Re: [RFC] DT: bindings: Powerzone new bindings

From: Daniel Lezcano
Date: Thu Nov 18 2021 - 09:28:52 EST



Hi Arnd,

thanks you for your feedbacks.

I'll wait for feedbacks from Rob and propose a version with implementation.

On 18/11/2021 14:33, Arnd Bergmann wrote:
> On Mon, Nov 15, 2021 at 11:39 PM Daniel Lezcano
> <daniel.lezcano@xxxxxxxxxx> wrote:
>>
>> The proposed bindings are describing a powerzone, a power capping
>> capable place to act on and where we can read the power
>> consumption. The powerzone semantic is also found on the Intel
>> platform with the RAPL register.
>>
>> The powerzone can also represent a group of children powerzones, hence
>> the description can result on a hierarchy.
>>
>> The description gives the power constraint dependencies to apply on a
>> specific group of logically or physically aggregated devices. They do
>> not represent the physical location or the power domains of the SoC
>> even if the description could be similar.
>>
>> Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
>
> Hi Daniel,
>
> This looks reasonable to me, based on what I remember from previous
> discussions, but it would be good if you could summarize the points that
> have already been discussed in the past, e.g. which approaches you have
> tried out before and how you ended up here, including links to mailing
> list archives.
>
> I know you've been at this for quite some time now, but I can never
> remember the bits that we discussed in the past myself.
>
> Arnd
>


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