Merge tag 'usb-for-v3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-next

Felipe writes:

usb: patches for v3.10 merge window

Here is the big Gadget & PHY pull request. Many of us have
been really busy lately getting multiple drivers to a better
position.

Since this pull request is so large, I will divide it in sections
so it's easier to grasp what's included.

- cleanups:
	. UDC drivers no longer touch gadget->dev, that's now udc-core
		responsibility
	. Many more UDC drivers converted to usb_gadget_map/unmap_request()
	. UDC drivers no longer initialize DMA-related fields from gadget's
		device structure
	. UDC drivers don't touch gadget.dev.driver directly
	. UDC drivers don't assign gadget.dev.release directly
	. Removal of some unused DMA_ADDR_INVALID
	. Introduction of CONFIG_USB_PHY
	. All phy drivers have been moved to drivers/usb/phy and renamed to
		a common naming scheme
	. Fix PHY layer so it never returns a NULL pointer, also fix all
		callers to avoid using IS_ERR_OR_NULL()
	. Sparse fixes all over the place
	. drivers/usb/otg/ has been deleted
	. Marvel drivers (mv_udc, ehci-mv, mv_otg and mv_u3d) improved clock
		usage

- new features:
	. UDC core now provides a generic way for tracking and reporting
		UDC's state (not attached, resuming, suspended, addressed,
		default, etc)
	. twl4030-usb learned that it shouldn't be enabled during init
	. Full DT support for DWC3 has been implemented
	. ab8500-usb learned about pinctrl framework
	. nop PHY learned about DeviceTree and regulators
	. DWC3 learned about suspend/resume
	. DWC3 can now be compiled in host-only and gadget-only (as well as
		DRD) configurations
	. UVC now enables streaming endpoint based on negotiated speed
	. isp1301 now implements the PHY API properly
	. configfs-based interface for gadget drivers which will lead to
		the removal of all code which just combines functions together
		to build functional gadget drivers.
	. f_serial and f_obex were converted to new configfs interface while
		maintaining old interface around.

- non-critical fixes:
	. UVC gadget driver got fixes for Endpoint usage and stream calculation
	. ab8500-usb fixed unbalanced clock and regulator API usage
	. twl4030-usb got a fix for when OMAP3 is booted with cable connected
	. fusb300_udc got a fix for DMA usage
	. UVC got fixes for two assertions of the USB Video Class Compliance
		specification revision 1.1
	. build warning issues caused by recent addition of __must_check to
		regulator API

These are all changes which deserve a mention, all other changes are related
to these one or minor spelling fixes and other similar tasks.

Signed-of-by: Felipe Balbi <balbi@ti.com>

drivers/usb/gadget/g_ffs.c

@@ -13,7 +13,6 @@
 #define pr_fmt(fmt) "g_ffs: " fmt
 
 #include <linux/module.h>
-
 /*
  * kbuild is not very cooperative with respect to linking separately
  * compiled library objects into one module.  So for now we won't use
@@ -38,13 +37,16 @@
 #  include "u_ether.c"
 
 static u8 gfs_hostaddr[ETH_ALEN];
+static struct eth_dev *the_dev;
 #  ifdef CONFIG_USB_FUNCTIONFS_ETH
-static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN]);
+static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
+		struct eth_dev *dev);
 #  endif
 #else
-#  define gether_cleanup() do { } while (0)
-#  define gether_setup(gadget, hostaddr)   ((int)0)
+#  define the_dev	NULL
+#  define gether_cleanup(dev) do { } while (0)
 #  define gfs_hostaddr NULL
+struct eth_dev;
 #endif
 
 #include "f_fs.c"
@@ -137,7 +139,8 @@ static struct usb_gadget_strings *gfs_dev_strings[] = {
 
 struct gfs_configuration {
 	struct usb_configuration c;
-	int (*eth)(struct usb_configuration *c, u8 *ethaddr);
+	int (*eth)(struct usb_configuration *c, u8 *ethaddr,
+			struct eth_dev *dev);
 } gfs_configurations[] = {
 #ifdef CONFIG_USB_FUNCTIONFS_RNDIS
 	{
@@ -346,10 +349,13 @@ static int gfs_bind(struct usb_composite_dev *cdev)
 
 	if (missing_funcs)
 		return -ENODEV;
-
-	ret = gether_setup(cdev->gadget, gfs_hostaddr);
-	if (unlikely(ret < 0))
+#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS
+	the_dev = gether_setup(cdev->gadget, gfs_hostaddr);
+#endif
+	if (IS_ERR(the_dev)) {
+		ret = PTR_ERR(the_dev);
 		goto error_quick;
+	}
 	gfs_ether_setup = true;
 
 	ret = usb_string_ids_tab(cdev, gfs_strings);
@@ -386,7 +392,7 @@ error_unbind:
 	for (i = 0; i < func_num; i++)
 		functionfs_unbind(ffs_tab[i].ffs_data);
 error:
-	gether_cleanup();
+	gether_cleanup(the_dev);
 error_quick:
 	gfs_ether_setup = false;
 	return ret;
@@ -410,7 +416,7 @@ static int gfs_unbind(struct usb_composite_dev *cdev)
 	 * do...?
 	 */
 	if (gfs_ether_setup)
-		gether_cleanup();
+		gether_cleanup(the_dev);
 	gfs_ether_setup = false;
 
 	for (i = func_num; i--; )
@@ -440,7 +446,7 @@ static int gfs_do_config(struct usb_configuration *c)
 	}
 
 	if (gc->eth) {
-		ret = gc->eth(c, gfs_hostaddr);
+		ret = gc->eth(c, gfs_hostaddr, the_dev);
 		if (unlikely(ret < 0))
 			return ret;
 	}
@@ -469,11 +475,12 @@ static int gfs_do_config(struct usb_configuration *c)
 
 #ifdef CONFIG_USB_FUNCTIONFS_ETH
 
-static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN])
+static int eth_bind_config(struct usb_configuration *c, u8 ethaddr[ETH_ALEN],
+		struct eth_dev *dev)
 {
 	return can_support_ecm(c->cdev->gadget)
-		? ecm_bind_config(c, ethaddr)
-		: geth_bind_config(c, ethaddr);
+		? ecm_bind_config(c, ethaddr, dev)
+		: geth_bind_config(c, ethaddr, dev);
 }
 
 #endif