1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Intel Broxton-P I2S Machine Driver 4 * 5 * Copyright (C) 2014-2016, Intel Corporation. All rights reserved. 6 * 7 * Modified from: 8 * Intel Skylake I2S Machine driver 9 */ 10 11 #include <linux/module.h> 12 #include <linux/platform_device.h> 13 #include <sound/core.h> 14 #include <sound/pcm.h> 15 #include <sound/soc.h> 16 #include <sound/soc-acpi.h> 17 #include <sound/jack.h> 18 #include <sound/pcm_params.h> 19 #include "../../codecs/hdac_hdmi.h" 20 #include "../../codecs/rt298.h" 21 22 /* Headset jack detection DAPM pins */ 23 static struct snd_soc_jack broxton_headset; 24 static struct snd_soc_jack broxton_hdmi[3]; 25 26 struct bxt_hdmi_pcm { 27 struct list_head head; 28 struct snd_soc_dai *codec_dai; 29 int device; 30 }; 31 32 struct bxt_rt286_private { 33 struct list_head hdmi_pcm_list; 34 }; 35 36 enum { 37 BXT_DPCM_AUDIO_PB = 0, 38 BXT_DPCM_AUDIO_CP, 39 BXT_DPCM_AUDIO_REF_CP, 40 BXT_DPCM_AUDIO_DMIC_CP, 41 BXT_DPCM_AUDIO_HDMI1_PB, 42 BXT_DPCM_AUDIO_HDMI2_PB, 43 BXT_DPCM_AUDIO_HDMI3_PB, 44 }; 45 46 static struct snd_soc_jack_pin broxton_headset_pins[] = { 47 { 48 .pin = "Mic Jack", 49 .mask = SND_JACK_MICROPHONE, 50 }, 51 { 52 .pin = "Headphone Jack", 53 .mask = SND_JACK_HEADPHONE, 54 }, 55 }; 56 57 static const struct snd_kcontrol_new broxton_controls[] = { 58 SOC_DAPM_PIN_SWITCH("Speaker"), 59 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 60 SOC_DAPM_PIN_SWITCH("Mic Jack"), 61 }; 62 63 static const struct snd_soc_dapm_widget broxton_widgets[] = { 64 SND_SOC_DAPM_HP("Headphone Jack", NULL), 65 SND_SOC_DAPM_SPK("Speaker", NULL), 66 SND_SOC_DAPM_MIC("Mic Jack", NULL), 67 SND_SOC_DAPM_MIC("DMIC2", NULL), 68 SND_SOC_DAPM_MIC("SoC DMIC", NULL), 69 SND_SOC_DAPM_SPK("HDMI1", NULL), 70 SND_SOC_DAPM_SPK("HDMI2", NULL), 71 SND_SOC_DAPM_SPK("HDMI3", NULL), 72 }; 73 74 static const struct snd_soc_dapm_route broxton_rt298_map[] = { 75 /* speaker */ 76 {"Speaker", NULL, "SPOR"}, 77 {"Speaker", NULL, "SPOL"}, 78 79 /* HP jack connectors - unknown if we have jack detect */ 80 {"Headphone Jack", NULL, "HPO Pin"}, 81 82 /* other jacks */ 83 {"MIC1", NULL, "Mic Jack"}, 84 85 /* digital mics */ 86 {"DMIC1 Pin", NULL, "DMIC2"}, 87 {"DMic", NULL, "SoC DMIC"}, 88 89 {"HDMI1", NULL, "hif5-0 Output"}, 90 {"HDMI2", NULL, "hif6-0 Output"}, 91 {"HDMI2", NULL, "hif7-0 Output"}, 92 93 /* CODEC BE connections */ 94 { "AIF1 Playback", NULL, "ssp5 Tx"}, 95 { "ssp5 Tx", NULL, "codec0_out"}, 96 { "ssp5 Tx", NULL, "codec1_out"}, 97 98 { "codec0_in", NULL, "ssp5 Rx" }, 99 { "ssp5 Rx", NULL, "AIF1 Capture" }, 100 101 { "dmic01_hifi", NULL, "DMIC01 Rx" }, 102 { "DMIC01 Rx", NULL, "Capture" }, 103 104 { "hifi3", NULL, "iDisp3 Tx"}, 105 { "iDisp3 Tx", NULL, "iDisp3_out"}, 106 { "hifi2", NULL, "iDisp2 Tx"}, 107 { "iDisp2 Tx", NULL, "iDisp2_out"}, 108 { "hifi1", NULL, "iDisp1 Tx"}, 109 { "iDisp1 Tx", NULL, "iDisp1_out"}, 110 }; 111 112 static const struct snd_soc_dapm_route