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         { .compatible = "renesas,rcar_sound-gen3", .data = &rsnd_of_data_gen2 }, /* gen2 compatible */
 114         {},
 115 };
 116 MODULE_DEVICE_TABLE(of, rsnd_of_match);
 117
 118 /*
 119  *      rsnd_platform functions
 120  */
 121 #define rsnd_platform_call(priv, dai, func, param...)   \
 122         (!(priv->info->func) ? 0 :              \
 123          priv->info->func(param))
 124
 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
 130 void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
 131 {
 132         if (mod->type != type) {
 133                 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 134                 struct device *dev = rsnd_priv_to_dev(priv);
 135
 136                 dev_warn(dev, "%s[%d] is not your expected module\n",
 137                          rsnd_mod_name(mod), rsnd_mod_id(mod));
 138         }
 139 }
 140
 141 /*
 142  *      rsnd_mod functions
 143  */
 144 char *rsnd_mod_name(struct rsnd_mod *mod)
 145 {
 146         if (!mod || !mod->ops)
 147                 return "unknown";
 148
 149         return mod->ops->name;
 150 }
 151
 152 struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
 153                                   struct rsnd_mod *mod)
 154 {
 155         if (!mod || !mod->ops || !mod->ops->dma_req)
 156                 return NULL;
 157
 158         return mod->ops->dma_req(io, mod);
 159 }
 160
 161 int rsnd_mod_init(struct rsnd_priv *priv,
 162                   struct rsnd_mod *mod,
 163                    struct rsnd_mod_ops *ops,
 164                    struct clk *clk,
 165                    enum rsnd_mod_type type,
 166                    int id)
 167 {
 168         int ret = clk_prepare(clk);
 169
 170         if (ret)
 171                 return ret;
 172
 173         mod->id         = id;
 174         mod->ops        = ops;
 175         mod->type       = type;
 176         mod->clk        = clk;
 177         mod->priv       = priv;
 178
 179         return ret;
 180 }
 181
 182 void rsnd_mod_quit(struct rsnd_mod *mod)
 183 {
 184         if (mod->clk)
 185                 clk_unprepare(mod->clk);
 186 }
 187
 188 void rsnd_mod_interrupt(struct rsnd_mod *mod,
 189                         void (*callback)(struct rsnd_mod *mod,
 190                                          struct rsnd_dai_stream *io))
 191 {
 192         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 193         struct rsnd_dai_stream *io;
 194         struct rsnd_dai *rdai;
 195         int i, j;
 196
 197         for_each_rsnd_dai(rdai, priv, j) {
 198
 199                 for (i = 0; i < RSND_MOD_MAX; i++) {
 200                         io = &rdai->playback;
 201                         if (mod == io->mod[i])
 202                                 callback(mod, io);
 203
 204                         io = &rdai->capture;
 205                         if (mod == io->mod[i])
 206                                 callback(mod, io);
 207                 }
 208         }
 209 }
 210
 211 int rsnd_io_is_working(struct rsnd_dai_stream *io)
 212 {
 213         /* see rsnd_dai_stream_init/quit() */
 214         return !!io->substream;
 215 }
 216
 217 /*
 218  *      ADINR function
 219  */
 220 u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 221 {
 222         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 223         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 224         struct device *dev = rsnd_priv_to_dev(priv);
 225         u32 adinr = runtime->channels;
 226
 227         switch (runtime->sample_bits) {
 228         case 16:
 229                 adinr |= (8 << 16);
 230                 break;
 231         case 32:
 232                 adinr |= (0 << 16);
 233                 break;
 234         default:
 235                 dev_warn(dev, "not supported sample bits\n");
 236                 return 0;
 237         }
 238
 239         return adinr;
 240 }
 241
 242 u32 rsnd_get_adinr_chan(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 243 {
 244         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
 245         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 246         struct device *dev = rsnd_priv_to_dev(priv);
 247         u32 chan = runtime->channels;
 248
 249         switch (chan) {
 250         case 1:
 251         case 2:
 252         case 4:
 253         case 6:
 254         case 8:
 255                 break;
 256         default:
 257                 dev_warn(dev, "not supported channel\n");
 258                 chan = 0;
 259                 break;
 260         }
 261
 262         return chan;
 263 }
 264
 265 /*
 266  *      DALIGN function
 267  */
 268 u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
 269 {
 270         struct rsnd_mod *src = rsnd_io_to_mod_src(io);
 271         struct rsnd_mod *ssi = rsnd_io_to_mod_ssi(io);
 272         struct rsnd_mod *target = src ? src : ssi;
 273         struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
 274         u32 val = 0x76543210;
 275         u32 mask = ~0;
 276
 277         mask <<= runtime->channels * 4;
 278         val = val & mask;
 279
 280         switch (runtime->sample_bits) {
 281         case 16:
 282                 val |= 0x67452301 & ~mask;
 283                 break;
