123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731 |
- // SPDX-License-Identifier: GPL-2.0
- // Copyright (c) 2019 Jaroslav Kysela <[email protected]>
- #include <linux/acpi.h>
- #include <linux/bits.h>
- #include <linux/dmi.h>
- #include <linux/module.h>
- #include <linux/pci.h>
- #include <linux/soundwire/sdw.h>
- #include <linux/soundwire/sdw_intel.h>
- #include <sound/core.h>
- #include <sound/intel-dsp-config.h>
- #include <sound/intel-nhlt.h>
- #include <sound/soc-acpi.h>
- static int dsp_driver;
- module_param(dsp_driver, int, 0444);
- MODULE_PARM_DESC(dsp_driver, "Force the DSP driver for Intel DSP (0=auto, 1=legacy, 2=SST, 3=SOF)");
- #define FLAG_SST BIT(0)
- #define FLAG_SOF BIT(1)
- #define FLAG_SST_ONLY_IF_DMIC BIT(15)
- #define FLAG_SOF_ONLY_IF_DMIC BIT(16)
- #define FLAG_SOF_ONLY_IF_SOUNDWIRE BIT(17)
- #define FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE (FLAG_SOF_ONLY_IF_DMIC | \
- FLAG_SOF_ONLY_IF_SOUNDWIRE)
- struct config_entry {
- u32 flags;
- u16 device;
- u8 acpi_hid[ACPI_ID_LEN];
- const struct dmi_system_id *dmi_table;
- const struct snd_soc_acpi_codecs *codec_hid;
- };
- static const struct snd_soc_acpi_codecs __maybe_unused essx_83x6 = {
- .num_codecs = 3,
- .codecs = { "ESSX8316", "ESSX8326", "ESSX8336"},
- };
- /*
- * configuration table
- * - the order of similar PCI ID entries is important!
- * - the first successful match will win
- */
- static const struct config_entry config_table[] = {
- /* Merrifield */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
- {
- .flags = FLAG_SOF,
- .device = 0x119a,
- },
- #endif
- /* Broxton-T */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
- {
- .flags = FLAG_SOF,
- .device = 0x1a98,
- },
- #endif
- /*
- * Apollolake (Broxton-P)
- * the legacy HDAudio driver is used except on Up Squared (SOF) and
- * Chromebooks (SST), as well as devices based on the ES8336 codec
- */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_APOLLOLAKE)
- {
- .flags = FLAG_SOF,
- .device = 0x5a98,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Up Squared",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
- DMI_MATCH(DMI_BOARD_NAME, "UP-APL01"),
- }
- },
- {}
- }
- },
- {
- .flags = FLAG_SOF,
- .device = 0x5a98,
- .codec_hid = &essx_83x6,
- },
- #endif
- #if IS_ENABLED(CONFIG_SND_SOC_INTEL_APL)
- {
- .flags = FLAG_SST,
- .device = 0x5a98,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {}
- }
- },
- #endif
- /*
- * Skylake and Kabylake use legacy HDAudio driver except for Google
- * Chromebooks (SST)
- */
- /* Sunrise Point-LP */
- #if IS_ENABLED(CONFIG_SND_SOC_INTEL_SKL)
- {
- .flags = FLAG_SST,
- .device = 0x9d70,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {}
- }
- },
- {
- .flags = FLAG_SST | FLAG_SST_ONLY_IF_DMIC,
- .device = 0x9d70,
- },
- #endif
- /* Kabylake-LP */
- #if IS_ENABLED(CONFIG_SND_SOC_INTEL_KBL)
- {
- .flags = FLAG_SST,
- .device = 0x9d71,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {}
- }
- },
- {
- .flags = FLAG_SST | FLAG_SST_ONLY_IF_DMIC,
- .device = 0x9d71,
- },
- #endif
- /*
- * Geminilake uses legacy HDAudio driver except for Google
- * Chromebooks and devices based on the ES8336 codec
- */
- /* Geminilake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_GEMINILAKE)
- {
- .flags = FLAG_SOF,
- .device = 0x3198,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {}
- }
- },
- {
- .flags = FLAG_SOF,
- .device = 0x3198,
- .codec_hid = &essx_83x6,
- },
- #endif
- /*
- * CoffeeLake, CannonLake, CometLake, IceLake, TigerLake use legacy
- * HDAudio driver except for Google Chromebooks and when DMICs are
- * present. Two cases are required since Coreboot does not expose NHLT
- * tables.
