From: 邱建斌 <qjb@rock-chips.com>
Date: Mon, 18 Feb 2013 12:00:54 +0000 (+0800)
Subject: rk610 codec : The headphone playback the probability of loss of a channel
X-Git-Tag: firefly_0821_release~7607
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=16478d8a3902879f5f3bd2521f453abe681c4f24;p=firefly-linux-kernel-4.4.55.git

rk610 codec : The headphone playback the probability of loss of a channel
---

diff --git a/sound/soc/codecs/rk610_codec.c b/sound/soc/codecs/rk610_codec.c
index a6b89a04fa58..b2139ced16ef 100755
--- a/sound/soc/codecs/rk610_codec.c
+++ b/sound/soc/codecs/rk610_codec.c
@@ -712,11 +712,15 @@ void rk610_codec_reg_set(void)
     rk610_codec_write(codec,ACCELCODEC_R00, ASC_HPF_ENABLE|ASC_DSM_MODE_ENABLE|ASC_SCRAMBLE_ENABLE|ASC_DITHER_ENABLE|ASC_BCLKDIV_4);
     //2volume,input,output
     digital_gain = Volume_Output;
-    rk610_codec_write(codec,ACCELCODEC_R05, (digital_gain >> 8) & 0xFF);
-    rk610_codec_write(codec,ACCELCODEC_R06, digital_gain & 0xFF);
-    rk610_codec_write(codec,ACCELCODEC_R07, (digital_gain >> 8) & 0xFF);
-    rk610_codec_write(codec,ACCELCODEC_R08, digital_gain & 0xFF);
-
+	
+	if(rk610_codec_read(codec,ACCELCODEC_R05)!=0x0f) {
+		rk610_codec_write(codec,ACCELCODEC_R05, (digital_gain >> 8) & 0xFF);
+		rk610_codec_write(codec,ACCELCODEC_R06, digital_gain & 0xFF);
+	}
+	if(rk610_codec_read(codec,ACCELCODEC_R07)!=0x0f){
+		rk610_codec_write(codec,ACCELCODEC_R07, (digital_gain >> 8) & 0xFF);
+		rk610_codec_write(codec,ACCELCODEC_R08, digital_gain & 0xFF);
+	}
     rk610_codec_write(codec,ACCELCODEC_R0B, ASC_DEC_ENABLE|ASC_INT_ENABLE);
     gR0BReg = ASC_DEC_ENABLE|ASC_INT_ENABLE;  //ASC_DEC_DISABLE|ASC_INT_ENABLE;