usb: host: xhci: add a platform-private field

This patch adds an xhci->priv field for private use by
XHCI platform drivers. Until now none of the platform drivers
has used this private space.

Signed-off-by: Yoshihiro Shimoda <[email protected]>
Signed-off-by: Mathias Nyman <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: shimoday

drivers/usb/host/xhci.h

@@ -1656,6 +1656,9 @@ struct xhci_hcd {
 	u32			port_status_u0;
 /* Compliance Mode Timer Triggered every 2 seconds */
 #define COMP_MODE_RCVRY_MSECS 2000
+
+	/* platform-specific data -- must come last */
+	unsigned long		priv[0] __aligned(sizeof(s64));
 };
 
 /* Platform specific overrides to generic XHCI hc_driver ops */