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1536a968 KM |
1 | /* |
2 | * Renesas R-Car SRU/SCU/SSIU/SSI support | |
3 | * | |
4 | * Copyright (C) 2013 Renesas Solutions Corp. | |
5 | * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> | |
6 | * | |
7 | * Based on fsi.c | |
8 | * Kuninori Morimoto <morimoto.kuninori@renesas.com> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | */ | |
14 | ||
15 | /* | |
16 | * Renesas R-Car sound device structure | |
17 | * | |
18 | * Gen1 | |
19 | * | |
20 | * SRU : Sound Routing Unit | |
21 | * - SRC : Sampling Rate Converter | |
22 | * - CMD | |
23 | * - CTU : Channel Count Conversion Unit | |
24 | * - MIX : Mixer | |
25 | * - DVC : Digital Volume and Mute Function | |
26 | * - SSI : Serial Sound Interface | |
27 | * | |
28 | * Gen2 | |
29 | * | |
30 | * SCU : Sampling Rate Converter Unit | |
31 | * - SRC : Sampling Rate Converter | |
32 | * - CMD | |
33 | * - CTU : Channel Count Conversion Unit | |
34 | * - MIX : Mixer | |
35 | * - DVC : Digital Volume and Mute Function | |
36 | * SSIU : Serial Sound Interface Unit | |
37 | * - SSI : Serial Sound Interface | |
38 | */ | |
39 | ||
40 | /* | |
41 | * driver data Image | |
42 | * | |
43 | * rsnd_priv | |
44 | * | | |
45 | * | ** this depends on Gen1/Gen2 | |
46 | * | | |
47 | * +- gen | |
48 | * | | |
49 | * | ** these depend on data path | |
50 | * | ** gen and platform data control it | |
51 | * | | |
52 | * +- rdai[0] | |
53 | * | | sru ssiu ssi | |
54 | * | +- playback -> [mod] -> [mod] -> [mod] -> ... | |
55 | * | | | |
56 | * | | sru ssiu ssi | |
57 | * | +- capture -> [mod] -> [mod] -> [mod] -> ... | |
58 | * | | |
59 | * +- rdai[1] | |
60 | * | | sru ssiu ssi | |
61 | * | +- playback -> [mod] -> [mod] -> [mod] -> ... | |
62 | * | | | |
63 | * | | sru ssiu ssi | |
64 | * | +- capture -> [mod] -> [mod] -> [mod] -> ... | |
65 | * ... | |
66 | * | | |
67 | * | ** these control ssi | |
68 | * | | |
69 | * +- ssi | |
70 | * | | | |
71 | * | +- ssi[0] | |
72 | * | +- ssi[1] | |
73 | * | +- ssi[2] | |
74 | * | ... | |
75 | * | | |
76 | * | ** these control scu | |
77 | * | | |
78 | * +- scu | |
79 | * | | |
80 | * +- scu[0] | |
81 | * +- scu[1] | |
82 | * +- scu[2] | |
83 | * ... | |
84 | * | |
85 | * | |
86 | * for_each_rsnd_dai(xx, priv, xx) | |
87 | * rdai[0] => rdai[1] => rdai[2] => ... | |
88 | * | |
89 | * for_each_rsnd_mod(xx, rdai, xx) | |
90 | * [mod] => [mod] => [mod] => ... | |
91 | * | |
92 | * rsnd_dai_call(xxx, fn ) | |
93 | * [mod]->fn() -> [mod]->fn() -> [mod]->fn()... | |
94 | * | |
95 | */ | |
96 | #include <linux/pm_runtime.h> | |
97 | #include "rsnd.h" | |
98 | ||
99 | #define RSND_RATES SNDRV_PCM_RATE_8000_96000 | |
100 | #define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) | |
101 | ||
102 | /* | |
103 | * rsnd_platform functions | |
104 | */ | |
105 | #define rsnd_platform_call(priv, dai, func, param...) \ | |
106 | (!(priv->info->func) ? -ENODEV : \ | |
107 | priv->info->func(param)) | |
108 | ||
109 | ||
cdaa3cdf KM |
110 | /* |
111 | * rsnd_mod functions | |
112 | */ | |
113 | char *rsnd_mod_name(struct rsnd_mod *mod) | |
114 | { | |
