diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index f6689b731718..898c0f68e190 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1534,6 +1534,9 @@ static void dwc3_get_properties(struct dwc3 *dwc)
 	dwc->dis_split_quirk = device_property_read_bool(dev,
 				"snps,dis-split-quirk");
 
+	dwc->allow_rtsusp_on_u3 = device_property_read_bool(dev,
+				"snps,allow-rtsusp-on-u3");
+
 	dwc->lpm_nyet_threshold = lpm_nyet_threshold;
 	dwc->tx_de_emphasis = tx_de_emphasis;
 
@@ -1984,11 +1987,21 @@ static int dwc3_suspend_common(struct dwc3 *dwc, pm_message_t msg)
 {
 	unsigned long	flags;
 	u32 reg;
+	int link_state;
 
 	switch (dwc->current_dr_role) {
 	case DWC3_GCTL_PRTCAP_DEVICE:
 		if (pm_runtime_suspended(dwc->dev))
 			break;
+
+		if (dwc->connected) {
+			link_state = dwc3_gadget_get_link_state(dwc);
+			/* bus suspend case */
+			if (dwc->allow_rtsusp_on_u3 &&
+			    link_state == DWC3_LINK_STATE_U3)
+				break;
+			return -EBUSY;
+		}
 		dwc3_gadget_suspend(dwc);
 		synchronize_irq(dwc->irq_gadget);
 		dwc3_core_exit(dwc);
@@ -2045,6 +2058,9 @@ static int dwc3_resume_common(struct dwc3 *dwc, pm_message_t msg)
 
 	switch (dwc->current_dr_role) {
 	case DWC3_GCTL_PRTCAP_DEVICE:
+		/* bus resume case */
+		if (dwc->connected)
+			break;
 		ret = dwc3_core_init_for_resume(dwc);
 		if (ret)
 			return ret;
@@ -2123,9 +2139,6 @@ static int dwc3_runtime_suspend(struct device *dev)
 	struct dwc3     *dwc = dev_get_drvdata(dev);
 	int		ret;
 
-	if (dwc3_runtime_checks(dwc))
-		return -EBUSY;
-
 	ret = dwc3_suspend_common(dwc, PMSG_AUTO_SUSPEND);
 	if (ret)
 		return ret;
@@ -2160,9 +2173,15 @@ static int dwc3_runtime_resume(struct device *dev)
 static int dwc3_runtime_idle(struct device *dev)
 {
 	struct dwc3     *dwc = dev_get_drvdata(dev);
+	int		link_state;
 
 	switch (dwc->current_dr_role) {
 	case DWC3_GCTL_PRTCAP_DEVICE:
+		link_state = dwc3_gadget_get_link_state(dwc);
+		/* for bus suspend case return success */
+		if (dwc->allow_rtsusp_on_u3 && dwc->connected &&
+		    link_state == DWC3_LINK_STATE_U3)
+			goto autosuspend;
 		if (dwc3_runtime_checks(dwc))
 			return -EBUSY;
 		break;
@@ -2172,6 +2191,7 @@ static int dwc3_runtime_idle(struct device *dev)
 		break;
 	}
 
+autosuspend:
 	pm_runtime_mark_last_busy(dev);
 	pm_runtime_autosuspend(dev);
 
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 8b1295e4dcdd..33b2ccbbd963 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -1127,6 +1127,8 @@ struct dwc3_scratchpad_array {
  * @num_ep_resized: carries the current number endpoints which have had its tx
  *		    fifo resized.
  * @debug_root: root debugfs directory for this device to put its files in.
+ * @allow_rtsusp_on_u3: true if dwc3 runtime suspend is allowed during bus
+ *			suspend scenario.
  */
 struct dwc3 {
 	struct work_struct	drd_work;
@@ -1343,6 +1345,7 @@ struct dwc3 {
 	int			last_fifo_depth;
 	int			num_ep_resized;
 	struct dentry		*debug_root;
+	bool			allow_rtsusp_on_u3;
 };
 
 #define INCRX_BURST_MODE 0
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 5fd067151fbf..0797cffa2d48 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -2401,15 +2401,21 @@ static int dwc3_gadget_wakeup(struct usb_gadget *g)
 		return -EINVAL;
 	}
 
