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ALSA: hda - Introduce the bitmask for excluding output volume

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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>
This commit is contained in:
Takashi Iwai 2013-11-04 16:32:01 +01:00
parent 485e3e0cdf
commit a1114a8c68
3 changed files with 11 additions and 2 deletions
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2
sound/pci/hda/patch_cirrus.c
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@ -660,6 +660,8 @@ static int patch_cs4208(struct hda_codec *codec)
return -ENOMEM;
spec->gen.automute_hook = cs_automute;
/* exclude NID 0x10 (HP) from output volumes due to different steps */
spec->gen.out_vol_mask = 1ULL << 0x10;
snd_hda_pick_fixup(codec, cs4208_models, cs4208_fixup_tbl,
cs4208_fixups);