From ff284f37fc0e6f3b51ede85c5944d571b640ac0f Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 13 May 2015 00:44:14 +0200
Subject: [PATCH] Revert "ACPICA: Permanently set _REV to the value '2'."

Revert commit b1ef29725865 (ACPICA: Permanently set _REV to the value
'2'.) as it causes a sound regression to happen on Dell XPS 13 (2015).

Reported-by: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Reading git-format-patch failed