115 | if (!mod || !mod->ops) | |
116 | return "unknown"; | |
117 | ||
118 | return mod->ops->name; | |
119 | } | |
120 | ||
121 | void rsnd_mod_init(struct rsnd_priv *priv, | |
122 | struct rsnd_mod *mod, | |
123 | struct rsnd_mod_ops *ops, | |
124 | int id) | |
125 | { | |
126 | mod->priv = priv; | |
127 | mod->id = id; | |
128 | mod->ops = ops; | |
129 | INIT_LIST_HEAD(&mod->list); | |
130 | } | |
131 | ||
1536a968 KM |
132 | /* |
133 | * rsnd_dai functions | |
134 | */ | |
cdaa3cdf KM |
135 | #define rsnd_dai_call(rdai, io, fn) \ |
136 | ({ \ | |
137 | struct rsnd_mod *mod, *n; \ | |
138 | int ret = 0; \ | |
139 | for_each_rsnd_mod(mod, n, io) { \ | |
140 | ret = rsnd_mod_call(mod, fn, rdai, io); \ | |
141 | if (ret < 0) \ | |
142 | break; \ | |
143 | } \ | |
144 | ret; \ | |
145 | }) | |
146 | ||
147 | int rsnd_dai_connect(struct rsnd_dai *rdai, | |
148 | struct rsnd_mod *mod, | |
149 | struct rsnd_dai_stream *io) | |
150 | { | |
151 | struct rsnd_priv *priv = rsnd_mod_to_priv(mod); | |
152 | struct device *dev = rsnd_priv_to_dev(priv); | |
153 | ||
154 | if (!mod) { | |
155 | dev_err(dev, "NULL mod\n"); | |
156 | return -EIO; | |
157 | } | |
158 | ||
159 | if (!list_empty(&mod->list)) { | |
160 | dev_err(dev, "%s%d is not empty\n", | |
161 | rsnd_mod_name(mod), | |
162 | rsnd_mod_id(mod)); | |
163 | return -EIO; | |
164 | } | |
165 | ||
166 | list_add_tail(&mod->list, &io->head); | |
167 | ||
168 | return 0; | |
169 | } | |
170 | ||
171 | int rsnd_dai_disconnect(struct rsnd_mod *mod) | |
172 | { | |
173 | list_del_init(&mod->list); | |
174 | ||
175 | return 0; | |
176 | } | |
177 | ||
1536a968 KM |
178 | struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id) |
179 | { | |
180 | return priv->rdai + id; | |
181 | } | |
182 | ||
183 | static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai) | |
184 | { | |
185 | struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); | |
186 | ||
187 | return rsnd_dai_get(priv, dai->id); | |
188 | } | |
189 | ||
190 | int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io) | |
191 | { | |
192 | return &rdai->playback == io; | |
193 | } | |
194 | ||
195 | /* | |
196 | * rsnd_soc_dai functions | |
197 | */ | |
198 | int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional) | |
199 | { | |
200 | struct snd_pcm_substream *substream = io->substream; | |
201 | struct snd_pcm_runtime *runtime = substream->runtime; | |
202 | int pos = io->byte_pos + additional; | |
203 | ||
204 | pos %= (runtime->periods * io->byte_per_period); | |
205 | ||
206 | return pos; | |
207 | } | |
208 | ||
209 | void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte) | |
210 | { | |
211 | io->byte_pos += byte; | |
212 | ||
213 | if (io->byte_pos >= io->next_period_byte) { | |
214 | struct snd_pcm_substream *substream = io->substream; | |
215 | struct snd_pcm_runtime *runtime = substream->runtime; | |
216 | ||
217 | io->period_pos++; | |
218 | io->next_period_byte += io->byte_per_period; | |
219 | ||
220 | if (io->period_pos >= runtime->periods) { | |
221 | io->byte_pos = 0; | |
222 | io->period_pos = 0; | |
