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authorLydia Wang <lydiawang@viatech.com.cn>2009-10-10 19:07:32 +0800
committerTakashi Iwai <tiwai@suse.de>2009-10-11 17:54:28 +0200
commitc2c02ea326d3683f551120e74a297b354a223357 (patch)
treebdd442f72ff0a83922f0357b4df5f7736bbb7315 /sound/pci/hda/patch_via.c
parent518bf3ba753ad93644e7c6cf95c043c918d9429b (diff)
ALSA: HDA VIA: Limit VT1702 AA-Path max volume
according to customer request, VT1702 AA-Path max volume (12 dB) is too high, so limit to 0 dB. Signed-off-by: Lydia Wang <lydiawang@viatech.com.cn> Signed-off-by: Logan Li <loganli@viatech.com.cn> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/patch_via.c')
-rw-r--r--sound/pci/hda/patch_via.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 4d9ffd6f190..e6269898428 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -3166,6 +3166,12 @@ static int vt1702_parse_auto_config(struct hda_codec *codec)
err = vt1702_auto_create_hp_ctls(spec, spec->autocfg.hp_pins[0]);
if (err < 0)
return err;
+ /* limit AA path volume to 0 dB */
+ snd_hda_override_amp_caps(codec, 0x1A, HDA_INPUT,
+ (0x17 << AC_AMPCAP_OFFSET_SHIFT) |
+ (0x17 << AC_AMPCAP_NUM_STEPS_SHIFT) |
+ (0x5 << AC_AMPCAP_STEP_SIZE_SHIFT) |
+ (1 << AC_AMPCAP_MUTE_SHIFT));
err = vt1702_auto_create_analog_input_ctls(spec, &spec->autocfg);
if (err < 0)
return err;