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ALSA: hda - Preserve input pin-ctl bits in HP-automute for VIA codec 

For smart51 pins, we need to preserve the input pin-control bits at
auto-mute controls instead of overwriting zero or pin-out-only.
Otherwise the VREF won't be set properly when smart51 is disabled
again.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2011-07-11 11:36:44 +02:00
parent 6e969d9155
commit 9499473463
1 changed files with 11 additions and 3 deletions
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14
sound/pci/hda/patch_via.c
View File

@ -1509,10 +1509,18 @@ static void toggle_output_mutes(struct hda_codec *codec, int num_pins,
hda_nid_t *pins, bool mute)
{
int i;
for (i = 0; i < num_pins; i++)
for (i = 0; i < num_pins; i++) {
unsigned int parm = snd_hda_codec_read(codec, pins[i], 0,
AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
if (parm & AC_PINCTL_IN_EN)
continue;
if (mute)
parm &= ~AC_PINCTL_OUT_EN;
else
parm |= AC_PINCTL_OUT_EN;
snd_hda_codec_write(codec, pins[i], 0,
AC_VERB_SET_PIN_WIDGET_CONTROL,
mute ? 0 : PIN_OUT);
AC_VERB_SET_PIN_WIDGET_CONTROL, parm);
}
}
/* mute internal speaker if line-out is plugged */