From f5f93117f4ac24b8493cda67e6a1443517d26845 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 5 Apr 2012 12:15:17 +0300
Subject: [PATCH] gpio/langwell: clear IRQ edge detect registers at init

The boot firmware might leave the registers configured causing interrupts
to happen even when no handler for them is yet registered. Fix this by
clearing the IRQ edge detect registers at init.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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