ASoC: Intel: common: add quirk for APL RVP boards

For some reason the RVP/LeafHill SSDT exposes an INT34C3 ID which is
used on other boards to point to the TDF8532 amplifier. Yay BIOS.

Add a DMI-quirk to ignore this ID and check for other valid machine
driver descriptors.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/intel/common/soc-acpi-intel-bxt-match.c b/sound/soc/intel/common/soc-acpi-intel-bxt-match.c
index 2756fa4ab55201b99032c626f4598d416c37e39e..61dedc103b19664cca08bab2b79669220242ff36 100644 (file)
--- a/sound/soc/intel/common/soc-acpi-intel-bxt-match.c
+++ b/sound/soc/intel/common/soc-acpi-intel-bxt-match.c
@@ -6,9 +6,41 @@
  *
  */
 
+#include <linux/dmi.h>
 #include <sound/soc-acpi.h>
 #include <sound/soc-acpi-intel-match.h>
 
+enum {
+       APL_RVP,
+};
+
+static const struct dmi_system_id apl_table[] = {
+       {
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
+                       DMI_MATCH(DMI_BOARD_NAME, "Apollolake RVP1A"),
+               },
+               .driver_data = (void *)(APL_RVP),
+       },
+       {}
+};
+
+static struct snd_soc_acpi_mach *apl_quirk(void *arg)
+{
+       struct snd_soc_acpi_mach *mach = arg;
+       const struct dmi_system_id *dmi_id;
+       unsigned long apl_machine_id;
+
+       dmi_id = dmi_first_match(apl_table);
+       if (dmi_id) {
+               apl_machine_id = (unsigned long)dmi_id->driver_data;
+               if (apl_machine_id == APL_RVP)
+                       return NULL;
+       }
+
+       return mach;
+}
+
 static struct snd_soc_acpi_codecs bxt_codecs = {
        .num_codecs = 1,
        .codecs = {"MX98357A"}
@@ -50,6 +82,7 @@ struct snd_soc_acpi_mach snd_soc_acpi_intel_bxt_machines[] = {
        {
                .id = "INT34C3",
                .drv_name = "bxt_tdf8532",
+               .machine_quirk = apl_quirk,
                .sof_fw_filename = "intel/sof-apl.ri",
                .sof_tplg_filename = "intel/sof-apl-tdf8532.tplg",
                .asoc_plat_name = "0000:00:0e.0",