223 | io->next_period_byte = io->byte_per_period; | |
224 | } | |
225 | ||
226 | snd_pcm_period_elapsed(substream); | |
227 | } | |
228 | } | |
229 | ||
230 | static int rsnd_dai_stream_init(struct rsnd_dai_stream *io, | |
231 | struct snd_pcm_substream *substream) | |
232 | { | |
233 | struct snd_pcm_runtime *runtime = substream->runtime; | |
234 | ||
235 | if (!list_empty(&io->head)) | |
236 | return -EIO; | |
237 | ||
238 | INIT_LIST_HEAD(&io->head); | |
239 | io->substream = substream; | |
240 | io->byte_pos = 0; | |
241 | io->period_pos = 0; | |
242 | io->byte_per_period = runtime->period_size * | |
243 | runtime->channels * | |
244 | samples_to_bytes(runtime, 1); | |
245 | io->next_period_byte = io->byte_per_period; | |
246 | ||
247 | return 0; | |
248 | } | |
249 | ||
250 | static | |
251 | struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream) | |
252 | { | |
253 | struct snd_soc_pcm_runtime *rtd = substream->private_data; | |
254 | ||
255 | return rtd->cpu_dai; | |
256 | } | |
257 | ||
258 | static | |
259 | struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai, | |
260 | struct snd_pcm_substream *substream) | |
261 | { | |
262 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
263 | return &rdai->playback; | |
264 | else | |
265 | return &rdai->capture; | |
266 | } | |
267 | ||
268 | static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd, | |
269 | struct snd_soc_dai *dai) | |
270 | { | |
271 | struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); | |
272 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
273 | struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); | |
274 | struct rsnd_dai_platform_info *info = rsnd_dai_get_platform_info(rdai); | |
275 | int ssi_id = rsnd_dai_is_play(rdai, io) ? info->ssi_id_playback : | |
276 | info->ssi_id_capture; | |
277 | int ret; | |
278 | unsigned long flags; | |
279 | ||
280 | rsnd_lock(priv, flags); | |
281 | ||
282 | switch (cmd) { | |
283 | case SNDRV_PCM_TRIGGER_START: | |
284 | ret = rsnd_dai_stream_init(io, substream); | |
285 | if (ret < 0) | |
286 | goto dai_trigger_end; | |
287 | ||
288 | ret = rsnd_platform_call(priv, dai, start, ssi_id); | |
289 | if (ret < 0) | |
290 | goto dai_trigger_end; | |
291 | ||
cdaa3cdf KM |
292 | ret = rsnd_dai_call(rdai, io, init); |
293 | if (ret < 0) | |
294 | goto dai_trigger_end; | |
295 | ||
296 | ret = rsnd_dai_call(rdai, io, start); | |
297 | if (ret < 0) | |
298 | goto dai_trigger_end; | |
1536a968 KM |
299 | break; |
300 | case SNDRV_PCM_TRIGGER_STOP: | |
cdaa3cdf KM |
301 | ret = rsnd_dai_call(rdai, io, stop); |
302 | if (ret < 0) | |
303 | goto dai_trigger_end; | |
304 | ||
305 | ret = rsnd_dai_call(rdai, io, quit); | |
306 | if (ret < 0) | |
307 | goto dai_trigger_end; | |
308 | ||
1536a968 KM |
309 | ret = rsnd_platform_call(priv, dai, stop, ssi_id); |
310 | if (ret < 0) | |
311 | goto dai_trigger_end; | |
312 | ||
313 | break; | |
314 | default: | |
315 | ret = -EINVAL; | |
316 | } | |
317 | ||
318 | dai_trigger_end: | |
319 | rsnd_unlock(priv, flags); | |
320 | ||
321 | return ret; | |
322 | } | |
323 | ||
324 | static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) | |
