From 76cde7e495904064d612cf3eb4bf6d9e76ff8191 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 1 Sep 2014 13:49:16 +0200
Subject: [PATCH] PCI / PM: Make PCIe PME interrupts wake up from
 suspend-to-idle

To make PCIe PME interrupts wake up the system from suspend to idle,
make the PME driver use enable_irq_wake() on the IRQ during system
suspend (if there are any wakeup devices below the given PCIe port)
without disabling PME interrupts.  This way, an interrupt will still
trigger if a wakeup event happens and the system will be woken up (or
system suspend in progress will be aborted) by means of the new
mechanics introduced previously.

This change allows Wake-on-LAN to be used for wakeup from
suspend-to-idle on my MSI Wind tesbed netbook.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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