sound/soc/sh/rcar/core.c

   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 src
  77  *   |
  78  *   +- src
  79  *      |
  80  *      +- src[0]
  81  *      +- src[1]
  82  *      +- src[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 static const struct rsnd_of_data rsnd_of_data_gen1 = {
 103         .flags = RSND_GEN1,
 104 };
 105
 106 static const struct rsnd_of_data rsnd_of_data_gen2 = {
 107         .flags = RSND_GEN2,
 108 };
 109
 110 static const struct of_device_id rsnd_of_match[] = {
 111         { .compatible = "renesas,rcar_sound-gen1", .data = &rsnd_of_data_gen1 },
 112         { .compatible = "renesas,rcar_sound-gen2", .data = &rsnd_of_data_gen2 },
 113         {},
 114 };
 115 MODULE_DEVICE_TABLE(of, rsnd_of_match);
 116
 117 /*
 118  *      rsnd_platform functions
 119  */
 120 #define rsnd_platform_call(priv, dai, func, param...)   \
 121         (!(priv->info->func) ? 0 :              \
 122          priv->info->func(param))
 123
 124 #define rsnd_is_enable_path(io, name) \
 125         ((io)->info ? (io)->info->name : NULL)
 126 #define rsnd_info_id(priv, io, name) \
 127         ((io)->info->name - priv->info->name##_info)
 128
 129 /*
 130  *      rsnd_mod functions
 131  */
 132 char *rsnd_mod_name(struct rsnd_mod *mod)
 133 {
 134         if (!mod || !mod->ops)
 135                 return "unknown";
 136
 137         return mod->ops->name;
 138 }
 139
 140 struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
 141                                   struct rsnd_mod *mod)
 142 {
 143         if (!mod || !mod->ops || !mod->ops->dma_req)
 144                 return NULL;
 145
 146         return mod->ops->dma_req(io, mod);
 147 }
 148
 149 int rsnd_mod_init(struct rsnd_priv *priv,
 150                   struct rsnd_mod *mod,
 151                    struct rsnd_mod_ops *ops,
 152                    struct clk *clk,
 153                    enum rsnd_mod_type type,
 154                    int id)
 155 {
 156         int ret = clk_prepare(clk);
 157
 158         if (ret)
 159                 return ret;
 160
 161         mod->id         = id;
 162         mod->ops        = ops;
 163         mod->type       = type;
 164         mod->clk        = clk;
 165         mod->priv       = priv;
 166
 167         return ret;
 168 }
 169
 170 void rsnd_mod_quit(struct rsnd_mod *mod)
 171 {
 172         if (mod->clk)
 173                 clk_unprepare(mod->clk);
 174 }
 175
 176 void rsnd_mod_interrupt(struct rsnd_mod *mod,
 177                         void (*callback)(struct rsnd_mod *mod,
 178                                          struct rsnd_dai_stream *io))
 179 {
 180         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 181         struct rsnd_dai_stream *io;
 182         struct rsnd_dai *rdai;
 183         int i, j;
 184
 185         for_each_rsnd_dai(rdai, priv, j) {
 186
 187                 for (i = 0; i < RSND_MOD_MAX; i++) {
 188                         io = &rdai->playback;
 189                         if (mod == io->mod[i])
 190                                 callback(mod, io);
 191
 192                         io = &rdai->capture;
 193                         if (mod == io->mod[i])
 194                                 callback(mod, io);
 195                 }
 196         }
 197 }
 198
 199 int rsnd_io_is_working(struct rsnd_dai_stream *io)
 200 {
 201         /* see rsnd_dai_stream_init/quit() */
 202         return !!io->substream;
 203 }
 204
 205 /*
 206  *      ADINR function
 207  */
 208 u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 209 {
 210         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 211         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 212         struct device *dev = rsnd_priv_to_dev(priv);
 213         u32 adinr = runtime->channels;
 214
 215         switch (runtime->sample_bits) {
 216         case 16:
 217                 adinr |= (8 << 16);
 218                 break;
 219         case 32:
 220                 adinr |= (0 << 16);
 221                 break;
 222         default:
 223                 dev_warn(dev, "not supported sample bits\n");
 224                 return 0;
 225         }
 226
 227         return adinr;
 228 }
 229
 230 u32 rsnd_get_adinr_chan(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 231 {
 232         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 233         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 234         struct device *dev = rsnd_priv_to_dev(priv);
 235         u32 chan = runtime->channels;
 236
 237         switch (chan) {
 238         case 1:
 239         case 2:
 240         case 4:
 241         case 6:
 242         case 8:
 243                 break;
 244         default:
 245                 dev_warn(dev, "not supported channel\n");
 246                 chan = 0;
 247                 break;
 248         }
 249
 250         return chan;
 251 }
 252
 253 /*
 254  *      DALIGN function
 255  */
 256 u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 257 {
 258         struct rsnd_mod *src = rsnd_io_to_mod_src(io);
 259         struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
 260         struct rsnd_mod *target = src ? src : ssi;
 261         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 262         u32 val = 0x76543210;
 263         u32 mask = ~0;
 264
 265         mask <<= runtime->channels * 4;
 266         val = val & mask;
 267
 268         switch (runtime->sample_bits) {
 269         case 16:
 270                 val |= 0x67452301 & ~mask;
 271                 break;
 272         case 32:
 273                 val |= 0x76543210 & ~mask;
 274                 break;
 275         }
 276
 277         /*
