Messages in this thread | | | From | Kevin Hilman <> | Subject | Re: [PATCH V2 5/6] PM / domain: Save/restore performance state at runtime suspend/resume | Date | Fri, 17 Feb 2017 15:58:18 -0800 |
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Viresh Kumar <viresh.kumar@linaro.org> writes:
> With runtime PM, the devices get suspended while the system is up and > running in order to save power. At such times, it is important to > re-evaluate the required performance state of the domain, in order to > choose a lower state if possible. > > This patch updates the genpd suspend/resume callbacks to do that. > > Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Doesn't this assume that a device in the domain would need to change performance state while runtime suspended. How would that happen?
Rather than adding this here, I would think that drivers would instead remove any QoS requests before going into runtime suspend, which would trigger an update before runtime suspending.
Kevin
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