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