 278          * exchange channeles on SRC if possible,
 279          * otherwise, R/L volume settings on DVC
 280          * changes inverted channels
 281          */
 282         if (mod == target)
 283                 return val;
 284         else
 285                 return 0x76543210;
 286 }
 287
 288 /*
 289  *      rsnd_dai functions
 290  */
 291 #define __rsnd_mod_call(mod, io, func, param...)                \
 292 ({                                                              \
 293         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);         \
 294         struct device *dev = rsnd_priv_to_dev(priv);            \
 295         u32 mask = 0xF << __rsnd_mod_shift_##func;                      \
 296         u8 val  = (mod->status >> __rsnd_mod_shift_##func) & 0xF;       \
 297         u8 add  = ((val + __rsnd_mod_add_##func) & 0xF);                \
 298         int ret = 0;                                                    \
 299         int called = 0;                                                 \
 300         if (val == __rsnd_mod_call_##func) {                            \
 301                 called = 1;                                             \
 302                 ret = (mod)->ops->func(mod, io, param);                 \
 303         }                                                               \
 304         mod->status = (mod->status & ~mask) +                           \
 305                 (add << __rsnd_mod_shift_##func);                       \
 306         dev_dbg(dev, "%s[%d] 0x%08x %s\n",                              \
 307                 rsnd_mod_name(mod), rsnd_mod_id(mod), mod->status,      \
 308                 called ? #func : "");                                   \
 309         ret;                                                            \
 310 })
 311
 312 #define rsnd_mod_call(mod, io, func, param...)  \
 313         (!(mod) ? -ENODEV :                     \
 314          !((mod)->ops->func) ? 0 :              \
 315          __rsnd_mod_call(mod, io, func, param))
 316
 317 #define rsnd_dai_call(fn, io, param...)                         \
 318 ({                                                              \
 319         struct rsnd_mod *mod;                                   \
 320         int ret = 0, i;                                         \
 321         for (i = 0; i < RSND_MOD_MAX; i++) {                    \
 322                 mod = (io)->mod[i];                             \
 323                 if (!mod)                                       \
 324                         continue;                               \
 325                 ret = rsnd_mod_call(mod, io, fn, param);        \
 326                 if (ret < 0)                                    \
 327                         break;                                  \
 328         }                                                       \
 329         ret;                                                    \
 330 })
 331
 332 static int rsnd_dai_connect(struct rsnd_mod *mod,
 333                             struct rsnd_dai_stream *io)
 334 {
 335         struct rsnd_priv *priv;
 336         struct device *dev;
 337
 338         if (!mod)
 339                 return -EIO;
 340
 341         priv = rsnd_mod_to_priv(mod);
 342         dev = rsnd_priv_to_dev(priv);
 343
 344         io->mod[mod->type] = mod;
 345
 346         dev_dbg(dev, "%s[%d] is connected to io (%s)\n",
 347                 rsnd_mod_name(mod), rsnd_mod_id(mod),
 348                 rsnd_io_is_play(io) ? "Playback" : "Capture");
 349
 350         return 0;
 351 }
 352
 353 static void rsnd_dai_disconnect(struct rsnd_mod *mod,
 354                                 struct rsnd_dai_stream *io)
 355 {
 356         io->mod[mod->type] = NULL;
 357 }
 358
 359 struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
 360 {
 361         if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
 362                 return NULL;
 363
 364         return priv->rdai + id;
 365 }
 366
 367 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
 368 static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
 369 {
 370         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
 371
 372         return rsnd_rdai_get(priv, dai->id);
 373 }
 374
 375 /*
 376  *      rsnd_soc_dai functions
 377  */
 378 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional)
 379 {
 380         struct snd_pcm_substream *substream = io->substream;
 381         struct snd_pcm_runtime *runtime = substream->runtime;
 382         int pos = io->byte_pos + additional;
 383
 384         pos %= (runtime->periods * io->byte_per_period);
 385
 386         return pos;
 387 }
 388
 389 bool rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
 390 {
 391         io->byte_pos += byte;
 392
 393         if (io->byte_pos >= io->next_period_byte) {
 394                 struct snd_pcm_substream *substream = io->substream;
 395                 struct snd_pcm_runtime *runtime = substream->runtime;
 396
 397                 io->period_pos++;
 398                 io->next_period_byte += io->byte_per_period;
 399
 400                 if (io->period_pos >= runtime->periods) {
 401                         io->byte_pos = 0;
 402                         io->period_pos = 0;
 403                         io->next_period_byte = io->byte_per_period;
 404                 }
 405
 406                 return true;
 407         }
 408
 409         return false;
 410 }
 411
 412 void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
 413 {
 414         struct snd_pcm_substream *substream = io->substream;
 415
 416         /*
 417          * this function should be called...
