[alsa-devel] [PATCH] Add VREF powerdown sequence for another board
Matthew Ranostay
mranostay at embeddedalley.com
Mon Apr 6 15:30:46 CEST 2009
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 at embeddedalley.com>
---
sound/pci/hda/patch_sigmatel.c | 16 ++++++++++++++++
1 files changed, 16 insertions(+), 0 deletions(-)
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index b5e108a..a6fc257 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -4413,6 +4413,22 @@ 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,
--
1.5.6.3
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