From 440c411d6ae9771c62e2b44ee94a80168f86077f Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Thu, 21 Nov 2013 12:28:17 +0200
Subject: [PATCH] iwlwifi: add D0i3 references boiler plate

D0i3 is bus power saving feature. It involves the
firmware - the driver needs to send a list of commands
to the firmware before entering this state. Wake up from
d0i3 also requires a few commands to the firmware.

The trigger to enter D0i3 is an idle timeout that will be
implemented later and will most probably rely on RUNTIME_PM
infrastructure.

In order to prevent entrance to D0i3 in critical flows, we
implement here a reference infrastructure. When a ref is
taken, we can't enter D0i3.

PCIe does't support D0i3.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
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