Messages in this thread | | | From | Kevin Hilman <> | Subject | Re: Re: [PATCH 2/2] soc: s4: Add support for power domains controller | Date | Fri, 11 Feb 2022 10:52:41 -0800 |
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Hi Shunzhou,
"shunzhou.jiang@amlogic.com" <shunzhou.jiang@amlogic.com> writes:
> Hi Kevin: > Thanks your kindly reply
You're welcome. For future reference, please avoid top-posting. See: https://www.kernel.org/doc/html/latest/process/2.Process.html?highlight=top-posting#mailing-lists
> For those domains, default is active, we hope not close when in use or not in use, in our case, > only runtime PM (include suspend) control this, so set always on flag to avoid domain shutdown,
my question remains: why do want to keep these powered on even when they are not in use?
The goal of the power-domain framework + runtime PM is to be able to save power by turnin off power domains when they are not in use.
> if you also have concern, we can control this not in kernel, but this not our expect.
My strong preference is that this is controlled by the kernel.
Kevin
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