tree 7e7a9a8ed73b80c083019acd337956b3c537ff5f
parent 61e6cfa80de5760bbe406f4e815b7739205754d2
author Ulf Hansson <ulf.hansson@linaro.org> 1381868708 +0200
committer Rafael J. Wysocki <rafael.j.wysocki@intel.com> 1381882017 +0200

PM / Runtime: Respect autosuspend when idle triggers suspend

For devices which don't have a .runtime_idle() callback or if it
returns 0, rpm_idle() will end up in triggering a call to
rpm_suspend(), thus trying to carry out a runtime suspend directly
from runtime_idle().

In the above situation we want to respect devices which has enabled
autosuspend, we therfore append the flag sent to rpm_suspend with
RPM_AUTO.

Do note that drivers still needs to update the device last busy mark,
to control the delay for this circumstance.

Updated runtime PM documentation accordingly.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>