dect/linux-2.6
Archived
14
0
Fork 0
Code Releases Activity

ALSA: hda - Add VREF powerdown sequence for another board

Browse source 
Add powerdown sequence for VREF using a shared jack when the headphone
is present and the microphone isn't on.

Signed-off-by: Matthew Ranostay <mranostay@embeddedalley.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Matthew Ranostay 2009-04-06 09:30:46 -04:00 committed by Takashi Iwai
parent bca68467b5
commit fd60cc897a
1 changed files with 18 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
sound/pci/hda/patch_sigmatel.c
View file

@ -4413,6 +4413,24 @@ static void stac92xx_unsol_event(struct hda_codec *codec, unsigned int res)
if (spec->num_pwrs > 0)
stac92xx_pin_sense(codec, event->nid);
stac92xx_report_jack(codec, event->nid);
switch (codec->subsystem_id) {
case 0x103c308f:
if (event->nid == 0xb) {
int pin = AC_PINCTL_IN_EN;
if (get_pin_presence(codec, 0xa)
&& get_pin_presence(codec, 0xb))
pin |= AC_PINCTL_VREF_80;
if (!get_pin_presence(codec, 0xb))
pin |= AC_PINCTL_VREF_80;
/* toggle VREF state based on mic + hp pin
* status
*/
stac92xx_auto_set_pinctl(codec, 0x0a, pin);
}
}
break;
case STAC_VREF_EVENT:
data = snd_hda_codec_read(codec, codec->afg, 0,