1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) 2 // Copyright(c) 2023 Intel Corporation 3 4 /* 5 * Soundwire Intel ops for LunarLake 6 */ 7 8 #include <linux/acpi.h> 9 #include <linux/cleanup.h> 10 #include <linux/device.h> 11 #include <linux/soundwire/sdw_registers.h> 12 #include <linux/soundwire/sdw.h> 13 #include <linux/soundwire/sdw_intel.h> 14 #include <sound/hdaudio.h> 15 #include <sound/hda-mlink.h> 16 #include <sound/hda_register.h> 17 #include <sound/pcm_params.h> 18 #include "cadence_master.h" 19 #include "bus.h" 20 #include "intel.h" 21 22 /* 23 * shim vendor-specific (vs) ops 24 */ 25 26 static void intel_shim_vs_init(struct sdw_intel *sdw) 27 { 28 void __iomem *shim_vs = sdw->link_res->shim_vs; 29 struct sdw_bus *bus = &sdw->cdns.bus; 30 struct sdw_intel_prop *intel_prop; 31 u16 clde; 32 u16 doaise2; 33 u16 dodse2; 34 u16 clds; 35 u16 clss; 36 u16 doaise; 37 u16 doais; 38 u16 dodse; 39 u16 dods; 40 u16 act; 41 42 intel_prop = bus->vendor_specific_prop; 43 clde = intel_prop->clde; 44 doaise2 = intel_prop->doaise2; 45 dodse2 = intel_prop->dodse2; 46 clds = intel_prop->clds; 47 clss = intel_prop->clss; 48 doaise = intel_prop->doaise; 49 doais = intel_prop->doais; 50 dodse = intel_prop->dodse; 51 dods = intel_prop->dods; 52 53 act = intel_readw(shim_vs, SDW_SHIM2_INTEL_VS_ACTMCTL); 54 u16p_replace_bits(&act, clde, SDW_SHIM3_INTEL_VS_ACTMCTL_CLDE); 55 u16p_replace_bits(&act, doaise2, SDW_SHIM3_INTEL_VS_ACTMCTL_DOAISE2); 56 u16p_replace_bits(&act, dodse2, SDW_SHIM3_INTEL_VS_ACTMCTL_DODSE2); 57 u16p_replace_bits(&act, clds, SDW_SHIM3_INTEL_VS_ACTMCTL_CLDS); 58 u16p_replace_bits(&act, clss, SDW_SHIM3_INTEL_VS_ACTMCTL_CLSS); 59 u16p_replace_bits(&act, doaise, SDW_SHIM2_INTEL_VS_ACTMCTL_DOAISE); 60 u16p_replace_bits(&act, doais, SDW_SHIM2_INTEL_VS_ACTMCTL_DOAIS); 61 u16p_replace_bits(&act, dodse, SDW_SHIM2_INTEL_VS_ACTMCTL_DODSE); 62 u16p_replace_bits(&act, dods, SDW_SHIM2_INTEL_VS_ACTMCTL_DODS); 63 act |= SDW_SHIM2_INTEL_VS_ACTMCTL_DACTQE; 64 intel_writew(shim_vs, SDW_SHIM2_INTEL_VS_ACTMCTL, act); 65 usleep_range(10, 15); 66 } 67 68 static void intel_shim_vs_set_clock_source(struct sdw_intel *sdw, u32 source) 69 { 70 void __iomem *shim_vs = sdw->link_res->shim_vs; 71 u32 val; 72 73 val = intel_readl(shim_vs, SDW_SHIM2_INTEL_VS_LVSCTL); 74 75 u32p_replace_bits(&val, source, SDW_SHIM2_INTEL_VS_LVSCTL_MLCS); 76 77 intel_writel(shim_vs, SDW_SHIM2_INTEL_VS_LVSCTL, val); 78 79 dev_dbg(sdw->cdns.dev, "clock source %d LVSCTL %#x\n", source, val); 80 } 81 82 static int intel_shim_check_wake(struct sdw_intel *sdw) 83 { 84 /* 85 * We follow the HDaudio example and resume unconditionally 86 * without checking the WAKESTS bit for that specific link 87 */ 88 89 return 1; 90 } 91 92 static void intel_shim_wake(struct sdw_intel *sdw, bool wake_enable) 93 { 94 u16 lsdiid = 0; 95 u16 wake_en; 96 u16 wake_sts; 97 int ret; 98 99 mutex_lock(sdw->link_res->shim_lock); 100 101 ret = hdac_bus_eml_sdw_get_lsdiid_unlocked(sdw->link_res->hbus, sdw->instance, &lsdiid); 102 if (ret < 0) 103 goto unlock; 104 105 wake_en = snd_hdac_chip_readw(sdw->link_res->hbus, WAKEEN); 106 107 if (wake_enable) { 108 /* Enable the wakeup */ 109 wake_en |= lsdiid; 110 111 snd_hdac_chip_writew(sdw->link_res->hbus, WAKEEN, wake_en); 112 } else { 113 /* Disable the wake up interrupt */ 114 wake_en &= ~lsdiid; 115 snd_hdac_chip_writew(sdw->link_res->hbus, WAKEEN, wake_en); 116 117 /* Clear wake status (W1C) */ 118 wake_sts = snd_hdac_chip_readw(sdw->link_res->hbus, STATESTS); 119 wake_sts |= lsdiid; 120 snd_hdac_chip_writew(sdw->link_res->hbus, STATESTS, wake_sts); 121 } 122 unlock: 123 mutex_unlock(sdw->link_res->shim_lock); 124 } 125 126 static int intel_link_power_up(struct sdw_intel *sdw) 127 { 128 struct sdw_bus *bus = &sdw->cdns.bus; 129 struct sdw_master_prop *prop = &bus->prop; 130 u32 *shim_mask = sdw->link_res->shim_mask; 131 unsigned int link_id = sdw->instance; 132 u32 clock_source; 133 u32 syncprd; 134 int ret; 135 136 if (prop->mclk_freq % 6000000) { 137 if (prop->mclk_freq % 2400000) { 138 syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_24_576; 139 clock_source = SDW_SHIM2_MLCS_CARDINAL_CLK; 140 } else { 141 syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_38_4; 142 clock_source = SDW_SHIM2_MLCS_XTAL_CLK; 143 } 144 } else { 145 syncprd = SDW_SHIM_SYNC_SYNCPRD_VAL_96; 146 clock_source = SDW_SHIM2_MLCS_AUDIO_PLL_CLK; 147 } 148 149 mutex_lock(sdw->link_res->shim_lock); 150 151 ret = hdac_bus_eml_sdw_power_up_unlocked(sdw->link_res->hbus, link_id); 152 if (ret < 0) { 153 dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_power_up failed: %d\n", 154 __func__, ret); 155 goto out; 156 } 157 158 intel_shim_vs_set_clock_source(sdw, clock_source); 159 160 if (!*shim_mask) { 161 /* we first need to program the SyncPRD/CPU registers */ 162 dev_dbg(sdw->cdns.dev, "first link up, programming SYNCPRD\n"); 163 164 ret = hdac_bus_eml_sdw_set_syncprd_unlocked(sdw->link_res->hbus, syncprd); 165 if (ret < 0) { 166 dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_set_syncprd failed: %d\n", 167 __func__, ret); 168 goto out; 169 } 170 171 /* SYNCPU will change once link is active */ 172 ret = hdac_bus_eml_sdw_wait_syncpu_unlocked(sdw->link_res->hbus); 173 if (ret < 0) { 174 dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_wait_syncpu failed: %d\n", 175 __func__, ret); 176 goto out; 177 } 178 179 hdac_bus_eml_enable_interrupt_unlocked(sdw->link_res->hbus, true, 180 AZX_REG_ML_LEPTR_ID_SDW, true); 181 } 182 183 *shim_mask |= BIT(link_id); 184 185 sdw->cdns.link_up = true; 186 187 intel_shim_vs_init(sdw); 188 189 out: 190 mutex_unlock(sdw->link_res->shim_lock); 191 192 return ret; 193 } 194 195 static int intel_link_power_down(struct sdw_intel *sdw) 196 { 197 u32 *shim_mask = sdw->link_res->shim_mask; 198 unsigned int link_id = sdw->instance; 199 int ret; 200 201 mutex_lock(sdw->link_res->shim_lock); 202 203 sdw->cdns.link_up = false; 204 205 *shim_mask &= ~BIT(link_id); 206 207 if (!