11a2b3 2400 * @long_name: control long name
efb7ac3f 2401 * @prefix: control name prefix
db2a4165
FM		 2402 *
2403 * Create a new mixer control from a template control.
2404 *
2405 * Returns 0 for success, else error.
2406 */
2407struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
3056557f 2408 void *data, const char *long_name,
efb7ac3f 2409 const char *prefix)
db2a4165
FM		 2410{
2411 struct snd_kcontrol_new template;
efb7ac3f
MB		 2412 struct snd_kcontrol *kcontrol;
2413 char *name = NULL;
db2a4165
FM		 2414
2415 memcpy(&template, _template, sizeof(template));
db2a4165
FM		 2416 template.index = 0;
2417
efb7ac3f
MB		 2418 if (!long_name)
2419 long_name = template.name;
2420
2421 if (prefix) {
2b581074 2422 name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name);
efb7ac3f
MB		 2423 if (!name)
2424 return NULL;
2425
efb7ac3f
MB		 2426 template.name = name;
2427 } else {
2428 template.name = long_name;
2429 }
2430
2431 kcontrol = snd_ctl_new1(&template, data);
2432
2433 kfree(name);
2434
2435 return kcontrol;
db2a4165
FM		 2436}
2437EXPORT_SYMBOL_GPL(snd_soc_cnew);
2438
022658be
LG		 2439static int snd_soc_add_controls(struct snd_card *card, struct device *dev,
2440 const struct snd_kcontrol_new *controls, int num_controls,
2441 const char *prefix, void *data)
2442{
2443 int err, i;
2444
2445 for (i = 0; i < num_controls; i++) {
2446 const struct snd_kcontrol_new *control = &controls[i];
2447 err = snd_ctl_add(card, snd_soc_cnew(control, data,
2448 control->name, prefix));
2449 if (err < 0) {
f110bfc7
LG		 2450 dev_err(dev, "ASoC: Failed to add %s: %d\n",
2451 control->name, err);
022658be
LG		 2452 return err;
2453 }
2454 }
2455
2456 return 0;
2457}
2458
4fefd698
DP		 2459struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
2460 const char *name)
2461{
2462 struct snd_card *card = soc_card->snd_card;
2463 struct snd_kcontrol *kctl;
2464
2465 if (unlikely(!name))
2466 return NULL;
2467
2468 list_for_each_entry(kctl, &card->controls, list)
2469 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name)))
2470 return kctl;
2471 return NULL;
2472}
2473EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol);
2474
3e8e1952 2475/**
022658be
LG		 2476 * snd_soc_add_codec_controls - add an array of controls to a codec.
2477 * Convenience function to add a list of controls. Many codecs were
3e8e1952
IM		 2478 * duplicating this code.
2479 *
2480 * @codec: codec to add controls to
2481 * @controls: array of controls to add
2482 * @num_controls: number of elements in the array
2483 *
2484 * Return 0 for success, else error.
2485 */
022658be 2486int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
3e8e1952
IM		 2487 const struct snd_kcontrol_new *controls, int num_controls)
2488{
f0fba2ad 2489 struct snd_card *card = codec->card->snd_card;
3e8e1952 2490
022658be
LG		 2491 return snd_soc_add_controls(card, codec->dev, controls, num_controls,
2492 codec->name_prefix, codec);
3e8e1952 2493}
022658be 2494EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
3e8e1952 2495
a491a5c8
LG		 2496/**
2497 * snd_soc_add_platform_controls - add an array of controls to a platform.
022658be 2498 * Convenience function to add a list of controls.
a491a5c8
LG		 2499 *
2500 * @platform: platform to add controls to
2501 * @controls: array of controls to add
2502 * @num_controls: number of elements in the array
2503 *
2504 * Return 0 for success, else error.
2505 */
2506int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
2507 const struct snd_kcontrol_new *controls, int num_controls)
2508{
2509 struct snd_card *card = platform->card->snd_card;
a491a5c8 2510
022658be
LG		 2511 return snd_soc_add_controls(card, platform->dev, controls, num_controls,
2512 NULL, platform);
a491a5c8
LG		 2513}
2514EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
2515
022658be
LG		 2516/**
2517 * snd_soc_add_card_controls - add an array of controls to a SoC card.
2518 * Convenience function to add a list of controls.
2519 *
2520 * @soc_card: SoC card to add controls to
2521 * @controls: array of controls to add
2522 * @num_controls: number of elements in the array
2523 *
2524 * Return 0 for success, else error.
2525 */
2526int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
2527 const struct snd_kcontrol_new *controls, int num_controls)
2528{
2529 struct snd_card *card = soc_card->snd_card;
2530
2531 return snd_soc_add_controls(card, soc_card->dev, controls, num_controls,
2532 NULL, soc_card);
2533}
2534EXPORT_SYMBOL_GPL(snd_soc_add_card_controls);
2535
2536/**
2537 * snd_soc_add_dai_controls - add an array of controls to a DAI.
2538 * Convienience function to add a list of controls.
2539 *
2540 * @dai: DAI to add controls to
2541 * @controls: array of controls to add
2542 * @num_controls: number of elements in the array
2543 *
2544 * Return 0 for success, else error.
2545 */
2546int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
2547 const struct snd_kcontrol_new *controls, int num_controls)
2548{
2549 struct snd_card *card = dai->card->snd_card;
2550
2551 return snd_soc_add_controls(card, dai->dev, controls, num_controls,
2552 NULL, dai);
2553}
2554EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
2555
db2a4165
FM		 2556/**
2557 * snd_soc_info_enum_double - enumerated double mixer info callback
2558 * @kcontrol: mixer control
2559 * @uinfo: control element information
2560 *
2561 * Callback to provide information about a double enumerated
2562 * mixer control.
2563 *
2564 * Returns 0 for success.
2565 */
2566int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
2567 struct snd_ctl_elem_info *uinfo)
2568{
2569 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2570
2571 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2572 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
f8ba0b7b 2573 uinfo->value.enumerated.items = e->max;
db2a4165 2574
f8ba0b7b
JS		 2575 if (uinfo->value.enumerated.item > e->max - 1)
2576 uinfo->value.enumerated.item = e->max - 1;
a19685cb
TI		 2577 strlcpy(uinfo->value.enumerated.name,
2578 e->texts[uinfo->value.enumerated.item],
2579 sizeof(uinfo->value.enumerated.name));
db2a4165
FM		 2580 return 0;
2581}
2582EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
2583
2584/**
2585 * snd_soc_get_enum_double - enumerated double mixer get callback
2586 * @kcontrol: mixer control
ac11a2b3 2587 * @ucontrol: control element information
db2a4165
FM		 2588 *
2589 * Callback to get the value of a double enumerated mixer.
2590 *
2591 * Returns 0 for success.
2592 */
2593int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
2594 struct snd_ctl_elem_value *ucontrol)
2595{
2596 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2597 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
86767b7d 2598 unsigned int val;
db2a4165 2599
db2a4165 2600 val = snd_soc_read(codec, e->reg);
3ff3f64b 2601 ucontrol->value.enumerated.item[0]
86767b7d 2602 = (val >> e->shift_l) & e->mask;
db2a4165
FM		 2603 if (e->shift_l != e->shift_r)
2604 ucontrol->value.enumerated.item[1] =
86767b7d 2605 (val >> e->shift_r) & e->mask;
db2a4165
FM		 2606
2607 return 0;
2608}
2609EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
2610
2611/**
2612 * snd_soc_put_enum_double - enumerated double mixer put callback
2613 * @kcontrol: mixer control
ac11a2b3 2614 * @ucontrol: control element information
db2a4165
FM		 2615 *
2616 * Callback to set the value of a double enumerated mixer.
2617 *
2618 * Returns 0 for success.
2619 */
2620int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
2621 struct snd_ctl_elem_value *ucontrol)
2622{
2623 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2624 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2625 unsigned int val;
86767b7d 2626 unsigned int mask;
db2a4165 2627
f8ba0b7b 2628 if (ucontrol->value.enumerated.item[0] > e->max - 1)
db2a4165
FM		 2629 return -EINVAL;
2630 val = ucontrol->value.enumerated.item[0] << e->shift_l;
86767b7d 2631 mask = e->mask << e->shift_l;
db2a4165 2632 if (e->shift_l != e->shift_r) {
f8ba0b7b 2633 if (ucontrol->value.enumerated.item[1] > e->max - 1)
db2a4165
FM		 2634 return -EINVAL;
2635 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
86767b7d 2636 mask |= e->mask << e->shift_r;
db2a4165
FM		 2637 }
2638
6c508c62 2639 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
db2a4165
FM		 2640}
2641EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
2642
2e72f8e3
PU		 2643/**
2644 * snd_soc_get_value_enum_double - semi enumerated double mixer get callback
2645 * @kcontrol: mixer control
2646 * @ucontrol: control element information
2647 *
2648 * Callback to get the value of a double semi enumerated mixer.
2649 *
2650 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2651 * used for handling bitfield coded enumeration for example.
2652 *
2653 * Returns 0 for success.
2654 */
2655int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
2656 struct snd_ctl_elem_value *ucontrol)
2657{
2658 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2659 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2660 unsigned int reg_val, val, mux;
2e72f8e3
PU		 2661
2662 reg_val = snd_soc_read(codec, e->reg);
2663 val = (reg_val >> e->shift_l) & e->mask;
2664 for (mux = 0; mux < e->max; mux++) {
2665 if (val == e->values[mux])
2666 break;
2667 }
2668 ucontrol->value.enumerated.item[0] = mux;
2669 if (e->shift_l != e->shift_r) {
2670 val = (reg_val >> e->shift_r) & e->mask;
2671 for (mux = 0; mux < e->max; mux++) {
2672 if (val == e->values[mux])
2673 break;
2674 }
2675 ucontrol->value.enumerated.item[1] = mux;
2676 }
2677
2678 return 0;
2679}
2680EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double);
2681
2682/**
2683 * snd_soc_put_value_enum_double - semi enumerated double mixer put callback
2684 * @kcontrol: mixer control
2685 * @ucontrol: control element information
2686 *
2687 * Callback to set the value of a double semi enumerated mixer.
2688 *
2689 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2690 * used for handling bitfield coded enumeration for example.
2691 *
2692 * Returns 0 for success.
