From 5d39b9ee8b16b57fdbc065b91ebdd4ac03dab568 Mon Sep 17 00:00:00 2001
From: Rahul Sharma <rahul.sharma@samsung.com>
Date: Mon, 23 Jun 2014 11:02:25 +0530
Subject: [PATCH] drm/exynos: enable vsync interrupt while waiting for vblank

mixer_wait_for_vblank function expects that the upcoming
vsync interrupt handler routine will clear the
wait_vsync_event atomic variable.

For this to happen, interrupts should be enabled and
disabled properly.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
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