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drm/vc4: Use __drm_atomic_helper_plane_reset instead of copying the logic

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A new helper function(__drm_atomic_helper_plane_reset) has been added
for linking a plane with its state and resetting the core
properties(alpha, rotation, etc.) to their default values.
Use that instead of duplicating the logic.

__drm_atomic_helper_plane_reset initializes the alpha property to its
max value, which is defined by the drm core as DRM_BLEND_ALPHA_OPAQUE,
so nothing changes regarding the alpha value.

Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Acked-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20180804161530.12275-10-alexandru-cosmin.gheorghe@arm.com
This commit is contained in:
Alexandru Gheorghe 2018-08-04 17:15:29 +01:00
parent e750218d26
commit 42da633809
1 changed files with 1 additions and 3 deletions
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4
drivers/gpu/drm/vc4/vc4_plane.c
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@ -200,9 +200,7 @@ static void vc4_plane_reset(struct drm_plane *plane)
if (!vc4_state)
return;
plane->state = &vc4_state->base;
plane->state->alpha = DRM_BLEND_ALPHA_OPAQUE;
vc4_state->base.plane = plane;
__drm_atomic_helper_plane_reset(plane, &vc4_state->base);
}
static void vc4_dlist_write(struct vc4_plane_state *vc4_state, u32 val)