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ASoC: Add a per component dai list
[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);
12a48a8c 59static LIST_HEAD(platform_list);
0d0cf00a 60static LIST_HEAD(codec_list);
030e79f6 61static LIST_HEAD(component_list);
c5af3a2e 62
db2a4165
FM		 63/*
64 * This is a timeout to do a DAPM powerdown after a stream is closed().
65 * It can be used to eliminate pops between different playback streams, e.g.
66 * between two audio tracks.
67 */
68static int pmdown_time = 5000;
69module_param(pmdown_time, int, 0);
70MODULE_PARM_DESC(pmdown_time, "DAPM stream powerdown time (msecs)");
71
741a509f
MP		 72struct snd_ac97_reset_cfg {
73 struct pinctrl *pctl;
74 struct pinctrl_state *pstate_reset;
75 struct pinctrl_state *pstate_warm_reset;
76 struct pinctrl_state *pstate_run;
77 int gpio_sdata;
78 int gpio_sync;
79 int gpio_reset;
80};
81
2bc9a81e
DP		 82/* returns the minimum number of bytes needed to represent
83 * a particular given value */
84static int min_bytes_needed(unsigned long val)
85{
86 int c = 0;
87 int i;
88
89 for (i = (sizeof val * 8) - 1; i >= 0; --i, ++c)
90 if (val & (1UL << i))
91 break;
92 c = (sizeof val * 8) - c;
93 if (!c || (c % 8))
94 c = (c + 8) / 8;
95 else
96 c /= 8;
97 return c;
98}
99
13fd179f
DP		 100/* fill buf which is 'len' bytes with a formatted
101 * string of the form 'reg: value\n' */
102static int format_register_str(struct snd_soc_codec *codec,
103 unsigned int reg, char *buf, size_t len)
104{
00b317a4
SW		 105 int wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
106 int regsize = codec->driver->reg_word_size * 2;
13fd179f
DP		 107 int ret;
108 char tmpbuf[len + 1];
109 char regbuf[regsize + 1];
110
111 /* since tmpbuf is allocated on the stack, warn the callers if they
112 * try to abuse this function */
113 WARN_ON(len > 63);
114
115 /* +2 for ': ' and + 1 for '\n' */
116 if (wordsize + regsize + 2 + 1 != len)
117 return -EINVAL;
118
25032c11 119 ret = snd_soc_read(codec, reg);
13fd179f
DP		 120 if (ret < 0) {
121 memset(regbuf, 'X', regsize);
122 regbuf[regsize] = '\0';
123 } else {
124 snprintf(regbuf, regsize + 1, "%.*x", regsize, ret);
125 }
126
127 /* prepare the buffer */
128 snprintf(tmpbuf, len + 1, "%.*x: %s\n", wordsize, reg, regbuf);
129 /* copy it back to the caller without the '\0' */
130 memcpy(buf, tmpbuf, len);
131
132 return 0;
133}
134
2624d5fa 135/* codec register dump */
13fd179f
DP		 136static ssize_t soc_codec_reg_show(struct snd_soc_codec *codec, char *buf,
137 size_t count, loff_t pos)
2624d5fa 138{
13fd179f 139 int i, step = 1;
2bc9a81e 140 int wordsize, regsize;
13fd179f
DP		 141 int len;
142 size_t total = 0;
143 loff_t p = 0;
2bc9a81e 144
00b317a4
SW		 145 wordsize = min_bytes_needed(codec->driver->reg_cache_size) * 2;
146 regsize = codec->driver->reg_word_size * 2;
2624d5fa 147
13fd179f
DP		 148 len = wordsize + regsize + 2 + 1;
149
f0fba2ad 150 if (!codec->driver->reg_cache_size)
2624d5fa
MB		 151 return 0;
152
f0fba2ad
LG		 153 if (codec->driver->reg_cache_step)
154 step = codec->driver->reg_cache_step;
2624d5fa 155
f0fba2ad 156 for (i = 0; i < codec->driver->reg_cache_size; i += step) {
b92d150b 157 if (!snd_soc_codec_readable_register(codec, i))
2624d5fa 158 continue;
f0fba2ad
LG		 159 if (codec->driver->display_register) {
160 count += codec->driver->display_register(codec, buf + count,
2624d5fa 161 PAGE_SIZE - count, i);
5164d74d 162 } else {
13fd179f
DP		 163 /* only support larger than PAGE_SIZE bytes debugfs
164 * entries for the default case */
165 if (p >= pos) {
166 if (total + len >= count - 1)
167 break;
168 format_register_str(codec, i, buf + total, len);
169 total += len;
170 }
171 p += len;
5164d74d 172 }
2624d5fa
MB		 173 }
174
13fd179f 175 total = min(total, count - 1);
2624d5fa 176
13fd179f 177 return total;
2624d5fa 178}
13fd179f 179
2624d5fa
MB		 180static ssize_t codec_reg_show(struct device *dev,
181 struct device_attribute *attr, char *buf)
182{
36ae1a96 183 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
f0fba2ad 184
13fd179f 185 return soc_codec_reg_show(rtd->codec, buf, PAGE_SIZE, 0);
2624d5fa
MB		 186}
187
188static DEVICE_ATTR(codec_reg, 0444, codec_reg_show, NULL);
189
dbe21408
MB		 190static ssize_t pmdown_time_show(struct device *dev,
191 struct device_attribute *attr, char *buf)
192{
36ae1a96 193 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
dbe21408 194
f0fba2ad 195 return sprintf(buf, "%ld\n", rtd->pmdown_time);
dbe21408
MB		 196}
197
198static ssize_t pmdown_time_set(struct device *dev,
199 struct device_attribute *attr,
200 const char *buf, size_t count)
201{
36ae1a96 202 struct snd_soc_pcm_runtime *rtd = dev_get_drvdata(dev);
c593b520 203 int ret;
dbe21408 204
b785a492 205 ret = kstrtol(buf, 10, &rtd->pmdown_time);
c593b520
MB		 206 if (ret)
207 return ret;
dbe21408
MB		 208
209 return count;
210}
211
212static DEVICE_ATTR(pmdown_time, 0644, pmdown_time_show, pmdown_time_set);
213
2624d5fa 214#ifdef CONFIG_DEBUG_FS
2624d5fa 215static ssize_t codec_reg_read_file(struct file *file, char __user *user_buf,
13fd179f 216 size_t count, loff_t *ppos)
2624d5fa
MB		 217{
218 ssize_t ret;
219 struct snd_soc_codec *codec = file->private_data;
13fd179f
DP		 220 char *buf;
221
222 if (*ppos < 0 || !count)
223 return -EINVAL;
224
225 buf = kmalloc(count, GFP_KERNEL);
2624d5fa
MB		 226 if (!buf)
227 return -ENOMEM;
13fd179f
DP		 228
229 ret = soc_codec_reg_show(codec, buf, count, *ppos);
230 if (ret >= 0) {
231 if (copy_to_user(user_buf, buf, ret)) {
232 kfree(buf);
233 return -EFAULT;
234 }
235 *ppos += ret;
236 }
237
2624d5fa
MB		 238 kfree(buf);
239 return ret;
240}
241
242static ssize_t codec_reg_write_file(struct file *file,
243 const char __user *user_buf, size_t count, loff_t *ppos)
244{
245 char buf[32];
34e268d8 246 size_t buf_size;
2624d5fa
MB		 247 char *start = buf;
248 unsigned long reg, value;
2624d5fa 249 struct snd_soc_codec *codec = file->private_data;
b785a492 250 int ret;
2624d5fa
MB		 251
252 buf_size = min(count, (sizeof(buf)-1));
253 if (copy_from_user(buf, user_buf, buf_size))
254 return -EFAULT;
255 buf[buf_size] = 0;
2624d5fa
MB		 256
257 while (*start == ' ')
258 start++;
259 reg = simple_strtoul(start, &start, 16);
2624d5fa
MB		 260 while (*start == ' ')
261 start++;
b785a492
JH		 262 ret = kstrtoul(start, 16, &value);
263 if (ret)
264 return ret;
0d51a9cb
MB		 265
266 /* Userspace has been fiddling around behind the kernel's back */
373d4d09 267 add_taint(TAINT_USER, LOCKDEP_NOW_UNRELIABLE);
0d51a9cb 268
e4f078d8 269 snd_soc_write(codec, reg, value);
2624d5fa
MB		 270 return buf_size;
271}
272
273static const struct file_operations codec_reg_fops = {
234e3405 274 .open = simple_open,
2624d5fa
MB		 275 .read = codec_reg_read_file,
276 .write = codec_reg_write_file,
6038f373 277 .llseek = default_llseek,
2624d5fa
MB		 278};
279
280static void soc_init_codec_debugfs(struct snd_soc_codec *codec)
281{
d6ce4cf3
JN		 282 struct dentry *debugfs_card_root = codec->card->debugfs_card_root;
283
284 codec->debugfs_codec_root = debugfs_create_dir(codec->name,
285 debugfs_card_root);
2624d5fa 286 if (!codec->debugfs_codec_root) {
10e8aa9a
MM		 287 dev_warn(codec->dev,
288 "ASoC: Failed to create codec debugfs directory\n");
2624d5fa
MB		 289 return;
290 }
291
aaee8ef1
MB		 292 debugfs_create_bool("cache_sync", 0444, codec->debugfs_codec_root,
293 &codec->cache_sync);
294 debugfs_create_bool("cache_only", 0444, codec->debugfs_codec_root,
295 &codec->cache_only);
296
2624d5fa
MB		 297 codec->debugfs_reg = debugfs_create_file("codec_reg", 0644,
298 codec->debugfs_codec_root,
299 codec, &codec_reg_fops);
300 if (!codec->debugfs_reg)
10e8aa9a
MM		 301 dev_warn(codec->dev,
302 "ASoC: Failed to create codec register debugfs file\n");
2624d5fa 303
8eecaf62 304 snd_soc_dapm_debugfs_init(&codec->dapm, codec->debugfs_codec_root);
2624d5fa
MB		 305}
306
307static void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
308{
309 debugfs_remove_recursive(codec->debugfs_codec_root);
310}
311
731f1ab2
SG		 312static void soc_init_platform_debugfs(struct snd_soc_platform *platform)
313{
314 struct dentry *debugfs_card_root = platform->card->debugfs_card_root;
315
316 platform->debugfs_platform_root = debugfs_create_dir(platform->name,
317 debugfs_card_root);
318 if (!platform->debugfs_platform_root) {
319 dev_warn(platform->dev,
f110bfc7 320 "ASoC: Failed to create platform debugfs directory\n");
731f1ab2
SG		 321 return;
322 }
323
324 snd_soc_dapm_debugfs_init(&platform->dapm,
325 platform->debugfs_platform_root);
326}
327
328static void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
329{
330 debugfs_remove_recursive(platform->debugfs_platform_root);
331}
332
c3c5a19a
MB		 333static ssize_t codec_list_read_file(struct file *file, char __user *user_buf,
334 size_t count, loff_t *ppos)
335{
336 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 337 ssize_t len, ret = 0;
c3c5a19a
MB		 338 struct snd_soc_codec *codec;
339
340 if (!buf)
341 return -ENOMEM;
342
2b194f9d
MB		 343 list_for_each_entry(codec, &codec_list, list) {
344 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
345 codec->name);
346 if (len >= 0)
347 ret += len;
348 if (ret > PAGE_SIZE) {
349 ret = PAGE_SIZE;
350 break;
351 }
352 }
c3c5a19a
MB		 353
354 if (ret >= 0)
355 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
356
357 kfree(buf);
358
359 return ret;
360}
361
362static const struct file_operations codec_list_fops = {
363 .read = codec_list_read_file,
364 .llseek = default_llseek,/* read accesses f_pos */
365};
366
f3208780
MB		 367static ssize_t dai_list_read_file(struct file *file, char __user *user_buf,
368 size_t count, loff_t *ppos)
369{
370 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 371 ssize_t len, ret = 0;
1438c2f6 372 struct snd_soc_component *component;
f3208780
MB		 373 struct snd_soc_dai *dai;
374
375 if (!buf)
376 return -ENOMEM;
377
1438c2f6
LPC		 378 list_for_each_entry(component, &component_list, list) {
379 list_for_each_entry(dai, &component->dai_list, list) {
380 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
381 dai->name);
382 if (len >= 0)
383 ret += len;
384 if (ret > PAGE_SIZE) {
385 ret = PAGE_SIZE;
386 break;
387 }
2b194f9d
MB		 388 }
389 }
f3208780 390
2b194f9d 391 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
f3208780
MB		 392
393 kfree(buf);
394
395 return ret;
396}
397
398static const struct file_operations dai_list_fops = {
399 .read = dai_list_read_file,
400 .llseek = default_llseek,/* read accesses f_pos */
401};
402
19c7ac27
MB		 403static ssize_t platform_list_read_file(struct file *file,
404 char __user *user_buf,
405 size_t count, loff_t *ppos)
406{
407 char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
2b194f9d 408 ssize_t len, ret = 0;
19c7ac27
MB		 409 struct snd_soc_platform *platform;
410
411 if (!buf)
412 return -ENOMEM;
413
2b194f9d
MB		 414 list_for_each_entry(platform, &platform_list, list) {
415 len = snprintf(buf + ret, PAGE_SIZE - ret, "%s\n",
416 platform->name);
417 if (len >= 0)
418 ret += len;
419 if (ret > PAGE_SIZE) {
420 ret = PAGE_SIZE;
421 break;
422 }
423 }
19c7ac27 424
2b194f9d 425 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret);
19c7ac27
MB		 426
427 kfree(buf);
428
429 return ret;
430}
431
432static const struct file_operations platform_list_fops = {
433 .read = platform_list_read_file,
434 .llseek = default_llseek,/* read accesses f_pos */
435};
436
a6052154
JN		 437static void soc_init_card_debugfs(struct snd_soc_card *card)
438{
439 card->debugfs_card_root = debugfs_create_dir(card->name,
8a9dab1a 440 snd_soc_debugfs_root);
3a45b867 441 if (!card->debugfs_card_root) {
a6052154 442 dev_warn(card->dev,
7c08be84 443 "ASoC: Failed to create card debugfs directory\n");
3a45b867
JN		 444 return;
445 }
446
447 card->debugfs_pop_time = debugfs_create_u32("dapm_pop_time", 0644,
448 card->debugfs_card_root,
449 &card->pop_time);
450 if (!card->debugfs_pop_time)
451 dev_warn(card->dev,
f110bfc7 452 "ASoC: Failed to create pop time debugfs file\n");
a6052154
JN		 453}
454
455static void soc_cleanup_card_debugfs(struct snd_soc_card *card)
456{
457 debugfs_remove_recursive(card->debugfs_card_root);
458}
459
2624d5fa
MB		 460#else
461
462static inline void soc_init_codec_debugfs(struct snd_soc_codec *codec)
463{
464}
465
466static inline void soc_cleanup_codec_debugfs(struct snd_soc_codec *codec)
467{
468}
b95fccbc 469
731f1ab2
SG		 470static inline void soc_init_platform_debugfs(struct snd_soc_platform *platform)
471{
472}
473
474static inline void soc_cleanup_platform_debugfs(struct snd_soc_platform *platform)
475{
476}
477
b95fccbc
AL		 478static inline void soc_init_card_debugfs(struct snd_soc_card *card)
479{
480}
481
482static inline void soc_cleanup_card_debugfs(struct snd_soc_card *card)
483{
484}
2624d5fa
MB		 485#endif
486
47c88fff
LG		 487struct snd_pcm_substream *snd_soc_get_dai_substream(struct snd_soc_card *card,
488 const char *dai_link, int stream)
489{
490 int i;
491
492 for (i = 0; i < card->num_links; i++) {
493 if (card->rtd[i].dai_link->no_pcm &&
494 !strcmp(card->rtd[i].dai_link->name, dai_link))
495 return card->rtd[i].pcm->streams[stream].substream;
496 }
f110bfc7 497 dev_dbg(card->dev, "ASoC: failed to find dai link %s\n", dai_link);
47c88fff
LG		 498 return NULL;
499}
500EXPORT_SYMBOL_GPL(snd_soc_get_dai_substream);
501
502struct snd_soc_pcm_runtime *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
503 const char *dai_link)
504{
505 int i;
506
507 for (i = 0; i < card->num_links; i++) {
508 if (!strcmp(card->rtd[i].dai_link->name, dai_link))
509 return &card->rtd[i];
510 }
f110bfc7 511 dev_dbg(card->dev, "ASoC: failed to find rtd %s\n", dai_link);
47c88fff
LG		 512 return NULL;
513}
514EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime);
515
db2a4165
FM		 516#ifdef CONFIG_SND_SOC_AC97_BUS
517/* unregister ac97 codec */
518static int soc_ac97_dev_unregister(struct snd_soc_codec *codec)
519{
520 if (codec->ac97->dev.bus)
521 device_unregister(&codec->ac97->dev);
522 return 0;
523}
524
525/* stop no dev release warning */
526static void soc_ac97_device_release(struct device *dev){}
527
528/* register ac97 codec to bus */
529static int soc_ac97_dev_register(struct snd_soc_codec *codec)
530{
531 int err;
532
533 codec->ac97->dev.bus = &ac97_bus_type;
4ac5c61f 534 codec->ac97->dev.parent = codec->card->dev;
db2a4165
FM		 535 codec->ac97->dev.release = soc_ac97_device_release;
536
bb072bf0 537 dev_set_name(&codec->ac97->dev, "%d-%d:%s",
f0fba2ad 538 codec->card->snd_card->number, 0, codec->name);
db2a4165
FM		 539 err = device_register(&codec->ac97->dev);
540 if (err < 0) {
f110bfc7 541 dev_err(codec->dev, "ASoC: Can't register ac97 bus\n");
db2a4165
FM		 542 codec->ac97->dev.bus = NULL;
543 return err;
544 }
545 return 0;
546}
547#endif
548
9d58a077
RF		 549static void codec2codec_close_delayed_work(struct work_struct *work)
550{
551 /* Currently nothing to do for c2c links
552 * Since c2c links are internal nodes in the DAPM graph and
553 * don't interface with the outside world or application layer
554 * we don't have to do any special handling on close.
555 */
556}
557
6f8ab4ac 558#ifdef CONFIG_PM_SLEEP
db2a4165 559/* powers down audio subsystem for suspend */
6f8ab4ac 560int snd_soc_suspend(struct device *dev)
db2a4165 561{
6f8ab4ac 562 struct snd_soc_card *card = dev_get_drvdata(dev);
2eea392d 563 struct snd_soc_codec *codec;
db2a4165
FM		 564 int i;
565
e3509ff0
DM		 566 /* If the initialization of this soc device failed, there is no codec
567 * associated with it. Just bail out in this case.
568 */
f0fba2ad 569 if (list_empty(&card->codec_dev_list))
e3509ff0
DM		 570 return 0;
571
6ed25978
AG		 572 /* Due to the resume being scheduled into a workqueue we could
573 * suspend before that's finished - wait for it to complete.
574 */
f0fba2ad
LG		 575 snd_power_lock(card->snd_card);
576 snd_power_wait(card->snd_card, SNDRV_CTL_POWER_D0);
577 snd_power_unlock(card->snd_card);
6ed25978
AG		 578
579 /* we're going to block userspace touching us until resume completes */
f0fba2ad 580 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D3hot);
6ed25978 581
a00f90f9 582 /* mute any active DACs */
f0fba2ad
LG		 583 for (i = 0; i < card->num_rtd; i++) {
584 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
585 struct snd_soc_dai_driver *drv = dai->driver;
3efab7dc 586
f0fba2ad 587 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 588 continue;
589
f0fba2ad
LG		 590 if (drv->ops->digital_mute && dai->playback_active)
591 drv->ops->digital_mute(dai, 1);
db2a4165
FM		 592 }
593
4ccab3e7 594 /* suspend all pcms */
f0fba2ad
LG		 595 for (i = 0; i < card->num_rtd; i++) {
596 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 597 continue;
598
f0fba2ad 599 snd_pcm_suspend_all(card->rtd[i].pcm);
3efab7dc 600 }
4ccab3e7 601
87506549 602 if (card->suspend_pre)
70b2ac12 603 card->suspend_pre(card);
db2a4165 604
f0fba2ad
LG		 605 for (i = 0; i < card->num_rtd; i++) {
606 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
607 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 608
f0fba2ad 609 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 610 continue;
611
f0fba2ad
LG		 612 if (cpu_dai->driver->suspend && !cpu_dai->driver->ac97_control)
613 cpu_dai->driver->suspend(cpu_dai);
614 if (platform->driver->suspend && !platform->suspended) {
615 platform->driver->suspend(cpu_dai);
616 platform->suspended = 1;
617 }
db2a4165
FM		 618 }
619
620 /* close any waiting streams and save state */
f0fba2ad 621 for (i = 0; i < card->num_rtd; i++) {
43829731 622 flush_delayed_work(&card->rtd[i].delayed_work);
ce6120cc 623 card->rtd[i].codec->dapm.suspend_bias_level = card->rtd[i].codec->dapm.bias_level;
f0fba2ad 624 }
db2a4165 625
f0fba2ad 626 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 627
f0fba2ad 628 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 629 continue;
630
7bd3a6f3
MB		 631 snd_soc_dapm_stream_event(&card->rtd[i],
632 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 633 SND_SOC_DAPM_STREAM_SUSPEND);
f0fba2ad 634
7bd3a6f3
MB		 635 snd_soc_dapm_stream_event(&card->rtd[i],
636 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 637 SND_SOC_DAPM_STREAM_SUSPEND);
db2a4165
FM		 638 }
639
e2d32ff6
MB		 640 /* Recheck all analogue paths too */
641 dapm_mark_io_dirty(&card->dapm);
642 snd_soc_dapm_sync(&card->dapm);
643
f0fba2ad 644 /* suspend all CODECs */
2eea392d 645 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 646 /* If there are paths active then the CODEC will be held with
647 * bias _ON and should not be suspended. */
648 if (!codec->suspended && codec->driver->suspend) {
ce6120cc 649 switch (codec->dapm.bias_level) {
f0fba2ad 650 case SND_SOC_BIAS_STANDBY:
125a25da
MB		 651 /*
652 * If the CODEC is capable of idle
653 * bias off then being in STANDBY
654 * means it's doing something,
655 * otherwise fall through.