- *
- * When the Chromebook quirk is not present, it's based on information
- * that no such device exists. When the quirk is present, it could be
- * either based on product information or a placeholder.
- */
- /* Cannonlake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_CANNONLAKE)
- {
- .flags = FLAG_SOF,
- .device = 0x9dc8,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {
- .ident = "UP-WHL",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
- }
- },
- {}
- }
- },
- {
- .flags = FLAG_SOF,
- .device = 0x09dc8,
- .codec_hid = &essx_83x6,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x9dc8,
- },
- #endif
- /* Coffelake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_COFFEELAKE)
- {
- .flags = FLAG_SOF,
- .device = 0xa348,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {}
- }
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0xa348,
- },
- #endif
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_COMETLAKE)
- /* Cometlake-LP */
- {
- .flags = FLAG_SOF,
- .device = 0x02c8,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
- DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "09C6")
- },
- },
- {
- /* early version of SKU 09C6 */
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
- DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0983")
- },
- },
- {}
- }
- },
- {
- .flags = FLAG_SOF,
- .device = 0x02c8,
- .codec_hid = &essx_83x6,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x02c8,
- },
- /* Cometlake-H */
- {
- .flags = FLAG_SOF,
- .device = 0x06c8,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
- DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "098F"),
- },
- },
- {
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"),
- DMI_EXACT_MATCH(DMI_PRODUCT_SKU, "0990"),
- },
- },
- {}
- }
- },
- {
- .flags = FLAG_SOF,
- .device = 0x06c8,
- .codec_hid = &essx_83x6,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x06c8,
- },
- #endif
- /* Icelake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_ICELAKE)
- {
- .flags = FLAG_SOF,
- .device = 0x34c8,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {}
- }
- },
- {
- .flags = FLAG_SOF,
- .device = 0x34c8,
- .codec_hid = &essx_83x6,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x34c8,
- },
- #endif
- /* Jasper Lake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_JASPERLAKE)
- {
- .flags = FLAG_SOF,
- .device = 0x4dc8,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {
- .ident = "Google firmware",
- .matches = {
- DMI_MATCH(DMI_BIOS_VERSION, "Google"),
- }
- },
- {}
- }
- },
- {
- .flags = FLAG_SOF,
- .device = 0x4dc8,
- .codec_hid = &essx_83x6,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
- .device = 0x4dc8,
- },
- #endif
- /* Tigerlake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_TIGERLAKE)
- {
- .flags = FLAG_SOF,
- .device = 0xa0c8,
- .dmi_table = (const struct dmi_system_id []) {
- {
- .ident = "Google Chromebooks",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "Google"),
- }
- },
- {
- .ident = "UPX-TGL",
- .matches = {
- DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
- }
- },
- {}
- }
- },
- {
- .flags = FLAG_SOF,
- .device = 0xa0c8,
- .codec_hid = &essx_83x6,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0xa0c8,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x43c8,
- },
- #endif
- /* Elkhart Lake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_ELKHARTLAKE)
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
- .device = 0x4b55,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC,
- .device = 0x4b58,
- },
- #endif
- /* Alder Lake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_ALDERLAKE)
- /* Alderlake-S */
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x7ad0,
- },
- /* RaptorLake-S */
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x7a50,
- },
- /* Alderlake-P */
- {
- .flags = FLAG_SOF,
- .device = 0x51c8,
- .codec_hid = &essx_83x6,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x51c8,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x51cd,
- },
- /* Alderlake-PS */
- {
- .flags = FLAG_SOF,
- .device = 0x51c9,
- .codec_hid = &essx_83x6,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x51c9,
- },
- /* Alderlake-M */
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x51cc,
- },
- /* Alderlake-N */
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x54c8,
- },
- /* RaptorLake-P */
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x51ca,
- },
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x51cb,
- },
- /* RaptorLake-M */
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x51ce,
- },
