drm_to_armada_gem
#define drm_fb_obj(fb) drm_to_armada_gem((fb)->obj[0])
struct armada_gem_object *obj = drm_to_armada_gem(gobj);
struct armada_gem_object *dobj = drm_to_armada_gem(obj);
struct armada_gem_object *dobj = drm_to_armada_gem(obj);
struct armada_gem_object *dobj = drm_to_armada_gem(obj);
return obj ? drm_to_armada_gem(obj) : NULL;