projects / deliverable / linux.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
ASoC: rsnd: remove rsnd_dai_get_platform_info() macro
[deliverable/linux.git] / sound / soc / sh / rcar / core.c
CommitLineData
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 * |
ba9c949f 76 * | ** these control src
1536a968 77 * |
ba9c949f 78 * +- src
1536a968 79 * |
ba9c949f
KM		 80 * +- src[0]
81 * +- src[1]
82 * +- src[2]
1536a968
KM		 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>
9ade09d6 97#include <linux/shdma-base.h>
1536a968
KM		 98#include "rsnd.h"
99
100#define RSND_RATES SNDRV_PCM_RATE_8000_96000
101#define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
102
90e8e50f
KM		 103static struct rsnd_of_data rsnd_of_data_gen1 = {
104 .flags = RSND_GEN1,
105};
106
107static struct rsnd_of_data rsnd_of_data_gen2 = {
108 .flags = RSND_GEN2,
109};
110
111static struct of_device_id rsnd_of_match[] = {
112 { .compatible = "renesas,rcar_sound-gen1", .data = &rsnd_of_data_gen1 },
113 { .compatible = "renesas,rcar_sound-gen2", .data = &rsnd_of_data_gen2 },
114 {},
115};
116MODULE_DEVICE_TABLE(of, rsnd_of_match);
117
1536a968
KM		 118/*
119 * rsnd_platform functions
120 */
121#define rsnd_platform_call(priv, dai, func, param...) \
740ad6c3 122 (!(priv->info->func) ? 0 : \
1536a968
KM		 123 priv->info->func(param))
124
389933d9
KM		 125#define rsnd_is_enable_path(io, name) \
126 ((io)->info ? (io)->info->name : NULL)
127#define rsnd_info_id(priv, io, name) \
128 ((io)->info->name - priv->info->name##_info)
129
cdaa3cdf
KM		 130/*
131 * rsnd_mod functions
132 */
133char *rsnd_mod_name(struct rsnd_mod *mod)
134{
135 if (!mod || !mod->ops)
136 return "unknown";
137
138 return mod->ops->name;
139}
140
d9288d0b
KM		 141char *rsnd_mod_dma_name(struct rsnd_mod *mod)
142{
143 if (!mod || !mod->ops)
144 return "unknown";
145
146 if (!mod->ops->dma_name)
147 return mod->ops->name;
148
149 return mod->ops->dma_name(mod);
150}
151
cdaa3cdf
KM		 152void rsnd_mod_init(struct rsnd_priv *priv,
153 struct rsnd_mod *mod,
154 struct rsnd_mod_ops *ops,
85642952 155 struct clk *clk,
a126021d 156 enum rsnd_mod_type type,
cdaa3cdf
KM		 157 int id)
158{
159 mod->priv = priv;
160 mod->id = id;
161 mod->ops = ops;
a126021d 162 mod->type = type;
85642952 163 mod->clk = clk;
cdaa3cdf
KM		 164}
165
0a4d94c0
KM		 166/*
167 * rsnd_dma functions
168 */
0a4d94c0
KM		 169void rsnd_dma_stop(struct rsnd_dma *dma)
170{
0a4d94c0
KM		 171 dmaengine_terminate_all(dma->chan);
172}
173
174static void rsnd_dma_complete(void *data)
175{
176 struct rsnd_dma *dma = (struct rsnd_dma *)data;
4686a0ad 177 struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
4686a0ad 178 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
0a4d94c0 179
4686a0ad
KM		 180 /*
181 * Renesas sound Gen1 needs 1 DMAC,
182 * Gen2 needs 2 DMAC.
183 * In Gen2 case, it are Audio-DMAC, and Audio-DMAC-peri-peri.
184 * But, Audio-DMAC-peri-peri doesn't have interrupt,
185 * and this driver is assuming that here.
186 *
187 * If Audio-DMAC-peri-peri has interrpt,
188 * rsnd_dai_pointer_update() will be called twice,
189 * ant it will breaks io->byte_pos
190 */
836b31fe
KM		 191
192 rsnd_dai_pointer_update(io, io->byte_per_period);
0a4d94c0
KM		 193}
194
ccd01559 195void rsnd_dma_start(struct rsnd_dma *dma)
0a4d94c0 196{
4686a0ad
KM		 197 struct rsnd_mod *mod = rsnd_dma_to_mod(dma);
198 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
199 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
ccd01559 200 struct snd_pcm_substream *substream = io->substream;
0a4d94c0
KM		 201 struct device *dev = rsnd_priv_to_dev(priv);
202 struct dma_async_tx_descriptor *desc;
0a4d94c0 203
ccd01559 204 desc = dmaengine_prep_dma_cyclic(dma->chan,
34037100 205 (dma->addr) ? dma->addr :
ccd01559
KM		 206 substream->runtime->dma_addr,
207 snd_pcm_lib_buffer_bytes(substream),
208 snd_pcm_lib_period_bytes(substream),
209 dma->dir,
210 DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
0a4d94c0 211
ccd01559
KM		 212 if (!desc) {
213 dev_err(dev, "dmaengine_prep_slave_sg() fail\n");
214 return;
0a4d94c0 215 }
0a4d94c0 216
ccd01559
KM		 217 desc->callback = rsnd_dma_complete;
218 desc->callback_param = dma;
219
220 if (dmaengine_submit(desc) < 0) {
221 dev_err(dev, "dmaengine_submit() fail\n");
222 return;
223 }
f5cab3b8 224
ccd01559 225 dma_async_issue_pending(dma->chan);
f5cab3b8
KM		 226}
227
0a4d94c0
KM		 228int rsnd_dma_available(struct rsnd_dma *dma)
229{
230 return !!dma->chan;
231}
232
199e7688
