usb: host: xhci-plat: add xhci_plat_start()

Some platforms (such as the Renesas R-Car) need to initialize some specific
registers after xhci driver calls usb_add_hcd() and before the driver calls
xhci_run(). So, this patch adds the xhci_plat_start() function.

Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 39c367393eed..29d8adb5c8d1 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -37,6 +37,11 @@ static int xhci_plat_setup(struct usb_hcd *hcd)
         return xhci_gen_setup(hcd, xhci_plat_quirks);
 }
 
+static int xhci_plat_start(struct usb_hcd *hcd)
+{
+        return xhci_run(hcd);
+}
+
 static const struct hc_driver xhci_plat_xhci_driver = {
         .description =          "xhci-hcd",
         .product_desc =         "xHCI Host Controller",
@@ -52,7 +57,7 @@ static const struct hc_driver xhci_plat_xhci_driver = {
          * basic lifecycle operations
          */
         .reset =                xhci_plat_setup,
-        .start =                xhci_run,
+        .start =                xhci_plat_start,
         .stop =                 xhci_stop,
         .shutdown =             xhci_shutdown,