mudbugos/chromeos-dwc2-glue.patch

diff -rup linux-4.9.95-orig/arch/arm/boot/dts/rk3288.dtsi linux-4.9.95/arch/arm/boot/dts/rk3288.dtsi
--- linux-4.9.95-orig/arch/arm/boot/dts/rk3288.dtsi	2018-04-20 09:21:08.000000000 +0300
+++ linux-4.9.95/arch/arm/boot/dts/rk3288.dtsi	2018-04-21 17:56:26.360024274 +0300
@@ -582,6 +582,9 @@
 		dr_mode = "host";
 		phys = <&usbphy2>;
 		phy-names = "usb2-phy";
+		resets = <&cru SRST_USBHOST1_PHY>;
+		reset-names = "phy-full-reset";
+		snps,need-phy-full-reset-on-wake;
 		status = "disabled";
 	};
 
diff -rup linux-4.9.95-orig/arch/arm/boot/dts/rk3288-veyron.dtsi linux-4.9.95/arch/arm/boot/dts/rk3288-veyron.dtsi
--- linux-4.9.95-orig/arch/arm/boot/dts/rk3288-veyron.dtsi	2018-04-20 09:21:08.000000000 +0300
+++ linux-4.9.95/arch/arm/boot/dts/rk3288-veyron.dtsi	2018-04-21 17:47:25.796011427 +0300
@@ -429,6 +429,7 @@
 
 &usb_host1 {
 	status = "okay";
+	snps,need-phy-for-wake;
 };
 
 &usb_otg {
@@ -437,6 +438,7 @@
 	assigned-clocks = <&cru SCLK_USBPHY480M_SRC>;
 	assigned-clock-parents = <&usbphy0>;
 	dr_mode = "host";
+	snps,need-phy-for-wake;
 };
 
 &vopb {
diff -rup linux-4.9.95-orig/drivers/base/dd.c linux-4.9.95/drivers/base/dd.c
--- linux-4.9.95-orig/drivers/base/dd.c	2018-04-20 09:21:08.000000000 +0300
+++ linux-4.9.95/drivers/base/dd.c	2018-04-21 13:01:30.280037034 +0300
@@ -523,6 +523,9 @@ int driver_probe_device(struct device_dr
 
 bool driver_allows_async_probing(struct device_driver *drv)
 {
+	if (drv->async_probe)
+		return true;
+
 	switch (drv->probe_type) {
 	case PROBE_PREFER_ASYNCHRONOUS:
 		return true;
diff -rup linux-4.9.95-orig/drivers/usb/common/common.c linux-4.9.95/drivers/usb/common/common.c
--- linux-4.9.95-orig/drivers/usb/common/common.c	2018-04-20 09:21:08.000000000 +0300
+++ linux-4.9.95/drivers/usb/common/common.c	2018-04-21 13:36:51.184087441 +0300
@@ -105,6 +105,30 @@ static const char *const usb_dr_modes[]
 	[USB_DR_MODE_OTG]		= "otg",
 };
 
+/**
+ * of_usb_get_dr_mode - Get dual role mode for given device_node
+ * @np:	Pointer to the given device_node
+ *
+ * The function gets phy interface string from property 'dr_mode',
+ * and returns the correspondig enum usb_dr_mode
+ */
+enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
+{
+	const char *dr_mode;
+	int err, i;
+
+	err = of_property_read_string(np, "dr_mode", &dr_mode);
+	if (err < 0)
+		return USB_DR_MODE_UNKNOWN;
+
+	for (i = 0; i < ARRAY_SIZE(usb_dr_modes); i++)
+		if (!strcmp(dr_mode, usb_dr_modes[i]))
+			return i;
+
+	return USB_DR_MODE_UNKNOWN;
+}
+EXPORT_SYMBOL_GPL(of_usb_get_dr_mode);
+
 static enum usb_dr_mode usb_get_dr_mode_from_string(const char *str)
 {
 	int ret;
diff -rup linux-4.9.95-orig/drivers/usb/core/hub.c linux-4.9.95/drivers/usb/core/hub.c
--- linux-4.9.95-orig/drivers/usb/core/hub.c	2018-04-20 09:21:08.000000000 +0300
+++ linux-4.9.95/drivers/usb/core/hub.c	2018-04-21 17:58:20.456026986 +0300
@@ -3063,13 +3063,14 @@ static int usb_disable_remote_wakeup(str
 }
 
