USB: xhci: Allocate and address USB devices

xHCI needs to get a "Slot ID" from the host controller and allocate other
data structures for every USB device.  Make usb_alloc_dev() and
usb_release_dev() allocate and free these device structures.  After
setting up the xHC device structures, usb_alloc_dev() must wait for the
hardware to respond to an Enable Slot command.  usb_alloc_dev() fires off
a Disable Slot command and does not wait for it to complete.

When the USB core wants to choose an address for the device, the xHCI
driver must issue a Set Address command and wait for an event for that
command.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 005c5b264a7c..7ac12b4ffe86 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -109,6 +109,13 @@ static const struct hc_driver xhci_pci_hc_driver = {
         .shutdown =             xhci_shutdown,
 
         /*
+         * managing i/o requests and associated device resources
+         */
+        .alloc_dev =            xhci_alloc_dev,
+        .free_dev =             xhci_free_dev,
+        .address_device =       xhci_address_device,
+
+        /*
          * scheduling support
          */
         .get_frame_number =     xhci_get_frame,