2693 */
2694int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
2695 struct snd_ctl_elem_value *ucontrol)
2696{
2697 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2698 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f
DR		 2699 unsigned int val;
2700 unsigned int mask;
2e72f8e3
PU		 2701
2702 if (ucontrol->value.enumerated.item[0] > e->max - 1)
2703 return -EINVAL;
2704 val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
2705 mask = e->mask << e->shift_l;
2706 if (e->shift_l != e->shift_r) {
2707 if (ucontrol->value.enumerated.item[1] > e->max - 1)
2708 return -EINVAL;
2709 val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
2710 mask |= e->mask << e->shift_r;
2711 }
2712
6c508c62 2713 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
2e72f8e3
PU		 2714}
2715EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double);
2716
db2a4165
FM		 2717/**
2718 * snd_soc_info_volsw - single mixer info callback
2719 * @kcontrol: mixer control
2720 * @uinfo: control element information
2721 *
e8f5a103
PU		 2722 * Callback to provide information about a single mixer control, or a double
2723 * mixer control that spans 2 registers.
db2a4165
FM		 2724 *
2725 * Returns 0 for success.
2726 */
2727int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
2728 struct snd_ctl_elem_info *uinfo)
2729{
4eaa9819
JS		 2730 struct soc_mixer_control *mc =
2731 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2732 int platform_max;
db2a4165 2733
d11bb4a9
PU		 2734 if (!mc->platform_max)
2735 mc->platform_max = mc->max;
2736 platform_max = mc->platform_max;
2737
2738 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
a7a4ac86
PZ		 2739 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2740 else
2741 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2742
e8f5a103 2743 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
db2a4165 2744 uinfo->value.integer.min = 0;
d11bb4a9 2745 uinfo->value.integer.max = platform_max;
db2a4165
FM		 2746 return 0;
2747}
2748EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
2749
2750/**
2751 * snd_soc_get_volsw - single mixer get callback
2752 * @kcontrol: mixer control
ac11a2b3 2753 * @ucontrol: control element information
db2a4165 2754 *
f7915d99
PU		 2755 * Callback to get the value of a single mixer control, or a double mixer
2756 * control that spans 2 registers.
db2a4165
FM		 2757 *
2758 * Returns 0 for success.
2759 */
2760int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
2761 struct snd_ctl_elem_value *ucontrol)
2762{
4eaa9819
JS		 2763 struct soc_mixer_control *mc =
2764 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2765 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2766 unsigned int reg = mc->reg;
f7915d99 2767 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2768 unsigned int shift = mc->shift;
2769 unsigned int rshift = mc->rshift;
4eaa9819 2770 int max = mc->max;
815ecf8d
JS		 2771 unsigned int mask = (1 << fls(max)) - 1;
2772 unsigned int invert = mc->invert;
db2a4165
FM		 2773
2774 ucontrol->value.integer.value[0] =
2775 (snd_soc_read(codec, reg) >> shift) & mask;
f7915d99 2776 if (invert)
db2a4165 2777 ucontrol->value.integer.value[0] =
a7a4ac86 2778 max - ucontrol->value.integer.value[0];
f7915d99
PU		 2779
2780 if (snd_soc_volsw_is_stereo(mc)) {
2781 if (reg == reg2)
2782 ucontrol->value.integer.value[1] =
2783 (snd_soc_read(codec, reg) >> rshift) & mask;
2784 else
2785 ucontrol->value.integer.value[1] =
2786 (snd_soc_read(codec, reg2) >> shift) & mask;
2787 if (invert)
db2a4165 2788 ucontrol->value.integer.value[1] =
a7a4ac86 2789 max - ucontrol->value.integer.value[1];
db2a4165
FM		 2790 }
2791
2792 return 0;
2793}
2794EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
2795
2796/**
2797 * snd_soc_put_volsw - single mixer put callback
2798 * @kcontrol: mixer control
ac11a2b3 2799 * @ucontrol: control element information
db2a4165 2800 *
974815ba
PU		 2801 * Callback to set the value of a single mixer control, or a double mixer
2802 * control that spans 2 registers.
db2a4165
FM		 2803 *
2804 * Returns 0 for success.
2805 */
2806int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
2807 struct snd_ctl_elem_value *ucontrol)
2808{
4eaa9819
JS		 2809 struct soc_mixer_control *mc =
2810 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2811 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2812 unsigned int reg = mc->reg;
974815ba 2813 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2814 unsigned int shift = mc->shift;
2815 unsigned int rshift = mc->rshift;
4eaa9819 2816 int max = mc->max;
815ecf8d
JS		 2817 unsigned int mask = (1 << fls(max)) - 1;
2818 unsigned int invert = mc->invert;
974815ba
PU		 2819 int err;
2820 bool type_2r = 0;
2821 unsigned int val2 = 0;
2822 unsigned int val, val_mask;
db2a4165
FM		 2823
2824 val = (ucontrol->value.integer.value[0] & mask);
2825 if (invert)
a7a4ac86 2826 val = max - val;
db2a4165
FM		 2827 val_mask = mask << shift;
2828 val = val << shift;
974815ba 2829 if (snd_soc_volsw_is_stereo(mc)) {
db2a4165
FM		 2830 val2 = (ucontrol->value.integer.value[1] & mask);
2831 if (invert)
a7a4ac86 2832 val2 = max - val2;
974815ba
PU		 2833 if (reg == reg2) {
2834 val_mask |= mask << rshift;
2835 val |= val2 << rshift;
2836 } else {
2837 val2 = val2 << shift;
2838 type_2r = 1;
2839 }
db2a4165 2840 }
6c508c62 2841 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
3ff3f64b 2842 if (err < 0)
db2a4165
FM		 2843 return err;
2844
974815ba
PU		 2845 if (type_2r)
2846 err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2);
2847
db2a4165
FM		 2848 return err;
2849}
974815ba 2850EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
db2a4165 2851
1d99f243
BA		 2852/**
2853 * snd_soc_get_volsw_sx - single mixer get callback
2854 * @kcontrol: mixer control
2855 * @ucontrol: control element information
2856 *
2857 * Callback to get the value of a single mixer control, or a double mixer
2858 * control that spans 2 registers.
2859 *
2860 * Returns 0 for success.
2861 */
2862int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
2863 struct snd_ctl_elem_value *ucontrol)
2864{
2865 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2866 struct soc_mixer_control *mc =
2867 (struct soc_mixer_control *)kcontrol->private_value;
2868
2869 unsigned int reg = mc->reg;
2870 unsigned int reg2 = mc->rreg;
2871 unsigned int shift = mc->shift;
2872 unsigned int rshift = mc->rshift;
2873 int max = mc->max;
2874 int min = mc->min;
2875 int mask = (1 << (fls(min + max) - 1)) - 1;
2876
2877 ucontrol->value.integer.value[0] =
2878 ((snd_soc_read(codec, reg) >> shift) - min) & mask;
2879
2880 if (snd_soc_volsw_is_stereo(mc))
2881 ucontrol->value.integer.value[1] =
2882 ((snd_soc_read(codec, reg2) >> rshift) - min) & mask;
2883
2884 return 0;
2885}
2886EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
2887
2888/**
2889 * snd_soc_put_volsw_sx - double mixer set callback
2890 * @kcontrol: mixer control
2891 * @uinfo: control element information
2892 *
2893 * Callback to set the value of a double mixer control that spans 2 registers.
2894 *
2895 * Returns 0 for success.
2896 */
2897int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
2898 struct snd_ctl_elem_value *ucontrol)
2899{
2900 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2901 struct soc_mixer_control *mc =
2902 (struct soc_mixer_control *)kcontrol->private_value;
2903
2904 unsigned int reg = mc->reg;
2905 unsigned int reg2 = mc->rreg;
2906 unsigned int shift = mc->shift;
2907 unsigned int rshift = mc->rshift;
2908 int max = mc->max;
2909 int min = mc->min;
2910 int mask = (1 << (fls(min + max) - 1)) - 1;
27f1d759 2911 int err = 0;
1d99f243
BA		 2912 unsigned short val, val_mask, val2 = 0;
2913
2914 val_mask = mask << shift;
2915 val = (ucontrol->value.integer.value[0] + min) & mask;
2916 val = val << shift;
2917
d055852e
MN		 2918 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
2919 if (err < 0)
2920 return err;
1d99f243
BA		 2921
2922 if (snd_soc_volsw_is_stereo(mc)) {
2923 val_mask = mask << rshift;
2924 val2 = (ucontrol->value.integer.value[1] + min) & mask;
2925 val2 = val2 << rshift;
2926
2927 if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2))
2928 return err;
2929 }
2930 return 0;
2931}
2932EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
2933
e13ac2e9
MB		 2934/**
2935 * snd_soc_info_volsw_s8 - signed mixer info callback
2936 * @kcontrol: mixer control
2937 * @uinfo: control element information
2938 *
2939 * Callback to provide information about a signed mixer control.
2940 *
2941 * Returns 0 for success.
2942 */
2943int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
2944 struct snd_ctl_elem_info *uinfo)
2945{
4eaa9819
JS		 2946 struct soc_mixer_control *mc =
2947 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2948 int platform_max;
4eaa9819 2949 int min = mc->min;
e13ac2e9 2950
d11bb4a9
PU		 2951 if (!mc->platform_max)
2952 mc->platform_max = mc->max;
2953 platform_max = mc->platform_max;
2954
e13ac2e9
MB		 2955 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2956 uinfo->count = 2;
2957 uinfo->value.integer.min = 0;
d11bb4a9 2958 uinfo->value.integer.max = platform_max - min;
e13ac2e9
MB		 2959 return 0;
2960}
2961EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
2962
2963/**
2964 * snd_soc_get_volsw_s8 - signed mixer get callback
2965 * @kcontrol: mixer control
ac11a2b3 2966 * @ucontrol: control element information
e13ac2e9
MB		 2967 *
2968 * Callback to get the value of a signed mixer control.
2969 *
2970 * Returns 0 for success.
2971 */
2972int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
2973 struct snd_ctl_elem_value *ucontrol)
2974{
4eaa9819
JS		 2975 struct soc_mixer_control *mc =
2976 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 2977 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2978 unsigned int reg = mc->reg;
4eaa9819 2979 int min = mc->min;
e13ac2e9
MB		 2980 int val = snd_soc_read(codec, reg);
2981
2982 ucontrol->value.integer.value[0] =
2983 ((signed char)(val & 0xff))-min;
2984 ucontrol->value.integer.value[1] =
2985 ((signed char)((val >> 8) & 0xff))-min;
2986 return 0;
2987}
2988EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8);
2989
2990/**
2991 * snd_soc_put_volsw_sgn - signed mixer put callback
2992 * @kcontrol: mixer control
ac11a2b3 2993 * @ucontrol: control element information
e13ac2e9
MB		 2994 *
2995 * Callback to set the value of a signed mixer control.