KM		 233#define DMA_NAME_SIZE 16
234#define MOD_MAX 4 /* MEM/SSI/SRC/DVC */
235static int _rsnd_dma_of_name(char *dma_name, struct rsnd_mod *mod)
236{
237 if (mod)
238 return snprintf(dma_name, DMA_NAME_SIZE / 2, "%s%d",
d9288d0b 239 rsnd_mod_dma_name(mod), rsnd_mod_id(mod));
199e7688
KM		 240 else
241 return snprintf(dma_name, DMA_NAME_SIZE / 2, "mem");
242
243}
244
37523034
KM		 245static void rsnd_dma_of_name(struct rsnd_mod *mod_from,
246 struct rsnd_mod *mod_to,
247 char *dma_name)
248{
249 int index = 0;
250
251 index = _rsnd_dma_of_name(dma_name + index, mod_from);
252 *(dma_name + index++) = '_';
253 index = _rsnd_dma_of_name(dma_name + index, mod_to);
254}
255
256static void rsnd_dma_of_path(struct rsnd_dma *dma,
257 int is_play,
258 struct rsnd_mod **mod_from,
259 struct rsnd_mod **mod_to)
199e7688
KM		 260{
261 struct rsnd_mod *this = rsnd_dma_to_mod(dma);
262 struct rsnd_dai_stream *io = rsnd_mod_to_io(this);
263 struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
264 struct rsnd_mod *src = rsnd_io_to_mod_src(io);
265 struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
266 struct rsnd_mod *mod[MOD_MAX];
199e7688
KM		 267 int i, index;
268
269
270 for (i = 0; i < MOD_MAX; i++)
271 mod[i] = NULL;
272
273 /*
274 * in play case...
275 *
276 * src -> dst
277 *
278 * mem -> SSI
279 * mem -> SRC -> SSI
280 * mem -> SRC -> DVC -> SSI
281 */
282 mod[0] = NULL; /* for "mem" */
283 index = 1;
284 for (i = 1; i < MOD_MAX; i++) {
285 if (!src) {
286 mod[i] = ssi;
199e7688
KM		 287 } else if (!dvc) {
288 mod[i] = src;
289 src = NULL;
290 } else {
34cb6123
KM		 291 if ((!is_play) && (this == src))
292 this = dvc;
293
294 mod[i] = (is_play) ? src : dvc;
295 i++;
296 mod[i] = (is_play) ? dvc : src;
297 src = NULL;
199e7688
KM		 298 dvc = NULL;
299 }
300
301 if (mod[i] == this)
302 index = i;
c08c3b08
KM		 303
304 if (mod[i] == ssi)
305 break;
199e7688
KM		 306 }
307
308 if (is_play) {
37523034
KM		 309 *mod_from = mod[index - 1];
310 *mod_to = mod[index];
199e7688 311 } else {
37523034
KM		 312 *mod_from = mod[index];
313 *mod_to = mod[index - 1];
199e7688 314 }
199e7688
KM		 315}
316
0a4d94c0 317int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
4686a0ad 318 int is_play, int id)
0a4d94c0
KM		 319{
320 struct device *dev = rsnd_priv_to_dev(priv);
9ade09d6 321 struct dma_slave_config cfg;
37523034
KM		 322 struct rsnd_mod *mod_from;
323 struct rsnd_mod *mod_to;
199e7688 324 char dma_name[DMA_NAME_SIZE];
0a4d94c0 325 dma_cap_mask_t mask;
9ade09d6 326 int ret;
0a4d94c0
KM		 327
328 if (dma->chan) {
329 dev_err(dev, "it already has dma channel\n");
330 return -EIO;
331 }
332
333 dma_cap_zero(mask);
334 dma_cap_set(DMA_SLAVE, mask);
335
37523034
KM		 336 rsnd_dma_of_path(dma, is_play, &mod_from, &mod_to);
337 rsnd_dma_of_name(mod_from, mod_to, dma_name);
338
339 cfg.slave_id = id;
340 cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
341 cfg.src_addr = rsnd_gen_dma_addr(priv, mod_from, is_play, 1);
342 cfg.dst_addr = rsnd_gen_dma_addr(priv, mod_to, is_play, 0);
2bf865ba
KM		 343 cfg.src_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
344 cfg.dst_addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES;
199e7688 345
37523034
KM		 346 dev_dbg(dev, "dma : %s %pad -> %pad\n",
347 dma_name, &cfg.src_addr, &cfg.dst_addr);
199e7688 348
9ade09d6
KM		 349 dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
350 (void *)id, dev,
199e7688 351 dma_name);
0a4d94c0
KM		 352 if (!dma->chan) {
353 dev_err(dev, "can't get dma channel\n");
d3a76823 354 goto rsnd_dma_channel_err;
0a4d94c0
KM		 355 }
356
9ade09d6
KM		 357 ret = dmaengine_slave_config(dma->chan, &cfg);
358 if (ret < 0)
359 goto rsnd_dma_init_err;
360
34037100 361 dma->addr = is_play ? cfg.src_addr : cfg.dst_addr;
cd7bcc60 362 dma->dir = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
0a4d94c0
KM		 363
364 return 0;
9ade09d6
KM		 365
366rsnd_dma_init_err:
367 rsnd_dma_quit(priv, dma);
d3a76823 368rsnd_dma_channel_err:
9ade09d6 369
d3a76823
KM		 370 /*
371 * DMA failed. try to PIO mode
372 * see
97463e19 373 * rsnd_ssi_fallback()
d3a76823
KM		 374 * rsnd_rdai_continuance_probe()
375 */
376 return -EAGAIN;
0a4d94c0
KM		 377}
378
379void rsnd_dma_quit(struct rsnd_priv *priv,
380 struct rsnd_dma *dma)
381{
382 if (dma->chan)
383 dma_release_channel(dma->chan);
384
385 dma->chan = NULL;
386}
387
d7bdbc5d
KM		 388/*
389 * settting function
390 */
391u32 rsnd_get_adinr(struct rsnd_mod *mod)
392{
393 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