656 */
657 if (codec->dapm.idle_bias_off) {
658 dev_dbg(codec->dev,
10e8aa9a 659 "ASoC: idle_bias_off CODEC on over suspend\n");
125a25da
MB		 660 break;
661 }
f0fba2ad 662 case SND_SOC_BIAS_OFF:
84b315ee 663 codec->driver->suspend(codec);
f0fba2ad 664 codec->suspended = 1;
7be4ba24 665 codec->cache_sync = 1;
da8b8e0f
MB		 666 if (codec->using_regmap)
667 regcache_mark_dirty(codec->control_data);
988e8cc4
NC		 668 /* deactivate pins to sleep state */
669 pinctrl_pm_select_sleep_state(codec->dev);
f0fba2ad
LG		 670 break;
671 default:
10e8aa9a
MM		 672 dev_dbg(codec->dev,
673 "ASoC: CODEC is on over suspend\n");
f0fba2ad
LG		 674 break;
675 }
1547aba9
MB		 676 }
677 }
db2a4165 678
f0fba2ad
LG		 679 for (i = 0; i < card->num_rtd; i++) {
680 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 681
f0fba2ad 682 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 683 continue;
684
f0fba2ad
LG		 685 if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control)
686 cpu_dai->driver->suspend(cpu_dai);
988e8cc4
NC		 687
688 /* deactivate pins to sleep state */
689 pinctrl_pm_select_sleep_state(cpu_dai->dev);
db2a4165
FM		 690 }
691
87506549 692 if (card->suspend_post)
70b2ac12 693 card->suspend_post(card);
db2a4165
FM		 694
695 return 0;
696}
6f8ab4ac 697EXPORT_SYMBOL_GPL(snd_soc_suspend);
db2a4165 698
6ed25978
AG		 699/* deferred resume work, so resume can complete before we finished
700 * setting our codec back up, which can be very slow on I2C
701 */
702static void soc_resume_deferred(struct work_struct *work)
db2a4165 703{
f0fba2ad
LG		 704 struct snd_soc_card *card =
705 container_of(work, struct snd_soc_card, deferred_resume_work);
2eea392d 706 struct snd_soc_codec *codec;
db2a4165
FM		 707 int i;
708
6ed25978
AG		 709 /* our power state is still SNDRV_CTL_POWER_D3hot from suspend time,
710 * so userspace apps are blocked from touching us
711 */
712
f110bfc7 713 dev_dbg(card->dev, "ASoC: starting resume work\n");
6ed25978 714
9949788b 715 /* Bring us up into D2 so that DAPM starts enabling things */
f0fba2ad 716 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D2);
9949788b 717
87506549 718 if (card->resume_pre)
70b2ac12 719 card->resume_pre(card);
db2a4165 720
f0fba2ad
LG		 721 /* resume AC97 DAIs */
722 for (i = 0; i < card->num_rtd; i++) {
723 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3efab7dc 724
f0fba2ad 725 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 726 continue;
727
f0fba2ad
LG		 728 if (cpu_dai->driver->resume && cpu_dai->driver->ac97_control)
729 cpu_dai->driver->resume(cpu_dai);
730 }
731
2eea392d 732 list_for_each_entry(codec, &card->codec_dev_list, card_list) {
f0fba2ad
LG		 733 /* If the CODEC was idle over suspend then it will have been
734 * left with bias OFF or STANDBY and suspended so we must now
735 * resume. Otherwise the suspend was suppressed.
736 */
737 if (codec->driver->resume && codec->suspended) {
ce6120cc 738 switch (codec->dapm.bias_level) {
f0fba2ad
LG		 739 case SND_SOC_BIAS_STANDBY:
740 case SND_SOC_BIAS_OFF:
741 codec->driver->resume(codec);
742 codec->suspended = 0;
743 break;
744 default:
10e8aa9a
MM		 745 dev_dbg(codec->dev,
746 "ASoC: CODEC was on over suspend\n");
f0fba2ad
LG		 747 break;
748 }
1547aba9
MB		 749 }
750 }
db2a4165 751
f0fba2ad 752 for (i = 0; i < card->num_rtd; i++) {
3efab7dc 753
f0fba2ad 754 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 755 continue;
756
7bd3a6f3 757 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 758 SNDRV_PCM_STREAM_PLAYBACK,
7bd3a6f3 759 SND_SOC_DAPM_STREAM_RESUME);
f0fba2ad 760
7bd3a6f3 761 snd_soc_dapm_stream_event(&card->rtd[i],
d9b0951b 762 SNDRV_PCM_STREAM_CAPTURE,
7bd3a6f3 763 SND_SOC_DAPM_STREAM_RESUME);
db2a4165
FM		 764 }
765
3ff3f64b 766 /* unmute any active DACs */
f0fba2ad
LG		 767 for (i = 0; i < card->num_rtd; i++) {
768 struct snd_soc_dai *dai = card->rtd[i].codec_dai;
769 struct snd_soc_dai_driver *drv = dai->driver;
3efab7dc 770
f0fba2ad 771 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 772 continue;
773
f0fba2ad
LG		 774 if (drv->ops->digital_mute && dai->playback_active)
775 drv->ops->digital_mute(dai, 0);
db2a4165
FM		 776 }
777
f0fba2ad
LG		 778 for (i = 0; i < card->num_rtd; i++) {
779 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
780 struct snd_soc_platform *platform = card->rtd[i].platform;
3efab7dc 781
f0fba2ad 782 if (card->rtd[i].dai_link->ignore_suspend)
3efab7dc
MB		 783 continue;
784
f0fba2ad
LG		 785 if (cpu_dai->driver->resume && !cpu_dai->driver->ac97_control)
786 cpu_dai->driver->resume(cpu_dai);
787 if (platform->driver->resume && platform->suspended) {
788 platform->driver->resume(cpu_dai);
789 platform->suspended = 0;
790 }
db2a4165
FM		 791 }
792
87506549 793 if (card->resume_post)
70b2ac12 794 card->resume_post(card);
db2a4165 795
f110bfc7 796 dev_dbg(card->dev, "ASoC: resume work completed\n");
6ed25978
AG		 797
798 /* userspace can access us now we are back as we were before */
f0fba2ad 799 snd_power_change_state(card->snd_card, SNDRV_CTL_POWER_D0);
e2d32ff6
MB		 800
801 /* Recheck all analogue paths too */
802 dapm_mark_io_dirty(&card->dapm);
803 snd_soc_dapm_sync(&card->dapm);
6ed25978
AG		 804}
805
806/* powers up audio subsystem after a suspend */
6f8ab4ac 807int snd_soc_resume(struct device *dev)
6ed25978 808{
6f8ab4ac 809 struct snd_soc_card *card = dev_get_drvdata(dev);
82e14e8b 810 int i, ac97_control = 0;
b9dd94a8 811
5ff1ddf2
EM		 812 /* If the initialization of this soc device failed, there is no codec
813 * associated with it. Just bail out in this case.
814 */
815 if (list_empty(&card->codec_dev_list))
816 return 0;
817
988e8cc4
NC		 818 /* activate pins from sleep state */
819 for (i = 0; i < card->num_rtd; i++) {
820 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
821 struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
822 if (cpu_dai->active)
823 pinctrl_pm_select_default_state(cpu_dai->dev);
824 if (codec_dai->active)
825 pinctrl_pm_select_default_state(codec_dai->dev);
826 }
827
64ab9baa
MB		 828 /* AC97 devices might have other drivers hanging off them so
829 * need to resume immediately. Other drivers don't have that
830 * problem and may take a substantial amount of time to resume
831 * due to I/O costs and anti-pop so handle them out of line.
832 */
f0fba2ad
LG		 833 for (i = 0; i < card->num_rtd; i++) {
834 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
82e14e8b
SW		 835 ac97_control |= cpu_dai->driver->ac97_control;
836 }
837 if (ac97_control) {
f110bfc7 838 dev_dbg(dev, "ASoC: Resuming AC97 immediately\n");
82e14e8b
SW		 839 soc_resume_deferred(&card->deferred_resume_work);
840 } else {
f110bfc7 841 dev_dbg(dev, "ASoC: Scheduling resume work\n");
82e14e8b 842 if (!schedule_work(&card->deferred_resume_work))
f110bfc7 843 dev_err(dev, "ASoC: resume work item may be lost\n");
64ab9baa 844 }
6ed25978 845
db2a4165
FM		 846 return 0;
847}
6f8ab4ac 848EXPORT_SYMBOL_GPL(snd_soc_resume);
db2a4165 849#else
6f8ab4ac
MB		 850#define snd_soc_suspend NULL
851#define snd_soc_resume NULL
db2a4165
FM		 852#endif
853
85e7652d 854static const struct snd_soc_dai_ops null_dai_ops = {
02a06d30
BS		 855};
856
f0fba2ad 857static int soc_bind_dai_link(struct snd_soc_card *card, int num)
db2a4165 858{
f0fba2ad
LG		 859 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
860 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1438c2f6 861 struct snd_soc_component *component;
fe3e78e0 862 struct snd_soc_codec *codec;
435c5e25 863 struct snd_soc_platform *platform;
f0fba2ad 864 struct snd_soc_dai *codec_dai, *cpu_dai;
848dd8be 865 const char *platform_name;
435c5e25 866
f110bfc7 867 dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num);
435c5e25 868
b19e6e7b 869 /* Find CPU DAI from registered DAIs*/
1438c2f6 870 list_for_each_entry(component, &component_list, list) {
bc92657a 871 if (dai_link->cpu_of_node &&
1438c2f6 872 component->dev->of_node != dai_link->cpu_of_node)
bc92657a
SW		 873 continue;
874 if (dai_link->cpu_name &&
1438c2f6 875 strcmp(dev_name(component->dev), dai_link->cpu_name))
bc92657a 876 continue;
1438c2f6
LPC		 877 list_for_each_entry(cpu_dai, &component->dai_list, list) {
878 if (dai_link->cpu_dai_name &&
879 strcmp(cpu_dai->name, dai_link->cpu_dai_name))
880 continue;
2610ab77 881
1438c2f6
LPC		 882 rtd->cpu_dai = cpu_dai;
883 }
435c5e25 884 }
6308419a 885
b19e6e7b 886 if (!rtd->cpu_dai) {
f110bfc7 887 dev_err(card->dev, "ASoC: CPU DAI %s not registered\n",
b19e6e7b
MB		 888 dai_link->cpu_dai_name);
889 return -EPROBE_DEFER;
f0fba2ad
LG		 890 }
891
b19e6e7b 892 /* Find CODEC from registered CODECs */
f0fba2ad 893 list_for_each_entry(codec, &codec_list, list) {
5a504963
SW		 894 if (dai_link->codec_of_node) {
895 if (codec->dev->of_node != dai_link->codec_of_node)
896 continue;
897 } else {
898 if (strcmp(codec->name, dai_link->codec_name))
899 continue;
900 }
2610ab77
SW		 901
902 rtd->codec = codec;
903
904 /*
905 * CODEC found, so find CODEC DAI from registered DAIs from
906 * this CODEC
907 */
1438c2f6
LPC		 908 list_for_each_entry(codec_dai, &codec->component.dai_list, list) {
909 if (!strcmp(codec_dai->name, dai_link->codec_dai_name)) {
2610ab77 910 rtd->codec_dai = codec_dai;
1438c2f6 911 break;
2610ab77 912 }
435c5e25 913 }
2610ab77 914
b19e6e7b 915 if (!rtd->codec_dai) {
f110bfc7 916 dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n",
b19e6e7b
MB		 917 dai_link->codec_dai_name);
918 return -EPROBE_DEFER;
919 }
f0fba2ad 920 }
6b05eda6 921
b19e6e7b 922 if (!rtd->codec) {
f110bfc7 923 dev_err(card->dev, "ASoC: CODEC %s not registered\n",
b19e6e7b
MB		 924 dai_link->codec_name);
925 return -EPROBE_DEFER;
926 }
848dd8be
MB		 927
928 /* if there's no platform we match on the empty platform */
929 platform_name = dai_link->platform_name;
5a504963 930 if (!platform_name && !dai_link->platform_of_node)
848dd8be
MB		 931 platform_name = "snd-soc-dummy";
932
b19e6e7b 933 /* find one from the set of registered platforms */
f0fba2ad 934 list_for_each_entry(platform, &platform_list, list) {
5a504963
SW		 935 if (dai_link->platform_of_node) {
936 if (platform->dev->of_node !=
937 dai_link->platform_of_node)
938 continue;
939 } else {
940 if (strcmp(platform->name, platform_name))
941 continue;
942 }
2610ab77
SW		 943
944 rtd->platform = platform;
02a06d30 945 }
b19e6e7b 946 if (!rtd->platform) {
f110bfc7 947 dev_err(card->dev, "ASoC: platform %s not registered\n",
f0fba2ad 948 dai_link->platform_name);
b19e6e7b 949 return -EPROBE_DEFER;
f0fba2ad 950 }
b19e6e7b
MB		 951
952 card->num_rtd++;
953
954 return 0;
f0fba2ad
LG		 955}
956
d12cd198
SW		 957static int soc_remove_platform(struct snd_soc_platform *platform)
958{
959 int ret;
960
961 if (platform->driver->remove) {
962 ret = platform->driver->remove(platform);
963 if (ret < 0)
f110bfc7
LG		 964 dev_err(platform->dev, "ASoC: failed to remove %d\n",
965 ret);
d12cd198
SW		 966 }
967
968 /* Make sure all DAPM widgets are freed */
969 snd_soc_dapm_free(&platform->dapm);
970
971 soc_cleanup_platform_debugfs(platform);
972 platform->probed = 0;
973 list_del(&platform->card_list);
974 module_put(platform->dev->driver->owner);
975
976 return 0;
977}
978
589c3563
JN		 979static void soc_remove_codec(struct snd_soc_codec *codec)
980{
981 int err;
982
983 if (codec->driver->remove) {
984 err = codec->driver->remove(codec);
985 if (err < 0)
f110bfc7 986 dev_err(codec->dev, "ASoC: failed to remove %d\n", err);
589c3563
JN		 987 }
988
989 /* Make sure all DAPM widgets are freed */
990 snd_soc_dapm_free(&codec->dapm);
991
992 soc_cleanup_codec_debugfs(codec);
993 codec->probed = 0;
994 list_del(&codec->card_list);
995 module_put(codec->dev->driver->owner);
996}
997
62ae68fa 998static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 999{
1000 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
f0fba2ad
LG		 1001 struct snd_soc_dai *codec_dai = rtd->codec_dai, *cpu_dai = rtd->cpu_dai;
1002 int err;
1003
1004 /* unregister the rtd device */
1005 if (rtd->dev_registered) {
36ae1a96
MB		 1006 device_remove_file(rtd->dev, &dev_attr_pmdown_time);
1007 device_remove_file(rtd->dev, &dev_attr_codec_reg);
1008 device_unregister(rtd->dev);
f0fba2ad
LG		 1009 rtd->dev_registered = 0;
1010 }
1011
1012 /* remove the CODEC DAI */
0168bf0d
LG		 1013 if (codec_dai && codec_dai->probed &&
1014 codec_dai->driver->remove_order == order) {
f0fba2ad
LG		 1015 if (codec_dai->driver->remove) {
1016 err = codec_dai->driver->remove(codec_dai);
1017 if (err < 0)
f110bfc7
LG		 1018 dev_err(codec_dai->dev,
1019 "ASoC: failed to remove %s: %d\n",
1020 codec_dai->name, err);
6b05eda6 1021 }
f0fba2ad
LG		 1022 codec_dai->probed = 0;
1023 list_del(&codec_dai->card_list);
1024 }
6b05eda6 1025
f0fba2ad 1026 /* remove the cpu_dai */
0168bf0d
LG		 1027 if (cpu_dai && cpu_dai->probed &&
1028 cpu_dai->driver->remove_order == order) {
f0fba2ad
LG		 1029 if (cpu_dai->driver->remove) {
1030 err = cpu_dai->driver->remove(cpu_dai);
1031 if (err < 0)
f110bfc7
LG		 1032 dev_err(cpu_dai->dev,
1033 "ASoC: failed to remove %s: %d\n",
1034 cpu_dai->name, err);
db2a4165 1035 }
f0fba2ad
LG		 1036 cpu_dai->probed = 0;
1037 list_del(&cpu_dai->card_list);
a9db7dbe 1038
18d75644
SW		 1039 if (!cpu_dai->codec) {
1040 snd_soc_dapm_free(&cpu_dai->dapm);
a9db7dbe 1041 module_put(cpu_dai->dev->driver->owner);
18d75644 1042 }
db2a4165 1043 }
f0fba2ad 1044}
db2a4165 1045
62ae68fa
SW		 1046static void soc_remove_link_components(struct snd_soc_card *card, int num,
1047 int order)
1048{
1049 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1050 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1051 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1052 struct snd_soc_platform *platform = rtd->platform;
1053 struct snd_soc_codec *codec;
1054
1055 /* remove the platform */
1056 if (platform && platform->probed &&
1057 platform->driver->remove_order == order) {
1058 soc_remove_platform(platform);
1059 }
1060
1061 /* remove the CODEC-side CODEC */
1062 if (codec_dai) {
1063 codec = codec_dai->codec;
1064 if (codec && codec->probed &&
1065 codec->driver->remove_order == order)
1066 soc_remove_codec(codec);
1067 }
1068
1069 /* remove any CPU-side CODEC */
1070 if (cpu_dai) {
1071 codec = cpu_dai->codec;
1072 if (codec && codec->probed &&
1073 codec->driver->remove_order == order)
1074 soc_remove_codec(codec);
1075 }
1076}
1077
0671fd8e
KM		 1078static void soc_remove_dai_links(struct snd_soc_card *card)
1079{
0168bf0d 1080 int dai, order;
0671fd8e 1081
0168bf0d
LG		 1082 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1083 order++) {
1084 for (dai = 0; dai < card->num_rtd; dai++)
62ae68fa
SW		 1085 soc_remove_link_dais(card, dai, order);
1086 }
1087
1088 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1089 order++) {
1090 for (dai = 0; dai < card->num_rtd; dai++)
1091 soc_remove_link_components(card, dai, order);
0168bf0d 1092 }
62ae68fa 1093
0671fd8e
KM		 1094 card->num_rtd = 0;
1095}
1096
ead9b919
JN		 1097static void soc_set_name_prefix(struct snd_soc_card *card,
1098 struct snd_soc_codec *codec)
1099{
1100 int i;
1101
ff819b83 1102 if (card->codec_conf == NULL)
ead9b919
JN		 1103 return;
1104
ff819b83
DP		 1105 for (i = 0; i < card->num_configs; i++) {
1106 struct snd_soc_codec_conf *map = &card->codec_conf[i];
ead9b919
JN		 1107 if (map->dev_name && !strcmp(codec->name, map->dev_name)) {
1108 codec->name_prefix = map->name_prefix;
1109 break;
1110 }
1111 }
1112}
1113
589c3563
JN		 1114static int soc_probe_codec(struct snd_soc_card *card,
1115 struct snd_soc_codec *codec)
1116{
1117 int ret = 0;
89b95ac0 1118 const struct snd_soc_codec_driver *driver = codec->driver;
888df395 1119 struct snd_soc_dai *dai;
589c3563
JN		 1120
1121 codec->card = card;
1122 codec->dapm.card = card;
1123 soc_set_name_prefix(card, codec);
1124
70d29331
JN		 1125 if (!try_module_get(codec->dev->driver->owner))
1126 return -ENODEV;
1127
d5d1e0be
LPC		 1128 soc_init_codec_debugfs(codec);
1129
77530150
LPC		 1130 if (driver->dapm_widgets)
1131 snd_soc_dapm_new_controls(&codec->dapm, driver->dapm_widgets,
1132 driver->num_dapm_widgets);
1133
888df395 1134 /* Create DAPM widgets for each DAI stream */
1438c2f6 1135 list_for_each_entry(dai, &codec->component.dai_list, list)
888df395 1136 snd_soc_dapm_new_dai_widgets(&codec->dapm, dai);
888df395 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;
1438c2f6 1183 struct snd_soc_component *component;
be09ad90 1184 struct snd_soc_dai *dai;
956245e9
LG		 1185
1186 platform->card = card;
b7950641 1187 platform->dapm.card = card;
956245e9
LG		 1188
1189 if (!try_module_get(platform->dev->driver->owner))
1190 return -ENODEV;
1191
731f1ab2
SG		 1192 soc_init_platform_debugfs(platform);
1193
cb2cf612
LG		 1194 if (driver->dapm_widgets)
1195 snd_soc_dapm_new_controls(&platform->dapm,
1196 driver->dapm_widgets, driver->num_dapm_widgets);
1197
be09ad90 1198 /* Create DAPM widgets for each DAI stream */
1438c2f6
LPC		 1199 list_for_each_entry(component, &component_list, list) {
1200 if (component->dev != platform->dev)
be09ad90 1201 continue;
1438c2f6
LPC		 1202 list_for_each_entry(dai, &component->dai_list, list)
1203 snd_soc_dapm_new_dai_widgets(&platform->dapm, dai);
be09ad90
LG		 1204 }
1205
3fec6b6d
SW		 1206 platform->dapm.idle_bias_off = 1;
1207
956245e9
LG		 1208 if (driver->probe) {
1209 ret = driver->probe(platform);
1210 if (ret < 0) {
1211 dev_err(platform->dev,
f110bfc7 1212 "ASoC: failed to probe platform %d\n", ret);
956245e9
LG		 1213 goto err_probe;
1214 }
1215 }
1216
cb2cf612
LG		 1217 if (driver->controls)
1218 snd_soc_add_platform_controls(platform, driver->controls,
1219 driver->num_controls);
1220 if (driver->dapm_routes)
1221 snd_soc_dapm_add_routes(&platform->dapm, driver->dapm_routes,
1222 driver->num_dapm_routes);
1223
956245e9
LG		 1224 /* mark platform as probed and add to card platform list */
1225 platform->probed = 1;
1226 list_add(&platform->card_list, &card->platform_dev_list);
b7950641 1227 list_add(&platform->dapm.list, &card->dapm_list);
956245e9
LG		 1228
1229 return 0;
1230
1231err_probe:
02db1103 1232 soc_cleanup_platform_debugfs(platform);
956245e9
LG		 1233 module_put(platform->dev->driver->owner);
1234
1235 return ret;
1236}
1237
36ae1a96
MB		 1238static void rtd_release(struct device *dev)
