diff options
Diffstat (limited to 'drivers/usb/musb/musb_gadget.c')
| -rw-r--r-- | drivers/usb/musb/musb_gadget.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c index 2a3aee4e108..5c7b321d395 100644 --- a/drivers/usb/musb/musb_gadget.c +++ b/drivers/usb/musb/musb_gadget.c @@ -1821,6 +1821,8 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, goto err0; } + pm_runtime_get_sync(musb->controller); + DBG(3, "registering driver %s\n", driver->function); if (musb->gadget_driver) { @@ -1885,6 +1887,10 @@ int usb_gadget_probe_driver(struct usb_gadget_driver *driver, } hcd->self.uses_pio_for_control = 1; + + if (musb->xceiv->last_event == USB_EVENT_NONE) + pm_runtime_put(musb->controller); + } return 0; @@ -1961,6 +1967,9 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) if (!musb->gadget_driver) return -EINVAL; + if (musb->xceiv->last_event == USB_EVENT_NONE) + pm_runtime_get_sync(musb->controller); + /* * REVISIT always use otg_set_peripheral() here too; * this needs to shut down the OTG engine. @@ -2002,6 +2011,8 @@ int usb_gadget_unregister_driver(struct usb_gadget_driver *driver) if (!is_otg_enabled(musb)) musb_stop(musb); + pm_runtime_put(musb->controller); + return 0; } EXPORT_SYMBOL(usb_gadget_unregister_driver); |