394 struct rsnd_dai_stream *io = rsnd_mod_to_io(mod);
395 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
396 struct device *dev = rsnd_priv_to_dev(priv);
397 u32 adinr = runtime->channels;
398
399 switch (runtime->sample_bits) {
400 case 16:
401 adinr |= (8 << 16);
402 break;
403 case 32:
404 adinr |= (0 << 16);
405 break;
406 default:
407 dev_warn(dev, "not supported sample bits\n");
408 return 0;
409 }
410
411 return adinr;
412}
413
1536a968
KM		 414/*
415 * rsnd_dai functions
416 */
68b6af36 417#define __rsnd_mod_call(mod, func, rdai...) \
d870a91e
KM		 418({ \
419 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); \
420 struct device *dev = rsnd_priv_to_dev(priv); \
417f9642
KM		 421 u32 mask = 1 << __rsnd_mod_shift_##func; \
422 u32 call = __rsnd_mod_call_##func << __rsnd_mod_shift_##func; \
423 int ret = 0; \
424 if ((mod->status & mask) == call) { \
425 dev_dbg(dev, "%s[%d] %s\n", \
426 rsnd_mod_name(mod), rsnd_mod_id(mod), #func); \
427 ret = (mod)->ops->func(mod, rdai); \
428 mod->status = (mod->status & ~mask) | (~call & mask); \
429 } \
430 ret; \
d870a91e
KM		 431})
432
68b6af36 433#define rsnd_mod_call(mod, func, rdai...) \
d870a91e
KM		 434 (!(mod) ? -ENODEV : \
435 !((mod)->ops->func) ? 0 : \
68b6af36 436 __rsnd_mod_call(mod, func, rdai))
d870a91e 437
68b6af36 438#define rsnd_dai_call(fn, io, rdai...) \
d870a91e 439({ \
a126021d
KM		 440 struct rsnd_mod *mod; \
441 int ret = 0, i; \
442 for (i = 0; i < RSND_MOD_MAX; i++) { \
443 mod = (io)->mod[i]; \
444 if (!mod) \
445 continue; \
68b6af36 446 ret = rsnd_mod_call(mod, fn, rdai); \
d870a91e
KM		 447 if (ret < 0) \
448 break; \
449 } \
450 ret; \
cdaa3cdf
KM		 451})
452
a126021d 453static int rsnd_dai_connect(struct rsnd_mod *mod,
9bfed6cf 454 struct rsnd_dai_stream *io)
cdaa3cdf 455{
6020779b 456 if (!mod)
cdaa3cdf 457 return -EIO;
cdaa3cdf 458
a126021d 459 if (io->mod[mod->type]) {
6020779b
KM		 460 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
461 struct device *dev = rsnd_priv_to_dev(priv);
462
cdaa3cdf
KM		 463 dev_err(dev, "%s%d is not empty\n",
464 rsnd_mod_name(mod),
465 rsnd_mod_id(mod));
466 return -EIO;
467 }
468
a126021d 469 io->mod[mod->type] = mod;
4686a0ad 470 mod->io = io;
cdaa3cdf
KM		 471
472 return 0;
473}
474
d3a76823
KM		 475static void rsnd_dai_disconnect(struct rsnd_mod *mod,
476 struct rsnd_dai_stream *io)
477{
478 mod->io = NULL;
479 io->mod[mod->type] = NULL;
480}
481
710d0889 482struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
1536a968 483{
ecba9e72 484 if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
2192f81c
KM		 485 return NULL;
486
1536a968
KM		 487 return priv->rdai + id;
488}
489
490static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
491{
492 struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai);
493
710d0889 494 return rsnd_rdai_get(priv, dai->id);
1536a968
KM		 495}
496
497int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io)
498{
499 return &rdai->playback == io;
500}
501
502/*
503 * rsnd_soc_dai functions
504 */
505int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional)
506{
507 struct snd_pcm_substream *substream = io->substream;
508 struct snd_pcm_runtime *runtime = substream->runtime;
509 int pos = io->byte_pos + additional;
510
511 pos %= (runtime->periods * io->byte_per_period);
512
513 return pos;
514}
515
516void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
517{
518 io->byte_pos += byte;
519
520 if (io->byte_pos >= io->next_period_byte) {
521 struct snd_pcm_substream *substream = io->substream;
522 struct snd_pcm_runtime *runtime = substream->runtime;
523
524 io->period_pos++;
525 io->next_period_byte += io->byte_per_period;
526
527 if (io->period_pos >= runtime->periods) {
528 io->byte_pos = 0;
529 io->period_pos = 0;
530 io->next_period_byte = io->byte_per_period;
531 }
532
533 snd_pcm_period_elapsed(substream);
534 }
535}
536
537static int rsnd_dai_stream_init(struct rsnd_dai_stream *io,
538 struct snd_pcm_substream *substream)
539{
540 struct snd_pcm_runtime *runtime = substream->runtime;
541
1536a968
KM		 542 io->substream = substream;
543 io->byte_pos = 0;
544 io->period_pos = 0;
545 io->byte_per_period = runtime->period_size *
546 runtime->channels *
547 samples_to_bytes(runtime, 1);
548 io->next_period_byte = io->byte_per_period;
549
550 return 0;
551}
552
553static
554struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
555{
556 struct snd_soc_pcm_runtime *rtd = substream->private_data;
557