1239{
1240 kfree(dev);
1241}
f0fba2ad 1242
589c3563
JN		 1243static int soc_post_component_init(struct snd_soc_card *card,
1244 struct snd_soc_codec *codec,
1245 int num, int dailess)
1246{
1247 struct snd_soc_dai_link *dai_link = NULL;
1248 struct snd_soc_aux_dev *aux_dev = NULL;
1249 struct snd_soc_pcm_runtime *rtd;
1250 const char *temp, *name;
1251 int ret = 0;
1252
1253 if (!dailess) {
1254 dai_link = &card->dai_link[num];
1255 rtd = &card->rtd[num];
1256 name = dai_link->name;
1257 } else {
1258 aux_dev = &card->aux_dev[num];
1259 rtd = &card->rtd_aux[num];
1260 name = aux_dev->name;
1261 }
0962bb21 1262 rtd->card = card;
589c3563
JN		 1263
1264 /* machine controls, routes and widgets are not prefixed */
1265 temp = codec->name_prefix;
1266 codec->name_prefix = NULL;
1267
1268 /* do machine specific initialization */
1269 if (!dailess && dai_link->init)
1270 ret = dai_link->init(rtd);
1271 else if (dailess && aux_dev->init)
1272 ret = aux_dev->init(&codec->dapm);
1273 if (ret < 0) {
f110bfc7 1274 dev_err(card->dev, "ASoC: failed to init %s: %d\n", name, ret);
589c3563
JN		 1275 return ret;
1276 }
1277 codec->name_prefix = temp;
1278
589c3563
JN		 1279 /* register the rtd device */
1280 rtd->codec = codec;
36ae1a96
MB		 1281
1282 rtd->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
1283 if (!rtd->dev)
1284 return -ENOMEM;
1285 device_initialize(rtd->dev);
1286 rtd->dev->parent = card->dev;
1287 rtd->dev->release = rtd_release;
1288 rtd->dev->init_name = name;
1289 dev_set_drvdata(rtd->dev, rtd);
b8c0dab9 1290 mutex_init(&rtd->pcm_mutex);
01d7584c
LG		 1291 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].be_clients);
1292 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].be_clients);
1293 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_PLAYBACK].fe_clients);
1294 INIT_LIST_HEAD(&rtd->dpcm[SNDRV_PCM_STREAM_CAPTURE].fe_clients);
36ae1a96 1295 ret = device_add(rtd->dev);
589c3563 1296 if (ret < 0) {
865df9cb
CL		 1297 /* calling put_device() here to free the rtd->dev */
1298 put_device(rtd->dev);
589c3563 1299 dev_err(card->dev,
f110bfc7 1300 "ASoC: failed to register runtime device: %d\n", ret);
589c3563
JN		 1301 return ret;
1302 }
1303 rtd->dev_registered = 1;
1304
1305 /* add DAPM sysfs entries for this codec */
36ae1a96 1306 ret = snd_soc_dapm_sys_add(rtd->dev);
589c3563
JN		 1307 if (ret < 0)
1308 dev_err(codec->dev,
f110bfc7 1309 "ASoC: failed to add codec dapm sysfs entries: %d\n", ret);
589c3563
JN		 1310
1311 /* add codec sysfs entries */
36ae1a96 1312 ret = device_create_file(rtd->dev, &dev_attr_codec_reg);
589c3563
JN		 1313 if (ret < 0)
1314 dev_err(codec->dev,
f110bfc7 1315 "ASoC: failed to add codec sysfs files: %d\n", ret);
589c3563 1316
f86dcef8
LG		 1317#ifdef CONFIG_DEBUG_FS
1318 /* add DPCM sysfs entries */
cd0f8911 1319 if (!dailess && !dai_link->dynamic)
f86dcef8
LG		 1320 goto out;
1321
1322 ret = soc_dpcm_debugfs_add(rtd);
1323 if (ret < 0)
f110bfc7 1324 dev_err(rtd->dev, "ASoC: failed to add dpcm sysfs entries: %d\n", ret);
f86dcef8
LG		 1325
1326out:
1327#endif
589c3563
JN		 1328 return 0;
1329}
1330
62ae68fa
SW		 1331static int soc_probe_link_components(struct snd_soc_card *card, int num,
1332 int order)
1333{
1334 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1335 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1336 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1337 struct snd_soc_platform *platform = rtd->platform;
1338 int ret;
1339
1340 /* probe the CPU-side component, if it is a CODEC */
1341 if (cpu_dai->codec &&
1342 !cpu_dai->codec->probed &&
1343 cpu_dai->codec->driver->probe_order == order) {
1344 ret = soc_probe_codec(card, cpu_dai->codec);
1345 if (ret < 0)
1346 return ret;
1347 }
1348
1349 /* probe the CODEC-side component */
1350 if (!codec_dai->codec->probed &&
1351 codec_dai->codec->driver->probe_order == order) {
1352 ret = soc_probe_codec(card, codec_dai->codec);
1353 if (ret < 0)
1354 return ret;
1355 }
1356
1357 /* probe the platform */
1358 if (!platform->probed &&
1359 platform->driver->probe_order == order) {
1360 ret = soc_probe_platform(card, platform);
1361 if (ret < 0)
1362 return ret;
1363 }
1364
1365 return 0;
1366}
1367
1368static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order)
f0fba2ad
LG		 1369{
1370 struct snd_soc_dai_link *dai_link = &card->dai_link[num];
1371 struct snd_soc_pcm_runtime *rtd = &card->rtd[num];
1372 struct snd_soc_codec *codec = rtd->codec;
1373 struct snd_soc_platform *platform = rtd->platform;
c74184ed
MB		 1374 struct snd_soc_dai *codec_dai = rtd->codec_dai;
1375 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
1376 struct snd_soc_dapm_widget *play_w, *capture_w;
f0fba2ad
LG		 1377 int ret;
1378
f110bfc7 1379 dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n",
0168bf0d 1380 card->name, num, order);
f0fba2ad
LG		 1381
1382 /* config components */
f0fba2ad 1383 cpu_dai->platform = platform;
f0fba2ad
LG		 1384 codec_dai->card = card;
1385 cpu_dai->card = card;
1386
1387 /* set default power off timeout */
1388 rtd->pmdown_time = pmdown_time;
1389
1390 /* probe the cpu_dai */
0168bf0d
LG		 1391 if (!cpu_dai->probed &&
1392 cpu_dai->driver->probe_order == order) {
a9db7dbe
SW		 1393 if (!cpu_dai->codec) {
1394 cpu_dai->dapm.card = card;
1395 if (!try_module_get(cpu_dai->dev->driver->owner))
1396 return -ENODEV;
61b61e3c 1397
18d75644 1398 list_add(&cpu_dai->dapm.list, &card->dapm_list);
a9db7dbe 1399 }
be09ad90 1400
f0fba2ad
LG		 1401 if (cpu_dai->driver->probe) {
1402 ret = cpu_dai->driver->probe(cpu_dai);
1403 if (ret < 0) {
f110bfc7
LG		 1404 dev_err(cpu_dai->dev,
1405 "ASoC: failed to probe CPU DAI %s: %d\n",
1406 cpu_dai->name, ret);
61b61e3c 1407 module_put(cpu_dai->dev->driver->owner);
f0fba2ad
LG		 1408 return ret;
1409 }
1410 }
1411 cpu_dai->probed = 1;
1c8371d6 1412 /* mark cpu_dai as probed and add to card dai list */
f0fba2ad 1413 list_add(&cpu_dai->card_list, &card->dai_dev_list);
db2a4165
FM		 1414 }
1415
f0fba2ad 1416 /* probe the CODEC DAI */
0168bf0d 1417 if (!codec_dai->probed && codec_dai->driver->probe_order == order) {
f0fba2ad
LG		 1418 if (codec_dai->driver->probe) {
1419 ret = codec_dai->driver->probe(codec_dai);
fe3e78e0 1420 if (ret < 0) {
f110bfc7
LG		 1421 dev_err(codec_dai->dev,
1422 "ASoC: failed to probe CODEC DAI %s: %d\n",
1423 codec_dai->name, ret);
f0fba2ad 1424 return ret;
fe3e78e0
MB		 1425 }
1426 }
f0fba2ad 1427
1c8371d6 1428 /* mark codec_dai as probed and add to card dai list */
f0fba2ad
LG		 1429 codec_dai->probed = 1;
1430 list_add(&codec_dai->card_list, &card->dai_dev_list);
fe3e78e0
MB		 1431 }
1432
0168bf0d
LG		 1433 /* complete DAI probe during last probe */
1434 if (order != SND_SOC_COMP_ORDER_LAST)
1435 return 0;
1436
589c3563
JN		 1437 ret = soc_post_component_init(card, codec, num, 0);
1438 if (ret)
f0fba2ad 1439 return ret;
fe3e78e0 1440
36ae1a96 1441 ret = device_create_file(rtd->dev, &dev_attr_pmdown_time);
f0fba2ad 1442 if (ret < 0)
f110bfc7
LG		 1443 dev_warn(rtd->dev, "ASoC: failed to add pmdown_time sysfs: %d\n",
1444 ret);
f0fba2ad 1445
1245b700
NK		 1446 if (cpu_dai->driver->compress_dai) {
1447 /*create compress_device"*/
1448 ret = soc_new_compress(rtd, num);
c74184ed 1449 if (ret < 0) {
f110bfc7 1450 dev_err(card->dev, "ASoC: can't create compress %s\n",
1245b700 1451 dai_link->stream_name);
c74184ed
MB		 1452 return ret;
1453 }
1454 } else {
1245b700
NK		 1455
1456 if (!dai_link->params) {
1457 /* create the pcm */
1458 ret = soc_new_pcm(rtd, num);
1459 if (ret < 0) {
f110bfc7 1460 dev_err(card->dev, "ASoC: can't create pcm %s :%d\n",
1245b700 1461 dai_link->stream_name, ret);
c74184ed
MB		 1462 return ret;
1463 }
1245b700 1464 } else {
9d58a077
RF		 1465 INIT_DELAYED_WORK(&rtd->delayed_work,
1466 codec2codec_close_delayed_work);
1467
1245b700
NK		 1468 /* link the DAI widgets */
1469 play_w = codec_dai->playback_widget;
1470 capture_w = cpu_dai->capture_widget;
1471 if (play_w && capture_w) {
1472 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
1473 capture_w, play_w);
1474 if (ret != 0) {
f110bfc7 1475 dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
1245b700
NK		 1476 play_w->name, capture_w->name, ret);
1477 return ret;
1478 }
1479 }
c74184ed 1480
1245b700
NK		 1481 play_w = cpu_dai->playback_widget;
1482 capture_w = codec_dai->capture_widget;
1483 if (play_w && capture_w) {
1484 ret = snd_soc_dapm_new_pcm(card, dai_link->params,
c74184ed 1485 capture_w, play_w);
1245b700 1486 if (ret != 0) {
f110bfc7 1487 dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n",
1245b700
NK		 1488 play_w->name, capture_w->name, ret);
1489 return ret;
1490 }
c74184ed
MB		 1491 }
1492 }
f0fba2ad
LG		 1493 }
1494
1495 /* add platform data for AC97 devices */
1496 if (rtd->codec_dai->driver->ac97_control)
1497 snd_ac97_dev_add_pdata(codec->ac97, rtd->cpu_dai->ac97_pdata);
1498
1499 return 0;
1500}
1501
fe3e78e0 1502#ifdef CONFIG_SND_SOC_AC97_BUS
f0fba2ad
LG		 1503static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd)
1504{
1505 int ret;
1506
fe3e78e0
MB		 1507 /* Only instantiate AC97 if not already done by the adaptor
1508 * for the generic AC97 subsystem.
1509 */
f0fba2ad 1510 if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) {
0562f788
MW		 1511 /*
1512 * It is possible that the AC97 device is already registered to
1513 * the device subsystem. This happens when the device is created
1514 * via snd_ac97_mixer(). Currently only SoC codec that does so
1515 * is the generic AC97 glue but others migh emerge.
1516 *
1517 * In those cases we don't try to register the device again.
1518 */
1519 if (!rtd->codec->ac97_created)
1520 return 0;
f0fba2ad
LG		 1521
1522 ret = soc_ac97_dev_register(rtd->codec);
fe3e78e0 1523 if (ret < 0) {
f110bfc7
LG		 1524 dev_err(rtd->codec->dev,
1525 "ASoC: AC97 device register failed: %d\n", ret);
f0fba2ad 1526 return ret;
fe3e78e0 1527 }
f0fba2ad
LG		 1528
1529 rtd->codec->ac97_registered = 1;
fe3e78e0 1530 }
f0fba2ad
LG		 1531 return 0;
1532}
1533
1534static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec)
1535{
1536 if (codec->ac97_registered) {
1537 soc_ac97_dev_unregister(codec);
1538 codec->ac97_registered = 0;
1539 }
1540}
fe3e78e0
MB		 1541#endif
1542
b19e6e7b
MB		 1543static int soc_check_aux_dev(struct snd_soc_card *card, int num)
1544{
1545 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
1546 struct snd_soc_codec *codec;
1547
1548 /* find CODEC from registered CODECs*/
1549 list_for_each_entry(codec, &codec_list, list) {
1550 if (!strcmp(codec->name, aux_dev->codec_name))
1551 return 0;
1552 }
1553
f110bfc7 1554 dev_err(card->dev, "ASoC: %s not registered\n", aux_dev->codec_name);
fb099cb7 1555
b19e6e7b
MB		 1556 return -EPROBE_DEFER;
1557}
1558
2eea392d
JN		 1559static int soc_probe_aux_dev(struct snd_soc_card *card, int num)
1560{
1561 struct snd_soc_aux_dev *aux_dev = &card->aux_dev[num];
2eea392d 1562 struct snd_soc_codec *codec;
676ad98a 1563 int ret = -ENODEV;
2eea392d
JN		 1564
1565 /* find CODEC from registered CODECs*/
1566 list_for_each_entry(codec, &codec_list, list) {
1567 if (!strcmp(codec->name, aux_dev->codec_name)) {
1568 if (codec->probed) {
1569 dev_err(codec->dev,
f110bfc7 1570 "ASoC: codec already probed");
2eea392d
JN		 1571 ret = -EBUSY;
1572 goto out;
1573 }
676ad98a 1574 goto found;
2eea392d
JN		 1575 }
1576 }
676ad98a 1577 /* codec not found */
f110bfc7 1578 dev_err(card->dev, "ASoC: codec %s not found", aux_dev->codec_name);
b19e6e7b 1579 return -EPROBE_DEFER;
2eea392d 1580
676ad98a 1581found:
589c3563 1582 ret = soc_probe_codec(card, codec);
2eea392d 1583 if (ret < 0)
589c3563 1584 return ret;
2eea392d 1585
589c3563 1586 ret = soc_post_component_init(card, codec, num, 1);
2eea392d
JN		 1587
1588out:
1589 return ret;
1590}
1591
1592static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
1593{
1594 struct snd_soc_pcm_runtime *rtd = &card->rtd_aux[num];
1595 struct snd_soc_codec *codec = rtd->codec;
2eea392d
JN		 1596
1597 /* unregister the rtd device */
1598 if (rtd->dev_registered) {
36ae1a96 1599 device_remove_file(rtd->dev, &dev_attr_codec_reg);
d3bf1561 1600 device_unregister(rtd->dev);
2eea392d
JN		 1601 rtd->dev_registered = 0;
1602 }
1603
589c3563
JN		 1604 if (codec && codec->probed)
1605 soc_remove_codec(codec);
2eea392d
JN		 1606}
1607
f90fb3f7 1608static int snd_soc_init_codec_cache(struct snd_soc_codec *codec)
fdf0f54d
DP		 1609{
1610 int ret;
1611
1612 if (codec->cache_init)
1613 return 0;
1614
fdf0f54d
DP		 1615 ret = snd_soc_cache_init(codec);
1616 if (ret < 0) {
10e8aa9a
MM		 1617 dev_err(codec->dev,
1618 "ASoC: Failed to set cache compression type: %d\n",
1619 ret);
fdf0f54d
DP		 1620 return ret;
1621 }
1622 codec->cache_init = 1;
1623 return 0;
1624}
1625
b19e6e7b 1626static int snd_soc_instantiate_card(struct snd_soc_card *card)
f0fba2ad 1627{
fdf0f54d 1628 struct snd_soc_codec *codec;
75d9ac46 1629 struct snd_soc_dai_link *dai_link;
f04209a7 1630 int ret, i, order, dai_fmt;
fe3e78e0 1631
01b9d99a 1632 mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);
dbe21408 1633
f0fba2ad 1634 /* bind DAIs */
b19e6e7b
MB		 1635 for (i = 0; i < card->num_links; i++) {
1636 ret = soc_bind_dai_link(card, i);
1637 if (ret != 0)
1638 goto base_error;
1639 }
fe3e78e0 1640
b19e6e7b
MB		 1641 /* check aux_devs too */
1642 for (i = 0; i < card->num_aux_devs; i++) {
1643 ret = soc_check_aux_dev(card, i);
1644 if (ret != 0)
1645 goto base_error;
f0fba2ad 1646 }
435c5e25 1647
fdf0f54d
DP		 1648 /* initialize the register cache for each available codec */
1649 list_for_each_entry(codec, &codec_list, list) {
1650 if (codec->cache_init)
1651 continue;
f90fb3f7 1652 ret = snd_soc_init_codec_cache(codec);
b19e6e7b
MB		 1653 if (ret < 0)
1654 goto base_error;
fdf0f54d
DP		 1655 }
1656
f0fba2ad
LG		 1657 /* card bind complete so register a sound card */
1658 ret = snd_card_create(SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
1659 card->owner, 0, &card->snd_card);
1660 if (ret < 0) {
10e8aa9a
MM		 1661 dev_err(card->dev,
1662 "ASoC: can't create sound card for card %s: %d\n",
1663 card->name, ret);
b19e6e7b 1664 goto base_error;
f0fba2ad
LG		 1665 }
1666 card->snd_card->dev = card->dev;
1667
e37a4970
MB		 1668 card->dapm.bias_level = SND_SOC_BIAS_OFF;
1669 card->dapm.dev = card->dev;
1670 card->dapm.card = card;
1671 list_add(&card->dapm.list, &card->dapm_list);
1672
d5d1e0be
LPC		 1673#ifdef CONFIG_DEBUG_FS
1674 snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root);
1675#endif
1676
88ee1c61 1677#ifdef CONFIG_PM_SLEEP
f0fba2ad
LG		 1678 /* deferred resume work */
1679 INIT_WORK(&card->deferred_resume_work, soc_resume_deferred);
1680#endif
db2a4165 1681
9a841ebb
MB		 1682 if (card->dapm_widgets)
1683 snd_soc_dapm_new_controls(&card->dapm, card->dapm_widgets,
1684 card->num_dapm_widgets);
1685
f0fba2ad
LG		 1686 /* initialise the sound card only once */
1687 if (card->probe) {
e7361ec4 1688 ret = card->probe(card);
f0fba2ad
LG		 1689 if (ret < 0)
1690 goto card_probe_error;
1691 }
fe3e78e0 1692
62ae68fa 1693 /* probe all components used by DAI links on this card */
0168bf0d
LG		 1694 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1695 order++) {
1696 for (i = 0; i < card->num_links; i++) {
62ae68fa 1697 ret = soc_probe_link_components(card, i, order);
0168bf0d 1698 if (ret < 0) {
f110bfc7
LG		 1699 dev_err(card->dev,
1700 "ASoC: failed to instantiate card %d\n",
1701 ret);
62ae68fa
SW		 1702 goto probe_dai_err;
1703 }
1704 }
1705 }
1706
1707 /* probe all DAI links on this card */
1708 for (order = SND_SOC_COMP_ORDER_FIRST; order <= SND_SOC_COMP_ORDER_LAST;
1709 order++) {
1710 for (i = 0; i < card->num_links; i++) {
1711 ret = soc_probe_link_dais(card, i, order);
1712 if (ret < 0) {
f110bfc7
LG		 1713 dev_err(card->dev,
1714 "ASoC: failed to instantiate card %d\n",
1715 ret);
0168bf0d
LG		 1716 goto probe_dai_err;
1717 }
f0fba2ad
LG		 1718 }
1719 }
db2a4165 1720
2eea392d
JN		 1721 for (i = 0; i < card->num_aux_devs; i++) {
1722 ret = soc_probe_aux_dev(card, i);
1723 if (ret < 0) {
f110bfc7
LG		 1724 dev_err(card->dev,
1725 "ASoC: failed to add auxiliary devices %d\n",
1726 ret);
2eea392d
JN		 1727 goto probe_aux_dev_err;
1728 }
1729 }
1730
888df395 1731 snd_soc_dapm_link_dai_widgets(card);
b893ea5f 1732 snd_soc_dapm_connect_dai_link_widgets(card);
888df395 1733
b7af1daf 1734 if (card->controls)
022658be 1735 snd_soc_add_card_controls(card, card->controls, card->num_controls);
b7af1daf 1736
b8ad29de
MB		 1737 if (card->dapm_routes)
1738 snd_soc_dapm_add_routes(&card->dapm, card->dapm_routes,
1739 card->num_dapm_routes);
1740
75d9ac46
MB		 1741 for (i = 0; i < card->num_links; i++) {
1742 dai_link = &card->dai_link[i];
f04209a7 1743 dai_fmt = dai_link->dai_fmt;
75d9ac46 1744
f04209a7 1745 if (dai_fmt) {
75d9ac46 1746 ret = snd_soc_dai_set_fmt(card->rtd[i].codec_dai,
f04209a7 1747 dai_fmt);
5e4ba569 1748 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46 1749 dev_warn(card->rtd[i].codec_dai->dev,
f110bfc7 1750 "ASoC: Failed to set DAI format: %d\n",
75d9ac46 1751 ret);
f04209a7
MB		 1752 }
1753
1754 /* If this is a regular CPU link there will be a platform */
fe33d4c5
SW		 1755 if (dai_fmt &&
1756 (dai_link->platform_name || dai_link->platform_of_node)) {
f04209a7
MB		 1757 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
1758 dai_fmt);
1759 if (ret != 0 && ret != -ENOTSUPP)
1760 dev_warn(card->rtd[i].cpu_dai->dev,
f110bfc7 1761 "ASoC: Failed to set DAI format: %d\n",
f04209a7
MB		 1762 ret);
1763 } else if (dai_fmt) {
1764 /* Flip the polarity for the "CPU" end */
1765 dai_fmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
1766 switch (dai_link->dai_fmt &
1767 SND_SOC_DAIFMT_MASTER_MASK) {
1768 case SND_SOC_DAIFMT_CBM_CFM:
1769 dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
1770 break;
1771 case SND_SOC_DAIFMT_CBM_CFS:
1772 dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
1773 break;
1774 case SND_SOC_DAIFMT_CBS_CFM:
1775 dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
1776 break;
1777 case SND_SOC_DAIFMT_CBS_CFS:
1778 dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
1779 break;
1780 }
75d9ac46
MB		 1781
1782 ret = snd_soc_dai_set_fmt(card->rtd[i].cpu_dai,
f04209a7 1783 dai_fmt);
