1 // SPDX-License-Identifier: GPL-2.0-only 2 // Copyright(c) 2021 Intel Corporation. 3 4 /* 5 * Intel SOF Machine Driver with Cirrus Logic CS42L42 Codec 6 * and speaker codec MAX98357A 7 */ 8 #include <linux/i2c.h> 9 #include <linux/input.h> 10 #include <linux/module.h> 11 #include <linux/platform_device.h> 12 #include <linux/regulator/consumer.h> 13 #include <linux/dmi.h> 14 #include <sound/core.h> 15 #include <sound/jack.h> 16 #include <sound/pcm.h> 17 #include <sound/pcm_params.h> 18 #include <sound/soc.h> 19 #include <sound/sof.h> 20 #include <sound/soc-acpi.h> 21 #include <dt-bindings/sound/cs42l42.h> 22 #include "../../codecs/hdac_hdmi.h" 23 #include "../common/soc-intel-quirks.h" 24 #include "hda_dsp_common.h" 25 #include "sof_maxim_common.h" 26 27 #define NAME_SIZE 32 28 29 #define SOF_CS42L42_SSP_CODEC(quirk) ((quirk) & GENMASK(2, 0)) 30 #define SOF_CS42L42_SSP_CODEC_MASK (GENMASK(2, 0)) 31 #define SOF_SPEAKER_AMP_PRESENT BIT(3) 32 #define SOF_CS42L42_SSP_AMP_SHIFT 4 33 #define SOF_CS42L42_SSP_AMP_MASK (GENMASK(6, 4)) 34 #define SOF_CS42L42_SSP_AMP(quirk) \ 35 (((quirk) << SOF_CS42L42_SSP_AMP_SHIFT) & SOF_CS42L42_SSP_AMP_MASK) 36 #define SOF_CS42L42_NUM_HDMIDEV_SHIFT 7 37 #define SOF_CS42L42_NUM_HDMIDEV_MASK (GENMASK(9, 7)) 38 #define SOF_CS42L42_NUM_HDMIDEV(quirk) \ 39 (((quirk) << SOF_CS42L42_NUM_HDMIDEV_SHIFT) & SOF_CS42L42_NUM_HDMIDEV_MASK) 40 #define SOF_CS42L42_DAILINK_SHIFT 10 41 #define SOF_CS42L42_DAILINK_MASK (GENMASK(24, 10)) 42 #define SOF_CS42L42_DAILINK(link1, link2, link3, link4, link5) \ 43 ((((link1) | ((link2) << 3) | ((link3) << 6) | ((link4) << 9) | ((link5) << 12)) << SOF_CS42L42_DAILINK_SHIFT) & SOF_CS42L42_DAILINK_MASK) 44 #define SOF_MAX98357A_SPEAKER_AMP_PRESENT BIT(25) 45 #define SOF_MAX98360A_SPEAKER_AMP_PRESENT BIT(26) 46 47 enum { 48 LINK_NONE = 0, 49 LINK_HP = 1, 50 LINK_SPK = 2, 51 LINK_DMIC = 3, 52 LINK_HDMI = 4, 53 }; 54 55 /* Default: SSP2 */ 56 static unsigned long sof_cs42l42_quirk = SOF_CS42L42_SSP_CODEC(2); 57 58 struct sof_hdmi_pcm { 59 struct list_head head; 60 struct snd_soc_dai *codec_dai; 61 struct snd_soc_jack hdmi_jack; 62 int device; 63 }; 64 65 struct sof_card_private { 66 struct snd_soc_jack headset_jack; 67 struct list_head hdmi_pcm_list; 68 bool common_hdmi_codec_drv; 69 }; 70 71 static int sof_hdmi_init(struct snd_soc_pcm_runtime *rtd) 72 { 73 struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card); 74 struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0); 75 struct sof_hdmi_pcm *pcm; 76 77 pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL); 78 if (!pcm) 79 return -ENOMEM; 80 81 /* dai_link id is 1:1 mapped to the PCM device */ 82 pcm->device = rtd->dai_link->id; 83 pcm->codec_dai = dai; 84 85 list_add_tail(&pcm->head, &ctx->hdmi_pcm_list); 86 87 return 0; 88 } 89 90 static int sof_cs42l42_init(struct snd_soc_pcm_runtime *rtd) 91 { 92 struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card); 93 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; 94 struct snd_soc_jack *jack = &ctx->headset_jack; 95 int ret; 96 97 /* 98 * Headset buttons map to the google Reference headset. 