--- a/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi	2019-12-28 20:11:18.831388678 +0200
+++ b/arch/arm64/boot/dts/rockchip/rk3399-rock-pi-4.dtsi	2019-12-28 20:11:33.335365912 +0200
@@ -735,7 +735,7 @@
 
 &usbdrd_dwc3_0 {
 	status = "okay";
-	dr_mode = "otg";
+	dr_mode = "host";
 };
 
 &usbdrd3_1 {