558 return rtd->cpu_dai;
559}
560
561static
562struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
563 struct snd_pcm_substream *substream)
564{
565 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
566 return &rdai->playback;
567 else
568 return &rdai->capture;
569}
570
571static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
572 struct snd_soc_dai *dai)
573{
574 struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai);
575 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
576 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
29e69fd2 577 int ssi_id = rsnd_mod_id(rsnd_io_to_mod_ssi(io));
1536a968
KM		 578 int ret;
579 unsigned long flags;
580
581 rsnd_lock(priv, flags);
582
583 switch (cmd) {
584 case SNDRV_PCM_TRIGGER_START:
585 ret = rsnd_dai_stream_init(io, substream);
586 if (ret < 0)
587 goto dai_trigger_end;
588
589 ret = rsnd_platform_call(priv, dai, start, ssi_id);
590 if (ret < 0)
591 goto dai_trigger_end;
592
68b6af36 593 ret = rsnd_dai_call(init, io, rdai);
cdaa3cdf
KM		 594 if (ret < 0)
595 goto dai_trigger_end;
596
68b6af36 597 ret = rsnd_dai_call(start, io, rdai);
cdaa3cdf
KM		 598 if (ret < 0)
599 goto dai_trigger_end;
1536a968
KM		 600 break;
601 case SNDRV_PCM_TRIGGER_STOP:
68b6af36 602 ret = rsnd_dai_call(stop, io, rdai);
cdaa3cdf
KM		 603 if (ret < 0)
604 goto dai_trigger_end;
605
68b6af36 606 ret = rsnd_dai_call(quit, io, rdai);
cdaa3cdf
KM		 607 if (ret < 0)
608 goto dai_trigger_end;
609
3337744a
KM		 610 ret = rsnd_platform_call(priv, dai, stop, ssi_id);
611 if (ret < 0)
612 goto dai_trigger_end;
1536a968
KM		 613 break;
614 default:
615 ret = -EINVAL;
616 }
617
618dai_trigger_end:
619 rsnd_unlock(priv, flags);
620
621 return ret;
622}
623
624static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
625{
626 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
627
628 /* set master/slave audio interface */
629 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
630 case SND_SOC_DAIFMT_CBM_CFM:
e1508289 631 rdai->clk_master = 0;
1536a968
KM		 632 break;
633 case SND_SOC_DAIFMT_CBS_CFS:
e1508289 634 rdai->clk_master = 1; /* codec is slave, cpu is master */
1536a968
KM		 635 break;
636 default:
637 return -EINVAL;
638 }
639
1536a968
KM		 640 /* set format */
641 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
642 case SND_SOC_DAIFMT_I2S:
643 rdai->sys_delay = 0;
644 rdai->data_alignment = 0;
1a7889ca 645 rdai->frm_clk_inv = 0;
1536a968
KM		 646 break;
647 case SND_SOC_DAIFMT_LEFT_J:
648 rdai->sys_delay = 1;
649 rdai->data_alignment = 0;
1a7889ca 650 rdai->frm_clk_inv = 1;
1536a968
KM		 651 break;
652 case SND_SOC_DAIFMT_RIGHT_J:
653 rdai->sys_delay = 1;
654 rdai->data_alignment = 1;
1a7889ca
KM		 655 rdai->frm_clk_inv = 1;
656 break;
657 }
658
659 /* set clock inversion */
660 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
661 case SND_SOC_DAIFMT_NB_IF:
662 rdai->bit_clk_inv = rdai->bit_clk_inv;
663 rdai->frm_clk_inv = !rdai->frm_clk_inv;
664 break;
665 case SND_SOC_DAIFMT_IB_NF:
666 rdai->bit_clk_inv = !rdai->bit_clk_inv;
667 rdai->frm_clk_inv = rdai->frm_clk_inv;
668 break;
669 case SND_SOC_DAIFMT_IB_IF:
670 rdai->bit_clk_inv = !rdai->bit_clk_inv;
671 rdai->frm_clk_inv = !rdai->frm_clk_inv;
672 break;
673 case SND_SOC_DAIFMT_NB_NF:
674 default:
1536a968
KM		 675 break;
676 }
677
678 return 0;
679}
680
681static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
682 .trigger = rsnd_soc_dai_trigger,
683 .set_fmt = rsnd_soc_dai_set_fmt,
684};
685
739f9502
KM		 686#define rsnd_path_parse(priv, io, type) \
687({ \
688 struct rsnd_mod *mod; \
689 int ret = 0; \
690 int id = -1; \
691 \
692 if (rsnd_is_enable_path(io, type)) { \
693 id = rsnd_info_id(priv, io, type); \
694 if (id >= 0) { \
695 mod = rsnd_##type##_mod_get(priv, id); \
696 ret = rsnd_dai_connect(mod, io); \
697 } \
698 } \
699 ret; \
700})
701
d3a76823
KM		 702#define rsnd_path_break(priv, io, type) \
703{ \
704 struct rsnd_mod *mod; \
705 int id = -1; \
706 \
707 if (rsnd_is_enable_path(io, type)) { \
708 id = rsnd_info_id(priv, io, type); \
709 if (id >= 0) { \
710 mod = rsnd_##type##_mod_get(priv, id); \
711 rsnd_dai_disconnect(mod, io); \
712 } \
713 } \
714}
715
9bfed6cf
KM		 716static int rsnd_path_init(struct rsnd_priv *priv,
717 struct rsnd_dai *rdai,
718 struct rsnd_dai_stream *io)
719{
9bfed6cf 720 int ret;
9bfed6cf
KM		 721
722 /*
723 * Gen1 is created by SRU/SSI, and this SRU is base module of
724 * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
725 *
726 * Easy image is..
