usb: Store bus type in usb_hcd, not in driver flags.

The xHCI driver essentially has both a USB 2.0 and a USB 3.0 roothub.  So
setting the HCD_USB3 bits in the hcd->driver->flags is a bit misleading.
Add a new field to usb_hcd, bcdUSB.  Store the result of
hcd->driver->flags & HCD_MASK in it.  Later, when we have the xHCI driver
register the two roothubs, we'll set the usb_hcd->bcdUSB field to HCD_USB2
for the USB 2.0 roothub, and HCD_USB3 for the USB 3.0 roothub.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 836aaa91ee15..b8bb6934f30b 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -76,6 +76,10 @@ struct usb_hcd {
         struct kref             kref;           /* reference counter */
 
         const char              *product_desc;  /* product/vendor string */
+        int                     speed;          /* Speed for this roothub.
+                                                 * May be different from
+                                                 * hcd->driver->flags & HCD_MASK
+                                                 */
         char                    irq_descr[24];  /* driver + bus # */
 
         struct timer_list       rh_timer;       /* drives root-hub polling */