 418          *
 419          * - if rsnd_dai_pointer_update() returns true
 420          * - without spin lock
 421          */
 422
 423         snd_pcm_period_elapsed(substream);
 424 }
 425
 426 static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
 427                                 struct snd_pcm_substream *substream)
 428 {
 429         struct snd_pcm_runtime *runtime = substream->runtime;
 430
 431         io->substream           = substream;
 432         io->byte_pos            = 0;
 433         io->period_pos          = 0;
 434         io->byte_per_period     = runtime->period_size *
 435                                   runtime->channels *
 436                                   samples_to_bytes(runtime, 1);
 437         io->next_period_byte    = io->byte_per_period;
 438 }
 439
 440 static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
 441 {
 442         io->substream           = NULL;
 443 }
 444
 445 static
 446 struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
 447 {
 448         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 449
 450         return  rtd->cpu_dai;
 451 }
 452
 453 static
 454 struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
 455                                         struct snd_pcm_substream *substream)
 456 {
 457         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 458                 return &rdai->playback;
 459         else
 460                 return &rdai->capture;
 461 }
 462
 463 static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
 464                             struct snd_soc_dai *dai)
 465 {
 466         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
 467         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 468         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 469         int ssi_id = rsnd_mod_id(rsnd_io_to_mod_ssi(io));
 470         int ret;
 471         unsigned long flags;
 472
 473         spin_lock_irqsave(&priv->lock, flags);
 474
 475         switch (cmd) {
 476         case SNDRV_PCM_TRIGGER_START:
 477                 rsnd_dai_stream_init(io, substream);
 478
 479                 ret = rsnd_platform_call(priv, dai, start, ssi_id);
 480                 if (ret < 0)
 481                         goto dai_trigger_end;
 482
 483                 ret = rsnd_dai_call(init, io, priv);
 484                 if (ret < 0)
 485                         goto dai_trigger_end;
 486
 487                 ret = rsnd_dai_call(start, io, priv);
 488                 if (ret < 0)
 489                         goto dai_trigger_end;
 490                 break;
 491         case SNDRV_PCM_TRIGGER_STOP:
 492                 ret = rsnd_dai_call(stop, io, priv);
 493                 if (ret < 0)
 494                         goto dai_trigger_end;
 495
 496                 ret = rsnd_dai_call(quit, io, priv);
 497                 if (ret < 0)
 498                         goto dai_trigger_end;
 499
 500                 ret = rsnd_platform_call(priv, dai, stop, ssi_id);
 501                 if (ret < 0)
 502                         goto dai_trigger_end;
 503
 504                 rsnd_dai_stream_quit(io);
 505                 break;
 506         default:
 507                 ret = -EINVAL;
 508         }
 509
 510 dai_trigger_end:
 511         spin_unlock_irqrestore(&priv->lock, flags);
 512
 513         return ret;
 514 }
 515
 516 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 517 {
 518         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 519
 520         /* set master/slave audio interface */
 521         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 522         case SND_SOC_DAIFMT_CBM_CFM:
 523                 rdai->clk_master = 0;
 524                 break;
 525         case SND_SOC_DAIFMT_CBS_CFS:
 526                 rdai->clk_master = 1; /* codec is slave, cpu is master */
 527                 break;
 528         default:
 529                 return -EINVAL;
 530         }
 531
 532         /* set format */
 533         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 534         case SND_SOC_DAIFMT_I2S:
 535                 rdai->sys_delay = 0;
 536                 rdai->data_alignment = 0;
 537                 rdai->frm_clk_inv = 0;
 538                 break;
 539         case SND_SOC_DAIFMT_LEFT_J:
 540                 rdai->sys_delay = 1;
 541                 rdai->data_alignment = 0;
 542                 rdai->frm_clk_inv = 1;
 543                 break;
 544         case SND_SOC_DAIFMT_RIGHT_J:
 545                 rdai->sys_delay = 1;
 546                 rdai->data_alignment = 1;
 547                 rdai->frm_clk_inv = 1;
 548                 break;
 549         }
 550
 551         /* set clock inversion */
 552         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 553         case SND_SOC_DAIFMT_NB_IF:
 554                 rdai->bit_clk_inv =  rdai->bit_clk_inv;
 555                 rdai->frm_clk_inv = !rdai->frm_clk_inv;
 556                 break;
 557         case SND_SOC_DAIFMT_IB_NF:
 558                 rdai->bit_clk_inv = !rdai->bit_clk_inv;
 559                 rdai->frm_clk_inv =  rdai->frm_clk_inv;
 560                 break;
 561         case SND_SOC_DAIFMT_IB_IF:
 562                 rdai->bit_clk_inv = !rdai->bit_clk_inv;
 563                 rdai->frm_clk_inv = !rdai->frm_clk_inv;
 564                 break;
 565         case SND_SOC_DAIFMT_NB_NF:
 566         default:
 567                 break;
 568         }
 569
 570         return 0;
 571 }
 572
 573 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
 574         .trigger        = rsnd_soc_dai_trigger,
 575         .set_fmt        = rsnd_soc_dai_set_fmt,
 576 };
 577
 578 #define rsnd_path_add(priv, io, type)                           \
 579 ({                                                              \
 580         struct rsnd_mod *mod;                                   \
 581         int ret = 0;                                            \
 582         int id = -1;                                            \
