[PATCH] ASoC: amd: yc: Add Alienware m15 R7 AMD to DMIC quirk table

From: Jetha Chan

Date: Mon Jun 29 2026 - 20:34:27 EST


The Alienware m15 R7 AMD exposes an ACP6x DMIC path, but its DMI
product name is not present in the Yellow Carp ACP quirk table. As a
result, the ACP machine driver does not enable the DMIC card on this
system.

Add the DMI product name for this machine. With this quirk applied, the
kernel reports:

acp_yc_mach acp_yc_mach.0: Enabling ACP DMIC support via DMI

and ALSA exposes the ACP DMIC capture device:

card 3: acp6x
device 0: DMIC capture dmic-hifi-0

Tested on an Alienware m15 R7 AMD with product SKU 0B59.

Link: https://jethachan.net/dev/2026/03/21/fixing-internal-microphone-alienware-linux.html
Assisted-by: OpenAI-Codex:gpt-5.5
Signed-off-by: Jetha Chan <jethachan@xxxxxxxxx>
---
sound/soc/amd/yc/acp6x-mach.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/sound/soc/amd/yc/acp6x-mach.c b/sound/soc/amd/yc/acp6x-mach.c
index 000000000000..000000000000 100644
--- a/sound/soc/amd/yc/acp6x-mach.c
+++ b/sound/soc/amd/yc/acp6x-mach.c
@@ -504,6 +504,13 @@ static const struct dmi_system_id yc_acp_quirk_table[] = {
.driver_data = &acp6x_card,
.matches = {
DMI_MATCH(DMI_BOARD_VENDOR, "Alienware"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m15 R7 AMD"),
+ }
+ },
+ {
+ .driver_data = &acp6x_card,
+ .matches = {
+ DMI_MATCH(DMI_BOARD_VENDOR, "Alienware"),
DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m17 R5 AMD"),
}
},
--
2.50.0