99 * These can be configured by userspace. 100 */ 101 ret = snd_soc_card_jack_new(rtd->card, "Headset Jack", 102 SND_JACK_HEADSET | SND_JACK_BTN_0 | 103 SND_JACK_BTN_1 | SND_JACK_BTN_2 | 104 SND_JACK_BTN_3, 105 jack); 106 if (ret) { 107 dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret); 108 return ret; 109 } 110 111 snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE); 112 snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP); 113 snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN); 114 snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOICECOMMAND); 115 116 ret = snd_soc_component_set_jack(component, jack, NULL); 117 if (ret) { 118 dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret); 119 return ret; 120 } 121 122 return ret; 123 }; 124 125 static void sof_cs42l42_exit(struct snd_soc_pcm_runtime *rtd) 126 { 127 struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component; 128 129 snd_soc_component_set_jack(component, NULL, NULL); 130 } 131 132 static int sof_cs42l42_hw_params(struct snd_pcm_substream *substream, 133 struct snd_pcm_hw_params *params) 134 { 135 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream); 136 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0); 137 int clk_freq, ret; 138 139 clk_freq = sof_dai_get_bclk(rtd); /* BCLK freq */ 140 141 if (clk_freq <= 0) { 142 dev_err(rtd->dev, "get bclk freq failed: %d\n", clk_freq); 143 return -EINVAL; 144 } 145 146 /* Configure sysclk for codec */ 147 ret = snd_soc_dai_set_sysclk(codec_dai, 0, 148 clk_freq, SND_SOC_CLOCK_IN); 149 if (ret < 0) 150 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret); 151 152 return ret; 153 } 154 155 static const struct snd_soc_ops sof_cs42l42_ops = { 156 .hw_params = sof_cs42l42_hw_params, 157 }; 158 159 static struct snd_soc_dai_link_component platform_component[] = { 160 { 161 /* name might be overridden during probe */ 162 .name = "0000:00:1f.3" 163 } 164 }; 165 166 static int sof_card_late_probe(struct snd_soc_card *card) 167 { 168 struct sof_card_private *ctx = snd_soc_card_get_drvdata(card); 169 struct snd_soc_component *component = NULL; 170 char jack_name[NAME_SIZE]; 171 struct sof_hdmi_pcm *pcm; 172 int err; 173 174 if (list_empty(&ctx->hdmi_pcm_list)) 175 return -EINVAL; 176 177 if (ctx->common_hdmi_codec_drv) { 178 pcm = list_first_entry(&ctx->hdmi_pcm_list, struct sof_hdmi_pcm, 179 head); 180 component = pcm->codec_dai->component; 181 return hda_dsp_hdmi_build_controls(card, component); 182 } 183 184 list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) { 185 component = pcm->codec_dai->component; 186 snprintf(jack_name, sizeof(jack_name), 187 "HDMI/DP, pcm=%d Jack", pcm->device); 188 err = snd_soc_card_jack_new(card, jack_name, 189 SND_JACK_AVOUT, &pcm->hdmi_jack); 190 191 if (err) 192 return err; 193 194 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device, 195 &pcm->hdmi_jack); 196 if (err < 0) 197 return err; 198 } 199 200 return