usb: hcd: Remove USB phy if needed

This adds remove_phy flag to the HCD structure. If the flag is
set and if hcd->phy is valid, the phy is shutdown and released
whenever usb_add_hcd fails or usb_hcd_remove is called.
This can be used by the HCD drivers to auto-remove
the external USB phy when it is no longer needed.

Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index b8aba196f7f1..758ce80d085f 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -134,6 +134,7 @@ struct usb_hcd {
         unsigned                rh_registered:1;/* is root hub registered? */
         unsigned                rh_pollable:1;  /* may we poll the root hub? */
         unsigned                msix_enabled:1; /* driver has MSI-X enabled? */
+        unsigned                remove_phy:1;   /* auto-remove USB phy */
 
         /* The next flag is a stopgap, to be removed when all the HCDs
          * support the new root-hub polling mechanism. */