Commit 42da6338 authored Aug 04, 2018 by Alexandru Gheorghe

drm/vc4: Use __drm_atomic_helper_plane_reset instead of copying the logic



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

parent e750218d

drivers/gpu/drm/vc4/vc4_plane.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -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)

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