3 files changed, 29 insertions, 16 deletions

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 3d3918a8d5fb..4c5c6972124a 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -120,6 +120,8 @@ static const struct property_entry dwc3_pci_intel_properties[] = {
 static const struct property_entry dwc3_pci_mrfld_properties[] = {
 	PROPERTY_ENTRY_STRING("dr_mode", "otg"),
 	PROPERTY_ENTRY_STRING("linux,extcon-name", "mrfld_bcove_pwrsrc"),
+	PROPERTY_ENTRY_BOOL("snps,dis_u3_susphy_quirk"),
+	PROPERTY_ENTRY_BOOL("snps,dis_u2_susphy_quirk"),
 	PROPERTY_ENTRY_BOOL("linux,sysdev_is_parent"),
 	{}
 };
diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c
index 846a47be6df7..3de291ab951a 100644
--- a/drivers/usb/dwc3/dwc3-qcom.c
+++ b/drivers/usb/dwc3/dwc3-qcom.c
@@ -244,6 +244,9 @@ static int dwc3_qcom_interconnect_init(struct dwc3_qcom *qcom)
 	struct device *dev = qcom->dev;
 	int ret;
 
+	if (has_acpi_companion(dev))
+		return 0;
+
 	qcom->icc_path_ddr = of_icc_get(dev, "usb-ddr");
 	if (IS_ERR(qcom->icc_path_ddr)) {
 		dev_err(dev, "failed to get usb-ddr path: %ld\n",
@@ -358,8 +361,10 @@ static int dwc3_qcom_suspend(struct dwc3_qcom *qcom)
 	if (ret)
 		dev_warn(qcom->dev, "failed to disable interconnect: %d\n", ret);
 
+	if (device_may_wakeup(qcom->dev))
+		dwc3_qcom_enable_interrupts(qcom);
+
 	qcom->is_suspended = true;
-	dwc3_qcom_enable_interrupts(qcom);
 
 	return 0;
 }
@@ -372,7 +377,8 @@ static int dwc3_qcom_resume(struct dwc3_qcom *qcom)
 	if (!qcom->is_suspended)
 		return 0;
 
-	dwc3_qcom_disable_interrupts(qcom);
+	if (device_may_wakeup(qcom->dev))
+		dwc3_qcom_disable_interrupts(qcom);
 
 	for (i = 0; i < qcom->num_clocks; i++) {
 		ret = clk_prepare_enable(qcom->clks[i]);
@@ -650,16 +656,19 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev)
 	ret = of_platform_populate(np, NULL, NULL, dev);
 	if (ret) {
 		dev_err(dev, "failed to register dwc3 core - %d\n", ret);
-		return ret;
+		goto node_put;
 	}
 
 	qcom->dwc3 = of_find_device_by_node(dwc3_np);
 	if (!qcom->dwc3) {
+		ret = -ENODEV;
 		dev_err(dev, "failed to get dwc3 platform device\n");
-		return -ENODEV;
 	}
 
-	return 0;
+node_put:
+	of_node_put(dwc3_np);
+
+	return ret;
 }
 
 static struct platform_device *
@@ -938,6 +947,8 @@ static const struct dwc3_acpi_pdata sdm845_acpi_urs_pdata = {
 static const struct acpi_device_id dwc3_qcom_acpi_match[] = {
 	{ "QCOM2430", (unsigned long)&sdm845_acpi_pdata },
 	{ "QCOM0304", (unsigned long)&sdm845_acpi_urs_pdata },
+	{ "QCOM0497", (unsigned long)&sdm845_acpi_urs_pdata },
+	{ "QCOM04A6", (unsigned long)&sdm845_acpi_pdata },
 	{ },
 };
 MODULE_DEVICE_TABLE(acpi, dwc3_qcom_acpi_match);
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index aebcf8ec0716..c7ef218e7a8c 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -783,8 +783,6 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
 
 	trace_dwc3_gadget_ep_disable(dep);
 
-	dwc3_remove_requests(dwc, dep);
-
 	/* make sure HW endpoint isn't stalled */
 	if (dep->flags & DWC3_EP_STALL)
 		__dwc3_gadget_ep_set_halt(dep, 0, false);
@@ -793,16 +791,18 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
 	reg &= ~DWC3_DALEPENA_EP(dep->number);
 	dwc3_writel(dwc->regs, DWC3_DALEPENA, reg);
 
-	dep->stream_capable = false;
-	dep->type = 0;
-	dep->flags = 0;
-
 	/* Clear out the ep descriptors for non-ep0 */
 	if (dep->number > 1) {
 		dep->endpoint.comp_desc = NULL;
 		dep->endpoint.desc = NULL;
 	}
 
+	dwc3_remove_requests(dwc, dep);
+
+	dep->stream_capable = false;
+	dep->type = 0;
+	dep->flags = 0;
+
 	return 0;
 }
 
@@ -1617,7 +1617,7 @@ static int __dwc3_gadget_ep_queue(struct dwc3_ep *dep, struct dwc3_request *req)
 {
 	struct dwc3		*dwc = dep->dwc;
 
-	if (!dep->endpoint.desc || !dwc->pullups_connected) {
+	if (!dep->endpoint.desc || !dwc->pullups_connected || !dwc->connected) {
 		dev_err(dwc->dev, "%s: can't queue to disabled endpoint\n",
 				dep->name);
 		return -ESHUTDOWN;
@@ -2083,7 +2083,7 @@ static void __dwc3_gadget_set_speed(struct dwc3 *dwc)
 	u32			reg;
 
 	speed = dwc->gadget_max_speed;
-	if (speed > dwc->maximum_speed)
+	if (speed == USB_SPEED_UNKNOWN || speed > dwc->maximum_speed)
 		speed = dwc->maximum_speed;
 
 	if (speed == USB_SPEED_SUPER_PLUS &&
@@ -2247,6 +2247,7 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on)
 	if (!is_on) {
 		u32 count;
 
+		dwc->connected = false;
 		/*
 		 * In the Synopsis DesignWare Cores USB3 Databook Rev. 3.30a
 		 * Section 4.1.8 Table 4-7, it states that for a device-initiated
@@ -2271,7 +2272,6 @@ static int dwc3_gadget_pullup(struct usb_gadget *g, int is_on)
 			dwc->ev_buf->lpos = (dwc->ev_buf->lpos + count) %
 						dwc->ev_buf->length;
 		}
-		dwc->connected = false;
 	} else {
 		__dwc3_gadget_start(dwc);
 	}
@@ -2523,6 +2523,7 @@ static void dwc3_gadget_set_ssp_rate(struct usb_gadget *g,
 	unsigned long		flags;
 
 	spin_lock_irqsave(&dwc->lock, flags);
+	dwc->gadget_max_speed = USB_SPEED_SUPER_PLUS;
 	dwc->gadget_ssp_rate = rate;
 	spin_unlock_irqrestore(&dwc->lock, flags);
 }
@@ -3321,8 +3322,6 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
 {
 	u32			reg;
 
-	dwc->connected = true;
-
 	/*
 	 * WORKAROUND: DWC3 revisions <1.88a have an issue which
 	 * would cause a missing Disconnect Event if there's a
@@ -3362,6 +3361,7 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
 	 * transfers."
 	 */
 	dwc3_stop_active_transfers(dwc);
+	dwc->connected = true;
 
 	reg = dwc3_readl(dwc->regs, DWC3_DCTL);
 	reg &= ~DWC3_DCTL_TSTCTRL_MASK;