sound/hda/intel-dsp-config.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 // Copyright (c) 2019 Jaroslav Kysela <perex@perex.cz>
   3
   4 #include <linux/acpi.h>
   5 #include <linux/bits.h>
   6 #include <linux/dmi.h>
   7 #include <linux/module.h>
   8 #include <linux/pci.h>
   9 #include <linux/soundwire/sdw.h>
  10 #include <linux/soundwire/sdw_intel.h>
  11 #include <sound/core.h>
  12 #include <sound/intel-dsp-config.h>
  13 #include <sound/intel-nhlt.h>
  14 #include <sound/soc-acpi.h>
  15
  16 static int dsp_driver;
  17
  18 module_param(dsp_driver, int, 0444);
  19 MODULE_PARM_DESC(dsp_driver, "Force the DSP driver for Intel DSP (0=auto, 1=legacy, 2=SST, 3=SOF)");
  20
  21 #define FLAG_SST                        BIT(0)
  22 #define FLAG_SOF                        BIT(1)
  23 #define FLAG_SST_ONLY_IF_DMIC           BIT(15)
  24 #define FLAG_SOF_ONLY_IF_DMIC           BIT(16)
  25 #define FLAG_SOF_ONLY_IF_SOUNDWIRE      BIT(17)
  26
  27 #define FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE (FLAG_SOF_ONLY_IF_DMIC | \
  28                                             FLAG_SOF_ONLY_IF_SOUNDWIRE)
  29
  30 struct config_entry {
  31         u32 flags;
  32         u16 device;
  33         u8 acpi_hid[ACPI_ID_LEN];
  34         const struct dmi_system_id *dmi_table;
  35         const struct snd_soc_acpi_codecs *codec_hid;
  36 };
  37
  38 static const struct snd_soc_acpi_codecs __maybe_unused essx_83x6 = {
  39         .num_codecs = 3,
  40         .codecs = { "ESSX8316", "ESSX8326", "ESSX8336"},
  41 };
  42
  43 /*
  44  * configuration table
  45  * - the order of similar PCI ID entries is important!
  46  * - the first successful match will win
  47  */
  48 static const struct config_entry config_table[] = {
  49 /* Merrifield */
  50 #if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
  51         {
  52                 .flags = FLAG_SOF,
  53                 .device = 0x119a,
  54         },
  55 #endif
  56 /* Broxton-T */
  57 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
  58         {
  59                 .flags = FLAG_SOF,
  60                 .device = 0x1a98,
  61         },
  62 #endif
  63 /*
  64  * Apollolake (Broxton-P)
  65  * the legacy HDAudio driver is used except on Up Squared (SOF) and
  66  * Chromebooks (SST), as well as devices based on the ES8336 codec
  67  */
  68 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
  69         {
  70                 .flags = FLAG_SOF,
  71                 .device = 0x5a98,
  72                 .dmi_table = (const struct dmi_system_id []) {
  73                         {
  74                                 .ident = "Up Squared",
  75                                 .matches = {
  76                                         DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
  77                                         DMI_MATCH(DMI_BOARD_NAME, "UP-APL01"),
  78                                 }
  79                         },
  80                         {}
  81                 }
  82         },
  83         {
  84                 .flags = FLAG_SOF,
  85                 .device = 0x5a98,
  86                 .codec_hid =  &essx_83x6,
  87         },
  88 #endif
  89 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_APL)
  90         {
  91                 .flags = FLAG_SST,
  92                 .device = 0x5a98,
  93                 .dmi_table = (const struct dmi_system_id []) {
  94                         {
  95                                 .ident = "Google Chromebooks",
  96                                 .matches = {
  97                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
  98                                 }
  99                         },
 100                         {}
 101                 }
 102         },
 103 #endif
 104 /*
 105  * Skylake and Kabylake use legacy HDAudio driver except for Google
 106  * Chromebooks (SST)
 107  */
 108
 109 /* Sunrise Point-LP */
 110 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_SKL)
 111         {
 112                 .flags = FLAG_SST,
 113                 .device = 0x9d70,
 114                 .dmi_table = (const struct dmi_system_id []) {
 115                         {
 116                                 .ident = "Google Chromebooks",
 117                                 .matches = {
 118                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 119                                 }
 120                         },
 121                         {}
 122                 }
 123         },
 124         {
 125                 .flags = FLAG_SST | FLAG_SST_ONLY_IF_DMIC,
 126                 .device = 0x9d70,
 127         },
 128 #endif
 129 /* Kabylake-LP */
 130 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_KBL)
 131         {
 132                 .flags = FLAG_SST,
 133                 .device = 0x9d71,
 134                 .dmi_table = (const struct dmi_system_id []) {
 135                         {
 136                                 .ident = "Google Chromebooks",
 137                                 .matches = {
 138                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 139                                 }
 140                         },
 141                         {}
 142                 }
