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| author | Takashi Iwai <tiwai@suse.de> | 2010-04-01 16:04:13 +0200 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2010-04-01 16:04:13 +0200 |
| commit | 7a2e38a555f2b1a20aaaf30f3d8ecad8faa97ea7 (patch) | |
| tree | c1200e80306c785e5d6713f11470eed8f7ca4d75 /sound/pci | |
| parent | Merge branch 'fix/hda' into topic/hda (diff) | |
| parent | ALSA: hda: Fix 0 dB offset for Lenovo Thinkpad models using AD1981 (diff) | |
| download | linux-7a2e38a555f2b1a20aaaf30f3d8ecad8faa97ea7.tar.xz linux-7a2e38a555f2b1a20aaaf30f3d8ecad8faa97ea7.zip | |
Merge branch 'fix/hda' into topic/hda
Diffstat (limited to 'sound/pci')
| -rw-r--r-- | sound/pci/hda/patch_analog.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c index 262f5b5decf1..9cbd80cba122 100644 --- a/sound/pci/hda/patch_analog.c +++ b/sound/pci/hda/patch_analog.c @@ -1904,6 +1904,14 @@ static int patch_ad1981(struct hda_codec *codec) case AD1981_THINKPAD: spec->mixers[0] = ad1981_thinkpad_mixers; spec->input_mux = &ad1981_thinkpad_capture_source; + /* set the upper-limit for mixer amp to 0dB for avoiding the + * possible damage by overloading + */ + snd_hda_override_amp_caps(codec, 0x11, HDA_INPUT, + (0x17 << AC_AMPCAP_OFFSET_SHIFT) | + (0x17 << AC_AMPCAP_NUM_STEPS_SHIFT) | + (0x05 << AC_AMPCAP_STEP_SIZE_SHIFT) | + (1 << AC_AMPCAP_MUTE_SHIFT)); break; case AD1981_TOSHIBA: spec->mixers[0] = ad1981_hp_mixers; |