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From efc6a9d1ee72f9879b439186615e26d14fe447e1 Mon Sep 17 00:00:00 2001
From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Date: Thu, 28 Feb 2019 12:57:59 -0500
Subject: [PATCH 1633/2940] 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.
Change-Id: I4ebfad24456f8a898cd36394e769a0d216549e92
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>
---
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index b071b41fdc8a..3949d932e648 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3781,6 +3781,8 @@ static void dm_drm_plane_reset(struct drm_plane *plane)
plane->state = &amdgpu_state->base;
plane->state->plane = plane;
plane->state->rotation = DRM_MODE_ROTATE_0;
+ plane->state->alpha = DRM_BLEND_ALPHA_OPAQUE;
+ plane->state->pixel_blend_mode = DRM_MODE_BLEND_PREMULTI;
}
}
--
2.17.1
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