tree bd42be1731bab339ad0376fb389f9dc5a64f04ac
parent 0c8a32dff4f9ebed3e067e52e12842d7d7e047a0
author Sarah Sharp <sarah.a.sharp@linux.intel.com> 1274732715 -0700
committer Greg Kroah-Hartman <gregkh@suse.de> 1275682578 -0700

USB: xhci: Wait for controller to be ready after reset.

After software resets an xHCI host controller, it must wait for the
"Controller Not Ready" (CNR) bit in the status register to be cleared.
Software is not supposed to ring any doorbells or write to any registers
except the status register until this bit is cleared.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>