1 /* 2 * Intel Skylake I2S Machine Driver with MAXIM98357A 3 * and NAU88L25 4 * 5 * Copyright (C) 2015, Intel Corporation. All rights reserved. 6 * 7 * This program is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU General Public License version 9 * 2 as published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 */ 16 17 #include <linux/module.h> 18 #include <linux/platform_device.h> 19 #include <sound/core.h> 20 #include <sound/jack.h> 21 #include <sound/pcm.h> 22 #include <sound/pcm_params.h> 23 #include <sound/soc.h> 24 #include "../../codecs/nau8825.h" 25 #include "../../codecs/hdac_hdmi.h" 26 #include "../skylake/skl.h" 27 28 #define SKL_NUVOTON_CODEC_DAI "nau8825-hifi" 29 #define SKL_MAXIM_CODEC_DAI "HiFi" 30 #define DMIC_CH(p) p->list[p->count-1] 31 32 static struct snd_soc_jack skylake_headset; 33 static struct snd_soc_card skylake_audio_card; 34 static const struct snd_pcm_hw_constraint_list *dmic_constraints; 35 36 struct skl_hdmi_pcm { 37 struct list_head head; 38 struct snd_soc_dai *codec_dai; 39 int device; 40 }; 41 42 struct skl_nau8825_private { 43 struct list_head hdmi_pcm_list; 44 }; 45 46 enum { 47 SKL_DPCM_AUDIO_PB = 0, 48 SKL_DPCM_AUDIO_CP, 49 SKL_DPCM_AUDIO_REF_CP, 50 SKL_DPCM_AUDIO_DMIC_CP, 51 SKL_DPCM_AUDIO_HDMI1_PB, 52 SKL_DPCM_AUDIO_HDMI2_PB, 53 SKL_DPCM_AUDIO_HDMI3_PB, 54 }; 55 56 static inline struct snd_soc_dai *skl_get_codec_dai(struct snd_soc_card *card) 57 { 58 struct snd_soc_pcm_runtime *rtd; 59 60 list_for_each_entry(rtd, &card->rtd_list, list) { 61 62 if (!strncmp(rtd->codec_dai->name, SKL_NUVOTON_CODEC_DAI, 63 strlen(SKL_NUVOTON_CODEC_DAI))) 64 return rtd->codec_dai; 65 } 66 67 return NULL; 68 } 69 70 static int platform_clock_control(struct snd_soc_dapm_widget *w, 71 struct snd_kcontrol *k, int event) 72 { 73 struct snd_soc_dapm_context *dapm = w->dapm; 74 struct snd_soc_card *card = dapm->card; 75 struct snd_soc_dai *codec_dai; 76 int ret; 77 78 codec_dai = skl_get_codec_dai(card); 79 if (!codec_dai) { 80 dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n"); 81 return -EIO; 82 } 83 84 if (SND_SOC_DAPM_EVENT_ON(event)) { 85 ret = snd_soc_dai_set_sysclk(codec_dai, 86 NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN); 87 if (ret < 0) { 88 dev_err(card->dev, "set sysclk err = %d\n", ret); 89 return -EIO; 90 } 91 } else { 92 ret = snd_soc_dai_set_sysclk(codec_dai, 93 NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN); 94 if (ret < 0) { 95 dev_err(card->dev, "set sysclk err = %d\n", ret); 96 return -EIO; 97 } 98 } 99 100 return ret; 101 } 102 103 static const struct snd_kcontrol_new skylake_controls[] = { 104 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 105 SOC_DAPM_PIN_SWITCH("Headset Mic"), 106 SOC_DAPM_PIN_SWITCH("Spk"), 107 }; 108 109 static const struct snd_soc_dapm_widget skylake_widgets[] = { 110 SND_SOC_DAPM_HP("Headphone Jack", NULL), 111 SND_SOC_DAPM_MIC("Headset Mic", NULL), 112 SND_SOC_DAPM_SPK("Spk", NULL), 113 SND_SOC_DAPM_MIC("SoC DMIC", NULL), 114 SND_SOC_DAPM_SPK("DP", NULL), 115 SND_SOC_DAPM_SPK("HDMI", NULL), 116 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, 117 platform_clock_control, SND_SOC_DAPM_PRE_PMU | 118 SND_SOC_DAPM_POST_PMD), 119 }; 120 121 static const struct snd_soc_dapm_route skylake_map[] = { 122 /* HP jack connectors - unknown if we have jack detection */ 123 { "Headphone Jack", NULL, "HPOL" }, 124 { "Headphone Jack", NULL, "HPOR" }, 125 126 /* speaker */ 127 { "Spk", NULL, "Speaker" }, 128 129 /* other jacks */ 130 { "MIC", NULL, "Headset Mic" }, 131 { "DMic", NULL, "SoC DMIC" }, 132 133 {"HDMI", NULL, "hif5 Output"}, 134 {"DP", NULL, "hif6 Output"}, 135 136 /* CODEC BE connections */ 137 { "HiFi Playback", NULL, "ssp0 Tx" }, 138 { "ssp0 Tx", NULL, "codec0_out" }, 139 140 { "Playback", NULL, "ssp1 Tx" }, 141 { "ssp1 Tx", NULL, "codec1_out" }, 142 143 { "codec0_in", NULL, "ssp1 Rx" }, 144 { "ssp1 Rx", NULL, "Capture" }, 145 146 /* DMIC */ 147 { "dmic01_hifi", NULL, "DMIC01 Rx" }, 148 { "DMIC01 Rx", NULL, "DMIC AIF" }, 149 150 { "hifi3", NULL, "iDisp3 Tx"}, 151 { "iDisp3 Tx", NULL, "iDisp3_out"}, 152 { "hifi2", NULL, "iDisp2 Tx"}, 153 { "iDisp2 Tx", NULL, "iDisp2_out"}, 154 { "hifi1", NULL, "iDisp1 Tx"}, 155 { "iDisp1 Tx", NULL, "iDisp1_out"}, 156 157 { "Headphone Jack", NULL, "Platform Clock" }, 158 { "Headset Mic", NULL, "Platform Clock" }, 159 }; 160 161 static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd, 162 struct snd_pcm_hw_params *params) 163 { 164 struct snd_interval *rate = hw_param_interval(params, 165 SNDRV_PCM_HW_PARAM_RATE); 166 struct snd_interval *channels = hw_param_interval(params, 167 SNDRV_PCM_HW_PARAM_CHANNELS); 168 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 169 170 /* The ADSP will covert the FE rate to 48k, stereo */ 171 rate->min = rate->max = 48000; 172 channels->min = channels->max = 2; 173 174 /* set SSP0 to 24 bit */ 175 snd_mask_none(fmt); 176 snd_mask_set(fmt, SNDRV_PCM_FORMAT_S24_LE); 177 178 return 0; 179 } 180 181 static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd) 182 { 183 int ret; 184 struct snd_soc_codec *codec = rtd->codec; 185 186 /* 187 * Headset buttons map to the google Reference headset. 188 * These can be configured by userspace. 189 */ 190 ret = snd_soc_card_jack_new(&skylake_audio_card, "Headset Jack", 191 SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 | 192 SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset, 193 NULL, 0); 194 if (ret) { 195 dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret); 196 return ret; 197 } 198 199 nau8825_enable_jack_detect(codec, &skylake_headset); 200 201 snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC"); 202 203 return ret; 204 } 205 206 static int skylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd) 207 { 208 struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card); 209 struct snd_soc_dai *dai = rtd->codec_dai; 210 struct skl_hdmi_pcm *pcm; 211 212 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); 213 if (!pcm) 214 return -ENOMEM; 215 216 pcm->device = SKL_DPCM_AUDIO_HDMI1_PB; 217 pcm->codec_dai = dai; 218 219 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); 220 221 return 0; 222 } 223 224 static int skylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd) 225 { 226 struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card); 227 struct snd_soc_dai *dai = rtd->codec_dai; 228 struct skl_hdmi_pcm *pcm; 229 230 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); 231 if (!pcm) 232 return -ENOMEM; 233 234 pcm->device = SKL_DPCM_AUDIO_HDMI2_PB; 235 pcm->codec_dai = dai; 236 237 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); 238 239 return 0; 240 } 241 242 static int skylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd) 243 { 244 struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card); 245 struct snd_soc_dai *dai = rtd->codec_dai; 246 struct skl_hdmi_pcm *pcm; 247 248 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); 249 if (!pcm) 250 return -ENOMEM; 251 252 pcm->device = SKL_DPCM_AUDIO_HDMI3_PB; 253 pcm->codec_dai = dai; 254 255 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); 256 257 return 0; 258 } 259 260 static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd) 261 { 262 struct snd_soc_dapm_context *dapm; 263 struct snd_soc_component *component = rtd->cpu_dai->component; 264 265 dapm = snd_soc_component_get_dapm(component); 266 snd_soc_dapm_ignore_suspend(dapm, "Reference Capture"); 267 268 return 0; 269 } 270 271 static unsigned int rates[] = { 272 48000, 273 }; 274 275 static struct snd_pcm_hw_constraint_list constraints_rates = { 276 .count = ARRAY_SIZE(rates), 277 .list = rates, 278 .mask = 0, 279 }; 280 281 static unsigned int channels[] = { 282 2, 283 }; 284 285 static struct snd_pcm_hw_constraint_list constraints_channels = { 286 .count = ARRAY_SIZE(channels), 287 .list = channels, 288 .mask = 0, 289 }; 290 291 static int skl_fe_startup(struct snd_pcm_substream *substream) 292 { 293 struct snd_pcm_runtime *runtime = substream->runtime; 294 295 /* 296 * On this platform for PCM device we support, 297 * 48Khz 298 * stereo 299 * 16 bit audio 300 */ 301 302 runtime->hw.channels_max = 2; 303 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 304 &constraints_channels); 305 306 runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; 307 snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16); 308 309 snd_pcm_hw_constraint_list(runtime, 0, 310 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 311 312 return 0; 313 } 314 315 static const struct snd_soc_ops skylake_nau8825_fe_ops = { 316 .startup = skl_fe_startup, 317 }; 318 319 static int skylake_nau8825_hw_params(struct snd_pcm_substream *substream, 320 struct snd_pcm_hw_params *params) 321 { 322 struct snd_soc_pcm_runtime *rtd = substream->private_data; 323 struct snd_soc_dai *codec_dai = rtd->codec_dai; 324 int ret; 325 326 ret = snd_soc_dai_set_sysclk(codec_dai, 327 NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN); 328 329 if (ret < 0) 330 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret); 331 332 return ret; 333 } 334 335 static struct snd_soc_ops skylake_nau8825_ops = { 336 .hw_params = skylake_nau8825_hw_params, 337 }; 338 339 static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd, 340 struct snd_pcm_hw_params *params) 341 { 342 struct snd_interval *channels = hw_param_interval(params, 343 SNDRV_PCM_HW_PARAM_CHANNELS); 344 345 if (params_channels(params) == 2 || DMIC_CH(dmic_constraints) == 2) 346 channels->min = channels->max = 2; 347 else 348 channels->min = channels->max = 4; 349 350 return 0; 351 } 352 353 static unsigned int channels_dmic[] = { 354 2, 4, 355 }; 356 357 static struct snd_pcm_hw_constraint_list constraints_dmic_channels = { 358 .count = ARRAY_SIZE(channels_dmic), 359 .list = channels_dmic, 360 .mask = 0, 361 }; 362 363 static const unsigned int dmic_2ch[] = { 364 2, 365 }; 366 367 static const struct snd_pcm_hw_constraint_list constraints_dmic_2ch = { 368 .count = ARRAY_SIZE(dmic_2ch), 369 .list = dmic_2ch, 370 .mask = 0, 371 }; 372 373 static int skylake_dmic_startup(struct snd_pcm_substream *substream) 374 { 375 struct snd_pcm_runtime *runtime = substream->runtime; 376 377 runtime->hw.channels_max = DMIC_CH(dmic_constraints); 378 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 379 dmic_constraints); 380 381 return snd_pcm_hw_constraint_list(substream->runtime, 0, 382 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 383 } 384 385 static struct snd_soc_ops skylake_dmic_ops = { 386 .startup = skylake_dmic_startup, 387 }; 388 389 static unsigned int rates_16000[] = { 390 16000, 391 }; 392 393 static struct snd_pcm_hw_constraint_list constraints_16000 = { 394 .count = ARRAY_SIZE(rates_16000), 395 .list = rates_16000, 396 }; 397 398 static const unsigned int ch_mono[] = { 399 1, 400 }; 401 402 static const struct snd_pcm_hw_constraint_list constraints_refcap = { 403 .count = ARRAY_SIZE(ch_mono), 404 .list = ch_mono, 405 }; 406 407 static int skylake_refcap_startup(struct snd_pcm_substream *substream) 408 { 409 substream->runtime->hw.channels_max = 1; 410 snd_pcm_hw_constraint_list(substream->runtime, 0, 411 SNDRV_PCM_HW_PARAM_CHANNELS, 412 &constraints_refcap); 413 414 return snd_pcm_hw_constraint_list(substream->runtime, 0, 415 SNDRV_PCM_HW_PARAM_RATE, 416 &constraints_16000); 417 } 418 419 static struct snd_soc_ops skylaye_refcap_ops = { 420 .startup = skylake_refcap_startup, 421 }; 422 423 /* skylake digital audio interface glue - connects codec <--> CPU */ 424 static struct snd_soc_dai_link skylake_dais[] = { 425 /* Front End DAI links */ 426 [SKL_DPCM_AUDIO_PB] = { 427 .name = "Skl Audio Port", 428 .stream_name = "Audio", 429 .cpu_dai_name = "System Pin", 430 .platform_name = "0000:00:1f.3", 431 .dynamic = 1, 432 .codec_name = "snd-soc-dummy", 433 .codec_dai_name = "snd-soc-dummy-dai", 434 .nonatomic = 1, 435 .init = skylake_nau8825_fe_init, 436 .trigger = { 437 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 438 .dpcm_playback = 1, 439 .ops = &skylake_nau8825_fe_ops, 440 }, 441 [SKL_DPCM_AUDIO_CP] = { 442 .name = "Skl Audio Capture Port", 443 .stream_name = "Audio Record", 444 .cpu_dai_name = "System Pin", 445 .platform_name = "0000:00:1f.3", 446 .dynamic = 1, 447 .codec_name = "snd-soc-dummy", 448 .codec_dai_name = "snd-soc-dummy-dai", 449 .nonatomic = 1, 450 .trigger = { 451 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 452 .dpcm_capture = 1, 453 .ops = &skylake_nau8825_fe_ops, 454 }, 455 [SKL_DPCM_AUDIO_REF_CP] = { 456 .name = "Skl Audio Reference cap", 457 .stream_name = "Wake on Voice", 458 .cpu_dai_name = "Reference Pin", 459 .codec_name = "snd-soc-dummy", 460 .codec_dai_name = "snd-soc-dummy-dai", 461 .platform_name = "0000:00:1f.3", 462 .init = NULL, 463 .dpcm_capture = 1, 464 .nonatomic = 1, 465 .dynamic = 1, 466 .ops = &skylaye_refcap_ops, 467 }, 468 [SKL_DPCM_AUDIO_DMIC_CP] = { 469 .name = "Skl Audio DMIC cap", 470 .stream_name = "dmiccap", 471 .cpu_dai_name = "DMIC Pin", 472 .codec_name = "snd-soc-dummy", 473 .codec_dai_name = "snd-soc-dummy-dai", 474 .platform_name = "0000:00:1f.3", 475 .init = NULL, 476 .dpcm_capture = 1, 477 .nonatomic = 1, 478 .dynamic = 1, 479 .ops = &skylake_dmic_ops, 480 }, 481 [SKL_DPCM_AUDIO_HDMI1_PB] = { 482 .name = "Skl HDMI Port1", 483 .stream_name = "Hdmi1", 484 .cpu_dai_name = "HDMI1 Pin", 485 .codec_name = "snd-soc-dummy", 486 .codec_dai_name = "snd-soc-dummy-dai", 487 .platform_name = "0000:00:1f.3", 488 .dpcm_playback = 1, 489 .init = NULL, 490 .trigger = { 491 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 492 .nonatomic = 1, 493 .dynamic = 1, 494 }, 495 [SKL_DPCM_AUDIO_HDMI2_PB] = { 496 .name = "Skl HDMI Port2", 497 .stream_name = "Hdmi2", 498 .cpu_dai_name = "HDMI2 Pin", 499 .codec_name = "snd-soc-dummy", 500 .codec_dai_name = "snd-soc-dummy-dai", 501 .platform_name = "0000:00:1f.3", 502 .dpcm_playback = 1, 503 .init = NULL, 504 .trigger = { 505 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 506 .nonatomic = 1, 507 .dynamic = 1, 508 }, 509 [SKL_DPCM_AUDIO_HDMI3_PB] = { 510 .name = "Skl HDMI Port3", 511 .stream_name = "Hdmi3", 512 .cpu_dai_name = "HDMI3 Pin", 513 .codec_name = "snd-soc-dummy", 514 .codec_dai_name = "snd-soc-dummy-dai", 515 .platform_name = "0000:00:1f.3", 516 .trigger = { 517 SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 518 .dpcm_playback = 1, 519 .init = NULL, 520 .nonatomic = 1, 521 .dynamic = 1, 522 }, 523 524 /* Back End DAI links */ 525 { 526 /* SSP0 - Codec */ 527 .name = "SSP0-Codec", 528 .id = 0, 529 .cpu_dai_name = "SSP0 Pin", 530 .platform_name = "0000:00:1f.3", 531 .no_pcm = 1, 532 .codec_name = "MX98357A:00", 533 .codec_dai_name = SKL_MAXIM_CODEC_DAI, 534 .dai_fmt = SND_SOC_DAIFMT_I2S | 535 SND_SOC_DAIFMT_NB_NF | 536 SND_SOC_DAIFMT_CBS_CFS, 537 .ignore_pmdown_time = 1, 538 .be_hw_params_fixup = skylake_ssp_fixup, 539 .dpcm_playback = 1, 540 }, 541 { 542 /* SSP1 - Codec */ 543 .name = "SSP1-Codec", 544 .id = 1, 545 .cpu_dai_name = "SSP1 Pin", 546 .platform_name = "0000:00:1f.3", 547 .no_pcm = 1, 548 .codec_name = "i2c-10508825:00", 549 .codec_dai_name = SKL_NUVOTON_CODEC_DAI, 550 .init = skylake_nau8825_codec_init, 551 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 552 SND_SOC_DAIFMT_CBS_CFS, 553 .ignore_pmdown_time = 1, 554 .be_hw_params_fixup = skylake_ssp_fixup, 555 .ops = &skylake_nau8825_ops, 556 .dpcm_playback = 1, 557 .dpcm_capture = 1, 558 }, 559 { 560 .name = "dmic01", 561 .id = 2, 562 .cpu_dai_name = "DMIC01 Pin", 563 .codec_name = "dmic-codec", 564 .codec_dai_name = "dmic-hifi", 565 .platform_name = "0000:00:1f.3", 566 .be_hw_params_fixup = skylake_dmic_fixup, 567 .ignore_suspend = 1, 568 .dpcm_capture = 1, 569 .no_pcm = 1, 570 }, 571 { 572 .name = "iDisp1", 573 .id = 3, 574 .cpu_dai_name = "iDisp1 Pin", 575 .codec_name = "ehdaudio0D2", 576 .codec_dai_name = "intel-hdmi-hifi1", 577 .platform_name = "0000:00:1f.3", 578 .dpcm_playback = 1, 579 .init = skylake_hdmi1_init, 580 .no_pcm = 1, 581 }, 582 { 583 .name = "iDisp2", 584 .id = 4, 585 .cpu_dai_name = "iDisp2 Pin", 586 .codec_name = "ehdaudio0D2", 587 .codec_dai_name = "intel-hdmi-hifi2", 588 .platform_name = "0000:00:1f.3", 589 .init = skylake_hdmi2_init, 590 .dpcm_playback = 1, 591 .no_pcm = 1, 592 }, 593 { 594 .name = "iDisp3", 595 .id = 5, 596 .cpu_dai_name = "iDisp3 Pin", 597 .codec_name = "ehdaudio0D2", 598 .codec_dai_name = "intel-hdmi-hifi3", 599 .platform_name = "0000:00:1f.3", 600 .init = skylake_hdmi3_init, 601 .dpcm_playback = 1, 602 .no_pcm = 1, 603 }, 604 }; 605 606 static int skylake_card_late_probe(struct snd_soc_card *card) 607 { 608 struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(card); 609 struct skl_hdmi_pcm *pcm; 610 int err; 611 612 list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { 613 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device); 614 if (err < 0) 615 return err; 616 } 617 618 return 0; 619 } 620 621 /* skylake audio machine driver for SPT + NAU88L25 */ 622 static struct snd_soc_card skylake_audio_card = { 623 .name = "sklnau8825max", 624 .owner = THIS_MODULE, 625 .dai_link = skylake_dais, 626 .num_links = ARRAY_SIZE(skylake_dais), 627 .controls = skylake_controls, 628 .num_controls = ARRAY_SIZE(skylake_controls), 629 .dapm_widgets = skylake_widgets, 630 .num_dapm_widgets = ARRAY_SIZE(skylake_widgets), 631 .dapm_routes = skylake_map, 632 .num_dapm_routes = ARRAY_SIZE(skylake_map), 633 .fully_routed = true, 634 .late_probe = skylake_card_late_probe, 635 }; 636 637 static int skylake_audio_probe(struct platform_device *pdev) 638 { 639 struct skl_nau8825_private *ctx; 640 struct skl_machine_pdata *pdata; 641 642 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_ATOMIC); 643 if (!ctx) 644 return -ENOMEM; 645 646 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 647 648 skylake_audio_card.dev = &pdev->dev; 649 snd_soc_card_set_drvdata(&skylake_audio_card, ctx); 650 651 pdata = dev_get_drvdata(&pdev->dev); 652 if (pdata) 653 dmic_constraints = pdata->dmic_num == 2 ? 654 &constraints_dmic_2ch : &constraints_dmic_channels; 655 656 return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card); 657 } 658 659 static const struct platform_device_id skl_board_ids[] = { 660 { .name = "skl_n88l25_m98357a" }, 661 { .name = "kbl_n88l25_m98357a" }, 662 { } 663 }; 664 665 static struct platform_driver skylake_audio = { 666 .probe = skylake_audio_probe, 667 .driver = { 668 .name = "skl_n88l25_m98357a", 669 .pm = &snd_soc_pm_ops, 670 }, 671 .id_table = skl_board_ids, 672 }; 673 674 module_platform_driver(skylake_audio) 675 676 /* Module information */ 677 MODULE_DESCRIPTION("Audio Machine driver-NAU88L25 & MAX98357A in I2S mode"); 678 MODULE_AUTHOR("Rohit Ainapure <rohit.m.ainapure@intel.com"); 679 MODULE_LICENSE("GPL v2"); 680 MODULE_ALIAS("platform:skl_n88l25_m98357a"); 681 MODULE_ALIAS("platform:kbl_n88l25_m98357a"); 682