]> git.karo-electronics.de Git - linux-beck.git/commit
xhci: clear root port wake on bits if controller isn't wake-up capable
authorLu Baolu <baolu.lu@linux.intel.com>
Tue, 24 Jun 2014 14:14:43 +0000 (17:14 +0300)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 24 Jun 2014 16:29:35 +0000 (12:29 -0400)
commitff8cbf250b448aac35589f6075082c3fcad8a8fe
treea293dba0617be0258286eaf58405708892ed4b11
parent3213b151387df0b95f4eada104f68eb1c1409cb3
xhci: clear root port wake on bits if controller isn't wake-up capable

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".

Cc: stable@vger.kernel.org # 2.6.37
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>
drivers/usb/host/xhci-hub.c