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authorTakashi Iwai <tiwai@suse.de>2012-02-13 18:04:06 +0400
committerTakashi Iwai <tiwai@suse.de>2012-02-13 18:04:06 +0400
commitfc1156c0b0f7ad45ec03d919866349eeca2bf18c (patch)
tree8125e803f6e9b1e73e48e262d5b7616ac2cb0a56 /sound
parenta1e0c3cf7fb07227fe1f26161d969101dba78287 (diff)
downloadlinux-fc1156c0b0f7ad45ec03d919866349eeca2bf18c.tar.xz
ALSA: hda - Fix initialization of secondary capture source on VT1705
VT1705 codec has two ADCs where the secondary ADC has no MUX but only a fixed connection to the mic pin. This confused the driver and it tries always overriding the input-source selection by assumption of the existing MUX for the secondary ADC, resulted in resetting the input-source at each time PM (including power-saving) occurs. The fix is simply to check the existence of MUX for secondary ADCs in the initialization code. Tested-by: Anisse Astier <anisse@astier.eu> Cc: <stable@kernel.org> [v3.1+] Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/patch_via.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 284e311040fe..dff9a00ee8fb 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -666,6 +666,9 @@ static void via_auto_init_analog_input(struct hda_codec *codec)
/* init input-src */
for (i = 0; i < spec->num_adc_nids; i++) {
int adc_idx = spec->inputs[spec->cur_mux[i]].adc_idx;
+ /* secondary ADCs must have the unique MUX */
+ if (i > 0 && !spec->mux_nids[i])
+ break;
if (spec->mux_nids[adc_idx]) {
int mux_idx = spec->inputs[spec->cur_mux[i]].mux_idx;
snd_hda_codec_write(codec, spec->mux_nids[adc_idx], 0,