1// SPDX-License-Identifier: GPL-2.0 2// 3// Renesas R-Car SRU/SCU/SSIU/SSI support 4// 5// Copyright (C) 2013 Renesas Solutions Corp. 6// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> 7// 8// Based on fsi.c 9// Kuninori Morimoto <morimoto.kuninori@renesas.com> 10 11/* 12 * Renesas R-Car sound device structure 13 * 14 * Gen1 15 * 16 * SRU : Sound Routing Unit 17 * - SRC : Sampling Rate Converter 18 * - CMD 19 * - CTU : Channel Count Conversion Unit 20 * - MIX : Mixer 21 * - DVC : Digital Volume and Mute Function 22 * - SSI : Serial Sound Interface 23 * 24 * Gen2 25 * 26 * SCU : Sampling Rate Converter Unit 27 * - SRC : Sampling Rate Converter 28 * - CMD 29 * - CTU : Channel Count Conversion Unit 30 * - MIX : Mixer 31 * - DVC : Digital Volume and Mute Function 32 * SSIU : Serial Sound Interface Unit 33 * - SSI : Serial Sound Interface 34 */ 35 36/* 37 * driver data Image 38 * 39 * rsnd_priv 40 * | 41 * | ** this depends on Gen1/Gen2 42 * | 43 * +- gen 44 * | 45 * | ** these depend on data path 46 * | ** gen and platform data control it 47 * | 48 * +- rdai[0] 49 * | | sru ssiu ssi 50 * | +- playback -> [mod] -> [mod] -> [mod] -> ... 51 * | | 52 * | | sru ssiu ssi 53 * | +- capture -> [mod] -> [mod] -> [mod] -> ... 54 * | 55 * +- rdai[1] 56 * | | sru ssiu ssi 57 * | +- playback -> [mod] -> [mod] -> [mod] -> ... 58 * | | 59 * | | sru ssiu ssi 60 * | +- capture -> [mod] -> [mod] -> [mod] -> ... 61 * ... 62 * | 63 * | ** these control ssi 64 * | 65 * +- ssi 66 * | | 67 * | +- ssi[0] 68 * | +- ssi[1] 69 * | +- ssi[2] 70 * | ... 71 * | 72 * | ** these control src 73 * | 74 * +- src 75 * | 76 * +- src[0] 77 * +- src[1] 78 * +- src[2] 79 * ... 80 * 81 * 82 * for_each_rsnd_dai(xx, priv, xx) 83 * rdai[0] => rdai[1] => rdai[2] => ... 84 * 85 * for_each_rsnd_mod(xx, rdai, xx) 86 * [mod] => [mod] => [mod] => ... 87 * 88 * rsnd_dai_call(xxx, fn ) 89 * [mod]->fn() -> [mod]->fn() -> [mod]->fn()... 90 * 91 */ 92 93#include <linux/pm_runtime.h> 94#include <linux/of_graph.h> 95#include "rsnd.h" 96 97#define RSND_RATES SNDRV_PCM_RATE_8000_192000 98#define RSND_FMTS (SNDRV_PCM_FMTBIT_S8 |\ 99 SNDRV_PCM_FMTBIT_S16_LE |\ 100 SNDRV_PCM_FMTBIT_S24_LE) 101 102static const struct of_device_id rsnd_of_match[] = { 103 { .compatible = "renesas,rcar_sound-gen1", .data = (void *)RSND_GEN1 }, 104 { .compatible = "renesas,rcar_sound-gen2", .data = (void *)RSND_GEN2 }, 105 { .compatible = "renesas,rcar_sound-gen3", .data = (void *)RSND_GEN3 }, 106 { .compatible = "renesas,rcar_sound-gen4", .data = (void *)RSND_GEN4 }, 107 /* Special Handling */ 108 { .compatible = "renesas,rcar_sound-r8a77990", .data = (void *)(RSND_GEN3 | RSND_SOC_E) }, 109 {}, 110}; 111MODULE_DEVICE_TABLE(of, rsnd_of_match); 112 113/* 114 * rsnd_mod functions 115 */ 116void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type) 117{ 118 if (mod->type != type) { 119 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); 120 struct device *dev = rsnd_priv_to_dev(priv); 121 122 dev_warn(dev, "%s is not your expected module\n", 123 rsnd_mod_name(mod)); 124 } 125} 126 127struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io, 128 struct rsnd_mod *mod) 129{ 130 if (!mod || !mod->ops || !mod->ops->dma_req) 131 return NULL; 132 133 return mod->ops->dma_req(io, mod); 134} 135 136#define MOD_NAME_NUM 5 137#define MOD_NAME_SIZE 16 138char *rsnd_mod_name(struct rsnd_mod *mod) 139{ 140 static char names[MOD_NAME_NUM][MOD_NAME_SIZE]; 141 static int num; 142 char *name = names[num]; 143 144 num++; 145 if (num >= MOD_NAME_NUM) 146 num = 0; 147 148 /* 149 * Let's use same char to avoid pointlessness memory 150 * Thus, rsnd_mod_name() should be used immediately 151 * Don't keep pointer 152 */ 153 if ((mod)->ops->id_sub) { 154 snprintf(name, MOD_NAME_SIZE, "%s[%d%d]", 155 mod->ops->name, 156 rsnd_mod_id(mod), 157 rsnd_mod_id_sub(mod)); 158 } else { 159 snprintf(name, MOD_NAME_SIZE, "%s[%d]", 160 mod->ops->name, 161 rsnd_mod_id(mod)); 162 } 163 164 return name; 165} 166 167u32 *rsnd_mod_get_status(struct rsnd_mod *mod, 168 struct rsnd_dai_stream *io, 169 enum rsnd_mod_type type) 170{ 171 return &mod->status; 172} 173 174int rsnd_mod_id_raw(struct rsnd_mod *mod) 175{ 176 return mod->id; 177} 178 179int rsnd_mod_id(struct rsnd_mod *mod) 180{ 181 if ((mod)->ops->id) 182 return (mod)->ops->id(mod); 183 184 return rsnd_mod_id_raw(mod); 185} 186 187int rsnd_mod_id_sub(struct rsnd_mod *mod) 188{ 189 if ((mod)->ops->id_sub) 190 return (mod)->ops->id_sub(mod); 191 192 return 0; 193} 194 195int rsnd_mod_init(struct rsnd_priv *priv, 196 struct rsnd_mod *mod, 197 struct rsnd_mod_ops *ops, 198 struct clk *clk, 199 enum rsnd_mod_type type, 200 int id) 201{ 202 int ret = clk_prepare(clk); 203 204 if (ret) 205 return ret; 206 207 mod->id = id; 208 mod->ops = ops; 209 mod->type = type; 210 mod->clk = clk; 211 mod->priv = priv; 212 213 return 0; 214} 215 216void rsnd_mod_quit(struct rsnd_mod *mod) 217{ 218 clk_unprepare(mod->clk); 219 mod->clk = NULL; 220} 221 222void rsnd_mod_interrupt(struct rsnd_mod *mod, 223 void (*callback)(struct rsnd_mod *mod, 224 struct rsnd_dai_stream *io)) 225{ 226 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); 227 struct rsnd_dai *rdai; 228 int i; 229 230 for_each_rsnd_dai(rdai, priv, i) { 231 struct rsnd_dai_stream *io = &rdai->playback; 232 233 if (mod == io->mod[mod->type]) 234 callback(mod, io); 235 236 io = &rdai->capture; 237 if (mod == io->mod[mod->type]) 238 callback(mod, io); 239 } 240} 241 242int rsnd_io_is_working(struct rsnd_dai_stream *io) 243{ 244 /* see rsnd_dai_stream_init/quit() */ 245 if (io->substream) 246 return snd_pcm_running(io->substream); 247 248 return 0; 249} 250 251int rsnd_runtime_channel_original_with_params(struct rsnd_dai_stream *io, 252 struct snd_pcm_hw_params *params) 253{ 254 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); 255 256 /* 257 * params will be added when refine 258 * see 259 * __rsnd_soc_hw_rule_rate() 260 * __rsnd_soc_hw_rule_channels() 261 */ 262 if (params) 263 return params_channels(params); 264 else if (runtime) 265 return runtime->channels; 266 return 0; 267} 268 269int rsnd_runtime_channel_after_ctu_with_params(struct rsnd_dai_stream *io, 270 struct snd_pcm_hw_params *params) 271{ 272 int chan = rsnd_runtime_channel_original_with_params(io, params); 273 struct rsnd_mod *ctu_mod = rsnd_io_to_mod_ctu(io); 274 275 if (ctu_mod) { 276 u32 converted_chan = rsnd_io_converted_chan(io); 277 278 /* 279 * !! Note !! 280 * 281 * converted_chan will be used for CTU, 282 * or TDM Split mode. 283 * User shouldn't use CTU with TDM Split mode. 284 */ 285 if (rsnd_runtime_is_tdm_split(io)) { 286 struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); 287 288 dev_err(dev, "CTU and TDM Split should be used\n"); 289 } 290 291 if (converted_chan) 292 return converted_chan; 293 } 294 295 return chan; 296} 297 298int rsnd_channel_normalization(int chan) 299{ 300 if (WARN_ON((chan > 8) || (chan < 0))) 301 return 0; 302 303 /* TDM Extend Mode needs 8ch */ 304 if (chan == 6) 305 chan = 8; 306 307 return chan; 308} 309 310int rsnd_runtime_channel_for_ssi_with_params(struct rsnd_dai_stream *io, 311 struct snd_pcm_hw_params *params) 312{ 313 struct rsnd_dai *rdai = rsnd_io_to_rdai(io); 314 int chan = rsnd_io_is_play(io) ? 