 284         case 32:
 285                 val |= 0x76543210 & ~mask;
 286                 break;
 287         }
 288
 289         /*
 290          * exchange channeles on SRC if possible,
 291          * otherwise, R/L volume settings on DVC
 292          * changes inverted channels
 293          */
 294         if (mod == target)
 295                 return val;
 296         else
 297                 return 0x76543210;
 298 }
 299
 300 /*
 301  *      rsnd_dai functions
 302  */
 303 #define rsnd_mod_call(mod, io, func, param...)                  \
 304 ({                                                              \
 305         struct rsnd_priv *priv = rsnd_mod_to_priv(mod);         \
 306         struct device *dev = rsnd_priv_to_dev(priv);            \
 307         u32 mask = 0xF << __rsnd_mod_shift_##func;                      \
 308         u8 val  = (mod->status >> __rsnd_mod_shift_##func) & 0xF;       \
 309         u8 add  = ((val + __rsnd_mod_add_##func) & 0xF);                \
 310         int ret = 0;                                                    \
 311         int call = (val == __rsnd_mod_call_##func) && (mod)->ops->func; \
 312         mod->status = (mod->status & ~mask) +                           \
 313                 (add << __rsnd_mod_shift_##func);                       \
 314         dev_dbg(dev, "%s[%d]\t0x%08x %s\n",                             \
 315                 rsnd_mod_name(mod), rsnd_mod_id(mod),                   \
 316                 mod->status, call ? #func : "");                        \
 317         if (call)                                                       \
 318                 ret = (mod)->ops->func(mod, io, param);                 \
 319         ret;                                                            \
 320 })
 321
 322 #define rsnd_dai_call(fn, io, param...)                         \
 323 ({                                                              \
 324         struct rsnd_mod *mod;                                   \
 325         int ret = 0, i;                                         \
 326         for (i = 0; i < RSND_MOD_MAX; i++) {                    \
 327                 mod = (io)->mod[i];                             \
 328                 if (!mod)                                       \
 329                         continue;                               \
 330                 ret |= rsnd_mod_call(mod, io, fn, param);       \
 331         }                                                       \
 332         ret;                                                    \
 333 })
 334
 335 static int rsnd_dai_connect(struct rsnd_mod *mod,
 336                             struct rsnd_dai_stream *io)
 337 {
 338         struct rsnd_priv *priv;
 339         struct device *dev;
 340
 341         if (!mod)
 342                 return -EIO;
 343
 344         priv = rsnd_mod_to_priv(mod);
 345         dev = rsnd_priv_to_dev(priv);
 346
 347         io->mod[mod->type] = mod;
 348
 349         dev_dbg(dev, "%s[%d] is connected to io (%s)\n",
 350                 rsnd_mod_name(mod), rsnd_mod_id(mod),
 351                 rsnd_io_is_play(io) ? "Playback" : "Capture");
 352
 353         return 0;
 354 }
 355
 356 static void rsnd_dai_disconnect(struct rsnd_mod *mod,
 357                                 struct rsnd_dai_stream *io)
 358 {
 359         io->mod[mod->type] = NULL;
 360 }
 361
 362 struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
 363 {
 364         if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
 365                 return NULL;
 366
 367         return priv->rdai + id;
 368 }
 369
 370 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
 371 static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
 372 {
 373         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
 374
 375         return rsnd_rdai_get(priv, dai->id);
 376 }
 377
 378 /*
 379  *      rsnd_soc_dai functions
 380  */
 381 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional)
 382 {
 383         struct snd_pcm_substream *substream = io->substream;
 384         struct snd_pcm_runtime *runtime = substream->runtime;
 385         int pos = io->byte_pos + additional;
 386
 387         pos %= (runtime->periods * io->byte_per_period);
 388
 389         return pos;
 390 }
 391
 392 bool rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte)
 393 {
 394         io->byte_pos += byte;
 395
 396         if (io->byte_pos >= io->next_period_byte) {
 397                 struct snd_pcm_substream *substream = io->substream;
 398                 struct snd_pcm_runtime *runtime = substream->runtime;
 399
 400                 io->period_pos++;
 401                 io->next_period_byte += io->byte_per_period;
 402
 403                 if (io->period_pos >= runtime->periods) {
 404                         io->byte_pos = 0;
 405                         io->period_pos = 0;
 406                         io->next_period_byte = io->byte_per_period;
 407                 }
 408
 409                 return true;
 410         }
 411
 412         return false;
 413 }
 414
 415 void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
 416 {
 417         struct snd_pcm_substream *substream = io->substream;
 418
 419         /*
 420          * this function should be called...
 421          *
 422          * - if rsnd_dai_pointer_update() returns true
 423          * - without spin lock
 424          */
 425
 426         snd_pcm_period_elapsed(substream);
 427 }
 428
 429 static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
 430                                 struct snd_pcm_substream *substream)
 431 {
 432         struct snd_pcm_runtime *runtime = substream->runtime;
 433
 434         io->substream           = substream;
 435         io->byte_pos            = 0;
 436         io->period_pos          = 0;
 437         io->byte_per_period     = runtime->period_size *
 438                                   runtime->channels *
 439                                   samples_to_bytes(runtime, 1);
 440         io->next_period_byte    = io->byte_per_period;
 441 }
 442
 443 static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
 444 {
 445         io->substream           = NULL;
 446 }
 447
 448 static
 449 struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
 450 {
 451         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 452
 453         return  rtd->cpu_dai;
 454 }
 455
 456 static
 457 struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
 458                                         struct snd_pcm_substream *substream)
 459 {
 460         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
 461                 return &rdai->playback;
 462         else
 463                 return &rdai->capture;
 464 }
 465
 466 static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
 467                             struct snd_soc_dai *dai)
 468 {
 469         struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
 470         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 471         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 472         int ssi_id = rsnd_mod_id(rsnd_io_to_mod_ssi(io));
 473         int ret;
 474         unsigned long flags;
 475
 476         spin_lock_irqsave(&priv->lock, flags);
 477
 478         switch (cmd) {
 479         case SNDRV_PCM_TRIGGER_START:
 480                 rsnd_dai_stream_init(io, substream);
 481
 482                 ret = rsnd_platform_call(priv, dai, start, ssi_id);
 483                 if (ret < 0)
 484                         goto dai_trigger_end;
 485
 486                 ret = rsnd_dai_call(init, io, priv);
 487                 if (ret < 0)
 488                         goto dai_trigger_end;
 489
 490                 ret = rsnd_dai_call(start, io, priv);
 491                 if (ret < 0)
 492                         goto dai_trigger_end;
 493                 break;
 494         case SNDRV_PCM_TRIGGER_STOP:
 495                 ret = rsnd_dai_call(stop, io, priv);
 496
 497                 ret |= rsnd_dai_call(quit, io, priv);
 498
 499                 ret |= rsnd_platform_call(priv, dai, stop, ssi_id);
 500
 501                 rsnd_dai_stream_quit(io);
 502                 break;
 503         default:
 504                 ret = -EINVAL;
 505         }
 506
 507 dai_trigger_end:
 508         spin_unlock_irqrestore(&priv->lock, flags);
 509
 510         return ret;
 511 }
 512
 513 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 514 {
 515         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 516
 517         /* set master/slave audio interface */
 518         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 519         case SND_SOC_DAIFMT_CBM_CFM:
 520                 rdai->clk_master = 0;
 521                 break;
 522         case SND_SOC_DAIFMT_CBS_CFS:
 523                 rdai->clk_master = 1; /* codec is slave, cpu is master */
 524                 break;
 525         default:
 526                 return -EINVAL;
 527         }
 528
 529         /* set format */
 530         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 531         case SND_SOC_DAIFMT_I2S:
 532                 rdai->sys_delay = 0;
 533                 rdai->data_alignment = 0;
 534                 rdai->frm_clk_inv = 0;
 535                 break;
 536         case SND_SOC_DAIFMT_LEFT_J:
 537                 rdai->sys_delay = 1;
 538                 rdai->data_alignment = 0;
 539                 rdai->frm_clk_inv = 1;
 540                 break;
 541         case SND_SOC_DAIFMT_RIGHT_J:
 542                 rdai->sys_delay = 1;
 543                 rdai->data_alignment = 1;
 544                 rdai->frm_clk_inv = 1;
 545                 break;
 546         }
 547
 548         /* set clock inversion */
 549         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 550         case SND_SOC_DAIFMT_NB_IF:
 551                 rdai->bit_clk_inv =  rdai->bit_clk_inv;
 552                 rdai->frm_clk_inv = !rdai->frm_clk_inv;
 553                 break;
 554         case SND_SOC_DAIFMT_IB_NF:
 555                 rdai->bit_clk_inv = !rdai->bit_clk_inv;
 556                 rdai->frm_clk_inv =  rdai->frm_clk_inv;
 557                 break;
 558         case SND_SOC_DAIFMT_IB_IF:
 559                 rdai->bit_clk_inv = !rdai->bit_clk_inv;
 560                 rdai->frm_clk_inv = !rdai->frm_clk_inv;
 561                 break;
 562         case SND_SOC_DAIFMT_NB_NF:
 563         default:
 564                 break;
 565         }
 566
 567         return 0;
 568 }
 569
 570 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
 571         .trigger        = rsnd_soc_dai_trigger,
 572         .set_fmt        = rsnd_soc_dai_set_fmt,
 573 };
 574
 575 #define rsnd_path_add(priv, io, type)                           \
 576 ({                                                              \
 577         struct rsnd_mod *mod;                                   \
 578         int ret = 0;                                            \
 579         int id = -1;                                            \
 580                                                                 \
 581         if (rsnd_is_enable_path(io, type)) {                    \
 582                 id = rsnd_info_id(priv, io, type);              \
 583                 if (id >= 0) {                                  \
 584                         mod = rsnd_##type##_mod_get(priv, id);  \
 585                         ret = rsnd_dai_connect(mod, io);        \
 586                 }                                               \
 587         }                                                       \
 588         ret;                                                    \
 589 })
 590
 591 #define rsnd_path_remove(priv, io, type)                        \
 592 {                                                               \
 593         struct rsnd_mod *mod;                                   \
 594         int id = -1;                                            \
 595                                                                 \
 596         if (rsnd_is_enable_path(io, type)) {                    \
 597                 id = rsnd_info_id(priv, io, type);              \
 598                 if (id >= 0) {                                  \
 599                         mod = rsnd_##type##_mod_get(priv, id);  \
 600                         rsnd_dai_disconnect(mod, io);           \
 601                 }                                               \
 602         }                                                       \
 603 }
 604
 605 void rsnd_path_parse(struct rsnd_priv *priv,
 606                      struct rsnd_dai_stream *io)
 607 {
 608         struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
 609         struct rsnd_mod *mix = rsnd_io_to_mod_mix(io);
 610         struct rsnd_mod *src = rsnd_io_to_mod_src(io);
 611         struct rsnd_mod *cmd;
 612         struct device *dev = rsnd_priv_to_dev(priv);
 613         u32 data;
 614
 615         /* Gen1 is not supported */
 616         if (rsnd_is_gen1(priv))
 617                 return;
 618
 619         if (!mix && !dvc)
 620                 return;
 621
 622         if (mix) {
 623                 struct rsnd_dai *rdai;
 624                 int i;
 625                 u32 path[] = {
 626                         [0] = 0,
 627                         [1] = 1 << 0,
 628                         [2] = 0,
 629                         [3] = 0,
 630                         [4] = 0,
 631                         [5] = 1 << 8
 632                 };
 633
 634                 /*
 635                  * it is assuming that integrater is well understanding about
 636                  * data path. Here doesn't check impossible connection,
 637                  * like src2 + src5
 638                  */
 639                 data = 0;
 640                 for_each_rsnd_dai(rdai, priv, i) {
 641                         io = &rdai->playback;
 642                         if (mix == rsnd_io_to_mod_mix(io))
 643                                 data |= path[rsnd_mod_id(src)];
 644
 645                         io = &rdai->capture;
 646                         if (mix == rsnd_io_to_mod_mix(io))
 647                                 data |= path[rsnd_mod_id(src)];
 648                 }
 649
 650                 /*
 651                  * We can't use ctu = rsnd_io_ctu() here.
 652                  * Since, ID of dvc/mix are 0 or 1 (= same as CMD number)
 653                  * but ctu IDs are 0 - 7 (= CTU00 - CTU13)
 654                  */
 655                 cmd = mix;
 656         } else {
 657                 u32 path[] = {
 658                         [0] = 0x30000,
 659                         [1] = 0x30001,
 660                         [2] = 0x40000,
 661                         [3] = 0x10000,
 662                         [4] = 0x20000,
 663                         [5] = 0x40100
 664                 };
 665
 666                 data = path[rsnd_mod_id(src)];
 667
 668                 cmd = dvc;
 669         }
 670
 671         dev_dbg(dev, "ctu/mix path = 0x%08x", data);
 672
 673         rsnd_mod_write(cmd, CMD_ROUTE_SLCT, data);
 674
 675         rsnd_mod_write(cmd, CMD_CTRL, 0x10);
 676 }
 677
 678 static int rsnd_path_init(struct rsnd_priv *priv,
 679                           struct rsnd_dai *rdai,
 680                           struct rsnd_dai_stream *io)
 681 {
 682         int ret;
 683
 684         /*
 685          * Gen1 is created by SRU/SSI, and this SRU is base module of
 686          * Gen2's SCU/SSIU/SSI. (Gen2 SCU/SSIU came from SRU)
 687          *
 688          * Easy image is..
 689          *      Gen1 SRU = Gen2 SCU + SSIU + etc
 690          *
 691          * Gen2 SCU path is very flexible, but, Gen1 SRU (SCU parts) is
 692          * using fixed path.
 693          */
 694
 695         /* SSI */
 696         ret = rsnd_path_add(priv, io, ssi);
 697         if (ret < 0)
 698                 return ret;
 699
 700         /* SRC */
 701         ret = rsnd_path_add(priv, io, src);
 702         if (ret < 0)
 703                 return ret;
 704
 705         /* CTU */
 706         ret = rsnd_path_add(priv, io, ctu);
 707         if (ret < 0)
 708                 return ret;
 709
 710         /* MIX */
 711         ret = rsnd_path_add(priv, io, mix);
 712         if (ret < 0)
 713                 return ret;
 714
 715         /* DVC */
 716         ret = rsnd_path_add(priv, io, dvc);
 717         if (ret < 0)
 718                 return ret;
 719
 720         return ret;
 721 }
 722
 723 static void rsnd_of_parse_dai(struct platform_device *pdev,
 724                               const struct rsnd_of_data *of_data,
 725                               struct rsnd_priv *priv)
 726 {
 727         struct device_node *dai_node,   *dai_np;
 728         struct device_node *ssi_node,   *ssi_np;
 729         struct device_node *src_node,   *src_np;
 730         struct device_node *ctu_node,   *ctu_np;
 731         struct device_node *mix_node,   *mix_np;
 732         struct device_node *dvc_node,   *dvc_np;
 733         struct device_node *playback, *capture;
 734         struct rsnd_dai_platform_info *dai_info;