2996 *
2997 * Returns 0 for success.
2998 */
2999int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
3000 struct snd_ctl_elem_value *ucontrol)
3001{
4eaa9819
JS		 3002 struct soc_mixer_control *mc =
3003 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 3004 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 3005 unsigned int reg = mc->reg;
4eaa9819 3006 int min = mc->min;
46f5822f 3007 unsigned int val;
e13ac2e9
MB		 3008
3009 val = (ucontrol->value.integer.value[0]+min) & 0xff;
3010 val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8;
3011
6c508c62 3012 return snd_soc_update_bits_locked(codec, reg, 0xffff, val);
e13ac2e9
MB		 3013}
3014EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
3015
6c9d8cf6
AT		 3016/**
3017 * snd_soc_info_volsw_range - single mixer info callback with range.
3018 * @kcontrol: mixer control
3019 * @uinfo: control element information
3020 *
3021 * Callback to provide information, within a range, about a single
3022 * mixer control.
3023 *
3024 * returns 0 for success.
3025 */
3026int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
3027 struct snd_ctl_elem_info *uinfo)
3028{
3029 struct soc_mixer_control *mc =
3030 (struct soc_mixer_control *)kcontrol->private_value;
3031 int platform_max;
3032 int min = mc->min;
3033
3034 if (!mc->platform_max)
3035 mc->platform_max = mc->max;
3036 platform_max = mc->platform_max;
3037
3038 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
9bde4f0b 3039 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
6c9d8cf6
AT		 3040 uinfo->value.integer.min = 0;
3041 uinfo->value.integer.max = platform_max - min;
3042
3043 return 0;
3044}
3045EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
3046
3047/**
3048 * snd_soc_put_volsw_range - single mixer put value callback with range.
3049 * @kcontrol: mixer control
3050 * @ucontrol: control element information
3051 *
3052 * Callback to set the value, within a range, for a single mixer control.
3053 *
3054 * Returns 0 for success.
3055 */
3056int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
3057 struct snd_ctl_elem_value *ucontrol)
3058{
3059 struct soc_mixer_control *mc =
3060 (struct soc_mixer_control *)kcontrol->private_value;
3061 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3062 unsigned int reg = mc->reg;
9bde4f0b 3063 unsigned int rreg = mc->rreg;
6c9d8cf6
AT		 3064 unsigned int shift = mc->shift;
3065 int min = mc->min;
3066 int max = mc->max;
3067 unsigned int mask = (1 << fls(max)) - 1;
3068 unsigned int invert = mc->invert;
3069 unsigned int val, val_mask;
9bde4f0b 3070 int ret;
6c9d8cf6
AT		 3071
3072 val = ((ucontrol->value.integer.value[0] + min) & mask);
3073 if (invert)
3074 val = max - val;
3075 val_mask = mask << shift;
3076 val = val << shift;
3077
9bde4f0b 3078 ret = snd_soc_update_bits_locked(codec, reg, val_mask, val);
0eaa6cca 3079 if (ret < 0)
9bde4f0b
MB		 3080 return ret;
3081
3082 if (snd_soc_volsw_is_stereo(mc)) {
3083 val = ((ucontrol->value.integer.value[1] + min) & mask);
3084 if (invert)
3085 val = max - val;
3086 val_mask = mask << shift;
3087 val = val << shift;
3088
3089 ret = snd_soc_update_bits_locked(codec, rreg, val_mask, val);
3090 }
3091
3092 return ret;
6c9d8cf6
AT		 3093}
3094EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
3095
3096/**
3097 * snd_soc_get_volsw_range - single mixer get callback with range
3098 * @kcontrol: mixer control
3099 * @ucontrol: control element information
3100 *
3101 * Callback to get the value, within a range, of a single mixer control.
3102 *
3103 * Returns 0 for success.
3104 */
3105int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
3106 struct snd_ctl_elem_value *ucontrol)
3107{
3108 struct soc_mixer_control *mc =
3109 (struct soc_mixer_control *)kcontrol->private_value;
3110 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3111 unsigned int reg = mc->reg;
9bde4f0b 3112 unsigned int rreg = mc->rreg;
6c9d8cf6
AT		 3113 unsigned int shift = mc->shift;
3114 int min = mc->min;
3115 int max = mc->max;
3116 unsigned int mask = (1 << fls(max)) - 1;
3117 unsigned int invert = mc->invert;
3118
3119 ucontrol->value.integer.value[0] =
3120 (snd_soc_read(codec, reg) >> shift) & mask;
3121 if (invert)
3122 ucontrol->value.integer.value[0] =
3123 max - ucontrol->value.integer.value[0];
3124 ucontrol->value.integer.value[0] =
3125 ucontrol->value.integer.value[0] - min;
3126
9bde4f0b
MB		 3127 if (snd_soc_volsw_is_stereo(mc)) {
3128 ucontrol->value.integer.value[1] =
3129 (snd_soc_read(codec, rreg) >> shift) & mask;
3130 if (invert)
3131 ucontrol->value.integer.value[1] =
3132 max - ucontrol->value.integer.value[1];
3133 ucontrol->value.integer.value[1] =
3134 ucontrol->value.integer.value[1] - min;
3135 }
3136
6c9d8cf6
AT		 3137 return 0;
3138}
3139EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
3140
637d3847
PU		 3141/**
3142 * snd_soc_limit_volume - Set new limit to an existing volume control.
3143 *
3144 * @codec: where to look for the control
3145 * @name: Name of the control
3146 * @max: new maximum limit
3147 *
3148 * Return 0 for success, else error.
3149 */
3150int snd_soc_limit_volume(struct snd_soc_codec *codec,
3151 const char *name, int max)
3152{
f0fba2ad 3153 struct snd_card *card = codec->card->snd_card;
637d3847
PU		 3154 struct snd_kcontrol *kctl;
3155 struct soc_mixer_control *mc;
3156 int found = 0;
3157 int ret = -EINVAL;
3158
3159 /* Sanity check for name and max */
3160 if (unlikely(!name || max <= 0))
3161 return -EINVAL;
3162
3163 list_for_each_entry(kctl, &card->controls, list) {
3164 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
3165 found = 1;
3166 break;
3167 }
3168 }
3169 if (found) {
3170 mc = (struct soc_mixer_control *)kctl->private_value;
3171 if (max <= mc->max) {
d11bb4a9 3172 mc->platform_max = max;
637d3847
PU		 3173 ret = 0;
3174 }
3175 }
3176 return ret;
3177}
3178EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
3179
71d08516
MB		 3180int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
3181 struct snd_ctl_elem_info *uinfo)
3182{
3183 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3184 struct soc_bytes *params = (void *)kcontrol->private_value;
3185
3186 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
3187 uinfo->count = params->num_regs * codec->val_bytes;
3188
3189 return 0;
3190}
3191EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
3192
3193int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
3194 struct snd_ctl_elem_value *ucontrol)
3195{
3196 struct soc_bytes *params = (void *)kcontrol->private_value;
3197 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3198 int ret;
3199
3200 if (codec->using_regmap)
3201 ret = regmap_raw_read(codec->control_data, params->base,
3202 ucontrol->value.bytes.data,
3203 params->num_regs * codec->val_bytes);
3204 else
3205 ret = -EINVAL;
3206
f831b055
MB		 3207 /* Hide any masked bytes to ensure consistent data reporting */
3208 if (ret == 0 && params->mask) {
3209 switch (codec->val_bytes) {
3210 case 1:
3211 ucontrol->value.bytes.data[0] &= ~params->mask;
3212 break;
3213 case 2:
3214 ((u16 *)(&ucontrol->value.bytes.data))[0]
3215 &= ~params->mask;
3216 break;
3217 case 4:
3218 ((u32 *)(&ucontrol->value.bytes.data))[0]
3219 &= ~params->mask;
3220 break;
3221 default:
3222 return -EINVAL;
3223 }
3224 }
3225
71d08516
MB		 3226 return ret;
3227}
3228EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
3229
3230int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
3231 struct snd_ctl_elem_value *ucontrol)
3232{
3233 struct soc_bytes *params = (void *)kcontrol->private_value;
3234 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
f831b055
MB		 3235 int ret, len;
3236 unsigned int val;
3237 void *data;
71d08516 3238
f831b055
MB		 3239 if (!codec->using_regmap)
3240 return -EINVAL;
3241
f831b055
MB		 3242 len = params->num_regs * codec->val_bytes;
3243
b5a8fe43
MB		 3244 data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
3245 if (!data)
3246 return -ENOMEM;
3247
f831b055
MB		 3248 /*
3249 * If we've got a mask then we need to preserve the register
3250 * bits. We shouldn't modify the incoming data so take a
3251 * copy.
3252 */
3253 if (params->mask) {
3254 ret = regmap_read(codec->control_data, params->base, &val);
3255 if (ret != 0)
e8b18add 3256 goto out;
f831b055
MB		 3257
3258 val &= params->mask;
3259
f831b055
MB		 3260 switch (codec->val_bytes) {
3261 case 1:
3262 ((u8 *)data)[0] &= ~params->mask;
3263 ((u8 *)data)[0] |= val;
3264 break;
3265 case 2:
3266 ((u16 *)data)[0] &= cpu_to_be16(~params->mask);
3267 ((u16 *)data)[0] |= cpu_to_be16(val);
3268 break;
3269 case 4:
3270 ((u32 *)data)[0] &= cpu_to_be32(~params->mask);
3271 ((u32 *)data)[0] |= cpu_to_be32(val);
3272 break;
3273 default:
e8b18add
WY		 3274 ret = -EINVAL;
3275 goto out;
f831b055
MB		 3276 }
3277 }
3278
3279 ret = regmap_raw_write(codec->control_data, params->base,
3280 data, len);
3281
e8b18add 3282out:
b5a8fe43 3283 kfree(data);
71d08516
MB		 3284
3285 return ret;
3286}
3287EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
3288
4183eed2
KK		 3289/**
3290 * snd_soc_info_xr_sx - signed multi register info callback
3291 * @kcontrol: mreg control
3292 * @uinfo: control element information
3293 *
3294 * Callback to provide information of a control that can
3295 * span multiple codec registers which together
3296 * forms a single signed value in a MSB/LSB manner.