315 rsnd_runtime_channel_after_ctu_with_params(io, params) : 316 rsnd_runtime_channel_original_with_params(io, params); 317 318 /* Use Multi SSI */ 319 if (rsnd_runtime_is_multi_ssi(io)) 320 chan /= rsnd_rdai_ssi_lane_get(rdai); 321 322 return rsnd_channel_normalization(chan); 323} 324 325int rsnd_runtime_is_multi_ssi(struct rsnd_dai_stream *io) 326{ 327 struct rsnd_dai *rdai = rsnd_io_to_rdai(io); 328 int lane = rsnd_rdai_ssi_lane_get(rdai); 329 int chan = rsnd_io_is_play(io) ? 330 rsnd_runtime_channel_after_ctu(io) : 331 rsnd_runtime_channel_original(io); 332 333 return (chan > 2) && (lane > 1); 334} 335 336int rsnd_runtime_is_tdm(struct rsnd_dai_stream *io) 337{ 338 return rsnd_runtime_channel_for_ssi(io) >= 6; 339} 340 341int rsnd_runtime_is_tdm_split(struct rsnd_dai_stream *io) 342{ 343 return !!rsnd_flags_has(io, RSND_STREAM_TDM_SPLIT); 344} 345 346/* 347 * ADINR function 348 */ 349u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io) 350{ 351 struct rsnd_priv *priv = rsnd_mod_to_priv(mod); 352 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); 353 struct device *dev = rsnd_priv_to_dev(priv); 354 355 switch (snd_pcm_format_width(runtime->format)) { 356 case 8: 357 return 16 << 16; 358 case 16: 359 return 8 << 16; 360 case 24: 361 return 0 << 16; 362 } 363 364 dev_warn(dev, "not supported sample bits\n"); 365 366 return 0; 367} 368 369/* 370 * DALIGN function 371 */ 372u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io) 373{ 374 static const u32 dalign_values[8] = { 375 0x76543210, 0x00000032, 0x00007654, 0x00000076, 376 0xfedcba98, 0x000000ba, 0x0000fedc, 0x000000fe, 377 }; 378 int id = 0; 379 struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io); 380 struct rsnd_mod *target; 381 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); 382 u32 dalign; 383 384 /* 385 * *Hardware* L/R and *Software* L/R are inverted for 16bit data. 386 * 31..16 15...0 387 * HW: [L ch] [R ch] 388 * SW: [R ch] [L ch] 389 * We need to care about inversion timing to control 390 * Playback/Capture correctly. 391 * The point is [DVC] needs *Hardware* L/R, [MEM] needs *Software* L/R 392 * 393 * sL/R : software L/R 394 * hL/R : hardware L/R 395 * (*) : conversion timing 396 * 397 * Playback 398 * sL/R (*) hL/R hL/R hL/R hL/R hL/R 399 * [MEM] -> [SRC] -> [DVC] -> [CMD] -> [SSIU] -> [SSI] -> codec 400 * 401 * Capture 402 * hL/R hL/R hL/R hL/R hL/R (*) sL/R 403 * codec -> [SSI] -> [SSIU] -> [SRC] -> [DVC] -> [CMD] -> [MEM] 404 */ 405 if (rsnd_io_is_play(io)) { 406 struct rsnd_mod *src = rsnd_io_to_mod_src(io); 407 408 target = src ? src : ssiu; 409 } else { 410 struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io); 411 412 target = cmd ? cmd : ssiu; 413 } 414 415 if (mod == ssiu) 416 id = rsnd_mod_id_sub(mod); 417 418 dalign = dalign_values[id]; 419 420 if (mod == target && snd_pcm_format_width(runtime->format) == 16) { 421 /* Target mod needs inverted DALIGN when 16bit */ 422 dalign = (dalign & 0xf0f0f0f0) >> 4 | 423 (dalign & 0x0f0f0f0f) << 4; 424 } 425 426 return dalign; 427} 428 429u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod) 430{ 431 static const enum rsnd_mod_type playback_mods[] = { 432 RSND_MOD_SRC, 433 RSND_MOD_CMD, 434 RSND_MOD_SSIU, 435 }; 436 static const enum rsnd_mod_type capture_mods[] = { 437 RSND_MOD_CMD, 438 RSND_MOD_SRC, 439 RSND_MOD_SSIU, 440 }; 441 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); 442 struct rsnd_mod *tmod = NULL; 443 const enum rsnd_mod_type *mods = 444 rsnd_io_is_play(io) ? 445 playback_mods : capture_mods; 446 int i; 447 448 /* 449 * This is needed for 24bit data 450 * We need to shift 8bit 451 * 452 * Linux 24bit data is located as 0x00****** 453 * HW 24bit data is located as 0x******00 454 * 455 */ 456 if (snd_pcm_format_width(runtime->format) != 24) 457 return 0; 458 459 for (i = 0; i < ARRAY_SIZE(playback_mods); i++) { 460 tmod = rsnd_io_to_mod(io, mods[i]); 461 if (tmod) 462 break; 463 } 464 465 if (tmod != mod) 466 return 0; 467 468 if (rsnd_io_is_play(io)) 469 return (0 << 20) | /* shift to Left */ 470 (8 << 16); /* 8bit */ 471 else 472 return (1 << 20) | /* shift to Right */ 473 (8 << 16); /* 8bit */ 474} 475 476/* 477 * rsnd_dai functions 478 */ 479struct rsnd_mod *rsnd_mod_next(int *iterator, 480 struct rsnd_dai_stream *io, 481 enum rsnd_mod_type *array, 482 int array_size) 483{ 484 int max = array ? array_size : RSND_MOD_MAX; 485 486 for (; *iterator < max; (*iterator)++) { 487 enum rsnd_mod_type type = (array) ? array[*iterator] : *iterator; 488 struct rsnd_mod *mod = rsnd_io_to_mod(io, type); 489 490 if (mod) 491 return mod; 492 } 493 494 return NULL; 495} 496 497static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = { 498 { 499 /* CAPTURE */ 500 RSND_MOD_AUDMAPP, 501 RSND_MOD_AUDMA, 502 RSND_MOD_DVC, 503 RSND_MOD_MIX, 504 RSND_MOD_CTU, 505 RSND_MOD_CMD, 506 RSND_MOD_SRC, 507 RSND_MOD_SSIU, 508 RSND_MOD_SSIM3, 509 RSND_MOD_SSIM2, 510 RSND_MOD_SSIM1, 511 RSND_MOD_SSIP, 512 RSND_MOD_SSI, 513 }, { 514 /* PLAYBACK */ 515 RSND_MOD_AUDMAPP, 516 RSND_MOD_AUDMA, 517 RSND_MOD_SSIM3, 518 RSND_MOD_SSIM2, 519 RSND_MOD_SSIM1, 520 RSND_MOD_SSIP, 521 RSND_MOD_SSI, 522 RSND_MOD_SSIU, 523 RSND_MOD_DVC, 524 RSND_MOD_MIX, 525 RSND_MOD_CTU, 526 RSND_MOD_CMD, 527 RSND_MOD_SRC, 528 }, 529}; 530 531static int rsnd_status_update(struct rsnd_dai_stream *io, 532 struct rsnd_mod *mod, enum rsnd_mod_type type, 533 int shift, int add, int timing) 534{ 535 u32 *status = mod->ops->get_status(mod, io, type); 536 u32 mask = 0xF << shift; 537 u8 val = (*status >> shift) & 0xF; 538 u8 next_val = (val + add) & 0xF; 539 int func_call = (val == timing); 540 541 /* no status update */ 542 if (add == 0 || shift == 28) 543 return 1; 544 545 if (next_val == 0xF) /* underflow case */ 546 func_call = -1; 547 else 548 *status = (*status & ~mask) + (next_val << shift); 549 550 return func_call; 551} 552 553#define rsnd_dai_call(fn, io, param...) \ 554({ \ 555 struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); \ 556 struct rsnd_mod *mod; \ 557 int is_play = rsnd_io_is_play(io); \ 558 int ret = 0, i; \ 559 enum rsnd_mod_type *types = rsnd_mod_sequence[is_play]; \ 560 for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) { \ 561 int tmp = 0; \ 562 int func_call = rsnd_status_update(io, mod, types[i], \ 563 __rsnd_mod_shift_##fn, \ 564 __rsnd_mod_add_##fn, \ 565 __rsnd_mod_call_##fn); \ 566 if (func_call > 0 && (mod)->ops->fn) \ 567 tmp = (mod)->ops->fn(mod, io, param); \ 568 if (unlikely(func_call < 0) || \ 569 unlikely(tmp && (tmp != -EPROBE_DEFER))) \ 570 dev_err(dev, "%s : %s error (%d, %d)\n", \ 571 rsnd_mod_name(mod), #fn, tmp, func_call);\ 572 ret |= tmp; \ 573 } \ 574 ret; \ 575}) 576 577int rsnd_dai_connect(struct rsnd_mod *mod, 578 struct rsnd_dai_stream *io, 579 enum rsnd_mod_type type) 580{ 581 struct rsnd_priv *priv; 582 struct device *dev; 583 584 if (!mod) 585 return -EIO; 586 587 if (io->mod[type] == mod) 588 return 0; 589 590 if (io->mod[type]) 591 return -EINVAL; 592 593 priv = rsnd_mod_to_priv(mod); 594 dev = rsnd_priv_to_dev(priv); 595 596 io->mod[type] = mod; 597 598 dev_dbg(dev, "%s is connected to io (%s)\n", 599 rsnd_mod_name(mod), 600 rsnd_io_is_play(io) ? "Playback" : "Capture"); 601 602 return 0; 603} 604 605static void rsnd_dai_disconnect(struct rsnd_mod *mod, 606 struct rsnd_dai_stream *io, 607 enum rsnd_mod_type type) 608{ 609 io->mod[type] = NULL; 610} 611 612int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai, 613 int max_channels) 614{ 615 if (max_channels > 0) 616 rdai->max_channels = max_channels; 617 618 return rdai->max_channels; 619} 620 621int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai, 622 int ssi_lane) 623{ 624 if (ssi_lane > 0) 625 rdai->ssi_lane = ssi_lane; 626 627 return rdai->ssi_lane; 628} 629 630int rsnd_rdai_width_ctrl(struct rsnd_dai *rdai, int width) 631{ 632 if (width > 0) 633 rdai->chan_width = width; 634 635 return rdai->chan_width; 636} 637 638struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id) 639{ 640 if ((id < 0) || (id >= rsnd_rdai_nr(priv))) 641 return NULL; 642 643 return priv->rdai + id; 644} 645 646static struct snd_soc_dai_driver 647*rsnd_daidrv_get(struct rsnd_priv *priv, int id) 648{ 649 if ((id < 0) || (id >= rsnd_rdai_nr(priv))) 650 return NULL; 651 652 return priv->daidrv + id; 653} 654 655#define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai) 656static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai) 657{ 658 struct rsnd_priv *priv = rsnd_dai_to_priv(dai); 659 660 return rsnd_rdai_get(priv, dai->id); 661} 662 663/* 664 * rsnd_soc_dai functions 665 */ 666void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io) 667{ 668 struct snd_pcm_substream *substream = io->substream; 669 670 /* 671 * this function should be called... 672 * 673 * - if rsnd_dai_pointer_update() returns true 674 * - without spin lock 675 */ 676 677 snd_pcm_period_elapsed(substream); 678} 679 680static void rsnd_dai_stream_init(struct rsnd_dai_stream *io, 681 struct snd_pcm_substream *substream) 682{ 683 io->substream = substream; 684} 685 686static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io) 687{ 688 io->substream = NULL; 689} 690 691static 692struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream) 693{ 694 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 695 696 return snd_soc_rtd_to_cpu(rtd, 0); 697} 698 699static 700struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai, 701 struct snd_pcm_substream *substream) 702{ 703 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) 704 return &rdai->playback; 705 else 706 return &rdai->capture; 707} 708 709static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd, 710 struct snd_soc_dai *dai) 711{ 712 struct rsnd_priv *priv = rsnd_dai_to_priv(dai); 713 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 714 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 715 int ret; 716 unsigned long flags; 717 718 spin_lock_irqsave(&priv->lock, flags); 719 720 switch (cmd) { 721 case SNDRV_PCM_TRIGGER_START: 722 case SNDRV_PCM_TRIGGER_RESUME: 723 ret = rsnd_dai_call(init, io, priv); 724 if (ret < 0) 725 goto dai_trigger_end; 726 727 ret = rsnd_dai_call(start, io, priv); 728 if (ret < 0) 729 goto dai_trigger_end; 730 731 ret = rsnd_dai_call(irq, io, priv, 1); 732 if (ret < 0) 733 goto dai_trigger_end; 734 735 break; 736 case SNDRV_PCM_TRIGGER_STOP: 737 case SNDRV_PCM_TRIGGER_SUSPEND: 738 ret = rsnd_dai_call(irq, io, priv, 0); 739 740 ret |= rsnd_dai_call(stop, io, priv); 741 742 ret |= rsnd_dai_call(quit, io, priv); 743 744 break; 745 default: 746 ret = -EINVAL; 747 } 748 749dai_trigger_end: 750 spin_unlock_irqrestore(&priv->lock, flags); 751 752 return ret; 753} 754 755static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt) 756{ 757 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 758 759 /* set clock master for audio interface */ 760 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) { 761 case SND_SOC_DAIFMT_BC_FC: 762 rdai->clk_master = 0; 763 break; 764 case SND_SOC_DAIFMT_BP_FP: 765 rdai->clk_master = 1; /* cpu is master */ 766 break; 767 default: 768 return -EINVAL; 769 } 770 771 /* set format */ 772 rdai->bit_clk_inv = 0; 773 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 774 case SND_SOC_DAIFMT_I2S: 775 rdai->sys_delay = 0; 776 rdai->data_alignment = 0; 777 rdai->frm_clk_inv = 0; 778 break; 779 case SND_SOC_DAIFMT_LEFT_J: 780 case SND_SOC_DAIFMT_DSP_B: 781 rdai->sys_delay = 1; 782 rdai->data_alignment = 0; 783 rdai->frm_clk_inv = 1; 784 break; 785 case SND_SOC_DAIFMT_RIGHT_J: 786 rdai->sys_delay = 1; 787 rdai->data_alignment = 1; 788 rdai->frm_clk_inv = 1; 789 break; 790 case SND_SOC_DAIFMT_DSP_A: 791 rdai->sys_delay = 0; 792 rdai->data_alignment = 0; 793 rdai->frm_clk_inv = 1; 794 break; 795 } 796 797 /* set clock inversion */ 798 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 799 case SND_SOC_DAIFMT_NB_IF: 800 rdai->frm_clk_inv = !rdai->frm_clk_inv; 801 break; 802 case SND_SOC_DAIFMT_IB_NF: 803 rdai->bit_clk_inv = !rdai->bit_clk_inv; 804 break; 805 case SND_SOC_DAIFMT_IB_IF: 806 rdai->bit_clk_inv = !rdai->bit_clk_inv; 807 rdai->frm_clk_inv = !rdai->frm_clk_inv; 808 break; 809 case SND_SOC_DAIFMT_NB_NF: 810 default: 811 break; 812 } 813 814 return 0; 815} 816 817static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai, 818 u32 tx_mask, u32 rx_mask, 819 int slots, int slot_width) 820{ 821 struct rsnd_priv *priv = rsnd_dai_to_priv(dai); 822 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 823 struct device *dev = rsnd_priv_to_dev(priv); 824 825 switch (slot_width) { 826 case 16: 827 case 24: 828 case 32: 829 break; 830 default: 831 /* use default */ 832 /* 833 * Indicate warning if DT has "dai-tdm-slot-width" 834 * but the value was not expected. 