sun4i_frontend_exit  653 drivers/gpu/drm/sun4i/sun4i_backend.c 		sun4i_frontend_exit(frontend);
sun4i_frontend_exit  120 drivers/gpu/drm/sun4i/sun4i_frontend.c EXPORT_SYMBOL(sun4i_frontend_exit);
sun4i_frontend_exit  143 drivers/gpu/drm/sun4i/sun4i_frontend.h void sun4i_frontend_exit(struct sun4i_frontend *frontend);