3297 *
3298 * Returns 0 for success.
3299 */
3300int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
3301 struct snd_ctl_elem_info *uinfo)
3302{
3303 struct soc_mreg_control *mc =
3304 (struct soc_mreg_control *)kcontrol->private_value;
3305 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3306 uinfo->count = 1;
3307 uinfo->value.integer.min = mc->min;
3308 uinfo->value.integer.max = mc->max;
3309
3310 return 0;
3311}
3312EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx);
3313
3314/**
3315 * snd_soc_get_xr_sx - signed multi register get callback
3316 * @kcontrol: mreg control
3317 * @ucontrol: control element information
3318 *
3319 * Callback to get the value of a control that can span
3320 * multiple codec registers which together forms a single
3321 * signed value in a MSB/LSB manner. The control supports
3322 * specifying total no of bits used to allow for bitfields
3323 * across the multiple codec registers.
3324 *
3325 * Returns 0 for success.
3326 */
3327int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
3328 struct snd_ctl_elem_value *ucontrol)
3329{
3330 struct soc_mreg_control *mc =
3331 (struct soc_mreg_control *)kcontrol->private_value;
3332 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3333 unsigned int regbase = mc->regbase;
3334 unsigned int regcount = mc->regcount;
3335 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3336 unsigned int regwmask = (1<<regwshift)-1;
3337 unsigned int invert = mc->invert;
3338 unsigned long mask = (1UL<<mc->nbits)-1;
3339 long min = mc->min;
3340 long max = mc->max;
3341 long val = 0;
3342 unsigned long regval;
3343 unsigned int i;
3344
3345 for (i = 0; i < regcount; i++) {
3346 regval = snd_soc_read(codec, regbase+i) & regwmask;
3347 val |= regval << (regwshift*(regcount-i-1));
3348 }
3349 val &= mask;
3350 if (min < 0 && val > max)
3351 val |= ~mask;
3352 if (invert)
3353 val = max - val;
3354 ucontrol->value.integer.value[0] = val;
3355
3356 return 0;
3357}
3358EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
3359
3360/**
3361 * snd_soc_put_xr_sx - signed multi register get callback
3362 * @kcontrol: mreg control
3363 * @ucontrol: control element information
3364 *
3365 * Callback to set the value of a control that can span
3366 * multiple codec registers which together forms a single
3367 * signed value in a MSB/LSB manner. The control supports
3368 * specifying total no of bits used to allow for bitfields
3369 * across the multiple codec registers.
3370 *
3371 * Returns 0 for success.
3372 */
3373int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
3374 struct snd_ctl_elem_value *ucontrol)
3375{
3376 struct soc_mreg_control *mc =
3377 (struct soc_mreg_control *)kcontrol->private_value;
3378 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3379 unsigned int regbase = mc->regbase;
3380 unsigned int regcount = mc->regcount;
3381 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3382 unsigned int regwmask = (1<<regwshift)-1;
3383 unsigned int invert = mc->invert;
3384 unsigned long mask = (1UL<<mc->nbits)-1;
4183eed2
KK		 3385 long max = mc->max;
3386 long val = ucontrol->value.integer.value[0];
3387 unsigned int i, regval, regmask;
3388 int err;
3389
3390 if (invert)
3391 val = max - val;
3392 val &= mask;
3393 for (i = 0; i < regcount; i++) {
3394 regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
3395 regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
3396 err = snd_soc_update_bits_locked(codec, regbase+i,
3397 regmask, regval);
3398 if (err < 0)
3399 return err;
3400 }
3401
3402 return 0;
3403}
3404EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
3405
dd7b10b3
KK		 3406/**
3407 * snd_soc_get_strobe - strobe get callback
3408 * @kcontrol: mixer control
3409 * @ucontrol: control element information
3410 *
3411 * Callback get the value of a strobe mixer control.
3412 *
3413 * Returns 0 for success.
3414 */
3415int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
3416 struct snd_ctl_elem_value *ucontrol)
3417{
3418 struct soc_mixer_control *mc =
3419 (struct soc_mixer_control *)kcontrol->private_value;
3420 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3421 unsigned int reg = mc->reg;
3422 unsigned int shift = mc->shift;
3423 unsigned int mask = 1 << shift;
3424 unsigned int invert = mc->invert != 0;
3425 unsigned int val = snd_soc_read(codec, reg) & mask;
3426
3427 if (shift != 0 && val != 0)
3428 val = val >> shift;
3429 ucontrol->value.enumerated.item[0] = val ^ invert;
3430
3431 return 0;
3432}
3433EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
3434
3435/**
3436 * snd_soc_put_strobe - strobe put callback
3437 * @kcontrol: mixer control
3438 * @ucontrol: control element information
3439 *
3440 * Callback strobe a register bit to high then low (or the inverse)
3441 * in one pass of a single mixer enum control.
3442 *
3443 * Returns 1 for success.
3444 */
3445int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
3446 struct snd_ctl_elem_value *ucontrol)
3447{
3448 struct soc_mixer_control *mc =
3449 (struct soc_mixer_control *)kcontrol->private_value;
3450 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3451 unsigned int reg = mc->reg;
3452 unsigned int shift = mc->shift;
3453 unsigned int mask = 1 << shift;
3454 unsigned int invert = mc->invert != 0;
3455 unsigned int strobe = ucontrol->value.enumerated.item[0] != 0;
3456 unsigned int val1 = (strobe ^ invert) ? mask : 0;
3457 unsigned int val2 = (strobe ^ invert) ? 0 : mask;
3458 int err;
3459
3460 err = snd_soc_update_bits_locked(codec, reg, mask, val1);
3461 if (err < 0)
3462 return err;
3463
3464 err = snd_soc_update_bits_locked(codec, reg, mask, val2);
3465 return err;
3466}
3467EXPORT_SYMBOL_GPL(snd_soc_put_strobe);
3468
8c6529db
LG		 3469/**
3470 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
3471 * @dai: DAI
3472 * @clk_id: DAI specific clock ID
3473 * @freq: new clock frequency in Hz
3474 * @dir: new clock direction - input/output.
3475 *
3476 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
3477 */
3478int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
3479 unsigned int freq, int dir)
3480{
f0fba2ad
LG		 3481 if (dai->driver && dai->driver->ops->set_sysclk)
3482 return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
ec4ee52a 3483 else if (dai->codec && dai->codec->driver->set_sysclk)
da1c6ea6 3484 return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0,
ec4ee52a 3485 freq, dir);
8c6529db
LG		 3486 else
3487 return -EINVAL;
3488}
3489EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
3490
ec4ee52a
MB		 3491/**
3492 * snd_soc_codec_set_sysclk - configure CODEC system or master clock.
3493 * @codec: CODEC
3494 * @clk_id: DAI specific clock ID
da1c6ea6 3495 * @source: Source for the clock
ec4ee52a
MB		 3496 * @freq: new clock frequency in Hz
3497 * @dir: new clock direction - input/output.
3498 *
3499 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
3500 */
3501int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
da1c6ea6 3502 int source, unsigned int freq, int dir)
ec4ee52a
MB		 3503{
3504 if (codec->driver->set_sysclk)
da1c6ea6
MB		 3505 return codec->driver->set_sysclk(codec, clk_id, source,
3506 freq, dir);
ec4ee52a
MB		 3507 else
3508 return -EINVAL;
3509}
3510EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk);
3511
8c6529db
LG		 3512/**
3513 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
3514 * @dai: DAI
ac11a2b3 3515 * @div_id: DAI specific clock divider ID
8c6529db
LG		 3516 * @div: new clock divisor.
3517 *
3518 * Configures the clock dividers. This is used to derive the best DAI bit and
3519 * frame clocks from the system or master clock. It's best to set the DAI bit
3520 * and frame clocks as low as possible to save system power.
3521 */
3522int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
3523 int div_id, int div)
3524{
f0fba2ad
LG		 3525 if (dai->driver && dai->driver->ops->set_clkdiv)
3526 return dai->driver->ops->set_clkdiv(dai, div_id, div);
8c6529db
LG		 3527 else
3528 return -EINVAL;
3529}
3530EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
3531
3532/**
3533 * snd_soc_dai_set_pll - configure DAI PLL.
3534 * @dai: DAI
3535 * @pll_id: DAI specific PLL ID
85488037 3536 * @source: DAI specific source for the PLL
8c6529db
LG		 3537 * @freq_in: PLL input clock frequency in Hz
3538 * @freq_out: requested PLL output clock frequency in Hz
3539 *
3540 * Configures and enables PLL to generate output clock based on input clock.
3541 */
85488037
MB		 3542int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
3543 unsigned int freq_in, unsigned int freq_out)
8c6529db 3544{
f0fba2ad
LG		 3545 if (dai->driver && dai->driver->ops->set_pll)
3546 return dai->driver->ops->set_pll(dai, pll_id, source,
85488037 3547 freq_in, freq_out);
ec4ee52a
MB		 3548 else if (dai->codec && dai->codec->driver->set_pll)
3549 return dai->codec->driver->set_pll(dai->codec, pll_id, source,
3550 freq_in, freq_out);
8c6529db
LG		 3551 else
3552 return -EINVAL;
3553}
3554EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
3555
ec4ee52a
MB		 3556/*
3557 * snd_soc_codec_set_pll - configure codec PLL.
3558 * @codec: CODEC
3559 * @pll_id: DAI specific PLL ID
3560 * @source: DAI specific source for the PLL
3561 * @freq_in: PLL input clock frequency in Hz
3562 * @freq_out: requested PLL output clock frequency in Hz
3563 *
3564 * Configures and enables PLL to generate output clock based on input clock.
3565 */
3566int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
3567 unsigned int freq_in, unsigned int freq_out)
3568{
3569 if (codec->driver->set_pll)
3570 return codec->driver->set_pll(codec, pll_id, source,
3571 freq_in, freq_out);
3572 else
3573 return -EINVAL;
3574}
3575EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll);
3576
e54cf76b
LG		 3577/**
3578 * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
3579 * @dai: DAI
3580 * @ratio Ratio of BCLK to Sample rate.
3581 *
3582 * Configures the DAI for a preset BCLK to sample rate ratio.
3583 */
3584int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
3585{
3586 if (dai->driver && dai->driver->ops->set_bclk_ratio)
3587 return dai->driver->ops->set_bclk_ratio(dai, ratio);
3588 else
3589 return -EINVAL;
3590}
3591EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);
3592
8c6529db
LG		 3593/**
3594 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
3595 * @dai: DAI
8c6529db
LG		 3596 * @fmt: SND_SOC_DAIFMT_ format value.
