[PATCH] soundwire: dmi-quirks: Disable ghost Realtek on Asus Expertbook
From: Charles Keepax
Date: Tue Jun 30 2026 - 04:13:58 EST
The Asus Expertbook B9406CAA also has a Realtek device in the ACPI that
doesn't exist in the physical hardware. This confuses the machine driver
into attempting to create DAI links for the device. Add a quirk to
remove this device.
Closes: https://github.com/thesofproject/linux/issues/5828
Signed-off-by: Charles Keepax <ckeepax@xxxxxxxxxxxxxxxxxxxxx>
---
Seems the last quirk turned out to be unnecessary, so won't be resending
that. However, to make sure we didn't get bored this one has turned up
instead :-)
Thanks,
Charles
drivers/soundwire/dmi-quirks.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/soundwire/dmi-quirks.c b/drivers/soundwire/dmi-quirks.c
index 32a46a2d90f7c..2a98fc8c104d6 100644
--- a/drivers/soundwire/dmi-quirks.c
+++ b/drivers/soundwire/dmi-quirks.c
@@ -178,6 +178,13 @@ static const struct dmi_system_id adr_remap_quirk_table[] = {
.driver_data = (void *)hp_omen_16,
},
/* PTL devices */
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUS"),
+ DMI_MATCH(DMI_BOARD_NAME, "B9406CAA"),
+ },
+ .driver_data = (void *)ghost_realtek,
+ },
{
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "ASUS"),
--
2.47.3