ALSA: hda - Add VREF powerdown sequence for another board

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>

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index b34d78b..61996a2 100644 (file)
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -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,