drm/amd/display: Reset alpha state for planes to the correct values
authorNicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Thu, 28 Feb 2019 17:57:59 +0000 (12:57 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 21 Mar 2019 04:39:47 +0000 (23:39 -0500)
commiteec3d5efd16d13984a88396b685ae17462fb6d87
tree51dcf57489b3f1fc747bb85101ef4f1faba87e95
parent1d31408a4c29087687292c5fb5190cf00802c509
drm/amd/display: Reset alpha state for planes to the correct values

[Why]
The plane_reset callback is subclassed but hasn't been updated since
the drm helper got updated to include resetting alpha related state
(state->alpha and state->pixel_blend_mode). The overlay planes
exposed by amdgpu_dm were therefore being rendered as invisible by
default ever since supported was exposed for alpha blending properties
on overlays.

This caused regressions in igt@kms_plane_multiple@atomic-tiling-none
and igt@kms_plane@plane-position-covered-pipe tests.

[How]
Reset the plane state values to their correct values as defined in
the drm helper.

This fixes the IGT test regression.

Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c