[Why]
Due to a small pre-fetch window, the active vline timing is a couple
of lines off when compared to what it should be.
[How]
Changed the calculation for the start vline to account for this window.
Signed-off-by: Murton Liu <murton.liu@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
req_delta_lines--;
if (req_delta_lines > vsync_line)
- start_line = dc_crtc_timing->v_total - (req_delta_lines - vsync_line) - 1;
+ start_line = dc_crtc_timing->v_total - (req_delta_lines - vsync_line) + 2;
else
start_line = vsync_line - req_delta_lines;