From: 邱建斌 <qjb@rock-chips.com>
Date: Tue, 18 Dec 2012 09:01:24 +0000 (+0800)
Subject: rt5631 phone: standby enable micbias
X-Git-Tag: firefly_0821_release~8096
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=9e329ef41d6afa8b0ff21929d5f170e67fe38a59;p=firefly-linux-kernel-4.4.55.git

rt5631 phone: standby enable micbias
---

diff --git a/sound/soc/codecs/rt5631_phone.c b/sound/soc/codecs/rt5631_phone.c
index 814e48bebb20..6409a170ea6b 100755
--- a/sound/soc/codecs/rt5631_phone.c
+++ b/sound/soc/codecs/rt5631_phone.c
@@ -2107,6 +2107,11 @@ static int rt5631_set_bias_level(struct snd_soc_codec *codec,
 			snd_soc_update_bits(codec, RT5631_PWR_MANAG_ADD3,
 				RT5631_PWR_FAST_VREF_CTRL,
 				RT5631_PWR_FAST_VREF_CTRL);
+			msleep(100);
+			snd_soc_update_bits(codec, RT5631_PWR_MANAG_ADD2,
+				RT5631_PWR_MICBIAS1_VOL | RT5631_PWR_MICBIAS2_VOL,
+				RT5631_PWR_MICBIAS1_VOL | RT5631_PWR_MICBIAS2_VOL);
+	
 			codec->cache_only = false;
 			codec->cache_sync = 1;
 			snd_soc_cache_sync(codec);