ALSA: hda - Fix pop noise in headphones on S3 for Asus X55A, X55V

To turn off pin control for the pin was tested, and helped against
this issue.

BugLink: https://bugs.launchpad.net/bugs/1034779
Tested-by: Chih-Hsyuan Ho <chih.ho@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 8 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_via.c b/sound/pci/hda/patch_via.c
index 80d90cb42853..430771776915 100644
--- a/sound/pci/hda/patch_via.c
+++ b/sound/pci/hda/patch_via.c
@@ -1752,6 +1752,14 @@ static int via_suspend(struct hda_codec *codec)
 {
         struct via_spec *spec = codec->spec;
         vt1708_stop_hp_work(spec);
+
+        if (spec->codec_type == VT1802) {
+                /* Fix pop noise on headphones */
+                int i;
+                for (i = 0; i < spec->autocfg.hp_outs; i++)
+                        snd_hda_set_pin_ctl(codec, spec->autocfg.hp_pins[i], 0);
+        }
+
         return 0;
 }
 #endif