Merge tag 'usb-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

USB: changes for v5.10 merge window

Most of changes are on dwc3 (38.8%) with cdns3 falling close
behind (24.1%).

The biggest changes here are a series of non-critical fixes to corner
cases on dwc3, produced by Thinh N, and a series of major improvements
to cdns3 produced by Peter C.

We also have the traditional set of new device support (Intel Keem
Bay, Hikey 970) on dwc3. A series of sparse/coccinelle and checkpatch
fixes on dwc3 by yours truly and a set of minor changes all over the
stack.

* tag 'usb-for-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb: (117 commits)
  usb: dwc2: Fix INTR OUT transfers in DDMA mode.
  usb: dwc2: don't use ID/Vbus detection if usb-role-switch on STM32MP15 SoCs
  usb: dwc2: override PHY input signals with usb role switch support
  dt-bindings: usb: dwc2: add optional usb-role-switch property
  usb: dwc3: of-simple: Add compatible string for Intel Keem Bay platform
  dt-bindings: usb: Add Intel Keem Bay USB controller bindings
  usb: dwc3: gadget: Support up to max stream id
  usb: dwc3: gadget: Return early if no TRB update
  usb: dwc3: gadget: Keep TRBs in request order
  usb: dwc3: gadget: Revise setting IOC when no TRB left
  usb: dwc3: gadget: Look ahead when setting IOC
  usb: dwc3: gadget: Allow restarting a transfer
  usb: bdc: remove duplicated error message
  usb: dwc3: Stop active transfers before halting the controller
  usb: cdns3: gadget: enlarge the TRB ring length
  usb: cdns3: gadget: sg_support is only for DEV_VER_V2 or above
  usb: cdns3: gadget: need to handle sg case for workaround 2 case
  usb: cdns3: gadget: handle sg list use case at completion correctly
  usb: cdns3: gadget: add CHAIN and ISP bit for sg list use case
  usb: cdns3: gadget: improve the dump TRB operation at cdns3_ep_run_transfer
  ...

1 files changed, 21 insertions, 6 deletions

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 52ce1f6b8f83..e7351d64f11f 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -436,6 +436,7 @@ struct usb_gadget {
 };
 #define work_to_gadget(w)	(container_of((w), struct usb_gadget, work))
 
+/* Interface to the device model */
 static inline void set_gadget_data(struct usb_gadget *gadget, void *data)
 	{ dev_set_drvdata(&gadget->dev, data); }
 static inline void *get_gadget_data(struct usb_gadget *gadget)
@@ -444,6 +445,26 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev)
 {
 	return container_of(dev, struct usb_gadget, dev);
 }
+static inline struct usb_gadget *usb_get_gadget(struct usb_gadget *gadget)
+{
+	get_device(&gadget->dev);
+	return gadget;
+}
+static inline void usb_put_gadget(struct usb_gadget *gadget)
+{
+	put_device(&gadget->dev);
+}
+extern void usb_initialize_gadget(struct device *parent,
+		struct usb_gadget *gadget, void (*release)(struct device *dev));
+extern int usb_add_gadget(struct usb_gadget *gadget);
+extern void usb_del_gadget(struct usb_gadget *gadget);
+
+/* Legacy device-model interface */
+extern int usb_add_gadget_udc_release(struct device *parent,
+		struct usb_gadget *gadget, void (*release)(struct device *dev));
+extern int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget);
+extern void usb_del_gadget_udc(struct usb_gadget *gadget);
+extern char *usb_get_gadget_udc_name(void);
 
 /* iterates the non-control endpoints; 'tmp' is a struct usb_ep pointer */
 #define gadget_for_each_ep(tmp, gadget) \
@@ -735,12 +756,6 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver);
  */
 int usb_gadget_unregister_driver(struct usb_gadget_driver *driver);
 
-extern int usb_add_gadget_udc_release(struct device *parent,
-		struct usb_gadget *gadget, void (*release)(struct device *dev));
-extern int usb_add_gadget_udc(struct device *parent, struct usb_gadget *gadget);
-extern void usb_del_gadget_udc(struct usb_gadget *gadget);
-extern char *usb_get_gadget_udc_name(void);
-
 /*-------------------------------------------------------------------------*/
 
 /* utility to simplify dealing with string descriptors */