3597 *
3598 * Configures the DAI hardware format and clocking.
3599 */
3600int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
3601{
5e4ba569 3602 if (dai->driver == NULL)
8c6529db 3603 return -EINVAL;
5e4ba569
SG		 3604 if (dai->driver->ops->set_fmt == NULL)
3605 return -ENOTSUPP;
3606 return dai->driver->ops->set_fmt(dai, fmt);
8c6529db
LG		 3607}
3608EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
3609
3610/**
3611 * snd_soc_dai_set_tdm_slot - configure DAI TDM.
3612 * @dai: DAI
a5479e38
DR		 3613 * @tx_mask: bitmask representing active TX slots.
3614 * @rx_mask: bitmask representing active RX slots.
8c6529db 3615 * @slots: Number of slots in use.
a5479e38 3616 * @slot_width: Width in bits for each slot.
8c6529db
LG		 3617 *
3618 * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
3619 * specific.
3620 */
3621int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
a5479e38 3622 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
8c6529db 3623{
f0fba2ad
LG		 3624 if (dai->driver && dai->driver->ops->set_tdm_slot)
3625 return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
a5479e38 3626 slots, slot_width);
8c6529db
LG		 3627 else
3628 return -EINVAL;
3629}
3630EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
3631
472df3cb
BS		 3632/**
3633 * snd_soc_dai_set_channel_map - configure DAI audio channel map
3634 * @dai: DAI
3635 * @tx_num: how many TX channels
3636 * @tx_slot: pointer to an array which imply the TX slot number channel
3637 * 0~num-1 uses
3638 * @rx_num: how many RX channels
3639 * @rx_slot: pointer to an array which imply the RX slot number channel
3640 * 0~num-1 uses
3641 *
3642 * configure the relationship between channel number and TDM slot number.
3643 */
3644int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
3645 unsigned int tx_num, unsigned int *tx_slot,
3646 unsigned int rx_num, unsigned int *rx_slot)
3647{
f0fba2ad
LG		 3648 if (dai->driver && dai->driver->ops->set_channel_map)
3649 return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
472df3cb
BS		 3650 rx_num, rx_slot);
3651 else
3652 return -EINVAL;
3653}
3654EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
3655
8c6529db
LG		 3656/**
3657 * snd_soc_dai_set_tristate - configure DAI system or master clock.
3658 * @dai: DAI
3659 * @tristate: tristate enable
3660 *
3661 * Tristates the DAI so that others can use it.
3662 */
3663int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
3664{
f0fba2ad
LG		 3665 if (dai->driver && dai->driver->ops->set_tristate)
3666 return dai->driver->ops->set_tristate(dai, tristate);
8c6529db
LG		 3667 else
3668 return -EINVAL;
3669}
3670EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
3671
3672/**
3673 * snd_soc_dai_digital_mute - configure DAI system or master clock.
3674 * @dai: DAI
3675 * @mute: mute enable
da18396f 3676 * @direction: stream to mute
8c6529db
LG		 3677 *
3678 * Mutes the DAI DAC.
3679 */
da18396f
MB		 3680int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
3681 int direction)
8c6529db 3682{
da18396f
MB		 3683 if (!dai->driver)
3684 return -ENOTSUPP;
3685
3686 if (dai->driver->ops->mute_stream)
3687 return dai->driver->ops->mute_stream(dai, mute, direction);
3688 else if (direction == SNDRV_PCM_STREAM_PLAYBACK &&
3689 dai->driver->ops->digital_mute)
f0fba2ad 3690 return dai->driver->ops->digital_mute(dai, mute);
8c6529db 3691 else
04570c62 3692 return -ENOTSUPP;
8c6529db
LG		 3693}
3694EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
3695
c5af3a2e
MB		 3696/**
3697 * snd_soc_register_card - Register a card with the ASoC core
3698 *
ac11a2b3 3699 * @card: Card to register
c5af3a2e 3700 *
c5af3a2e 3701 */
70a7ca34 3702int snd_soc_register_card(struct snd_soc_card *card)
c5af3a2e 3703{
b19e6e7b 3704 int i, ret;
f0fba2ad 3705
c5af3a2e
MB		 3706 if (!card->name || !card->dev)
3707 return -EINVAL;
3708
5a504963
SW		 3709 for (i = 0; i < card->num_links; i++) {
3710 struct snd_soc_dai_link *link = &card->dai_link[i];
3711
3712 /*
3713 * Codec must be specified by 1 of name or OF node,
3714 * not both or neither.
3715 */
3716 if (!!link->codec_name == !!link->codec_of_node) {
10e8aa9a
MM		 3717 dev_err(card->dev,
3718 "ASoC: Neither/both codec name/of_node are set for %s\n",
3719 link->name);
5a504963
SW		 3720 return -EINVAL;
3721 }
bc92657a
SW		 3722 /* Codec DAI name must be specified */
3723 if (!link->codec_dai_name) {
10e8aa9a
MM		 3724 dev_err(card->dev,
3725 "ASoC: codec_dai_name not set for %s\n",
3726 link->name);
bc92657a
SW		 3727 return -EINVAL;
3728 }
5a504963
SW		 3729
3730 /*
3731 * Platform may be specified by either name or OF node, but
3732 * can be left unspecified, and a dummy platform will be used.
3733 */
3734 if (link->platform_name && link->platform_of_node) {
10e8aa9a
MM		 3735 dev_err(card->dev,
3736 "ASoC: Both platform name/of_node are set for %s\n",
3737 link->name);
5a504963
SW		 3738 return -EINVAL;
3739 }
3740
3741 /*
bc92657a
SW		 3742 * CPU device may be specified by either name or OF node, but
3743 * can be left unspecified, and will be matched based on DAI
3744 * name alone..
3745 */
3746 if (link->cpu_name && link->cpu_of_node) {
10e8aa9a
MM		 3747 dev_err(card->dev,
3748 "ASoC: Neither/both cpu name/of_node are set for %s\n",
3749 link->name);
bc92657a
SW		 3750 return -EINVAL;
3751 }
3752 /*
3753 * At least one of CPU DAI name or CPU device name/node must be
3754 * specified
5a504963 3755 */
bc92657a
SW		 3756 if (!link->cpu_dai_name &&
3757 !(link->cpu_name || link->cpu_of_node)) {
10e8aa9a
MM		 3758 dev_err(card->dev,
3759 "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
3760 link->name);
5a504963
SW		 3761 return -EINVAL;
3762 }
3763 }
3764
ed77cc12
MB		 3765 dev_set_drvdata(card->dev, card);
3766
111c6419
SW		 3767 snd_soc_initialize_card_lists(card);
3768
150dd2f8
VK		 3769 soc_init_card_debugfs(card);
3770
181a6892
MB		 3771 card->rtd = devm_kzalloc(card->dev,
3772 sizeof(struct snd_soc_pcm_runtime) *
3773 (card->num_links + card->num_aux_devs),
3774 GFP_KERNEL);
f0fba2ad
LG		 3775 if (card->rtd == NULL)
3776 return -ENOMEM;
a7dbb603 3777 card->num_rtd = 0;
2eea392d 3778 card->rtd_aux = &card->rtd[card->num_links];
f0fba2ad
LG		 3779
3780 for (i = 0; i < card->num_links; i++)
3781 card->rtd[i].dai_link = &card->dai_link[i];
3782
c5af3a2e 3783 INIT_LIST_HEAD(&card->list);
db432b41 3784 INIT_LIST_HEAD(&card->dapm_dirty);
c5af3a2e 3785 card->instantiated = 0;
f0fba2ad 3786 mutex_init(&card->mutex);
a73fb2df 3787 mutex_init(&card->dapm_mutex);
c5af3a2e 3788
b19e6e7b
MB		 3789 ret = snd_soc_instantiate_card(card);
3790 if (ret != 0)
3791 soc_cleanup_card_debugfs(card);
c5af3a2e 3792
988e8cc4
NC		 3793 /* deactivate pins to sleep state */
3794 for (i = 0; i < card->num_rtd; i++) {
3795 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3796 struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
3797 if (!codec_dai->active)
3798 pinctrl_pm_select_sleep_state(codec_dai->dev);
3799 if (!cpu_dai->active)
3800 pinctrl_pm_select_sleep_state(cpu_dai->dev);
3801 }
3802
b19e6e7b 3803 return ret;
c5af3a2e 3804}
70a7ca34 3805EXPORT_SYMBOL_GPL(snd_soc_register_card);
c5af3a2e
MB		 3806
3807/**
3808 * snd_soc_unregister_card - Unregister a card with the ASoC core
3809 *
ac11a2b3 3810 * @card: Card to unregister
c5af3a2e 3811 *
c5af3a2e 3812 */
70a7ca34 3813int snd_soc_unregister_card(struct snd_soc_card *card)
c5af3a2e 3814{
b0e26485
VK		 3815 if (card->instantiated)
3816 soc_cleanup_card_resources(card);
f110bfc7 3817 dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name);
c5af3a2e
MB		 3818
3819 return 0;
3820}
70a7ca34 3821EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
c5af3a2e 3822
f0fba2ad
LG		 3823/*
3824 * Simplify DAI link configuration by removing ".-1" from device names
3825 * and sanitizing names.
3826 */
0b9a214a 3827static char *fmt_single_name(struct device *dev, int *id)
f0fba2ad
LG		 3828{
3829 char *found, name[NAME_SIZE];
3830 int id1, id2;
3831
3832 if (dev_name(dev) == NULL)
3833 return NULL;
3834
58818a77 3835 strlcpy(name, dev_name(dev), NAME_SIZE);
f0fba2ad
LG		 3836
3837 /* are we a "%s.%d" name (platform and SPI components) */
3838 found = strstr(name, dev->driver->name);
3839 if (found) {
3840 /* get ID */
3841 if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) {
3842
3843 /* discard ID from name if ID == -1 */
3844 if (*id == -1)
3845 found[strlen(dev->driver->name)] = '\0';
3846 }
3847
3848 } else {
3849 /* I2C component devices are named "bus-addr" */
3850 if (sscanf(name, "%x-%x", &id1, &id2) == 2) {
3851 char tmp[NAME_SIZE];
3852
3853 /* create unique ID number from I2C addr and bus */
05899446 3854 *id = ((id1 & 0xffff) << 16) + id2;
f0fba2ad
LG		 3855
3856 /* sanitize component name for DAI link creation */
3857 snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
58818a77 3858 strlcpy(name, tmp, NAME_SIZE);
f0fba2ad
LG		 3859 } else
3860 *id = 0;
3861 }
3862
3863 return kstrdup(name, GFP_KERNEL);
3864}
3865
3866/*
3867 * Simplify DAI link naming for single devices with multiple DAIs by removing
3868 * any ".-1" and using the DAI name (instead of device name).