835 */ 836 if (slot_width) 837 dev_warn(dev, "unsupported TDM slot width (%d), force to use default 32\n", 838 slot_width); 839 slot_width = 32; 840 } 841 842 switch (slots) { 843 case 2: 844 /* TDM Split Mode */ 845 case 6: 846 case 8: 847 /* TDM Extend Mode */ 848 rsnd_rdai_channels_set(rdai, slots); 849 rsnd_rdai_ssi_lane_set(rdai, 1); 850 rsnd_rdai_width_set(rdai, slot_width); 851 break; 852 default: 853 dev_err(dev, "unsupported TDM slots (%d)\n", slots); 854 return -EINVAL; 855 } 856 857 return 0; 858} 859 860static unsigned int rsnd_soc_hw_channels_list[] = { 861 2, 6, 8, 862}; 863 864static unsigned int rsnd_soc_hw_rate_list[] = { 865 8000, 866 11025, 867 16000, 868 22050, 869 32000, 870 44100, 871 48000, 872 64000, 873 88200, 874 96000, 875 176400, 876 192000, 877}; 878 879static int rsnd_soc_hw_rule(struct rsnd_dai *rdai, 880 unsigned int *list, int list_num, 881 struct snd_interval *baseline, struct snd_interval *iv, 882 struct rsnd_dai_stream *io, char *unit) 883{ 884 struct snd_interval p; 885 unsigned int rate; 886 int i; 887 888 snd_interval_any(&p); 889 p.min = UINT_MAX; 890 p.max = 0; 891 892 for (i = 0; i < list_num; i++) { 893 894 if (!snd_interval_test(iv, list[i])) 895 continue; 896 897 rate = rsnd_ssi_clk_query(rdai, 898 baseline->min, list[i], NULL); 899 if (rate > 0) { 900 p.min = min(p.min, list[i]); 901 p.max = max(p.max, list[i]); 902 } 903 904 rate = rsnd_ssi_clk_query(rdai, 905 baseline->max, list[i], NULL); 906 if (rate > 0) { 907 p.min = min(p.min, list[i]); 908 p.max = max(p.max, list[i]); 909 } 910 } 911 912 /* Indicate error once if it can't handle */ 913 if (!rsnd_flags_has(io, RSND_HW_RULE_ERR) && (p.min > p.max)) { 914 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); 915 struct device *dev = rsnd_priv_to_dev(priv); 916 917 dev_warn(dev, "It can't handle %d %s <-> %d %s\n", 918 baseline->min, unit, baseline->max, unit); 919 rsnd_flags_set(io, RSND_HW_RULE_ERR); 920 } 921 922 return snd_interval_refine(iv, &p); 923} 924 925static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params, 926 struct snd_pcm_hw_rule *rule) 927{ 928 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 929 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 930 struct snd_interval ic; 931 struct rsnd_dai_stream *io = rule->private; 932 struct rsnd_dai *rdai = rsnd_io_to_rdai(io); 933 934 /* 935 * possible sampling rate limitation is same as 936 * 2ch if it supports multi ssi 937 * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init()) 938 */ 939 ic = *ic_; 940 ic.min = 941 ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params); 942 943 return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_rate_list, 944 ARRAY_SIZE(rsnd_soc_hw_rate_list), 945 &ic, ir, io, "ch"); 946} 947 948static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params, 949 struct snd_pcm_hw_rule *rule) 950{ 951 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 952 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 953 struct snd_interval ic; 954 struct rsnd_dai_stream *io = rule->private; 955 struct rsnd_dai *rdai = rsnd_io_to_rdai(io); 956 957 /* 958 * possible sampling rate limitation is same as 959 * 2ch if it supports multi ssi 960 * and same as 8ch if TDM 6ch (see rsnd_ssi_config_init()) 961 */ 962 ic = *ic_; 963 ic.min = 964 ic.max = rsnd_runtime_channel_for_ssi_with_params(io, params); 965 966 return rsnd_soc_hw_rule(rdai, rsnd_soc_hw_channels_list, 967 ARRAY_SIZE(rsnd_soc_hw_channels_list), 968 ir, &ic, io, "Hz"); 969} 970 971static const struct snd_pcm_hardware rsnd_pcm_hardware = { 972 .info = SNDRV_PCM_INFO_INTERLEAVED | 973 SNDRV_PCM_INFO_MMAP | 974 SNDRV_PCM_INFO_MMAP_VALID, 975 .buffer_bytes_max = 64 * 1024, 976 .period_bytes_min = 32, 977 .period_bytes_max = 8192, 978 .periods_min = 1, 979 .periods_max = 32, 980 .fifo_size = 256, 981}; 982 983static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream, 984 struct snd_soc_dai *dai) 985{ 986 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 987 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 988 struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint; 989 struct snd_pcm_runtime *runtime = substream->runtime; 990 unsigned int max_channels = rsnd_rdai_channels_get(rdai); 991 int i; 992 993 rsnd_flags_del(io, RSND_HW_RULE_ERR); 994 995 rsnd_dai_stream_init(io, substream); 996 997 /* 998 * Channel Limitation 999 * It depends on Platform design 1000 */ 1001 constraint->list = rsnd_soc_hw_channels_list; 1002 constraint->count = 0; 1003 constraint->mask = 0; 1004 1005 for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) { 1006 if (rsnd_soc_hw_channels_list[i] > max_channels) 1007 break; 1008 constraint->count = i + 1; 1009 } 1010 1011 snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware); 1012 1013 snd_pcm_hw_constraint_list(runtime, 0, 1014 SNDRV_PCM_HW_PARAM_CHANNELS, constraint); 1015 1016 snd_pcm_hw_constraint_integer(runtime, 1017 SNDRV_PCM_HW_PARAM_PERIODS); 1018 1019 /* 1020 * Sampling Rate / Channel Limitation 1021 * It depends on Clock Master Mode 1022 */ 1023 if (rsnd_rdai_is_clk_master(rdai)) { 1024 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; 1025 1026 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 1027 rsnd_soc_hw_rule_rate, 1028 is_play ? &rdai->playback : &rdai->capture, 1029 SNDRV_PCM_HW_PARAM_CHANNELS, -1); 1030 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 1031 rsnd_soc_hw_rule_channels, 1032 is_play ? &rdai->playback : &rdai->capture, 1033 SNDRV_PCM_HW_PARAM_RATE, -1); 1034 } 1035 1036 return 0; 1037} 1038 1039static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream, 1040 struct snd_soc_dai *dai) 1041{ 1042 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 1043 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); 1044 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 1045 1046 /* 1047 * call rsnd_dai_call without spinlock 1048 */ 1049 rsnd_dai_call(cleanup, io, priv); 1050 1051 rsnd_dai_stream_quit(io); 1052} 1053 1054static int rsnd_soc_dai_prepare(struct snd_pcm_substream *substream, 1055 struct snd_soc_dai *dai) 1056{ 1057 struct rsnd_priv *priv = rsnd_dai_to_priv(dai); 1058 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 1059 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 1060 1061 return rsnd_dai_call(prepare, io, priv); 1062} 1063 1064static u64 rsnd_soc_dai_formats[] = { 1065 /* 1066 * 1st Priority 1067 * 1068 * Well tested formats. 1069 * Select below from Sound Card, not auto 1070 * SND_SOC_DAIFMT_CBC_CFC 1071 * SND_SOC_DAIFMT_CBP_CFP 1072 */ 1073 SND_SOC_POSSIBLE_DAIFMT_I2S | 1074 SND_SOC_POSSIBLE_DAIFMT_RIGHT_J | 1075 SND_SOC_POSSIBLE_DAIFMT_LEFT_J | 1076 SND_SOC_POSSIBLE_DAIFMT_NB_NF | 1077 SND_SOC_POSSIBLE_DAIFMT_NB_IF | 1078 SND_SOC_POSSIBLE_DAIFMT_IB_NF | 1079 SND_SOC_POSSIBLE_DAIFMT_IB_IF, 1080 /* 1081 * 2nd Priority 1082 * 1083 * Supported, but not well tested 1084 */ 1085 SND_SOC_POSSIBLE_DAIFMT_DSP_A | 1086 SND_SOC_POSSIBLE_DAIFMT_DSP_B, 1087}; 1088 1089static void rsnd_parse_tdm_split_mode(struct rsnd_priv *priv, 1090 struct rsnd_dai_stream *io, 1091 struct device_node *dai_np) 1092{ 1093 struct device *dev = rsnd_priv_to_dev(priv); 1094 struct device_node *ssiu_np = rsnd_ssiu_of_node(priv); 1095 struct device_node *np; 1096 int is_play = rsnd_io_is_play(io); 1097 int i; 1098 1099 if (!ssiu_np) 1100 return; 1101 1102 /* 1103 * This driver assumes that it is TDM Split mode 1104 * if it includes ssiu node 1105 */ 1106 for (i = 0;; i++) { 1107 struct device_node *node = is_play ? 