drm: mali-dp: 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.

Reviewed-by: Ayan Kumar halder <ayan.halder@arm.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180804161530.12275-4-alexandru-cosmin.gheorghe@arm.com

diff --git a/drivers/gpu/drm/arm/malidp_planes.c b/drivers/gpu/drm/arm/malidp_planes.c
index 29409a6..49c37f6 100644 (file)
--- a/drivers/gpu/drm/arm/malidp_planes.c
+++ b/drivers/gpu/drm/arm/malidp_planes.c
@@ -78,11 +78,8 @@ static void malidp_plane_reset(struct drm_plane *plane)
        kfree(state);
        plane->state = NULL;
        state = kzalloc(sizeof(*state), GFP_KERNEL);
-       if (state) {
-               state->base.plane = plane;
-               state->base.rotation = DRM_MODE_ROTATE_0;
-               plane->state = &state->base;
-       }
+       if (state)
+               __drm_atomic_helper_plane_reset(plane, &state->base);
 }
 
 static struct