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 = PCI_DEVICE_ID_INTEL_SST_TNG,
  54         },
  55 #endif
  56 /*
  57  * Apollolake (Broxton-P)
  58  * the legacy HDAudio driver is used except on Up Squared (SOF) and
  59  * Chromebooks (SST), as well as devices based on the ES8336 codec
  60  */
  61 #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
  62         {
  63                 .flags = FLAG_SOF,
  64                 .device = PCI_DEVICE_ID_INTEL_HDA_APL,
  65                 .dmi_table = (const struct dmi_system_id []) {
  66                         {
  67                                 .ident = "Up Squared",
  68                                 .matches = {
  69                                         DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
  70                                         DMI_MATCH(DMI_BOARD_NAME, "UP-APL01"),
  71                                 }
  72                         },
  73                         {}
  74                 }
  75         },
  76         {
  77                 .flags = FLAG_SOF,
  78                 .device = PCI_DEVICE_ID_INTEL_HDA_APL,
  79                 .codec_hid =  &essx_83x6,
  80         },
  81 #endif
  82 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_APL)
  83         {
  84                 .flags = FLAG_SST,
  85                 .device = PCI_DEVICE_ID_INTEL_HDA_APL,
  86                 .dmi_table = (const struct dmi_system_id []) {
  87                         {
  88                                 .ident = "Google Chromebooks",
  89                                 .matches = {
  90                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
  91                                 }
  92                         },
  93                         {}
  94                 }
  95         },
  96 #endif
  97 /*
  98  * Skylake and Kabylake use legacy HDAudio driver except for Google
  99  * Chromebooks (SST)
 100  */
 101
 102 /* Sunrise Point-LP */
 103 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_SKL)
 104         {
 105                 .flags = FLAG_SST,
 106                 .device = PCI_DEVICE_ID_INTEL_HDA_SKL_LP,
 107                 .dmi_table = (const struct dmi_system_id []) {
 108                         {
 109                                 .ident = "Google Chromebooks",
 110                                 .matches = {
 111                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 112                                 }
 113                         },
 114                         {}
 115                 }
 116         },
 117         {
 118                 .flags = FLAG_SST | FLAG_SST_ONLY_IF_DMIC,
 119                 .device = PCI_DEVICE_ID_INTEL_HDA_SKL_LP,
 120         },
 121 #endif
 122 /* Kabylake-LP */
 123 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_KBL)
 124         {
 125                 .flags = FLAG_SST,
 126                 .device = PCI_DEVICE_ID_INTEL_HDA_KBL_LP,
 127                 .dmi_table = (const struct dmi_system_id []) {
 128                         {
 129                                 .ident = "Google Chromebooks",
 130                                 .matches = {
 131                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 132                                 }
 133                         },
 134                         {}
 135                 }
 136         },
 137         {
 138                 .flags = FLAG_SST | FLAG_SST_ONLY_IF_DMIC,
 139                 .device = PCI_DEVICE_ID_INTEL_HDA_KBL_LP,
 140         },
 141 #endif
 142
 143 /*
 144  * Geminilake uses legacy HDAudio driver except for Google
 145  * Chromebooks and devices based on the ES8336 codec
 146  */
 147 /* Geminilake */
 148 #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
 149         {
 150                 .flags = FLAG_SOF,
 151                 .device = PCI_DEVICE_ID_INTEL_HDA_GML,
 152                 .dmi_table = (const struct dmi_system_id []) {
 153                         {
 154                                 .ident = "Google Chromebooks",
 155                                 .matches = {
 156                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 157                                 }
 158                         },
 159                         {}
 160                 }
 161         },
 162         {
 163                 .flags = FLAG_SOF,
 164                 .device = PCI_DEVICE_ID_INTEL_HDA_GML,
 165                 .codec_hid =  &essx_83x6,
 166         },
 167 #endif
 168
 169 /*
 170  * CoffeeLake, CannonLake, CometLake, IceLake, TigerLake use legacy
 171  * HDAudio driver except for Google Chromebooks and when DMICs are
 172  * present. Two cases are required since Coreboot does not expose NHLT
 173  * tables.
 174  *
 175  * When the Chromebook quirk is not present, it's based on information
 176  * that no such device exists. When the quirk is present, it could be
 177  * either based on product information or a placeholder.
