https://github.com/torvalds/linux
Revision c09ec25d3684cad74d851c0f028a495999591279 authored by Denis Turischev on 25 April 2014, 16:20:14 UTC, committed by Greg Kroah-Hartman on 25 April 2014, 16:34:10 UTC
The same issue like with Panther Point chipsets. If the USB ports are
switched to xHCI on shutdown, the xHCI host will send a spurious interrupt,
which will wake the system. Some BIOS have work around for this, but not all.
One example is Compulab's mini-desktop, the Intense-PC2.

The bug can be avoided if the USB ports are switched back to EHCI on
shutdown.

This patch should be backported to stable kernels as old as 3.12,
that contain the commit 638298dc66ea36623dbc2757a24fc2c4ab41b016
"xhci: Fix spurious wakeups after S5 on Haswell"

Signed-off-by: Denis Turischev <denis@compulab.co.il>
Cc: stable@vger.kernel.org
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
1 parent 1f81b6d
History
Tip revision: c09ec25d3684cad74d851c0f028a495999591279 authored by Denis Turischev on 25 April 2014, 16:20:14 UTC
xhci: Switch Intel Lynx Point ports to EHCI on shutdown.
Tip revision: c09ec25
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