diff --git a/sound/soc/codecs/rk2928_codec.c b/sound/soc/codecs/rk2928_codec.c
index 79c09b6a4e2a..966474c07bc2 100755
--- a/sound/soc/codecs/rk2928_codec.c
+++ b/sound/soc/codecs/rk2928_codec.c
@@ -313,6 +313,8 @@ static int rk2928_set_bias_level(struct snd_soc_codec *codec,
 {
 	DBG("%s level %d\n", __FUNCTION__, level);
 	
+        msleep(100);
+
 	if(codec == NULL)
 		return -1;