drm: rcar-du: Let core take care of normalizing the zpos
Set the drm_mode_config->normalize_zpos and call drm_atomic_helper_check() from rcar_du_atomic_check() instead of re implementing the function locally. Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com> CC: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: NTomi Valkeinen <tomi.valkeinen@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180321102029.15248-6-peter.ujfalusi@ti.com
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