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

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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>
This commit is contained in:
Sarah Sharp 2012-01-06 16:27:25 -08:00
parent 72937e1e34
commit 2839f5bcfc
1 changed files with 2 additions and 8 deletions
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10
drivers/usb/core/hub.c
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@ -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,