drm_edp_backlight_disable
EXPORT_SYMBOL(drm_edp_backlight_disable);
drm_edp_backlight_disable(bl->aux, &bl->info);
drm_edp_backlight_disable(&intel_dp->aux, &panel->backlight.edp.vesa.info);
ret = drm_edp_backlight_disable(aux, &backlight->edp_info);
int drm_edp_backlight_disable(struct drm_dp_aux *aux, const struct drm_edp_backlight_info *bl);