 735         struct rcar_snd_info *info = rsnd_priv_to_info(priv);
 736         struct device *dev = &pdev->dev;
 737         int nr, i;
 738         int dai_i, ssi_i, src_i, ctu_i, mix_i, dvc_i;
 739
 740         if (!of_data)
 741                 return;
 742
 743         dai_node = of_get_child_by_name(dev->of_node, "rcar_sound,dai");
 744         if (!dai_node)
 745                 return;
 746
 747         nr = of_get_child_count(dai_node);
 748         if (!nr)
 749                 return;
 750
 751         dai_info = devm_kzalloc(dev,
 752                                 sizeof(struct rsnd_dai_platform_info) * nr,
 753                                 GFP_KERNEL);
 754         if (!dai_info) {
 755                 dev_err(dev, "dai info allocation error\n");
 756                 return;
 757         }
 758
 759         info->dai_info_nr       = nr;
 760         info->dai_info          = dai_info;
 761
 762         ssi_node = of_get_child_by_name(dev->of_node, "rcar_sound,ssi");
 763         src_node = of_get_child_by_name(dev->of_node, "rcar_sound,src");
 764         ctu_node = of_get_child_by_name(dev->of_node, "rcar_sound,ctu");
 765         mix_node = of_get_child_by_name(dev->of_node, "rcar_sound,mix");
 766         dvc_node = of_get_child_by_name(dev->of_node, "rcar_sound,dvc");
 767
 768 #define mod_parse(name)                                                 \
 769 if (name##_node) {                                                      \
 770         struct rsnd_##name##_platform_info *name##_info;                \
 771                                                                         \
 772         name##_i = 0;                                                   \
 773         for_each_child_of_node(name##_node, name##_np) {                \
 774                 name##_info = info->name##_info + name##_i;             \
 775                                                                         \
 776                 if (name##_np == playback)                              \
 777                         dai_info->playback.name = name##_info;          \
 778                 if (name##_np == capture)                               \
 779                         dai_info->capture.name = name##_info;           \
 780                                                                         \
 781                 name##_i++;                                             \
 782         }                                                               \
 783 }
 784
 785         /*
 786          * parse all dai
 787          */
 788         dai_i = 0;
 789         for_each_child_of_node(dai_node, dai_np) {
 790                 dai_info = info->dai_info + dai_i;
 791
 792                 for (i = 0;; i++) {
 793
 794                         playback = of_parse_phandle(dai_np, "playback", i);
 795                         capture  = of_parse_phandle(dai_np, "capture", i);
 796
 797                         if (!playback && !capture)
 798                                 break;
 799
 800                         mod_parse(ssi);
 801                         mod_parse(src);
 802                         mod_parse(ctu);
 803                         mod_parse(mix);
 804                         mod_parse(dvc);
 805
 806                         of_node_put(playback);
 807                         of_node_put(capture);
 808                 }
 809
 810                 dai_i++;
 811         }
 812 }
 813
 814 static int rsnd_dai_probe(struct platform_device *pdev,
 815                           const struct rsnd_of_data *of_data,
 816                           struct rsnd_priv *priv)
 817 {
 818         struct snd_soc_dai_driver *drv;
 819         struct rcar_snd_info *info = rsnd_priv_to_info(priv);
 820         struct rsnd_dai *rdai;
 821         struct rsnd_ssi_platform_info *pmod, *cmod;
 822         struct device *dev = rsnd_priv_to_dev(priv);
 823         int dai_nr;
 824         int i;
 825
 826         rsnd_of_parse_dai(pdev, of_data, priv);
 827
 828         dai_nr = info->dai_info_nr;
 829         if (!dai_nr) {
 830                 dev_err(dev, "no dai\n");
 831                 return -EIO;
 832         }
 833
 834         drv  = devm_kzalloc(dev, sizeof(*drv)  * dai_nr, GFP_KERNEL);
 835         rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL);
 836         if (!drv || !rdai) {
 837                 dev_err(dev, "dai allocate failed\n");
 838                 return -ENOMEM;
 839         }
 840
 841         priv->rdai_nr   = dai_nr;
 842         priv->daidrv    = drv;
 843         priv->rdai      = rdai;
 844
 845         for (i = 0; i < dai_nr; i++) {
 846
 847                 pmod = info->dai_info[i].playback.ssi;
 848                 cmod = info->dai_info[i].capture.ssi;
 849
 850                 /*
 851                  *      init rsnd_dai
 852                  */
 853                 snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i);
 854                 rdai[i].priv = priv;
 855
 856                 /*
 857                  *      init snd_soc_dai_driver
 858                  */
 859                 drv[i].name     = rdai[i].name;
 860                 drv[i].ops      = &rsnd_soc_dai_ops;
 861                 if (pmod) {
 862                         snprintf(rdai[i].playback.name, RSND_DAI_NAME_SIZE,
 863                                  "DAI%d Playback", i);
 864
 865                         drv[i].playback.rates           = RSND_RATES;
 866                         drv[i].playback.formats         = RSND_FMTS;
 867                         drv[i].playback.channels_min    = 2;
 868                         drv[i].playback.channels_max    = 2;
 869                         drv[i].playback.stream_name     = rdai[i].playback.name;
 870
 871                         rdai[i].playback.info = &info->dai_info[i].playback;
 872                         rdai[i].playback.rdai = rdai + i;
 873                         rsnd_path_init(priv, &rdai[i], &rdai[i].playback);