5e4ba569 1784 if (ret != 0 && ret != -ENOTSUPP)
75d9ac46 1785 dev_warn(card->rtd[i].cpu_dai->dev,
f110bfc7 1786 "ASoC: Failed to set DAI format: %d\n",
75d9ac46
MB		 1787 ret);
1788 }
1789 }
1790
f0fba2ad 1791 snprintf(card->snd_card->shortname, sizeof(card->snd_card->shortname),
f0fba2ad 1792 "%s", card->name);
22de71ba
LG		 1793 snprintf(card->snd_card->longname, sizeof(card->snd_card->longname),
1794 "%s", card->long_name ? card->long_name : card->name);
f0e8ed85
MB		 1795 snprintf(card->snd_card->driver, sizeof(card->snd_card->driver),
1796 "%s", card->driver_name ? card->driver_name : card->name);
1797 for (i = 0; i < ARRAY_SIZE(card->snd_card->driver); i++) {
1798 switch (card->snd_card->driver[i]) {
1799 case '_':
1800 case '-':
1801 case '\0':
1802 break;
1803 default:
1804 if (!isalnum(card->snd_card->driver[i]))
1805 card->snd_card->driver[i] = '_';
1806 break;
1807 }
1808 }
f0fba2ad 1809
28e9ad92
MB		 1810 if (card->late_probe) {
1811 ret = card->late_probe(card);
1812 if (ret < 0) {
f110bfc7 1813 dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n",
28e9ad92
MB		 1814 card->name, ret);
1815 goto probe_aux_dev_err;
1816 }
1817 }
1818
1633281b 1819 if (card->fully_routed)
b05d8dc1 1820 list_for_each_entry(codec, &card->codec_dev_list, card_list)
1633281b
SW		 1821 snd_soc_dapm_auto_nc_codec_pins(codec);
1822
824ef826 1823 snd_soc_dapm_new_widgets(card);
8c193b8d 1824
f0fba2ad
LG		 1825 ret = snd_card_register(card->snd_card);
1826 if (ret < 0) {
f110bfc7
LG		 1827 dev_err(card->dev, "ASoC: failed to register soundcard %d\n",
1828 ret);
6b3ed785 1829 goto probe_aux_dev_err;
db2a4165
FM		 1830 }
1831
f0fba2ad
LG		 1832#ifdef CONFIG_SND_SOC_AC97_BUS
1833 /* register any AC97 codecs */
1834 for (i = 0; i < card->num_rtd; i++) {
6b3ed785
AL		 1835 ret = soc_register_ac97_dai_link(&card->rtd[i]);
1836 if (ret < 0) {
10e8aa9a
MM		 1837 dev_err(card->dev,
1838 "ASoC: failed to register AC97: %d\n", ret);
6b3ed785 1839 while (--i >= 0)
7d8316df 1840 soc_unregister_ac97_dai_link(card->rtd[i].codec);
6b3ed785 1841 goto probe_aux_dev_err;
f0fba2ad 1842 }
6b3ed785 1843 }
f0fba2ad
LG		 1844#endif
1845
1846 card->instantiated = 1;
4f4c0072 1847 snd_soc_dapm_sync(&card->dapm);
f0fba2ad 1848 mutex_unlock(&card->mutex);
b19e6e7b
MB		 1849
1850 return 0;
f0fba2ad 1851
2eea392d
JN		 1852probe_aux_dev_err:
1853 for (i = 0; i < card->num_aux_devs; i++)
1854 soc_remove_aux_dev(card, i);
1855
f0fba2ad 1856probe_dai_err:
0671fd8e 1857 soc_remove_dai_links(card);
f0fba2ad
LG		 1858
1859card_probe_error:
87506549 1860 if (card->remove)
e7361ec4 1861 card->remove(card);
f0fba2ad
LG		 1862
1863 snd_card_free(card->snd_card);
1864
b19e6e7b 1865base_error:
f0fba2ad 1866 mutex_unlock(&card->mutex);
db2a4165 1867
b19e6e7b 1868 return ret;
435c5e25
MB		 1869}
1870
1871/* probes a new socdev */
1872static int soc_probe(struct platform_device *pdev)
1873{
f0fba2ad 1874 struct snd_soc_card *card = platform_get_drvdata(pdev);
435c5e25 1875
70a7ca34
VK		 1876 /*
1877 * no card, so machine driver should be registering card
1878 * we should not be here in that case so ret error
1879 */
1880 if (!card)
1881 return -EINVAL;
1882
fe4085e8 1883 dev_warn(&pdev->dev,
f110bfc7 1884 "ASoC: machine %s should use snd_soc_register_card()\n",
fe4085e8
MB		 1885 card->name);
1886
435c5e25
MB		 1887 /* Bodge while we unpick instantiation */
1888 card->dev = &pdev->dev;
f0fba2ad 1889
28d528c8 1890 return snd_soc_register_card(card);
db2a4165
FM		 1891}
1892
b0e26485 1893static int soc_cleanup_card_resources(struct snd_soc_card *card)
db2a4165
FM		 1894{
1895 int i;
db2a4165 1896
b0e26485
VK		 1897 /* make sure any delayed work runs */
1898 for (i = 0; i < card->num_rtd; i++) {
1899 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
43829731 1900 flush_delayed_work(&rtd->delayed_work);
b0e26485 1901 }
914dc182 1902
b0e26485
VK		 1903 /* remove auxiliary devices */
1904 for (i = 0; i < card->num_aux_devs; i++)
1905 soc_remove_aux_dev(card, i);
db2a4165 1906
b0e26485 1907 /* remove and free each DAI */
0671fd8e 1908 soc_remove_dai_links(card);
2eea392d 1909
b0e26485 1910 soc_cleanup_card_debugfs(card);
f0fba2ad 1911
b0e26485
VK		 1912 /* remove the card */
1913 if (card->remove)
e7361ec4 1914 card->remove(card);
a6052154 1915
0aaae527
LPC		 1916 snd_soc_dapm_free(&card->dapm);
1917
b0e26485
VK		 1918 snd_card_free(card->snd_card);
1919 return 0;
1920
1921}
1922
1923/* removes a socdev */
1924static int soc_remove(struct platform_device *pdev)
1925{
1926 struct snd_soc_card *card = platform_get_drvdata(pdev);
db2a4165 1927
c5af3a2e 1928 snd_soc_unregister_card(card);
db2a4165
FM		 1929 return 0;
1930}
1931
6f8ab4ac 1932int snd_soc_poweroff(struct device *dev)
51737470 1933{
6f8ab4ac 1934 struct snd_soc_card *card = dev_get_drvdata(dev);
f0fba2ad 1935 int i;
51737470
MB		 1936
1937 if (!card->instantiated)
416356fc 1938 return 0;
51737470
MB		 1939
1940 /* Flush out pmdown_time work - we actually do want to run it
1941 * now, we're shutting down so no imminent restart. */
f0fba2ad
LG		 1942 for (i = 0; i < card->num_rtd; i++) {
1943 struct snd_soc_pcm_runtime *rtd = &card->rtd[i];
43829731 1944 flush_delayed_work(&rtd->delayed_work);
f0fba2ad 1945 }
51737470 1946
f0fba2ad 1947 snd_soc_dapm_shutdown(card);
416356fc 1948
988e8cc4
NC		 1949 /* deactivate pins to sleep state */
1950 for (i = 0; i < card->num_rtd; i++) {
1951 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
1952 struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
1953 pinctrl_pm_select_sleep_state(codec_dai->dev);
1954 pinctrl_pm_select_sleep_state(cpu_dai->dev);
1955 }
1956
416356fc 1957 return 0;
51737470 1958}
6f8ab4ac 1959EXPORT_SYMBOL_GPL(snd_soc_poweroff);
51737470 1960
6f8ab4ac 1961const struct dev_pm_ops snd_soc_pm_ops = {
b1dd5897
VK		 1962 .suspend = snd_soc_suspend,
1963 .resume = snd_soc_resume,
1964 .freeze = snd_soc_suspend,
1965 .thaw = snd_soc_resume,
6f8ab4ac 1966 .poweroff = snd_soc_poweroff,
b1dd5897 1967 .restore = snd_soc_resume,
416356fc 1968};
deb2607e 1969EXPORT_SYMBOL_GPL(snd_soc_pm_ops);
416356fc 1970
db2a4165
FM		 1971/* ASoC platform driver */
1972static struct platform_driver soc_driver = {
1973 .driver = {
1974 .name = "soc-audio",
8b45a209 1975 .owner = THIS_MODULE,
6f8ab4ac 1976 .pm = &snd_soc_pm_ops,
db2a4165
FM		 1977 },
1978 .probe = soc_probe,
1979 .remove = soc_remove,
db2a4165
FM		 1980};
1981
096e49d5
MB		 1982/**
1983 * snd_soc_codec_volatile_register: Report if a register is volatile.
1984 *
1985 * @codec: CODEC to query.
1986 * @reg: Register to query.
1987 *
1988 * Boolean function indiciating if a CODEC register is volatile.
1989 */
181e055e
MB		 1990int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
1991 unsigned int reg)
096e49d5 1992{
1500b7b5
DP		 1993 if (codec->volatile_register)
1994 return codec->volatile_register(codec, reg);
096e49d5
MB		 1995 else
1996 return 0;
1997}
1998EXPORT_SYMBOL_GPL(snd_soc_codec_volatile_register);
1999
239c9706
DP		 2000/**
2001 * snd_soc_codec_readable_register: Report if a register is readable.
2002 *
2003 * @codec: CODEC to query.
2004 * @reg: Register to query.
2005 *
2006 * Boolean function indicating if a CODEC register is readable.
2007 */
2008int snd_soc_codec_readable_register(struct snd_soc_codec *codec,
2009 unsigned int reg)
2010{
2011 if (codec->readable_register)
2012 return codec->readable_register(codec, reg);
2013 else
63fa0a28 2014 return 1;
239c9706
DP		 2015}
2016EXPORT_SYMBOL_GPL(snd_soc_codec_readable_register);
2017
2018/**
2019 * snd_soc_codec_writable_register: Report if a register is writable.
2020 *
2021 * @codec: CODEC to query.
2022 * @reg: Register to query.
2023 *
2024 * Boolean function indicating if a CODEC register is writable.
2025 */
2026int snd_soc_codec_writable_register(struct snd_soc_codec *codec,
2027 unsigned int reg)
2028{
2029 if (codec->writable_register)
2030 return codec->writable_register(codec, reg);
2031 else
63fa0a28 2032 return 1;
239c9706
DP		 2033}
2034EXPORT_SYMBOL_GPL(snd_soc_codec_writable_register);
2035
f1442bc1
LG		 2036int snd_soc_platform_read(struct snd_soc_platform *platform,
2037 unsigned int reg)
2038{
2039 unsigned int ret;
2040
2041 if (!platform->driver->read) {
f110bfc7 2042 dev_err(platform->dev, "ASoC: platform has no read back\n");
f1442bc1
LG		 2043 return -1;
2044 }
2045
2046 ret = platform->driver->read(platform, reg);
2047 dev_dbg(platform->dev, "read %x => %x\n", reg, ret);
a82ce2ae 2048 trace_snd_soc_preg_read(platform, reg, ret);
f1442bc1
LG		 2049
2050 return ret;
2051}
2052EXPORT_SYMBOL_GPL(snd_soc_platform_read);
2053
2054int snd_soc_platform_write(struct snd_soc_platform *platform,
2055 unsigned int reg, unsigned int val)
2056{
2057 if (!platform->driver->write) {
f110bfc7 2058 dev_err(platform->dev, "ASoC: platform has no write back\n");
f1442bc1
LG		 2059 return -1;
2060 }
2061
2062 dev_dbg(platform->dev, "write %x = %x\n", reg, val);
a82ce2ae 2063 trace_snd_soc_preg_write(platform, reg, val);
f1442bc1
LG		 2064 return platform->driver->write(platform, reg, val);
2065}
2066EXPORT_SYMBOL_GPL(snd_soc_platform_write);
2067
db2a4165
FM		 2068/**
2069 * snd_soc_new_ac97_codec - initailise AC97 device
2070 * @codec: audio codec
2071 * @ops: AC97 bus operations
2072 * @num: AC97 codec number
2073 *
2074 * Initialises AC97 codec resources for use by ad-hoc devices only.
2075 */
2076int snd_soc_new_ac97_codec(struct snd_soc_codec *codec,
2077 struct snd_ac97_bus_ops *ops, int num)
2078{
2079 mutex_lock(&codec->mutex);
2080
2081 codec->ac97 = kzalloc(sizeof(struct snd_ac97), GFP_KERNEL);
2082 if (codec->ac97 == NULL) {
2083 mutex_unlock(&codec->mutex);
2084 return -ENOMEM;
2085 }
2086
2087 codec->ac97->bus = kzalloc(sizeof(struct snd_ac97_bus), GFP_KERNEL);
2088 if (codec->ac97->bus == NULL) {
2089 kfree(codec->ac97);
2090 codec->ac97 = NULL;
2091 mutex_unlock(&codec->mutex);
2092 return -ENOMEM;
2093 }
2094
2095 codec->ac97->bus->ops = ops;
2096 codec->ac97->num = num;
0562f788
MW		 2097
2098 /*
2099 * Mark the AC97 device to be created by us. This way we ensure that the
2100 * device will be registered with the device subsystem later on.
2101 */
2102 codec->ac97_created = 1;
2103
db2a4165
FM		 2104 mutex_unlock(&codec->mutex);
2105 return 0;
2106}
2107EXPORT_SYMBOL_GPL(snd_soc_new_ac97_codec);
2108
741a509f
MP		 2109static struct snd_ac97_reset_cfg snd_ac97_rst_cfg;
2110
2111static void snd_soc_ac97_warm_reset(struct snd_ac97 *ac97)
2112{
2113 struct pinctrl *pctl = snd_ac97_rst_cfg.pctl;
2114
2115 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_warm_reset);
2116
2117 gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 1);
2118
2119 udelay(10);
2120
2121 gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
2122
2123 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
2124 msleep(2);
2125}
2126
2127static void snd_soc_ac97_reset(struct snd_ac97 *ac97)
2128{
2129 struct pinctrl *pctl = snd_ac97_rst_cfg.pctl;
2130
2131 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_reset);
2132
2133 gpio_direction_output(snd_ac97_rst_cfg.gpio_sync, 0);
2134 gpio_direction_output(snd_ac97_rst_cfg.gpio_sdata, 0);
2135 gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 0);
2136
2137 udelay(10);
2138
2139 gpio_direction_output(snd_ac97_rst_cfg.gpio_reset, 1);
2140
2141 pinctrl_select_state(pctl, snd_ac97_rst_cfg.pstate_run);
2142 msleep(2);
2143}
2144
2145static int snd_soc_ac97_parse_pinctl(struct device *dev,
2146 struct snd_ac97_reset_cfg *cfg)
2147{
2148 struct pinctrl *p;
2149 struct pinctrl_state *state;
2150 int gpio;
2151 int ret;
2152
2153 p = devm_pinctrl_get(dev);
2154 if (IS_ERR(p)) {
2155 dev_err(dev, "Failed to get pinctrl\n");
2156 return PTR_RET(p);
2157 }
2158 cfg->pctl = p;
2159
2160 state = pinctrl_lookup_state(p, "ac97-reset");
2161 if (IS_ERR(state)) {
2162 dev_err(dev, "Can't find pinctrl state ac97-reset\n");
2163 return PTR_RET(state);
2164 }
2165 cfg->pstate_reset = state;
2166
2167 state = pinctrl_lookup_state(p, "ac97-warm-reset");
2168 if (IS_ERR(state)) {
2169 dev_err(dev, "Can't find pinctrl state ac97-warm-reset\n");
2170 return PTR_RET(state);
2171 }
2172 cfg->pstate_warm_reset = state;
2173
2174 state = pinctrl_lookup_state(p, "ac97-running");
2175 if (IS_ERR(state)) {
2176 dev_err(dev, "Can't find pinctrl state ac97-running\n");
2177 return PTR_RET(state);
2178 }
2179 cfg->pstate_run = state;
2180
2181 gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 0);
2182 if (gpio < 0) {
2183 dev_err(dev, "Can't find ac97-sync gpio\n");
2184 return gpio;
2185 }
2186 ret = devm_gpio_request(dev, gpio, "AC97 link sync");
2187 if (ret) {
2188 dev_err(dev, "Failed requesting ac97-sync gpio\n");
2189 return ret;
2190 }
2191 cfg->gpio_sync = gpio;
2192
2193 gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 1);
2194 if (gpio < 0) {
2195 dev_err(dev, "Can't find ac97-sdata gpio %d\n", gpio);
2196 return gpio;
2197 }
2198 ret = devm_gpio_request(dev, gpio, "AC97 link sdata");
2199 if (ret) {
2200 dev_err(dev, "Failed requesting ac97-sdata gpio\n");
2201 return ret;
2202 }
2203 cfg->gpio_sdata = gpio;
2204
2205 gpio = of_get_named_gpio(dev->of_node, "ac97-gpios", 2);
2206 if (gpio < 0) {
2207 dev_err(dev, "Can't find ac97-reset gpio\n");
2208 return gpio;
2209 }
2210 ret = devm_gpio_request(dev, gpio, "AC97 link reset");
2211 if (ret) {
2212 dev_err(dev, "Failed requesting ac97-reset gpio\n");
2213 return ret;
2214 }
2215 cfg->gpio_reset = gpio;
2216
2217 return 0;
2218}
2219
b047e1cc 2220struct snd_ac97_bus_ops *soc_ac97_ops;
f74b5e25 2221EXPORT_SYMBOL_GPL(soc_ac97_ops);
b047e1cc
MB		 2222
2223int snd_soc_set_ac97_ops(struct snd_ac97_bus_ops *ops)
2224{
2225 if (ops == soc_ac97_ops)
2226 return 0;
2227
2228 if (soc_ac97_ops && ops)
2229 return -EBUSY;
2230
2231 soc_ac97_ops = ops;
2232
2233 return 0;
2234}
2235EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops);
2236
741a509f
MP		 2237/**
2238 * snd_soc_set_ac97_ops_of_reset - Set ac97 ops with generic ac97 reset functions
2239 *
2240 * This function sets the reset and warm_reset properties of ops and parses
2241 * the device node of pdev to get pinctrl states and gpio numbers to use.
2242 */
2243int snd_soc_set_ac97_ops_of_reset(struct snd_ac97_bus_ops *ops,
2244 struct platform_device *pdev)
2245{
2246 struct device *dev = &pdev->dev;
2247 struct snd_ac97_reset_cfg cfg;
2248 int ret;
2249
2250 ret = snd_soc_ac97_parse_pinctl(dev, &cfg);
2251 if (ret)
2252 return ret;
2253
2254 ret = snd_soc_set_ac97_ops(ops);
2255 if (ret)
2256 return ret;
2257
2258 ops->warm_reset = snd_soc_ac97_warm_reset;
2259 ops->reset = snd_soc_ac97_reset;
2260
2261 snd_ac97_rst_cfg = cfg;
2262 return 0;
2263}
2264EXPORT_SYMBOL_GPL(snd_soc_set_ac97_ops_of_reset);
2265
db2a4165
FM		 2266/**
2267 * snd_soc_free_ac97_codec - free AC97 codec device
2268 * @codec: audio codec
2269 *
2270 * Frees AC97 codec device resources.
2271 */
2272void snd_soc_free_ac97_codec(struct snd_soc_codec *codec)
2273{
2274 mutex_lock(&codec->mutex);
f0fba2ad
LG		 2275#ifdef CONFIG_SND_SOC_AC97_BUS
2276 soc_unregister_ac97_dai_link(codec);
2277#endif
db2a4165
FM		 2278 kfree(codec->ac97->bus);
2279 kfree(codec->ac97);
2280 codec->ac97 = NULL;
0562f788 2281 codec->ac97_created = 0;
db2a4165
FM		 2282 mutex_unlock(&codec->mutex);
2283}
2284EXPORT_SYMBOL_GPL(snd_soc_free_ac97_codec);
2285
c3753707
MB		 2286unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg)
2287{
2288 unsigned int ret;
2289
c3acec26 2290 ret = codec->read(codec, reg);
c3753707 2291 dev_dbg(codec->dev, "read %x => %x\n", reg, ret);
a8b1d34f 2292 trace_snd_soc_reg_read(codec, reg, ret);
c3753707
MB		 2293
2294 return ret;
2295}
2296EXPORT_SYMBOL_GPL(snd_soc_read);
2297
2298unsigned int snd_soc_write(struct snd_soc_codec *codec,
2299 unsigned int reg, unsigned int val)
2300{
2301 dev_dbg(codec->dev, "write %x = %x\n", reg, val);
a8b1d34f 2302 trace_snd_soc_reg_write(codec, reg, val);
c3acec26 2303 return codec->write(codec, reg, val);
c3753707
MB		 2304}
2305EXPORT_SYMBOL_GPL(snd_soc_write);
2306
db2a4165
FM		 2307/**
2308 * snd_soc_update_bits - update codec register bits
2309 * @codec: audio codec
2310 * @reg: codec register
2311 * @mask: register mask
2312 * @value: new value
2313 *
2314 * Writes new register value.
2315 *
180c329d 2316 * Returns 1 for change, 0 for no change, or negative error code.
db2a4165
FM		 2317 */
2318int snd_soc_update_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2319 unsigned int mask, unsigned int value)
db2a4165 2320{
8a713da8 2321 bool change;
46f5822f 2322 unsigned int old, new;
180c329d
TT		 2323 int ret;
2324
8a713da8
MB		 2325 if (codec->using_regmap) {
2326 ret = regmap_update_bits_check(codec->control_data, reg,
2327 mask, value, &change);
2328 } else {
2329 ret = snd_soc_read(codec, reg);
180c329d
TT		 2330 if (ret < 0)
2331 return ret;
8a713da8
MB		 2332
2333 old = ret;
2334 new = (old & ~mask) | (value & mask);
2335 change = old != new;
2336 if (change)
2337 ret = snd_soc_write(codec, reg, new);
180c329d 2338 }
db2a4165 2339
8a713da8
MB		 2340 if (ret < 0)
2341 return ret;
2342
db2a4165
FM		 2343 return change;
2344}
2345EXPORT_SYMBOL_GPL(snd_soc_update_bits);
2346
6c508c62
EN		 2347/**
2348 * snd_soc_update_bits_locked - update codec register bits
2349 * @codec: audio codec
2350 * @reg: codec register
2351 * @mask: register mask
2352 * @value: new value
2353 *
2354 * Writes new register value, and takes the codec mutex.
2355 *
2356 * Returns 1 for change else 0.
2357 */
dd1b3d53
MB		 2358int snd_soc_update_bits_locked(struct snd_soc_codec *codec,
2359 unsigned short reg, unsigned int mask,
2360 unsigned int value)
6c508c62
EN		 2361{
2362 int change;
2363
2364 mutex_lock(&codec->mutex);
2365 change = snd_soc_update_bits(codec, reg, mask, value);
2366 mutex_unlock(&codec->mutex);
2367
2368 return change;
2369}
dd1b3d53 2370EXPORT_SYMBOL_GPL(snd_soc_update_bits_locked);
6c508c62 2371
db2a4165
FM		 2372/**
2373 * snd_soc_test_bits - test register for change
2374 * @codec: audio codec
2375 * @reg: codec register
2376 * @mask: register mask
2377 * @value: new value
2378 *
2379 * Tests a register with a new value and checks if the new value is
2380 * different from the old value.
2381 *
2382 * Returns 1 for change else 0.
