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authorValentine Barshak <valentine.barshak@cogentembedded.com>2013-12-04 01:42:21 +0400
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-12-09 06:00:51 +0400
commit103e127d1f8f985e8a662da6537ebc5e08902ee3 (patch)
treea9ae5594b47919a5bb652172abbb61c9e61d66b0 /include/linux/usb
parente5fc70d5ccc3d005bb038c0275ffdf57a34b1496 (diff)
downloadlinux-103e127d1f8f985e8a662da6537ebc5e08902ee3.tar.xz
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>
Diffstat (limited to 'include/linux/usb')
-rw-r--r--include/linux/usb/hcd.h1
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. */