From: Lu Baolu <baolu.lu@linux.intel.com>
Date: Tue, 24 Jun 2014 14:14:43 +0000 (+0300)
Subject: xhci: clear root port wake on bits if controller isn't wake-up capable
X-Git-Tag: v3.2.64~321
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6833fc8599e2eaad3b5bf2aef0a07468379cc43b;p=pandora-kernel.git

xhci: clear root port wake on bits if controller isn't wake-up capable

commit ff8cbf250b448aac35589f6075082c3fcad8a8fe upstream.

When xHCI PCI host is suspended, if do_wakeup is false in xhci_pci_suspend,
xhci_bus_suspend needs to clear all root port wake on bits. Otherwise some Intel
platforms may get a spurious wakeup, even if PCI PME# is disabled.

This patch should be back-ported to kernels as old as 2.6.37, that
contains the commit 9777e3ce907d4cb5a513902a87ecd03b52499569
"USB: xHCI: bus power management implementation".

Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[bwh: Backported to 3.2: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---

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