 178  */
 179
 180 /* Cannonlake */
 181 #if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
 182         {
 183                 .flags = FLAG_SOF,
 184                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_LP,
 185                 .dmi_table = (const struct dmi_system_id []) {
 186                         {
 187                                 .ident = "Google Chromebooks",
 188                                 .matches = {
 189                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 190                                 }
 191                         },
 192                         {
 193                                 .ident = "UP-WHL",
 194                                 .matches = {
 195                                         DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
 196                                 }
 197                         },
 198                         {}
 199                 }
 200         },
 201         {
 202                 .flags = FLAG_SOF,
 203                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_LP,
 204                 .codec_hid =  &essx_83x6,
 205         },
 206         {
 207                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 208                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_LP,
 209         },
 210 #endif
 211
 212 /* Coffelake */
 213 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
 214         {
 215                 .flags = FLAG_SOF,
 216                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_H,
 217                 .dmi_table = (const struct dmi_system_id []) {
 218                         {
 219                                 .ident = "Google Chromebooks",
 220                                 .matches = {
 221                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 222                                 }
 223                         },
 224                         {}
 225                 }
 226         },
 227         {
 228                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 229                 .device = PCI_DEVICE_ID_INTEL_HDA_CNL_H,
 230         },
 231 #endif
 232
 233 #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
 234 /* Cometlake-LP */
 235         {
 236                 .flags = FLAG_SOF,
 237                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_LP,
 238                 .dmi_table = (const struct dmi_system_id []) {
 239                         {
 240                                 .ident = "Google Chromebooks",
 241                                 .matches = {
 242                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 243                                 }
 244                         },
 245                         {
 246                                 .matches = {
 247                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 248                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "09C6")
 249                                 },
 250                         },
 251                         {
 252                                 /* early version of SKU 09C6 */
 253                                 .matches = {
 254                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 255                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0983")
 256                                 },
 257                         },
 258                         {}
 259                 }
 260         },
 261         {
 262                 .flags = FLAG_SOF,
 263                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_LP,
 264                 .codec_hid =  &essx_83x6,
 265         },
 266         {
 267                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 268                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_LP,
 269         },
 270 /* Cometlake-H */
 271         {
 272                 .flags = FLAG_SOF,
 273                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_H,
 274                 .dmi_table = (const struct dmi_system_id []) {
 275                         {
 276                                 .matches = {
 277                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 278                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "098F"),
 279                                 },
 280                         },
 281                         {
 282                                 .matches = {
 283                                         DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
 284                                         DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0990"),
 285                                 },
 286                         },
 287                         {}
 288                 }
 289         },
 290         {
 291                 .flags = FLAG_SOF,
 292                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_H,
 293                 .codec_hid =  &essx_83x6,
 294         },
 295         {
 296                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 297                 .device = PCI_DEVICE_ID_INTEL_HDA_CML_H,
 298         },
 299 #endif
 300
 301 /* Icelake */
 302 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
 303         {
 304                 .flags = FLAG_SOF,
 305                 .device = PCI_DEVICE_ID_INTEL_HDA_ICL_LP,
 306                 .dmi_table = (const struct dmi_system_id []) {
 307                         {
 308                                 .ident = "Google Chromebooks",
 309                                 .matches = {
 310                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 311                                 }
 312                         },
 313                         {}
 314                 }
 315         },
 316         {
 317                 .flags = FLAG_SOF,
 318                 .device = PCI_DEVICE_ID_INTEL_HDA_ICL_LP,
