Messages in this thread | | | From | "Rafael J. Wysocki" <> | Subject | Re: [PATCH v3] ARM: tegra: cpuidle: implement cpuidle_state.enter_freeze() | Date | Thu, 21 May 2015 03:02:36 +0200 |
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On Tuesday, May 19, 2015 04:49:12 PM Tomeu Vizoso wrote: > This callback is expected to do the same as enter() but it has to > guarantee that interrupts aren't enabled at any point in its execution, > as the tick is frozen. > > It will be called when the system goes to suspend-to-idle and will > reduce power usage because CPUs won't be awaken for unnecessary IRQs. > > By setting the CPUIDLE_FLAG_TIMER_STOP flag, we can reuse the same code > for both the enter() and enter_freeze() callbacks. > > Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com> > Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Makes sense to me, but I suppose it should go in via arm-soc.
-- I speak only for myself. Rafael J. Wysocki, Intel Open Source Technology Center.
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