- /* RaptorLake-PX */
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x51cf,
- },
- #endif
- /* Meteor Lake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_METEORLAKE)
- /* Meteorlake-P */
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = 0x7e28,
- },
- #endif
- /* Lunar Lake */
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_LUNARLAKE)
- /* Lunarlake-P */
- {
- .flags = FLAG_SOF | FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE,
- .device = PCI_DEVICE_ID_INTEL_HDA_LNL_P,
- },
- #endif
- };
- static const struct config_entry *snd_intel_dsp_find_config
- (struct pci_dev *pci, const struct config_entry *table, u32 len)
- {
- u16 device;
- device = pci->device;
- for (; len > 0; len--, table++) {
- if (table->device != device)
- continue;
- if (table->dmi_table && !dmi_check_system(table->dmi_table))
- continue;
- if (table->codec_hid) {
- int i;
- for (i = 0; i < table->codec_hid->num_codecs; i++)
- if (acpi_dev_present(table->codec_hid->codecs[i], NULL, -1))
- break;
- if (i == table->codec_hid->num_codecs)
- continue;
- }
- return table;
- }
- return NULL;
- }
- static int snd_intel_dsp_check_dmic(struct pci_dev *pci)
- {
- struct nhlt_acpi_table *nhlt;
- int ret = 0;
- nhlt = intel_nhlt_init(&pci->dev);
- if (nhlt) {
- if (intel_nhlt_has_endpoint_type(nhlt, NHLT_LINK_DMIC))
- ret = 1;
- intel_nhlt_free(nhlt);
- }
- return ret;
- }
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_INTEL_SOUNDWIRE)
- static int snd_intel_dsp_check_soundwire(struct pci_dev *pci)
- {
- struct sdw_intel_acpi_info info;
- acpi_handle handle;
- int ret;
- handle = ACPI_HANDLE(&pci->dev);
- ret = sdw_intel_acpi_scan(handle, &info);
- if (ret < 0)
- return ret;
- return info.link_mask;
- }
- #else
- static int snd_intel_dsp_check_soundwire(struct pci_dev *pci)
- {
- return 0;
- }
- #endif
- int snd_intel_dsp_driver_probe(struct pci_dev *pci)
- {
- const struct config_entry *cfg;
- /* Intel vendor only */
- if (pci->vendor != 0x8086)
- return SND_INTEL_DSP_DRIVER_ANY;
- /*
- * Legacy devices don't have a PCI-based DSP and use HDaudio
- * for HDMI/DP support, ignore kernel parameter
- */
- switch (pci->device) {
- case 0x160c: /* Broadwell */
- case 0x0a0c: /* Haswell */
- case 0x0c0c:
- case 0x0d0c:
- case 0x0f04: /* Baytrail */
- case 0x2284: /* Braswell */
- return SND_INTEL_DSP_DRIVER_ANY;
- }
- if (dsp_driver > 0 && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST)
- return dsp_driver;
- /*
- * detect DSP by checking class/subclass/prog-id information
- * class=04 subclass 03 prog-if 00: no DSP, use legacy driver
- * class=04 subclass 01 prog-if 00: DSP is present
- * (and may be required e.g. for DMIC or SSP support)
- * class=04 subclass 03 prog-if 80: use DSP or legacy mode
- */
- if (pci->class == 0x040300)
- return SND_INTEL_DSP_DRIVER_LEGACY;
- if (pci->class != 0x040100 && pci->class != 0x040380) {
- dev_err(&pci->dev, "Unknown PCI class/subclass/prog-if information (0x%06x) found, selecting HDAudio legacy driver\n", pci->class);
- return SND_INTEL_DSP_DRIVER_LEGACY;
- }
- dev_info(&pci->dev, "DSP detected with PCI class/subclass/prog-if info 0x%06x\n", pci->class);
- /* find the configuration for the specific device */
- cfg = snd_intel_dsp_find_config(pci, config_table, ARRAY_SIZE(config_table));
- if (!cfg)
- return SND_INTEL_DSP_DRIVER_ANY;
- if (cfg->flags & FLAG_SOF) {
- if (cfg->flags & FLAG_SOF_ONLY_IF_SOUNDWIRE &&
- snd_intel_dsp_check_soundwire(pci) > 0) {
- dev_info(&pci->dev, "SoundWire enabled on CannonLake+ platform, using SOF driver\n");
- return SND_INTEL_DSP_DRIVER_SOF;
- }
- if (cfg->flags & FLAG_SOF_ONLY_IF_DMIC &&
- snd_intel_dsp_check_dmic(pci)) {
- dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SOF driver\n");
- return SND_INTEL_DSP_DRIVER_SOF;
- }
- if (!(cfg->flags & FLAG_SOF_ONLY_IF_DMIC_OR_SOUNDWIRE))
- return SND_INTEL_DSP_DRIVER_SOF;
- }
- if (cfg->flags & FLAG_SST) {
- if (cfg->flags & FLAG_SST_ONLY_IF_DMIC) {
- if (snd_intel_dsp_check_dmic(pci)) {
- dev_info(&pci->dev, "Digital mics found on Skylake+ platform, using SST driver\n");
- return SND_INTEL_DSP_DRIVER_SST;
- }
- } else {
- return SND_INTEL_DSP_DRIVER_SST;
- }
- }
- return SND_INTEL_DSP_DRIVER_LEGACY;
- }
- EXPORT_SYMBOL_GPL(snd_intel_dsp_driver_probe);
- /* Should we default to SOF or SST for BYT/CHT ? */
- #if IS_ENABLED(CONFIG_SND_INTEL_BYT_PREFER_SOF) || \
- !IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI)
- #define FLAG_SST_OR_SOF_BYT FLAG_SOF
- #else
- #define FLAG_SST_OR_SOF_BYT FLAG_SST
- #endif
- /*
- * configuration table
- * - the order of similar ACPI ID entries is important!
