5 files changed, 45 insertions, 13 deletions

diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index bbe779f640be..e14c09a45c5a 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -31,6 +31,7 @@ struct ci_hdrc_platform_data {
 #define CI_HDRC_CONTROLLER_STOPPED_EVENT	1
 	void	(*notify_event) (struct ci_hdrc *ci, unsigned event);
 	struct regulator	*reg_vbus;
+	bool			tpl_support;
 };
 
 /* Default offset of capability registers */
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index c3a61853cd13..522cafe26790 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -345,12 +345,13 @@ static inline int usb_ep_queue(struct usb_ep *ep,
  * @ep:the endpoint associated with the request
  * @req:the request being canceled
  *
- * if the request is still active on the endpoint, it is dequeued and its
+ * If the request is still active on the endpoint, it is dequeued and its
  * completion routine is called (with status -ECONNRESET); else a negative
- * error code is returned.
+ * error code is returned. This is guaranteed to happen before the call to
+ * usb_ep_dequeue() returns.
  *
- * note that some hardware can't clear out write fifos (to unlink the request
- * at the head of the queue) except as part of disconnecting from usb.  such
+ * Note that some hardware can't clear out write fifos (to unlink the request
+ * at the head of the queue) except as part of disconnecting from usb. Such
  * restrictions prevent drivers from supporting configuration changes,
  * even to configuration zero (a "chapter 9" requirement).
  */
@@ -816,6 +817,8 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
  *	Called in a context that permits sleeping.
  * @suspend: Invoked on USB suspend.  May be called in_interrupt.
  * @resume: Invoked on USB resume.  May be called in_interrupt.
+ * @reset: Invoked on USB bus reset. It is mandatory for all gadget drivers
+ *	and should be called in_interrupt.
  * @driver: Driver model state for this driver.
  *
  * Devices are disabled till a gadget driver successfully bind()s, which
@@ -873,6 +876,7 @@ struct usb_gadget_driver {
 	void			(*disconnect)(struct usb_gadget *);
 	void			(*suspend)(struct usb_gadget *);
 	void			(*resume)(struct usb_gadget *);
+	void			(*reset)(struct usb_gadget *);
 
 	/* FIXME support safe rmmod */
 	struct device_driver	driver;
@@ -1013,6 +1017,20 @@ extern void usb_gadget_set_state(struct usb_gadget *gadget,
 
 /*-------------------------------------------------------------------------*/
 
+/* utility to tell udc core that the bus reset occurs */
+extern void usb_gadget_udc_reset(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver);
+
+/*-------------------------------------------------------------------------*/
+
+/* utility to give requests back to the gadget layer */
+
+extern void usb_gadget_giveback_request(struct usb_ep *ep,
+		struct usb_request *req);
+
+
+/*-------------------------------------------------------------------------*/
+
 /* utility wrapping a simple endpoint selection policy */
 
 extern struct usb_ep *usb_ep_autoconfig(struct usb_gadget *,
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 485cd5e2100c..cd96a2bc3388 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -106,7 +106,8 @@ struct usb_hcd {
 	 * OTG and some Host controllers need software interaction with phys;
 	 * other external phys should be software-transparent
 	 */
-	struct usb_phy	*phy;
+	struct usb_phy		*usb_phy;
+	struct phy		*phy;
 
 	/* Flags that need to be manipulated atomically because they can
 	 * change while the host controller is running.  Always use
@@ -144,6 +145,7 @@ struct usb_hcd {
 	unsigned		has_tt:1;	/* Integrated TT in root hub */
 	unsigned		amd_resume_bug:1; /* AMD remote wakeup quirk */
 	unsigned		can_do_streams:1; /* HC supports streams */
+	unsigned		tpl_support:1; /* OTG & EH TPL support */
 
 	unsigned int		irq;		/* irq allocated */
 	void __iomem		*regs;		/* device memory/io */
diff --git a/include/linux/usb/of.h b/include/linux/usb/of.h
index 8c38aa26b3bb..cfe0528cdbb1 100644
--- a/include/linux/usb/of.h
+++ b/include/linux/usb/of.h
@@ -14,6 +14,7 @@
 #if IS_ENABLED(CONFIG_OF)
 enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np);
 enum usb_device_speed of_usb_get_maximum_speed(struct device_node *np);
+bool of_usb_host_tpl_support(struct device_node *np);
 #else
 static inline enum usb_dr_mode of_usb_get_dr_mode(struct device_node *np)
 {
@@ -25,6 +26,10 @@ of_usb_get_maximum_speed(struct device_node *np)
 {
 	return USB_SPEED_UNKNOWN;
 }
+static inline bool of_usb_host_tpl_support(struct device_node *np)
+{
+	return false;
+}
 #endif
 
 #if IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_USB_SUPPORT)
diff --git a/include/linux/usb/quirks.h b/include/linux/usb/quirks.h
index 55a17b188daa..9948c874e3f1 100644
--- a/include/linux/usb/quirks.h
+++ b/include/linux/usb/quirks.h
@@ -8,27 +8,27 @@
 #define __LINUX_USB_QUIRKS_H
 
 /* string descriptors must not be fetched using a 255-byte read */
-#define USB_QUIRK_STRING_FETCH_255	0x00000001
+#define USB_QUIRK_STRING_FETCH_255		BIT(0)
 
 /* device can't resume correctly so reset it instead */
-#define USB_QUIRK_RESET_RESUME		0x00000002
+#define USB_QUIRK_RESET_RESUME			BIT(1)
 
 /* device can't handle Set-Interface requests */
-#define USB_QUIRK_NO_SET_INTF		0x00000004
+#define USB_QUIRK_NO_SET_INTF			BIT(2)
 
 /* device can't handle its Configuration or Interface strings */
-#define USB_QUIRK_CONFIG_INTF_STRINGS	0x00000008
+#define USB_QUIRK_CONFIG_INTF_STRINGS		BIT(3)
 
 /* device can't be reset(e.g morph devices), don't use reset */
-#define USB_QUIRK_RESET			0x00000010
+#define USB_QUIRK_RESET				BIT(4)
 
 /* device has more interface descriptions than the bNumInterfaces count,
    and can't handle talking to these interfaces */
-#define USB_QUIRK_HONOR_BNUMINTERFACES	0x00000020
+#define USB_QUIRK_HONOR_BNUMINTERFACES		BIT(5)
 
 /* device needs a pause during initialization, after we read the device
    descriptor */
-#define USB_QUIRK_DELAY_INIT		0x00000040
+#define USB_QUIRK_DELAY_INIT			BIT(6)
 
 /*
  * For high speed and super speed interupt endpoints, the USB 2.0 and
@@ -39,6 +39,12 @@
  * Devices with this quirk report their bInterval as the result of this
  * calculation instead of the exponent variable used in the calculation.
  */
-#define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL	0x00000080
+#define USB_QUIRK_LINEAR_UFRAME_INTR_BINTERVAL	BIT(7)
+
+/* device can't handle device_qualifier descriptor requests */
+#define USB_QUIRK_DEVICE_QUALIFIER		BIT(8)
+
+/* device generates spurious wakeup, ignore remote wakeup capability */
+#define USB_QUIRK_IGNORE_REMOTE_WAKEUP		BIT(9)
 
 #endif /* __LINUX_USB_QUIRKS_H */