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authorDillon Varone <dillon.varone@amd.com>2024-10-08 21:25:45 +0200
committerAlex Deucher <alexander.deucher@amd.com>2024-10-22 23:50:38 +0200
commit02706006928cdcfa82f3d09cb7575920cf871b95 (patch)
treea85871dd720da735ee23ce90a217b808af49e1f3
parentdrm/amd/display: temp w/a for DP Link Layer compliance (diff)
downloadlinux-02706006928cdcfa82f3d09cb7575920cf871b95.tar.xz
linux-02706006928cdcfa82f3d09cb7575920cf871b95.zip
drm/amd/display: Recalculate SubVP Phantom VBlank End in dml21
[WHY] The phantom stream timing is copied from the main stream as most parameters are identical, however some need to be recalculated. Currently VBlank End is not recalculated and copied from the main incorrectly. [HOW] Recalculate VBlank End for phantom stream timing. Reviewed-by: Alvin Lee <alvin.lee2@amd.com> Signed-off-by: Dillon Varone <dillon.varone@amd.com> Signed-off-by: Wayne Lin <wayne.lin@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/dml2/dml21/src/dml2_core/dml2_core_dcn4.c1
-rw-r--r--drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_utils.c1
2 files changed, 2 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4.c
index 0aa4e4d343b0..3d41ffde91c1 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4.c
@@ -159,6 +159,7 @@ static void create_phantom_stream_from_main_stream(struct dml2_stream_parameters
phantom->timing.v_total = meta->v_total;
phantom->timing.v_active = meta->v_active;
phantom->timing.v_front_porch = meta->v_front_porch;
+ phantom->timing.v_blank_end = phantom->timing.v_total - phantom->timing.v_front_porch - phantom->timing.v_active;
phantom->timing.vblank_nom = phantom->timing.v_total - phantom->timing.v_active;
phantom->timing.drr_config.enabled = false;
}
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_utils.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_utils.c
index ab229e1598ae..714b5c39b7e6 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_utils.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_utils.c
@@ -425,6 +425,7 @@ static void create_phantom_stream_from_main_stream(struct dml2_stream_parameters
phantom->timing.v_total = meta->v_total;
phantom->timing.v_active = meta->v_active;
phantom->timing.v_front_porch = meta->v_front_porch;
+ phantom->timing.v_blank_end = phantom->timing.v_total - phantom->timing.v_front_porch - phantom->timing.v_active;
phantom->timing.vblank_nom = phantom->timing.v_total - phantom->timing.v_active;
phantom->timing.drr_config.enabled = false;
}