drm/i915: Do not use commit_plane for sprite planes.

Use update_plane and disable_plane directly.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452164052-21752-3-git-send-email-maarten.lankhorst@linux.intel.comReviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>

drivers/gpu/drm/i915/intel_atomic_plane.c

@@ -194,8 +194,18 @@ static void intel_plane_atomic_update(struct drm_plane *plane,
 	struct intel_plane *intel_plane = to_intel_plane(plane);
 	struct intel_plane_state *intel_state =
 		to_intel_plane_state(plane->state);
+	struct drm_crtc *crtc = plane->state->crtc ?: old_state->crtc;
+	struct drm_crtc_state *crtc_state =
+		drm_atomic_get_existing_crtc_state(old_state->state, crtc);
 
-	intel_plane->commit_plane(plane, intel_state);
+	if (intel_plane->commit_plane)
+		intel_plane->commit_plane(plane, intel_state);
+	else if (intel_state->visible)
+		intel_plane->update_plane(plane,
+					  to_intel_crtc_state(crtc_state),
+					  intel_state);
+	else
+		intel_plane->disable_plane(plane, crtc);
 }
 
 const struct drm_plane_helper_funcs intel_plane_helper_funcs = {

drivers/gpu/drm/i915/intel_sprite.c

@@ -931,24 +931,6 @@ intel_check_sprite_plane(struct drm_plane *plane,
 	return 0;
 }
 
-static void
-intel_commit_sprite_plane(struct drm_plane *plane,
-			  struct intel_plane_state *state)
-{
-	struct intel_plane *intel_plane = to_intel_plane(plane);
-
-	if (state->visible) {
-		struct intel_crtc_state *crtc_state =
-			to_intel_crtc(state->base.crtc)->config;
-
-		intel_plane->update_plane(plane, crtc_state, state);
-	} else {
-		struct drm_crtc *crtc = state->base.crtc;
-
-		intel_plane->disable_plane(plane, crtc ?: plane->crtc);
-	}
-}
-
 int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
 			      struct drm_file *file_priv)
 {
@@ -1130,7 +1112,6 @@ intel_plane_init(struct drm_device *dev, enum pipe pipe, int plane)
 	intel_plane->plane = plane;
 	intel_plane->frontbuffer_bit = INTEL_FRONTBUFFER_SPRITE(pipe, plane);
 	intel_plane->check_plane = intel_check_sprite_plane;
-	intel_plane->commit_plane = intel_commit_sprite_plane;
 	possible_crtcs = (1 << pipe);
 	ret = drm_universal_plane_init(dev, &intel_plane->base, possible_crtcs,
 				       &intel_plane_funcs,