[PATCH 3.16 082/127] ALSA: ALC283 codec - Avoid pop noise on headphones during suspend/resume

From: Greg Kroah-Hartman
Date: Tue Oct 28 2014 - 03:06:18 EST


3.16-stable review patch. If anyone has any objections, please let me know.

------------------

From: Harsha Priya <harshapriya.n@xxxxxxxxx>

commit b450b17c156e264bc44a198046d3ebaaef5a041d upstream.

This patch sets the headphones mode to default before suspending
which helps avoid the pop noise on headphones

Signed-off-by: Harsha Priya <harshapriya.n@xxxxxxxxx>
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
sound/pci/hda/patch_realtek.c | 3 +++
1 file changed, 3 insertions(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3103,6 +3103,9 @@ static void alc283_shutup(struct hda_cod

alc_write_coef_idx(codec, 0x43, 0x9004);

+ /*depop hp during suspend*/
+ alc_write_coef_idx(codec, 0x06, 0x2100);
+
snd_hda_codec_write(codec, hp_pin, 0,
AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);



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