usb, xhci: Clear warm reset change event during init
I noticed on my Panther Point system that I wasn't getting hotplug events for my usb3.0 disk on a usb3 port. I tracked it down to the fact that the system had the warm reset change bit still set. This seemed to block future events from being received, including a hotplug event. Clearing this bit during initialization allowed the hotplug event to be received and the disk to be recognized correctly. This patch should be backported to kernels as old as 2.6.39. Signed-off-by: Don Zickus <dzickus@redhat.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com> Cc: stable@vger.kernel.org
This commit is contained in:
parent
d31c285b3a
commit
79c3dd8150
1 changed files with 6 additions and 0 deletions
|
@ -813,6 +813,12 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
|
|||
USB_PORT_FEAT_C_PORT_LINK_STATE);
|
||||
}
|
||||
|
||||
if ((portchange & USB_PORT_STAT_C_BH_RESET) &&
|
||||
hub_is_superspeed(hub->hdev)) {
|
||||
need_debounce_delay = true;
|
||||
clear_port_feature(hub->hdev, port1,
|
||||
USB_PORT_FEAT_C_BH_PORT_RESET);
|
||||
}
|
||||
/* We can forget about a "removed" device when there's a
|
||||
* physical disconnect or the connect status changes.
|
||||
*/
|
||||
|
|
Loading…
Reference in a new issue