1 /* 2 * Renesas R-Car SRU/SCU/SSIU/SSI support 3 * 4 * Copyright (C) 2013 Renesas Solutions Corp. 5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 6 * 7 * Based on fsi.c 8 * Kuninori Morimoto <morimoto.kuninori@renesas.com> 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License version 2 as 12 * published by the Free Software Foundation. 13 */ 14 15 /* 16 * Renesas R-Car sound device structure 17 * 18 * Gen1 19 * 20 * SRU : Sound Routing Unit 21 * - SRC : Sampling Rate Converter 22 * - CMD 23 * - CTU : Channel Count Conversion Unit 24 * - MIX : Mixer 25 * - DVC : Digital Volume and Mute Function 26 * - SSI : Serial Sound Interface 27 * 28 * Gen2 29 * 30 * SCU : Sampling Rate Converter Unit 31 * - SRC : Sampling Rate Converter 32 * - CMD 33 * - CTU : Channel Count Conversion Unit 34 * - MIX : Mixer 35 * - DVC : Digital Volume and Mute Function 36 * SSIU : Serial Sound Interface Unit 37 * - SSI : Serial Sound Interface 38 */ 39 40 /* 41 * driver data Image 42 * 43 * rsnd_priv 44 * | 45 * | ** this depends on Gen1/Gen2 46 * | 47 * +- gen 48 * | 49 * | ** these depend on data path 50 * | ** gen and platform data control it 51 * | 52 * +- rdai[0] 53 * | | sru ssiu ssi 54 * | +- playback -> [mod] -> [mod] -> [mod] -> ... 55 * | | 56 * | | sru ssiu ssi 57 * | +- capture -> [mod] -> [mod] -> [mod] -> ... 58 * | 59 * +- rdai[1] 60 * | | sru ssiu ssi 61 * | +- playback -> [mod] -> [mod] -> [mod] -> ... 62 * | | 63 * | | sru ssiu ssi 64 * | +- capture -> [mod] -> [mod] -> [mod] -> ... 65 * ... 66 * | 67 * | ** these control ssi 68 * | 69 * +- ssi 70 * | | 71 * | +- ssi[0] 72 * | +- ssi[1] 73 * | +- ssi[2] 74 * | ... 75 * | 76 * | ** these control scu 77 * | 78 * +- scu 79 * | 80 * +- scu[0] 81 * +- scu[1] 82 * +- scu[2] 83 * ... 84 * 85 * 86 * for_each_rsnd_dai(xx, priv, xx) 87 * rdai[0] => rdai[1] => rdai[2] => ... 88 * 89 * for_each_rsnd_mod(xx, rdai, xx) 90 * [mod] => [mod] => [mod] => ... 91 * 92 * rsnd_dai_call(xxx, fn ) 93 * [mod]->fn() -> [mod]->fn() -> [mod]->fn()... 94 * 95 */ 96 #include <linux/pm_runtime.h> 97 #include <linux/shdma-base.h> 98 #include "rsnd.h" 99 100 #define RSND_RATES SNDRV_PCM_RATE_8000_96000 101 #define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE) 102 103 /* 104 * rsnd_platform functions 105 */ 106 #define rsnd_platform_call(priv, dai, func, param...) \ 107 (!(priv->info->func) ? 0 : \ 108 priv->info->func(param)) 109 110 /* 111 * rsnd_mod functions 112 */ 113 char *rsnd_mod_name(struct rsnd_mod *mod) 114 { 115 if (!mod || !mod->ops) 116 return "unknown"; 117 118 return mod->ops->name; 119 } 120 121 void rsnd_mod_init(struct rsnd_priv *priv, 122 struct rsnd_mod *mod, 123 struct rsnd_mod_ops *ops, 124 int id) 125 { 126 mod->priv = priv; 127 mod->id = id; 128 mod->ops = ops; 129 INIT_LIST_HEAD(&mod->list); 130 } 131 132 /* 133 * rsnd_dma functions 134 */ 135 static void rsnd_dma_continue(struct rsnd_dma *dma) 136 { 137 /* push next A or B plane */ 138 dma->submit_loop = 1; 139 schedule_work(&dma->work); 140 } 141 142 void rsnd_dma_start(struct rsnd_dma *dma) 143 { 144 /* push both A and B plane*/ 145 dma->submit_loop = 2; 146 schedule_work(&dma->work); 147 } 148 149 void rsnd_dma_stop(struct rsnd_dma *dma) 150 { 151 dma->submit_loop = 0; 