727 * Gen1 SRU = Gen2 SCU + SSIU + etc
728 *
729 * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
730 * using fixed path.
9bfed6cf 731 */
9bfed6cf 732
ba9c949f 733 /* SRC */
739f9502
KM		 734 ret = rsnd_path_parse(priv, io, src);
735 if (ret < 0)
736 return ret;
9bfed6cf
KM		 737
738 /* SSI */
739f9502
KM		 739 ret = rsnd_path_parse(priv, io, ssi);
740 if (ret < 0)
741 return ret;
9bfed6cf 742
bff58ea4
KM		 743 /* DVC */
744 ret = rsnd_path_parse(priv, io, dvc);
745 if (ret < 0)
746 return ret;
9bfed6cf
KM		 747
748 return ret;
749}
750
90e8e50f
KM		 751static void rsnd_of_parse_dai(struct platform_device *pdev,
752 const struct rsnd_of_data *of_data,
753 struct rsnd_priv *priv)
754{
755 struct device_node *dai_node, *dai_np;
756 struct device_node *ssi_node, *ssi_np;
757 struct device_node *src_node, *src_np;
34cb6123 758 struct device_node *dvc_node, *dvc_np;
90e8e50f
KM		 759 struct device_node *playback, *capture;
760 struct rsnd_dai_platform_info *dai_info;
761 struct rcar_snd_info *info = rsnd_priv_to_info(priv);
762 struct device *dev = &pdev->dev;
763 int nr, i;
34cb6123 764 int dai_i, ssi_i, src_i, dvc_i;
90e8e50f
KM		 765
766 if (!of_data)
767 return;
768
769 dai_node = of_get_child_by_name(dev->of_node, "rcar_sound,dai");
770 if (!dai_node)
771 return;
772
773 nr = of_get_child_count(dai_node);
774 if (!nr)
775 return;
776
777 dai_info = devm_kzalloc(dev,
778 sizeof(struct rsnd_dai_platform_info) * nr,
779 GFP_KERNEL);
780 if (!dai_info) {
781 dev_err(dev, "dai info allocation error\n");
782 return;
783 }
784
785 info->dai_info_nr = nr;
786 info->dai_info = dai_info;
787
788 ssi_node = of_get_child_by_name(dev->of_node, "rcar_sound,ssi");
789 src_node = of_get_child_by_name(dev->of_node, "rcar_sound,src");
34cb6123 790 dvc_node = of_get_child_by_name(dev->of_node, "rcar_sound,dvc");
90e8e50f
KM		 791
792#define mod_parse(name) \
793if (name##_node) { \
794 struct rsnd_##name##_platform_info *name##_info; \
795 \
796 name##_i = 0; \
797 for_each_child_of_node(name##_node, name##_np) { \
798 name##_info = info->name##_info + name##_i; \
799 \
800 if (name##_np == playback) \
801 dai_info->playback.name = name##_info; \
802 if (name##_np == capture) \
803 dai_info->capture.name = name##_info; \
804 \
805 name##_i++; \
806 } \
807}
808
809 /*
810 * parse all dai
811 */
812 dai_i = 0;
813 for_each_child_of_node(dai_node, dai_np) {
814 dai_info = info->dai_info + dai_i;
815
816 for (i = 0;; i++) {
817
818 playback = of_parse_phandle(dai_np, "playback", i);
819 capture = of_parse_phandle(dai_np, "capture", i);
820
821 if (!playback && !capture)
822 break;
823
824 mod_parse(ssi);
825 mod_parse(src);
34cb6123 826 mod_parse(dvc);
90e8e50f 827
a493b6a6
JL		 828 of_node_put(playback);
829 of_node_put(capture);
90e8e50f
KM		 830 }
831
832 dai_i++;
833 }
834}
835
1536a968 836static int rsnd_dai_probe(struct platform_device *pdev,
90e8e50f 837 const struct rsnd_of_data *of_data,
1536a968
KM		 838 struct rsnd_priv *priv)
839{
840 struct snd_soc_dai_driver *drv;
78f13d0c 841 struct rcar_snd_info *info = rsnd_priv_to_info(priv);
1536a968 842 struct rsnd_dai *rdai;
29e69fd2 843 struct rsnd_ssi_platform_info *pmod, *cmod;
1536a968 844 struct device *dev = rsnd_priv_to_dev(priv);
90e8e50f 845 int dai_nr;
4b4dab82
KM		 846 int i;
847
90e8e50f
KM		 848 rsnd_of_parse_dai(pdev, of_data, priv);
849
90e8e50f 850 dai_nr = info->dai_info_nr;
4b4dab82
KM		 851 if (!dai_nr) {
852 dev_err(dev, "no dai\n");
853 return -EIO;
854 }
1536a968
KM		 855
856 drv = devm_kzalloc(dev, sizeof(*drv) * dai_nr, GFP_KERNEL);
857 rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL);
858 if (!drv || !rdai) {
859 dev_err(dev, "dai allocate failed\n");
860 return -ENOMEM;
861 }
862