 /* Count of wakeup-enabled devices at or below udev */
-static unsigned wakeup_enabled_descendants(struct usb_device *udev)
+unsigned usb_wakeup_enabled_descendants(struct usb_device *udev)
 {
 	struct usb_hub *hub = usb_hub_to_struct_hub(udev);
 
 	return udev->do_remote_wakeup +
 			(hub ? hub->wakeup_enabled_descendants : 0);
 }
+EXPORT_SYMBOL_GPL(usb_wakeup_enabled_descendants);
 
 /*
  * usb_port_suspend - suspend a usb device's upstream port
@@ -3178,7 +3179,7 @@ int usb_port_suspend(struct usb_device *
 	 * Therefore we will turn on the suspend feature if udev or any of its
 	 * descendants is enabled for remote wakeup.
 	 */
-	else if (PMSG_IS_AUTO(msg) || wakeup_enabled_descendants(udev) > 0)
+	else if (PMSG_IS_AUTO(msg) || usb_wakeup_enabled_descendants(udev) > 0)
 		status = set_port_feature(hub->hdev, port1,
 				USB_PORT_FEAT_SUSPEND);
 	else {
@@ -3581,7 +3582,7 @@ static int hub_suspend(struct usb_interf
 		}
 		if (udev)
 			hub->wakeup_enabled_descendants +=
-					wakeup_enabled_descendants(udev);
+					usb_wakeup_enabled_descendants(udev);
 	}
 
 	if (hdev->do_remote_wakeup && hub->quirk_check_port_auto_suspend) {
diff -rup linux-4.9.95-orig/include/linux/device.h linux-4.9.95/include/linux/device.h
--- linux-4.9.95-orig/include/linux/device.h	2018-04-20 09:21:08.000000000 +0300
+++ linux-4.9.95/include/linux/device.h	2018-04-21 13:06:59.172044851 +0300
@@ -270,6 +270,7 @@ struct device_driver {
 
 	bool suppress_bind_attrs;	/* disables bind/unbind via sysfs */
 	enum probe_type probe_type;
+	bool async_probe;
 
 	const struct of_device_id	*of_match_table;
 	const struct acpi_device_id	*acpi_match_table;
diff -rup linux-4.9.95-orig/include/linux/of.h linux-4.9.95/include/linux/of.h
--- linux-4.9.95-orig/include/linux/of.h	2018-04-20 09:21:08.000000000 +0300
+++ linux-4.9.95/include/linux/of.h	2018-04-21 18:03:18.492034069 +0300
@@ -521,6 +521,8 @@ const char *of_prop_next_string(struct p
 
 bool of_console_check(struct device_node *dn, char *name, int index);
 
+enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
+
 #else /* CONFIG_OF */
 
 static inline void of_core_init(void)
diff -rup linux-4.9.95-orig/include/linux/usb/hcd.h linux-4.9.95/include/linux/usb/hcd.h
--- linux-4.9.95-orig/include/linux/usb/hcd.h	2018-04-20 09:21:08.000000000 +0300
+++ linux-4.9.95/include/linux/usb/hcd.h	2018-04-21 18:02:33.620033003 +0300
@@ -640,6 +640,7 @@ extern wait_queue_head_t usb_kill_urb_qu
 #define usb_endpoint_out(ep_dir)	(!((ep_dir) & USB_DIR_IN))
 
 #ifdef CONFIG_PM
+extern unsigned usb_wakeup_enabled_descendants(struct usb_device *udev);
 extern void usb_root_hub_lost_power(struct usb_device *rhdev);
 extern int hcd_bus_suspend(struct usb_device *rhdev, pm_message_t msg);
 extern int hcd_bus_resume(struct usb_device *rhdev, pm_message_t msg);