[PATCH] soundwire: dmi-quirks: Disable ghost Realtek on Asus Expertbook

[PATCH] soundwire: dmi-quirks: Disable ghost Realtek on Asus Expertbook

[Charles Keepax]

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@opensource.cirrus.com>
---

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

Re: [PATCH] soundwire: dmi-quirks: Disable ghost Realtek on Asus Expertbook

[Vinod Koul]

On Tue, 30 Jun 2026 09:11:32 +0100, Charles Keepax wrote:
> 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.
> 
> 

Applied, thanks!

[1/1] soundwire: dmi-quirks: Disable ghost Realtek on Asus Expertbook
      commit: 90af3209742db61a7f9d7d054a16165818cfc6d8

Best regards,
-- 
~Vinod