 143         },
 144         {
 145                 .flags = FLAG_SST | FLAG_SST_ONLY_IF_DMIC,
 146                 .device = 0x9d71,
 147         },
 148 #endif
 149
 150 /*
 151  * Geminilake uses legacy HDAudio driver except for Google
 152  * Chromebooks and devices based on the ES8336 codec
 153  */
 154 /* Geminilake */
 155 #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
 156         {
 157                 .flags = FLAG_SOF,
 158                 .device = 0x3198,
 159                 .dmi_table = (const struct dmi_system_id []) {
 160                         {
 161                                 .ident = "Google Chromebooks",
 162                                 .matches = {
 163                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 164                                 }
 165                         },
 166                         {}
 167                 }
 168         },
 169         {
 170                 .flags = FLAG_SOF,
 171                 .device = 0x3198,
 172                 .codec_hid =  &essx_83x6,
 173         },
 174 #endif
 175
 176 /*
 177  * CoffeeLake, CannonLake, CometLake, IceLake, TigerLake use legacy
 178  * HDAudio driver except for Google Chromebooks and when DMICs are
 179  * present. Two cases are required since Coreboot does not expose NHLT
 180  * tables.
 181  *
 182  * When the Chromebook quirk is not present, it's based on information
 183  * that no such device exists. When the quirk is present, it could be
 184  * either based on product information or a placeholder.
 185  */
 186
 187 /* Cannonlake */
 188 #if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
 189         {
 190                 .flags = FLAG_SOF,
 191                 .device = 0x9dc8,
 192                 .dmi_table = (const struct dmi_system_id []) {
 193                         {
 194                                 .ident = "Google Chromebooks",
 195                                 .matches = {
 196                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 197                                 }
 198                         },
 199                         {}
 200                 }
 201         },
 202         {
 203                 .flags = FLAG_SOF,
 204                 .device = 0x09dc8,
 205                 .codec_hid =  &essx_83x6,
 206         },
 207         {
 208                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 209                 .device = 0x9dc8,
 210         },
 211 #endif
 212
 213 /* Coffelake */
 214 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
 215         {
 216                 .flags = FLAG_SOF,
 217                 .device = 0xa348,
 218                 .dmi_table = (const struct dmi_system_id []) {
 219                         {
 220                                 .ident = "Google Chromebooks",
 221                                 .matches = {
 222                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 223                                 }
 224                         },
 225                         {}
 226                 }
 227         },
 228         {
 229                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 230                 .device = 0xa348,
 231         },
 232 #endif
 233
 234 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
 235 /* Cometlake-LP */
 236         {
 237                 .flags = FLAG_SOF,
 238                 .device = 0x02c8,
 239                 .dmi_table = (const struct dmi_system_id []) {
 240                         {
 241                                 .ident = "Google Chromebooks",
 242                                 .matches = {
 243                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 244                                 }
 245                         },
 246                         {
 247                                 .matches = {
 248                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 249                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "09C6")
 250                                 },
 251                         },
 252                         {
 253                                 /* early version of SKU 09C6 */
 254                                 .matches = {
 255                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 256                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0983")
 257                                 },
 258                         },
 259                         {}
 260                 }
 261         },
 262         {
 263                 .flags = FLAG_SOF,
 264                 .device = 0x02c8,
 265                 .codec_hid =  &essx_83x6,
 266         },
 267         {
 268                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 269                 .device = 0x02c8,
 270         },
 271 /* Cometlake-H */
 272         {
 273                 .flags = FLAG_SOF,
 274                 .device = 0x06c8,
 275                 .dmi_table = (const struct dmi_system_id []) {
 276                         {
 277                                 .matches = {
 278                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 279                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "098F"),
 280                                 },
