diff options
Diffstat (limited to 'drivers/usb/core/driver.c')
| -rw-r--r-- | drivers/usb/core/driver.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index 60a45f1e3a67..f2f055eb6831 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -1022,6 +1022,14 @@ static int usb_resume_device(struct usb_device *udev, pm_message_t msg) goto done; } + /* Non-root devices on a full/low-speed bus must wait for their + * companion high-speed root hub, in case a handoff is needed. + */ + if (!(msg.event & PM_EVENT_AUTO) && udev->parent && + udev->bus->hs_companion) + device_pm_wait_for_dev(&udev->dev, + &udev->bus->hs_companion->root_hub->dev); + if (udev->quirks & USB_QUIRK_RESET_RESUME) udev->reset_resume = 1; |