diff options
| author | Takashi Iwai <tiwai@suse.de> | 2013-11-04 16:32:01 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-11-05 07:49:41 +0100 |
| commit | a1114a8c681b0724d6ad905f53ff06aa756f5fb8 (patch) | |
| tree | b482474baaaef3492e48a0acca2e99366974f4ed /sound/pci/hda/hda_generic.c | |
| parent | 485e3e0cdf353e2e37570eafaad7208138bb6620 (diff) | |
| download | linux-a1114a8c681b0724d6ad905f53ff06aa756f5fb8.tar.gz | |
ALSA: hda - Introduce the bitmask for excluding output volume
Add a bitmask to hda_gen_spec indicating NIDs to exclude from the
possible volume controls. That is, when the bit is set, the NID
corresponding to the bit won't be picked as an output volume control
any longer.
Basically this is just a band-aid for working around the issue found
with CS4208 codec, where only the headphone pin has a volume AMP with
different dB steps.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60811
Cc: <stable@vger.kernel.org> [v3.12+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_generic.c')
| -rw-r--r-- | sound/pci/hda/hda_generic.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c index b7c89dff7066..276f6e759bac 100644 --- a/sound/pci/hda/hda_generic.c +++ b/sound/pci/hda/hda_generic.c @@ -549,11 +549,15 @@ static hda_nid_t look_for_out_mute_nid(struct hda_codec *codec, static hda_nid_t look_for_out_vol_nid(struct hda_codec *codec, struct nid_path *path) { + struct hda_gen_spec *spec = codec->spec; int i; for (i = path->depth - 1; i >= 0; i--) { - if (nid_has_volume(codec, path->path[i], HDA_OUTPUT)) - return path->path[i]; + hda_nid_t nid = path->path[i]; + if ((spec->out_vol_mask >> nid) & 1) + continue; + if (nid_has_volume(codec, nid, HDA_OUTPUT)) + return nid; } return 0; } |