drm/amd/display: Prevent vtotal from being set to 0
authorDaniel Miess <daniel.miess@amd.com>
Thu, 22 Jun 2023 12:11:48 +0000 (08:11 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Tue, 18 Jul 2023 15:15:57 +0000 (11:15 -0400)
commit250a636a3f46be65c9d10d403cf7f12de017d353
tree7c01e999470e7d319cf53536912a278f9c2b2efe
parent63c0bf99c1d020a744eff286d65b33e2960d9d6b
drm/amd/display: Prevent vtotal from being set to 0

[Why]
In dcn314 DML the destination pipe vtotal was being set
to the crtc adjustment vtotal_min value even in cases
where that value is 0.

[How]
Only set vtotal to the crtc adjustment vtotal_min value
in cases where the value is non-zero.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Alan Liu <haoping.liu@amd.com>
Signed-off-by: Daniel Miess <daniel.miess@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/dml/dcn314/dcn314_fpu.c