From 8eaa29f92a66c92ade1ad663d14d975d776ef492 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Thu, 12 Dec 2013 18:08:17 +0800
Subject: [PATCH] ACPI / Button: Fix enabling button GPEs twice

Button GPEs have been enabled in the acpi_wake_device_init() during
boot and the button driver enables them for the second time.
Consequently, it is necessary to do

# echo disable > /sys/firmware/acpi/interrupts/gpeXXX

twice in a row to disable those GPEs via sysfs. This patch is to
remove the GPE enabling code from the button driver to avoid the
problem.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
[rjw: Changelog]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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