From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Tue, 15 Oct 2013 20:25:08 +0000 (+0200)
Subject: PM / Runtime: Respect autosuspend when idle triggers suspend
X-Git-Tag: v3.13-rc1~96^2~17^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d66e6db28df330c0e5b61f9863754fc2fd37f8ca;p=pandora-kernel.git

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>
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