ASoC: Intel: sof_sdw: Add lookup of quirk using PCI subsystem ID

Add lookup of PCI subsystem vendor:device ID to find a quirk.

The subsystem ID (SSID) is part of the PCI specification to uniquely
identify a particular system-specific implementation of a hardware
device.

Unlike DMI information, it identifies the sound hardware itself, rather
than a specific model of PC. SSID can be more reliable and stable than
DMI strings, and is preferred by some vendors as the way to identify
the actual sound hardware.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://patch.msgid.link/20250204053943.93596-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
index b0d35fda7b179afb00ba7c122adf609691baa651..381fae5943fe5aa85674170e94330e49662051f2 100644 (file)
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -13,6 +13,7 @@
 #include <linux/soundwire/sdw.h>
 #include <linux/soundwire/sdw_type.h>
 #include <linux/soundwire/sdw_intel.h>
+#include <sound/core.h>
 #include <sound/soc-acpi.h>
 #include "sof_sdw_common.h"
 #include "../../codecs/rt711.h"
@@ -751,6 +752,22 @@ static const struct dmi_system_id sof_sdw_quirk_table[] = {
        {}
 };
 
+static const struct snd_pci_quirk sof_sdw_ssid_quirk_table[] = {
+       {}
+};
+
+static void sof_sdw_check_ssid_quirk(const struct snd_soc_acpi_mach *mach)
+{
+       const struct snd_pci_quirk *quirk_entry;
+
+       quirk_entry = snd_pci_quirk_lookup_id(mach->mach_params.subsystem_vendor,
+                                             mach->mach_params.subsystem_device,
+                                             sof_sdw_ssid_quirk_table);
+
+       if (quirk_entry)
+               sof_sdw_quirk = quirk_entry->value;
+}
+
 static struct snd_soc_dai_link_component platform_component[] = {
        {
                /* name might be overridden during probe */
@@ -1278,6 +1295,13 @@ static int mc_probe(struct platform_device *pdev)
 
        snd_soc_card_set_drvdata(card, ctx);
 
+       if (mach->mach_params.subsystem_id_set) {
+               snd_soc_card_set_pci_ssid(card,
+                                         mach->mach_params.subsystem_vendor,
+                                         mach->mach_params.subsystem_device);
+               sof_sdw_check_ssid_quirk(mach);
+       }
+
        dmi_check_system(sof_sdw_quirk_table);
 
        if (quirk_override != -1) {
@@ -1293,12 +1317,6 @@ static int mc_probe(struct platform_device *pdev)
        for (i = 0; i < ctx->codec_info_list_count; i++)
                codec_info_list[i].amp_num = 0;
 
-       if (mach->mach_params.subsystem_id_set) {
-               snd_soc_card_set_pci_ssid(card,
-                                         mach->mach_params.subsystem_vendor,
-                                         mach->mach_params.subsystem_device);
-       }
-
        ret = sof_card_dai_links_create(card);
        if (ret < 0)
                return ret;