From: Eliad Peller <eliad@wizery.com>
Date: Thu, 21 Nov 2013 10:28:17 +0000 (+0200)
Subject: iwlwifi: add D0i3 references boiler plate
X-Git-Tag: v3.15-rc1~113^2~289^2^2~102^2~34
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=440c411d6ae9771c62e2b44ee94a80168f86077f;p=pandora-kernel.git

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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