325 | { | |
326 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
327 | ||
328 | /* set master/slave audio interface */ | |
329 | switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { | |
330 | case SND_SOC_DAIFMT_CBM_CFM: | |
331 | rdai->clk_master = 1; | |
332 | break; | |
333 | case SND_SOC_DAIFMT_CBS_CFS: | |
334 | rdai->clk_master = 0; | |
335 | break; | |
336 | default: | |
337 | return -EINVAL; | |
338 | } | |
339 | ||
340 | /* set clock inversion */ | |
341 | switch (fmt & SND_SOC_DAIFMT_INV_MASK) { | |
342 | case SND_SOC_DAIFMT_NB_IF: | |
343 | rdai->bit_clk_inv = 0; | |
344 | rdai->frm_clk_inv = 1; | |
345 | break; | |
346 | case SND_SOC_DAIFMT_IB_NF: | |
347 | rdai->bit_clk_inv = 1; | |
348 | rdai->frm_clk_inv = 0; | |
349 | break; | |
350 | case SND_SOC_DAIFMT_IB_IF: | |
351 | rdai->bit_clk_inv = 1; | |
352 | rdai->frm_clk_inv = 1; | |
353 | break; | |
354 | case SND_SOC_DAIFMT_NB_NF: | |
355 | default: | |
356 | rdai->bit_clk_inv = 0; | |
357 | rdai->frm_clk_inv = 0; | |
358 | break; | |
359 | } | |
360 | ||
361 | /* set format */ | |
362 | switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { | |
363 | case SND_SOC_DAIFMT_I2S: | |
364 | rdai->sys_delay = 0; | |
365 | rdai->data_alignment = 0; | |
366 | break; | |
367 | case SND_SOC_DAIFMT_LEFT_J: | |
368 | rdai->sys_delay = 1; | |
369 | rdai->data_alignment = 0; | |
370 | break; | |
371 | case SND_SOC_DAIFMT_RIGHT_J: | |
372 | rdai->sys_delay = 1; | |
373 | rdai->data_alignment = 1; | |
374 | break; | |
375 | } | |
376 | ||
377 | return 0; | |
378 | } | |
379 | ||
380 | static const struct snd_soc_dai_ops rsnd_soc_dai_ops = { | |
381 | .trigger = rsnd_soc_dai_trigger, | |
382 | .set_fmt = rsnd_soc_dai_set_fmt, | |
383 | }; | |
384 | ||
385 | static int rsnd_dai_probe(struct platform_device *pdev, | |
386 | struct rcar_snd_info *info, | |
387 | struct rsnd_priv *priv) | |
388 | { | |
389 | struct snd_soc_dai_driver *drv; | |
390 | struct rsnd_dai *rdai; | |
391 | struct device *dev = rsnd_priv_to_dev(priv); | |
392 | struct rsnd_dai_platform_info *dai_info; | |
393 | int dai_nr = info->dai_info_nr; | |
394 | int i, pid, cid; | |
395 | ||
396 | drv = devm_kzalloc(dev, sizeof(*drv) * dai_nr, GFP_KERNEL); | |
397 | rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL); | |
398 | if (!drv || !rdai) { | |
399 | dev_err(dev, "dai allocate failed\n"); | |
400 | return -ENOMEM; | |
401 | } | |
402 | ||
403 | for (i = 0; i < dai_nr; i++) { | |
404 | dai_info = &info->dai_info[i]; | |
405 | ||
406 | pid = dai_info->ssi_id_playback; | |
407 | cid = dai_info->ssi_id_capture; | |
408 | ||
409 | /* | |
410 | * init rsnd_dai | |
411 | */ | |
412 | INIT_LIST_HEAD(&rdai[i].playback.head); | |
413 | INIT_LIST_HEAD(&rdai[i].capture.head); | |
414 | ||
415 | rdai[i].info = dai_info; | |
416 | ||
417 | snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i); | |
418 | ||
419 | /* | |
420 | * init snd_soc_dai_driver | |
421 | */ | |
422 | drv[i].name = rdai[i].name; | |
423 | drv[i].ops = &rsnd_soc_dai_ops; | |
424 | if (pid >= 0) { | |
425 | drv[i].playback.rates = RSND_RATES; | |