-	spin_lock_irqsave(&dwc->lock, flags);
 	if (!dwc->gadget->wakeup_armed) {
 		dev_err(dwc->dev, "not armed for remote wakeup\n");
-		spin_unlock_irqrestore(&dwc->lock, flags);
 		return -EINVAL;
 	}
-	ret = __dwc3_gadget_wakeup(dwc, true);
 
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0) {
+		pm_runtime_set_suspended(dwc->dev);
+		return ret;
+	}
+
+	spin_lock_irqsave(&dwc->lock, flags);
+	ret = __dwc3_gadget_wakeup(dwc, true);
 	spin_unlock_irqrestore(&dwc->lock, flags);
+	pm_runtime_put_noidle(dwc->dev);
 
 	return ret;
 }
@@ -2428,6 +2434,12 @@ static int dwc3_gadget_func_wakeup(struct usb_gadget *g, int intf_id)
 		return -EINVAL;
 	}
 
+	ret = pm_runtime_resume_and_get(dwc->dev);
+	if (ret < 0) {
+		pm_runtime_set_suspended(dwc->dev);
+		return ret;
+	}
+
 	spin_lock_irqsave(&dwc->lock, flags);
 	/*
 	 * If the link is in U3, signal for remote wakeup and wait for the
@@ -2438,6 +2450,7 @@ static int dwc3_gadget_func_wakeup(struct usb_gadget *g, int intf_id)
 		ret = __dwc3_gadget_wakeup(dwc, false);
 		if (ret) {
 			spin_unlock_irqrestore(&dwc->lock, flags);
+			pm_runtime_put_noidle(dwc->dev);
 			return -EINVAL;
 		}
 		dwc3_resume_gadget(dwc);
@@ -2452,6 +2465,7 @@ static int dwc3_gadget_func_wakeup(struct usb_gadget *g, int intf_id)
 		dev_err(dwc->dev, "function remote wakeup failed, ret:%d\n", ret);
 
 	spin_unlock_irqrestore(&dwc->lock, flags);
+	pm_runtime_put_noidle(dwc->dev);
 
 	return ret;
 }
@@ -2732,21 +2746,23 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on)
 	/*
 	 * Avoid issuing a runtime resume if the device is already in the
 	 * suspended state during gadget disconnect.  DWC3 gadget was already
-	 * halted/stopped during runtime suspend.
+	 * halted/stopped during runtime suspend except for bus suspend case
+	 * where we would have skipped the controller halt.
 	 */
 	if (!is_on) {
 		pm_runtime_barrier(dwc->dev);
-		if (pm_runtime_suspended(dwc->dev))
+		if (pm_runtime_suspended(dwc->dev) && !dwc->connected)
 			return 0;
 	}
 
 	/*
 	 * Check the return value for successful resume, or error.  For a
 	 * successful resume, the DWC3 runtime PM resume routine will handle
-	 * the run stop sequence, so avoid duplicate operations here.
+	 * the run stop sequence except for bus resume case, so avoid
+	 * duplicate operations here.
 	 */
 	ret = pm_runtime_get_sync(dwc->dev);
-	if (!ret || ret < 0) {
+	if ((!ret && !dwc->connected) || ret < 0) {
 		pm_runtime_put(dwc->dev);
 		if (ret < 0)
 			pm_runtime_set_suspended(dwc->dev);
@@ -4331,6 +4347,8 @@ static void dwc3_gadget_suspend_interrupt(struct dwc3 *dwc,
 	}
 
 	dwc->link_state = next;
+	pm_runtime_mark_last_busy(dwc->dev);
+	pm_request_autosuspend(dwc->dev);
 }
 
 static void dwc3_gadget_interrupt(struct dwc3 *dwc,
@@ -4718,7 +4736,15 @@ void dwc3_gadget_process_pending_events(struct dwc3 *dwc)
 {
 	if (dwc->pending_events) {
 		dwc3_interrupt(dwc->irq_gadget, dwc->ev_buf);
+		pm_runtime_put(dwc->dev);
 		dwc->pending_events = false;
 		enable_irq(dwc->irq_gadget);
+		/*
+		 * We have only stored the pending events as part
+		 * of dwc3_interrupt() above, but those events are
+		 * not yet handled. So explicitly invoke the
+		 * interrupt handler for handling those events.
+		 */
+		dwc3_thread_interrupt(dwc->irq_gadget, dwc->ev_buf);
 	}
 }