hdac_hdmi_jack_port_init(component, &card->dapm); 201 } 202 203 static const struct snd_kcontrol_new sof_controls[] = { 204 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 205 SOC_DAPM_PIN_SWITCH("Headset Mic"), 206 }; 207 208 static const struct snd_soc_dapm_widget sof_widgets[] = { 209 SND_SOC_DAPM_HP("Headphone Jack", NULL), 210 SND_SOC_DAPM_MIC("Headset Mic", NULL), 211 }; 212 213 static const struct snd_soc_dapm_widget dmic_widgets[] = { 214 SND_SOC_DAPM_MIC("SoC DMIC", NULL), 215 }; 216 217 static const struct snd_soc_dapm_route sof_map[] = { 218 /* HP jack connectors - unknown if we have jack detection */ 219 {"Headphone Jack", NULL, "HP"}, 220 221 /* other jacks */ 222 {"HS", NULL, "Headset Mic"}, 223 }; 224 225 static const struct snd_soc_dapm_route dmic_map[] = { 226 /* digital mics */ 227 {"DMic", NULL, "SoC DMIC"}, 228 }; 229 230 static int dmic_init(struct snd_soc_pcm_runtime *rtd) 231 { 232 struct snd_soc_card *card = rtd->card; 233 int ret; 234 235 ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets, 236 ARRAY_SIZE(dmic_widgets)); 237 if (ret) { 238 dev_err(card->dev, "DMic widget addition failed: %d\n", ret); 239 /* Don't need to add routes if widget addition failed */ 240 return ret; 241 } 242 243 ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map, 244 ARRAY_SIZE(dmic_map)); 245 246 if (ret) 247 dev_err(card->dev, "DMic map addition failed: %d\n", ret); 248 249 return ret; 250 } 251 252 /* sof audio machine driver for cs42l42 codec */ 253 static struct snd_soc_card sof_audio_card_cs42l42 = { 254 .name = "cs42l42", /* the sof- prefix is added by the core */ 255 .owner = THIS_MODULE, 256 .controls = sof_controls, 257 .num_controls = ARRAY_SIZE(sof_controls), 258 .dapm_widgets = sof_widgets, 259 .num_dapm_widgets = ARRAY_SIZE(sof_widgets), 260 .dapm_routes = sof_map, 261 .num_dapm_routes = ARRAY_SIZE(sof_map), 262 .fully_routed = true, 263 .late_probe = sof_card_late_probe, 264 }; 265 266 static struct snd_soc_dai_link_component cs42l42_component[] = { 267 { 268 .name = "i2c-10134242:00", 269 .dai_name = "cs42l42", 270 } 271 }; 272 273 static struct snd_soc_dai_link_component dmic_component[] = { 274 { 275 .name = "dmic-codec", 276 .dai_name = "dmic-hifi", 277 } 278 }; 279 280 static int create_spk_amp_dai_links(struct device *dev, 281 struct snd_soc_dai_link *links, 282 struct snd_soc_dai_link_component *cpus, 283 int *id, int ssp_amp) 284 { 285 int ret = 0; 286 287 /* speaker amp */ 288 if (!(sof_cs42l42_quirk & SOF_SPEAKER_AMP_PRESENT)) 289 return 0; 290 291 links[*id].name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", 292 ssp_amp); 293 if (!links[*id].name) { 294 ret = -ENOMEM; 295 goto devm_err; 296 } 297 298 links[*id].id = *id; 299 300 if (sof_cs42l42_quirk & SOF_MAX98357A_SPEAKER_AMP_PRESENT) { 301 max_98357a_dai_link(&links[*id]); 302 } else if (sof_cs42l42_quirk & SOF_MAX98360A_SPEAKER_AMP_PRESENT) { 303 max_98360a_dai_link(&links[*id]); 304 } else { 305 dev_err(dev, "no amp defined\n"); 306 ret = -EINVAL; 307 goto devm_err; 308 } 309 310 links[*id].platforms = platform_component; 311 links[*id].num_platforms = ARRAY_SIZE(platform_component); 312 links[*id].dpcm_playback = 1; 313 links[*id].no_pcm = 1; 314 links[*id].cpus = &cpus[*id]; 315 links[*id].num_cpus = 1; 316 317 links[*id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 318 "SSP%d Pin", ssp_amp); 319 if (!links[*id].cpus->dai_name) { 320 ret = -ENOMEM; 321 goto devm_err; 322 } 323 324 (*id)++; 325 326 devm_err: 327 return ret; 328 } 329 330 static int create_hp_codec_dai_links(struct device *dev, 331 struct snd_soc_dai_link *links, 332 struct snd_soc_dai_link_component *cpus, 333 int *id, int ssp_codec) 334 { 335 /* codec SSP */ 336 links[*id].name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", 337 ssp_codec); 338 if (!links[*id].name) 339 goto devm_err; 340 341 links[*id].id = *id; 342 links[*id].codecs = cs42l42_component; 343 links[*id].num_codecs = ARRAY_SIZE(cs42l42_component); 344 links[*id].platforms = platform_component; 345 links[*id].num_platforms = ARRAY_SIZE(platform_component); 346 links[*id].init = sof_cs42l42_init; 347 links[*id].exit = sof_cs42l42_exit; 348 links[*id].ops = &sof_cs42l42_ops; 349 links[*id].dpcm_playback = 1; 350 links[*id].dpcm_capture = 1; 351 links[*id].no_pcm = 1; 352 links[*id].cpus = &cpus[*id]; 353 links[*id].num_cpus = 1; 354 355 links[*id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, 356 "SSP%d Pin", 357 ssp_codec); 358 if (!links[*id].cpus->dai_name) 359 goto devm_err; 360 361 (*id)++; 362 363 return 0; 364 365 devm_err: 366 return -ENOMEM; 367 } 368 369 static int create_dmic_dai_links(struct device *dev, 370 struct snd_soc_dai_link *links, 371 struct snd_soc_dai_link_component *cpus, 372 int *id, int dmic_be_num) 373 { 374 int i; 375 376 /* dmic */ 377 if (dmic_be_num <= 0) 378 return 0; 379 380 /* at least we have dmic01 */ 381 links[*id].name = "dmic01"; 382 links[*id].cpus = &cpus[*id]; 383 links[*id].cpus->dai_name = "DMIC01 Pin"; 384 links[*id].init = dmic_init; 385 if (dmic_be_num > 1) { 386 /* set up 2 BE links at most */ 387 links[*id + 1].name = "dmic16k"; 388 links[*id + 1].cpus = &cpus[*id + 1]; 389 links[*id + 1].cpus->dai_name = "DMIC16k Pin"; 390 dmic_be_num = 2; 391 } 392 393 for (i = 0; i < dmic_be_num; i++) { 394 links[*id].id = *id; 395 links[*id].num_cpus = 1; 396 links[*id].codecs = dmic_component; 397 links[*id].num_codecs = ARRAY_SIZE(dmic_component); 398 links[*id].platforms = platform_component; 399 links[*id].num_platforms = ARRAY_SIZE(platform_component); 400 links[*id].ignore_suspend = 1; 401 links[*id].dpcm_capture = 1; 402 links[*id].no_pcm = 1; 403 404 (*id)++; 405 } 406 407 return 0; 408 } 409 410 static int create_hdmi_dai_links(struct device *dev, 411 struct snd_soc_dai_link *links, 412 struct snd_soc_dai_link_component *cpus, 413 int *id, int hdmi_num) 414 { 415 struct snd_soc_dai_link_component *idisp_components; 416 int i; 417 418 /* HDMI */ 419 if (hdmi_num <= 0) 420 return 0; 421 422 idisp_components = devm_kzalloc(dev, 423 sizeof(struct snd_soc_dai_link_component) * 424 hdmi_num, GFP_KERNEL); 