 583                                                                 \
 584         if (rsnd_is_enable_path(io, type)) {                    \
 585                 id = rsnd_info_id(priv, io, type);              \
 586                 if (id >= 0) {                                  \
 587                         mod = rsnd_##type##_mod_get(priv, id);  \
 588                         ret = rsnd_dai_connect(mod, io);        \
 589                 }                                               \
 590         }                                                       \
 591         ret;                                                    \
 592 })
 593
 594 #define rsnd_path_remove(priv, io, type)                        \
 595 {                                                               \
 596         struct rsnd_mod *mod;                                   \
 597         int id = -1;                                            \
 598                                                                 \
 599         if (rsnd_is_enable_path(io, type)) {                    \
 600                 id = rsnd_info_id(priv, io, type);              \
 601                 if (id >= 0) {                                  \
 602                         mod = rsnd_##type##_mod_get(priv, id);  \
 603                         rsnd_dai_disconnect(mod, io);           \
 604                 }                                               \
 605         }                                                       \
 606 }
 607
 608 void rsnd_path_parse(struct rsnd_priv *priv,
 609                      struct rsnd_dai_stream *io)
 610 {
 611         struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
 612         struct rsnd_mod *mix = rsnd_io_to_mod_mix(io);
 613         struct rsnd_mod *src = rsnd_io_to_mod_src(io);
 614         struct rsnd_mod *cmd;
 615         struct device *dev = rsnd_priv_to_dev(priv);
 616         u32 data;
 617
 618         /* Gen1 is not supported */
 619         if (rsnd_is_gen1(priv))
 620                 return;
 621
 622         if (!mix && !dvc)
 623                 return;
 624
 625         if (mix) {
 626                 struct rsnd_dai *rdai;
 627                 int i;
 628                 u32 path[] = {
 629                         [0] = 0,
 630                         [1] = 1 << 0,
 631                         [2] = 0,
 632                         [3] = 0,
 633                         [4] = 0,
 634                         [5] = 1 << 8
 635                 };
 636
 637                 /*
 638                  * it is assuming that integrater is well understanding about
 639                  * data path. Here doesn't check impossible connection,
 640                  * like src2 + src5
 641                  */
 642                 data = 0;
 643                 for_each_rsnd_dai(rdai, priv, i) {
 644                         io = &rdai->playback;
 645                         if (mix == rsnd_io_to_mod_mix(io))
 646                                 data |= path[rsnd_mod_id(src)];
 647
 648                         io = &rdai->capture;
 649                         if (mix == rsnd_io_to_mod_mix(io))
 650                                 data |= path[rsnd_mod_id(src)];
 651                 }
 652
 653                 /*
 654                  * We can't use ctu = rsnd_io_ctu() here.
 655                  * Since, ID of dvc/mix are 0 or 1 (= same as CMD number)
 656                  * but ctu IDs are 0 - 7 (= CTU00 - CTU13)
 657                  */
 658                 cmd = mix;
 659         } else {
 660                 u32 path[] = {
 661                         [0] = 0x30000,
 662                         [1] = 0x30001,
 663                         [2] = 0x40000,
 664                         [3] = 0x10000,
 665                         [4] = 0x20000,
 666                         [5] = 0x40100
 667                 };
 668
 669                 data = path[rsnd_mod_id(src)];
 670
 671                 cmd = dvc;
 672         }
 673
 674         dev_dbg(dev, "ctu/mix path = 0x%08x", data);
 675
 676         rsnd_mod_write(cmd, CMD_ROUTE_SLCT, data);
 677
 678         rsnd_mod_write(cmd, CMD_CTRL, 0x10);
 679 }
 680
 681 static int rsnd_path_init(struct rsnd_priv *priv,
 682                           struct rsnd_dai *rdai,
 683                           struct rsnd_dai_stream *io)
 684 {
 685         int ret;
 686
 687         /*
 688          * Gen1 is created by SRU/SSI, and this SRU is base module of
 689          * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
 690          *
 691          * Easy image is..
 692          *      Gen1 SRU = Gen2 SCU + SSIU + etc
 693          *
 694          * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
 695          * using fixed path.
 696          */
 697
 698         /* SSI */
 699         ret = rsnd_path_add(priv, io, ssi);
 700         if (ret < 0)
 701                 return ret;
 702
 703         /* SRC */
 704         ret = rsnd_path_add(priv, io, src);
 705         if (ret < 0)
 706                 return ret;
 707
 708         /* CTU */
 709         ret = rsnd_path_add(priv, io, ctu);
 710         if (ret < 0)
 711                 return ret;
 712
 713         /* MIX */
 714         ret = rsnd_path_add(priv, io, mix);
 715         if (ret < 0)
 716                 return ret;
 717
 718         /* DVC */
 719         ret = rsnd_path_add(priv, io, dvc);
 720         if (ret < 0)
 721                 return ret;
 722
 723         return ret;
 724 }
 725
 726 static void rsnd_of_parse_dai(struct platform_device *pdev,
 727                               const struct rsnd_of_data *of_data,
 728                               struct rsnd_priv *priv)
 729 {
 730         struct device_node *dai_node,   *dai_np;
 731         struct device_node *ssi_node,   *ssi_np;
 732         struct device_node *src_node,   *src_np;
 733         struct device_node *ctu_node,   *ctu_np;
 734         struct device_node *mix_node,   *mix_np;
 735         struct device_node *dvc_node,   *dvc_np;
 736         struct device_node *playback, *capture;
