diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 8945abc..2aec874 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -20,6 +20,7 @@
 #include <dm/device_compat.h>
 #include <dm/devres.h>
 #include <linux/bug.h>
+#include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/list.h>