2383 */
2384int snd_soc_test_bits(struct snd_soc_codec *codec, unsigned short reg,
46f5822f 2385 unsigned int mask, unsigned int value)
db2a4165
FM		 2386{
2387 int change;
46f5822f 2388 unsigned int old, new;
db2a4165 2389
db2a4165
FM		 2390 old = snd_soc_read(codec, reg);
2391 new = (old & ~mask) | value;
2392 change = old != new;
db2a4165
FM		 2393
2394 return change;
2395}
2396EXPORT_SYMBOL_GPL(snd_soc_test_bits);
2397
db2a4165
FM		 2398/**
2399 * snd_soc_cnew - create new control
2400 * @_template: control template
2401 * @data: control private data
ac11a2b3 2402 * @long_name: control long name
efb7ac3f 2403 * @prefix: control name prefix
db2a4165
FM		 2404 *
2405 * Create a new mixer control from a template control.
2406 *
2407 * Returns 0 for success, else error.
2408 */
2409struct snd_kcontrol *snd_soc_cnew(const struct snd_kcontrol_new *_template,
3056557f 2410 void *data, const char *long_name,
efb7ac3f 2411 const char *prefix)
db2a4165
FM		 2412{
2413 struct snd_kcontrol_new template;
efb7ac3f
MB		 2414 struct snd_kcontrol *kcontrol;
2415 char *name = NULL;
db2a4165
FM		 2416
2417 memcpy(&template, _template, sizeof(template));
db2a4165
FM		 2418 template.index = 0;
2419
efb7ac3f
MB		 2420 if (!long_name)
2421 long_name = template.name;
2422
2423 if (prefix) {
2b581074 2424 name = kasprintf(GFP_KERNEL, "%s %s", prefix, long_name);
efb7ac3f
MB		 2425 if (!name)
2426 return NULL;
2427
efb7ac3f
MB		 2428 template.name = name;
2429 } else {
2430 template.name = long_name;
2431 }
2432
2433 kcontrol = snd_ctl_new1(&template, data);
2434
2435 kfree(name);
2436
2437 return kcontrol;
db2a4165
FM		 2438}
2439EXPORT_SYMBOL_GPL(snd_soc_cnew);
2440
022658be
LG		 2441static int snd_soc_add_controls(struct snd_card *card, struct device *dev,
2442 const struct snd_kcontrol_new *controls, int num_controls,
2443 const char *prefix, void *data)
2444{
2445 int err, i;
2446
2447 for (i = 0; i < num_controls; i++) {
2448 const struct snd_kcontrol_new *control = &controls[i];
2449 err = snd_ctl_add(card, snd_soc_cnew(control, data,
2450 control->name, prefix));
2451 if (err < 0) {
f110bfc7
LG		 2452 dev_err(dev, "ASoC: Failed to add %s: %d\n",
2453 control->name, err);
022658be
LG		 2454 return err;
2455 }
2456 }
2457
2458 return 0;
2459}
2460
4fefd698
DP		 2461struct snd_kcontrol *snd_soc_card_get_kcontrol(struct snd_soc_card *soc_card,
2462 const char *name)
2463{
2464 struct snd_card *card = soc_card->snd_card;
2465 struct snd_kcontrol *kctl;
2466
2467 if (unlikely(!name))
2468 return NULL;
2469
2470 list_for_each_entry(kctl, &card->controls, list)
2471 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name)))
2472 return kctl;
2473 return NULL;
2474}
2475EXPORT_SYMBOL_GPL(snd_soc_card_get_kcontrol);
2476
3e8e1952 2477/**
022658be
LG		 2478 * snd_soc_add_codec_controls - add an array of controls to a codec.
2479 * Convenience function to add a list of controls. Many codecs were
3e8e1952
IM		 2480 * duplicating this code.
2481 *
2482 * @codec: codec to add controls to
2483 * @controls: array of controls to add
2484 * @num_controls: number of elements in the array
2485 *
2486 * Return 0 for success, else error.
2487 */
022658be 2488int snd_soc_add_codec_controls(struct snd_soc_codec *codec,
3e8e1952
IM		 2489 const struct snd_kcontrol_new *controls, int num_controls)
2490{
f0fba2ad 2491 struct snd_card *card = codec->card->snd_card;
3e8e1952 2492
022658be
LG		 2493 return snd_soc_add_controls(card, codec->dev, controls, num_controls,
2494 codec->name_prefix, codec);
3e8e1952 2495}
022658be 2496EXPORT_SYMBOL_GPL(snd_soc_add_codec_controls);
3e8e1952 2497
a491a5c8
LG		 2498/**
2499 * snd_soc_add_platform_controls - add an array of controls to a platform.
022658be 2500 * Convenience function to add a list of controls.
a491a5c8
LG		 2501 *
2502 * @platform: platform to add controls to
2503 * @controls: array of controls to add
2504 * @num_controls: number of elements in the array
2505 *
2506 * Return 0 for success, else error.
2507 */
2508int snd_soc_add_platform_controls(struct snd_soc_platform *platform,
2509 const struct snd_kcontrol_new *controls, int num_controls)
2510{
2511 struct snd_card *card = platform->card->snd_card;
a491a5c8 2512
022658be
LG		 2513 return snd_soc_add_controls(card, platform->dev, controls, num_controls,
2514 NULL, platform);
a491a5c8
LG		 2515}
2516EXPORT_SYMBOL_GPL(snd_soc_add_platform_controls);
2517
022658be
LG		 2518/**
2519 * snd_soc_add_card_controls - add an array of controls to a SoC card.
2520 * Convenience function to add a list of controls.
2521 *
2522 * @soc_card: SoC card to add controls to
2523 * @controls: array of controls to add
2524 * @num_controls: number of elements in the array
2525 *
2526 * Return 0 for success, else error.
2527 */
2528int snd_soc_add_card_controls(struct snd_soc_card *soc_card,
2529 const struct snd_kcontrol_new *controls, int num_controls)
2530{
2531 struct snd_card *card = soc_card->snd_card;
2532
2533 return snd_soc_add_controls(card, soc_card->dev, controls, num_controls,
2534 NULL, soc_card);
2535}
2536EXPORT_SYMBOL_GPL(snd_soc_add_card_controls);
2537
2538/**
2539 * snd_soc_add_dai_controls - add an array of controls to a DAI.
2540 * Convienience function to add a list of controls.
2541 *
2542 * @dai: DAI to add controls to
2543 * @controls: array of controls to add
2544 * @num_controls: number of elements in the array
2545 *
2546 * Return 0 for success, else error.
2547 */
2548int snd_soc_add_dai_controls(struct snd_soc_dai *dai,
2549 const struct snd_kcontrol_new *controls, int num_controls)
2550{
2551 struct snd_card *card = dai->card->snd_card;
2552
2553 return snd_soc_add_controls(card, dai->dev, controls, num_controls,
2554 NULL, dai);
2555}
2556EXPORT_SYMBOL_GPL(snd_soc_add_dai_controls);
2557
db2a4165
FM		 2558/**
2559 * snd_soc_info_enum_double - enumerated double mixer info callback
2560 * @kcontrol: mixer control
2561 * @uinfo: control element information
2562 *
2563 * Callback to provide information about a double enumerated
2564 * mixer control.
2565 *
2566 * Returns 0 for success.
2567 */
2568int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
2569 struct snd_ctl_elem_info *uinfo)
2570{
2571 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
2572
2573 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
2574 uinfo->count = e->shift_l == e->shift_r ? 1 : 2;
f8ba0b7b 2575 uinfo->value.enumerated.items = e->max;
db2a4165 2576
f8ba0b7b
JS		 2577 if (uinfo->value.enumerated.item > e->max - 1)
2578 uinfo->value.enumerated.item = e->max - 1;
a19685cb
TI		 2579 strlcpy(uinfo->value.enumerated.name,
2580 e->texts[uinfo->value.enumerated.item],
2581 sizeof(uinfo->value.enumerated.name));
db2a4165
FM		 2582 return 0;
2583}
2584EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
2585
2586/**
2587 * snd_soc_get_enum_double - enumerated double mixer get callback
2588 * @kcontrol: mixer control
ac11a2b3 2589 * @ucontrol: control element information
db2a4165
FM		 2590 *
2591 * Callback to get the value of a double enumerated mixer.
2592 *
2593 * Returns 0 for success.
2594 */
2595int snd_soc_get_enum_double(struct snd_kcontrol *kcontrol,
2596 struct snd_ctl_elem_value *ucontrol)
2597{
2598 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2599 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
86767b7d 2600 unsigned int val;
db2a4165 2601
db2a4165 2602 val = snd_soc_read(codec, e->reg);
3ff3f64b 2603 ucontrol->value.enumerated.item[0]
86767b7d 2604 = (val >> e->shift_l) & e->mask;
db2a4165
FM		 2605 if (e->shift_l != e->shift_r)
2606 ucontrol->value.enumerated.item[1] =
86767b7d 2607 (val >> e->shift_r) & e->mask;
db2a4165
FM		 2608
2609 return 0;
2610}
2611EXPORT_SYMBOL_GPL(snd_soc_get_enum_double);
2612
2613/**
2614 * snd_soc_put_enum_double - enumerated double mixer put callback
2615 * @kcontrol: mixer control
ac11a2b3 2616 * @ucontrol: control element information
db2a4165
FM		 2617 *
2618 * Callback to set the value of a double enumerated mixer.
2619 *
2620 * Returns 0 for success.
2621 */
2622int snd_soc_put_enum_double(struct snd_kcontrol *kcontrol,
2623 struct snd_ctl_elem_value *ucontrol)
2624{
2625 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2626 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2627 unsigned int val;
86767b7d 2628 unsigned int mask;
db2a4165 2629
f8ba0b7b 2630 if (ucontrol->value.enumerated.item[0] > e->max - 1)
db2a4165
FM		 2631 return -EINVAL;
2632 val = ucontrol->value.enumerated.item[0] << e->shift_l;
86767b7d 2633 mask = e->mask << e->shift_l;
db2a4165 2634 if (e->shift_l != e->shift_r) {
f8ba0b7b 2635 if (ucontrol->value.enumerated.item[1] > e->max - 1)
db2a4165
FM		 2636 return -EINVAL;
2637 val |= ucontrol->value.enumerated.item[1] << e->shift_r;
86767b7d 2638 mask |= e->mask << e->shift_r;
db2a4165
FM		 2639 }
2640
6c508c62 2641 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
db2a4165
FM		 2642}
2643EXPORT_SYMBOL_GPL(snd_soc_put_enum_double);
2644
2e72f8e3
PU		 2645/**
2646 * snd_soc_get_value_enum_double - semi enumerated double mixer get callback
2647 * @kcontrol: mixer control
2648 * @ucontrol: control element information
2649 *
2650 * Callback to get the value of a double semi enumerated mixer.
2651 *
2652 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2653 * used for handling bitfield coded enumeration for example.
2654 *
2655 * Returns 0 for success.
2656 */
2657int snd_soc_get_value_enum_double(struct snd_kcontrol *kcontrol,
2658 struct snd_ctl_elem_value *ucontrol)
2659{
2660 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2661 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f 2662 unsigned int reg_val, val, mux;
2e72f8e3
PU		 2663
2664 reg_val = snd_soc_read(codec, e->reg);
2665 val = (reg_val >> e->shift_l) & e->mask;
2666 for (mux = 0; mux < e->max; mux++) {
2667 if (val == e->values[mux])
2668 break;
2669 }
2670 ucontrol->value.enumerated.item[0] = mux;
2671 if (e->shift_l != e->shift_r) {
2672 val = (reg_val >> e->shift_r) & e->mask;
2673 for (mux = 0; mux < e->max; mux++) {
2674 if (val == e->values[mux])
2675 break;
2676 }
2677 ucontrol->value.enumerated.item[1] = mux;
2678 }
2679
2680 return 0;
2681}
2682EXPORT_SYMBOL_GPL(snd_soc_get_value_enum_double);
2683
2684/**
2685 * snd_soc_put_value_enum_double - semi enumerated double mixer put callback
2686 * @kcontrol: mixer control
2687 * @ucontrol: control element information
2688 *
2689 * Callback to set the value of a double semi enumerated mixer.
2690 *
2691 * Semi enumerated mixer: the enumerated items are referred as values. Can be
2692 * used for handling bitfield coded enumeration for example.
2693 *
2694 * Returns 0 for success.
2695 */
2696int snd_soc_put_value_enum_double(struct snd_kcontrol *kcontrol,
2697 struct snd_ctl_elem_value *ucontrol)
2698{
2699 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
74155556 2700 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
46f5822f
DR		 2701 unsigned int val;
2702 unsigned int mask;
2e72f8e3
PU		 2703
2704 if (ucontrol->value.enumerated.item[0] > e->max - 1)
2705 return -EINVAL;
2706 val = e->values[ucontrol->value.enumerated.item[0]] << e->shift_l;
2707 mask = e->mask << e->shift_l;
2708 if (e->shift_l != e->shift_r) {
2709 if (ucontrol->value.enumerated.item[1] > e->max - 1)
2710 return -EINVAL;
2711 val |= e->values[ucontrol->value.enumerated.item[1]] << e->shift_r;
2712 mask |= e->mask << e->shift_r;
2713 }
2714
6c508c62 2715 return snd_soc_update_bits_locked(codec, e->reg, mask, val);
2e72f8e3
PU		 2716}
2717EXPORT_SYMBOL_GPL(snd_soc_put_value_enum_double);
2718
db2a4165
FM		 2719/**
2720 * snd_soc_info_volsw - single mixer info callback
2721 * @kcontrol: mixer control
2722 * @uinfo: control element information
2723 *
e8f5a103
PU		 2724 * Callback to provide information about a single mixer control, or a double
2725 * mixer control that spans 2 registers.
db2a4165
FM		 2726 *
2727 * Returns 0 for success.
2728 */
2729int snd_soc_info_volsw(struct snd_kcontrol *kcontrol,
2730 struct snd_ctl_elem_info *uinfo)
2731{
4eaa9819
JS		 2732 struct soc_mixer_control *mc =
2733 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2734 int platform_max;
db2a4165 2735
d11bb4a9
PU		 2736 if (!mc->platform_max)
2737 mc->platform_max = mc->max;
2738 platform_max = mc->platform_max;
2739
2740 if (platform_max == 1 && !strstr(kcontrol->id.name, " Volume"))
a7a4ac86
PZ		 2741 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
2742 else
2743 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2744
e8f5a103 2745 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
db2a4165 2746 uinfo->value.integer.min = 0;
d11bb4a9 2747 uinfo->value.integer.max = platform_max;
db2a4165
FM		 2748 return 0;
2749}
2750EXPORT_SYMBOL_GPL(snd_soc_info_volsw);
2751
2752/**
2753 * snd_soc_get_volsw - single mixer get callback
2754 * @kcontrol: mixer control
ac11a2b3 2755 * @ucontrol: control element information
db2a4165 2756 *
f7915d99
PU		 2757 * Callback to get the value of a single mixer control, or a double mixer
2758 * control that spans 2 registers.
db2a4165
FM		 2759 *
2760 * Returns 0 for success.
2761 */
2762int snd_soc_get_volsw(struct snd_kcontrol *kcontrol,
2763 struct snd_ctl_elem_value *ucontrol)
2764{
4eaa9819
JS		 2765 struct soc_mixer_control *mc =
2766 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2767 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2768 unsigned int reg = mc->reg;
f7915d99 2769 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2770 unsigned int shift = mc->shift;
2771 unsigned int rshift = mc->rshift;
4eaa9819 2772 int max = mc->max;
815ecf8d
JS		 2773 unsigned int mask = (1 << fls(max)) - 1;
2774 unsigned int invert = mc->invert;
db2a4165
FM		 2775
2776 ucontrol->value.integer.value[0] =
2777 (snd_soc_read(codec, reg) >> shift) & mask;
f7915d99 2778 if (invert)
db2a4165 2779 ucontrol->value.integer.value[0] =
a7a4ac86 2780 max - ucontrol->value.integer.value[0];
f7915d99
PU		 2781
2782 if (snd_soc_volsw_is_stereo(mc)) {
2783 if (reg == reg2)
2784 ucontrol->value.integer.value[1] =
2785 (snd_soc_read(codec, reg) >> rshift) & mask;
2786 else
2787 ucontrol->value.integer.value[1] =
2788 (snd_soc_read(codec, reg2) >> shift) & mask;
2789 if (invert)
db2a4165 2790 ucontrol->value.integer.value[1] =
a7a4ac86 2791 max - ucontrol->value.integer.value[1];
db2a4165
FM		 2792 }
2793
2794 return 0;
2795}
2796EXPORT_SYMBOL_GPL(snd_soc_get_volsw);
2797
2798/**
2799 * snd_soc_put_volsw - single mixer put callback
2800 * @kcontrol: mixer control
ac11a2b3 2801 * @ucontrol: control element information
db2a4165 2802 *
974815ba
PU		 2803 * Callback to set the value of a single mixer control, or a double mixer
2804 * control that spans 2 registers.
db2a4165
FM		 2805 *
2806 * Returns 0 for success.
2807 */
2808int snd_soc_put_volsw(struct snd_kcontrol *kcontrol,
2809 struct snd_ctl_elem_value *ucontrol)
2810{
4eaa9819
JS		 2811 struct soc_mixer_control *mc =
2812 (struct soc_mixer_control *)kcontrol->private_value;
db2a4165 2813 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2814 unsigned int reg = mc->reg;
974815ba 2815 unsigned int reg2 = mc->rreg;
815ecf8d
JS		 2816 unsigned int shift = mc->shift;
2817 unsigned int rshift = mc->rshift;
4eaa9819 2818 int max = mc->max;
815ecf8d
JS		 2819 unsigned int mask = (1 << fls(max)) - 1;
2820 unsigned int invert = mc->invert;
974815ba 2821 int err;
939d9f16 2822 bool type_2r = false;
974815ba
PU		 2823 unsigned int val2 = 0;
2824 unsigned int val, val_mask;
db2a4165
FM		 2825
2826 val = (ucontrol->value.integer.value[0] & mask);
2827 if (invert)
a7a4ac86 2828 val = max - val;
db2a4165
FM		 2829 val_mask = mask << shift;
2830 val = val << shift;
974815ba 2831 if (snd_soc_volsw_is_stereo(mc)) {
db2a4165
FM		 2832 val2 = (ucontrol->value.integer.value[1] & mask);
2833 if (invert)
a7a4ac86 2834 val2 = max - val2;
974815ba
PU		 2835 if (reg == reg2) {
2836 val_mask |= mask << rshift;
2837 val |= val2 << rshift;
2838 } else {
2839 val2 = val2 << shift;
939d9f16 2840 type_2r = true;
974815ba 2841 }
db2a4165 2842 }
6c508c62 2843 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
3ff3f64b 2844 if (err < 0)
db2a4165
FM		 2845 return err;
2846
974815ba
PU		 2847 if (type_2r)
2848 err = snd_soc_update_bits_locked(codec, reg2, val_mask, val2);
2849
db2a4165
FM		 2850 return err;
2851}
974815ba 2852EXPORT_SYMBOL_GPL(snd_soc_put_volsw);
db2a4165 2853
1d99f243
BA		 2854/**
2855 * snd_soc_get_volsw_sx - single mixer get callback
2856 * @kcontrol: mixer control
2857 * @ucontrol: control element information
2858 *
2859 * Callback to get the value of a single mixer control, or a double mixer
2860 * control that spans 2 registers.
2861 *
2862 * Returns 0 for success.
2863 */
2864int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
2865 struct snd_ctl_elem_value *ucontrol)
2866{
2867 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2868 struct soc_mixer_control *mc =
2869 (struct soc_mixer_control *)kcontrol->private_value;
2870
2871 unsigned int reg = mc->reg;
2872 unsigned int reg2 = mc->rreg;
2873 unsigned int shift = mc->shift;
2874 unsigned int rshift = mc->rshift;
2875 int max = mc->max;
2876 int min = mc->min;
2877 int mask = (1 << (fls(min + max) - 1)) - 1;
2878
2879 ucontrol->value.integer.value[0] =
2880 ((snd_soc_read(codec, reg) >> shift) - min) & mask;
2881
2882 if (snd_soc_volsw_is_stereo(mc))
2883 ucontrol->value.integer.value[1] =
2884 ((snd_soc_read(codec, reg2) >> rshift) - min) & mask;
2885
2886 return 0;
2887}
2888EXPORT_SYMBOL_GPL(snd_soc_get_volsw_sx);
2889
2890/**
2891 * snd_soc_put_volsw_sx - double mixer set callback
2892 * @kcontrol: mixer control
2893 * @uinfo: control element information
2894 *
2895 * Callback to set the value of a double mixer control that spans 2 registers.
2896 *
2897 * Returns 0 for success.
2898 */
2899int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
2900 struct snd_ctl_elem_value *ucontrol)
2901{
2902 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
2903 struct soc_mixer_control *mc =
2904 (struct soc_mixer_control *)kcontrol->private_value;
2905
2906 unsigned int reg = mc->reg;
2907 unsigned int reg2 = mc->rreg;
2908 unsigned int shift = mc->shift;
2909 unsigned int rshift = mc->rshift;
2910 int max = mc->max;
2911 int min = mc->min;
2912 int mask = (1 << (fls(min + max) - 1)) - 1;
27f1d759 2913 int err = 0;
1d99f243
BA		 2914 unsigned short val, val_mask, val2 = 0;
2915
2916 val_mask = mask << shift;
2917 val = (ucontrol->value.integer.value[0] + min) & mask;
2918 val = val << shift;
2919
d055852e
MN		 2920 err = snd_soc_update_bits_locked(codec, reg, val_mask, val);
2921 if (err < 0)
2922 return err;
1d99f243
BA		 2923
2924 if (snd_soc_volsw_is_stereo(mc)) {
2925 val_mask = mask << rshift;
2926 val2 = (ucontrol->value.integer.value[1] + min) & mask;
2927 val2 = val2 << rshift;
2928
2929 if (snd_soc_update_bits_locked(codec, reg2, val_mask, val2))
2930 return err;
2931 }
2932 return 0;
2933}
2934EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
2935
e13ac2e9
MB		 2936/**
2937 * snd_soc_info_volsw_s8 - signed mixer info callback
2938 * @kcontrol: mixer control
2939 * @uinfo: control element information
2940 *
2941 * Callback to provide information about a signed mixer control.
2942 *
2943 * Returns 0 for success.
2944 */
2945int snd_soc_info_volsw_s8(struct snd_kcontrol *kcontrol,
2946 struct snd_ctl_elem_info *uinfo)
2947{
4eaa9819
JS		 2948 struct soc_mixer_control *mc =
2949 (struct soc_mixer_control *)kcontrol->private_value;
d11bb4a9 2950 int platform_max;
4eaa9819 2951 int min = mc->min;
e13ac2e9 2952
d11bb4a9
PU		 2953 if (!mc->platform_max)
2954 mc->platform_max = mc->max;
2955 platform_max = mc->platform_max;
2956
e13ac2e9
MB		 2957 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
2958 uinfo->count = 2;
2959 uinfo->value.integer.min = 0;
d11bb4a9 2960 uinfo->value.integer.max = platform_max - min;
e13ac2e9
MB		 2961 return 0;
2962}
2963EXPORT_SYMBOL_GPL(snd_soc_info_volsw_s8);
2964
2965/**
2966 * snd_soc_get_volsw_s8 - signed mixer get callback
2967 * @kcontrol: mixer control
ac11a2b3 2968 * @ucontrol: control element information
e13ac2e9
MB		 2969 *
2970 * Callback to get the value of a signed mixer control.