3869 */
3870static inline char *fmt_multiple_name(struct device *dev,
3871 struct snd_soc_dai_driver *dai_drv)
3872{
3873 if (dai_drv->name == NULL) {
10e8aa9a
MM		 3874 dev_err(dev,
3875 "ASoC: error - multiple DAI %s registered with no name\n",
3876 dev_name(dev));
f0fba2ad
LG		 3877 return NULL;
3878 }
3879
3880 return kstrdup(dai_drv->name, GFP_KERNEL);
3881}
3882
9115171a
MB		 3883/**
3884 * snd_soc_register_dai - Register a DAI with the ASoC core
3885 *
ac11a2b3 3886 * @dai: DAI to register
9115171a 3887 */
f53179c0 3888static int snd_soc_register_dai(struct device *dev,
f0fba2ad 3889 struct snd_soc_dai_driver *dai_drv)
9115171a 3890{
054880fe 3891 struct snd_soc_codec *codec;
f0fba2ad
LG		 3892 struct snd_soc_dai *dai;
3893
f110bfc7 3894 dev_dbg(dev, "ASoC: dai register %s\n", dev_name(dev));
9115171a 3895
f0fba2ad
LG		 3896 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
3897 if (dai == NULL)
a7393623 3898 return -ENOMEM;
9115171a 3899
f0fba2ad
LG		 3900 /* create DAI component name */
3901 dai->name = fmt_single_name(dev, &dai->id);
3902 if (dai->name == NULL) {
3903 kfree(dai);
3904 return -ENOMEM;
3905 }
6335d055 3906
f0fba2ad
LG		 3907 dai->dev = dev;
3908 dai->driver = dai_drv;
be09ad90 3909 dai->dapm.dev = dev;
f0fba2ad
LG		 3910 if (!dai->driver->ops)
3911 dai->driver->ops = &null_dai_ops;
9115171a
MB		 3912
3913 mutex_lock(&client_mutex);
054880fe
MB		 3914
3915 list_for_each_entry(codec, &codec_list, list) {
3916 if (codec->dev == dev) {
f110bfc7 3917 dev_dbg(dev, "ASoC: Mapped DAI %s to CODEC %s\n",
054880fe
MB		 3918 dai->name, codec->name);
3919 dai->codec = codec;
3920 break;
3921 }
3922 }
3923
5f800080
PU		 3924 if (!dai->codec)
3925 dai->dapm.idle_bias_off = 1;
3926
9115171a 3927 list_add(&dai->list, &dai_list);
054880fe 3928
9115171a
MB		 3929 mutex_unlock(&client_mutex);
3930
f110bfc7 3931 dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name);
9115171a
MB		 3932
3933 return 0;
3934}
9115171a
MB		 3935
3936/**
3937 * snd_soc_unregister_dai - Unregister a DAI from the ASoC core
3938 *
ac11a2b3 3939 * @dai: DAI to unregister
9115171a 3940 */
f53179c0 3941static void snd_soc_unregister_dai(struct device *dev)
9115171a 3942{
f0fba2ad
LG		 3943 struct snd_soc_dai *dai;
3944
3945 list_for_each_entry(dai, &dai_list, list) {
3946 if (dev == dai->dev)
3947 goto found;
3948 }
3949 return;
3950
3951found:
9115171a
MB		 3952 mutex_lock(&client_mutex);
3953 list_del(&dai->list);
3954 mutex_unlock(&client_mutex);
3955
f110bfc7 3956 dev_dbg(dev, "ASoC: Unregistered DAI '%s'\n", dai->name);
f0fba2ad
LG		 3957 kfree(dai->name);
3958 kfree(dai);
9115171a 3959}
9115171a
MB		 3960
3961/**
3962 * snd_soc_register_dais - Register multiple DAIs with the ASoC core
3963 *
ac11a2b3
MB		 3964 * @dai: Array of DAIs to register
3965 * @count: Number of DAIs
9115171a 3966 */
f53179c0 3967static int snd_soc_register_dais(struct device *dev,
f0fba2ad 3968 struct snd_soc_dai_driver *dai_drv, size_t count)
9115171a 3969{
054880fe 3970 struct snd_soc_codec *codec;
f0fba2ad
LG		 3971 struct snd_soc_dai *dai;
3972 int i, ret = 0;
3973
f110bfc7 3974 dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count);
9115171a
MB		 3975
3976 for (i = 0; i < count; i++) {
f0fba2ad
LG		 3977
3978 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
c46e0079
AL		 3979 if (dai == NULL) {
3980 ret = -ENOMEM;
3981 goto err;
3982 }
f0fba2ad
LG		 3983
3984 /* create DAI component name */
3985 dai->name = fmt_multiple_name(dev, &dai_drv[i]);
3986 if (dai->name == NULL) {
3987 kfree(dai);
3988 ret = -EINVAL;
9115171a 3989 goto err;
f0fba2ad
LG		 3990 }
3991
3992 dai->dev = dev;
f0fba2ad 3993 dai->driver = &dai_drv[i];
0f9141c9
MB		 3994 if (dai->driver->id)
3995 dai->id = dai->driver->id;
3996 else
3997 dai->id = i;
be09ad90 3998 dai->dapm.dev = dev;
f0fba2ad
LG		 3999 if (!dai->driver->ops)
4000 dai->driver->ops = &null_dai_ops;
4001
4002 mutex_lock(&client_mutex);
054880fe
MB		 4003
4004 list_for_each_entry(codec, &codec_list, list) {
4005 if (codec->dev == dev) {
10e8aa9a
MM		 4006 dev_dbg(dev,
4007 "ASoC: Mapped DAI %s to CODEC %s\n",
4008 dai->name, codec->name);
054880fe
MB		 4009 dai->codec = codec;
4010 break;
4011 }
4012 }
4013
5f800080
PU		 4014 if (!dai->codec)
4015 dai->dapm.idle_bias_off = 1;
4016
f0fba2ad 4017 list_add(&dai->list, &dai_list);
054880fe 4018
f0fba2ad
LG		 4019 mutex_unlock(&client_mutex);
4020
f110bfc7 4021 dev_dbg(dai->dev, "ASoC: Registered DAI '%s'\n", dai->name);
9115171a
MB		 4022 }
4023
4024 return 0;
4025
4026err:
4027 for (i--; i >= 0; i--)
f0fba2ad 4028 snd_soc_unregister_dai(dev);
9115171a
MB		 4029
4030 return ret;
4031}
9115171a
MB		 4032
4033/**
4034 * snd_soc_unregister_dais - Unregister multiple DAIs from the ASoC core
4035 *
ac11a2b3
MB		 4036 * @dai: Array of DAIs to unregister
4037 * @count: Number of DAIs
9115171a 4038 */
f53179c0 4039static void snd_soc_unregister_dais(struct device *dev, size_t count)
9115171a
MB		 4040{
4041 int i;
4042
4043 for (i = 0; i < count; i++)
f0fba2ad 4044 snd_soc_unregister_dai(dev);
9115171a 4045}
9115171a 4046
d191bd8d
KM		 4047/**
4048 * snd_soc_register_component - Register a component with the ASoC core
4049 *
4050 */
4051static int
4052__snd_soc_register_component(struct device *dev,
4053 struct snd_soc_component *cmpnt,
4054 const struct snd_soc_component_driver *cmpnt_drv,
4055 struct snd_soc_dai_driver *dai_drv,
4056 int num_dai, bool allow_single_dai)
4057{
4058 int ret;
4059
4060 dev_dbg(dev, "component register %s\n", dev_name(dev));
4061
4062 if (!cmpnt) {
4063 dev_err(dev, "ASoC: Failed to connecting component\n");
4064 return -ENOMEM;
4065 }
4066
4067 cmpnt->name = fmt_single_name(dev, &cmpnt->id);
4068 if (!cmpnt->name) {
4069 dev_err(dev, "ASoC: Failed to simplifying name\n");
4070 return -ENOMEM;
4071 }
4072
4073 cmpnt->dev = dev;
4074 cmpnt->driver = cmpnt_drv;
6833c452 4075 cmpnt->dai_drv = dai_drv;
d191bd8d
KM		 4076 cmpnt->num_dai = num_dai;
4077
4078 /*
4079 * snd_soc_register_dai() uses fmt_single_name(), and
4080 * snd_soc_register_dais() uses fmt_multiple_name()
4081 * for dai->name which is used for name based matching
4082 *
4083 * this function is used from cpu/codec.