152 cancel_work_sync(&dma->work); 153 dmaengine_terminate_all(dma->chan); 154 } 155 156 static void rsnd_dma_complete(void *data) 157 { 158 struct rsnd_dma *dma = (struct rsnd_dma *)data; 159 struct rsnd_priv *priv = dma->priv; 160 unsigned long flags; 161 162 rsnd_lock(priv, flags); 163 164 dma->complete(dma); 165 166 if (dma->submit_loop) 167 rsnd_dma_continue(dma); 168 169 rsnd_unlock(priv, flags); 170 } 171 172 static void rsnd_dma_do_work(struct work_struct *work) 173 { 174 struct rsnd_dma *dma = container_of(work, struct rsnd_dma, work); 175 struct rsnd_priv *priv = dma->priv; 176 struct device *dev = rsnd_priv_to_dev(priv); 177 struct dma_async_tx_descriptor *desc; 178 dma_addr_t buf; 179 size_t len; 180 int i; 181 182 for (i = 0; i < dma->submit_loop; i++) { 183 184 if (dma->inquiry(dma, &buf, &len) < 0) 185 return; 186 187 desc = dmaengine_prep_slave_single( 188 dma->chan, buf, len, dma->dir, 189 DMA_PREP_INTERRUPT | DMA_CTRL_ACK); 190 if (!desc) { 191 dev_err(dev, "dmaengine_prep_slave_sg() fail\n"); 192 return; 193 } 194 195 desc->callback = rsnd_dma_complete; 196 desc->callback_param = dma; 197 198 if (dmaengine_submit(desc) < 0) { 199 dev_err(dev, "dmaengine_submit() fail\n"); 200 return; 201 } 202 203 dma_async_issue_pending(dma->chan); 204 } 205 } 206 207 int rsnd_dma_available(struct rsnd_dma *dma) 208 { 209 return !!dma->chan; 210 } 211 212 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma, 213 int is_play, int id, 214 int (*inquiry)(struct rsnd_dma *dma, 215 dma_addr_t *buf, int *len), 216 int (*complete)(struct rsnd_dma *dma)) 217 { 218 struct device *dev = rsnd_priv_to_dev(priv); 219 struct dma_slave_config cfg; 220 dma_cap_mask_t mask; 221 int ret; 222 223 if (dma->chan) { 224 dev_err(dev, "it already has dma channel\n"); 225 return -EIO; 226 } 227 228 dma_cap_zero(mask); 229 dma_cap_set(DMA_SLAVE, mask); 230 231 dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter, 232 (void *)id, dev, 233 is_play ? "tx" : "rx"); 234 if (!dma->chan) { 235 dev_err(dev, "can't get dma channel\n"); 236 return -EIO; 237 } 238 239 cfg.slave_id = id; 240 cfg.dst_addr = 0; /* use default addr when playback */ 241 cfg.src_addr = 0; /* use default addr when capture */ 242 cfg.direction = is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM; 243 244 ret = dmaengine_slave_config(dma->chan, &cfg); 245 if (ret < 0) 246 goto rsnd_dma_init_err; 247 248 dma->dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE; 249 dma->priv = priv; 250 dma->inquiry = inquiry; 251 dma->complete = complete; 252 INIT_WORK(&dma->work, rsnd_dma_do_work); 253 254 return 0; 255 256 rsnd_dma_init_err: 257 rsnd_dma_quit(priv, dma); 258 259 return ret; 260 } 261 262 void rsnd_dma_quit(struct rsnd_priv *priv, 263 struct rsnd_dma *dma) 264 { 265 if (dma->chan) 266 dma_release_channel(dma->chan); 267 268 dma->chan = NULL; 269 } 270 271 /* 272 * rsnd_dai functions 273 */ 274 #define rsnd_dai_call(rdai, io, fn) \ 275 ({ \ 276 struct rsnd_mod *mod, *n; \ 277 int ret = 0; \ 278 for_each_rsnd_mod(mod, n, io) { \ 279 ret = rsnd_mod_call(mod, fn, rdai, io); \ 280 if (ret < 0) \ 281 break; \ 282 } \ 283 ret; \ 284 }) 285 286 int rsnd_dai_connect(struct rsnd_dai *rdai, 287 struct rsnd_mod *mod, 288 struct