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