*shim_mask) 208 hdac_bus_eml_enable_interrupt_unlocked(sdw->link_res->hbus, true, 209 AZX_REG_ML_LEPTR_ID_SDW, false); 210 211 ret = hdac_bus_eml_sdw_power_down_unlocked(sdw->link_res->hbus, link_id); 212 if (ret < 0) { 213 dev_err(sdw->cdns.dev, "%s: hdac_bus_eml_sdw_power_down failed: %d\n", 214 __func__, ret); 215 216 /* 217 * we leave the sdw->cdns.link_up flag as false since we've disabled 218 * the link at this point and cannot handle interrupts any longer. 219 */ 220 } 221 222 mutex_unlock(sdw->link_res->shim_lock); 223 224 return ret; 225 } 226 227 static void intel_sync_arm(struct sdw_intel *sdw) 228 { 229 unsigned int link_id = sdw->instance; 230 231 mutex_lock(sdw->link_res->shim_lock); 232 233 hdac_bus_eml_sdw_sync_arm_unlocked(sdw->link_res->hbus, link_id); 234 235 mutex_unlock(sdw->link_res->shim_lock); 236 } 237 238 static int intel_sync_go_unlocked(struct sdw_intel *sdw) 239 { 240 int ret; 241 242 ret = hdac_bus_eml_sdw_sync_go_unlocked(sdw->link_res->hbus); 243 if (ret < 0) 244 dev_err(sdw->cdns.dev, "%s: SyncGO clear failed: %d\n", __func__, ret); 245 246 return ret; 247 } 248 249 static int intel_sync_go(struct sdw_intel *sdw) 250 { 251 int ret; 252 253 mutex_lock(sdw->link_res->shim_lock); 254 255 ret = intel_sync_go_unlocked(sdw); 256 257 mutex_unlock(sdw->link_res->shim_lock); 258 259 return ret; 260 } 261 262 static bool intel_check_cmdsync_unlocked(struct sdw_intel *sdw) 263 { 264 return hdac_bus_eml_sdw_check_cmdsync_unlocked(sdw->link_res->hbus); 265 } 266 267 /* DAI callbacks */ 268 static int intel_params_stream(struct sdw_intel *sdw, 269 struct snd_pcm_substream *substream, 270 struct snd_soc_dai *dai, 271 struct snd_pcm_hw_params *hw_params, 272 int link_id, int alh_stream_id) 273 { 274 struct sdw_intel_link_res *res = sdw->link_res; 275 struct sdw_intel_stream_params_data params_data; 276 277 params_data.substream = substream; 278 params_data.dai = dai; 279 params_data.hw_params = hw_params; 280 params_data.link_id = link_id; 281 params_data.alh_stream_id = alh_stream_id; 282 283 if (res->ops && res->ops->params_stream && res->dev) 284 return res->ops->params_stream(res->dev, 285 ¶ms_data); 286 return -EIO; 287 } 288 289 static int intel_free_stream(struct sdw_intel *sdw, 290 struct snd_pcm_substream *substream, 291 struct snd_soc_dai *dai, 292 int link_id) 293 294 { 295 struct sdw_intel_link_res *res = sdw->link_res; 296 struct sdw_intel_stream_free_data free_data; 297 298 free_data.substream = substream; 299 free_data.dai = dai; 300 free_data.link_id = link_id; 301 302 if (res->ops && res->ops->free_stream && res->dev) 303 return res->ops->free_stream(res->dev, 304 &free_data); 305 306 return 0; 307 } 308 309 /* 310 * DAI operations 311 */ 312 static int intel_hw_params(struct snd_pcm_substream *substream, 313 struct snd_pcm_hw_params *params, 314 struct snd_soc_dai *dai) 315 { 316 struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); 317 struct sdw_intel *sdw = cdns_to_intel(cdns); 318 struct sdw_cdns_dai_runtime *dai_runtime; 319 struct sdw_cdns_pdi *pdi; 320 struct sdw_stream_config sconfig; 321 int ch, dir; 322 int ret; 323 324 dai_runtime = cdns->dai_runtime_array[dai->id]; 325 if (!dai_runtime) 326 return -EIO; 327 328 ch = params_channels(params); 329 