diff --git a/drivers/gpu/drm/panel/panel-simple.c b/drivers/gpu/drm/panel/panel-simple.c
index e0a05f366ce66541aa3b5ad3d11624475bad3c00..9b286bd4444fcc9285d1734e43f27bf511e920ba 100644
--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -827,7 +827,10 @@ static int panel_simple_probe(struct device *dev, const struct panel_desc *desc,
 		goto disable_pm_runtime;
 
 	if (!panel->base.backlight && panel->aux) {
+		pm_runtime_get_sync(dev);
 		err = drm_panel_dp_aux_backlight(&panel->base, panel->aux);
+		pm_runtime_mark_last_busy(dev);
+		pm_runtime_put_autosuspend(dev);
 		if (err)
 			goto disable_pm_runtime;
 	}