[Bug 216261] [patch] Resume failing without xhci controller reset

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=216261

--- Comment #5 from commit-hook at freebsd.org ---
A commit references this bug:

Author: hselasky
Date: Tue Mar 14 15:30:47 UTC 2017
New revision: 315253
URL: https://svnweb.freebsd.org/changeset/base/315253

Log:
  MFC r312424:

  Fix problem with suspend and resume when using Skylake chipsets. Make
  sure the XHCI controller is reset after halting it. The problem is
  clearly a BIOS bug as the suspend and resume is failing without
  loading the XHCI driver. The same happens when using Linux and the
  XHCI driver is not loaded.

  Submitted by:         Yanko Yankulov <yanko.yankulov at gmail.com>
  PR:                   216261

Changes:
_U  stable/9/sys/
  stable/9/sys/dev/usb/controller/xhci.c
  stable/9/sys/dev/usb/controller/xhci.h
  stable/9/sys/dev/usb/controller/xhci_pci.c

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