4084 * allow_single_dai flag can ignore "codec" driver reworking
4085 * since it had been used snd_soc_register_dais(),
4086 */
4087 if ((1 == num_dai) && allow_single_dai)
4088 ret = snd_soc_register_dai(dev, dai_drv);
4089 else
4090 ret = snd_soc_register_dais(dev, dai_drv, num_dai);
4091 if (ret < 0) {
4092 dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret);
4093 goto error_component_name;
4094 }
4095
4096 mutex_lock(&client_mutex);
4097 list_add(&cmpnt->list, &component_list);
4098 mutex_unlock(&client_mutex);
4099
4100 dev_dbg(cmpnt->dev, "ASoC: Registered component '%s'\n", cmpnt->name);
4101
4102 return ret;
4103
4104error_component_name:
4105 kfree(cmpnt->name);
4106
4107 return ret;
4108}
4109
4110int snd_soc_register_component(struct device *dev,
4111 const struct snd_soc_component_driver *cmpnt_drv,
4112 struct snd_soc_dai_driver *dai_drv,
4113 int num_dai)
4114{
4115 struct snd_soc_component *cmpnt;
4116
4117 cmpnt = devm_kzalloc(dev, sizeof(*cmpnt), GFP_KERNEL);
4118 if (!cmpnt) {
4119 dev_err(dev, "ASoC: Failed to allocate memory\n");
4120 return -ENOMEM;
4121 }
4122
4123 return __snd_soc_register_component(dev, cmpnt, cmpnt_drv,
4124 dai_drv, num_dai, true);
4125}
4126EXPORT_SYMBOL_GPL(snd_soc_register_component);
4127
4128/**
4129 * snd_soc_unregister_component - Unregister a component from the ASoC core
4130 *
4131 */
4132void snd_soc_unregister_component(struct device *dev)
4133{
4134 struct snd_soc_component *cmpnt;
4135
4136 list_for_each_entry(cmpnt, &component_list, list) {
4137 if (dev == cmpnt->dev)
4138 goto found;
4139 }
4140 return;
4141
4142found:
4143 snd_soc_unregister_dais(dev, cmpnt->num_dai);
4144
4145 mutex_lock(&client_mutex);
4146 list_del(&cmpnt->list);
4147 mutex_unlock(&client_mutex);
4148
4149 dev_dbg(dev, "ASoC: Unregistered component '%s'\n", cmpnt->name);
4150 kfree(cmpnt->name);
4151}
4152EXPORT_SYMBOL_GPL(snd_soc_unregister_component);
4153
12a48a8c 4154/**
71a45cda
LPC		 4155 * snd_soc_add_platform - Add a platform to the ASoC core
4156 * @dev: The parent device for the platform
4157 * @platform: The platform to add
4158 * @platform_driver: The driver for the platform
12a48a8c 4159 */
71a45cda 4160int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
d79e57db 4161 const struct snd_soc_platform_driver *platform_drv)
12a48a8c 4162{
f0fba2ad
LG		 4163 /* create platform component name */
4164 platform->name = fmt_single_name(dev, &platform->id);
b5c745fb 4165 if (platform->name == NULL)
f0fba2ad 4166 return -ENOMEM;
12a48a8c 4167
f0fba2ad
LG		 4168 platform->dev = dev;
4169 platform->driver = platform_drv;
b7950641
LG		 4170 platform->dapm.dev = dev;
4171 platform->dapm.platform = platform;
64a648c2 4172 platform->dapm.stream_event = platform_drv->stream_event;
cc22d37e 4173 mutex_init(&platform->mutex);
12a48a8c
MB		 4174
4175 mutex_lock(&client_mutex);
4176 list_add(&platform->list, &platform_list);
4177 mutex_unlock(&client_mutex);
4178
f110bfc7 4179 dev_dbg(dev, "ASoC: Registered platform '%s'\n", platform->name);
12a48a8c
MB		 4180
4181 return 0;
4182}
71a45cda 4183EXPORT_SYMBOL_GPL(snd_soc_add_platform);
12a48a8c
MB		 4184
4185/**
71a45cda 4186 * snd_soc_register_platform - Register a platform with the ASoC core
12a48a8c 4187 *
71a45cda 4188 * @platform: platform to register
12a48a8c 4189 */
71a45cda
LPC		 4190int snd_soc_register_platform(struct device *dev,
4191 const struct snd_soc_platform_driver *platform_drv)
12a48a8c 4192{
f0fba2ad 4193 struct snd_soc_platform *platform;
71a45cda 4194 int ret;
f0fba2ad 4195
71a45cda 4196 dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev));
f0fba2ad 4197
71a45cda
LPC		 4198 platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL);
4199 if (platform == NULL)
4200 return -ENOMEM;
4201
4202 ret = snd_soc_add_platform(dev, platform, platform_drv);
4203 if (ret)
4204 kfree(platform);
4205
4206 return ret;
4207}
4208EXPORT_SYMBOL_GPL(snd_soc_register_platform);
4209
4210/**
4211 * snd_soc_remove_platform - Remove a platform from the ASoC core
4212 * @platform: the platform to remove
4213 */
4214void snd_soc_remove_platform(struct snd_soc_platform *platform)
4215{
12a48a8c
MB		 4216 mutex_lock(&client_mutex);
4217 list_del(&platform->list);
4218 mutex_unlock(&client_mutex);
4219
71a45cda
LPC		 4220 dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n",
4221 platform->name);
f0fba2ad 4222 kfree(platform->name);
71a45cda
LPC		 4223}
4224EXPORT_SYMBOL_GPL(snd_soc_remove_platform);
4225
4226struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev)
4227{
4228 struct snd_soc_platform *platform;
4229
4230 list_for_each_entry(platform, &platform_list, list) {
4231 if (dev == platform->dev)
4232 return platform;
4233 }
4234
4235 return NULL;
4236}
4237EXPORT_SYMBOL_GPL(snd_soc_lookup_platform);
4238
4239/**
4240 * snd_soc_unregister_platform - Unregister a platform from the ASoC core
4241 *
4242 * @platform: platform to unregister
4243 */
4244void snd_soc_unregister_platform(struct device *dev)
4245{
4246 struct snd_soc_platform *platform;
4247
4248 platform = snd_soc_lookup_platform(dev);
4249 if (!platform)
4250 return;
4251
4252 snd_soc_remove_platform(platform);
f0fba2ad 4253 kfree(platform);
12a48a8c
MB		 4254}
4255EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
4256
151ab22c
MB		 4257static u64 codec_format_map[] = {
4258 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE,
4259 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE,
4260 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE,
4261 SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE,
4262 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
4263 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE,
4264 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
4265 SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
4266 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE,
4267 SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE,
4268 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE,
4269 SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE,
4270 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
4271 SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE,
4272 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
4273 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
4274};
4275
4276/* Fix up the DAI formats for endianness: codecs don't actually see
4277 * the endianness of the data but we're using the CPU format
4278 * definitions which do need to include endianness so we ensure that
4279 * codec DAIs always have both big and little endian variants set.
4280 */
4281static void fixup_codec_formats(struct snd_soc_pcm_stream *stream)
4282{
4283 int i;
4284
4285 for (i = 0; i < ARRAY_SIZE(codec_format_map); i++)
4286 if (stream->formats & codec_format_map[i])
4287 stream->formats |= codec_format_map[i];
4288}
4289
0d0cf00a
MB		 4290/**
4291 * snd_soc_register_codec - Register a codec with the ASoC core
4292 *
ac11a2b3 4293 * @codec: codec to register
0d0cf00a 4294 */
f0fba2ad 4295int snd_soc_register_codec(struct device *dev,
001ae4c0
MB		 4296 const struct snd_soc_codec_driver *codec_drv,
4297 struct snd_soc_dai_driver *dai_drv,
4298 int num_dai)
0d0cf00a 4299{
f0fba2ad
LG		 4300 struct snd_soc_codec *codec;
4301 int ret, i;
151ab22c 4302
f0fba2ad
LG		 4303 dev_dbg(dev, "codec register %s\n", dev_name(dev));
4304
4305 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
4306 if (codec == NULL)
4307 return -ENOMEM;
0d0cf00a 4308
f0fba2ad
LG		 4309 /* create CODEC component name */
4310 codec->name = fmt_single_name(dev, &codec->id);
4311 if (codec->name == NULL) {
f790b94d
KM		 4312 ret = -ENOMEM;
4313 goto fail_codec;
f0fba2ad
LG		 4314 }
4315
c3acec26
MB		 4316 codec->write = codec_drv->write;
4317 codec->read = codec_drv->read;
1500b7b5
DP		 4318 codec->volatile_register = codec_drv->volatile_register;
4319 codec->readable_register = codec_drv->readable_register;
8020454c 4320 codec->writable_register = codec_drv->writable_register;
5124e69e 4321 codec->ignore_pmdown_time = codec_drv->ignore_pmdown_time;
ce6120cc
LG		 4322 codec->dapm.bias_level = SND_SOC_BIAS_OFF;
4323 codec->dapm.dev = dev;
4324 codec->dapm.codec = codec;
474b62d6 4325 codec->dapm.seq_notifier = codec_drv->seq_notifier;
64a648c2 4326 codec->dapm.stream_event = codec_drv->stream_event;
7a30a3db
DP		 4327 codec->dev = dev;
4328 codec->driver = codec_drv;
4329 codec->num_dai = num_dai;
4330 mutex_init(&codec->mutex);
ce6120cc 4331
f0fba2ad
LG		 4332 for (i = 0; i < num_dai; i++) {
4333 fixup_codec_formats(&dai_drv[i].playback);
4334 fixup_codec_formats(&dai_drv[i].capture);
4335 }
4336
054880fe
MB		 4337 mutex_lock(&client_mutex);
4338 list_add(&codec->list, &codec_list);
4339 mutex_unlock(&client_mutex);
4340
d191bd8d
KM		 4341 /* register component */
4342 ret = __snd_soc_register_component(dev, &codec->component,
4343 &codec_drv->component_driver,
4344 dai_drv, num_dai, false);
5acd7dfb 4345 if (ret < 0) {
d191bd8d 4346 dev_err(codec->dev, "ASoC: Failed to regster component: %d\n", ret);
5acd7dfb 4347 goto fail_codec_name;
26b01ccd 4348 }
f0fba2ad 4349
f110bfc7 4350 dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", codec->name);
0d0cf00a 4351 return 0;
f0fba2ad 4352
f790b94d 4353fail_codec_name:
e1328a83
KM		 4354 mutex_lock(&client_mutex);
4355 list_del(&codec->list);
4356 mutex_unlock(&client_mutex);
4357
f0fba2ad 4358 kfree(codec->name);
f790b94d 4359fail_codec:
f0fba2ad
LG		 4360 kfree(codec);
4361 return ret;
0d0cf00a
MB		 4362}
4363EXPORT_SYMBOL_GPL(snd_soc_register_codec);
4364
4365/**
4366 * snd_soc_unregister_codec - Unregister a codec from the ASoC core
4367 *
ac11a2b3 4368 * @codec: codec to unregister
0d0cf00a 4369 */
f0fba2ad 4370void snd_soc_unregister_codec(struct device *dev)
0d0cf00a 4371{
f0fba2ad 4372 struct snd_soc_codec *codec;
f0fba2ad
LG		 4373
4374 list_for_each_entry(codec, &codec_list, list) {
4375 if (dev == codec->dev)
4376 goto found;
4377 }
4378 return;
4379
4380found:
d191bd8d 4381 snd_soc_unregister_component(dev);
f0fba2ad 4382
0d0cf00a
MB		 4383 mutex_lock(&client_mutex);
4384 list_del(&codec->list);
4385 mutex_unlock(&client_mutex);
4386
f110bfc7 4387 dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", codec->name);
f0fba2ad 4388
7a30a3db 4389 snd_soc_cache_exit(codec);
1aafcd4d 4390 kfree(codec->name);
f0fba2ad 4391 kfree(codec);
0d0cf00a
MB		 4392}
4393EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
4394
bec4fa05
SW		 4395/* Retrieve a card's name from device tree */
4396int snd_soc_of_parse_card_name(struct snd_soc_card *card,
4397 const char *propname)
4398{
4399 struct device_node *np = card->dev->of_node;
4400 int ret;
4401
4402 ret = of_property_read_string_index(np, propname, 0, &card->name);
4403 /*
4404 * EINVAL means the property does not exist. This is fine providing
4405 * card->name was previously set, which is checked later in
4406 * snd_soc_register_card.
