From de9481cb40339d9bfc1104b53649876fc5f3d432 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Mon, 7 Apr 2014 16:41:52 +0800
Subject: [PATCH] ALSA: hda/realtek - Improve HP depop when system change power
 state on Chromebook

It is better to change Mic2-Vref to manual mode.
Manual control Mic2-Vref will solve pop noise issue.
It will improve pop noise for power on, power off, S3 and resume.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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