From: Harsha Priya <harshapriya.n@intel.com>
Date: Thu, 9 Oct 2014 11:04:56 +0000 (+0000)
Subject: ALSA: ALC283 codec - Avoid pop noise on headphones during suspend/resume
X-Git-Tag: v4.9.8~5095^2~76
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b450b17c156e264bc44a198046d3ebaaef5a041d;p=platform%2Fkernel%2Flinux-rpi3.git

ALSA: ALC283 codec - Avoid pop noise on headphones during suspend/resume

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@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index bc86c36..4c35490 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2884,6 +2884,9 @@ static void alc283_shutup(struct hda_codec *codec)
 
 	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);