426 | drv[i].playback.formats = RSND_FMTS; | |
427 | drv[i].playback.channels_min = 2; | |
428 | drv[i].playback.channels_max = 2; | |
429 | } | |
430 | if (cid >= 0) { | |
431 | drv[i].capture.rates = RSND_RATES; | |
432 | drv[i].capture.formats = RSND_FMTS; | |
433 | drv[i].capture.channels_min = 2; | |
434 | drv[i].capture.channels_max = 2; | |
435 | } | |
436 | ||
437 | dev_dbg(dev, "%s (%d, %d) probed", rdai[i].name, pid, cid); | |
438 | } | |
439 | ||
440 | priv->dai_nr = dai_nr; | |
441 | priv->daidrv = drv; | |
442 | priv->rdai = rdai; | |
443 | ||
444 | return 0; | |
445 | } | |
446 | ||
447 | static void rsnd_dai_remove(struct platform_device *pdev, | |
448 | struct rsnd_priv *priv) | |
449 | { | |
450 | } | |
451 | ||
452 | /* | |
453 | * pcm ops | |
454 | */ | |
455 | static struct snd_pcm_hardware rsnd_pcm_hardware = { | |
456 | .info = SNDRV_PCM_INFO_INTERLEAVED | | |
457 | SNDRV_PCM_INFO_MMAP | | |
458 | SNDRV_PCM_INFO_MMAP_VALID | | |
459 | SNDRV_PCM_INFO_PAUSE, | |
460 | .formats = RSND_FMTS, | |
461 | .rates = RSND_RATES, | |
462 | .rate_min = 8000, | |
463 | .rate_max = 192000, | |
464 | .channels_min = 2, | |
465 | .channels_max = 2, | |
466 | .buffer_bytes_max = 64 * 1024, | |
467 | .period_bytes_min = 32, | |
468 | .period_bytes_max = 8192, | |
469 | .periods_min = 1, | |
470 | .periods_max = 32, | |
471 | .fifo_size = 256, | |
472 | }; | |
473 | ||
474 | static int rsnd_pcm_open(struct snd_pcm_substream *substream) | |
475 | { | |
476 | struct snd_pcm_runtime *runtime = substream->runtime; | |
477 | int ret = 0; | |
478 | ||
479 | snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware); | |
480 | ||
481 | ret = snd_pcm_hw_constraint_integer(runtime, | |
482 | SNDRV_PCM_HW_PARAM_PERIODS); | |
483 | ||
484 | return ret; | |
485 | } | |
486 | ||
487 | static int rsnd_hw_params(struct snd_pcm_substream *substream, | |
488 | struct snd_pcm_hw_params *hw_params) | |
489 | { | |
490 | return snd_pcm_lib_malloc_pages(substream, | |
491 | params_buffer_bytes(hw_params)); | |
492 | } | |
493 | ||
494 | static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream) | |
495 | { | |
496 | struct snd_pcm_runtime *runtime = substream->runtime; | |
497 | struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); | |
498 | struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); | |
499 | struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); | |
500 | ||
501 | return bytes_to_frames(runtime, io->byte_pos); | |
502 | } | |
503 | ||
504 | static struct snd_pcm_ops rsnd_pcm_ops = { | |
505 | .open = rsnd_pcm_open, | |
506 | .ioctl = snd_pcm_lib_ioctl, | |
507 | .hw_params = rsnd_hw_params, | |
508 | .hw_free = snd_pcm_lib_free_pages, | |
509 | .pointer = rsnd_pointer, | |
510 | }; | |
511 | ||
512 | /* | |
513 | * snd_soc_platform | |
514 | */ | |
515 | ||
516 | #define PREALLOC_BUFFER (32 * 1024) | |
517 | #define PREALLOC_BUFFER_MAX (32 * 1024) | |
518 | ||
519 | static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd) | |
520 | { | |
521 | return snd_pcm_lib_preallocate_pages_for_all( | |
522 | rtd->pcm, | |
523 | SNDRV_DMA_TYPE_DEV, | |
