MTK_AFE_ADDA_DL_GAIN_NORMAL
dl_src2_con1 = MTK_AFE_ADDA_DL_GAIN_NORMAL <<
dl_src_con1 = MTK_AFE_ADDA_DL_GAIN_NORMAL <<
dl_src_con1 |= MTK_AFE_ADDA_DL_GAIN_NORMAL <<
dl_src2_con1 = MTK_AFE_ADDA_DL_GAIN_NORMAL <<