- * - the first successful match will win
- */
- static const struct config_entry acpi_config_table[] = {
- #if IS_ENABLED(CONFIG_SND_SST_ATOM_HIFI2_PLATFORM_ACPI) || \
- IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
- /* BayTrail */
- {
- .flags = FLAG_SST_OR_SOF_BYT,
- .acpi_hid = "80860F28",
- },
- /* CherryTrail */
- {
- .flags = FLAG_SST_OR_SOF_BYT,
- .acpi_hid = "808622A8",
- },
- #endif
- /* Broadwell */
- #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT)
- {
- .flags = FLAG_SST,
- .acpi_hid = "INT3438"
- },
- #endif
- #if IS_ENABLED(CONFIG_SND_SOC_SOF_BROADWELL)
- {
- .flags = FLAG_SOF,
- .acpi_hid = "INT3438"
- },
- #endif
- /* Haswell - not supported by SOF but added for consistency */
- #if IS_ENABLED(CONFIG_SND_SOC_INTEL_CATPT)
- {
- .flags = FLAG_SST,
- .acpi_hid = "INT33C8"
- },
- #endif
- };
- static const struct config_entry *snd_intel_acpi_dsp_find_config(const u8 acpi_hid[ACPI_ID_LEN],
- const struct config_entry *table,
- u32 len)
- {
- for (; len > 0; len--, table++) {
- if (memcmp(table->acpi_hid, acpi_hid, ACPI_ID_LEN))
- continue;
- if (table->dmi_table && !dmi_check_system(table->dmi_table))
- continue;
- return table;
- }
- return NULL;
- }
- int snd_intel_acpi_dsp_driver_probe(struct device *dev, const u8 acpi_hid[ACPI_ID_LEN])
- {
- const struct config_entry *cfg;
- if (dsp_driver > SND_INTEL_DSP_DRIVER_LEGACY && dsp_driver <= SND_INTEL_DSP_DRIVER_LAST)
- return dsp_driver;
- if (dsp_driver == SND_INTEL_DSP_DRIVER_LEGACY) {
- dev_warn(dev, "dsp_driver parameter %d not supported, using automatic detection\n",
- SND_INTEL_DSP_DRIVER_LEGACY);
- }
- /* find the configuration for the specific device */
- cfg = snd_intel_acpi_dsp_find_config(acpi_hid, acpi_config_table,
- ARRAY_SIZE(acpi_config_table));
- if (!cfg)
- return SND_INTEL_DSP_DRIVER_ANY;
- if (cfg->flags & FLAG_SST)
- return SND_INTEL_DSP_DRIVER_SST;
- if (cfg->flags & FLAG_SOF)
- return SND_INTEL_DSP_DRIVER_SOF;
- return SND_INTEL_DSP_DRIVER_SST;
- }
- EXPORT_SYMBOL_GPL(snd_intel_acpi_dsp_driver_probe);
- MODULE_LICENSE("GPL v2");
- MODULE_DESCRIPTION("Intel DSP config driver");
- MODULE_IMPORT_NS(SND_INTEL_SOUNDWIRE_ACPI);
|