524 | rtd->card->snd_card->dev, | |
525 | PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); | |
526 | } | |
527 | ||
528 | static void rsnd_pcm_free(struct snd_pcm *pcm) | |
529 | { | |
530 | snd_pcm_lib_preallocate_free_for_all(pcm); | |
531 | } | |
532 | ||
533 | static struct snd_soc_platform_driver rsnd_soc_platform = { | |
534 | .ops = &rsnd_pcm_ops, | |
535 | .pcm_new = rsnd_pcm_new, | |
536 | .pcm_free = rsnd_pcm_free, | |
537 | }; | |
538 | ||
539 | static const struct snd_soc_component_driver rsnd_soc_component = { | |
540 | .name = "rsnd", | |
541 | }; | |
542 | ||
543 | /* | |
544 | * rsnd probe | |
545 | */ | |
546 | static int rsnd_probe(struct platform_device *pdev) | |
547 | { | |
548 | struct rcar_snd_info *info; | |
549 | struct rsnd_priv *priv; | |
550 | struct device *dev = &pdev->dev; | |
551 | int ret; | |
552 | ||
553 | info = pdev->dev.platform_data; | |
554 | if (!info) { | |
555 | dev_err(dev, "driver needs R-Car sound information\n"); | |
556 | return -ENODEV; | |
557 | } | |
558 | ||
559 | /* | |
560 | * init priv data | |
561 | */ | |
562 | priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); | |
563 | if (!priv) { | |
564 | dev_err(dev, "priv allocate failed\n"); | |
565 | return -ENODEV; | |
566 | } | |
567 | ||
568 | priv->dev = dev; | |
569 | priv->info = info; | |
570 | spin_lock_init(&priv->lock); | |
571 | ||
572 | /* | |
573 | * init each module | |
574 | */ | |
575 | ret = rsnd_dai_probe(pdev, info, priv); | |
576 | if (ret < 0) | |
577 | return ret; | |
578 | ||
579 | /* | |
580 | * asoc register | |
581 | */ | |
582 | ret = snd_soc_register_platform(dev, &rsnd_soc_platform); | |
583 | if (ret < 0) { | |
584 | dev_err(dev, "cannot snd soc register\n"); | |
585 | return ret; | |
586 | } | |
587 | ||
588 | ret = snd_soc_register_component(dev, &rsnd_soc_component, | |
589 | priv->daidrv, rsnd_dai_nr(priv)); | |
590 | if (ret < 0) { | |
591 | dev_err(dev, "cannot snd dai register\n"); | |
592 | goto exit_snd_soc; | |
593 | } | |
594 | ||
595 | dev_set_drvdata(dev, priv); | |
596 | ||
597 | pm_runtime_enable(dev); | |
598 | ||
599 | dev_info(dev, "probed\n"); | |
600 | return ret; | |
601 | ||
602 | exit_snd_soc: | |
603 | snd_soc_unregister_platform(dev); | |
604 | ||
605 | return ret; | |
606 | } | |
607 | ||
608 | static int rsnd_remove(struct platform_device *pdev) | |
609 | { | |
610 | struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev); | |
611 | ||
612 | pm_runtime_disable(&pdev->dev); | |
613 | ||
614 | /* | |
615 | * remove each module | |
616 | */ | |
617 | rsnd_dai_remove(pdev, priv); | |
618 | ||
619 | return 0; | |
620 | } | |
621 | ||
622 | static struct platform_driver rsnd_driver = { | |
623 | .driver = { | |
624 | .name = "rcar_sound", | |
625 | }, | |
626 | .probe = rsnd_probe, | |
627 | .remove = rsnd_remove, | |
628 | }; | |
629 | module_platform_driver(rsnd_driver); | |
630 | ||
631 | MODULE_LICENSE("GPL"); | |
632 | MODULE_DESCRIPTION("Renesas R-Car audio driver"); | |
633 | MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); | |
634 | MODULE_ALIAS("platform:rcar-pcm-audio"); |