tree 854b126f129a4f41392c70ccb5a49e92f088d533
parent 05afd4c0af6a43f6bda7caaacb01bc0116d50d3b
author Imre Deak <imre.deak@intel.com> 1495567097 -0500
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1497674508 +0200

PCI/PM: Add needs_resume flag to avoid suspend complete optimization

commit 4d071c3238987325b9e50e33051a40d1cce311cc upstream.

Some drivers - like i915 - may not support the system suspend direct
complete optimization due to differences in their runtime and system
suspend sequence.  Add a flag that when set resumes the device before
calling the driver's system suspend handlers which effectively disables
the optimization.

Needed by a future patch fixing suspend/resume on i915.

Suggested by Rafael.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: stable@vger.kernel.org
(rebased on v4.8, added kernel version to commit message stable tag)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>