drm/rcar-du: Rename rcar_du_plane_(init|register) to rcar_du_planes_*

The functions initialize or register all planes, rename them
accordingly.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

drivers/gpu/drm/rcar-du/rcar_du_kms.c

@@ -174,7 +174,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
 	rcdu->ddev->mode_config.max_height = 2047;
 	rcdu->ddev->mode_config.funcs = &rcar_du_mode_config_funcs;
 
-	ret = rcar_du_plane_init(rcdu);
+	ret = rcar_du_planes_init(rcdu);
 	if (ret < 0)
 		return ret;
 
@@ -215,7 +215,7 @@ int rcar_du_modeset_init(struct rcar_du_device *rcdu)
 		encoder->possible_clones = 1 << 0;
 	}
 
-	ret = rcar_du_plane_register(rcdu);
+	ret = rcar_du_planes_register(rcdu);
 	if (ret < 0)
 		return ret;
 

drivers/gpu/drm/rcar-du/rcar_du_plane.c

@@ -435,7 +435,7 @@ static const uint32_t formats[] = {
 	DRM_FORMAT_NV16,
 };
 
-int rcar_du_plane_init(struct rcar_du_device *rcdu)
+int rcar_du_planes_init(struct rcar_du_device *rcdu)
 {
 	unsigned int i;
 
@@ -475,7 +475,7 @@ int rcar_du_plane_init(struct rcar_du_device *rcdu)
 	return 0;
 }
 
-int rcar_du_plane_register(struct rcar_du_device *rcdu)
+int rcar_du_planes_register(struct rcar_du_device *rcdu)
 {
 	unsigned int i;
 	int ret;

drivers/gpu/drm/rcar-du/rcar_du_plane.h

@@ -67,8 +67,9 @@ struct rcar_du_planes {
 	struct drm_property *zpos;
 };
 
-int rcar_du_plane_init(struct rcar_du_device *rcdu);
-int rcar_du_plane_register(struct rcar_du_device *rcdu);
+int rcar_du_planes_init(struct rcar_du_device *rcdu);
+int rcar_du_planes_register(struct rcar_du_device *rcdu);
+
 void rcar_du_plane_setup(struct rcar_du_plane *plane);
 void rcar_du_plane_update_base(struct rcar_du_plane *plane);
 void rcar_du_plane_compute_base(struct rcar_du_plane *plane,