geminilake_rt298_map[] = { 113 /* speaker */ 114 {"Speaker", NULL, "SPOR"}, 115 {"Speaker", NULL, "SPOL"}, 116 117 /* HP jack connectors - unknown if we have jack detect */ 118 {"Headphone Jack", NULL, "HPO Pin"}, 119 120 /* other jacks */ 121 {"MIC1", NULL, "Mic Jack"}, 122 123 /* digital mics */ 124 {"DMIC1 Pin", NULL, "DMIC2"}, 125 {"DMic", NULL, "SoC DMIC"}, 126 127 {"HDMI1", NULL, "hif5-0 Output"}, 128 {"HDMI2", NULL, "hif6-0 Output"}, 129 {"HDMI2", NULL, "hif7-0 Output"}, 130 131 /* CODEC BE connections */ 132 { "AIF1 Playback", NULL, "ssp2 Tx"}, 133 { "ssp2 Tx", NULL, "codec0_out"}, 134 { "ssp2 Tx", NULL, "codec1_out"}, 135 136 { "codec0_in", NULL, "ssp2 Rx" }, 137 { "ssp2 Rx", NULL, "AIF1 Capture" }, 138 139 { "dmic01_hifi", NULL, "DMIC01 Rx" }, 140 { "DMIC01 Rx", NULL, "Capture" }, 141 142 { "dmic_voice", NULL, "DMIC16k Rx" }, 143 { "DMIC16k Rx", NULL, "Capture" }, 144 145 { "hifi3", NULL, "iDisp3 Tx"}, 146 { "iDisp3 Tx", NULL, "iDisp3_out"}, 147 { "hifi2", NULL, "iDisp2 Tx"}, 148 { "iDisp2 Tx", NULL, "iDisp2_out"}, 149 { "hifi1", NULL, "iDisp1 Tx"}, 150 { "iDisp1 Tx", NULL, "iDisp1_out"}, 151 }; 152 153 static int broxton_rt298_fe_init(struct snd_soc_pcm_runtime *rtd) 154 { 155 struct snd_soc_dapm_context *dapm; 156 struct snd_soc_component *component = rtd->cpu_dai->component; 157 158 dapm = snd_soc_component_get_dapm(component); 159 snd_soc_dapm_ignore_suspend(dapm, "Reference Capture"); 160 161 return 0; 162 } 163 164 static int broxton_rt298_codec_init(struct snd_soc_pcm_runtime *rtd) 165 { 166 struct snd_soc_component *component = rtd->codec_dai->component; 167 int ret = 0; 168 169 ret = snd_soc_card_jack_new(rtd->card, "Headset", 170 SND_JACK_HEADSET | SND_JACK_BTN_0, 171 &broxton_headset, 172 broxton_headset_pins, ARRAY_SIZE(broxton_headset_pins)); 173 174 if (ret) 175 return ret; 176 177 rt298_mic_detect(component, &broxton_headset); 178 179 snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC"); 180 181 return 0; 182 } 183 184 static int broxton_hdmi_init(struct snd_soc_pcm_runtime *rtd) 185 { 186 struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(rtd->card); 187 struct snd_soc_dai *dai = rtd->codec_dai; 188 struct bxt_hdmi_pcm *pcm; 189 190 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); 191 if (!pcm) 192 return -ENOMEM; 193 194 pcm->device = BXT_DPCM_AUDIO_HDMI1_PB + dai->id; 195 pcm->codec_dai = dai; 196 197 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); 198 199 return 0; 200 } 201 202 static int broxton_ssp5_fixup(struct snd_soc_pcm_runtime *rtd, 203 struct snd_pcm_hw_params *params) 204 { 205 struct snd_interval *rate = hw_param_interval(params, 206 SNDRV_PCM_HW_PARAM_RATE); 207 struct snd_interval *channels = hw_param_interval(params, 208 SNDRV_PCM_HW_PARAM_CHANNELS); 209 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 210 211 /* The ADSP will covert the FE rate to 48k, stereo */ 212 rate->min = rate->max = 48000; 213 channels->min = channels->max = 2; 214 215 /* set SSP5 to 24 bit */ 216 snd_mask_none(fmt); 217 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 218 219 return 0; 220 } 221 222 static int broxton_rt298_hw_params(struct snd_pcm_substream *substream, 223 struct snd_pcm_hw_params *params) 224 { 225 struct snd_soc_pcm_runtime *rtd = substream->private_data; 226 struct snd_soc_dai *codec_dai = rtd->codec_dai; 227 int ret; 228 229 ret = snd_soc_dai_set_sysclk(codec_dai, RT298_SCLK_S_PLL, 230 19200000, SND_SOC_CLOCK_IN); 231 if (ret < 0) { 232 dev_err(rtd->dev, "can't set codec sysclk configuration\n"); 233 return ret; 234 } 235 236 return ret; 237 } 238 239 static const struct snd_soc_ops broxton_rt298_ops = { 240 .hw_params = broxton_rt298_hw_params, 241 }; 242 243 static const unsigned int rates[] = { 244 48000, 245 }; 246 247 static const struct snd_pcm_hw_constraint_list constraints_rates = { 248 .count = ARRAY_SIZE(rates), 249 .list = rates, 250 .mask = 0, 251 }; 252 253 static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd, 254 struct snd_pcm_hw_params *params) 255 { 256 struct snd_interval *channels = hw_param_interval(params, 257 SNDRV_PCM_HW_PARAM_CHANNELS); 258 channels->min = channels->max = 4; 259 260 return 0; 261 } 262 263 static const unsigned int channels_dmic[] = { 264 1, 2, 3, 4, 265 }; 266 267 static const struct snd_pcm_hw_constraint_list constraints_dmic_channels = { 268 .count = ARRAY_SIZE(channels_dmic), 269 .list = channels_dmic, 270 .mask = 0, 271 }; 272 273 static int broxton_dmic_startup(struct snd_pcm_substream *substream) 274 { 275 struct snd_pcm_runtime *runtime = substream->runtime; 276 277 runtime->hw.channels_max = 4; 278 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 279 &constraints_dmic_channels); 280 281 return snd_pcm_hw_constraint_list(substream->runtime, 0, 282 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 283 } 284 285 static const struct snd_soc_ops broxton_dmic_ops = { 286 .startup = broxton_dmic_startup, 287 }; 288 289 static const unsigned int channels[] = { 290 2, 291 }; 292 293 static const struct snd_pcm_hw_constraint_list constraints_channels = { 294 .count = ARRAY_SIZE(channels), 295 .list = channels, 296 .mask = 0, 297 }; 298 299 static int bxt_fe_startup(struct snd_pcm_substream *substream) 300 { 301 struct snd_pcm_runtime *runtime = substream->runtime; 302 303 /* 304 * on this platform for PCM device we support: 305 * 48Khz 306 * stereo 307 * 16-bit audio 308 */ 309 310 runtime->hw.channels_max = 2; 311 snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS, 312 &constraints_channels); 313 314 runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE; 315 snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16); 316 snd_pcm_hw_constraint_list(runtime, 0, 317 SNDRV_PCM_HW_PARAM_RATE, &constraints_rates); 318 319 return 0; 320 } 321 322 static const struct snd_soc_ops broxton_rt286_fe_ops = { 323 .startup = bxt_fe_startup, 