From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Date: Sat, 14 Sep 2013 01:38:20 +0000 (+0200)
Subject: PCI / ACPI / PM: Clear pme_poll for devices in D3cold on wakeup
X-Git-Tag: v3.12-rc2~7^2~1^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=834145156bedadfb50121f0bc5e9d9f9f942bcca;p=pandora-kernel.git

PCI / ACPI / PM: Clear pme_poll for devices in D3cold on wakeup

Commit 448bd85 (PCI/PM: add PCIe runtime D3cold support) added a
piece of code to pci_acpi_wake_dev() causing that function to behave
in a special way for devices in D3cold (so that their configuration
registers are not accessed before those devices are resumed).
However, it didn't take the clearing of the pme_poll flag into
account.  That has to be done for all devices, even if they are in
D3cold, or pci_pme_list_scan() will not know that wakeup has been
signaled for the device and will poll its PME Status bit
unnecessarily.

Fix the problem by moving the clearing of the pme_poll flag in
pci_acpi_wake_dev() before the code introduced by commit 448bd85.

Reported-and-tested-by: David E. Box <david.e.box@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: 3.6+ <stable@vger.kernel.org> # 3.6+
---

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