1108 of_parse_phandle(dai_np, "playback", i) : 1109 of_parse_phandle(dai_np, "capture", i); 1110 1111 if (!node) 1112 break; 1113 1114 for_each_child_of_node(ssiu_np, np) { 1115 if (np == node) { 1116 rsnd_flags_set(io, RSND_STREAM_TDM_SPLIT); 1117 dev_dbg(dev, "%s is part of TDM Split\n", io->name); 1118 } 1119 } 1120 1121 of_node_put(node); 1122 } 1123 1124 of_node_put(ssiu_np); 1125} 1126 1127static void rsnd_parse_connect_simple(struct rsnd_priv *priv, 1128 struct rsnd_dai_stream *io, 1129 struct device_node *dai_np) 1130{ 1131 if (!rsnd_io_to_mod_ssi(io)) 1132 return; 1133 1134 rsnd_parse_tdm_split_mode(priv, io, dai_np); 1135} 1136 1137static void rsnd_parse_connect_graph(struct rsnd_priv *priv, 1138 struct rsnd_dai_stream *io, 1139 struct device_node *endpoint) 1140{ 1141 struct device *dev = rsnd_priv_to_dev(priv); 1142 struct device_node *remote_node; 1143 1144 if (!rsnd_io_to_mod_ssi(io)) 1145 return; 1146 1147 remote_node = of_graph_get_remote_port_parent(endpoint); 1148 1149 /* HDMI0 */ 1150 if (strstr(remote_node->full_name, "hdmi@fead0000")) { 1151 rsnd_flags_set(io, RSND_STREAM_HDMI0); 1152 dev_dbg(dev, "%s connected to HDMI0\n", io->name); 1153 } 1154 1155 /* HDMI1 */ 1156 if (strstr(remote_node->full_name, "hdmi@feae0000")) { 1157 rsnd_flags_set(io, RSND_STREAM_HDMI1); 1158 dev_dbg(dev, "%s connected to HDMI1\n", io->name); 1159 } 1160 1161 rsnd_parse_tdm_split_mode(priv, io, endpoint); 1162 1163 of_node_put(remote_node); 1164} 1165 1166void rsnd_parse_connect_common(struct rsnd_dai *rdai, char *name, 1167 struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id), 1168 struct device_node *node, 1169 struct device_node *playback, 1170 struct device_node *capture) 1171{ 1172 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai); 1173 struct device *dev = rsnd_priv_to_dev(priv); 1174 struct device_node *np; 1175 int i; 1176 1177 if (!node) 1178 return; 1179 1180 i = 0; 1181 for_each_child_of_node(node, np) { 1182 struct rsnd_mod *mod; 1183 1184 i = rsnd_node_fixed_index(dev, np, name, i); 1185 if (i < 0) { 1186 of_node_put(np); 1187 break; 1188 } 1189 1190 mod = mod_get(priv, i); 1191 1192 if (np == playback) 1193 rsnd_dai_connect(mod, &rdai->playback, mod->type); 1194 if (np == capture) 1195 rsnd_dai_connect(mod, &rdai->capture, mod->type); 1196 i++; 1197 } 1198 1199 of_node_put(node); 1200} 1201 1202int rsnd_node_fixed_index(struct device *dev, struct device_node *node, char *name, int idx) 1203{ 1204 char node_name[16]; 1205 1206 /* 1207 * rsnd is assuming each device nodes are sequential numbering, 1208 * but some of them are not. 1209 * This function adjusts index for it. 1210 * 1211 * ex) 1212 * Normal case, special case 1213 * ssi-0 1214 * ssi-1 1215 * ssi-2 1216 * ssi-3 ssi-3 1217 * ssi-4 ssi-4 1218 * ... 1219 * 1220 * assume Max 64 node 1221 */ 1222 for (; idx < 64; idx++) { 1223 snprintf(node_name, sizeof(node_name), "%s-%d", name, idx); 1224 1225 if (strncmp(node_name, of_node_full_name(node), sizeof(node_name)) == 0) 1226 return idx; 1227 } 1228 1229 dev_err(dev, "strange node numbering (%s)", 1230 of_node_full_name(node)); 1231 return -EINVAL; 1232} 1233 1234int rsnd_node_count(struct rsnd_priv *priv, struct device_node *node, char *name) 1235{ 1236 struct device *dev = rsnd_priv_to_dev(priv); 1237 struct device_node *np; 1238 int i; 1239 1240 i = 0; 1241 for_each_child_of_node(node, np) { 1242 i = rsnd_node_fixed_index(dev, np, name, i); 1243 if (i < 0) { 1244 of_node_put(np); 1245 return 0; 1246 } 1247 i++; 1248 } 1249 1250 return i; 1251} 1252 1253static int rsnd_dai_of_node(struct rsnd_priv *priv, int *is_graph) 1254{ 1255 struct device *dev = rsnd_priv_to_dev(priv); 1256 struct device_node *np = dev->of_node; 1257 struct device_node *ports, *node; 1258 int nr = 0; 1259 int i = 0; 1260 1261 *is_graph = 0; 1262 1263 /* 1264 * parse both previous dai (= rcar_sound,dai), and 1265 * graph dai (= ports/port) 1266 */ 1267 1268 /* 1269 * Simple-Card 1270 */ 1271 node = of_get_child_by_name(np, RSND_NODE_DAI); 1272 if (!node) 1273 goto audio_graph; 1274 1275 of_node_put(node); 1276 1277 for_each_child_of_node(np, node) { 1278 if (!of_node_name_eq(node, RSND_NODE_DAI)) 1279 continue; 1280 1281 priv->component_dais[i] = of_get_child_count(node); 1282 nr += priv->component_dais[i]; 1283 i++; 1284 if (i >= RSND_MAX_COMPONENT) { 1285 dev_info(dev, "reach to max component\n"); 1286 of_node_put(node); 1287 break; 1288 } 1289 } 1290 1291 return nr; 1292 1293audio_graph: 1294 /* 1295 * Audio-Graph-Card 1296 */ 1297 for_each_child_of_node(np, ports) { 1298 if (!of_node_name_eq(ports, "ports") && 1299 !of_node_name_eq(ports, "port")) 1300 continue; 1301 priv->component_dais[i] = of_graph_get_endpoint_count(ports); 1302 nr += priv->component_dais[i]; 1303 i++; 1304 if (i >= RSND_MAX_COMPONENT) { 1305 dev_info(dev, "reach to max component\n"); 1306 of_node_put(ports); 1307 break; 1308 } 1309 } 1310 1311 *is_graph = 1; 1312 1313 return nr; 1314} 1315 1316 1317#define PREALLOC_BUFFER (32 * 1024) 1318#define PREALLOC_BUFFER_MAX (32 * 1024) 1319 1320static int rsnd_preallocate_pages(struct snd_soc_pcm_runtime *rtd, 1321 struct rsnd_dai_stream *io, 1322 int stream) 1323{ 1324 struct rsnd_priv *priv = rsnd_io_to_priv(io); 1325 struct device *dev = rsnd_priv_to_dev(priv); 1326 struct snd_pcm_substream *substream; 1327 1328 /* 1329 * use Audio-DMAC dev if we can use IPMMU 1330 * see 1331 * rsnd_dmaen_attach() 1332 */ 1333 if (io->dmac_dev) 1334 dev = io->dmac_dev; 1335 1336 for (substream = rtd->pcm->streams[stream].substream; 1337 substream; 1338 substream = substream->next) { 1339 snd_pcm_set_managed_buffer(substream, 1340 SNDRV_DMA_TYPE_DEV, 1341 dev, 1342 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX); 1343 } 1344 1345 return 0; 1346} 1347 1348static int rsnd_soc_dai_pcm_new(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai) 1349{ 1350 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 1351 int ret; 1352 1353 ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd); 1354 if (ret) 1355 return ret; 1356 1357 ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd); 1358 if (ret) 1359 return ret; 1360 1361 ret = rsnd_preallocate_pages(rtd, &rdai->playback, 1362 SNDRV_PCM_STREAM_PLAYBACK); 1363 if (ret) 1364 return ret; 1365 1366 ret = rsnd_preallocate_pages(rtd, &rdai->capture, 1367 SNDRV_PCM_STREAM_CAPTURE); 1368 if (ret) 1369 return ret; 1370 1371 return 0; 1372} 1373 1374static const struct snd_soc_dai_ops rsnd_soc_dai_ops = { 1375 .pcm_new = rsnd_soc_dai_pcm_new, 1376 .startup = rsnd_soc_dai_startup, 1377 .shutdown = rsnd_soc_dai_shutdown, 1378 .trigger = rsnd_soc_dai_trigger, 1379 .set_fmt = rsnd_soc_dai_set_fmt, 1380 .set_tdm_slot = rsnd_soc_set_dai_tdm_slot, 1381 .prepare = rsnd_soc_dai_prepare, 1382 .auto_selectable_formats = rsnd_soc_dai_formats, 1383 .num_auto_selectable_formats = ARRAY_SIZE(rsnd_soc_dai_formats), 1384}; 1385 1386static void __rsnd_dai_probe(struct rsnd_priv *priv, 1387 struct device_node *dai_np, 1388 struct device_node *node_np, 1389 uint32_t node_arg, 1390 int dai_i) 1391{ 1392 struct rsnd_dai_stream *io_playback; 1393 struct rsnd_dai_stream *io_capture; 1394 struct snd_soc_dai_driver *drv; 1395 struct rsnd_dai *rdai; 1396 struct device *dev = rsnd_priv_to_dev(priv); 1397 int playback_exist = 0, capture_exist = 0; 1398 int io_i; 1399 1400 rdai = rsnd_rdai_get(priv, dai_i); 1401 drv = rsnd_daidrv_get(priv, dai_i); 1402 io_playback = &rdai->playback; 1403 io_capture = &rdai->capture; 1404 1405 snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i); 1406 1407 /* for multi Component */ 1408 rdai->dai_args.np = node_np; 1409 rdai->dai_args.args_count = 1; 1410 rdai->dai_args.args[0] = node_arg; 1411 1412 rdai->priv = priv; 1413 drv->name = rdai->name; 1414 drv->ops = &rsnd_soc_dai_ops; 1415 drv->id = dai_i; 1416 drv->dai_args = &rdai->dai_args; 1417 1418 io_playback->rdai = rdai; 1419 io_capture->rdai = rdai; 1420 rsnd_rdai_channels_set(rdai, 2); /* default 2ch */ 1421 rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */ 1422 rsnd_rdai_width_set(rdai, 32); /* default 32bit width */ 1423 1424 for (io_i = 0;; io_i++) { 1425 struct device_node *playback = of_parse_phandle(dai_np, "playback", io_i); 1426 struct device_node *capture = of_parse_phandle(dai_np, "capture", io_i); 1427 1428 if (!playback && !capture) 1429 break; 1430 1431 if (io_i == 0) { 1432 /* check whether playback/capture property exists */ 1433 if (playback) 1434 playback_exist = 1; 1435 if (capture) 1436 capture_exist = 1; 1437 } 1438 1439 rsnd_parse_connect_ssi(rdai, playback, capture); 1440 rsnd_parse_connect_ssiu(rdai, playback, capture); 1441 rsnd_parse_connect_src(rdai, playback, capture); 1442 rsnd_parse_connect_ctu(rdai, playback, capture); 1443 rsnd_parse_connect_mix(rdai, playback, capture); 1444 rsnd_parse_connect_dvc(rdai, playback, capture); 1445 1446 of_node_put(playback); 1447 of_node_put(capture); 1448 } 1449 1450 if (playback_exist) { 1451 snprintf(io_playback->name, RSND_DAI_NAME_SIZE, "DAI%d Playback", dai_i); 1452 drv->playback.rates = RSND_RATES; 1453 drv->playback.formats = RSND_FMTS; 1454 drv->playback.channels_min = 2; 1455 drv->playback.channels_max = 8; 1456 drv->playback.stream_name = io_playback->name; 1457 } 1458 if (capture_exist) { 1459 snprintf(io_capture->name, RSND_DAI_NAME_SIZE, "DAI%d Capture", dai_i); 1460 drv->capture.rates = RSND_RATES; 1461 drv->capture.formats = RSND_FMTS; 1462 drv->capture.channels_min = 2; 1463 drv->capture.channels_max = 8; 1464 drv->capture.stream_name = io_capture->name; 1465 } 1466 1467 if (rsnd_ssi_is_pin_sharing(io_capture) || 1468 rsnd_ssi_is_pin_sharing(io_playback)) { 1469 /* should have symmetric_rate if pin sharing */ 1470 drv->symmetric_rate = 1; 1471 } 1472 1473 dev_dbg(dev, "%s (%s/%s)\n", rdai->name, 1474 rsnd_io_to_mod_ssi(io_playback) ? "play" : " -- ", 1475 rsnd_io_to_mod_ssi(io_capture) ? "capture" : " -- "); 1476} 1477 1478static int rsnd_dai_probe(struct rsnd_priv *priv) 1479{ 1480 struct snd_soc_dai_driver *rdrv; 1481 struct device *dev = rsnd_priv_to_dev(priv); 1482 struct device_node *np = dev->of_node; 1483 struct rsnd_dai *rdai; 1484 int nr = 0; 1485 int is_graph; 1486 int dai_i; 1487 1488 nr = rsnd_dai_of_node(priv, &is_graph); 1489 if (!nr) 1490 return -EINVAL; 1491 1492 rdrv = devm_kcalloc(dev, nr, sizeof(*rdrv), GFP_KERNEL); 1493 rdai = devm_kcalloc(dev, nr, sizeof(*rdai), GFP_KERNEL); 1494 if (!rdrv || !rdai) 1495 return -ENOMEM; 1496 1497 priv->rdai_nr = nr; 1498 priv->daidrv = rdrv; 1499 priv->rdai = rdai; 1500 1501 /* 1502 * parse all dai 1503 */ 1504 dai_i = 0; 1505 if (is_graph) { 1506 struct device_node *ports; 1507 struct device_node *dai_np; 1508 1509 for_each_child_of_node(np, ports) { 1510 if (!of_node_name_eq(ports, "ports") && 1511 !of_node_name_eq(ports, "port")) 1512 continue; 1513 for_each_endpoint_of_node(ports, dai_np) { 1514 __rsnd_dai_probe(priv, dai_np, dai_np, 0, dai_i); 1515 if (rsnd_is_gen3(priv) || rsnd_is_gen4(priv)) { 1516 rdai = rsnd_rdai_get(priv, dai_i); 1517 1518 rsnd_parse_connect_graph(priv, &rdai->playback, dai_np); 1519 rsnd_parse_connect_graph(priv, &rdai->capture, dai_np); 1520 } 1521 dai_i++; 1522 } 1523 } 1524 } else { 1525 struct device_node *node; 1526 struct device_node *dai_np; 1527 1528 for_each_child_of_node(np, node) { 1529 if (!of_node_name_eq(node, RSND_NODE_DAI)) 1530 continue; 1531 1532 for_each_child_of_node(node, dai_np) { 1533 __rsnd_dai_probe(priv, dai_np, np, dai_i, dai_i); 1534 if (rsnd_is_gen3(priv) || rsnd_is_gen4(priv)) { 1535 rdai = rsnd_rdai_get(priv, dai_i); 1536 1537 rsnd_parse_connect_simple(priv, &rdai->playback, dai_np); 1538 rsnd_parse_connect_simple(priv, &rdai->capture, dai_np); 1539 } 1540 dai_i++; 1541 } 1542 } 1543 } 1544 1545 return 0; 1546} 1547 1548/* 1549 * pcm ops 1550 */ 1551static int rsnd_hw_update(struct snd_pcm_substream *substream, 1552 struct snd_pcm_hw_params *hw_params) 1553{ 1554 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); 1555 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 1556 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 1557 struct rsnd_priv *priv = rsnd_io_to_priv(io); 1558 unsigned long flags; 1559 int ret; 1560 1561 spin_lock_irqsave(&priv->lock, flags); 1562 if (hw_params) 1563 ret = rsnd_dai_call(hw_params, io, substream, hw_params); 1564 else 1565 ret = rsnd_dai_call(hw_free, io, substream); 1566 spin_unlock_irqrestore(&priv->lock, flags); 1567 1568 return ret; 1569} 1570 1571static int rsnd_hw_params(struct snd_soc_component *component, 1572 struct snd_pcm_substream *substream, 1573 struct snd_pcm_hw_params *hw_params) 1574{ 1575 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); 1576 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 1577 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 1578 struct snd_soc_pcm_runtime *fe = snd_soc_substream_to_rtd(substream); 1579 1580 /* 1581 * rsnd assumes that it might be used under DPCM if user want to use 1582 * channel / rate convert. Then, rsnd should be FE. 1583 * And then, this function will be called *after* BE settings. 1584 * this means, each BE already has fixuped hw_params. 