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) 330 dir = SDW_DATA_DIR_RX; 331 else 332 dir = SDW_DATA_DIR_TX; 333 334 pdi = sdw_cdns_alloc_pdi(cdns, &cdns->pcm, ch, dir, dai->id); 335 if (!pdi) 336 return -EINVAL; 337 338 /* use same definitions for alh_id as previous generations */ 339 pdi->intel_alh_id = (sdw->instance * 16) + pdi->num + 3; 340 if (pdi->num >= 2) 341 pdi->intel_alh_id += 2; 342 343 /* the SHIM will be configured in the callback functions */ 344 345 sdw_cdns_config_stream(cdns, ch, dir, pdi); 346 347 /* store pdi and state, may be needed in prepare step */ 348 dai_runtime->paused = false; 349 dai_runtime->suspended = false; 350 dai_runtime->pdi = pdi; 351 352 /* Inform DSP about PDI stream number */ 353 ret = intel_params_stream(sdw, substream, dai, params, 354 sdw->instance, 355 pdi->intel_alh_id); 356 if (ret) 357 return ret; 358 359 sconfig.direction = dir; 360 sconfig.ch_count = ch; 361 sconfig.frame_rate = params_rate(params); 362 sconfig.type = dai_runtime->stream_type; 363 364 sconfig.bps = snd_pcm_format_width(params_format(params)); 365 366 /* Port configuration */ 367 struct sdw_port_config *pconfig __free(kfree) = kzalloc(sizeof(*pconfig), 368 GFP_KERNEL); 369 if (!pconfig) 370 return -ENOMEM; 371 372 pconfig->num = pdi->num; 373 pconfig->ch_mask = (1 << ch) - 1; 374 375 ret = sdw_stream_add_master(&cdns->bus, &sconfig, 376 pconfig, 1, dai_runtime->stream); 377 if (ret) 378 dev_err(cdns->dev, "add master to stream failed:%d\n", ret); 379 380 return ret; 381 } 382 383 static int intel_prepare(struct snd_pcm_substream *substream, 384 struct snd_soc_dai *dai) 385 { 386 struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); 387 struct sdw_intel *sdw = cdns_to_intel(cdns); 388 struct sdw_cdns_dai_runtime *dai_runtime; 389 int ch, dir; 390 int ret = 0; 391 392 dai_runtime = cdns->dai_runtime_array[dai->id]; 393 if (!dai_runtime) { 394 dev_err(dai->dev, "failed to get dai runtime in %s\n", 395 __func__); 396 return -EIO; 397 } 398 399 if (dai_runtime->suspended) { 400 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream); 401 struct snd_pcm_hw_params *hw_params; 402 403 hw_params = &rtd->dpcm[substream->stream].hw_params; 404 405 dai_runtime->suspended = false; 406 407 /* 408 * .prepare() is called after system resume, where we 409 * need to reinitialize the SHIM/ALH/Cadence IP. 410 * .prepare() is also called to deal with underflows, 411 * but in those cases we cannot touch ALH/SHIM 412 * registers 413 */ 414 415 /* configure stream */ 416 ch = params_channels(hw_params); 417 if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) 418 dir = SDW_DATA_DIR_RX; 419 else 420 dir = SDW_DATA_DIR_TX; 421 422 /* the SHIM will be configured in the callback functions */ 423 424 sdw_cdns_config_stream(cdns, ch, dir, dai_runtime->pdi); 425 426 /* Inform DSP about PDI stream number */ 427 ret = intel_params_stream(sdw, substream, dai, 428 hw_params, 429 sdw->instance, 430 dai_runtime->pdi->intel_alh_id); 431 } 432 433 return ret; 434 } 435 436 static int 437 intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai) 