324 }; 325 326 /* broxton digital audio interface glue - connects codec <--> CPU */ 327 static struct snd_soc_dai_link broxton_rt298_dais[] = { 328 /* Front End DAI links */ 329 [BXT_DPCM_AUDIO_PB] = 330 { 331 .name = "Bxt Audio Port", 332 .stream_name = "Audio", 333 .cpu_dai_name = "System Pin", 334 .platform_name = "0000:00:0e.0", 335 .nonatomic = 1, 336 .dynamic = 1, 337 .codec_name = "snd-soc-dummy", 338 .codec_dai_name = "snd-soc-dummy-dai", 339 .init = broxton_rt298_fe_init, 340 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 341 .dpcm_playback = 1, 342 .ops = &broxton_rt286_fe_ops, 343 }, 344 [BXT_DPCM_AUDIO_CP] = 345 { 346 .name = "Bxt Audio Capture Port", 347 .stream_name = "Audio Record", 348 .cpu_dai_name = "System Pin", 349 .platform_name = "0000:00:0e.0", 350 .nonatomic = 1, 351 .dynamic = 1, 352 .codec_name = "snd-soc-dummy", 353 .codec_dai_name = "snd-soc-dummy-dai", 354 .trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST}, 355 .dpcm_capture = 1, 356 .ops = &broxton_rt286_fe_ops, 357 }, 358 [BXT_DPCM_AUDIO_REF_CP] = 359 { 360 .name = "Bxt Audio Reference cap", 361 .stream_name = "refcap", 362 .cpu_dai_name = "Reference Pin", 363 .codec_name = "snd-soc-dummy", 364 .codec_dai_name = "snd-soc-dummy-dai", 365 .platform_name = "0000:00:0e.0", 366 .init = NULL, 367 .dpcm_capture = 1, 368 .nonatomic = 1, 369 .dynamic = 1, 370 }, 371 [BXT_DPCM_AUDIO_DMIC_CP] = 372 { 373 .name = "Bxt Audio DMIC cap", 374 .stream_name = "dmiccap", 375 .cpu_dai_name = "DMIC Pin", 376 .codec_name = "snd-soc-dummy", 377 .codec_dai_name = "snd-soc-dummy-dai", 378 .platform_name = "0000:00:0e.0", 379 .init = NULL, 380 .dpcm_capture = 1, 381 .nonatomic = 1, 382 .dynamic = 1, 383 .ops = &broxton_dmic_ops, 384 }, 385 [BXT_DPCM_AUDIO_HDMI1_PB] = 386 { 387 .name = "Bxt HDMI Port1", 388 .stream_name = "Hdmi1", 389 .cpu_dai_name = "HDMI1 Pin", 390 .codec_name = "snd-soc-dummy", 391 .codec_dai_name = "snd-soc-dummy-dai", 392 .platform_name = "0000:00:0e.0", 393 .dpcm_playback = 1, 394 .init = NULL, 395 .nonatomic = 1, 396 .dynamic = 1, 397 }, 398 [BXT_DPCM_AUDIO_HDMI2_PB] = 399 { 400 .name = "Bxt HDMI Port2", 401 .stream_name = "Hdmi2", 402 .cpu_dai_name = "HDMI2 Pin", 403 .codec_name = "snd-soc-dummy", 404 .codec_dai_name = "snd-soc-dummy-dai", 405 .platform_name = "0000:00:0e.0", 406 .dpcm_playback = 1, 407 .init = NULL, 408 .nonatomic = 1, 409 .dynamic = 1, 410 }, 411 [BXT_DPCM_AUDIO_HDMI3_PB] = 412 { 413 .name = "Bxt HDMI Port3", 414 .stream_name = "Hdmi3", 415 .cpu_dai_name = "HDMI3 Pin", 416 .codec_name = "snd-soc-dummy", 417 .codec_dai_name = "snd-soc-dummy-dai", 418 .platform_name = "0000:00:0e.0", 419 .dpcm_playback = 1, 420 .init = NULL, 421 .nonatomic = 1, 422 .dynamic = 1, 423 }, 424 /* Back End DAI links */ 425 { 426 /* SSP5 - Codec */ 427 .name = "SSP5-Codec", 428 .id = 0, 429 .cpu_dai_name = "SSP5 Pin", 430 .platform_name = "0000:00:0e.0", 431 .no_pcm = 1, 432 .codec_name = "i2c-INT343A:00", 