drm_dev_register
drm_dev_register(&sc->sc_ddev, 0);
ret = drm_dev_register(ddev, flags);
drm_dev_register(dev, adev->flags);
ret = drm_dev_register(adev->xcp_mgr->xcp[i].ddev, ent->driver_data);
ret = drm_dev_register(&apple->drm, 0);
EXPORT_SYMBOL(drm_dev_register);
ret = drm_dev_register(&dev_priv->drm, 0);
int drm_dev_register(struct drm_device *dev, unsigned long flags);
drm_dev_register(dev, rdev->flags);
ret = drm_dev_register(ddev, flags);