 737         struct rsnd_dai_platform_info *dai_info;
 738         struct rcar_snd_info *info = rsnd_priv_to_info(priv);
 739         struct device *dev = &pdev->dev;
 740         int nr, i;
 741         int dai_i, ssi_i, src_i, ctu_i, mix_i, dvc_i;
 742
 743         if (!of_data)
 744                 return;
 745
 746         dai_node = of_get_child_by_name(dev->of_node, "rcar_sound,dai");
 747         if (!dai_node)
 748                 return;
 749
 750         nr = of_get_child_count(dai_node);
 751         if (!nr)
 752                 return;
 753
 754         dai_info = devm_kzalloc(dev,
 755                                 sizeof(struct rsnd_dai_platform_info) * nr,
 756                                 GFP_KERNEL);
 757         if (!dai_info) {
 758                 dev_err(dev, "dai info allocation error\n");
 759                 return;
 760         }
 761
 762         info->dai_info_nr       = nr;
 763         info->dai_info          = dai_info;
 764
 765         ssi_node = of_get_child_by_name(dev->of_node, "rcar_sound,ssi");
 766         src_node = of_get_child_by_name(dev->of_node, "rcar_sound,src");
 767         ctu_node = of_get_child_by_name(dev->of_node, "rcar_sound,ctu");
 768         mix_node = of_get_child_by_name(dev->of_node, "rcar_sound,mix");
 769         dvc_node = of_get_child_by_name(dev->of_node, "rcar_sound,dvc");
 770
 771 #define mod_parse(name)                                                 \
 772 if (name##_node) {                                                      \
 773         struct rsnd_##name##_platform_info *name##_info;                \
 774                                                                         \
 775         name##_i = 0;                                                   \
 776         for_each_child_of_node(name##_node, name##_np) {                \
 777                 name##_info = info->name##_info + name##_i;             \
 778                                                                         \
 779                 if (name##_np == playback)                              \
 780                         dai_info->playback.name = name##_info;          \
 781                 if (name##_np == capture)                               \
 782                         dai_info->capture.name = name##_info;           \
 783                                                                         \
 784                 name##_i++;                                             \
 785         }                                                               \
 786 }
 787
 788         /*
 789          * parse all dai
 790          */
 791         dai_i = 0;
 792         for_each_child_of_node(dai_node, dai_np) {
 793                 dai_info = info->dai_info + dai_i;
 794
 795                 for (i = 0;; i++) {
 796
 797                         playback = of_parse_phandle(dai_np, "playback", i);
 798                         capture  = of_parse_phandle(dai_np, "capture", i);
 799
 800                         if (!playback && !capture)
 801                                 break;
 802
 803                         mod_parse(ssi);
 804                         mod_parse(src);
 805                         mod_parse(ctu);
 806                         mod_parse(mix);
 807                         mod_parse(dvc);
 808
 809                         of_node_put(playback);
 810                         of_node_put(capture);
 811                 }
 812
 813                 dai_i++;
 814         }
 815 }
 816
 817 static int rsnd_dai_probe(struct platform_device *pdev,
 818                           const struct rsnd_of_data *of_data,
 819                           struct rsnd_priv *priv)
 820 {
 821         struct snd_soc_dai_driver *drv;
 822         struct rcar_snd_info *info = rsnd_priv_to_info(priv);
 823         struct rsnd_dai *rdai;
 824         struct rsnd_ssi_platform_info *pmod, *cmod;
 825         struct device *dev = rsnd_priv_to_dev(priv);
 826         int dai_nr;
 827         int i;
 828
 829         rsnd_of_parse_dai(pdev, of_data, priv);
 830
 831         dai_nr = info->dai_info_nr;
 832         if (!dai_nr) {
 833                 dev_err(dev, "no dai\n");
 834                 return -EIO;
 835         }
 836
 837         drv  = devm_kzalloc(dev, sizeof(*drv)  * dai_nr, GFP_KERNEL);
 838         rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL);
 839         if (!drv || !rdai) {
 840                 dev_err(dev, "dai allocate failed\n");
 841                 return -ENOMEM;
 842         }
 843
 844         priv->rdai_nr   = dai_nr;
 845         priv->daidrv    = drv;
 846         priv->rdai      = rdai;
 847
 848         for (i = 0; i < dai_nr; i++) {
 849
 850                 pmod = info->dai_info[i].playback.ssi;
 851                 cmod = info->dai_info[i].capture.ssi;
 852
 853                 /*
 854                  *      init rsnd_dai
 855                  */
 856                 snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i);
 857                 rdai[i].priv = priv;
 858
 859                 /*
 860                  *      init snd_soc_dai_driver
 861                  */
 862                 drv[i].name     = rdai[i].name;
 863                 drv[i].ops      = &rsnd_soc_dai_ops;
 864                 if (pmod) {
 865                         snprintf(rdai[i].playback.name, RSND_DAI_NAME_SIZE,
 866                                  "DAI%d Playback", i);
 867
 868                         drv[i].playback.rates           = RSND_RATES;
 869                         drv[i].playback.formats         = RSND_FMTS;
 870                         drv[i].playback.channels_min    = 2;
 871                         drv[i].playback.channels_max    = 2;
 872                         drv[i].playback.stream_name     = rdai[i].playback.name;
 873
 874                         rdai[i].playback.info = &info->dai_info[i].playback;
 875                         rdai[i].playback.rdai = rdai + i;
 876                         rsnd_path_init(priv, &rdai[i], &rdai[i].playback);
 877                 }
 878                 if (cmod) {
