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Revert "USB: Reset USB 3.0 devices on (re)discovery" 

This reverts commit 637d11bfb8.  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>
This commit is contained in:
Greg Kroah-Hartman 2011-02-17 14:39:36 -08:00
parent dd305ad4c5
commit 9ce4f80fb6
1 changed files with 11 additions and 7 deletions
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6
drivers/usb/core/hub.c
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@ -2681,13 +2681,17 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
mutex_lock(&usb_address0_mutex); mutex_lock(&usb_address0_mutex);
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 */ /* Reset the device; full speed may morph to high speed */
/* FIXME a USB 2.0 device may morph into SuperSpeed on reset. */ /* FIXME a USB 2.0 device may morph into SuperSpeed on reset. */
retval = hub_port_reset(hub, port1, udev, delay); retval = hub_port_reset(hub, port1, udev, delay);
if (retval < 0) /* error or disconnect */ if (retval < 0) /* error or disconnect */
goto fail; goto fail;
/* success, speed is known */ /* success, speed is known */
}
retval = -ENODEV; retval = -ENODEV;
if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed) { if (oldspeed != USB_SPEED_UNKNOWN && oldspeed != udev->speed) {