4407 */
4408 if (ret < 0 && ret != -EINVAL) {
4409 dev_err(card->dev,
f110bfc7 4410 "ASoC: Property '%s' could not be read: %d\n",
bec4fa05
SW		 4411 propname, ret);
4412 return ret;
4413 }
4414
4415 return 0;
4416}
4417EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name);
4418
a4a54dd5
SW		 4419int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
4420 const char *propname)
4421{
4422 struct device_node *np = card->dev->of_node;
4423 int num_routes;
4424 struct snd_soc_dapm_route *routes;
4425 int i, ret;
4426
4427 num_routes = of_property_count_strings(np, propname);
c34ce320 4428 if (num_routes < 0 || num_routes & 1) {
10e8aa9a
MM		 4429 dev_err(card->dev,
4430 "ASoC: Property '%s' does not exist or its length is not even\n",
4431 propname);
a4a54dd5
SW		 4432 return -EINVAL;
4433 }
4434 num_routes /= 2;
4435 if (!num_routes) {
f110bfc7 4436 dev_err(card->dev, "ASoC: Property '%s's length is zero\n",
a4a54dd5
SW		 4437 propname);
4438 return -EINVAL;
4439 }
4440
4441 routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes),
4442 GFP_KERNEL);
4443 if (!routes) {
4444 dev_err(card->dev,
f110bfc7 4445 "ASoC: Could not allocate DAPM route table\n");
a4a54dd5
SW		 4446 return -EINVAL;
4447 }
4448
4449 for (i = 0; i < num_routes; i++) {
4450 ret = of_property_read_string_index(np, propname,
4451 2 * i, &routes[i].sink);
4452 if (ret) {
c871bd0b
MB		 4453 dev_err(card->dev,
4454 "ASoC: Property '%s' index %d could not be read: %d\n",
4455 propname, 2 * i, ret);
a4a54dd5
SW		 4456 return -EINVAL;
4457 }
4458 ret = of_property_read_string_index(np, propname,
4459 (2 * i) + 1, &routes[i].source);
4460 if (ret) {
4461 dev_err(card->dev,
c871bd0b
MB		 4462 "ASoC: Property '%s' index %d could not be read: %d\n",
4463 propname, (2 * i) + 1, ret);
a4a54dd5
SW		 4464 return -EINVAL;
4465 }
4466 }
4467
4468 card->num_dapm_routes = num_routes;
4469 card->dapm_routes = routes;
4470
4471 return 0;
4472}
4473EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing);
4474
a7930ed4
KM		 4475unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
4476 const char *prefix)
4477{
4478 int ret, i;
4479 char prop[128];
4480 unsigned int format = 0;
4481 int bit, frame;
4482 const char *str;
4483 struct {
4484 char *name;
4485 unsigned int val;
4486 } of_fmt_table[] = {
4487 { "i2s", SND_SOC_DAIFMT_I2S },
4488 { "right_j", SND_SOC_DAIFMT_RIGHT_J },
4489 { "left_j", SND_SOC_DAIFMT_LEFT_J },
4490 { "dsp_a", SND_SOC_DAIFMT_DSP_A },
4491 { "dsp_b", SND_SOC_DAIFMT_DSP_B },
4492 { "ac97", SND_SOC_DAIFMT_AC97 },
4493 { "pdm", SND_SOC_DAIFMT_PDM},
4494 { "msb", SND_SOC_DAIFMT_MSB },
4495 { "lsb", SND_SOC_DAIFMT_LSB },
a7930ed4
KM		 4496 };
4497
4498 if (!prefix)
4499 prefix = "";
4500
4501 /*
4502 * check "[prefix]format = xxx"
4503 * SND_SOC_DAIFMT_FORMAT_MASK area
4504 */
4505 snprintf(prop, sizeof(prop), "%sformat", prefix);
4506 ret = of_property_read_string(np, prop, &str);
4507 if (ret == 0) {
4508 for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) {
4509 if (strcmp(str, of_fmt_table[i].name) == 0) {
4510 format |= of_fmt_table[i].val;
4511 break;
4512 }
4513 }
4514 }
4515
4516 /*
8c2d6a9f 4517 * check "[prefix]continuous-clock"
a7930ed4
KM		 4518 * SND_SOC_DAIFMT_CLOCK_MASK area
4519 */
8c2d6a9f
KM		 4520 snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix);
4521 if (of_get_property(np, prop, NULL))
4522 format |= SND_SOC_DAIFMT_CONT;
4523 else
4524 format |= SND_SOC_DAIFMT_GATED;
a7930ed4
KM		 4525
4526 /*
4527 * check "[prefix]bitclock-inversion"
4528 * check "[prefix]frame-inversion"
4529 * SND_SOC_DAIFMT_INV_MASK area
4530 */
4531 snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix);
4532 bit = !!of_get_property(np, prop, NULL);
4533
4534 snprintf(prop, sizeof(prop), "%sframe-inversion", prefix);
4535 frame = !!of_get_property(np, prop, NULL);
4536
4537 switch ((bit << 4) + frame) {
4538 case 0x11:
4539 format |= SND_SOC_DAIFMT_IB_IF;
4540 break;
4541 case 0x10:
4542 format |= SND_SOC_DAIFMT_IB_NF;
4543 break;
4544 case 0x01:
4545 format |= SND_SOC_DAIFMT_NB_IF;
4546 break;
4547 default:
4548 /* SND_SOC_DAIFMT_NB_NF is default */
4549 break;
4550 }
4551
4552 /*
4553 * check "[prefix]bitclock-master"
4554 * check "[prefix]frame-master"
4555 * SND_SOC_DAIFMT_MASTER_MASK area
4556 */
4557 snprintf(prop, sizeof(prop), "%sbitclock-master", prefix);
4558 bit = !!of_get_property(np, prop, NULL);
4559
4560 snprintf(prop, sizeof(prop), "%sframe-master", prefix);
4561 frame = !!of_get_property(np, prop, NULL);
4562
4563 switch ((bit << 4) + frame) {
4564 case 0x11:
4565 format |= SND_SOC_DAIFMT_CBM_CFM;
4566 break;
4567 case 0x10:
4568 format |= SND_SOC_DAIFMT_CBM_CFS;
4569 break;
4570 case 0x01:
4571 format |= SND_SOC_DAIFMT_CBS_CFM;
4572 break;
4573 default:
4574 format |= SND_SOC_DAIFMT_CBS_CFS;
4575 break;
4576 }
4577
4578 return format;
4579}
4580EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt);
4581
cb470087
KM		 4582int snd_soc_of_get_dai_name(struct device_node *of_node,
4583 const char **dai_name)
4584{
4585 struct snd_soc_component *pos;
4586 struct of_phandle_args args;
4587 int ret;
4588
4589 ret = of_parse_phandle_with_args(of_node, "sound-dai",
4590 "#sound-dai-cells", 0, &args);
4591 if (ret)
4592 return ret;
4593
4594 ret = -EPROBE_DEFER;
4595
4596 mutex_lock(&client_mutex);
4597 list_for_each_entry(pos, &component_list, list) {
4598 if (pos->dev->of_node != args.np)
4599 continue;
4600
6833c452
KM		 4601 if (pos->driver->of_xlate_dai_name) {
4602 ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name);
4603 } else {
4604 int id = -1;
4605
4606 switch (args.args_count) {
4607 case 0:
4608 id = 0; /* same as dai_drv[0] */
4609 break;
4610 case 1:
4611 id = args.args[0];
4612 break;
4613 default:
4614 /* not supported */
4615 break;
4616 }
4617
4618 if (id < 0 || id >= pos->num_dai) {
4619 ret = -EINVAL;
4620 } else {
4621 *dai_name = pos->dai_drv[id].name;
4622 ret = 0;
4623 }
cb470087
KM		 4624 }
4625
cb470087
KM		 4626 break;
4627 }
4628 mutex_unlock(&client_mutex);
4629
4630 of_node_put(args.np);
4631
4632 return ret;
4633}
4634EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name);
4635
c9b3a40f 4636static int __init snd_soc_init(void)
db2a4165 4637{
384c89e2 4638#ifdef CONFIG_DEBUG_FS
8a9dab1a
MB		 4639 snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
4640 if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
0837fc62 4641 pr_warn("ASoC: Failed to create debugfs directory\n");
8a9dab1a 4642 snd_soc_debugfs_root = NULL;
384c89e2 4643 }
c3c5a19a 4644
8a9dab1a 4645 if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL,
c3c5a19a
MB		 4646 &codec_list_fops))
4647 pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
4648
8a9dab1a 4649 if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
f3208780
MB		 4650 &dai_list_fops))
4651 pr_warn("ASoC: Failed to create DAI list debugfs file\n");
19c7ac27 4652
8a9dab1a 4653 if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
19c7ac27
MB		 4654 &platform_list_fops))
4655 pr_warn("ASoC: Failed to create platform list debugfs file\n");
384c89e2
MB		 4656#endif
4657
fb257897
MB		 4658 snd_soc_util_init();
4659
db2a4165
FM		 4660 return platform_driver_register(&soc_driver);
4661}
4abe8e16 4662module_init(snd_soc_init);
db2a4165 4663
7d8c16a6 4664static void __exit snd_soc_exit(void)
db2a4165 4665{
fb257897
MB		 4666 snd_soc_util_exit();
4667
384c89e2 4668#ifdef CONFIG_DEBUG_FS
8a9dab1a 4669 debugfs_remove_recursive(snd_soc_debugfs_root);
384c89e2 4670#endif
3ff3f64b 4671 platform_driver_unregister(&soc_driver);
db2a4165 4672}
db2a4165
FM		 4673module_exit(snd_soc_exit);
4674
4675/* Module information */
d331124d 4676MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
db2a4165
FM		 4677MODULE_DESCRIPTION("ALSA SoC Core");
4678MODULE_LICENSE("GPL");
8b45a209 4679MODULE_ALIAS("platform:soc-audio");
Linux kernel - Deliverables
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