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-rw-r--r--drivers/usb/core/hcd.c14
-rw-r--r--include/linux/usb/hcd.h1
2 files changed, 14 insertions, 1 deletions
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 6bffb8c87bc9..7527c8e4ec64 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -44,6 +44,7 @@
#include <linux/usb.h>
#include <linux/usb/hcd.h>
+#include <linux/usb/phy.h>
#include "usb.h"
@@ -2603,7 +2604,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
*/
if ((retval = hcd_buffer_create(hcd)) != 0) {
dev_dbg(hcd->self.controller, "pool alloc failed\n");
- return retval;
+ goto err_remove_phy;
}
if ((retval = usb_register_bus(&hcd->self)) < 0)
@@ -2734,6 +2735,12 @@ err_allocate_root_hub:
usb_deregister_bus(&hcd->self);
err_register_bus:
hcd_buffer_destroy(hcd);
+err_remove_phy:
+ if (hcd->remove_phy && hcd->phy) {
+ usb_phy_shutdown(hcd->phy);
+ usb_put_phy(hcd->phy);
+ hcd->phy = NULL;
+ }
return retval;
}
EXPORT_SYMBOL_GPL(usb_add_hcd);
@@ -2806,6 +2813,11 @@ void usb_remove_hcd(struct usb_hcd *hcd)
usb_put_dev(hcd->self.root_hub);
usb_deregister_bus(&hcd->self);
hcd_buffer_destroy(hcd);
+ if (hcd->remove_phy && hcd->phy) {
+ usb_phy_shutdown(hcd->phy);
+ usb_put_phy(hcd->phy);
+ hcd->phy = NULL;
+ }
}
EXPORT_SYMBOL_GPL(usb_remove_hcd);
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. */