[PATCH v3 04/20] usb: xhci: add a platform-private field

[Gregory CLEMENT <gregory.clement@free-electrons.com>]

This patch adds an xhci->priv field for private use by xHCI platform
drivers. This field was present for OHCI and EHCI and it was not
needed until now for xHCI. With the introduction of the clock support,
then a private field will be useful, so let's mimic what have been
done for the other HCI.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
---
 drivers/usb/host/xhci.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index d280e9213d08..054017f66246 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1584,6 +1584,9 @@ 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));
 };
 
 /* convert between an HCD pointer and the corresponding EHCI_HCD */
-- 
1.8.1.2