85e05d82 Fri Oct 26 03:10:54 CDT 2012 Gerd Hoffmann <kraxel@redhat.com> xhci: add {get,set}_field macros & enum for pls
Add {get,set}_field macros (simliar to ehci) to read and update some bits of a word. Put them into use for updating pls (port link state) values. Also add a enum for pls values.