From c78b0830667a7e7c1f0ca65b76b33166a84806b3 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Fri, 23 May 2014 16:15:09 +0300
Subject: [PATCH] ACPI / LPSS: custom power domain for LPSS

A power domain where we save the context of the additional
LPSS registers. We need to do this or all LPSS devices are
left in reset state when resuming from D3 on some Baytrails.
The devices with the fractional clock divider also have
zeros for N and M values after resuming unless they are
reset.

Li Aubrey found the root cause for the issue. The idea of
using power domain for LPSS came from Mika Westerberg.

Reported-by: Jin Yao <yao.jin@linux.intel.com>
Suggested-by: Li Aubrey <aubrey.li@linux.intel.com>
Suggested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
[rjw: Added the .complete() callback to the PM domain, fixed build
 warning on 32-bit.]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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