xhci: Refactor port status into a new function.

The hub control function is *way* too long.  Refactor it into a new
function, and document the side effects of calling that function.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
This commit is contained in:
Sarah Sharp 2013-04-02 08:42:20 -07:00
commit eae5b17621