 319                 .codec_hid =  &essx_83x6,
 320         },
 321         {
 322                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 323                 .device = PCI_DEVICE_ID_INTEL_HDA_ICL_LP,
 324         },
 325 #endif
 326
 327 /* Jasper Lake */
 328 #if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
 329         {
 330                 .flags = FLAG_SOF,
 331                 .device = PCI_DEVICE_ID_INTEL_HDA_JSL_N,
 332                 .dmi_table = (const struct dmi_system_id []) {
 333                         {
 334                                 .ident = "Google Chromebooks",
 335                                 .matches = {
 336                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 337                                 }
 338                         },
 339                         {}
 340                 }
 341         },
 342         {
 343                 .flags = FLAG_SOF,
 344                 .device = PCI_DEVICE_ID_INTEL_HDA_JSL_N,
 345                 .codec_hid =  &essx_83x6,
 346         },
 347         {
 348                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
 349                 .device = PCI_DEVICE_ID_INTEL_HDA_JSL_N,
 350         },
 351 #endif
 352
 353 /* Tigerlake */
 354 #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
 355         {
 356                 .flags = FLAG_SOF,
 357                 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_LP,
 358                 .dmi_table = (const struct dmi_system_id []) {
 359                         {
 360                                 .ident = "Google Chromebooks",
 361                                 .matches = {
 362                                         DMI_MATCH(DMI_SYS_VENDOR, "Google"),
 363                                 }
 364                         },
 365                         {
 366                                 .ident = "UPX-TGL",
 367                                 .matches = {
 368                                         DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
 369                                 }
 370                         },
 371                         {}
 372                 }
 373         },
 374         {
 375                 .flags = FLAG_SOF,
 376                 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_LP,
 377                 .codec_hid =  &essx_83x6,
 378         },
 379         {
 380                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 381                 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_LP,
 382         },
 383         {
 384                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 385                 .device = PCI_DEVICE_ID_INTEL_HDA_TGL_H,
 386         },
 387 #endif
 388
 389 /* Elkhart Lake */
 390 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
 391         {
 392                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
 393                 .device = PCI_DEVICE_ID_INTEL_HDA_EHL_0,
 394         },
 395         {
 396                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
 397                 .device = PCI_DEVICE_ID_INTEL_HDA_EHL_3,
 398         },
 399 #endif
 400
 401 /* Alder Lake / Raptor Lake */
 402 #if IS_ENABLED(CONFIG_SND_SOC_SOF_ALDERLAKE)
 403         {
 404                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 405                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_S,
 406         },
 407         {
 408                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 409                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_S,
 410         },
 411         {
 412                 .flags = FLAG_SOF,
 413                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_P,
 414                 .codec_hid =  &essx_83x6,
 415         },
 416         {
 417                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 418                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_P,
 419         },
 420         {
 421                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 422                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_PX,
 423         },
 424         {
 425                 .flags = FLAG_SOF,
 426                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_PS,
 427                 .codec_hid =  &essx_83x6,
 428         },
 429         {
 430                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 431                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_PS,
 432         },
 433         {
 434                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 435                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_M,
 436         },
 437         {
 438                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 439                 .device = PCI_DEVICE_ID_INTEL_HDA_ADL_N,
 440         },
 441         {
 442                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 443                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_P_0,
 444         },
 445         {
 446                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 447                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_P_1,
 448         },
 449         {
 450                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 451                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_M,
 452         },
 453         {
 454                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 455                 .device = PCI_DEVICE_ID_INTEL_HDA_RPL_PX,
 456         },
 457 #endif
 458
 459 /* Meteor Lake */
 460 #if IS_ENABLED(CONFIG_SND_SOC_SOF_METEORLAKE)
 461         /* Meteorlake-P */
 462         {
 463                 .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
 464                 .device = 0x7e28,
 465         },
 466 #endif
 467
 468 };
 469
 470 static const struct config_entry *snd_intel_dsp_find_config
