drm/i915: Clean up intel_plane_atomic_check_with_state()

Rename some of the state variables in
intel_plane_atomic_check_with_state() to make it less confusing.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190111170823.4441-2-ville.syrjala@linux.intel.comReviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>

drivers/gpu/drm/i915/intel_atomic_plane.c

@@ -110,41 +110,39 @@ intel_plane_destroy_state(struct drm_plane *plane,
 }
 
 int intel_plane_atomic_check_with_state(const struct intel_crtc_state *old_crtc_state,
-					struct intel_crtc_state *crtc_state,
+					struct intel_crtc_state *new_crtc_state,
 					const struct intel_plane_state *old_plane_state,
-					struct intel_plane_state *intel_state)
+					struct intel_plane_state *new_plane_state)
 {
-	struct drm_plane *plane = intel_state->base.plane;
-	struct drm_plane_state *state = &intel_state->base;
-	struct intel_plane *intel_plane = to_intel_plane(plane);
+	struct intel_plane *plane = to_intel_plane(new_plane_state->base.plane);
 	int ret;
 
-	crtc_state->active_planes &= ~BIT(intel_plane->id);
-	crtc_state->nv12_planes &= ~BIT(intel_plane->id);
-	intel_state->base.visible = false;
+	new_crtc_state->active_planes &= ~BIT(plane->id);
+	new_crtc_state->nv12_planes &= ~BIT(plane->id);
+	new_plane_state->base.visible = false;
 
-	/* If this is a cursor plane, no further checks are needed. */
-	if (!intel_state->base.crtc && !old_plane_state->base.crtc)
+	if (!new_plane_state->base.crtc && !old_plane_state->base.crtc)
 		return 0;
 
-	ret = intel_plane->check_plane(crtc_state, intel_state);
+	ret = plane->check_plane(new_crtc_state, new_plane_state);
 	if (ret)
 		return ret;
 
 	/* FIXME pre-g4x don't work like this */
-	if (state->visible)
-		crtc_state->active_planes |= BIT(intel_plane->id);
+	if (new_plane_state->base.visible)
+		new_crtc_state->active_planes |= BIT(plane->id);
 
-	if (state->visible && state->fb->format->format == DRM_FORMAT_NV12)
-		crtc_state->nv12_planes |= BIT(intel_plane->id);
+	if (new_plane_state->base.visible &&
+	    new_plane_state->base.fb->format->format == DRM_FORMAT_NV12)
+		new_crtc_state->nv12_planes |= BIT(plane->id);
 
-	if (state->visible || old_plane_state->base.visible)
-		crtc_state->update_planes |= BIT(intel_plane->id);
+	if (new_plane_state->base.visible || old_plane_state->base.visible)
+		new_crtc_state->update_planes |= BIT(plane->id);
 
 	return intel_plane_atomic_calc_changes(old_crtc_state,
-					       &crtc_state->base,
+					       &new_crtc_state->base,
 					       old_plane_state,
-					       state);
+					       &new_plane_state->base);
 }
 
 static int intel_plane_atomic_check(struct drm_plane *plane,