From: Jaroslav Kysela perex@perex.cz
[ Upstream commit 275565997ade6fc32be9cd49a910ba996bcb4797 ]
The ThinkPad E14 Gen 2 latop does not have the internal digital microphone connected to the AMD's ACP bridge, but it's advertised via BIOS. The internal microphone is connected to the HDA codec.
Use DMI to block the microphone PCM device for this platform.
Reported-by: Eliot Blennerhassett eliot@blennerhassett.gen.nz Signed-off-by: Jaroslav Kysela perex@perex.cz Link: https://lore.kernel.org/r/20201227164037.269893-1-perex@perex.cz Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/amd/renoir/rn-pci-acp3x.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/sound/soc/amd/renoir/rn-pci-acp3x.c b/sound/soc/amd/renoir/rn-pci-acp3x.c index 338b78c514ec9..c006fec7ef351 100644 --- a/sound/soc/amd/renoir/rn-pci-acp3x.c +++ b/sound/soc/amd/renoir/rn-pci-acp3x.c @@ -171,6 +171,13 @@ static const struct dmi_system_id rn_acp_quirk_table[] = { DMI_EXACT_MATCH(DMI_BOARD_NAME, "LNVNB161216"), } }, + { + /* Lenovo ThinkPad E14 Gen 2 */ + .matches = { + DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "LENOVO"), + DMI_EXACT_MATCH(DMI_BOARD_NAME, "20T6CTO1WW"), + } + }, {} };