1585 * see 1586 * dpcm_fe_dai_hw_params() 1587 * dpcm_be_dai_hw_params() 1588 */ 1589 io->converted_rate = 0; 1590 io->converted_chan = 0; 1591 if (fe->dai_link->dynamic) { 1592 struct rsnd_priv *priv = rsnd_io_to_priv(io); 1593 struct device *dev = rsnd_priv_to_dev(priv); 1594 struct snd_soc_dpcm *dpcm; 1595 int stream = substream->stream; 1596 1597 for_each_dpcm_be(fe, stream, dpcm) { 1598 struct snd_soc_pcm_runtime *be = dpcm->be; 1599 struct snd_pcm_hw_params *be_params = &be->dpcm[stream].hw_params; 1600 1601 if (params_channels(hw_params) != params_channels(be_params)) 1602 io->converted_chan = params_channels(be_params); 1603 if (params_rate(hw_params) != params_rate(be_params)) 1604 io->converted_rate = params_rate(be_params); 1605 } 1606 if (io->converted_chan) 1607 dev_dbg(dev, "convert channels = %d\n", io->converted_chan); 1608 if (io->converted_rate) { 1609 /* 1610 * SRC supports convert rates from params_rate(hw_params)/k_down 1611 * to params_rate(hw_params)*k_up, where k_up is always 6, and 1612 * k_down depends on number of channels and SRC unit. 1613 * So all SRC units can upsample audio up to 6 times regardless 1614 * its number of channels. And all SRC units can downsample 1615 * 2 channel audio up to 6 times too. 1616 */ 1617 int k_up = 6; 1618 int k_down = 6; 1619 int channel; 1620 struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io); 1621 1622 dev_dbg(dev, "convert rate = %d\n", io->converted_rate); 1623 1624 channel = io->converted_chan ? io->converted_chan : 1625 params_channels(hw_params); 1626 1627 switch (rsnd_mod_id(src_mod)) { 1628 /* 1629 * SRC0 can downsample 4, 6 and 8 channel audio up to 4 times. 1630 * SRC1, SRC3 and SRC4 can downsample 4 channel audio 1631 * up to 4 times. 1632 * SRC1, SRC3 and SRC4 can downsample 6 and 8 channel audio 1633 * no more than twice. 1634 */ 1635 case 1: 1636 case 3: 1637 case 4: 1638 if (channel > 4) { 1639 k_down = 2; 1640 break; 1641 } 1642 fallthrough; 1643 case 0: 1644 if (channel > 2) 1645 k_down = 4; 1646 break; 1647 1648 /* Other SRC units do not support more than 2 channels */ 1649 default: 1650 if (channel > 2) 1651 return -EINVAL; 1652 } 1653 1654 if (params_rate(hw_params) > io->converted_rate * k_down) { 1655 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->min = 1656 io->converted_rate * k_down; 1657 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->max = 1658 io->converted_rate * k_down; 1659 hw_params->cmask |= SNDRV_PCM_HW_PARAM_RATE; 1660 } else if (params_rate(hw_params) * k_up < io->converted_rate) { 1661 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->min = 1662 DIV_ROUND_UP(io->converted_rate, k_up); 1663 hw_param_interval(hw_params, SNDRV_PCM_HW_PARAM_RATE)->max = 1664 DIV_ROUND_UP(io->converted_rate, k_up); 1665 hw_params->cmask |= SNDRV_PCM_HW_PARAM_RATE; 1666 } 1667 1668 /* 1669 * TBD: Max SRC input and output rates also depend on number 1670 * of channels and SRC unit: 1671 * SRC1, SRC3 and SRC4 do not support more than 128kHz 1672 * for 6 channel and 96kHz for 8 channel audio. 1673 * Perhaps this function should return EINVAL if the input or 1674 * the output rate exceeds the limitation. 1675 */ 1676 } 1677 } 1678 1679 return rsnd_hw_update(substream, hw_params); 1680} 1681 1682static int rsnd_hw_free(struct snd_soc_component *component, 1683 struct snd_pcm_substream *substream) 1684{ 1685 return rsnd_hw_update(substream, NULL); 1686} 1687 1688static snd_pcm_uframes_t rsnd_pointer(struct snd_soc_component *component, 1689 struct snd_pcm_substream *substream) 1690{ 1691 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream); 1692 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai); 1693 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream); 1694 snd_pcm_uframes_t pointer = 0; 1695 1696 rsnd_dai_call(pointer, io, &pointer); 1697 1698 return pointer; 1699} 1700 1701/* 1702 * snd_kcontrol 1703 */ 1704static int rsnd_kctrl_info(struct snd_kcontrol *kctrl, 1705 struct snd_ctl_elem_info *uinfo) 1706{ 1707 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl); 1708 1709 if (cfg->texts) { 1710 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 1711 uinfo->count = cfg->size; 1712 uinfo->value.enumerated.items = cfg->max; 1713 if (uinfo->value.enumerated.item >= cfg->max) 1714 uinfo->value.enumerated.item = cfg->max - 1; 1715 strscpy(uinfo->value.enumerated.name, 1716 cfg->texts[uinfo->value.enumerated.item], 1717 sizeof(uinfo->value.enumerated.name)); 1718 } else { 1719 uinfo->count = cfg->size; 1720 uinfo->value.integer.min = 0; 1721 uinfo->value.integer.max = cfg->max; 1722 uinfo->type = (cfg->max == 1) ? 1723 SNDRV_CTL_ELEM_TYPE_BOOLEAN : 1724 SNDRV_CTL_ELEM_TYPE_INTEGER; 1725 } 1726 1727 return 0; 1728} 1729 1730static int rsnd_kctrl_get(struct snd_kcontrol *kctrl, 1731 struct snd_ctl_elem_value *uc) 1732{ 1733 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl); 1734 int i; 1735 1736 for (i = 0; i < cfg->size; i++) 1737 if (cfg->texts) 1738 uc->value.enumerated.item[i] = cfg->val[i]; 1739 else 1740 uc->value.integer.value[i] = cfg->val[i]; 1741 1742 return 0; 1743} 1744 1745static int rsnd_kctrl_put(struct snd_kcontrol *kctrl, 1746 struct snd_ctl_elem_value *uc) 1747{ 1748 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl); 1749 int i, change = 0; 1750 1751 if (!cfg->accept(cfg->io)) 1752 return 0; 1753 1754 for (i = 0; i < cfg->size; i++) { 1755 if (cfg->texts) { 1756 change |= (uc->value.enumerated.item[i] != cfg->val[i]); 1757 cfg->val[i] = uc->value.enumerated.item[i]; 1758 } else { 1759 change |= (uc->value.integer.value[i] != cfg->val[i]); 1760 cfg->val[i] = uc->value.integer.value[i]; 1761 } 1762 } 1763 1764 if (change && cfg->update) 1765 cfg->update(cfg->io, cfg->mod); 1766 1767 return change; 1768} 1769 1770int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io) 1771{ 1772 return 1; 1773} 1774 1775int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io) 1776{ 1777 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io); 1778 struct rsnd_priv *priv = rsnd_io_to_priv(io); 1779 struct device *dev = rsnd_priv_to_dev(priv); 1780 1781 if (!runtime) { 1782 dev_warn(dev, "Can't update kctrl when idle\n"); 1783 return 0; 1784 } 1785 1786 return 1; 1787} 1788 1789struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg) 1790{ 1791 cfg->cfg.val = cfg->val; 1792 1793 return &cfg->cfg; 1794} 1795 1796struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg) 1797{ 1798 cfg->cfg.val = &cfg->val; 1799 1800 return &cfg->cfg; 1801} 1802 1803const char * const volume_ramp_rate[] = { 1804 "128 dB/1 step", /* 00000 */ 1805 "64 dB/1 step", /* 00001 */ 1806 "32 dB/1 step", /* 00010 */ 1807 "16 dB/1 step", /* 00011 */ 1808 "8 dB/1 step", /* 00100 */ 1809 "4 dB/1 step", /* 00101 */ 1810 "2 dB/1 step", /* 00110 */ 1811 "1 dB/1 step", /* 00111 */ 1812 "0.5 dB/1 step", /* 01000 */ 1813 "0.25 dB/1 step", /* 01001 */ 1814 "0.125 dB/1 step", /* 01010 = VOLUME_RAMP_MAX_MIX */ 1815 "0.125 dB/2 steps", /* 01011 */ 1816 "0.125 dB/4 steps", /* 01100 */ 1817 "0.125 dB/8 steps", /* 01101 */ 1818 "0.125 dB/16 steps", /* 01110 */ 1819 "0.125 dB/32 steps", /* 01111 */ 1820 "0.125 dB/64 steps", /* 10000 */ 1821 "0.125 dB/128 steps", /* 10001 */ 1822 "0.125 dB/256 steps", /* 10010 */ 1823 "0.125 dB/512 steps", /* 10011 */ 1824 "0.125 dB/1024 steps", /* 10100 */ 1825 "0.125 dB/2048 steps", /* 10101 */ 1826 "0.125 dB/4096 steps", /* 10110 */ 1827 "0.125 dB/8192 steps", /* 10111 = VOLUME_RAMP_MAX_DVC */ 1828}; 1829 1830int