 281                         },
 282                         {
 283                                 .matches = {
 284                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 285                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0990"),
 286                                 },
 287                         },
 288                         {}
 289                 }
 290         },
 291         {
 292                 .flags = FLAG_SOF,
 293                 .device = 0x06c8,
 294                 .codec_hid =  &essx_83x6,
 295         },
 296         {
 297                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 298                 .device = 0x06c8,
 299         },
 300 #endif
 301
 302 /* Icelake */
 303 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
 304         {
 305                 .flags = FLAG_SOF,
 306                 .device = 0x34c8,
 307                 .dmi_table = (const struct dmi_system_id []) {
 308                         {
 309                                 .ident = "Google Chromebooks",
 310                                 .matches = {
 311                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 312                                 }
 313                         },
 314                         {}
 315                 }
 316         },
 317         {
 318                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 319                 .device = 0x34c8,
 320         },
 321 #endif
 322
 323 /* Jasper Lake */
 324 #if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
 325         {
 326                 .flags = FLAG_SOF,
 327                 .device = 0x4dc8,
 328                 .dmi_table = (const struct dmi_system_id []) {
 329                         {
 330                                 .ident = "Google Chromebooks",
 331                                 .matches = {
 332                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 333                                 }
 334                         },
 335                         {}
 336                 }
 337         },
 338         {
 339                 .flags = FLAG_SOF,
 340                 .device = 0x4dc8,
 341                 .codec_hid =  &essx_83x6,
 342         },
 343         {
 344                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
 345                 .device = 0x4dc8,
 346         },
 347 #endif
 348
 349 /* Tigerlake */
 350 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
 351         {
 352                 .flags = FLAG_SOF,
 353                 .device = 0xa0c8,
 354                 .dmi_table = (const struct dmi_system_id []) {
 355                         {
 356                                 .ident = "Google Chromebooks",
 357                                 .matches = {
 358                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 359                                 }
 360                         },
 361                         {}
 362                 }
 363         },
 364         {
 365                 .flags = FLAG_SOF,
 366                 .device = 0xa0c8,
 367                 .codec_hid =  &essx_83x6,
 368         },
 369         {
 370                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 371                 .device = 0xa0c8,
 372         },
 373         {
 374                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 375                 .device = 0x43c8,
 376         },
 377 #endif
 378
 379 /* Elkhart Lake */
 380 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
 381         {
 382                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
 383                 .device = 0x4b55,
 384         },
 385         {
 386                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
 387                 .device = 0x4b58,
 388         },
 389 #endif
 390
 391 /* Alder Lake */
 392 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ALDERLAKE)
 393         {
 394                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 395                 .device = 0x7ad0,
 396         },
 397         {
 398                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 399                 .device = 0x51c8,
 400         },
 401         {
 402                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 403                 .device = 0x51cc,
 404         },
 405         {
 406                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 407                 .device = 0x51cd,
 408         },
 409         {
 410                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 411                 .device = 0x54c8,
 412         },
 413 #endif
 414
 415 };
 416
 417 static const struct config_entry *snd_intel_dsp_find_config
 418                 (struct pci_dev *pci, const struct config_entry *table, u32 len)
 419 {
 420         u16 device;
 421
 422         device = pci->device;
 423         for (; len > 0; len--, table++) {
 424                 if (table->device != device)
 425                         continue;
 426                 if (table->dmi_table && !dmi_check_system(table->dmi_table))
 427                         continue;
 428                 if (table->codec_hid) {
 429                         int i;
 430
 431                         for (i = 0; i < table->codec_hid->num_codecs; i++)