433 .codec_dai_name = "rt298-aif1", 434 .init = broxton_rt298_codec_init, 435 .dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | 436 SND_SOC_DAIFMT_CBS_CFS, 437 .ignore_pmdown_time = 1, 438 .be_hw_params_fixup = broxton_ssp5_fixup, 439 .ops = &broxton_rt298_ops, 440 .dpcm_playback = 1, 441 .dpcm_capture = 1, 442 }, 443 { 444 .name = "dmic01", 445 .id = 1, 446 .cpu_dai_name = "DMIC01 Pin", 447 .codec_name = "dmic-codec", 448 .codec_dai_name = "dmic-hifi", 449 .platform_name = "0000:00:0e.0", 450 .be_hw_params_fixup = broxton_dmic_fixup, 451 .ignore_suspend = 1, 452 .dpcm_capture = 1, 453 .no_pcm = 1, 454 }, 455 { 456 .name = "dmic16k", 457 .id = 2, 458 .cpu_dai_name = "DMIC16k Pin", 459 .codec_name = "dmic-codec", 460 .codec_dai_name = "dmic-hifi", 461 .platform_name = "0000:00:0e.0", 462 .be_hw_params_fixup = broxton_dmic_fixup, 463 .ignore_suspend = 1, 464 .dpcm_capture = 1, 465 .no_pcm = 1, 466 }, 467 { 468 .name = "iDisp1", 469 .id = 3, 470 .cpu_dai_name = "iDisp1 Pin", 471 .codec_name = "ehdaudio0D2", 472 .codec_dai_name = "intel-hdmi-hifi1", 473 .platform_name = "0000:00:0e.0", 474 .init = broxton_hdmi_init, 475 .dpcm_playback = 1, 476 .no_pcm = 1, 477 }, 478 { 479 .name = "iDisp2", 480 .id = 4, 481 .cpu_dai_name = "iDisp2 Pin", 482 .codec_name = "ehdaudio0D2", 483 .codec_dai_name = "intel-hdmi-hifi2", 484 .platform_name = "0000:00:0e.0", 485 .init = broxton_hdmi_init, 486 .dpcm_playback = 1, 487 .no_pcm = 1, 488 }, 489 { 490 .name = "iDisp3", 491 .id = 5, 492 .cpu_dai_name = "iDisp3 Pin", 493 .codec_name = "ehdaudio0D2", 494 .codec_dai_name = "intel-hdmi-hifi3", 495 .platform_name = "0000:00:0e.0", 496 .init = broxton_hdmi_init, 497 .dpcm_playback = 1, 498 .no_pcm = 1, 499 }, 500 }; 501 502 #define NAME_SIZE 32 503 static int bxt_card_late_probe(struct snd_soc_card *card) 504 { 505 struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(card); 506 struct bxt_hdmi_pcm *pcm; 507 struct snd_soc_component *component = NULL; 508 int err, i = 0; 509 char jack_name[NAME_SIZE]; 510 511 list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { 512 component = pcm->codec_dai->component; 513 snprintf(jack_name, sizeof(jack_name), 514 "HDMI/DP, pcm=%d Jack", pcm->device); 515 err = snd_soc_card_jack_new(card, jack_name, 516 SND_JACK_AVOUT, &broxton_hdmi[i], 517 NULL, 0); 518 519 if (err) 520 return err; 521 522 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device, 523 &broxton_hdmi[i]); 524 if (err < 0) 525 return err; 526 527 i++; 528 } 529 530 if (!component) 531 return -EINVAL; 532 533 return hdac_hdmi_jack_port_init(component, &card->dapm); 534 } 535 536 537 /* broxton audio machine driver for SPT + RT298S */ 538 static struct snd_soc_card broxton_rt298 = { 539 .name = "broxton-rt298", 540 .dai_link = broxton_rt298_dais, 541 .num_links = ARRAY_SIZE(broxton_rt298_dais), 542 .controls = broxton_controls, 543 .num_controls = ARRAY_SIZE(broxton_controls), 544 .dapm_widgets = broxton_widgets, 545 .num_dapm_widgets = ARRAY_SIZE(broxton_widgets), 546 .dapm_routes = broxton_rt298_map, 547 .num_dapm_routes = ARRAY_SIZE(broxton_rt298_map), 548 .fully_routed = true, 549 .late_probe = bxt_card_late_probe, 550 551 }; 552 553 static struct snd_soc_card geminilake_rt298 = { 554 .name = "geminilake-rt298", 555 .dai_link = broxton_rt298_dais, 556 .num_links = ARRAY_SIZE(broxton_rt298_dais), 557 .controls = broxton_controls, 558 .num_controls = ARRAY_SIZE(broxton_controls), 559 .dapm_widgets = broxton_widgets, 560 .num_dapm_widgets = ARRAY_SIZE(broxton_widgets), 561 .dapm_routes = geminilake_rt298_map, 562 .num_dapm_routes = ARRAY_SIZE(geminilake_rt298_map), 563 .fully_routed = true, 564 .late_probe = bxt_card_late_probe, 565 }; 566 567 static int broxton_audio_probe(struct platform_device *pdev) 568 { 569 struct bxt_rt286_private *ctx; 570 struct snd_soc_card *card = 571 (struct snd_soc_card *)pdev->id_entry->driver_data; 572 struct snd_soc_acpi_mach *mach; 573 const char *platform_name; 574 int ret; 575 int i; 576 577 for (i = 0; i < ARRAY_SIZE(broxton_rt298_dais); i++) { 578 if (!strncmp(card->dai_link[i].codec_name, "i2c-INT343A:00", 579 I2C_NAME_SIZE)) { 580 if (!strncmp(card->name, "broxton-rt298", 581 PLATFORM_NAME_SIZE)) { 582 card->dai_link[i].name = "SSP5-Codec"; 583 card->dai_link[i].cpu_dai_name = "SSP5 Pin"; 584 } else if (!strncmp(card->name, "geminilake-rt298", 585 PLATFORM_NAME_SIZE)) { 586 card->dai_link[i].name = "SSP2-Codec"; 587 card->dai_link[i].cpu_dai_name = "SSP2 Pin"; 588 } 589 } 590 } 591 592 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 593 if (!ctx) 594 return -ENOMEM; 595 596 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 597 598 card->dev = &pdev->dev; 599 snd_soc_card_set_drvdata(card, ctx); 600 601 /* override plaform name, if required */ 602 mach = (&pdev->dev)->platform_data; 603 platform_name = mach->mach_params.platform; 604 605 ret = snd_soc_fixup_dai_links_platform_name(card, 606 platform_name); 607 if (ret) 608 return ret; 609 610 return devm_snd_soc_register_card(&pdev->dev, card); 611 } 612 613 static const struct platform_device_id bxt_board_ids[] = { 614 { .name = "bxt_alc298s_i2s", .driver_data = 615 (unsigned long)&broxton_rt298 }, 616 { .name = "glk_alc298s_i2s", .driver_data = 617 (unsigned long)&geminilake_rt298 }, 618 {} 619 }; 620 621 static struct platform_driver broxton_audio = { 622 .probe = broxton_audio_probe, 623 .driver = { 624 .name = "bxt_alc298s_i2s", 625 .pm = &snd_soc_pm_ops, 626 }, 627 .id_table = bxt_board_ids, 628 }; 629 module_platform_driver(broxton_audio) 630 631 /* Module information */ 632 MODULE_AUTHOR("Ramesh Babu <Ramesh.Babu@intel.com>"); 633 MODULE_AUTHOR("Senthilnathan Veppur <senthilnathanx.veppur@intel.com>"); 634 MODULE_DESCRIPTION("Intel SST Audio for Broxton"); 635 MODULE_LICENSE("GPL v2"); 636 MODULE_ALIAS("platform:bxt_alc298s_i2s"); 637 MODULE_ALIAS("platform:glk_alc298s_i2s"); 638