drm_edp_backlight_set_level
ret = drm_edp_backlight_set_level(&sc->sc_aux,
EXPORT_SYMBOL(drm_edp_backlight_set_level);
ret = drm_edp_backlight_set_level(aux, bl, level);
ret = drm_edp_backlight_set_level(bl->aux, &bl->info, brightness);
drm_edp_backlight_set_level(&intel_dp->aux, &panel->backlight.edp.vesa.info, level);
int drm_edp_backlight_set_level(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl,