diff options
| author | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-17 14:39:36 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-02-17 14:39:36 -0800 |
| commit | 9ce4f80fb67b47b96c647ac6280a06dbd4bb50d2 (patch) | |
| tree | 1a032356b1400bbb12fcd47b8c1a315727c9abca | |
| parent | dd305ad4c5d6bfacf7cb087aaaf6dd3f8a18b292 (diff) | |
Revert "USB: Reset USB 3.0 devices on (re)discovery"
This reverts commit 637d11bfb814637ec7b81e878db3ffea6408a89a. Sarah
wants to tweak it some more before it's applied to the tree.
Cc: Luben Tuikov <ltuikov@yahoo.com>
Cc: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/core/hub.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 0f299b7aad6..d041c6826e4 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2681,13 +2681,17 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1, mutex_lock(&usb_address0_mutex); - /* Reset the device; full speed may morph to high speed */ - /* FIXME a USB 2.0 device may morph into SuperSpeed on reset. */ - retval = hub_port_reset(hub, port1, udev, delay); - if (retval < 0) /* error or disconnect */ - goto fail; - /* success, speed is known */ - + if (!udev->config && oldspeed == USB_SPEED_SUPER) { + /* Don't reset USB 3.0 devices during an initial setup */ + usb_set_device_state(udev, USB_STATE_DEFAULT); + } else { + /* Reset the device; full speed may morph to high speed */ + /* FIXME a USB 2.0 device may morph into SuperSpeed on reset. */ + retval = hub_port_reset(hub, port1, udev, delay); + if (retval < 0) /* error or disconnect */ + goto fail; + /* success, speed is known */ + } retval = -ENODEV; if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed) { |