 879                         snprintf(rdai[i].capture.name, RSND_DAI_NAME_SIZE,
 880                                  "DAI%d Capture", i);
 881
 882                         drv[i].capture.rates            = RSND_RATES;
 883                         drv[i].capture.formats          = RSND_FMTS;
 884                         drv[i].capture.channels_min     = 2;
 885                         drv[i].capture.channels_max     = 2;
 886                         drv[i].capture.stream_name      = rdai[i].capture.name;
 887
 888                         rdai[i].capture.info = &info->dai_info[i].capture;
 889                         rdai[i].capture.rdai = rdai + i;
 890                         rsnd_path_init(priv, &rdai[i], &rdai[i].capture);
 891                 }
 892
 893                 dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name,
 894                         pmod ? "play"    : " -- ",
 895                         cmod ? "capture" : "  --   ");
 896         }
 897
 898         return 0;
 899 }
 900
 901 /*
 902  *              pcm ops
 903  */
 904 static struct snd_pcm_hardware rsnd_pcm_hardware = {
 905         .info =         SNDRV_PCM_INFO_INTERLEAVED      |
 906                         SNDRV_PCM_INFO_MMAP             |
 907                         SNDRV_PCM_INFO_MMAP_VALID,
 908         .buffer_bytes_max       = 64 * 1024,
 909         .period_bytes_min       = 32,
 910         .period_bytes_max       = 8192,
 911         .periods_min            = 1,
 912         .periods_max            = 32,
 913         .fifo_size              = 256,
 914 };
 915
 916 static int rsnd_pcm_open(struct snd_pcm_substream *substream)
 917 {
 918         struct snd_pcm_runtime *runtime = substream->runtime;
 919         int ret = 0;
 920
 921         snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
 922
 923         ret = snd_pcm_hw_constraint_integer(runtime,
 924                                             SNDRV_PCM_HW_PARAM_PERIODS);
 925
 926         return ret;
 927 }
 928
 929 static int rsnd_hw_params(struct snd_pcm_substream *substream,
 930                          struct snd_pcm_hw_params *hw_params)
 931 {
 932         struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
 933         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 934         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 935         int ret;
 936
 937         ret = rsnd_dai_call(hw_params, io, substream, hw_params);
 938         if (ret)
 939                 return ret;
 940
 941         return snd_pcm_lib_malloc_pages(substream,
 942                                         params_buffer_bytes(hw_params));
 943 }
 944
 945 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
 946 {
 947         struct snd_pcm_runtime *runtime = substream->runtime;
 948         struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
 949         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 950         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 951
 952         return bytes_to_frames(runtime, io->byte_pos);
 953 }
 954
 955 static struct snd_pcm_ops rsnd_pcm_ops = {
 956         .open           = rsnd_pcm_open,
 957         .ioctl          = snd_pcm_lib_ioctl,
 958         .hw_params      = rsnd_hw_params,
 959         .hw_free        = snd_pcm_lib_free_pages,
 960         .pointer        = rsnd_pointer,
 961 };
 962
 963 /*
 964  *              snd_kcontrol
 965  */
 966 #define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
 967 static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
 968                            struct snd_ctl_elem_info *uinfo)
 969 {
 970         struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
 971
 972         if (cfg->texts) {
 973                 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 974                 uinfo->count = cfg->size;
 975                 uinfo->value.enumerated.items = cfg->max;
 976                 if (uinfo->value.enumerated.item >= cfg->max)
 977                         uinfo->value.enumerated.item = cfg->max - 1;
 978                 strlcpy(uinfo->value.enumerated.name,
 979                         cfg->texts[uinfo->value.enumerated.item],
 980                         sizeof(uinfo->value.enumerated.name));
 981         } else {
 982                 uinfo->count = cfg->size;
 983                 uinfo->value.integer.min = 0;
 984                 uinfo->value.integer.max = cfg->max;
 985                 uinfo->type = (cfg->max == 1) ?
 986                         SNDRV_CTL_ELEM_TYPE_BOOLEAN :
 987                         SNDRV_CTL_ELEM_TYPE_INTEGER;
 988         }
 989
 990         return 0;
 991 }
 992
 993 static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
 994                           struct snd_ctl_elem_value *uc)
 995 {
 996         struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
 997         int i;
 998
 999         for (i = 0; i < cfg->size; i++)
1000                 if (cfg->texts)
1001                         uc->value.enumerated.item[i] = cfg->val[i];
1002                 else
1003                         uc->value.integer.value[i] = cfg->val[i];
1004
1005         return 0;
1006 }
1007
1008 static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
1009                           struct snd_ctl_elem_value *uc)
1010 {
1011         struct rsnd_mod *mod = snd_kcontrol_chip(kctrl);
1012         struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
1013         int i, change = 0;
1014
1015         for (i = 0; i < cfg->size; i++) {
1016                 if (cfg->texts) {
1017                         change |= (uc->value.enumerated.item[i] != cfg->val[i]);
1018                         cfg->val[i] = uc->value.enumerated.item[i];
1019                 } else {
1020                         change |= (uc->value.integer.value[i] != cfg->val[i]);
1021                         cfg->val[i] = uc->value.integer.value[i];
1022                 }
1023         }
1024
1025         if (change)
1026                 cfg->update(cfg->io, mod);
1027
1028         return change;