ecba9e72 863 priv->rdai_nr = dai_nr;
49848073
KM		 864 priv->daidrv = drv;
865 priv->rdai = rdai;
866
1536a968 867 for (i = 0; i < dai_nr; i++) {
1536a968 868
7c57d76f
KM		 869 pmod = info->dai_info[i].playback.ssi;
870 cmod = info->dai_info[i].capture.ssi;
1536a968
KM		 871
872 /*
873 * init rsnd_dai
874 */
1536a968
KM		 875 snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i);
876
877 /*
878 * init snd_soc_dai_driver
879 */
880 drv[i].name = rdai[i].name;
881 drv[i].ops = &rsnd_soc_dai_ops;
4b4dab82 882 if (pmod) {
1536a968
KM		 883 drv[i].playback.rates = RSND_RATES;
884 drv[i].playback.formats = RSND_FMTS;
885 drv[i].playback.channels_min = 2;
886 drv[i].playback.channels_max = 2;
389933d9 887
29e69fd2 888 rdai[i].playback.info = &info->dai_info[i].playback;
9bfed6cf 889 rsnd_path_init(priv, &rdai[i], &rdai[i].playback);
1536a968 890 }
4b4dab82 891 if (cmod) {
1536a968
KM		 892 drv[i].capture.rates = RSND_RATES;
893 drv[i].capture.formats = RSND_FMTS;
894 drv[i].capture.channels_min = 2;
895 drv[i].capture.channels_max = 2;
389933d9 896
29e69fd2 897 rdai[i].capture.info = &info->dai_info[i].capture;
9bfed6cf 898 rsnd_path_init(priv, &rdai[i], &rdai[i].capture);
1536a968
KM		 899 }
900
4b4dab82
KM		 901 dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name,
902 pmod ? "play" : " -- ",
903 cmod ? "capture" : " -- ");
1536a968
KM		 904 }
905
1536a968
KM		 906 return 0;
907}
908
1536a968
KM		 909/*
910 * pcm ops
911 */
912static struct snd_pcm_hardware rsnd_pcm_hardware = {
913 .info = SNDRV_PCM_INFO_INTERLEAVED |
914 SNDRV_PCM_INFO_MMAP |
706c6621 915 SNDRV_PCM_INFO_MMAP_VALID,
1536a968
KM		 916 .buffer_bytes_max = 64 * 1024,
917 .period_bytes_min = 32,
918 .period_bytes_max = 8192,
919 .periods_min = 1,
920 .periods_max = 32,
921 .fifo_size = 256,
922};
923
924static int rsnd_pcm_open(struct snd_pcm_substream *substream)
925{
926 struct snd_pcm_runtime *runtime = substream->runtime;
927 int ret = 0;
928
929 snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
930
931 ret = snd_pcm_hw_constraint_integer(runtime,
932 SNDRV_PCM_HW_PARAM_PERIODS);
933
934 return ret;
935}
936
937static int rsnd_hw_params(struct snd_pcm_substream *substream,
938 struct snd_pcm_hw_params *hw_params)
939{
940 return snd_pcm_lib_malloc_pages(substream,
941 params_buffer_bytes(hw_params));
942}
943
944static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
945{
946 struct snd_pcm_runtime *runtime = substream->runtime;
947 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
948 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
949 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
950
951 return bytes_to_frames(runtime, io->byte_pos);
952}
953
954static struct snd_pcm_ops rsnd_pcm_ops = {
955 .open = rsnd_pcm_open,
956 .ioctl = snd_pcm_lib_ioctl,
957 .hw_params = rsnd_hw_params,
958 .hw_free = snd_pcm_lib_free_pages,
959 .pointer = rsnd_pointer,
960};
961
170a2497
KM		 962/*
963 * snd_kcontrol
964 */
965#define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
966static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
967 struct snd_ctl_elem_info *uinfo)
968{
969 struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
970
971 if (cfg->texts) {
972 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
973 uinfo->count = cfg->size;
974 uinfo->value.enumerated.items = cfg->max;
975 if (uinfo->value.enumerated.item >= cfg->max)
976 uinfo->value.enumerated.item = cfg->max - 1;
977 strlcpy(uinfo->value.enumerated.name,
978 cfg->texts[uinfo->value.enumerated.item],
979 sizeof(uinfo->value.enumerated.name));
980 } else {
981 uinfo->count = cfg->size;
982 uinfo->value.integer.min = 0;
983 uinfo->value.integer.max = cfg->max;
984 uinfo->type = (cfg->max == 1) ?