rsnd_dai_stream *io) 289 { 290 if (!mod) 291 return -EIO; 292 293 if (!list_empty(&mod->list)) { 294 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); 295 struct device *dev = rsnd_priv_to_dev(priv); 296 297 dev_err(dev, "%s%d is not empty\n", 298 rsnd_mod_name(mod), 299 rsnd_mod_id(mod)); 300 return -EIO; 301 } 302 303 list_add_tail(&mod->list, &io->head); 304 305 return 0; 306 } 307 308 int rsnd_dai_disconnect(struct rsnd_mod *mod) 309 { 310 list_del_init(&mod->list); 311 312 return 0; 313 } 314 315 int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai) 316 { 317 int id = rdai - priv->rdai; 318 319 if ((id < 0) || (id >= rsnd_dai_nr(priv))) 320 return -EINVAL; 321 322 return id; 323 } 324 325 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id) 326 { 327 if ((id < 0) || (id >= rsnd_dai_nr(priv))) 328 return NULL; 329 330 return priv->rdai + id; 331 } 332 333 static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai) 334 { 335 struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); 336 337 return rsnd_dai_get(priv, dai->id); 338 } 339 340 int rsnd_dai_is_play(struct rsnd_dai *rdai, struct rsnd_dai_stream *io) 341 { 342 return &rdai->playback == io; 343 } 344 345 /* 346 * rsnd_soc_dai functions 347 */ 348 int rsnd_dai_pointer_offset(struct rsnd_dai_stream *io, int additional) 349 { 350 struct snd_pcm_substream *substream = io->substream; 351 struct snd_pcm_runtime *runtime = substream->runtime; 352 int pos = io->byte_pos + additional; 353 354 pos %= (runtime->periods * io->byte_per_period); 355 356 return pos; 357 } 358 359 void rsnd_dai_pointer_update(struct rsnd_dai_stream *io, int byte) 360 { 361 io->byte_pos += byte; 362 363 if (io->byte_pos >= io->next_period_byte) { 364 struct snd_pcm_substream *substream = io->substream; 365 struct snd_pcm_runtime *runtime = substream->runtime; 366 367 io->period_pos++; 368 io->next_period_byte += io->byte_per_period; 369 370 if (io->period_pos >= runtime->periods) { 371 io->byte_pos = 0; 372 io->period_pos = 0; 373 io->next_period_byte = io->byte_per_period; 374 } 375 376 snd_pcm_period_elapsed(substream); 377 } 378 } 379 380 static int rsnd_dai_stream_init(struct rsnd_dai_stream *io, 381 struct snd_pcm_substream *substream) 382 { 383 struct snd_pcm_runtime *runtime = substream->runtime; 384 385 if (!list_empty(&io->head)) 386 return -EIO; 387 388 INIT_LIST_HEAD(&io->head); 389 io->substream = substream; 390 io->byte_pos = 0; 391 io->period_pos = 0; 392 io->byte_per_period = runtime->period_size * 393 runtime->channels * 394 samples_to_bytes(runtime, 1); 395 io->next_period_byte = io->byte_per_period; 396 397 return 0; 398 } 399 400 static 401 struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream) 402 { 403 struct snd_soc_pcm_runtime *rtd = substream->private_data; 404 405 return rtd->cpu_dai; 406 } 407 408 static 409 struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai, 410 struct snd_pcm_substream *substream) 411 { 412 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 413 return &rdai->playback; 414 else 415 return &rdai->capture; 416 } 417 418 static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd, 419 struct snd_soc_dai *dai) 420 { 421 struct rsnd_priv *priv = snd_soc_dai_get_drvdata(dai); 422 