CODEC_HPOUT_CTRL
val = RKCODEC_READ(sc, CODEC_HPOUT_CTRL);
RKCODEC_WRITE(sc, CODEC_HPOUT_CTRL, val);
RKCODEC_WRITE(sc, CODEC_HPOUT_CTRL, val);
val = RKCODEC_READ(sc, CODEC_HPOUT_CTRL);
RKCODEC_WRITE(sc, CODEC_HPOUT_CTRL, val);