ACPI fixes for v4.1-rc4

 - The recent ACPICA commit that set the ACPI _REV return value to 2
   (which is the value always used by Windows and now mandated by the
   spec too) in order to prevent the firmware people from using it to
   play tricks with us caused a serious audio regression to happen on
   Dell XPS 13 (the AML on that machine uses the _REV return value to
   decide how to expose audio to the OS and does that to hide the
   lack of proper support for its I2S audio in Linux), so revert that
   commit for now and we'll revisit the issue in the next cycle.

 - Ensure that the ordering of acpi_reserve_resources() with respect
   to the rest of the ACPI initialization sequence will always be
   the same, or the IO or memory region occupied by the ACPI fixed
   registers may be assigned to a PCI host bridge as a result of
   a race and random breakage ensues going forward.

/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
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=N6C9
-----END PGP SIGNATURE-----