RADEON_TV_VSCALER_CNTL1_Y_DEL_W_SIG_SHIFT
values->tv_vscaler_cntl1 |= 4 << RADEON_TV_VSCALER_CNTL1_Y_DEL_W_SIG_SHIFT;
values->tv_vscaler_cntl1 |= 2 << RADEON_TV_VSCALER_CNTL1_Y_DEL_W_SIG_SHIFT;
values->tv_vscaler_cntl1 |= 2 << RADEON_TV_VSCALER_CNTL1_Y_DEL_W_SIG_SHIFT;