drm: rcar-du: Enable alpha property on primary planes

The hardware supports alpha on all planes, and using it on the primary
plane can be useful. Don't restrict the alpha property to overlay
planes.

Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>

diff --git a/drivers/gpu/drm/rcar-du/rcar_du_plane.c b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
index 9e07758..39d5ae3 100644 (file)
--- a/drivers/gpu/drm/rcar-du/rcar_du_plane.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_plane.c
@@ -783,13 +783,14 @@ int rcar_du_planes_init(struct rcar_du_group *rgrp)
                drm_plane_helper_add(&plane->plane,
                                     &rcar_du_plane_helper_funcs);
 
+               drm_plane_create_alpha_property(&plane->plane);
+
                if (type == DRM_PLANE_TYPE_PRIMARY)
                        continue;
 
                drm_object_attach_property(&plane->plane.base,
                                           rcdu->props.colorkey,
                                           RCAR_DU_COLORKEY_NONE);
-               drm_plane_create_alpha_property(&plane->plane);
                drm_plane_create_zpos_property(&plane->plane, 1, 1, 7);
        }