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 423 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 424 struct rsnd_mod *mod = rsnd_ssi_mod_get_frm_dai(priv, 425 rsnd_dai_id(priv, rdai), 426 rsnd_dai_is_play(rdai, io)); 427 int ssi_id = rsnd_mod_id(mod); 428 int ret; 429 unsigned long flags; 430 431 rsnd_lock(priv, flags); 432 433 switch (cmd) { 434 case SNDRV_PCM_TRIGGER_START: 435 ret = rsnd_dai_stream_init(io, substream); 436 if (ret < 0) 437 goto dai_trigger_end; 438 439 ret = rsnd_platform_call(priv, dai, start, ssi_id); 440 if (ret < 0) 441 goto dai_trigger_end; 442 443 ret = rsnd_gen_path_init(priv, rdai, io); 444 if (ret < 0) 445 goto dai_trigger_end; 446 447 ret = rsnd_dai_call(rdai, io, init); 448 if (ret < 0) 449 goto dai_trigger_end; 450 451 ret = rsnd_dai_call(rdai, io, start); 452 if (ret < 0) 453 goto dai_trigger_end; 454 break; 455 case SNDRV_PCM_TRIGGER_STOP: 456 ret = rsnd_dai_call(rdai, io, stop); 457 if (ret < 0) 458 goto dai_trigger_end; 459 460 ret = rsnd_dai_call(rdai, io, quit); 461 if (ret < 0) 462 goto dai_trigger_end; 463 464 ret = rsnd_gen_path_exit(priv, rdai, io); 465 if (ret < 0) 466 goto dai_trigger_end; 467 468 ret = rsnd_platform_call(priv, dai, stop, ssi_id); 469 if (ret < 0) 470 goto dai_trigger_end; 471 break; 472 default: 473 ret = -EINVAL; 474 } 475 476 dai_trigger_end: 477 rsnd_unlock(priv, flags); 478 479 return ret; 480 } 481 482 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 483 { 484 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 485 486 /* set master/slave audio interface */ 487 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 488 case SND_SOC_DAIFMT_CBM_CFM: 489 rdai->clk_master = 1; 490 break; 491 case SND_SOC_DAIFMT_CBS_CFS: 492 rdai->clk_master = 0; 493 break; 494 default: 495 return -EINVAL; 496 } 497 498 /* set clock inversion */ 499 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 500 case SND_SOC_DAIFMT_NB_IF: 501 rdai->bit_clk_inv = 0; 502 rdai->frm_clk_inv = 1; 503 break; 504 case SND_SOC_DAIFMT_IB_NF: 505 rdai->bit_clk_inv = 1; 506 rdai->frm_clk_inv = 0; 507 break; 508 case SND_SOC_DAIFMT_IB_IF: 509 rdai->bit_clk_inv = 1; 510 rdai->frm_clk_inv = 1; 511 break; 512 case SND_SOC_DAIFMT_NB_NF: 513 default: 514 rdai->bit_clk_inv = 0; 515 rdai->frm_clk_inv = 0; 516 break; 517 } 518 519 /* set format */ 520 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 521 case SND_SOC_DAIFMT_I2S: 522 rdai->sys_delay = 0; 523 rdai->data_alignment = 0; 524 break; 525 case SND_SOC_DAIFMT_LEFT_J: 526 rdai->sys_delay = 1; 527 rdai->data_alignment = 0; 528 break; 529 case SND_SOC_DAIFMT_RIGHT_J: 530 rdai->sys_delay = 1; 531 rdai->data_alignment = 1; 532 break; 533 } 534 535 return 0; 536 } 537 538 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = { 539 .trigger = rsnd_soc_dai_trigger, 540 .set_fmt = rsnd_soc_dai_set_fmt, 541 }; 542 543 static int rsnd_dai_probe(struct platform_device *pdev, 544 struct rcar_snd_info *info, 545 struct rsnd_priv *priv) 546 { 547 struct snd_soc_dai_driver *drv; 548 struct rsnd_dai *rdai; 549 struct rsnd_mod *pmod, *cmod; 550 struct device *dev = rsnd_priv_to_dev(priv); 551 int dai_nr; 552 int i; 553 554 /* get max dai nr */ 555 for (dai_nr = 0; dai_nr < 32; dai_nr++) { 556 pmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 1); 557 cmod = rsnd_ssi_mod_get_frm_dai(priv, dai_nr, 0); 558 559 if (!pmod && !cmod) 560 break; 561 } 562 563 if (!dai_nr) { 564 dev_err(dev, "no dai\n"); 565 return -EIO; 566 } 567 568 drv = devm_kzalloc(dev, sizeof(*drv) * dai_nr, GFP_KERNEL); 569 rdai = devm_kzalloc(dev, sizeof(*rdai) * dai_nr, GFP_KERNEL); 570 if (!drv || !rdai) { 571 dev_err(dev, "dai allocate failed\n"); 572 return -ENOMEM; 573 } 574 575 for (i = 0; i < dai_nr; i++) { 576 577 pmod = rsnd_ssi_mod_get_frm_dai(priv, i, 1); 578 cmod = rsnd_ssi_mod_get_frm_dai(priv, i, 0); 579 580 /* 581 * init rsnd_dai 582 */ 583 INIT_LIST_HEAD(&rdai[i].playback.head); 584 INIT_LIST_HEAD(&rdai[i].capture.head); 585 586 snprintf(rdai[i].name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", i); 587 588 /* 589 * init snd_soc_dai_driver 590 */ 591 drv[i].name = rdai[i].name; 592 drv[i].ops = &rsnd_soc_dai_ops; 593 if (pmod) { 594 drv[i].playback.rates = RSND_RATES; 595 drv[i].playback.formats = RSND_FMTS; 596 drv[i].playback.channels_min = 2; 597 drv[i].playback.channels_max = 2; 598 } 599 if (cmod) { 600 drv[i].capture.rates = RSND_RATES; 601 drv[i].capture.formats = RSND_FMTS; 602 drv[i].capture.channels_min = 2; 603 drv[i].capture.channels_max = 2; 604 } 605 606 dev_dbg(dev, "%s (%s/%s)\n", rdai[i].name, 607 pmod ? "play" : " -- ", 608 cmod ? "capture" : " -- "); 609 } 610 611 priv->dai_nr = dai_nr; 612 priv->daidrv = drv; 613 priv->rdai = rdai; 614 615 return 0; 616 } 617 618 static void rsnd_dai_remove(struct platform_device *pdev, 619 struct rsnd_priv *priv) 620 { 621 } 622 623 /* 624 * pcm ops 625 */ 626 static struct snd_pcm_hardware rsnd_pcm_hardware = { 627 .info = SNDRV_PCM_INFO_INTERLEAVED | 628 SNDRV_PCM_INFO_MMAP | 629 SNDRV_PCM_INFO_MMAP_VALID | 630 SNDRV_PCM_INFO_PAUSE, 631 .formats = RSND_FMTS, 632 .rates = RSND_RATES, 633 .rate_min = 8000, 634 .rate_max = 192000, 635 .channels_min = 2, 636 .channels_max = 2, 637 .buffer_bytes_max = 64 * 1024, 638 .period_bytes_min = 32, 639 .period_bytes_max = 8192, 640 .periods_min = 1, 641 .periods_max = 32, 642 .fifo_size = 256, 643 }; 644 645 static int rsnd_pcm_open(struct snd_pcm_substream *substream) 646 { 647 struct snd_pcm_runtime *runtime = substream->runtime; 648 int ret = 0; 649 650 snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware); 651 652 ret = snd_pcm_hw_constraint_integer(runtime, 653 SNDRV_PCM_HW_PARAM_PERIODS); 654 655 return ret; 656 } 657 658 static int rsnd_hw_params(struct snd_pcm_substream *substream, 659 struct snd_pcm_hw_params *hw_params) 660 { 661 return snd_pcm_lib_malloc_pages(substream, 662 params_buffer_bytes(hw_params)); 663 } 664 665 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream) 666 { 667 struct snd_pcm_runtime *runtime = substream->runtime; 668 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); 669 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 670 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 671 672 return bytes_to_frames(runtime, io->byte_pos); 673 } 674 675 static struct snd_pcm_ops rsnd_pcm_ops = { 676 .open = rsnd_pcm_open, 677 .ioctl = snd_pcm_lib_ioctl, 678 .hw_params = rsnd_hw_params, 679 .hw_free = snd_pcm_lib_free_pages, 680 .pointer = rsnd_pointer, 681 }; 682 683 /* 684 * snd_soc_platform 685 */ 686 687 #define PREALLOC_BUFFER (32 * 1024) 688 #define PREALLOC_BUFFER_MAX (32 * 1024) 689 690 static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd) 691 { 692 return snd_pcm_lib_preallocate_pages_for_all( 693 rtd->pcm, 694 SNDRV_DMA_TYPE_DEV, 695 rtd->card->snd_card->dev, 696 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); 697 } 698 699 static void rsnd_pcm_free(struct snd_pcm *pcm) 700 { 701 snd_pcm_lib_preallocate_free_for_all(pcm); 702 } 703 704 static struct snd_soc_platform_driver rsnd_soc_platform = { 705 .ops = &rsnd_pcm_ops, 706 .pcm_new = rsnd_pcm_new, 707 .pcm_free = rsnd_pcm_free, 708 }; 709 710 static const struct snd_soc_component_driver rsnd_soc_component = { 711 .name = "rsnd", 712 }; 713 714 /* 715 * rsnd probe 716 */ 717 static int rsnd_probe(struct platform_device *pdev) 718 { 719 struct rcar_snd_info *info; 720 struct rsnd_priv *priv; 721 struct device *dev = &pdev->dev; 722 int ret; 723 724 info = pdev->dev.platform_data; 725 if (!info) { 726 dev_err(dev, "driver needs R-Car sound information\n"); 727 return -ENODEV; 728 } 729 730 /* 731 * init priv data 732 */ 733 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 734 if (!priv) { 735 dev_err(dev, "priv allocate failed\n"); 736 return -ENODEV; 737 } 738 739 priv->dev = dev; 740 priv->info = info; 741 spin_lock_init(&priv->lock); 742 743 /* 744 * init each module 745 */ 746 ret = rsnd_gen_probe(pdev, info, priv); 747 if (ret < 0) 748 return ret; 749 750 ret = rsnd_scu_probe(pdev, info, priv); 751 if (ret < 0) 752 return ret; 753 754 ret = rsnd_adg_probe(pdev, info, priv); 755 if (ret < 0) 756 return ret; 757 758 ret = rsnd_ssi_probe(pdev, info, priv); 759 if (ret < 0) 760 return ret; 761 762 ret = rsnd_dai_probe(pdev, info, priv); 763 if (ret < 0) 764 return ret; 765 766 /* 767 * asoc register 768 */ 769 ret = snd_soc_register_platform(dev, &rsnd_soc_platform); 770 if (ret < 0) { 771 dev_err(dev, "cannot snd soc register\n"); 772 return ret; 773 } 774 775 ret = snd_soc_register_component(dev, &rsnd_soc_component, 776 priv->daidrv, rsnd_dai_nr(priv)); 777 if (ret < 0) { 778 dev_err(dev, "cannot snd dai register\n"); 779 goto exit_snd_soc; 780 } 781 782 dev_set_drvdata(dev, priv); 783 784 pm_runtime_enable(dev); 785 786 dev_info(dev, "probed\n"); 787 return ret; 788 789 exit_snd_soc: 790 snd_soc_unregister_platform(dev); 791 792 return ret; 793 } 794 795 static int rsnd_remove(struct platform_device *pdev) 796 { 797 struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev); 798 799 pm_runtime_disable(&pdev->dev); 800 801 /* 802 * remove each module 803 */ 804 rsnd_ssi_remove(pdev, priv); 805 rsnd_adg_remove(pdev, priv); 806 rsnd_scu_remove(pdev, priv); 807 rsnd_dai_remove(pdev, priv); 808 rsnd_gen_remove(pdev, priv); 809 810 return 0; 811 } 812 813 static struct platform_driver rsnd_driver = { 814 .driver = { 815 .name = "rcar_sound", 816 }, 817 .probe = rsnd_probe, 818 .remove = rsnd_remove, 819 }; 820 module_platform_driver(rsnd_driver); 821 822 MODULE_LICENSE("GPL"); 823 MODULE_DESCRIPTION("Renesas R-Car audio driver"); 824 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); 825 MODULE_ALIAS("platform:rcar-pcm-audio"); 826