 874                 }
 875                 if (cmod) {
 876                         snprintf(rdai[i].capture.name, RSND_DAI_NAME_SIZE,
 877                                  "DAI%d Capture", i);
 878
 879                         drv[i].capture.rates            = RSND_RATES;
 880                         drv[i].capture.formats          = RSND_FMTS;
 881                         drv[i].capture.channels_min     = 2;
 882                         drv[i].capture.channels_max     = 2;
 883                         drv[i].capture.stream_name      = rdai[i].capture.name;
 884
 885                         rdai[i].capture.info = &info->dai_info[i].capture;
 886                         rdai[i].capture.rdai = rdai + i;
 887                         rsnd_path_init(priv, &rdai[i], &rdai[i].capture);
 888                 }
 889
 890                 dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name,
 891                         pmod ? "play"    : " -- ",
 892                         cmod ? "capture" : "  --   ");
 893         }
 894
 895         return 0;
 896 }
 897
 898 /*
 899  *              pcm ops
 900  */
 901 static struct snd_pcm_hardware rsnd_pcm_hardware = {
 902         .info =         SNDRV_PCM_INFO_INTERLEAVED      |
 903                         SNDRV_PCM_INFO_MMAP             |
 904                         SNDRV_PCM_INFO_MMAP_VALID,
 905         .buffer_bytes_max       = 64 * 1024,
 906         .period_bytes_min       = 32,
 907         .period_bytes_max       = 8192,
 908         .periods_min            = 1,
 909         .periods_max            = 32,
 910         .fifo_size              = 256,
 911 };
 912
 913 static int rsnd_pcm_open(struct snd_pcm_substream *substream)
 914 {
 915         struct snd_pcm_runtime *runtime = substream->runtime;
 916         int ret = 0;
 917
 918         snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
 919
 920         ret = snd_pcm_hw_constraint_integer(runtime,
 921                                             SNDRV_PCM_HW_PARAM_PERIODS);
 922
 923         return ret;
 924 }
 925
 926 static int rsnd_hw_params(struct snd_pcm_substream *substream,
 927                          struct snd_pcm_hw_params *hw_params)
 928 {
 929         struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
 930         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 931         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 932         int ret;
 933
 934         ret = rsnd_dai_call(hw_params, io, substream, hw_params);
 935         if (ret)
 936                 return ret;
 937
 938         return snd_pcm_lib_malloc_pages(substream,
 939                                         params_buffer_bytes(hw_params));
 940 }
 941
 942 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
 943 {
 944         struct snd_pcm_runtime *runtime = substream->runtime;
 945         struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
 946         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
 947         struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
 948
 949         return bytes_to_frames(runtime, io->byte_pos);
 950 }
 951
 952 static struct snd_pcm_ops rsnd_pcm_ops = {
 953         .open           = rsnd_pcm_open,
 954         .ioctl          = snd_pcm_lib_ioctl,
 955         .hw_params      = rsnd_hw_params,
 956         .hw_free        = snd_pcm_lib_free_pages,
 957         .pointer        = rsnd_pointer,
 958 };
 959
 960 /*
 961  *              snd_kcontrol
 962  */
 963 #define kcontrol_to_cfg(kctrl) ((struct rsnd_kctrl_cfg *)kctrl->private_value)
 964 static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
 965                            struct snd_ctl_elem_info *uinfo)
 966 {
 967         struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
 968
 969         if (cfg->texts) {
 970                 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 971                 uinfo->count = cfg->size;
 972                 uinfo->value.enumerated.items = cfg->max;
 973                 if (uinfo->value.enumerated.item >= cfg->max)
 974                         uinfo->value.enumerated.item = cfg->max - 1;
 975                 strlcpy(uinfo->value.enumerated.name,
 976                         cfg->texts[uinfo->value.enumerated.item],
 977                         sizeof(uinfo->value.enumerated.name));
 978         } else {
 979                 uinfo->count = cfg->size;
 980                 uinfo->value.integer.min = 0;
 981                 uinfo->value.integer.max = cfg->max;
 982                 uinfo->type = (cfg->max == 1) ?
 983                         SNDRV_CTL_ELEM_TYPE_BOOLEAN :
 984                         SNDRV_CTL_ELEM_TYPE_INTEGER;
 985         }
 986
 987         return 0;
 988 }
 989
 990 static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
 991                           struct snd_ctl_elem_value *uc)
 992 {
 993         struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
 994         int i;
 995
 996         for (i = 0; i < cfg->size; i++)
 997                 if (cfg->texts)
 998                         uc->value.enumerated.item[i] = cfg->val[i];
 999                 else
1000                         uc->value.integer.value[i] = cfg->val[i];
1001
1002         return 0;
1003 }
1004
1005 static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
1006                           struct snd_ctl_elem_value *uc)
1007 {
1008         struct rsnd_mod *mod = snd_kcontrol_chip(kctrl);
1009         struct rsnd_kctrl_cfg *cfg = kcontrol_to_cfg(kctrl);
1010         int i, change = 0;
1011
1012         for (i = 0; i < cfg->size; i++) {
1013                 if (cfg->texts) {
1014                         change |= (uc->value.enumerated.item[i] != cfg->val[i]);
1015                         cfg->val[i] = uc->value.enumerated.item[i];
1016                 } else {
1017                         change |= (uc->value.integer.value[i] != cfg->val[i]);
1018                         cfg->val[i] = uc->value.integer.value[i];
