From e307cc8941fc420f008e1f3cb86e16a4269aa2af Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Wed, 3 Apr 2013 19:31:45 +0800
Subject: [PATCH] ARM: tegra: irq: add wake up handling

Add the wake up handling for legacy irq controller, and using
IRQCHIP_MASK_ON_SUSPEND for wake irq handling.

Based on the work by:
Varun Wadekar <vwadekar@nvidia.com>

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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