diff options
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/core/hub.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 13aafd1b45e..0968157f3be 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -1290,8 +1290,14 @@ static int hub_probe(struct usb_interface *intf, const struct usb_device_id *id) desc = intf->cur_altsetting; hdev = interface_to_usbdev(intf); - /* Hubs have proper suspend/resume support */ - usb_enable_autosuspend(hdev); + /* Hubs have proper suspend/resume support. USB 3.0 device suspend is + * different from USB 2.0/1.1 device suspend, and unfortunately we + * don't support it yet. So leave autosuspend disabled for USB 3.0 + * external hubs for now. Enable autosuspend for USB 3.0 roothubs, + * since that isn't a "real" hub. + */ + if (!hub_is_superspeed(hdev) || !hdev->parent) + usb_enable_autosuspend(hdev); if (hdev->level == MAX_TOPO_LEVEL) { dev_err(&intf->dev, |