 471                 (struct pci_dev *pci, const struct config_entry *table, u32 len)
 472 {
 473         u16 device;
 474
 475         device = pci->device;
 476         for (; len > 0; len--, table++) {
 477                 if (table->device != device)
 478                         continue;
 479                 if (table->dmi_table && !dmi_check_system(table->dmi_table))
 480                         continue;
 481                 if (table->codec_hid) {
 482                         int i;
 483
 484                         for (i = 0; i < table->codec_hid->num_codecs; i++)
 485                                 if (acpi_dev_present(table->codec_hid->codecs[i], NULL, -1))
 486                                         break;
 487                         if (i == table->codec_hid->num_codecs)
 488                                 continue;
 489                 }
 490                 return table;
 491         }
 492         return NULL;
 493 }
 494
 495 static int snd_intel_dsp_check_dmic(struct pci_dev *pci)
 496 {
 497         struct nhlt_acpi_table *nhlt;
 498         int ret = 0;
 499
 500         nhlt = intel_nhlt_init(&pci->dev);
 501         if (nhlt) {
 502                 if (intel_nhlt_has_endpoint_type(nhlt, NHLT_LINK_DMIC))
 503                         ret = 1;
 504                 intel_nhlt_free(nhlt);
 505         }
 506         return ret;
 507 }
 508
 509 #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
 510 static int snd_intel_dsp_check_soundwire(struct pci_dev *pci)
 511 {
 512         struct sdw_intel_acpi_info info;
 513         acpi_handle handle;
 514         int ret;
 515
 516         handle = ACPI_HANDLE(&pci->dev);
 517
 518         ret = sdw_intel_acpi_scan(handle, &info);
 519         if (ret < 0)
 520                 return ret;
 521
 522         return info.link_mask;
 523 }
 524 #else
 525 static int snd_intel_dsp_check_soundwire(struct pci_dev *pci)
 526 {
 527         return 0;
 528 }
 529 #endif
 530
 531 int snd_intel_dsp_driver_probe(struct pci_dev *pci)
 532 {
 533         const struct config_entry *cfg;
 534
 535         /* Intel vendor only */
 536         if (pci->vendor != PCI_VENDOR_ID_INTEL)
 537                 return SND_INTEL_DSP_DRIVER_ANY;
 538
 539         /*
 540          * Legacy devices don't have a PCI-based DSP and use HDaudio
 541          * for HDMI/DP support, ignore kernel parameter
 542          */
 543         switch (pci->device) {
 544         case PCI_DEVICE_ID_INTEL_HDA_BDW:
 545         case PCI_DEVICE_ID_INTEL_HDA_HSW_0:
 546         case PCI_DEVICE_ID_INTEL_HDA_HSW_2:
 547         case PCI_DEVICE_ID_INTEL_HDA_HSW_3:
 548         case PCI_DEVICE_ID_INTEL_HDA_BYT:
 549         case PCI_DEVICE_ID_INTEL_HDA_BSW:
 550                 return SND_INTEL_DSP_DRIVER_ANY;
 551         }
 552
 553         if (dsp_driver > 0 && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST)
 554                 return dsp_driver;
 555
 556         /*
 557          * detect DSP by checking class/subclass/prog-id information
 558          * class=04 subclass 03 prog-if 00: no DSP, use legacy driver
 559          * class=04 subclass 01 prog-if 00: DSP is present
 560          *  (and may be required e.g. for DMIC or SSP support)
 561          * class=04 subclass 03 prog-if 80: use DSP or legacy mode
 562          */
 563         if (pci->class == 0x040300)
 564                 return SND_INTEL_DSP_DRIVER_LEGACY;
 565         if (pci->class != 0x040100 && pci->class != 0x040380) {
 566                 dev_err(&pci->dev, "Unknown PCI class/subclass/prog-if information (0x%06x) found, selecting HDAudio legacy driver\n", pci->class);
 567                 return SND_INTEL_DSP_DRIVER_LEGACY;
 568         }
 569
 570         dev_info(&pci->dev, "DSP detected with PCI class/subclass/prog-if info 0x%06x\n", pci->class);
 571
 572         /* find the configuration for the specific device */
 573         cfg = snd_intel_dsp_find_config(pci, config_table, ARRAY_SIZE(config_table));
 574         if (!cfg)
 575                 return SND_INTEL_DSP_DRIVER_ANY;
 576
 577         if (cfg->flags & FLAG_SOF) {
 578                 if (cfg->flags & FLAG_SOF_ONLY_IF_SOUNDWIRE &&
 579                     snd_intel_dsp_check_soundwire(pci) > 0) {
 580                         dev_info(&pci->dev, "SoundWire enabled on CannonLake+ platform, using SOF driver\n");
 581                         return SND_INTEL_DSP_DRIVER_SOF;
 582                 }
 583                 if (cfg->flags & FLAG_SOF_ONLY_IF_DMIC &&
 584                     snd_intel_dsp_check_dmic(pci)) {
 585                         dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SOF driver\n");
 586                         return SND_INTEL_DSP_DRIVER_SOF;
 587                 }
 588                 if (!(cfg->flags & FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE))
 589                         return SND_INTEL_DSP_DRIVER_SOF;
 590         }
 591
 592
 593         if (cfg->flags & FLAG_SST) {
 594                 if (cfg->flags & FLAG_SST_ONLY_IF_DMIC) {
 595                         if (snd_intel_dsp_check_dmic(pci)) {
 596                                 dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SST driver\n");
 597                                 return SND_INTEL_DSP_DRIVER_SST;
 598                         }
 599                 } else {
 600                         return SND_INTEL_DSP_DRIVER_SST;
 601                 }
 602         }
 603
 604         return SND_INTEL_DSP_DRIVER_LEGACY;
 605 }
 606 EXPORT_SYMBOL_GPL(snd_intel_dsp_driver_probe);
 607
 608 /* Should we default to SOF or SST for BYT/CHT ? */
 609 #if IS_ENABLED(CONFIG_SND_INTEL_BYT_PREFER_SOF) || \
 610     !IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI)
 611 #define FLAG_SST_OR_SOF_BYT     FLAG_SOF
 612 #else
 613 #define FLAG_SST_OR_SOF_BYT     FLAG_SST
 614 #endif
 615
 616 /*
 617  * configuration table
 618  * - the order of similar ACPI ID entries is important!
