bw_def_none
if (data->d0_underlay_mode == bw_def_none) { d0_underlay_enable = 0; }
if (data->d1_underlay_mode == bw_def_none) { d1_underlay_enable = 0; }
data->panning_and_bezel_adjustment = bw_def_none;
if (data->panning_and_bezel_adjustment != bw_def_none) {