2971 *
2972 * Returns 0 for success.
2973 */
2974int snd_soc_get_volsw_s8(struct snd_kcontrol *kcontrol,
2975 struct snd_ctl_elem_value *ucontrol)
2976{
4eaa9819
JS		 2977 struct soc_mixer_control *mc =
2978 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 2979 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 2980 unsigned int reg = mc->reg;
4eaa9819 2981 int min = mc->min;
e13ac2e9
MB		 2982 int val = snd_soc_read(codec, reg);
2983
2984 ucontrol->value.integer.value[0] =
2985 ((signed char)(val & 0xff))-min;
2986 ucontrol->value.integer.value[1] =
2987 ((signed char)((val >> 8) & 0xff))-min;
2988 return 0;
2989}
2990EXPORT_SYMBOL_GPL(snd_soc_get_volsw_s8);
2991
2992/**
2993 * snd_soc_put_volsw_sgn - signed mixer put callback
2994 * @kcontrol: mixer control
ac11a2b3 2995 * @ucontrol: control element information
e13ac2e9
MB		 2996 *
2997 * Callback to set the value of a signed mixer control.
2998 *
2999 * Returns 0 for success.
3000 */
3001int snd_soc_put_volsw_s8(struct snd_kcontrol *kcontrol,
3002 struct snd_ctl_elem_value *ucontrol)
3003{
4eaa9819
JS		 3004 struct soc_mixer_control *mc =
3005 (struct soc_mixer_control *)kcontrol->private_value;
e13ac2e9 3006 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
815ecf8d 3007 unsigned int reg = mc->reg;
4eaa9819 3008 int min = mc->min;
46f5822f 3009 unsigned int val;
e13ac2e9
MB		 3010
3011 val = (ucontrol->value.integer.value[0]+min) & 0xff;
3012 val |= ((ucontrol->value.integer.value[1]+min) & 0xff) << 8;
3013
6c508c62 3014 return snd_soc_update_bits_locked(codec, reg, 0xffff, val);
e13ac2e9
MB		 3015}
3016EXPORT_SYMBOL_GPL(snd_soc_put_volsw_s8);
3017
6c9d8cf6
AT		 3018/**
3019 * snd_soc_info_volsw_range - single mixer info callback with range.
3020 * @kcontrol: mixer control
3021 * @uinfo: control element information
3022 *
3023 * Callback to provide information, within a range, about a single
3024 * mixer control.
3025 *
3026 * returns 0 for success.
3027 */
3028int snd_soc_info_volsw_range(struct snd_kcontrol *kcontrol,
3029 struct snd_ctl_elem_info *uinfo)
3030{
3031 struct soc_mixer_control *mc =
3032 (struct soc_mixer_control *)kcontrol->private_value;
3033 int platform_max;
3034 int min = mc->min;
3035
3036 if (!mc->platform_max)
3037 mc->platform_max = mc->max;
3038 platform_max = mc->platform_max;
3039
3040 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
9bde4f0b 3041 uinfo->count = snd_soc_volsw_is_stereo(mc) ? 2 : 1;
6c9d8cf6
AT		 3042 uinfo->value.integer.min = 0;
3043 uinfo->value.integer.max = platform_max - min;
3044
3045 return 0;
3046}
3047EXPORT_SYMBOL_GPL(snd_soc_info_volsw_range);
3048
3049/**
3050 * snd_soc_put_volsw_range - single mixer put value callback with range.
3051 * @kcontrol: mixer control
3052 * @ucontrol: control element information
3053 *
3054 * Callback to set the value, within a range, for a single mixer control.
3055 *
3056 * Returns 0 for success.
3057 */
3058int snd_soc_put_volsw_range(struct snd_kcontrol *kcontrol,
3059 struct snd_ctl_elem_value *ucontrol)
3060{
3061 struct soc_mixer_control *mc =
3062 (struct soc_mixer_control *)kcontrol->private_value;
3063 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3064 unsigned int reg = mc->reg;
9bde4f0b 3065 unsigned int rreg = mc->rreg;
6c9d8cf6
AT		 3066 unsigned int shift = mc->shift;
3067 int min = mc->min;
3068 int max = mc->max;
3069 unsigned int mask = (1 << fls(max)) - 1;
3070 unsigned int invert = mc->invert;
3071 unsigned int val, val_mask;
9bde4f0b 3072 int ret;
6c9d8cf6
AT		 3073
3074 val = ((ucontrol->value.integer.value[0] + min) & mask);
3075 if (invert)
3076 val = max - val;
3077 val_mask = mask << shift;
3078 val = val << shift;
3079
9bde4f0b 3080 ret = snd_soc_update_bits_locked(codec, reg, val_mask, val);
0eaa6cca 3081 if (ret < 0)
9bde4f0b
MB		 3082 return ret;
3083
3084 if (snd_soc_volsw_is_stereo(mc)) {
3085 val = ((ucontrol->value.integer.value[1] + min) & mask);
3086 if (invert)
3087 val = max - val;
3088 val_mask = mask << shift;
3089 val = val << shift;
3090
3091 ret = snd_soc_update_bits_locked(codec, rreg, val_mask, val);
3092 }
3093
3094 return ret;
6c9d8cf6
AT		 3095}
3096EXPORT_SYMBOL_GPL(snd_soc_put_volsw_range);
3097
3098/**
3099 * snd_soc_get_volsw_range - single mixer get callback with range
3100 * @kcontrol: mixer control
3101 * @ucontrol: control element information
3102 *
3103 * Callback to get the value, within a range, of a single mixer control.
3104 *
3105 * Returns 0 for success.
3106 */
3107int snd_soc_get_volsw_range(struct snd_kcontrol *kcontrol,
3108 struct snd_ctl_elem_value *ucontrol)
3109{
3110 struct soc_mixer_control *mc =
3111 (struct soc_mixer_control *)kcontrol->private_value;
3112 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3113 unsigned int reg = mc->reg;
9bde4f0b 3114 unsigned int rreg = mc->rreg;
6c9d8cf6
AT		 3115 unsigned int shift = mc->shift;
3116 int min = mc->min;
3117 int max = mc->max;
3118 unsigned int mask = (1 << fls(max)) - 1;
3119 unsigned int invert = mc->invert;
3120
3121 ucontrol->value.integer.value[0] =
3122 (snd_soc_read(codec, reg) >> shift) & mask;
3123 if (invert)
3124 ucontrol->value.integer.value[0] =
3125 max - ucontrol->value.integer.value[0];
3126 ucontrol->value.integer.value[0] =
3127 ucontrol->value.integer.value[0] - min;
3128
9bde4f0b
MB		 3129 if (snd_soc_volsw_is_stereo(mc)) {
3130 ucontrol->value.integer.value[1] =
3131 (snd_soc_read(codec, rreg) >> shift) & mask;
3132 if (invert)
3133 ucontrol->value.integer.value[1] =
3134 max - ucontrol->value.integer.value[1];
3135 ucontrol->value.integer.value[1] =
3136 ucontrol->value.integer.value[1] - min;
3137 }
3138
6c9d8cf6
AT		 3139 return 0;
3140}
3141EXPORT_SYMBOL_GPL(snd_soc_get_volsw_range);
3142
637d3847
PU		 3143/**
3144 * snd_soc_limit_volume - Set new limit to an existing volume control.
3145 *
3146 * @codec: where to look for the control
3147 * @name: Name of the control
3148 * @max: new maximum limit
3149 *
3150 * Return 0 for success, else error.
3151 */
3152int snd_soc_limit_volume(struct snd_soc_codec *codec,
3153 const char *name, int max)
3154{
f0fba2ad 3155 struct snd_card *card = codec->card->snd_card;
637d3847
PU		 3156 struct snd_kcontrol *kctl;
3157 struct soc_mixer_control *mc;
3158 int found = 0;
3159 int ret = -EINVAL;
3160
3161 /* Sanity check for name and max */
3162 if (unlikely(!name || max <= 0))
3163 return -EINVAL;
3164
3165 list_for_each_entry(kctl, &card->controls, list) {
3166 if (!strncmp(kctl->id.name, name, sizeof(kctl->id.name))) {
3167 found = 1;
3168 break;
3169 }
3170 }
3171 if (found) {
3172 mc = (struct soc_mixer_control *)kctl->private_value;
3173 if (max <= mc->max) {
d11bb4a9 3174 mc->platform_max = max;
637d3847
PU		 3175 ret = 0;
3176 }
3177 }
3178 return ret;
3179}
3180EXPORT_SYMBOL_GPL(snd_soc_limit_volume);
3181
71d08516
MB		 3182int snd_soc_bytes_info(struct snd_kcontrol *kcontrol,
3183 struct snd_ctl_elem_info *uinfo)
3184{
3185 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3186 struct soc_bytes *params = (void *)kcontrol->private_value;
3187
3188 uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
3189 uinfo->count = params->num_regs * codec->val_bytes;
3190
3191 return 0;
3192}
3193EXPORT_SYMBOL_GPL(snd_soc_bytes_info);
3194
3195int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
3196 struct snd_ctl_elem_value *ucontrol)
3197{
3198 struct soc_bytes *params = (void *)kcontrol->private_value;
3199 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3200 int ret;
3201
3202 if (codec->using_regmap)
3203 ret = regmap_raw_read(codec->control_data, params->base,
3204 ucontrol->value.bytes.data,
3205 params->num_regs * codec->val_bytes);
3206 else
3207 ret = -EINVAL;
3208
f831b055
MB		 3209 /* Hide any masked bytes to ensure consistent data reporting */
3210 if (ret == 0 && params->mask) {
3211 switch (codec->val_bytes) {
3212 case 1:
3213 ucontrol->value.bytes.data[0] &= ~params->mask;
3214 break;
3215 case 2:
3216 ((u16 *)(&ucontrol->value.bytes.data))[0]
8f1ec93a 3217 &= cpu_to_be16(~params->mask);
f831b055
MB		 3218 break;
3219 case 4:
3220 ((u32 *)(&ucontrol->value.bytes.data))[0]
8f1ec93a 3221 &= cpu_to_be32(~params->mask);
f831b055
MB		 3222 break;
3223 default:
3224 return -EINVAL;
3225 }
3226 }
3227
71d08516
MB		 3228 return ret;
3229}
3230EXPORT_SYMBOL_GPL(snd_soc_bytes_get);
3231
3232int snd_soc_bytes_put(struct snd_kcontrol *kcontrol,
3233 struct snd_ctl_elem_value *ucontrol)
3234{
3235 struct soc_bytes *params = (void *)kcontrol->private_value;
3236 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
f831b055 3237 int ret, len;
a1a564ed 3238 unsigned int val, mask;
f831b055 3239 void *data;
71d08516 3240
f831b055
MB		 3241 if (!codec->using_regmap)
3242 return -EINVAL;
3243
f831b055
MB		 3244 len = params->num_regs * codec->val_bytes;
3245
b5a8fe43
MB		 3246 data = kmemdup(ucontrol->value.bytes.data, len, GFP_KERNEL | GFP_DMA);
3247 if (!data)
3248 return -ENOMEM;
3249
f831b055
MB		 3250 /*
3251 * If we've got a mask then we need to preserve the register
3252 * bits. We shouldn't modify the incoming data so take a
3253 * copy.
3254 */
3255 if (params->mask) {
3256 ret = regmap_read(codec->control_data, params->base, &val);
3257 if (ret != 0)
e8b18add 3258 goto out;
f831b055
MB		 3259
3260 val &= params->mask;
3261
f831b055
MB		 3262 switch (codec->val_bytes) {
3263 case 1:
3264 ((u8 *)data)[0] &= ~params->mask;
3265 ((u8 *)data)[0] |= val;
3266 break;
3267 case 2:
a1a564ed
NC		 3268 mask = ~params->mask;
3269 ret = regmap_parse_val(codec->control_data,
3270 &mask, &mask);
3271 if (ret != 0)
3272 goto out;
3273
3274 ((u16 *)data)[0] &= mask;
3275
3276 ret = regmap_parse_val(codec->control_data,
3277 &val, &val);
3278 if (ret != 0)
3279 goto out;
3280
3281 ((u16 *)data)[0] |= val;
f831b055
MB		 3282 break;
3283 case 4:
a1a564ed
NC		 3284 mask = ~params->mask;
3285 ret = regmap_parse_val(codec->control_data,
3286 &mask, &mask);
3287 if (ret != 0)
3288 goto out;
3289
3290 ((u32 *)data)[0] &= mask;
3291
3292 ret = regmap_parse_val(codec->control_data,
3293 &val, &val);
3294 if (ret != 0)
3295 goto out;
3296
3297 ((u32 *)data)[0] |= val;
f831b055
MB		 3298 break;
3299 default:
e8b18add
WY		 3300 ret = -EINVAL;
3301 goto out;
f831b055
MB		 3302 }
3303 }
3304
3305 ret = regmap_raw_write(codec->control_data, params->base,
3306 data, len);
3307
e8b18add 3308out:
b5a8fe43 3309 kfree(data);
71d08516
MB		 3310
3311 return ret;
3312}
3313EXPORT_SYMBOL_GPL(snd_soc_bytes_put);
3314
4183eed2
KK		 3315/**
3316 * snd_soc_info_xr_sx - signed multi register info callback
3317 * @kcontrol: mreg control
3318 * @uinfo: control element information
3319 *
3320 * Callback to provide information of a control that can
3321 * span multiple codec registers which together
3322 * forms a single signed value in a MSB/LSB manner.
3323 *
3324 * Returns 0 for success.
3325 */
3326int snd_soc_info_xr_sx(struct snd_kcontrol *kcontrol,
3327 struct snd_ctl_elem_info *uinfo)
3328{
3329 struct soc_mreg_control *mc =
3330 (struct soc_mreg_control *)kcontrol->private_value;
3331 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
3332 uinfo->count = 1;
3333 uinfo->value.integer.min = mc->min;
3334 uinfo->value.integer.max = mc->max;
3335
3336 return 0;
3337}
3338EXPORT_SYMBOL_GPL(snd_soc_info_xr_sx);
3339
3340/**
3341 * snd_soc_get_xr_sx - signed multi register get callback
3342 * @kcontrol: mreg control
3343 * @ucontrol: control element information
3344 *
3345 * Callback to get the value of a control that can span
3346 * multiple codec registers which together forms a single
3347 * signed value in a MSB/LSB manner. The control supports
3348 * specifying total no of bits used to allow for bitfields
3349 * across the multiple codec registers.
3350 *
3351 * Returns 0 for success.
3352 */
3353int snd_soc_get_xr_sx(struct snd_kcontrol *kcontrol,
3354 struct snd_ctl_elem_value *ucontrol)
3355{
3356 struct soc_mreg_control *mc =
3357 (struct soc_mreg_control *)kcontrol->private_value;
3358 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3359 unsigned int regbase = mc->regbase;
3360 unsigned int regcount = mc->regcount;
3361 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3362 unsigned int regwmask = (1<<regwshift)-1;
3363 unsigned int invert = mc->invert;
3364 unsigned long mask = (1UL<<mc->nbits)-1;
3365 long min = mc->min;
3366 long max = mc->max;
3367 long val = 0;
3368 unsigned long regval;
3369 unsigned int i;
3370
3371 for (i = 0; i < regcount; i++) {
3372 regval = snd_soc_read(codec, regbase+i) & regwmask;
3373 val |= regval << (regwshift*(regcount-i-1));
3374 }
3375 val &= mask;
3376 if (min < 0 && val > max)
3377 val |= ~mask;
3378 if (invert)
3379 val = max - val;
3380 ucontrol->value.integer.value[0] = val;
3381
3382 return 0;
3383}
3384EXPORT_SYMBOL_GPL(snd_soc_get_xr_sx);
3385
3386/**
3387 * snd_soc_put_xr_sx - signed multi register get callback
3388 * @kcontrol: mreg control
3389 * @ucontrol: control element information
3390 *
3391 * Callback to set the value of a control that can span
3392 * multiple codec registers which together forms a single
3393 * signed value in a MSB/LSB manner. The control supports
3394 * specifying total no of bits used to allow for bitfields
3395 * across the multiple codec registers.
3396 *
3397 * Returns 0 for success.
3398 */
3399int snd_soc_put_xr_sx(struct snd_kcontrol *kcontrol,
3400 struct snd_ctl_elem_value *ucontrol)
3401{
3402 struct soc_mreg_control *mc =
3403 (struct soc_mreg_control *)kcontrol->private_value;
3404 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3405 unsigned int regbase = mc->regbase;
3406 unsigned int regcount = mc->regcount;
3407 unsigned int regwshift = codec->driver->reg_word_size * BITS_PER_BYTE;
3408 unsigned int regwmask = (1<<regwshift)-1;
3409 unsigned int invert = mc->invert;
3410 unsigned long mask = (1UL<<mc->nbits)-1;
4183eed2
KK		 3411 long max = mc->max;
3412 long val = ucontrol->value.integer.value[0];
3413 unsigned int i, regval, regmask;
3414 int err;
3415
3416 if (invert)
3417 val = max - val;
3418 val &= mask;
3419 for (i = 0; i < regcount; i++) {
3420 regval = (val >> (regwshift*(regcount-i-1))) & regwmask;
3421 regmask = (mask >> (regwshift*(regcount-i-1))) & regwmask;
3422 err = snd_soc_update_bits_locked(codec, regbase+i,
3423 regmask, regval);
3424 if (err < 0)
3425 return err;
3426 }
3427
3428 return 0;
3429}
3430EXPORT_SYMBOL_GPL(snd_soc_put_xr_sx);
3431
dd7b10b3
KK		 3432/**
3433 * snd_soc_get_strobe - strobe get callback
3434 * @kcontrol: mixer control
3435 * @ucontrol: control element information
3436 *
3437 * Callback get the value of a strobe mixer control.
3438 *
3439 * Returns 0 for success.
3440 */
3441int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
3442 struct snd_ctl_elem_value *ucontrol)
3443{
3444 struct soc_mixer_control *mc =
3445 (struct soc_mixer_control *)kcontrol->private_value;
3446 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3447 unsigned int reg = mc->reg;
3448 unsigned int shift = mc->shift;
3449 unsigned int mask = 1 << shift;
3450 unsigned int invert = mc->invert != 0;
3451 unsigned int val = snd_soc_read(codec, reg) & mask;
3452
3453 if (shift != 0 && val != 0)
3454 val = val >> shift;
3455 ucontrol->value.enumerated.item[0] = val ^ invert;
3456
3457 return 0;
3458}
3459EXPORT_SYMBOL_GPL(snd_soc_get_strobe);
3460
3461/**
3462 * snd_soc_put_strobe - strobe put callback
3463 * @kcontrol: mixer control
3464 * @ucontrol: control element information
3465 *
3466 * Callback strobe a register bit to high then low (or the inverse)
3467 * in one pass of a single mixer enum control.
3468 *
3469 * Returns 1 for success.
3470 */
3471int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
3472 struct snd_ctl_elem_value *ucontrol)
3473{
3474 struct soc_mixer_control *mc =
3475 (struct soc_mixer_control *)kcontrol->private_value;
3476 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
3477 unsigned int reg = mc->reg;
3478 unsigned int shift = mc->shift;
3479 unsigned int mask = 1 << shift;
3480 unsigned int invert = mc->invert != 0;
3481 unsigned int strobe = ucontrol->value.enumerated.item[0] != 0;
3482 unsigned int val1 = (strobe ^ invert) ? mask : 0;
3483 unsigned int val2 = (strobe ^ invert) ? 0 : mask;
3484 int err;
3485
3486 err = snd_soc_update_bits_locked(codec, reg, mask, val1);
3487 if (err < 0)
3488 return err;
3489
3490 err = snd_soc_update_bits_locked(codec, reg, mask, val2);
3491 return err;
3492}
3493EXPORT_SYMBOL_GPL(snd_soc_put_strobe);
3494
8c6529db
LG		 3495/**
3496 * snd_soc_dai_set_sysclk - configure DAI system or master clock.
3497 * @dai: DAI
3498 * @clk_id: DAI specific clock ID
3499 * @freq: new clock frequency in Hz
3500 * @dir: new clock direction - input/output.
3501 *
3502 * Configures the DAI master (MCLK) or system (SYSCLK) clocking.
3503 */
3504int snd_soc_dai_set_sysclk(struct snd_soc_dai *dai, int clk_id,
3505 unsigned int freq, int dir)
3506{
f0fba2ad
LG		 3507 if (dai->driver && dai->driver->ops->set_sysclk)
3508 return dai->driver->ops->set_sysclk(dai, clk_id, freq, dir);
ec4ee52a 3509 else if (dai->codec && dai->codec->driver->set_sysclk)
da1c6ea6 3510 return dai->codec->driver->set_sysclk(dai->codec, clk_id, 0,
ec4ee52a 3511 freq, dir);
8c6529db 3512 else
1104a9c8 3513 return -ENOTSUPP;
8c6529db
LG		 3514}
3515EXPORT_SYMBOL_GPL(snd_soc_dai_set_sysclk);
3516
ec4ee52a
MB		 3517/**
3518 * snd_soc_codec_set_sysclk - configure CODEC system or master clock.
3519 * @codec: CODEC
3520 * @clk_id: DAI specific clock ID
da1c6ea6 3521 * @source: Source for the clock
ec4ee52a
MB		 3522 * @freq: new clock frequency in Hz
3523 * @dir: new clock direction - input/output.
3524 *
3525 * Configures the CODEC master (MCLK) or system (SYSCLK) clocking.
3526 */
3527int snd_soc_codec_set_sysclk(struct snd_soc_codec *codec, int clk_id,
da1c6ea6 3528 int source, unsigned int freq, int dir)
ec4ee52a
MB		 3529{
3530 if (codec->driver->set_sysclk)
da1c6ea6
MB		 3531 return codec->driver->set_sysclk(codec, clk_id, source,
3532 freq, dir);
ec4ee52a 3533 else
1104a9c8 3534 return -ENOTSUPP;
ec4ee52a
MB		 3535}
3536EXPORT_SYMBOL_GPL(snd_soc_codec_set_sysclk);
3537
8c6529db
LG		 3538/**
3539 * snd_soc_dai_set_clkdiv - configure DAI clock dividers.
3540 * @dai: DAI
ac11a2b3 3541 * @div_id: DAI specific clock divider ID
8c6529db
LG		 3542 * @div: new clock divisor.
3543 *
3544 * Configures the clock dividers. This is used to derive the best DAI bit and
3545 * frame clocks from the system or master clock. It's best to set the DAI bit
3546 * and frame clocks as low as possible to save system power.