438 { 439 struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); 440 struct sdw_intel *sdw = cdns_to_intel(cdns); 441 struct sdw_cdns_dai_runtime *dai_runtime; 442 int ret; 443 444 dai_runtime = cdns->dai_runtime_array[dai->id]; 445 if (!dai_runtime) 446 return -EIO; 447 448 /* 449 * The sdw stream state will transition to RELEASED when stream-> 450 * master_list is empty. So the stream state will transition to 451 * DEPREPARED for the first cpu-dai and to RELEASED for the last 452 * cpu-dai. 453 */ 454 ret = sdw_stream_remove_master(&cdns->bus, dai_runtime->stream); 455 if (ret < 0) { 456 dev_err(dai->dev, "remove master from stream %s failed: %d\n", 457 dai_runtime->stream->name, ret); 458 return ret; 459 } 460 461 ret = intel_free_stream(sdw, substream, dai, sdw->instance); 462 if (ret < 0) { 463 dev_err(dai->dev, "intel_free_stream: failed %d\n", ret); 464 return ret; 465 } 466 467 dai_runtime->pdi = NULL; 468 469 return 0; 470 } 471 472 static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai, 473 void *stream, int direction) 474 { 475 return cdns_set_sdw_stream(dai, stream, direction); 476 } 477 478 static void *intel_get_sdw_stream(struct snd_soc_dai *dai, 479 int direction) 480 { 481 struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); 482 struct sdw_cdns_dai_runtime *dai_runtime; 483 484 dai_runtime = cdns->dai_runtime_array[dai->id]; 485 if (!dai_runtime) 486 return ERR_PTR(-EINVAL); 487 488 return dai_runtime->stream; 489 } 490 491 static int intel_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai) 492 { 493 struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai); 494 struct sdw_intel *sdw = cdns_to_intel(cdns); 495 struct sdw_intel_link_res *res = sdw->link_res; 496 struct sdw_cdns_dai_runtime *dai_runtime; 497 int ret = 0; 498 499 /* 500 * The .trigger callback is used to program HDaudio DMA and send required IPC to audio 501 * firmware. 502 */ 503 if (res->ops && res->ops->trigger) { 504 ret = res->ops->trigger(substream, cmd, dai); 505 if (ret < 0) 506 return ret; 507 } 508 509 dai_runtime = cdns->dai_runtime_array[dai->id]; 510 if (!dai_runtime) { 511 dev_err(dai->dev, "failed to get dai runtime in %s\n", 512 __func__); 513 return -EIO; 514 } 515 516 switch (cmd) { 517 case SNDRV_PCM_TRIGGER_SUSPEND: 518 519 /* 520 * The .prepare callback is used to deal with xruns and resume operations. 521 * In the case of xruns, the DMAs and SHIM registers cannot be touched, 522 * but for resume operations the DMAs and SHIM registers need to be initialized. 523 * the .trigger callback is used to track the suspend case only. 524 */ 525 526 dai_runtime->suspended = true; 527 528 break; 529 530 case SNDRV_PCM_TRIGGER_PAUSE_PUSH: 531 dai_runtime->paused = true; 532 break; 533 case SNDRV_PCM_TRIGGER_STOP: 534 case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: 535 dai_runtime->paused = false; 536 break; 537 default: 538 break; 539 } 540 541 return ret; 542 } 543 544 static const struct snd_soc_dai_ops intel_pcm_dai_ops = { 545 .hw_params = intel_hw_params, 546 .prepare = intel_prepare, 