Conexnat HD-audio driver has a workaround for cx5051 (aka CX20561) chip to add fake mute controls to each amp (commit 3868137e). This implies the minimum-as-mute TLV bit in TLV for each corresponding control. Meanwhile we build the virtual master from these, but the TLV bit is missing, even though the slaves have it.
This patch simply adds the missing TLV_DB_SCALE_MUTE bit for vmaster, as already done in patch_sigmatel.c.
Signed-off-by: Takashi Iwai tiwai@suse.de
sound/pci/hda/patch_conexant.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/sound/pci/hda/patch_conexant.c
b/sound/pci/hda/patch_conexant.c
index 7627a69ca6d7..6f2fa838b635 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -26,6 +26,7 @@ #include <linux/module.h> #include <sound/core.h> #include <sound/jack.h> +#include <sound/tlv.h>
#include "hda_codec.h" #include "hda_local.h" @@ -859,6 +860,11 @@ static int patch_conexant_auto(struct hda_codec
*codec)
if (err < 0) goto error;
if (codec->vendor_id == 0x14f15051) {/* minimum value is actually mute */spec->gen.vmaster_tlv[3] |= TLV_DB_SCALE_MUTE;}codec->patch_ops = cx_auto_patch_ops; /* Some laptops with Conexant chips show stalls in S3 resume,--
Does this mean that when there is no hardware mute switch, the driver create a fake one using mindB of volume as mute ?
But this mean that the volume control and mute are not independent anymore, just like those pulseaudio volume controls, volume always change to zero after mute and unmute