1029 }
1030
1031 static int __rsnd_kctrl_new(struct rsnd_mod *mod,
1032                             struct rsnd_dai_stream *io,
1033                             struct snd_soc_pcm_runtime *rtd,
1034                             const unsigned char *name,
1035                             struct rsnd_kctrl_cfg *cfg,
1036                             void (*update)(struct rsnd_dai_stream *io,
1037                                            struct rsnd_mod *mod))
1038 {
1039         struct snd_soc_card *soc_card = rtd->card;
1040         struct snd_card *card = rtd->card->snd_card;
1041         struct snd_kcontrol *kctrl;
1042         struct snd_kcontrol_new knew = {
1043                 .iface          = SNDRV_CTL_ELEM_IFACE_MIXER,
1044                 .name           = name,
1045                 .info           = rsnd_kctrl_info,
1046                 .index          = rtd - soc_card->rtd,
1047                 .get            = rsnd_kctrl_get,
1048                 .put            = rsnd_kctrl_put,
1049                 .private_value  = (unsigned long)cfg,
1050         };
1051         int ret;
1052
1053         kctrl = snd_ctl_new1(&knew, mod);
1054         if (!kctrl)
1055                 return -ENOMEM;
1056
1057         ret = snd_ctl_add(card, kctrl);
1058         if (ret < 0) {
1059                 snd_ctl_free_one(kctrl);
1060                 return ret;
1061         }
1062
1063         cfg->update = update;
1064         cfg->card = card;
1065         cfg->kctrl = kctrl;
1066         cfg->io = io;
1067
1068         return 0;
1069 }
1070
1071 void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg *cfg)
1072 {
1073         snd_ctl_remove(cfg->card, cfg->kctrl);
1074 }
1075
1076 int rsnd_kctrl_new_m(struct rsnd_mod *mod,
1077                      struct rsnd_dai_stream *io,
1078                      struct snd_soc_pcm_runtime *rtd,
1079                      const unsigned char *name,
1080                      void (*update)(struct rsnd_dai_stream *io,
1081                                     struct rsnd_mod *mod),
1082                      struct rsnd_kctrl_cfg_m *_cfg,
1083                      u32 max)
1084 {
1085         _cfg->cfg.max   = max;
1086         _cfg->cfg.size  = RSND_DVC_CHANNELS;
1087         _cfg->cfg.val   = _cfg->val;
1088         return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
1089 }
1090
1091 int rsnd_kctrl_new_s(struct rsnd_mod *mod,
1092                      struct rsnd_dai_stream *io,
1093                      struct snd_soc_pcm_runtime *rtd,
1094                      const unsigned char *name,
1095                      void (*update)(struct rsnd_dai_stream *io,
1096                                     struct rsnd_mod *mod),
1097                      struct rsnd_kctrl_cfg_s *_cfg,
1098                      u32 max)
1099 {
1100         _cfg->cfg.max   = max;
1101         _cfg->cfg.size  = 1;
1102         _cfg->cfg.val   = &_cfg->val;
1103         return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
1104 }
1105
1106 int rsnd_kctrl_new_e(struct rsnd_mod *mod,
1107                      struct rsnd_dai_stream *io,
1108                      struct snd_soc_pcm_runtime *rtd,
1109                      const unsigned char *name,
1110                      struct rsnd_kctrl_cfg_s *_cfg,
1111                      void (*update)(struct rsnd_dai_stream *io,
1112                                     struct rsnd_mod *mod),
1113                      const char * const *texts,
1114                      u32 max)
1115 {
1116         _cfg->cfg.max   = max;
1117         _cfg->cfg.size  = 1;
1118         _cfg->cfg.val   = &_cfg->val;
1119         _cfg->cfg.texts = texts;
1120         return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
1121 }
1122
1123 /*
1124  *              snd_soc_platform
1125  */
1126
1127 #define PREALLOC_BUFFER         (32 * 1024)
1128 #define PREALLOC_BUFFER_MAX     (32 * 1024)
1129
1130 static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
1131 {
1132         struct snd_soc_dai *dai = rtd->cpu_dai;
1133         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1134         int ret;
1135
1136         ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
1137         if (ret)
1138                 return ret;
1139
1140         ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
1141         if (ret)
1142                 return ret;
1143
1144         return snd_pcm_lib_preallocate_pages_for_all(
1145                 rtd->pcm,
1146                 SNDRV_DMA_TYPE_DEV,
1147                 rtd->card->snd_card->dev,
1148                 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1149 }
1150
1151 static struct snd_soc_platform_driver rsnd_soc_platform = {
1152         .ops            = &rsnd_pcm_ops,
1153         .pcm_new        = rsnd_pcm_new,
1154 };
1155
1156 static const struct snd_soc_component_driver rsnd_soc_component = {
1157         .name           = "rsnd",
1158 };
1159
1160 static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1161                                        struct rsnd_dai_stream *io)
1162 {
1163         int ret;
1164
1165         ret = rsnd_dai_call(probe, io, priv);
1166         if (ret == -EAGAIN) {
1167                 /*
1168                  * Fallback to PIO mode
1169                  */
1170
1171                 /*
1172                  * call "remove" for SSI/SRC/DVC
1173                  * SSI will be switch to PIO mode if it was DMA mode
1174                  * see
1175                  *      rsnd_dma_init()
1176                  *      rsnd_ssi_fallback()
1177                  */
1178                 rsnd_dai_call(remove, io, priv);
1179
1180                 /*
1181                  * remove SRC/DVC from DAI,
1182                  */
1183                 rsnd_path_remove(priv, io, src);
1184                 rsnd_path_remove(priv, io, dvc);
1185
1186                 /*
1187                  * fallback
1188                  */
1189                 rsnd_dai_call(fallback, io, priv);
1190
1191                 /*
1192                  * retry to "probe".