547 .hw_free = intel_hw_free, 548 .trigger = intel_trigger, 549 .set_stream = intel_pcm_set_sdw_stream, 550 .get_stream = intel_get_sdw_stream, 551 }; 552 553 static const struct snd_soc_component_driver dai_component = { 554 .name = "soundwire", 555 }; 556 557 /* 558 * PDI routines 559 */ 560 static void intel_pdi_init(struct sdw_intel *sdw, 561 struct sdw_cdns_stream_config *config) 562 { 563 void __iomem *shim = sdw->link_res->shim; 564 int pcm_cap; 565 566 /* PCM Stream Capability */ 567 pcm_cap = intel_readw(shim, SDW_SHIM2_PCMSCAP); 568 569 config->pcm_bd = FIELD_GET(SDW_SHIM2_PCMSCAP_BSS, pcm_cap); 570 config->pcm_in = FIELD_GET(SDW_SHIM2_PCMSCAP_ISS, pcm_cap); 571 config->pcm_out = FIELD_GET(SDW_SHIM2_PCMSCAP_ISS, pcm_cap); 572 573 dev_dbg(sdw->cdns.dev, "PCM cap bd:%d in:%d out:%d\n", 574 config->pcm_bd, config->pcm_in, config->pcm_out); 575 } 576 577 static int 578 intel_pdi_get_ch_cap(struct sdw_intel *sdw, unsigned int pdi_num) 579 { 580 void __iomem *shim = sdw->link_res->shim; 581 582 /* zero based values for channel count in register */ 583 return intel_readw(shim, SDW_SHIM2_PCMSYCHC(pdi_num)) + 1; 584 } 585 586 static void intel_pdi_get_ch_update(struct sdw_intel *sdw, 587 struct sdw_cdns_pdi *pdi, 588 unsigned int num_pdi, 589 unsigned int *num_ch) 590 { 591 int ch_count = 0; 592 int i; 593 594 for (i = 0; i < num_pdi; i++) { 595 pdi->ch_count = intel_pdi_get_ch_cap(sdw, pdi->num); 596 ch_count += pdi->ch_count; 597 pdi++; 598 } 599 600 *num_ch = ch_count; 601 } 602 603 static void intel_pdi_stream_ch_update(struct sdw_intel *sdw, 604 struct sdw_cdns_streams *stream) 605 { 606 intel_pdi_get_ch_update(sdw, stream->bd, stream->num_bd, 607 &stream->num_ch_bd); 608 609 intel_pdi_get_ch_update(sdw, stream->in, stream->num_in, 610 &stream->num_ch_in); 611 612 intel_pdi_get_ch_update(sdw, stream->out, stream->num_out, 613 &stream->num_ch_out); 614 } 615 616 static int intel_create_dai(struct sdw_cdns *cdns, 617 struct snd_soc_dai_driver *dais, 618 enum intel_pdi_type type, 619 u32 num, u32 off, u32 max_ch) 620 { 621 int i; 622 623 if (!num) 624 return 0; 625 626 for (i = off; i < (off + num); i++) { 627 dais[i].name = devm_kasprintf(cdns->dev, GFP_KERNEL, 628 "SDW%d Pin%d", 629 cdns->instance, i); 630 if (!dais[i].name) 631 return -ENOMEM; 632 633 if (type == INTEL_PDI_BD || type == INTEL_PDI_OUT) { 634 dais[i].playback.channels_min = 1; 635 dais[i].playback.channels_max = max_ch; 636 } 637 638 if (type == INTEL_PDI_BD || type == INTEL_PDI_IN) { 639 dais[i].capture.channels_min = 1; 640 dais[i].capture.channels_max = max_ch; 641 } 642 643 dais[i].ops = &intel_pcm_dai_ops; 644 } 645 646 return 0; 647 } 648 649 static int intel_register_dai(struct sdw_intel *sdw) 650 { 651 struct sdw_cdns_dai_runtime **dai_runtime_array; 652 struct sdw_cdns_stream_config config; 653 struct sdw_cdns *cdns = &sdw->cdns; 654 struct sdw_cdns_streams *stream; 655 struct snd_soc_dai_driver *dais; 656 int num_dai; 657 int ret; 658 int off = 0; 659 660 /* Read the PDI config and initialize cadence PDI */ 661 intel_pdi_init(sdw, &config); 