1019                 }
1020         }
1021
1022         if (change)
1023                 cfg->update(cfg->io, mod);
1024
1025         return change;
1026 }
1027
1028 static int __rsnd_kctrl_new(struct rsnd_mod *mod,
1029                             struct rsnd_dai_stream *io,
1030                             struct snd_soc_pcm_runtime *rtd,
1031                             const unsigned char *name,
1032                             struct rsnd_kctrl_cfg *cfg,
1033                             void (*update)(struct rsnd_dai_stream *io,
1034                                            struct rsnd_mod *mod))
1035 {
1036         struct snd_soc_card *soc_card = rtd->card;
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                 .index          = rtd - soc_card->rtd,
1044                 .get            = rsnd_kctrl_get,
1045                 .put            = rsnd_kctrl_put,
1046                 .private_value  = (unsigned long)cfg,
1047         };
1048         int ret;
1049
1050         kctrl = snd_ctl_new1(&knew, mod);
1051         if (!kctrl)
1052                 return -ENOMEM;
1053
1054         ret = snd_ctl_add(card, kctrl);
1055         if (ret < 0) {
1056                 snd_ctl_free_one(kctrl);
1057                 return ret;
1058         }
1059
1060         cfg->update = update;
1061         cfg->card = card;
1062         cfg->kctrl = kctrl;
1063         cfg->io = io;
1064
1065         return 0;
1066 }
1067
1068 void _rsnd_kctrl_remove(struct rsnd_kctrl_cfg *cfg)
1069 {
1070         snd_ctl_remove(cfg->card, cfg->kctrl);
1071 }
1072
1073 int rsnd_kctrl_new_m(struct rsnd_mod *mod,
1074                      struct rsnd_dai_stream *io,
1075                      struct snd_soc_pcm_runtime *rtd,
1076                      const unsigned char *name,
1077                      void (*update)(struct rsnd_dai_stream *io,
1078                                     struct rsnd_mod *mod),
1079                      struct rsnd_kctrl_cfg_m *_cfg,
1080                      u32 max)
1081 {
1082         _cfg->cfg.max   = max;
1083         _cfg->cfg.size  = RSND_DVC_CHANNELS;
1084         _cfg->cfg.val   = _cfg->val;
1085         return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
1086 }
1087
1088 int rsnd_kctrl_new_s(struct rsnd_mod *mod,
1089                      struct rsnd_dai_stream *io,
1090                      struct snd_soc_pcm_runtime *rtd,
1091                      const unsigned char *name,
1092                      void (*update)(struct rsnd_dai_stream *io,
1093                                     struct rsnd_mod *mod),
1094                      struct rsnd_kctrl_cfg_s *_cfg,
1095                      u32 max)
1096 {
1097         _cfg->cfg.max   = max;
1098         _cfg->cfg.size  = 1;
1099         _cfg->cfg.val   = &_cfg->val;
1100         return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
1101 }
1102
1103 int rsnd_kctrl_new_e(struct rsnd_mod *mod,
1104                      struct rsnd_dai_stream *io,
1105                      struct snd_soc_pcm_runtime *rtd,
1106                      const unsigned char *name,
1107                      struct rsnd_kctrl_cfg_s *_cfg,
1108                      void (*update)(struct rsnd_dai_stream *io,
1109                                     struct rsnd_mod *mod),
1110                      const char * const *texts,
1111                      u32 max)
1112 {
1113         _cfg->cfg.max   = max;
1114         _cfg->cfg.size  = 1;
1115         _cfg->cfg.val   = &_cfg->val;
1116         _cfg->cfg.texts = texts;
1117         return __rsnd_kctrl_new(mod, io, rtd, name, &_cfg->cfg, update);
1118 }
1119
1120 /*
1121  *              snd_soc_platform
1122  */
1123
1124 #define PREALLOC_BUFFER         (32 * 1024)
1125 #define PREALLOC_BUFFER_MAX     (32 * 1024)
1126
1127 static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
1128 {
1129         struct snd_soc_dai *dai = rtd->cpu_dai;
1130         struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1131         int ret;
1132
1133         ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
1134         if (ret)
1135                 return ret;
1136
1137         ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
1138         if (ret)
1139                 return ret;
1140
1141         return snd_pcm_lib_preallocate_pages_for_all(
1142                 rtd->pcm,
1143                 SNDRV_DMA_TYPE_DEV,
1144                 rtd->card->snd_card->dev,
1145                 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1146 }
1147
1148 static struct snd_soc_platform_driver rsnd_soc_platform = {
1149         .ops            = &rsnd_pcm_ops,
1150         .pcm_new        = rsnd_pcm_new,
1151 };
1152
1153 static const struct snd_soc_component_driver rsnd_soc_component = {
1154         .name           = "rsnd",
1155 };
1156
1157 static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1158                                        struct rsnd_dai_stream *io)
1159 {
1160         int ret;
1161
1162         ret = rsnd_dai_call(probe, io, priv);
1163         if (ret == -EAGAIN) {
1164                 /*
1165                  * Fallback to PIO mode
1166                  */
1167
1168                 /*
1169                  * call "remove" for SSI/SRC/DVC
1170                  * SSI will be switch to PIO mode if it was DMA mode
1171                  * see
1172                  *      rsnd_dma_init()
1173                  *      rsnd_ssi_fallback()
1174                  */
1175                 rsnd_dai_call(remove, io, priv);
1176
1177                 /*
1178                  * remove SRC/DVC from DAI,
1179                  */
1180                 rsnd_path_remove(priv, io, src);
1181                 rsnd_path_remove(priv, io, dvc);
1182
1183                 /*
1184                  * fallback
1185                  */
1186                 rsnd_dai_call(fallback, io, priv);
1187
1188                 /*
1189                  * retry to "probe".