1193                  * DAI has SSI which is PIO mode only now.
1194                  */
1195                 ret = rsnd_dai_call(probe, io, priv);
1196         }
1197
1198         return ret;
1199 }
1200
1201 /*
1202  *      rsnd probe
1203  */
1204 static int rsnd_probe(struct platform_device *pdev)
1205 {
1206         struct rcar_snd_info *info;
1207         struct rsnd_priv *priv;
1208         struct device *dev = &pdev->dev;
1209         struct rsnd_dai *rdai;
1210         const struct of_device_id *of_id = of_match_device(rsnd_of_match, dev);
1211         const struct rsnd_of_data *of_data;
1212         int (*probe_func[])(struct platform_device *pdev,
1213                             const struct rsnd_of_data *of_data,
1214                             struct rsnd_priv *priv) = {
1215                 rsnd_gen_probe,
1216                 rsnd_dma_probe,
1217                 rsnd_ssi_probe,
1218                 rsnd_src_probe,
1219                 rsnd_ctu_probe,
1220                 rsnd_mix_probe,
1221                 rsnd_dvc_probe,
1222                 rsnd_adg_probe,
1223                 rsnd_dai_probe,
1224         };
1225         int ret, i;
1226
1227         info = NULL;
1228         of_data = NULL;
1229         if (of_id) {
1230                 info = devm_kzalloc(&pdev->dev,
1231                                     sizeof(struct rcar_snd_info), GFP_KERNEL);
1232                 of_data = of_id->data;
1233         } else {
1234                 info = pdev->dev.platform_data;
1235         }
1236
1237         if (!info) {
1238                 dev_err(dev, "driver needs R-Car sound information\n");
1239                 return -ENODEV;
1240         }
1241
1242         /*
1243          *      init priv data
1244          */
1245         priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1246         if (!priv) {
1247                 dev_err(dev, "priv allocate failed\n");
1248                 return -ENODEV;
1249         }
1250
1251         priv->pdev      = pdev;
1252         priv->info      = info;
1253         spin_lock_init(&priv->lock);
1254
1255         /*
1256          *      init each module
1257          */
1258         for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
1259                 ret = probe_func[i](pdev, of_data, priv);
1260                 if (ret)
1261                         return ret;
1262         }
1263
1264         for_each_rsnd_dai(rdai, priv, i) {
1265                 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
1266                 if (ret)
1267                         goto exit_snd_probe;
1268
1269                 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
1270                 if (ret)
1271                         goto exit_snd_probe;
1272         }
1273
1274         dev_set_drvdata(dev, priv);
1275
1276         /*
1277          *      asoc register
1278          */
1279         ret = snd_soc_register_platform(dev, &rsnd_soc_platform);
1280         if (ret < 0) {
1281                 dev_err(dev, "cannot snd soc register\n");
1282                 return ret;
1283         }
1284
1285         ret = snd_soc_register_component(dev, &rsnd_soc_component,
1286                                          priv->daidrv, rsnd_rdai_nr(priv));
1287         if (ret < 0) {
1288                 dev_err(dev, "cannot snd dai register\n");
1289                 goto exit_snd_soc;
1290         }
1291
1292         pm_runtime_enable(dev);
1293
1294         dev_info(dev, "probed\n");
1295         return ret;
1296
1297 exit_snd_soc:
1298         snd_soc_unregister_platform(dev);
1299 exit_snd_probe:
1300         for_each_rsnd_dai(rdai, priv, i) {
1301                 rsnd_dai_call(remove, &rdai->playback, priv);
1302                 rsnd_dai_call(remove, &rdai->capture, priv);
1303         }
1304
1305         return ret;
1306 }
1307
1308 static int rsnd_remove(struct platform_device *pdev)
1309 {
1310         struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
1311         struct rsnd_dai *rdai;
1312         void (*remove_func[])(struct platform_device *pdev,
1313                               struct rsnd_priv *priv) = {
1314                 rsnd_ssi_remove,
1315                 rsnd_src_remove,
1316                 rsnd_ctu_remove,
1317                 rsnd_mix_remove,
1318                 rsnd_dvc_remove,
1319         };
1320         int ret = 0, i;
1321
1322         pm_runtime_disable(&pdev->dev);
1323
1324         for_each_rsnd_dai(rdai, priv, i) {
1325                 ret |= rsnd_dai_call(remove, &rdai->playback, priv);
1326                 ret |= rsnd_dai_call(remove, &rdai->capture, priv);
1327         }
1328
1329         for (i = 0; i < ARRAY_SIZE(remove_func); i++)
1330                 remove_func[i](pdev, priv);
1331
1332         snd_soc_unregister_component(&pdev->dev);
1333         snd_soc_unregister_platform(&pdev->dev);
1334
1335         return ret;
1336 }
1337
1338 static struct platform_driver rsnd_driver = {
1339         .driver = {
1340                 .name   = "rcar_sound",
1341                 .of_match_table = rsnd_of_match,
1342         },
1343         .probe          = rsnd_probe,
1344         .remove         = rsnd_remove,
1345 };
1346 module_platform_driver(rsnd_driver);
1347
1348 MODULE_LICENSE("GPL");
1349 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1350 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1351 MODULE_ALIAS("platform:rcar-pcm-audio");