http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=1172 This patch seems to alleviate the symptoms but doesn't cure them. Keep it to keep development going, until we have a proper solution. Index: linux-2.6.24/sound/soc/codecs/wm8753.c =================================================================== --- linux-2.6.24.orig/sound/soc/codecs/wm8753.c +++ linux-2.6.24/sound/soc/codecs/wm8753.c @@ -1585,6 +1585,9 @@ schedule_delayed_work(&codec->delayed_work, msecs_to_jiffies(caps_charge)); + /* Fix reg WM8753_ADCTL2 */ + wm8753_write(codec, WM8753_ADCTL2, 0x0000); + /* set the update bits */ reg = wm8753_read_reg_cache(codec, WM8753_LDAC); wm8753_write(codec, WM8753_LDAC, reg | 0x0100);