662 ret = sdw_cdns_pdi_init(cdns, config); 663 if (ret) 664 return ret; 665 666 intel_pdi_stream_ch_update(sdw, &sdw->cdns.pcm); 667 668 /* DAIs are created based on total number of PDIs supported */ 669 num_dai = cdns->pcm.num_pdi; 670 671 dai_runtime_array = devm_kcalloc(cdns->dev, num_dai, 672 sizeof(struct sdw_cdns_dai_runtime *), 673 GFP_KERNEL); 674 if (!dai_runtime_array) 675 return -ENOMEM; 676 cdns->dai_runtime_array = dai_runtime_array; 677 678 dais = devm_kcalloc(cdns->dev, num_dai, sizeof(*dais), GFP_KERNEL); 679 if (!dais) 680 return -ENOMEM; 681 682 /* Create PCM DAIs */ 683 stream = &cdns->pcm; 684 685 ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pcm.num_in, 686 off, stream->num_ch_in); 687 if (ret) 688 return ret; 689 690 off += cdns->pcm.num_in; 691 ret = intel_create_dai(cdns, dais, INTEL_PDI_OUT, cdns->pcm.num_out, 692 off, stream->num_ch_out); 693 if (ret) 694 return ret; 695 696 off += cdns->pcm.num_out; 697 ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pcm.num_bd, 698 off, stream->num_ch_bd); 699 if (ret) 700 return ret; 701 702 return devm_snd_soc_register_component(cdns->dev, &dai_component, 703 dais, num_dai); 704 } 705 706 static void intel_program_sdi(struct sdw_intel *sdw, int dev_num) 707 { 708 int ret; 709 710 ret = hdac_bus_eml_sdw_set_lsdiid(sdw->link_res->hbus, sdw->instance, dev_num); 711 if (ret < 0) 712 dev_err(sdw->cdns.dev, "%s: could not set lsdiid for link %d %d\n", 713 __func__, sdw->instance, dev_num); 714 } 715 716 static int intel_get_link_count(struct sdw_intel *sdw) 717 { 718 int ret; 719 720 ret = hdac_bus_eml_get_count(sdw->link_res->hbus, true, AZX_REG_ML_LEPTR_ID_SDW); 721 if (!ret) { 722 dev_err(sdw->cdns.dev, "%s: could not retrieve link count\n", __func__); 723 return -ENODEV; 724 } 725 726 if (ret > SDW_INTEL_MAX_LINKS) { 727 dev_err(sdw->cdns.dev, "%s: link count %d exceed max %d\n", __func__, ret, SDW_INTEL_MAX_LINKS); 728 return -EINVAL; 729 } 730 731 return ret; 732 } 733 734 const struct sdw_intel_hw_ops sdw_intel_lnl_hw_ops = { 735 .debugfs_init = intel_ace2x_debugfs_init, 736 .debugfs_exit = intel_ace2x_debugfs_exit, 737 738 .get_link_count = intel_get_link_count, 739 740 .register_dai = intel_register_dai, 741 742 .check_clock_stop = intel_check_clock_stop, 743 .start_bus = intel_start_bus, 744 .start_bus_after_reset = intel_start_bus_after_reset, 745 .start_bus_after_clock_stop = intel_start_bus_after_clock_stop, 746 .stop_bus = intel_stop_bus, 747 748 .link_power_up = intel_link_power_up, 749 .link_power_down = intel_link_power_down, 750 751 .shim_check_wake = intel_shim_check_wake, 752 .shim_wake = intel_shim_wake, 753 754 .pre_bank_switch = intel_pre_bank_switch, 755 .post_bank_switch = intel_post_bank_switch, 756 757 .sync_arm = intel_sync_arm, 758 .sync_go_unlocked = intel_sync_go_unlocked, 759 .sync_go = intel_sync_go, 760 .sync_check_cmdsync_unlocked = intel_check_cmdsync_unlocked, 761 762 .program_sdi = intel_program_sdi, 763 }; 764 EXPORT_SYMBOL_NS(sdw_intel_lnl_hw_ops, SOUNDWIRE_INTEL); 765 766 MODULE_IMPORT_NS(SND_SOC_SOF_HDA_MLINK); 767