 432                                 if (acpi_dev_present(table->codec_hid->codecs[i], NULL, -1))
 433                                         break;
 434                         if (i == table->codec_hid->num_codecs)
 435                                 continue;
 436                 }
 437                 return table;
 438         }
 439         return NULL;
 440 }
 441
 442 static int snd_intel_dsp_check_dmic(struct pci_dev *pci)
 443 {
 444         struct nhlt_acpi_table *nhlt;
 445         int ret = 0;
 446
 447         nhlt = intel_nhlt_init(&pci->dev);
 448         if (nhlt) {
 449                 if (intel_nhlt_has_endpoint_type(nhlt, NHLT_LINK_DMIC))
 450                         ret = 1;
 451                 intel_nhlt_free(nhlt);
 452         }
 453         return ret;
 454 }
 455
 456 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
 457 static int snd_intel_dsp_check_soundwire(struct pci_dev *pci)
 458 {
 459         struct sdw_intel_acpi_info info;
 460         acpi_handle handle;
 461         int ret;
 462
 463         handle = ACPI_HANDLE(&pci->dev);
 464
 465         ret = sdw_intel_acpi_scan(handle, &info);
 466         if (ret < 0)
 467                 return ret;
 468
 469         return info.link_mask;
 470 }
 471 #else
 472 static int snd_intel_dsp_check_soundwire(struct pci_dev *pci)
 473 {
 474         return 0;
 475 }
 476 #endif
 477
 478 int snd_intel_dsp_driver_probe(struct pci_dev *pci)
 479 {
 480         const struct config_entry *cfg;
 481
 482         /* Intel vendor only */
 483         if (pci->vendor != 0x8086)
 484                 return SND_INTEL_DSP_DRIVER_ANY;
 485
 486         /*
 487          * Legacy devices don't have a PCI-based DSP and use HDaudio
 488          * for HDMI/DP support, ignore kernel parameter
 489          */
 490         switch (pci->device) {
 491         case 0x160c: /* Broadwell */
 492         case 0x0a0c: /* Haswell */
 493         case 0x0c0c:
 494         case 0x0d0c:
 495         case 0x0f04: /* Baytrail */
 496         case 0x2284: /* Braswell */
 497                 return SND_INTEL_DSP_DRIVER_ANY;
 498         }
 499
 500         if (dsp_driver > 0 && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST)
 501                 return dsp_driver;
 502
 503         /*
 504          * detect DSP by checking class/subclass/prog-id information
 505          * class=04 subclass 03 prog-if 00: no DSP, use legacy driver
 506          * class=04 subclass 01 prog-if 00: DSP is present
 507          *  (and may be required e.g. for DMIC or SSP support)
 508          * class=04 subclass 03 prog-if 80: use DSP or legacy mode
 509          */
 510         if (pci->class == 0x040300)
 511                 return SND_INTEL_DSP_DRIVER_LEGACY;
 512         if (pci->class != 0x040100 && pci->class != 0x040380) {
 513                 dev_err(&pci->dev, "Unknown PCI class/subclass/prog-if information (0x%06x) found, selecting HDAudio legacy driver\n", pci->class);
 514                 return SND_INTEL_DSP_DRIVER_LEGACY;
 515         }
 516
 517         dev_info(&pci->dev, "DSP detected with PCI class/subclass/prog-if info 0x%06x\n", pci->class);
 518
 519         /* find the configuration for the specific device */
 520         cfg = snd_intel_dsp_find_config(pci, config_table, ARRAY_SIZE(config_table));
 521         if (!cfg)
 522                 return SND_INTEL_DSP_DRIVER_ANY;
 523
 524         if (cfg->flags & FLAG_SOF) {
 525                 if (cfg->flags & FLAG_SOF_ONLY_IF_SOUNDWIRE &&
 526                     snd_intel_dsp_check_soundwire(pci) > 0) {
 527                         dev_info(&pci->dev, "SoundWire enabled on CannonLake+ platform, using SOF driver\n");
 528                         return SND_INTEL_DSP_DRIVER_SOF;
 529                 }
 530                 if (cfg->flags & FLAG_SOF_ONLY_IF_DMIC &&
 531                     snd_intel_dsp_check_dmic(pci)) {
 532                         dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SOF driver\n");
 533                         return SND_INTEL_DSP_DRIVER_SOF;
 534                 }
 535                 if (!(cfg->flags & FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE))
 536                         return SND_INTEL_DSP_DRIVER_SOF;
 537         }
 538
 539
 540         if (cfg->flags & FLAG_SST) {
 541                 if (cfg->flags & FLAG_SST_ONLY_IF_DMIC) {
 542                         if (snd_intel_dsp_check_dmic(pci)) {
 543                                 dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SST driver\n");
 544                                 return SND_INTEL_DSP_DRIVER_SST;
 545                         }
 546                 } else {
 547                         return SND_INTEL_DSP_DRIVER_SST;
 548                 }
 549         }
 550
 551         return SND_INTEL_DSP_DRIVER_LEGACY;
 552 }
 553 EXPORT_SYMBOL_GPL(snd_intel_dsp_driver_probe);
 554
 555 /* Should we default to SOF or SST for BYT/CHT ? */
 556 #if IS_ENABLED(CONFIG_SND_INTEL_BYT_PREFER_SOF) || \
 557     !IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI)
 558 #define FLAG_SST_OR_SOF_BYT     FLAG_SOF
 559 #else
 560 #define FLAG_SST_OR_SOF_BYT     FLAG_SST
 561 #endif
 562
 563 /*
 564  * configuration table
 565  * - the order of similar ACPI ID entries is important!
