USB: Turn on auto-suspend for USB 3.0 hubs.

Now that USB 3.0 hub remote wakeup on port status changes is enabled,
and USB 3.0 device remote wakeup is handled in the USB core properly,
let's turn on auto-suspend for all USB 3.0 hubs.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 994aa8853bac4cb120a709cda59aaff110868344..d4f062472796d8c2a6b07c023077060b29605518 100644 (file)
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1315,14 +1315,8 @@ 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 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);
+       /* Hubs have proper suspend/resume support. */
+       usb_enable_autosuspend(hdev);
 
        if (hdev->level == MAX_TOPO_LEVEL) {
                dev_err(&intf->dev,