 619  * - the first successful match will win
 620  */
 621 static const struct config_entry acpi_config_table[] = {
 622 #if IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) || \
 623     IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
 624 /* BayTrail */
 625         {
 626                 .flags = FLAG_SST_OR_SOF_BYT,
 627                 .acpi_hid = "80860F28",
 628         },
 629 /* CherryTrail */
 630         {
 631                 .flags = FLAG_SST_OR_SOF_BYT,
 632                 .acpi_hid = "808622A8",
 633         },
 634 #endif
 635 /* Broadwell */
 636 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT)
 637         {
 638                 .flags = FLAG_SST,
 639                 .acpi_hid = "INT3438"
 640         },
 641 #endif
 642 #if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
 643         {
 644                 .flags = FLAG_SOF,
 645                 .acpi_hid = "INT3438"
 646         },
 647 #endif
 648 /* Haswell - not supported by SOF but added for consistency */
 649 #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT)
 650         {
 651                 .flags = FLAG_SST,
 652                 .acpi_hid = "INT33C8"
 653         },
 654 #endif
 655 };
 656
 657 static const struct config_entry *snd_intel_acpi_dsp_find_config(const u8 acpi_hid[ACPI_ID_LEN],
 658                                                                  const struct config_entry *table,
 659                                                                  u32 len)
 660 {
 661         for (; len > 0; len--, table++) {
 662                 if (memcmp(table->acpi_hid, acpi_hid, ACPI_ID_LEN))
 663                         continue;
 664                 if (table->dmi_table && !dmi_check_system(table->dmi_table))
 665                         continue;
 666                 return table;
 667         }
 668         return NULL;
 669 }
 670
 671 int snd_intel_acpi_dsp_driver_probe(struct device *dev, const u8 acpi_hid[ACPI_ID_LEN])
 672 {
 673         const struct config_entry *cfg;
 674
 675         if (dsp_driver > SND_INTEL_DSP_DRIVER_LEGACY && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST)
 676                 return dsp_driver;
 677
 678         if (dsp_driver == SND_INTEL_DSP_DRIVER_LEGACY) {
 679                 dev_warn(dev, "dsp_driver parameter %d not supported, using automatic detection\n",
 680                          SND_INTEL_DSP_DRIVER_LEGACY);
 681         }
 682
 683         /* find the configuration for the specific device */
 684         cfg = snd_intel_acpi_dsp_find_config(acpi_hid,  acpi_config_table,
 685                                              ARRAY_SIZE(acpi_config_table));
 686         if (!cfg)
 687                 return SND_INTEL_DSP_DRIVER_ANY;
 688
 689         if (cfg->flags & FLAG_SST)
 690                 return SND_INTEL_DSP_DRIVER_SST;
 691
 692         if (cfg->flags & FLAG_SOF)
 693                 return SND_INTEL_DSP_DRIVER_SOF;
 694
 695         return SND_INTEL_DSP_DRIVER_SST;
 696 }
 697 EXPORT_SYMBOL_GPL(snd_intel_acpi_dsp_driver_probe);
 698
 699 MODULE_LICENSE("GPL v2");
 700 MODULE_DESCRIPTION("Intel DSP config driver");
 701 MODULE_IMPORT_NS(SND_INTEL_SOUNDWIRE_ACPI);