 566  * - the first successful match will win
 567  */
 568 static const struct config_entry acpi_config_table[] = {
 569 #if IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) || \
 570     IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
 571 /* BayTrail */
 572         {
 573                 .flags = FLAG_SST_OR_SOF_BYT,
 574                 .acpi_hid = "80860F28",
 575         },
 576 /* CherryTrail */
 577         {
 578                 .flags = FLAG_SST_OR_SOF_BYT,
 579                 .acpi_hid = "808622A8",
 580         },
 581 #endif
 582 /* Broadwell */
 583 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT)
 584         {
 585                 .flags = FLAG_SST,
 586                 .acpi_hid = "INT3438"
 587         },
 588 #endif
 589 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
 590         {
 591                 .flags = FLAG_SOF,
 592                 .acpi_hid = "INT3438"
 593         },
 594 #endif
 595 /* Haswell - not supported by SOF but added for consistency */
 596 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT)
 597         {
 598                 .flags = FLAG_SST,
 599                 .acpi_hid = "INT33C8"
 600         },
 601 #endif
 602 };
 603
 604 static const struct config_entry *snd_intel_acpi_dsp_find_config(const u8 acpi_hid[ACPI_ID_LEN],
 605                                                                  const struct config_entry *table,
 606                                                                  u32 len)
 607 {
 608         for (; len > 0; len--, table++) {
 609                 if (memcmp(table->acpi_hid, acpi_hid, ACPI_ID_LEN))
 610                         continue;
 611                 if (table->dmi_table && !dmi_check_system(table->dmi_table))
 612                         continue;
 613                 return table;
 614         }
 615         return NULL;
 616 }
 617
 618 int snd_intel_acpi_dsp_driver_probe(struct device *dev, const u8 acpi_hid[ACPI_ID_LEN])
 619 {
 620         const struct config_entry *cfg;
 621
 622         if (dsp_driver > SND_INTEL_DSP_DRIVER_LEGACY && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST)
 623                 return dsp_driver;
 624
 625         if (dsp_driver == SND_INTEL_DSP_DRIVER_LEGACY) {
 626                 dev_warn(dev, "dsp_driver parameter %d not supported, using automatic detection\n",
 627                          SND_INTEL_DSP_DRIVER_LEGACY);
 628         }
 629
 630         /* find the configuration for the specific device */
 631         cfg = snd_intel_acpi_dsp_find_config(acpi_hid,  acpi_config_table,
 632                                              ARRAY_SIZE(acpi_config_table));
 633         if (!cfg)
 634                 return SND_INTEL_DSP_DRIVER_ANY;
 635
 636         if (cfg->flags & FLAG_SST)
 637                 return SND_INTEL_DSP_DRIVER_SST;
 638
 639         if (cfg->flags & FLAG_SOF)
 640                 return SND_INTEL_DSP_DRIVER_SOF;
 641
 642         return SND_INTEL_DSP_DRIVER_SST;
 643 }
 644 EXPORT_SYMBOL_GPL(snd_intel_acpi_dsp_driver_probe);
 645
 646 MODULE_LICENSE("GPL v2");
 647 MODULE_DESCRIPTION("Intel DSP config driver");
 648 MODULE_IMPORT_NS(SND_INTEL_SOUNDWIRE_ACPI);