985 SNDRV_CTL_ELEM_TYPE_BOOLEAN :
986 SNDRV_CTL_ELEM_TYPE_INTEGER;
987 }
988
989 return 0;
990}
991
992static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
993 struct snd_ctl_elem_value *uc)
994{
995 struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
996 int i;
997
998 for (i = 0; i < cfg->size; i++)
999 if (cfg->texts)
1000 uc->value.enumerated.item[i] = cfg->val[i];
1001 else
1002 uc->value.integer.value[i] = cfg->val[i];
1003
1004 return 0;
1005}
1006
1007static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
1008 struct snd_ctl_elem_value *uc)
1009{
1010 struct rsnd_mod *mod = snd_kcontrol_chip(kctrl);
1011 struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
1012 int i, change = 0;
1013
1014 for (i = 0; i < cfg->size; i++) {
1015 if (cfg->texts) {
1016 change |= (uc->value.enumerated.item[i] != cfg->val[i]);
1017 cfg->val[i] = uc->value.enumerated.item[i];
1018 } else {
1019 change |= (uc->value.integer.value[i] != cfg->val[i]);
1020 cfg->val[i] = uc->value.integer.value[i];
1021 }
1022 }
1023
1024 if (change)
1025 cfg->update(mod);
1026
1027 return change;
1028}
1029
1030static int __rsnd_kctrl_new(struct rsnd_mod *mod,
1031 struct rsnd_dai *rdai,
1032 struct snd_soc_pcm_runtime *rtd,
1033 const unsigned char *name,
1034 struct rsnd_kctrl_cfg *cfg,
1035 void (*update)(struct rsnd_mod *mod))
1036{
1037 struct snd_card *card = rtd->card->snd_card;
1038 struct snd_kcontrol *kctrl;
1039 struct snd_kcontrol_new knew = {
1040 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1041 .name = name,
1042 .info = rsnd_kctrl_info,
1043 .get = rsnd_kctrl_get,
1044 .put = rsnd_kctrl_put,
1045 .private_value = (unsigned long)cfg,
1046 };
1047 int ret;
1048
1049 kctrl = snd_ctl_new1(&knew, mod);
1050 if (!kctrl)
1051 return -ENOMEM;
1052
1053 ret = snd_ctl_add(card, kctrl);
1054 if (ret < 0)
1055 return ret;
1056
1057 cfg->update = update;
1058
1059 return 0;
1060}
1061
1062int rsnd_kctrl_new_m(struct rsnd_mod *mod,
1063 struct rsnd_dai *rdai,
1064 struct snd_soc_pcm_runtime *rtd,
1065 const unsigned char *name,
1066 void (*update)(struct rsnd_mod *mod),
1067 struct rsnd_kctrl_cfg_m *_cfg,
1068 u32 max)
1069{
1070 _cfg->cfg.max = max;
1071 _cfg->cfg.size = RSND_DVC_CHANNELS;
1072 _cfg->cfg.val = _cfg->val;
1073 return __rsnd_kctrl_new(mod, rdai, rtd, name, &_cfg->cfg, update);
1074}
1075
1076int rsnd_kctrl_new_s(struct rsnd_mod *mod,
1077 struct rsnd_dai *rdai,
1078 struct snd_soc_pcm_runtime *rtd,
1079 const unsigned char *name,
1080 void (*update)(struct rsnd_mod *mod),
1081 struct rsnd_kctrl_cfg_s *_cfg,
1082 u32 max)
1083{
1084 _cfg->cfg.max = max;
1085 _cfg->cfg.size = 1;
1086 _cfg->cfg.val = &_cfg->val;
1087 return __rsnd_kctrl_new(mod, rdai, rtd, name, &_cfg->cfg, update);
1088}
1089
1090int rsnd_kctrl_new_e(struct rsnd_mod *mod,
1091 struct rsnd_dai *rdai,
1092 struct snd_soc_pcm_runtime *rtd,
1093 const unsigned char *name,
1094 struct rsnd_kctrl_cfg_s *_cfg,
1095 void (*update)(struct rsnd_mod *mod),
1096 const char * const *texts,
1097 u32 max)
1098{
1099 _cfg->cfg.max = max;
1100 _cfg->cfg.size = 1;
1101 _cfg->cfg.val = &_cfg->val;
1102 _cfg->cfg.texts = texts;
1103 return __rsnd_kctrl_new(mod, rdai, rtd, name, &_cfg->cfg, update);
1104}
1105
1536a968
KM		 1106/*
1107 * snd_soc_platform
1108 */
1109
1110#define PREALLOC_BUFFER (32 * 1024)
1111#define PREALLOC_BUFFER_MAX (32 * 1024)
1112
1113static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
1114{
7c63f3c0
KM		 1115 struct snd_soc_dai *dai = rtd->cpu_dai;
1116 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1117 int ret;
bff58ea4 1118
7c63f3c0
KM		 1119 ret = rsnd_dai_call(pcm_new, &rdai->playback, rdai, rtd);
1120 if (ret)
1121 return ret;
bff58ea4 1122
7c63f3c0
KM		 1123 ret = rsnd_dai_call(pcm_new, &rdai->capture, rdai, rtd);
1124 if (ret)
1125 return ret;
bff58ea4 1126
1536a968
KM		 1127 return snd_pcm_lib_preallocate_pages_for_all(
1128 rtd->pcm,
1129 SNDRV_DMA_TYPE_DEV,
1130 rtd->card->snd_card->dev,
1131 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1132}
1133
1536a968
KM		 1134static struct snd_soc_platform_driver rsnd_soc_platform = {
1135 .ops = &rsnd_pcm_ops,
1136 .pcm_new = rsnd_pcm_new,
1536a968
KM		 1137};
1138
1139static const struct snd_soc_component_driver rsnd_soc_component = {
1140 .name = "rsnd",
1141};
1142
d3a76823
KM		 1143static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1144 struct rsnd_dai *rdai,
1145 int is_play)
1146{
1147 struct rsnd_dai_stream *io = is_play ? &rdai->playback : &rdai->capture;
1148 int ret;
1149
1150 ret = rsnd_dai_call(probe, io, rdai);
1151 if (ret == -EAGAIN) {
1152 /*
1153 * Fallback to PIO mode
1154 */
1155
1156 /*
1157 * call "remove" for SSI/SRC/DVC
1158 * SSI will be switch to PIO mode if it was DMA mode
1159 * see
1160 * rsnd_dma_init()
97463e19 1161 * rsnd_ssi_fallback()
d3a76823
KM		 1162 */
1163 rsnd_dai_call(remove, io, rdai);
1164
1165 /*
1166 * remove SRC/DVC from DAI,
1167 */
1168 rsnd_path_break(priv, io, src);
1169 rsnd_path_break(priv, io, dvc);
1170
97463e19
KM		 1171 /*
1172 * fallback
1173 */
1174 rsnd_dai_call(fallback, io, rdai);
1175
d3a76823
KM		 1176 /*
1177 * retry to "probe".
