1. 60ce19a usb: replace wait_ms() with mdelay() by Mike Frysinger · Mon Mar 05 13:47:00 2012 +0000
  2. 9bb46e0 USB: relax usbcore reset timings by Wolfgang Grandegger · Wed Dec 21 00:01:09 2011 +0000
  3. 6da5af3 USB: Separate out USB hub driver by Marek Vasut · Mon Feb 13 18:58:17 2012 +0000