diff --git a/linux-5.10/hi3516dv300_patch/hi3516dv300.patch b/linux-5.10/hi3516dv300_patch/hi3516dv300.patch
old mode 100644
new mode 100755
index 89b6ba05503a5151a355f324ff7a90c0ef3426e1..fea871666a7d71a4150af59b2f71d98e28bee35c
--- a/linux-5.10/hi3516dv300_patch/hi3516dv300.patch
+++ b/linux-5.10/hi3516dv300_patch/hi3516dv300.patch
@@ -943,7 +943,7 @@ index 000000000..85a6c5c14
 +			interrupts = <0 27 4>;
 +			interrupt-names = "peripheral";
 +			maximum-speed = "high-speed";
-+			dr_mode = "peripheral";
++			dr_mode = "otg";
 +		};
 +#endif
 +		gpio_chip0: gpio_chip@120d0000 {
@@ -53700,6 +53700,22 @@ index 95a9bae72..ad951a1a1 100644
  		message = "hub doesn't have any ports!";
  		ret = -ENODEV;
  		goto fail;
+diff --git a/drivers/usb/core/notify.c b/drivers/usb/core/notify.c
+index e6143663778f..b507a25ce115 100644
+--- a/drivers/usb/core/notify.c
++++ b/drivers/usb/core/notify.c
+@@ -66,3 +66,11 @@ void usb_notify_remove_bus(struct usb_bus *ubus)
+ {
+ 	blocking_notifier_call_chain(&usb_notifier_list, USB_BUS_REMOVE, ubus);
+ }
++void usb_notify_online_status(bool online)
++{
++	if (online) {
++		blocking_notifier_call_chain(&usb_notifier_list, USB_GADGET_ADD, NULL);
++	} else {
++		blocking_notifier_call_chain(&usb_notifier_list, USB_GADGET_REMOVE, NULL);
++	}
++}
 diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
 index ae86da0dc..9abca9a8a 100644
 --- a/drivers/usb/dwc3/Makefile
@@ -54794,7 +54810,28 @@ index b75fe568096f..c0f71fd32c77
  	for (epnum = 0; epnum < total; epnum++) {
  		int			ret;
  
-@@ -3892,6 +4017,7 @@ int dwc3_gadget_init(struct dwc3 *dwc)
+@@ -3640,6 +3765,7 @@ static void dwc3_gadget_interrupt(struct dwc3 *dwc,
+ 		break;
+ 	case DWC3_DEVICE_EVENT_CONNECT_DONE:
+ 		dwc3_gadget_conndone_interrupt(dwc);
++		usb_notify_online_status(true);
+ 		break;
+ 	case DWC3_DEVICE_EVENT_WAKEUP:
+ 		dwc3_gadget_wakeup_interrupt(dwc);
+@@ -3661,9 +3787,11 @@ static void dwc3_gadget_interrupt(struct dwc3 *dwc,
+ 			 * Ignore suspend event until the gadget enters into
+ 			 * USB_STATE_CONFIGURED state.
+ 			 */
+-			if (dwc->gadget->state >= USB_STATE_CONFIGURED)
++			if (dwc->gadget->state >= USB_STATE_CONFIGURED) {
+ 				dwc3_gadget_suspend_interrupt(dwc,
+ 						event->event_info);
++				usb_notify_online_status(false);
++			}	
+ 		}
+ 		break;
+ 	case DWC3_DEVICE_EVENT_SOF:
+@@ -3892,6 +4020,7 @@ int dwc3_gadget_init(struct dwc3 *dwc)
  		goto err3;
  	}
  
@@ -58524,6 +58561,22 @@ index a14797760..2c35430e2 100644
 +
  #endif /*  __ASSEMBLY__ */
  #endif /* _LINUX_TYPES_H */
+diff --git a/include/linux/usb.h b/include/linux/usb.h
+index d6a41841b93e..de3232ee5bf2 100644
+--- a/include/linux/usb.h
++++ b/include/linux/usb.h
+@@ -2019,8 +2019,11 @@ static inline int usb_translate_errors(int error_code)
+ #define USB_DEVICE_REMOVE	0x0002
+ #define USB_BUS_ADD		0x0003
+ #define USB_BUS_REMOVE		0x0004
++#define USB_GADGET_ADD		0x0005
++#define USB_GADGET_REMOVE	0x0006
+ extern void usb_register_notify(struct notifier_block *nb);
+ extern void usb_unregister_notify(struct notifier_block *nb);
++extern void usb_notify_online_status(bool online);
+ 
+ /* debugfs stuff */
+ extern struct dentry *usb_debug_root;
 diff --git a/include/uapi/linux/i2c-dev.h b/include/uapi/linux/i2c-dev.h
 index 85f8047af..3f50287f3 100644
 --- a/include/uapi/linux/i2c-dev.h