diff options
| author | Robin Chen <robin.chen@amd.com> | 2024-07-18 16:48:26 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-08-13 10:44:16 -0400 |
| commit | 027347d17a16562f3be272833243b835c21aa2a5 (patch) | |
| tree | 7ac2b9c1b32b88a6aeb195f56577974ef7f6fd89 | |
| parent | 3bb41f2e9134906e0814766c07dfbdd9de0bfaf5 (diff) | |
drm/amd/display: Optimize vstartup position for AS-SDP
[Why]
In current design, the vstartup position is adjusted to
vblank start position when AS-SDP is enabled.
However when the vblank length is too big, it may over
vstartup boundary.
[How]
To adjust vstartup position to 1 line before vsync position.
Reviewed-by: Anthony Koo <anthony.koo@amd.com>
Signed-off-by: Robin Chen <robin.chen@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c index efe337ebf7c8..e9fea9c2162e 100644 --- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c +++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/dcn20_fpu.c @@ -1132,7 +1132,8 @@ static void dcn20_adjust_freesync_v_startup( patched_crtc_timing.v_addressable - patched_crtc_timing.v_border_top; - newVstartup = asic_blank_end + (patched_crtc_timing.v_total - asic_blank_start); + /* The newVStartUp is 1 line before vsync point */ + newVstartup = asic_blank_end + 1; *vstartup_start = ((newVstartup > *vstartup_start) ? newVstartup : *vstartup_start); } |