1190                  * DAI has SSI which is PIO mode only now.
1191                  */
1192                 ret = rsnd_dai_call(probe, io, priv);
1193         }
1194
1195         return ret;
1196 }
1197
1198 /*
1199  *      rsnd probe
1200  */
1201 static int rsnd_probe(struct platform_device *pdev)
1202 {
1203         struct rcar_snd_info *info;
1204         struct rsnd_priv *priv;
1205         struct device *dev = &pdev->dev;
1206         struct rsnd_dai *rdai;
1207         const struct of_device_id *of_id = of_match_device(rsnd_of_match, dev);
1208         const struct rsnd_of_data *of_data;
1209         int (*probe_func[])(struct platform_device *pdev,
1210                             const struct rsnd_of_data *of_data,
1211                             struct rsnd_priv *priv) = {
1212                 rsnd_gen_probe,
1213                 rsnd_dma_probe,
1214                 rsnd_ssi_probe,
1215                 rsnd_src_probe,
1216                 rsnd_ctu_probe,
1217                 rsnd_mix_probe,
1218                 rsnd_dvc_probe,
1219                 rsnd_adg_probe,
1220                 rsnd_dai_probe,
1221         };
1222         int ret, i;
1223
1224         info = devm_kzalloc(&pdev->dev, sizeof(struct rcar_snd_info),
1225                             GFP_KERNEL);
1226         if (!info)
1227                 return -ENOMEM;
1228         of_data = of_id->data;
1229
1230         /*
1231          *      init priv data
1232          */
1233         priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1234         if (!priv) {
1235                 dev_err(dev, "priv allocate failed\n");
1236                 return -ENODEV;
1237         }
1238
1239         priv->pdev      = pdev;
1240         priv->info      = info;
1241         spin_lock_init(&priv->lock);
1242
1243         /*
1244          *      init each module
1245          */
1246         for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
1247                 ret = probe_func[i](pdev, of_data, priv);
1248                 if (ret)
1249                         return ret;
1250         }
1251
1252         for_each_rsnd_dai(rdai, priv, i) {
1253                 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
1254                 if (ret)
1255                         goto exit_snd_probe;
1256
1257                 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
1258                 if (ret)
1259                         goto exit_snd_probe;
1260         }
1261
1262         dev_set_drvdata(dev, priv);
1263
1264         /*
1265          *      asoc register
1266          */
1267         ret = snd_soc_register_platform(dev, &rsnd_soc_platform);
1268         if (ret < 0) {
1269                 dev_err(dev, "cannot snd soc register\n");
1270                 return ret;
1271         }
1272
1273         ret = snd_soc_register_component(dev, &rsnd_soc_component,
1274                                          priv->daidrv, rsnd_rdai_nr(priv));
1275         if (ret < 0) {
1276                 dev_err(dev, "cannot snd dai register\n");
1277                 goto exit_snd_soc;
1278         }
1279
1280         pm_runtime_enable(dev);
1281
1282         dev_info(dev, "probed\n");
1283         return ret;
1284
1285 exit_snd_soc:
1286         snd_soc_unregister_platform(dev);
1287 exit_snd_probe:
1288         for_each_rsnd_dai(rdai, priv, i) {
1289                 rsnd_dai_call(remove, &rdai->playback, priv);
1290                 rsnd_dai_call(remove, &rdai->capture, priv);
1291         }
1292
1293         return ret;
1294 }
1295
1296 static int rsnd_remove(struct platform_device *pdev)
1297 {
1298         struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
1299         struct rsnd_dai *rdai;
1300         void (*remove_func[])(struct platform_device *pdev,
1301                               struct rsnd_priv *priv) = {
1302                 rsnd_ssi_remove,
1303                 rsnd_src_remove,
1304                 rsnd_ctu_remove,
1305                 rsnd_mix_remove,
1306                 rsnd_dvc_remove,
1307         };
1308         int ret = 0, i;
1309
1310         pm_runtime_disable(&pdev->dev);
1311
1312         for_each_rsnd_dai(rdai, priv, i) {
1313                 ret |= rsnd_dai_call(remove, &rdai->playback, priv);
1314                 ret |= rsnd_dai_call(remove, &rdai->capture, priv);
1315         }
1316
1317         for (i = 0; i < ARRAY_SIZE(remove_func); i++)
1318                 remove_func[i](pdev, priv);
1319
1320         snd_soc_unregister_component(&pdev->dev);
1321         snd_soc_unregister_platform(&pdev->dev);
1322
1323         return ret;
1324 }
1325
1326 static struct platform_driver rsnd_driver = {
1327         .driver = {
1328                 .name   = "rcar_sound",
1329                 .of_match_table = rsnd_of_match,
1330         },
1331         .probe          = rsnd_probe,
1332         .remove         = rsnd_remove,
1333 };
1334 module_platform_driver(rsnd_driver);
1335
1336 MODULE_LICENSE("GPL");
1337 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1338 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1339 MODULE_ALIAS("platform:rcar-pcm-audio");