1178 * DAI has SSI which is PIO mode only now.
1179 */
1180 ret = rsnd_dai_call(probe, io, rdai);
1181 }
1182
1183 return ret;
1184}
1185
1536a968
KM		 1186/*
1187 * rsnd probe
1188 */
1189static int rsnd_probe(struct platform_device *pdev)
1190{
1191 struct rcar_snd_info *info;
1192 struct rsnd_priv *priv;
1193 struct device *dev = &pdev->dev;
7681f6ac 1194 struct rsnd_dai *rdai;
90e8e50f
KM		 1195 const struct of_device_id *of_id = of_match_device(rsnd_of_match, dev);
1196 const struct rsnd_of_data *of_data;
d1ac970f 1197 int (*probe_func[])(struct platform_device *pdev,
90e8e50f 1198 const struct rsnd_of_data *of_data,
d1ac970f
KM		 1199 struct rsnd_priv *priv) = {
1200 rsnd_gen_probe,
1201 rsnd_ssi_probe,
ba9c949f 1202 rsnd_src_probe,
bff58ea4 1203 rsnd_dvc_probe,
d1ac970f
KM		 1204 rsnd_adg_probe,
1205 rsnd_dai_probe,
1206 };
1207 int ret, i;
1536a968 1208
90e8e50f
KM		 1209 info = NULL;
1210 of_data = NULL;
1211 if (of_id) {
1212 info = devm_kzalloc(&pdev->dev,
1213 sizeof(struct rcar_snd_info), GFP_KERNEL);
1214 of_data = of_id->data;
1215 } else {
1216 info = pdev->dev.platform_data;
1217 }
1218
1536a968
KM		 1219 if (!info) {
1220 dev_err(dev, "driver needs R-Car sound information\n");
1221 return -ENODEV;
1222 }
1223
1224 /*
1225 * init priv data
1226 */
1227 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1228 if (!priv) {
1229 dev_err(dev, "priv allocate failed\n");
1230 return -ENODEV;
1231 }
1232
9f464f8e 1233 priv->pdev = pdev;
1536a968
KM		 1234 priv->info = info;
1235 spin_lock_init(&priv->lock);
1236
1237 /*
1238 * init each module
1239 */
d1ac970f 1240 for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
90e8e50f 1241 ret = probe_func[i](pdev, of_data, priv);
d1ac970f
KM		 1242 if (ret)
1243 return ret;
1244 }
07539c1d 1245
7681f6ac 1246 for_each_rsnd_dai(rdai, priv, i) {
d3a76823 1247 ret = rsnd_rdai_continuance_probe(priv, rdai, 1);
7681f6ac 1248 if (ret)
d62a3dcd 1249 goto exit_snd_probe;
dfc9403b 1250
d3a76823 1251 ret = rsnd_rdai_continuance_probe(priv, rdai, 0);
7681f6ac 1252 if (ret)
d62a3dcd 1253 goto exit_snd_probe;
7681f6ac 1254 }
4b4dab82 1255
1536a968
KM		 1256 /*
1257 * asoc register
1258 */
1259 ret = snd_soc_register_platform(dev, &rsnd_soc_platform);
1260 if (ret < 0) {
1261 dev_err(dev, "cannot snd soc register\n");
1262 return ret;
1263 }
1264
1265 ret = snd_soc_register_component(dev, &rsnd_soc_component,
ecba9e72 1266 priv->daidrv, rsnd_rdai_nr(priv));
1536a968
KM		 1267 if (ret < 0) {
1268 dev_err(dev, "cannot snd dai register\n");
1269 goto exit_snd_soc;
1270 }
1271
1272 dev_set_drvdata(dev, priv);
1273
1274 pm_runtime_enable(dev);
1275
1276 dev_info(dev, "probed\n");
1277 return ret;
1278
1279exit_snd_soc:
1280 snd_soc_unregister_platform(dev);
d62a3dcd
KM		 1281exit_snd_probe:
1282 for_each_rsnd_dai(rdai, priv, i) {
1283 rsnd_dai_call(remove, &rdai->playback, rdai);
1284 rsnd_dai_call(remove, &rdai->capture, rdai);
1285 }
1536a968
KM		 1286
1287 return ret;
1288}
1289
1290static int rsnd_remove(struct platform_device *pdev)
1291{
1292 struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
7681f6ac 1293 struct rsnd_dai *rdai;
d62a3dcd 1294 int ret = 0, i;
1536a968
KM		 1295
1296 pm_runtime_disable(&pdev->dev);
1297
7681f6ac 1298 for_each_rsnd_dai(rdai, priv, i) {
d62a3dcd
KM		 1299 ret |= rsnd_dai_call(remove, &rdai->playback, rdai);
1300 ret |= rsnd_dai_call(remove, &rdai->capture, rdai);
7681f6ac 1301 }
1536a968 1302
d62a3dcd 1303 return ret;
1536a968
KM		 1304}
1305
1306static struct platform_driver rsnd_driver = {
1307 .driver = {
1308 .name = "rcar_sound",
90e8e50f 1309 .of_match_table = rsnd_of_match,
1536a968
KM		 1310 },
1311 .probe = rsnd_probe,
1312 .remove = rsnd_remove,
1313};
1314module_platform_driver(rsnd_driver);
1315
1316MODULE_LICENSE("GPL");
1317MODULE_DESCRIPTION("Renesas R-Car audio driver");
1318MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1319MODULE_ALIAS("platform:rcar-pcm-audio");
Linux kernel - Deliverables
This page took 0.232033 seconds and 5 git commands to generate.