Linux Sound subsystem development
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* [PATCH] ASoC: amd: acp: Add ACP70 ACPI flag override for LG gram 16U55U
@ 2026-11-12 20:43 suso
  2026-11-12 20:49 ` sashiko-bot
  0 siblings, 1 reply; 2+ messages in thread
From: suso @ 2026-11-12 20:43 UTC (permalink / raw)
  To: broonie, Vijendar.Mukunda; +Cc: jaehoon1744, linux-sound, linux-kernel, suso

The LG gram 16 (16U55U, AMD Ryzen AI 400 series, ACP rev 0x72) shares
the same SoundWire audio hardware (RT713 + RT1320) as the 16Z95U and
requires the same ACPI flag override.

Tested on LG gram 16U55U-G.AU85BN (PCI SSID 1854:057c).

Signed-off-by: suso <gmsuso@gmail.com>
---
 sound/soc/amd/acp-config.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/sound/soc/amd/acp-config.c b/sound/soc/amd/acp-config.c
index efd664e1c34c..93c9a112240d 100644
--- a/sound/soc/amd/acp-config.c
+++ b/sound/soc/amd/acp-config.c
@@ -154,6 +154,13 @@ static const struct dmi_system_id acp70_acpi_flag_override_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "16Z95U"),
 		},
 	},
+	{
+		/* LG gram 16 16U55U (ACP 7.2) */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "16U55U"),
+		},
+	},
 	{}
 };
 
-- 
2.56.0


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