425 if (!idisp_components) 426 goto devm_err; 427 428 for (i = 1; i <= hdmi_num; i++) { 429 links[*id].name = devm_kasprintf(dev, GFP_KERNEL, 430 "iDisp%d", i); 431 if (!links[*id].name) 432 goto devm_err; 433 434 links[*id].id = *id; 435 links[*id].cpus = &cpus[*id]; 436 links[*id].num_cpus = 1; 437 links[*id].cpus->dai_name = devm_kasprintf(dev, 438 GFP_KERNEL, 439 "iDisp%d Pin", 440 i); 441 if (!links[*id].cpus->dai_name) 442 goto devm_err; 443 444 idisp_components[i - 1].name = "ehdaudio0D2"; 445 idisp_components[i - 1].dai_name = devm_kasprintf(dev, 446 GFP_KERNEL, 447 "intel-hdmi-hifi%d", 448 i); 449 if (!idisp_components[i - 1].dai_name) 450 goto devm_err; 451 452 links[*id].codecs = &idisp_components[i - 1]; 453 links[*id].num_codecs = 1; 454 links[*id].platforms = platform_component; 455 links[*id].num_platforms = ARRAY_SIZE(platform_component); 456 links[*id].init = sof_hdmi_init; 457 links[*id].dpcm_playback = 1; 458 links[*id].no_pcm = 1; 459 460 (*id)++; 461 } 462 463 return 0; 464 465 devm_err: 466 return -ENOMEM; 467 } 468 469 static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev, 470 int ssp_codec, 471 int ssp_amp, 472 int dmic_be_num, 473 int hdmi_num) 474 { 475 struct snd_soc_dai_link_component *cpus; 476 struct snd_soc_dai_link *links; 477 int ret, id = 0, link_seq; 478 479 links = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link) * 480 sof_audio_card_cs42l42.num_links, GFP_KERNEL); 481 cpus = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component) * 482 sof_audio_card_cs42l42.num_links, GFP_KERNEL); 483 if (!links || !cpus) 484 goto devm_err; 485 486 link_seq = (sof_cs42l42_quirk & SOF_CS42L42_DAILINK_MASK) >> SOF_CS42L42_DAILINK_SHIFT; 487 488 while (link_seq) { 489 int link_type = link_seq & 0x07; 490 491 switch (link_type) { 492 case LINK_HP: 493 ret = create_hp_codec_dai_links(dev, links, cpus, &id, ssp_codec); 494 if (ret < 0) { 495 dev_err(dev, "fail to create hp codec dai links, ret %d\n", 496 ret); 497 goto devm_err; 498 } 499 break; 500 case LINK_SPK: 501 ret = create_spk_amp_dai_links(dev, links, cpus, &id, ssp_amp); 502 if (ret < 0) { 503 dev_err(dev, "fail to create spk amp dai links, ret %d\n", 504 ret); 505 goto devm_err; 506 } 507 break; 508 case LINK_DMIC: 509 ret = create_dmic_dai_links(dev, links, cpus, &id, dmic_be_num); 510 if (ret < 0) { 511 dev_err(dev, "fail to create dmic dai links, ret %d\n", 512 ret); 513 goto devm_err; 514 } 515 break; 516 case LINK_HDMI: 517 ret = create_hdmi_dai_links(dev, links, cpus, &id, hdmi_num); 518 if (ret < 0) { 519 dev_err(dev, "fail to create hdmi dai links, ret %d\n", 520 ret); 521 goto devm_err; 522 } 523 break; 524 case LINK_NONE: 525 /* caught here if it's not used as terminator in macro */ 526 default: 527 dev_err(dev, "invalid link type %d\n", link_type); 528 goto devm_err; 529 } 530 531 link_seq >>= 3; 532 } 533 534 return links; 535 devm_err: 536 return NULL; 537 } 538 539 static int sof_audio_probe(struct platform_device *pdev) 540 { 541 struct snd_soc_dai_link *dai_links; 542 struct