3547 */
3548int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
3549 int div_id, int div)
3550{
f0fba2ad
LG		 3551 if (dai->driver && dai->driver->ops->set_clkdiv)
3552 return dai->driver->ops->set_clkdiv(dai, div_id, div);
8c6529db
LG		 3553 else
3554 return -EINVAL;
3555}
3556EXPORT_SYMBOL_GPL(snd_soc_dai_set_clkdiv);
3557
3558/**
3559 * snd_soc_dai_set_pll - configure DAI PLL.
3560 * @dai: DAI
3561 * @pll_id: DAI specific PLL ID
85488037 3562 * @source: DAI specific source for the PLL
8c6529db
LG		 3563 * @freq_in: PLL input clock frequency in Hz
3564 * @freq_out: requested PLL output clock frequency in Hz
3565 *
3566 * Configures and enables PLL to generate output clock based on input clock.
3567 */
85488037
MB		 3568int snd_soc_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
3569 unsigned int freq_in, unsigned int freq_out)
8c6529db 3570{
f0fba2ad
LG		 3571 if (dai->driver && dai->driver->ops->set_pll)
3572 return dai->driver->ops->set_pll(dai, pll_id, source,
85488037 3573 freq_in, freq_out);
ec4ee52a
MB		 3574 else if (dai->codec && dai->codec->driver->set_pll)
3575 return dai->codec->driver->set_pll(dai->codec, pll_id, source,
3576 freq_in, freq_out);
8c6529db
LG		 3577 else
3578 return -EINVAL;
3579}
3580EXPORT_SYMBOL_GPL(snd_soc_dai_set_pll);
3581
ec4ee52a
MB		 3582/*
3583 * snd_soc_codec_set_pll - configure codec PLL.
3584 * @codec: CODEC
3585 * @pll_id: DAI specific PLL ID
3586 * @source: DAI specific source for the PLL
3587 * @freq_in: PLL input clock frequency in Hz
3588 * @freq_out: requested PLL output clock frequency in Hz
3589 *
3590 * Configures and enables PLL to generate output clock based on input clock.
3591 */
3592int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
3593 unsigned int freq_in, unsigned int freq_out)
3594{
3595 if (codec->driver->set_pll)
3596 return codec->driver->set_pll(codec, pll_id, source,
3597 freq_in, freq_out);
3598 else
3599 return -EINVAL;
3600}
3601EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll);
3602
e54cf76b
LG		 3603/**
3604 * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
3605 * @dai: DAI
3606 * @ratio Ratio of BCLK to Sample rate.
3607 *
3608 * Configures the DAI for a preset BCLK to sample rate ratio.
3609 */
3610int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
3611{
3612 if (dai->driver && dai->driver->ops->set_bclk_ratio)
3613 return dai->driver->ops->set_bclk_ratio(dai, ratio);
3614 else
3615 return -EINVAL;
3616}
3617EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);
3618
8c6529db
LG		 3619/**
3620 * snd_soc_dai_set_fmt - configure DAI hardware audio format.
3621 * @dai: DAI
8c6529db
LG		 3622 * @fmt: SND_SOC_DAIFMT_ format value.
3623 *
3624 * Configures the DAI hardware format and clocking.
3625 */
3626int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
3627{
5e4ba569 3628 if (dai->driver == NULL)
8c6529db 3629 return -EINVAL;
5e4ba569
SG		 3630 if (dai->driver->ops->set_fmt == NULL)
3631 return -ENOTSUPP;
3632 return dai->driver->ops->set_fmt(dai, fmt);
8c6529db
LG		 3633}
3634EXPORT_SYMBOL_GPL(snd_soc_dai_set_fmt);
3635
3636/**
3637 * snd_soc_dai_set_tdm_slot - configure DAI TDM.
3638 * @dai: DAI
a5479e38
DR		 3639 * @tx_mask: bitmask representing active TX slots.
3640 * @rx_mask: bitmask representing active RX slots.
8c6529db 3641 * @slots: Number of slots in use.
a5479e38 3642 * @slot_width: Width in bits for each slot.
8c6529db
LG		 3643 *
3644 * Configures a DAI for TDM operation. Both mask and slots are codec and DAI
3645 * specific.
3646 */
3647int snd_soc_dai_set_tdm_slot(struct snd_soc_dai *dai,
a5479e38 3648 unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
8c6529db 3649{
f0fba2ad
LG		 3650 if (dai->driver && dai->driver->ops->set_tdm_slot)
3651 return dai->driver->ops->set_tdm_slot(dai, tx_mask, rx_mask,
a5479e38 3652 slots, slot_width);
8c6529db 3653 else
b2cbb6e1 3654 return -ENOTSUPP;
8c6529db
LG		 3655}
3656EXPORT_SYMBOL_GPL(snd_soc_dai_set_tdm_slot);
3657
472df3cb
BS		 3658/**
3659 * snd_soc_dai_set_channel_map - configure DAI audio channel map
3660 * @dai: DAI
3661 * @tx_num: how many TX channels
3662 * @tx_slot: pointer to an array which imply the TX slot number channel
3663 * 0~num-1 uses
3664 * @rx_num: how many RX channels
3665 * @rx_slot: pointer to an array which imply the RX slot number channel
3666 * 0~num-1 uses
3667 *
3668 * configure the relationship between channel number and TDM slot number.
3669 */
3670int snd_soc_dai_set_channel_map(struct snd_soc_dai *dai,
3671 unsigned int tx_num, unsigned int *tx_slot,
3672 unsigned int rx_num, unsigned int *rx_slot)
3673{
f0fba2ad
LG		 3674 if (dai->driver && dai->driver->ops->set_channel_map)
3675 return dai->driver->ops->set_channel_map(dai, tx_num, tx_slot,
472df3cb
BS		 3676 rx_num, rx_slot);
3677 else
3678 return -EINVAL;
3679}
3680EXPORT_SYMBOL_GPL(snd_soc_dai_set_channel_map);
3681
8c6529db
LG		 3682/**
3683 * snd_soc_dai_set_tristate - configure DAI system or master clock.
3684 * @dai: DAI
3685 * @tristate: tristate enable
3686 *
3687 * Tristates the DAI so that others can use it.
3688 */
3689int snd_soc_dai_set_tristate(struct snd_soc_dai *dai, int tristate)
3690{
f0fba2ad
LG		 3691 if (dai->driver && dai->driver->ops->set_tristate)
3692 return dai->driver->ops->set_tristate(dai, tristate);
8c6529db
LG		 3693 else
3694 return -EINVAL;
3695}
3696EXPORT_SYMBOL_GPL(snd_soc_dai_set_tristate);
3697
3698/**
3699 * snd_soc_dai_digital_mute - configure DAI system or master clock.
3700 * @dai: DAI
3701 * @mute: mute enable
da18396f 3702 * @direction: stream to mute
8c6529db
LG		 3703 *
3704 * Mutes the DAI DAC.
3705 */
da18396f
MB		 3706int snd_soc_dai_digital_mute(struct snd_soc_dai *dai, int mute,
3707 int direction)
8c6529db 3708{
da18396f
MB		 3709 if (!dai->driver)
3710 return -ENOTSUPP;
3711
3712 if (dai->driver->ops->mute_stream)
3713 return dai->driver->ops->mute_stream(dai, mute, direction);
3714 else if (direction == SNDRV_PCM_STREAM_PLAYBACK &&
3715 dai->driver->ops->digital_mute)
f0fba2ad 3716 return dai->driver->ops->digital_mute(dai, mute);
8c6529db 3717 else
04570c62 3718 return -ENOTSUPP;
8c6529db
LG		 3719}
3720EXPORT_SYMBOL_GPL(snd_soc_dai_digital_mute);
3721
c5af3a2e
MB		 3722/**
3723 * snd_soc_register_card - Register a card with the ASoC core
3724 *
ac11a2b3 3725 * @card: Card to register
c5af3a2e 3726 *
c5af3a2e 3727 */
70a7ca34 3728int snd_soc_register_card(struct snd_soc_card *card)
c5af3a2e 3729{
b19e6e7b 3730 int i, ret;
f0fba2ad 3731
c5af3a2e
MB		 3732 if (!card->name || !card->dev)
3733 return -EINVAL;
3734
5a504963
SW		 3735 for (i = 0; i < card->num_links; i++) {
3736 struct snd_soc_dai_link *link = &card->dai_link[i];
3737
3738 /*
3739 * Codec must be specified by 1 of name or OF node,
3740 * not both or neither.
3741 */
3742 if (!!link->codec_name == !!link->codec_of_node) {
10e8aa9a
MM		 3743 dev_err(card->dev,
3744 "ASoC: Neither/both codec name/of_node are set for %s\n",
3745 link->name);
5a504963
SW		 3746 return -EINVAL;
3747 }
bc92657a
SW		 3748 /* Codec DAI name must be specified */
3749 if (!link->codec_dai_name) {
10e8aa9a
MM		 3750 dev_err(card->dev,
3751 "ASoC: codec_dai_name not set for %s\n",
3752 link->name);
bc92657a
SW		 3753 return -EINVAL;
3754 }
5a504963
SW		 3755
3756 /*
3757 * Platform may be specified by either name or OF node, but
3758 * can be left unspecified, and a dummy platform will be used.
3759 */
3760 if (link->platform_name && link->platform_of_node) {
10e8aa9a
MM		 3761 dev_err(card->dev,
3762 "ASoC: Both platform name/of_node are set for %s\n",
3763 link->name);
5a504963
SW		 3764 return -EINVAL;
3765 }
3766
3767 /*
bc92657a
SW		 3768 * CPU device may be specified by either name or OF node, but
3769 * can be left unspecified, and will be matched based on DAI
3770 * name alone..
3771 */
3772 if (link->cpu_name && link->cpu_of_node) {
10e8aa9a
MM		 3773 dev_err(card->dev,
3774 "ASoC: Neither/both cpu name/of_node are set for %s\n",
3775 link->name);
bc92657a
SW		 3776 return -EINVAL;
3777 }
3778 /*
3779 * At least one of CPU DAI name or CPU device name/node must be
3780 * specified
5a504963 3781 */
bc92657a
SW		 3782 if (!link->cpu_dai_name &&
3783 !(link->cpu_name || link->cpu_of_node)) {
10e8aa9a
MM		 3784 dev_err(card->dev,
3785 "ASoC: Neither cpu_dai_name nor cpu_name/of_node are set for %s\n",
3786 link->name);
5a504963
SW		 3787 return -EINVAL;
3788 }
3789 }
3790
ed77cc12
MB		 3791 dev_set_drvdata(card->dev, card);
3792
111c6419
SW		 3793 snd_soc_initialize_card_lists(card);
3794
150dd2f8
VK		 3795 soc_init_card_debugfs(card);
3796
181a6892
MB		 3797 card->rtd = devm_kzalloc(card->dev,
3798 sizeof(struct snd_soc_pcm_runtime) *
3799 (card->num_links + card->num_aux_devs),
3800 GFP_KERNEL);
f0fba2ad
LG		 3801 if (card->rtd == NULL)
3802 return -ENOMEM;
a7dbb603 3803 card->num_rtd = 0;
2eea392d 3804 card->rtd_aux = &card->rtd[card->num_links];
f0fba2ad
LG		 3805
3806 for (i = 0; i < card->num_links; i++)
3807 card->rtd[i].dai_link = &card->dai_link[i];
3808
c5af3a2e 3809 INIT_LIST_HEAD(&card->list);
db432b41 3810 INIT_LIST_HEAD(&card->dapm_dirty);
c5af3a2e 3811 card->instantiated = 0;
f0fba2ad 3812 mutex_init(&card->mutex);
a73fb2df 3813 mutex_init(&card->dapm_mutex);
c5af3a2e 3814
b19e6e7b
MB		 3815 ret = snd_soc_instantiate_card(card);
3816 if (ret != 0)
3817 soc_cleanup_card_debugfs(card);
c5af3a2e 3818
988e8cc4
NC		 3819 /* deactivate pins to sleep state */
3820 for (i = 0; i < card->num_rtd; i++) {
3821 struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
3822 struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
3823 if (!codec_dai->active)
3824 pinctrl_pm_select_sleep_state(codec_dai->dev);
3825 if (!cpu_dai->active)
3826 pinctrl_pm_select_sleep_state(cpu_dai->dev);
3827 }
3828
b19e6e7b 3829 return ret;
c5af3a2e 3830}
70a7ca34 3831EXPORT_SYMBOL_GPL(snd_soc_register_card);
c5af3a2e
MB		 3832
3833/**
3834 * snd_soc_unregister_card - Unregister a card with the ASoC core
3835 *
ac11a2b3 3836 * @card: Card to unregister
c5af3a2e 3837 *
c5af3a2e 3838 */
70a7ca34 3839int snd_soc_unregister_card(struct snd_soc_card *card)
c5af3a2e 3840{
b0e26485
VK		 3841 if (card->instantiated)
3842 soc_cleanup_card_resources(card);
f110bfc7 3843 dev_dbg(card->dev, "ASoC: Unregistered card '%s'\n", card->name);
c5af3a2e
MB		 3844
3845 return 0;
3846}
70a7ca34 3847EXPORT_SYMBOL_GPL(snd_soc_unregister_card);
c5af3a2e 3848
f0fba2ad
LG		 3849/*
3850 * Simplify DAI link configuration by removing ".-1" from device names
3851 * and sanitizing names.
3852 */
0b9a214a 3853static char *fmt_single_name(struct device *dev, int *id)
f0fba2ad
LG		 3854{
3855 char *found, name[NAME_SIZE];
3856 int id1, id2;
3857
3858 if (dev_name(dev) == NULL)
3859 return NULL;
3860
58818a77 3861 strlcpy(name, dev_name(dev), NAME_SIZE);
f0fba2ad
LG		 3862
3863 /* are we a "%s.%d" name (platform and SPI components) */
3864 found = strstr(name, dev->driver->name);
3865 if (found) {
3866 /* get ID */
3867 if (sscanf(&found[strlen(dev->driver->name)], ".%d", id) == 1) {
3868
3869 /* discard ID from name if ID == -1 */
3870 if (*id == -1)
3871 found[strlen(dev->driver->name)] = '\0';
3872 }
3873
3874 } else {
3875 /* I2C component devices are named "bus-addr" */
3876 if (sscanf(name, "%x-%x", &id1, &id2) == 2) {
3877 char tmp[NAME_SIZE];
3878
3879 /* create unique ID number from I2C addr and bus */
05899446 3880 *id = ((id1 & 0xffff) << 16) + id2;
f0fba2ad
LG		 3881
3882 /* sanitize component name for DAI link creation */
3883 snprintf(tmp, NAME_SIZE, "%s.%s", dev->driver->name, name);
58818a77 3884 strlcpy(name, tmp, NAME_SIZE);
f0fba2ad
LG		 3885 } else
3886 *id = 0;
3887 }
3888
3889 return kstrdup(name, GFP_KERNEL);
3890}
3891
3892/*
3893 * Simplify DAI link naming for single devices with multiple DAIs by removing
3894 * any ".-1" and using the DAI name (instead of device name).
3895 */
3896static inline char *fmt_multiple_name(struct device *dev,
3897 struct snd_soc_dai_driver *dai_drv)
3898{
3899 if (dai_drv->name == NULL) {
10e8aa9a
MM		 3900 dev_err(dev,
3901 "ASoC: error - multiple DAI %s registered with no name\n",
3902 dev_name(dev));
f0fba2ad
LG		 3903 return NULL;
3904 }
3905
3906 return kstrdup(dai_drv->name, GFP_KERNEL);
3907}
3908
9115171a 3909/**
32c9ba54 3910 * snd_soc_unregister_dai - Unregister DAIs from the ASoC core
9115171a 3911 *
32c9ba54 3912 * @component: The component for which the DAIs should be unregistered
9115171a 3913 */
32c9ba54 3914static void snd_soc_unregister_dais(struct snd_soc_component *component)
9115171a 3915{
1438c2f6 3916 struct snd_soc_dai *dai;
f0fba2ad 3917
1438c2f6 3918 list_for_each_entry(dai, &component->dai_list, list) {
32c9ba54
LPC		 3919 dev_dbg(component->dev, "ASoC: Unregistered DAI '%s'\n",
3920 dai->name);
3921 kfree(dai->name);
3922 kfree(dai);
f0fba2ad 3923 }
9115171a 3924}
9115171a
MB		 3925
3926/**
32c9ba54 3927 * snd_soc_register_dais - Register a DAI with the ASoC core
9115171a 3928 *
6106d129 3929 * @component: The component the DAIs are registered for
6cc240f3
LPC		 3930 * @codec: The CODEC that the DAIs are registered for, NULL if the component is
3931 * not a CODEC.
6106d129 3932 * @dai_drv: DAI driver to use for the DAIs
ac11a2b3 3933 * @count: Number of DAIs
32c9ba54
LPC		 3934 * @legacy_dai_naming: Use the legacy naming scheme and let the DAI inherit the
3935 * parent's name.
9115171a 3936 */
6106d129 3937static int snd_soc_register_dais(struct snd_soc_component *component,
6cc240f3
LPC		 3938 struct snd_soc_codec *codec, struct snd_soc_dai_driver *dai_drv,
3939 size_t count, bool legacy_dai_naming)
9115171a 3940{
6106d129 3941 struct device *dev = component->dev;
f0fba2ad 3942 struct snd_soc_dai *dai;
32c9ba54
LPC		 3943 unsigned int i;
3944 int ret;
f0fba2ad 3945
f110bfc7 3946 dev_dbg(dev, "ASoC: dai register %s #%Zu\n", dev_name(dev), count);
9115171a
MB		 3947
3948 for (i = 0; i < count; i++) {
f0fba2ad
LG		 3949
3950 dai = kzalloc(sizeof(struct snd_soc_dai), GFP_KERNEL);
c46e0079
AL		 3951 if (dai == NULL) {
3952 ret = -ENOMEM;
3953 goto err;
3954 }
f0fba2ad 3955
32c9ba54
LPC		 3956 /*
3957 * Back in the old days when we still had component-less DAIs,
3958 * instead of having a static name, component-less DAIs would
3959 * inherit the name of the parent device so it is possible to
3960 * register multiple instances of the DAI. We still need to keep
3961 * the same naming style even though those DAIs are not
3962 * component-less anymore.
