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, 3 deletions

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 3ba27118adc..a0adcac3da0 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -507,7 +507,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
         case DeviceRequest | USB_REQ_GET_DESCRIPTOR:
                 switch (wValue & 0xff00) {
                 case USB_DT_DEVICE << 8:
-                        switch (hcd->driver->flags & HCD_MASK) {
+                        switch (hcd->speed) {
                         case HCD_USB3:
                                 bufp = usb3_rh_dev_descriptor;
                                 break;
@@ -525,7 +525,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
                                 patch_protocol = 1;
                         break;
                 case USB_DT_CONFIG << 8:
-                        switch (hcd->driver->flags & HCD_MASK) {
+                        switch (hcd->speed) {
                         case HCD_USB3:
                                 bufp = ss_rh_config_descriptor;
                                 len = sizeof ss_rh_config_descriptor;
@@ -2216,6 +2216,7 @@ struct usb_hcd *usb_create_hcd (const struct hc_driver *driver,
 #endif
 
         hcd->driver = driver;
+        hcd->speed = driver->flags & HCD_MASK;
         hcd->product_desc = (driver->product_desc) ? driver->product_desc :
                         "USB Host Controller";
         return hcd;
@@ -2325,7 +2326,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
         }
         hcd->self.root_hub = rhdev;
 
-        switch (hcd->driver->flags & HCD_MASK) {
+        switch (hcd->speed) {
         case HCD_USB11:
                 rhdev->speed = USB_SPEED_FULL;
                 break;