snd_soc_acpi_mach *mach; 543 struct sof_card_private *ctx; 544 int dmic_be_num, hdmi_num; 545 int ret, ssp_amp, ssp_codec; 546 547 ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL); 548 if (!ctx) 549 return -ENOMEM; 550 551 if (pdev->id_entry && pdev->id_entry->driver_data) 552 sof_cs42l42_quirk = (unsigned long)pdev->id_entry->driver_data; 553 554 mach = pdev->dev.platform_data; 555 556 if (soc_intel_is_glk()) { 557 dmic_be_num = 1; 558 hdmi_num = 3; 559 } else { 560 dmic_be_num = 2; 561 hdmi_num = (sof_cs42l42_quirk & SOF_CS42L42_NUM_HDMIDEV_MASK) >> 562 SOF_CS42L42_NUM_HDMIDEV_SHIFT; 563 /* default number of HDMI DAI's */ 564 if (!hdmi_num) 565 hdmi_num = 3; 566 } 567 568 dev_dbg(&pdev->dev, "sof_cs42l42_quirk = %lx\n", sof_cs42l42_quirk); 569 570 ssp_amp = (sof_cs42l42_quirk & SOF_CS42L42_SSP_AMP_MASK) >> 571 SOF_CS42L42_SSP_AMP_SHIFT; 572 573 ssp_codec = sof_cs42l42_quirk & SOF_CS42L42_SSP_CODEC_MASK; 574 575 /* compute number of dai links */ 576 sof_audio_card_cs42l42.num_links = 1 + dmic_be_num + hdmi_num; 577 578 if (sof_cs42l42_quirk & SOF_SPEAKER_AMP_PRESENT) 579 sof_audio_card_cs42l42.num_links++; 580 581 dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, ssp_amp, 582 dmic_be_num, hdmi_num); 583 if (!dai_links) 584 return -ENOMEM; 585 586 sof_audio_card_cs42l42.dai_link = dai_links; 587 588 INIT_LIST_HEAD(&ctx->hdmi_pcm_list); 589 590 sof_audio_card_cs42l42.dev = &pdev->dev; 591 592 /* set platform name for each dailink */ 593 ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_cs42l42, 594 mach->mach_params.platform); 595 if (ret) 596 return ret; 597 598 ctx->common_hdmi_codec_drv = mach->mach_params.common_hdmi_codec_drv; 599 600 snd_soc_card_set_drvdata(&sof_audio_card_cs42l42, ctx); 601 602 return devm_snd_soc_register_card(&pdev->dev, 603 &sof_audio_card_cs42l42); 604 } 605 606 static const struct platform_device_id board_ids[] = { 607 { 608 .name = "glk_cs4242_mx98357a", 609 .driver_data = (kernel_ulong_t)(SOF_CS42L42_SSP_CODEC(2) | 610 SOF_SPEAKER_AMP_PRESENT | 611 SOF_MAX98357A_SPEAKER_AMP_PRESENT | 612 SOF_CS42L42_SSP_AMP(1)) | 613 SOF_CS42L42_DAILINK(LINK_SPK, LINK_HP, LINK_DMIC, LINK_HDMI, LINK_NONE), 614 }, 615 { 616 .name = "jsl_cs4242_mx98360a", 617 .driver_data = (kernel_ulong_t)(SOF_CS42L42_SSP_CODEC(0) | 618 SOF_SPEAKER_AMP_PRESENT | 619 SOF_MAX98360A_SPEAKER_AMP_PRESENT | 620 SOF_CS42L42_SSP_AMP(1)) | 621 SOF_CS42L42_DAILINK(LINK_HP, LINK_DMIC, LINK_HDMI, LINK_SPK, LINK_NONE), 622 }, 623 { } 624 }; 625 MODULE_DEVICE_TABLE(platform, board_ids); 626 627 static struct platform_driver sof_audio = { 628 .probe = sof_audio_probe, 629 .driver = { 630 .name = "sof_cs42l42", 631 .pm = &snd_soc_pm_ops, 632 }, 633 .id_table = board_ids, 634 }; 635 module_platform_driver(sof_audio) 636 637 /* Module information */ 638 MODULE_DESCRIPTION("SOF Audio Machine driver for CS42L42"); 639 MODULE_AUTHOR("Brent Lu <brent.lu@intel.com>"); 640 MODULE_LICENSE("GPL"); 641 MODULE_IMPORT_NS(SND_SOC_INTEL_HDA_DSP_COMMON); 642 MODULE_IMPORT_NS(SND_SOC_INTEL_SOF_MAXIM_COMMON); 643