rsnd_kctrl_new(struct rsnd_mod *mod, 1831 struct rsnd_dai_stream *io, 1832 struct snd_soc_pcm_runtime *rtd, 1833 const unsigned char *name, 1834 int (*accept)(struct rsnd_dai_stream *io), 1835 void (*update)(struct rsnd_dai_stream *io, 1836 struct rsnd_mod *mod), 1837 struct rsnd_kctrl_cfg *cfg, 1838 const char * const *texts, 1839 int size, 1840 u32 max) 1841{ 1842 struct snd_card *card = rtd->card->snd_card; 1843 struct snd_kcontrol *kctrl; 1844 struct snd_kcontrol_new knew = { 1845 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1846 .name = name, 1847 .info = rsnd_kctrl_info, 1848 .index = rtd->num, 1849 .get = rsnd_kctrl_get, 1850 .put = rsnd_kctrl_put, 1851 }; 1852 int ret; 1853 1854 /* 1855 * 1) Avoid duplicate register for DVC with MIX case 1856 * 2) Allow duplicate register for MIX 1857 * 3) re-register if card was rebinded 1858 */ 1859 list_for_each_entry(kctrl, &card->controls, list) { 1860 struct rsnd_kctrl_cfg *c = kctrl->private_data; 1861 1862 if (c == cfg) 1863 return 0; 1864 } 1865 1866 if (size > RSND_MAX_CHANNELS) 1867 return -EINVAL; 1868 1869 kctrl = snd_ctl_new1(&knew, cfg); 1870 if (!kctrl) 1871 return -ENOMEM; 1872 1873 ret = snd_ctl_add(card, kctrl); 1874 if (ret < 0) 1875 return ret; 1876 1877 cfg->texts = texts; 1878 cfg->max = max; 1879 cfg->size = size; 1880 cfg->accept = accept; 1881 cfg->update = update; 1882 cfg->card = card; 1883 cfg->kctrl = kctrl; 1884 cfg->io = io; 1885 cfg->mod = mod; 1886 1887 return 0; 1888} 1889 1890/* 1891 * snd_soc_component 1892 */ 1893static const struct snd_soc_component_driver rsnd_soc_component = { 1894 .name = "rsnd", 1895 .probe = rsnd_debugfs_probe, 1896 .hw_params = rsnd_hw_params, 1897 .hw_free = rsnd_hw_free, 1898 .pointer = rsnd_pointer, 1899 .legacy_dai_naming = 1, 1900}; 1901 1902static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv, 1903 struct rsnd_dai_stream *io) 1904{ 1905 int ret; 1906 1907 ret = rsnd_dai_call(probe, io, priv); 1908 if (ret == -EAGAIN) { 1909 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io); 1910 struct rsnd_mod *mod; 1911 int i; 1912 1913 /* 1914 * Fallback to PIO mode 1915 */ 1916 1917 /* 1918 * call "remove" for SSI/SRC/DVC 1919 * SSI will be switch to PIO mode if it was DMA mode 1920 * see 1921 * rsnd_dma_init() 1922 * rsnd_ssi_fallback() 1923 */ 1924 rsnd_dai_call(remove, io, priv); 1925 1926 /* 1927 * remove all mod from io 1928 * and, re connect ssi 1929 */ 1930 for_each_rsnd_mod(i, mod, io) 1931 rsnd_dai_disconnect(mod, io, i); 1932 rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI); 1933 1934 /* 1935 * fallback 1936 */ 1937 rsnd_dai_call(fallback, io, priv); 1938 1939 /* 1940 * retry to "probe". 1941 * DAI has SSI which is PIO mode only now. 1942 */ 1943 ret = rsnd_dai_call(probe, io, priv); 1944 } 1945 1946 return ret; 1947} 1948 1949/* 1950 * rsnd probe 1951 */ 1952static int rsnd_probe(struct platform_device *pdev) 1953{ 1954 struct rsnd_priv *priv; 1955 struct device *dev = &pdev->dev; 1956 struct rsnd_dai *rdai; 1957 int (*probe_func[])(struct rsnd_priv *priv) = { 1958 rsnd_gen_probe, 1959 rsnd_dma_probe, 1960 rsnd_ssi_probe, 1961 rsnd_ssiu_probe, 1962 rsnd_src_probe, 1963 rsnd_ctu_probe, 1964 rsnd_mix_probe, 1965 rsnd_dvc_probe, 1966 rsnd_cmd_probe, 1967 rsnd_adg_probe, 1968 rsnd_dai_probe, 1969 }; 1970 int ret, i; 1971 int ci; 1972 1973 /* 1974 * init priv data 1975 */ 1976 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 1977 if (!priv) 1978 return -ENODEV; 1979 1980 priv->pdev = pdev; 1981 priv->flags = (unsigned long)of_device_get_match_data(dev); 1982 spin_lock_init(&priv->lock); 1983 1984 /* 1985 * init each module 1986 */ 1987 for (i = 0; i < ARRAY_SIZE(probe_func); i++) { 1988 ret = probe_func[i](priv); 1989 if (ret) 1990 return ret; 1991 } 1992 1993 for_each_rsnd_dai(rdai, priv, i) { 1994 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback); 1995 if (ret) 1996 goto exit_snd_probe; 1997 1998 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture); 1999 if (ret) 2000 goto exit_snd_probe; 2001 } 2002 2003 dev_set_drvdata(dev, priv); 2004 2005 /* 2006 * asoc register 2007 */ 2008 ci = 0; 2009 for (i = 0; priv->component_dais[i] > 0; i++) { 2010 int nr = priv->component_dais[i]; 2011 2012 ret = devm_snd_soc_register_component(dev, &rsnd_soc_component, 2013 priv->daidrv + ci, nr); 2014 if (ret < 0) { 2015 dev_err(dev, "cannot snd component register\n"); 2016 goto exit_snd_probe; 2017 } 2018 2019 ci += nr; 2020 } 2021 2022 pm_runtime_enable(dev); 2023 2024 dev_info(dev, "probed\n"); 2025 return ret; 2026 2027exit_snd_probe: 2028 for_each_rsnd_dai(rdai, priv, i) { 2029 rsnd_dai_call(remove, &rdai->playback, priv); 2030 rsnd_dai_call(remove, &rdai->capture, priv); 2031 } 2032 2033 /* 2034 * adg is very special mod which can't use rsnd_dai_call(remove), 2035 * and it registers ADG clock on probe. 2036 * It should be unregister if probe failed. 2037 * Mainly it is assuming -EPROBE_DEFER case 2038 */ 2039 rsnd_adg_remove(priv); 2040 2041 return ret; 2042} 2043 2044static void rsnd_remove(struct platform_device *pdev) 2045{ 2046 struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev); 2047 struct rsnd_dai *rdai; 2048 void (*remove_func[])(struct rsnd_priv *priv) = { 2049 rsnd_ssi_remove, 2050 rsnd_ssiu_remove, 2051 rsnd_src_remove, 2052 rsnd_ctu_remove, 2053 rsnd_mix_remove, 2054 rsnd_dvc_remove, 2055 rsnd_cmd_remove, 2056 rsnd_adg_remove, 2057 }; 2058 int i; 2059 2060 pm_runtime_disable(&pdev->dev); 2061 2062 for_each_rsnd_dai(rdai, priv, i) { 2063 int ret; 2064 2065 ret = rsnd_dai_call(remove, &rdai->playback, priv); 2066 if (ret) 2067 dev_warn(&pdev->dev, "Failed to remove playback dai #%d\n", i); 2068 2069 ret = rsnd_dai_call(remove, &rdai->capture, priv); 2070 if (ret) 2071 dev_warn(&pdev->dev, "Failed to remove capture dai #%d\n", i); 2072 } 2073 2074 for (i = 0; i < ARRAY_SIZE(remove_func); i++) 2075 remove_func[i](priv); 2076} 2077 2078static int __maybe_unused rsnd_suspend(struct device *dev) 2079{ 2080 struct rsnd_priv *priv = dev_get_drvdata(dev); 2081 2082 rsnd_adg_clk_disable(priv); 2083 2084 return 0; 2085} 2086 2087static int __maybe_unused rsnd_resume(struct device *dev) 2088{ 2089 struct rsnd_priv *priv = dev_get_drvdata(dev); 2090 2091 rsnd_adg_clk_enable(priv); 2092 2093 return 0; 2094} 2095 2096static const struct dev_pm_ops rsnd_pm_ops = { 2097 SET_SYSTEM_SLEEP_PM_OPS(rsnd_suspend, rsnd_resume) 2098}; 2099 2100static struct platform_driver rsnd_driver = { 2101 .driver = { 2102 .name = "rcar_sound", 2103 .pm = &rsnd_pm_ops, 2104 .of_match_table = rsnd_of_match, 2105 }, 2106 .probe = rsnd_probe, 2107 .remove_new = rsnd_remove, 2108}; 2109module_platform_driver(rsnd_driver); 2110 2111MODULE_LICENSE("GPL v2"); 2112MODULE_DESCRIPTION("Renesas R-Car audio driver"); 2113MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>"); 2114MODULE_ALIAS("platform:rcar-pcm-audio"); 2115