3963 */
3964 if (count == 1 && legacy_dai_naming) {
3965 dai->name = fmt_single_name(dev, &dai->id);
3966 } else {
3967 dai->name = fmt_multiple_name(dev, &dai_drv[i]);
3968 if (dai_drv[i].id)
3969 dai->id = dai_drv[i].id;
3970 else
3971 dai->id = i;
3972 }
f0fba2ad
LG		 3973 if (dai->name == NULL) {
3974 kfree(dai);
32c9ba54 3975 ret = -ENOMEM;
9115171a 3976 goto err;
f0fba2ad
LG		 3977 }
3978
6106d129 3979 dai->component = component;
6cc240f3 3980 dai->codec = codec;
f0fba2ad 3981 dai->dev = dev;
f0fba2ad 3982 dai->driver = &dai_drv[i];
be09ad90 3983 dai->dapm.dev = dev;
f0fba2ad
LG		 3984 if (!dai->driver->ops)
3985 dai->driver->ops = &null_dai_ops;
3986
5f800080
PU		 3987 if (!dai->codec)
3988 dai->dapm.idle_bias_off = 1;
3989
1438c2f6 3990 list_add(&dai->list, &component->dai_list);
f0fba2ad 3991
32c9ba54 3992 dev_dbg(dev, "ASoC: Registered DAI '%s'\n", dai->name);
9115171a
MB		 3993 }
3994
3995 return 0;
3996
3997err:
32c9ba54 3998 snd_soc_unregister_dais(component);
9115171a
MB		 3999
4000 return ret;
4001}
9115171a 4002
d191bd8d
KM		 4003/**
4004 * snd_soc_register_component - Register a component with the ASoC core
4005 *
4006 */
4007static int
4008__snd_soc_register_component(struct device *dev,
4009 struct snd_soc_component *cmpnt,
4010 const struct snd_soc_component_driver *cmpnt_drv,
6cc240f3 4011 struct snd_soc_codec *codec,
d191bd8d
KM		 4012 struct snd_soc_dai_driver *dai_drv,
4013 int num_dai, bool allow_single_dai)
4014{
4015 int ret;
4016
4017 dev_dbg(dev, "component register %s\n", dev_name(dev));
4018
4019 if (!cmpnt) {
4020 dev_err(dev, "ASoC: Failed to connecting component\n");
4021 return -ENOMEM;
4022 }
4023
4024 cmpnt->name = fmt_single_name(dev, &cmpnt->id);
4025 if (!cmpnt->name) {
4026 dev_err(dev, "ASoC: Failed to simplifying name\n");
4027 return -ENOMEM;
4028 }
4029
4030 cmpnt->dev = dev;
4031 cmpnt->driver = cmpnt_drv;
6833c452 4032 cmpnt->dai_drv = dai_drv;
d191bd8d 4033 cmpnt->num_dai = num_dai;
1438c2f6 4034 INIT_LIST_HEAD(&cmpnt->dai_list);
d191bd8d 4035
6cc240f3
LPC		 4036 ret = snd_soc_register_dais(cmpnt, codec, dai_drv, num_dai,
4037 allow_single_dai);
d191bd8d
KM		 4038 if (ret < 0) {
4039 dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret);
4040 goto error_component_name;
4041 }
4042
4043 mutex_lock(&client_mutex);
4044 list_add(&cmpnt->list, &component_list);
4045 mutex_unlock(&client_mutex);
4046
4047 dev_dbg(cmpnt->dev, "ASoC: Registered component '%s'\n", cmpnt->name);
4048
4049 return ret;
4050
4051error_component_name:
4052 kfree(cmpnt->name);
4053
4054 return ret;
4055}
4056
4057int snd_soc_register_component(struct device *dev,
4058 const struct snd_soc_component_driver *cmpnt_drv,
4059 struct snd_soc_dai_driver *dai_drv,
4060 int num_dai)
4061{
4062 struct snd_soc_component *cmpnt;
4063
4064 cmpnt = devm_kzalloc(dev, sizeof(*cmpnt), GFP_KERNEL);
4065 if (!cmpnt) {
4066 dev_err(dev, "ASoC: Failed to allocate memory\n");
4067 return -ENOMEM;
4068 }
4069
3d59400f
LPC		 4070 cmpnt->ignore_pmdown_time = true;
4071
6cc240f3 4072 return __snd_soc_register_component(dev, cmpnt, cmpnt_drv, NULL,
d191bd8d
KM		 4073 dai_drv, num_dai, true);
4074}
4075EXPORT_SYMBOL_GPL(snd_soc_register_component);
4076
4077/**
4078 * snd_soc_unregister_component - Unregister a component from the ASoC core
4079 *
4080 */
4081void snd_soc_unregister_component(struct device *dev)
4082{
4083 struct snd_soc_component *cmpnt;
4084
4085 list_for_each_entry(cmpnt, &component_list, list) {
4086 if (dev == cmpnt->dev)
4087 goto found;
4088 }
4089 return;
4090
4091found:
32c9ba54 4092 snd_soc_unregister_dais(cmpnt);
d191bd8d
KM		 4093
4094 mutex_lock(&client_mutex);
4095 list_del(&cmpnt->list);
4096 mutex_unlock(&client_mutex);
4097
4098 dev_dbg(dev, "ASoC: Unregistered component '%s'\n", cmpnt->name);
4099 kfree(cmpnt->name);
4100}
4101EXPORT_SYMBOL_GPL(snd_soc_unregister_component);
4102
12a48a8c 4103/**
71a45cda
LPC		 4104 * snd_soc_add_platform - Add a platform to the ASoC core
4105 * @dev: The parent device for the platform
4106 * @platform: The platform to add
4107 * @platform_driver: The driver for the platform
12a48a8c 4108 */
71a45cda 4109int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
d79e57db 4110 const struct snd_soc_platform_driver *platform_drv)
12a48a8c 4111{
f0fba2ad
LG		 4112 /* create platform component name */
4113 platform->name = fmt_single_name(dev, &platform->id);
b5c745fb 4114 if (platform->name == NULL)
f0fba2ad 4115 return -ENOMEM;
12a48a8c 4116
f0fba2ad
LG		 4117 platform->dev = dev;
4118 platform->driver = platform_drv;
b7950641
LG		 4119 platform->dapm.dev = dev;
4120 platform->dapm.platform = platform;
64a648c2 4121 platform->dapm.stream_event = platform_drv->stream_event;
cc22d37e 4122 mutex_init(&platform->mutex);
12a48a8c
MB		 4123
4124 mutex_lock(&client_mutex);
4125 list_add(&platform->list, &platform_list);
4126 mutex_unlock(&client_mutex);
4127
f110bfc7 4128 dev_dbg(dev, "ASoC: Registered platform '%s'\n", platform->name);
12a48a8c
MB		 4129
4130 return 0;
4131}
71a45cda 4132EXPORT_SYMBOL_GPL(snd_soc_add_platform);
12a48a8c
MB		 4133
4134/**
71a45cda 4135 * snd_soc_register_platform - Register a platform with the ASoC core
12a48a8c 4136 *
71a45cda 4137 * @platform: platform to register
12a48a8c 4138 */
71a45cda
LPC		 4139int snd_soc_register_platform(struct device *dev,
4140 const struct snd_soc_platform_driver *platform_drv)
12a48a8c 4141{
f0fba2ad 4142 struct snd_soc_platform *platform;
71a45cda 4143 int ret;
f0fba2ad 4144
71a45cda 4145 dev_dbg(dev, "ASoC: platform register %s\n", dev_name(dev));
f0fba2ad 4146
71a45cda
LPC		 4147 platform = kzalloc(sizeof(struct snd_soc_platform), GFP_KERNEL);
4148 if (platform == NULL)
4149 return -ENOMEM;
4150
4151 ret = snd_soc_add_platform(dev, platform, platform_drv);
4152 if (ret)
4153 kfree(platform);
4154
4155 return ret;
4156}
4157EXPORT_SYMBOL_GPL(snd_soc_register_platform);
4158
4159/**
4160 * snd_soc_remove_platform - Remove a platform from the ASoC core
4161 * @platform: the platform to remove
4162 */
4163void snd_soc_remove_platform(struct snd_soc_platform *platform)
4164{
12a48a8c
MB		 4165 mutex_lock(&client_mutex);
4166 list_del(&platform->list);
4167 mutex_unlock(&client_mutex);
4168
71a45cda
LPC		 4169 dev_dbg(platform->dev, "ASoC: Unregistered platform '%s'\n",
4170 platform->name);
f0fba2ad 4171 kfree(platform->name);
71a45cda
LPC		 4172}
4173EXPORT_SYMBOL_GPL(snd_soc_remove_platform);
4174
4175struct snd_soc_platform *snd_soc_lookup_platform(struct device *dev)
4176{
4177 struct snd_soc_platform *platform;
4178
4179 list_for_each_entry(platform, &platform_list, list) {
4180 if (dev == platform->dev)
4181 return platform;
4182 }
4183
4184 return NULL;
4185}
4186EXPORT_SYMBOL_GPL(snd_soc_lookup_platform);
4187
4188/**
4189 * snd_soc_unregister_platform - Unregister a platform from the ASoC core
4190 *
4191 * @platform: platform to unregister
4192 */
4193void snd_soc_unregister_platform(struct device *dev)
4194{
4195 struct snd_soc_platform *platform;
4196
4197 platform = snd_soc_lookup_platform(dev);
4198 if (!platform)
4199 return;
4200
4201 snd_soc_remove_platform(platform);
f0fba2ad 4202 kfree(platform);
12a48a8c
MB		 4203}
4204EXPORT_SYMBOL_GPL(snd_soc_unregister_platform);
4205
151ab22c
MB		 4206static u64 codec_format_map[] = {
4207 SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE,
4208 SNDRV_PCM_FMTBIT_U16_LE | SNDRV_PCM_FMTBIT_U16_BE,
4209 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S24_BE,
4210 SNDRV_PCM_FMTBIT_U24_LE | SNDRV_PCM_FMTBIT_U24_BE,
4211 SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S32_BE,
4212 SNDRV_PCM_FMTBIT_U32_LE | SNDRV_PCM_FMTBIT_U32_BE,
4213 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
4214 SNDRV_PCM_FMTBIT_U24_3LE | SNDRV_PCM_FMTBIT_U24_3BE,
4215 SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S20_3BE,
4216 SNDRV_PCM_FMTBIT_U20_3LE | SNDRV_PCM_FMTBIT_U20_3BE,
4217 SNDRV_PCM_FMTBIT_S18_3LE | SNDRV_PCM_FMTBIT_S18_3BE,
4218 SNDRV_PCM_FMTBIT_U18_3LE | SNDRV_PCM_FMTBIT_U18_3BE,
4219 SNDRV_PCM_FMTBIT_FLOAT_LE | SNDRV_PCM_FMTBIT_FLOAT_BE,
4220 SNDRV_PCM_FMTBIT_FLOAT64_LE | SNDRV_PCM_FMTBIT_FLOAT64_BE,
4221 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE
4222 | SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
4223};
4224
4225/* Fix up the DAI formats for endianness: codecs don't actually see
4226 * the endianness of the data but we're using the CPU format
4227 * definitions which do need to include endianness so we ensure that
4228 * codec DAIs always have both big and little endian variants set.
4229 */
4230static void fixup_codec_formats(struct snd_soc_pcm_stream *stream)
4231{
4232 int i;
4233
4234 for (i = 0; i < ARRAY_SIZE(codec_format_map); i++)
4235 if (stream->formats & codec_format_map[i])
4236 stream->formats |= codec_format_map[i];
4237}
4238
0d0cf00a
MB		 4239/**
4240 * snd_soc_register_codec - Register a codec with the ASoC core
4241 *
ac11a2b3 4242 * @codec: codec to register
0d0cf00a 4243 */
f0fba2ad 4244int snd_soc_register_codec(struct device *dev,
001ae4c0
MB		 4245 const struct snd_soc_codec_driver *codec_drv,
4246 struct snd_soc_dai_driver *dai_drv,
4247 int num_dai)
0d0cf00a 4248{
f0fba2ad
LG		 4249 struct snd_soc_codec *codec;
4250 int ret, i;
151ab22c 4251
f0fba2ad
LG		 4252 dev_dbg(dev, "codec register %s\n", dev_name(dev));
4253
4254 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
4255 if (codec == NULL)
4256 return -ENOMEM;
0d0cf00a 4257
f0fba2ad
LG		 4258 /* create CODEC component name */
4259 codec->name = fmt_single_name(dev, &codec->id);
4260 if (codec->name == NULL) {
f790b94d
KM		 4261 ret = -ENOMEM;
4262 goto fail_codec;
f0fba2ad
LG		 4263 }
4264
c3acec26
MB		 4265 codec->write = codec_drv->write;
4266 codec->read = codec_drv->read;
1500b7b5
DP		 4267 codec->volatile_register = codec_drv->volatile_register;
4268 codec->readable_register = codec_drv->readable_register;
8020454c 4269 codec->writable_register = codec_drv->writable_register;
3d59400f 4270 codec->component.ignore_pmdown_time = codec_drv->ignore_pmdown_time;
ce6120cc
LG		 4271 codec->dapm.bias_level = SND_SOC_BIAS_OFF;
4272 codec->dapm.dev = dev;
4273 codec->dapm.codec = codec;
474b62d6 4274 codec->dapm.seq_notifier = codec_drv->seq_notifier;
64a648c2 4275 codec->dapm.stream_event = codec_drv->stream_event;
7a30a3db
DP		 4276 codec->dev = dev;
4277 codec->driver = codec_drv;
4278 codec->num_dai = num_dai;
4279 mutex_init(&codec->mutex);
ce6120cc 4280
f0fba2ad
LG		 4281 for (i = 0; i < num_dai; i++) {
4282 fixup_codec_formats(&dai_drv[i].playback);
4283 fixup_codec_formats(&dai_drv[i].capture);
4284 }
4285
054880fe
MB		 4286 mutex_lock(&client_mutex);
4287 list_add(&codec->list, &codec_list);
4288 mutex_unlock(&client_mutex);
4289
d191bd8d
KM		 4290 /* register component */
4291 ret = __snd_soc_register_component(dev, &codec->component,
4292 &codec_drv->component_driver,
6cc240f3 4293 codec, dai_drv, num_dai, false);
5acd7dfb 4294 if (ret < 0) {
d191bd8d 4295 dev_err(codec->dev, "ASoC: Failed to regster component: %d\n", ret);
5acd7dfb 4296 goto fail_codec_name;
26b01ccd 4297 }
f0fba2ad 4298
f110bfc7 4299 dev_dbg(codec->dev, "ASoC: Registered codec '%s'\n", codec->name);
0d0cf00a 4300 return 0;
f0fba2ad 4301
f790b94d 4302fail_codec_name:
e1328a83
KM		 4303 mutex_lock(&client_mutex);
4304 list_del(&codec->list);
4305 mutex_unlock(&client_mutex);
4306
f0fba2ad 4307 kfree(codec->name);
f790b94d 4308fail_codec:
f0fba2ad
LG		 4309 kfree(codec);
4310 return ret;
0d0cf00a
MB		 4311}
4312EXPORT_SYMBOL_GPL(snd_soc_register_codec);
4313
4314/**
4315 * snd_soc_unregister_codec - Unregister a codec from the ASoC core
4316 *
ac11a2b3 4317 * @codec: codec to unregister
0d0cf00a 4318 */
f0fba2ad 4319void snd_soc_unregister_codec(struct device *dev)
0d0cf00a 4320{
f0fba2ad 4321 struct snd_soc_codec *codec;
f0fba2ad
LG		 4322
4323 list_for_each_entry(codec, &codec_list, list) {
4324 if (dev == codec->dev)
4325 goto found;
4326 }
4327 return;
4328
4329found:
d191bd8d 4330 snd_soc_unregister_component(dev);
f0fba2ad 4331
0d0cf00a
MB		 4332 mutex_lock(&client_mutex);
4333 list_del(&codec->list);
4334 mutex_unlock(&client_mutex);
4335
f110bfc7 4336 dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", codec->name);
f0fba2ad 4337
7a30a3db 4338 snd_soc_cache_exit(codec);
1aafcd4d 4339 kfree(codec->name);
f0fba2ad 4340 kfree(codec);
0d0cf00a
MB		 4341}
4342EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
4343
bec4fa05
SW		 4344/* Retrieve a card's name from device tree */
4345int snd_soc_of_parse_card_name(struct snd_soc_card *card,
4346 const char *propname)
4347{
4348 struct device_node *np = card->dev->of_node;
4349 int ret;
4350
4351 ret = of_property_read_string_index(np, propname, 0, &card->name);
4352 /*
4353 * EINVAL means the property does not exist. This is fine providing
4354 * card->name was previously set, which is checked later in
4355 * snd_soc_register_card.
4356 */
4357 if (ret < 0 && ret != -EINVAL) {
4358 dev_err(card->dev,
f110bfc7 4359 "ASoC: Property '%s' could not be read: %d\n",
bec4fa05
SW		 4360 propname, ret);
4361 return ret;
4362 }
4363
4364 return 0;
4365}
4366EXPORT_SYMBOL_GPL(snd_soc_of_parse_card_name);
4367
a4a54dd5
SW		 4368int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
4369 const char *propname)
4370{
4371 struct device_node *np = card->dev->of_node;
4372 int num_routes;
4373 struct snd_soc_dapm_route *routes;
4374 int i, ret;
4375
4376 num_routes = of_property_count_strings(np, propname);
c34ce320 4377 if (num_routes < 0 || num_routes & 1) {
10e8aa9a
MM		 4378 dev_err(card->dev,
4379 "ASoC: Property '%s' does not exist or its length is not even\n",
4380 propname);
a4a54dd5
SW		 4381 return -EINVAL;
4382 }
4383 num_routes /= 2;
4384 if (!num_routes) {
f110bfc7 4385 dev_err(card->dev, "ASoC: Property '%s's length is zero\n",
a4a54dd5
SW		 4386 propname);
4387 return -EINVAL;
4388 }
4389
4390 routes = devm_kzalloc(card->dev, num_routes * sizeof(*routes),
4391 GFP_KERNEL);
4392 if (!routes) {
4393 dev_err(card->dev,
f110bfc7 4394 "ASoC: Could not allocate DAPM route table\n");
a4a54dd5
SW		 4395 return -EINVAL;
4396 }
4397
4398 for (i = 0; i < num_routes; i++) {
4399 ret = of_property_read_string_index(np, propname,
4400 2 * i, &routes[i].sink);
4401 if (ret) {
c871bd0b
MB		 4402 dev_err(card->dev,
4403 "ASoC: Property '%s' index %d could not be read: %d\n",
4404 propname, 2 * i, ret);
a4a54dd5
SW		 4405 return -EINVAL;
4406 }
4407 ret = of_property_read_string_index(np, propname,
4408 (2 * i) + 1, &routes[i].source);
4409 if (ret) {
4410 dev_err(card->dev,
c871bd0b
MB		 4411 "ASoC: Property '%s' index %d could not be read: %d\n",
4412 propname, (2 * i) + 1, ret);
a4a54dd5
SW		 4413 return -EINVAL;
4414 }
4415 }
4416
4417 card->num_dapm_routes = num_routes;
4418 card->dapm_routes = routes;
4419
4420 return 0;
4421}
4422EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing);
4423
a7930ed4
KM		 4424unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
4425 const char *prefix)
4426{
4427 int ret, i;
4428 char prop[128];
4429 unsigned int format = 0;
4430 int bit, frame;
4431 const char *str;
4432 struct {
4433 char *name;
4434 unsigned int val;
4435 } of_fmt_table[] = {
4436 { "i2s", SND_SOC_DAIFMT_I2S },
4437 { "right_j", SND_SOC_DAIFMT_RIGHT_J },
4438 { "left_j", SND_SOC_DAIFMT_LEFT_J },
4439 { "dsp_a", SND_SOC_DAIFMT_DSP_A },
4440 { "dsp_b", SND_SOC_DAIFMT_DSP_B },
4441 { "ac97", SND_SOC_DAIFMT_AC97 },
4442 { "pdm", SND_SOC_DAIFMT_PDM},
4443 { "msb", SND_SOC_DAIFMT_MSB },
4444 { "lsb", SND_SOC_DAIFMT_LSB },
a7930ed4
KM		 4445 };
4446
4447 if (!prefix)
4448 prefix = "";
4449
4450 /*
4451 * check "[prefix]format = xxx"
4452 * SND_SOC_DAIFMT_FORMAT_MASK area
4453 */
4454 snprintf(prop, sizeof(prop), "%sformat", prefix);
4455 ret = of_property_read_string(np, prop, &str);
4456 if (ret == 0) {
4457 for (i = 0; i < ARRAY_SIZE(of_fmt_table); i++) {
4458 if (strcmp(str, of_fmt_table[i].name) == 0) {
4459 format |= of_fmt_table[i].val;
4460 break;
4461 }
4462 }
4463 }
4464
4465 /*
8c2d6a9f 4466 * check "[prefix]continuous-clock"
a7930ed4
KM		 4467 * SND_SOC_DAIFMT_CLOCK_MASK area
4468 */
8c2d6a9f
KM		 4469 snprintf(prop, sizeof(prop), "%scontinuous-clock", prefix);
4470 if (of_get_property(np, prop, NULL))
4471 format |= SND_SOC_DAIFMT_CONT;
4472 else
4473 format |= SND_SOC_DAIFMT_GATED;
a7930ed4
KM		 4474
4475 /*
4476 * check "[prefix]bitclock-inversion"
4477 * check "[prefix]frame-inversion"
4478 * SND_SOC_DAIFMT_INV_MASK area
4479 */
4480 snprintf(prop, sizeof(prop), "%sbitclock-inversion", prefix);
4481 bit = !!of_get_property(np, prop, NULL);
4482
4483 snprintf(prop, sizeof(prop), "%sframe-inversion", prefix);
4484 frame = !!of_get_property(np, prop, NULL);
4485
4486 switch ((bit << 4) + frame) {
4487 case 0x11:
4488 format |= SND_SOC_DAIFMT_IB_IF;
4489 break;
4490 case 0x10:
4491 format |= SND_SOC_DAIFMT_IB_NF;
4492 break;
4493 case 0x01:
4494 format |= SND_SOC_DAIFMT_NB_IF;
4495 break;
4496 default:
4497 /* SND_SOC_DAIFMT_NB_NF is default */
4498 break;
4499 }
4500
4501 /*
4502 * check "[prefix]bitclock-master"
4503 * check "[prefix]frame-master"
4504 * SND_SOC_DAIFMT_MASTER_MASK area
4505 */
4506 snprintf(prop, sizeof(prop), "%sbitclock-master", prefix);
4507 bit = !!of_get_property(np, prop, NULL);
4508
4509 snprintf(prop, sizeof(prop), "%sframe-master", prefix);
4510 frame = !!of_get_property(np, prop, NULL);
4511
4512 switch ((bit << 4) + frame) {
4513 case 0x11:
4514 format |= SND_SOC_DAIFMT_CBM_CFM;
4515 break;
4516 case 0x10:
4517 format |= SND_SOC_DAIFMT_CBM_CFS;
4518 break;
4519 case 0x01:
4520 format |= SND_SOC_DAIFMT_CBS_CFM;
4521 break;
4522 default:
4523 format |= SND_SOC_DAIFMT_CBS_CFS;
4524 break;
4525 }
4526
4527 return format;
4528}
4529EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt);
4530
cb470087
KM		 4531int snd_soc_of_get_dai_name(struct device_node *of_node,
4532 const char **dai_name)
4533{
4534 struct snd_soc_component *pos;
4535 struct of_phandle_args args;
4536 int ret;
4537
4538 ret = of_parse_phandle_with_args(of_node, "sound-dai",
4539 "#sound-dai-cells", 0, &args);
4540 if (ret)
4541 return ret;
4542
4543 ret = -EPROBE_DEFER;
4544
4545 mutex_lock(&client_mutex);
4546 list_for_each_entry(pos, &component_list, list) {
4547 if (pos->dev->of_node != args.np)
4548 continue;
4549
6833c452
KM		 4550 if (pos->driver->of_xlate_dai_name) {
4551 ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name);
4552 } else {
4553 int id = -1;
4554
4555 switch (args.args_count) {
4556 case 0:
4557 id = 0; /* same as dai_drv[0] */
4558 break;
4559 case 1:
4560 id = args.args[0];
4561 break;
4562 default:
4563 /* not supported */
4564 break;
4565 }
4566
4567 if (id < 0 || id >= pos->num_dai) {
4568 ret = -EINVAL;
e41975ed 4569 break;
6833c452 4570 }
e41975ed
XL		 4571
4572 ret = 0;
4573
4574 *dai_name = pos->dai_drv[id].name;
4575 if (!*dai_name)
4576 *dai_name = pos->name;
cb470087
KM		 4577 }
4578
cb470087
KM		 4579 break;
4580 }
4581 mutex_unlock(&client_mutex);
4582
4583 of_node_put(args.np);
4584
4585 return ret;
4586}
4587EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name);
4588
c9b3a40f 4589static int __init snd_soc_init(void)
db2a4165 4590{
384c89e2 4591#ifdef CONFIG_DEBUG_FS
8a9dab1a
MB		 4592 snd_soc_debugfs_root = debugfs_create_dir("asoc", NULL);
4593 if (IS_ERR(snd_soc_debugfs_root) || !snd_soc_debugfs_root) {
0837fc62 4594 pr_warn("ASoC: Failed to create debugfs directory\n");
8a9dab1a 4595 snd_soc_debugfs_root = NULL;
384c89e2 4596 }
c3c5a19a 4597
8a9dab1a 4598 if (!debugfs_create_file("codecs", 0444, snd_soc_debugfs_root, NULL,
c3c5a19a
MB		 4599 &codec_list_fops))
4600 pr_warn("ASoC: Failed to create CODEC list debugfs file\n");
4601
8a9dab1a 4602 if (!debugfs_create_file("dais", 0444, snd_soc_debugfs_root, NULL,
f3208780
MB		 4603 &dai_list_fops))
4604 pr_warn("ASoC: Failed to create DAI list debugfs file\n");
19c7ac27 4605
8a9dab1a 4606 if (!debugfs_create_file("platforms", 0444, snd_soc_debugfs_root, NULL,
19c7ac27
MB		 4607 &platform_list_fops))
4608 pr_warn("ASoC: Failed to create platform list debugfs file\n");
384c89e2
MB		 4609#endif
4610
fb257897
MB		 4611 snd_soc_util_init();
4612
db2a4165
FM		 4613 return platform_driver_register(&soc_driver);
4614}
4abe8e16 4615module_init(snd_soc_init);
db2a4165 4616
7d8c16a6 4617static void __exit snd_soc_exit(void)
db2a4165 4618{
fb257897
MB		 4619 snd_soc_util_exit();
4620
384c89e2 4621#ifdef CONFIG_DEBUG_FS
8a9dab1a 4622 debugfs_remove_recursive(snd_soc_debugfs_root);
384c89e2 4623#endif
3ff3f64b 4624 platform_driver_unregister(&soc_driver);
db2a4165 4625}
db2a4165
FM		 4626module_exit(snd_soc_exit);
4627
4628/* Module information */
d331124d 4629MODULE_AUTHOR("Liam Girdwood, lrg@slimlogic.co.uk");
db2a4165
FM		 4630MODULE_DESCRIPTION("ALSA SoC Core");
4631MODULE_LICENSE("GPL");
8b45a209 4632MODULE_ALIAS("platform:soc-audio");
Linux kernel - Deliverables
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