linux-kernel - Re: [PATCH v7 2/5] powercap/drivers/dtpm: Add hierarchy creation

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Date:   Tue, 25 Jan 2022 18:53:43 +0100
From:   Daniel Lezcano <daniel.lezcano@...aro.org>
To:     Ulf Hansson <ulf.hansson@...aro.org>
Cc:     rjw@...ysocki.net, robh@...nel.org, lukasz.luba@....com,
        heiko@...ech.de, arnd@...aro.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, "Rafael J. Wysocki" <rafael@...nel.org>,
        Daniel Lezcano <daniel.lezcano@...nel.org>
Subject: Re: [PATCH v7 2/5] powercap/drivers/dtpm: Add hierarchy creation

On 25/01/2022 18:36, Ulf Hansson wrote:
> On Tue, 25 Jan 2022 at 18:18, Daniel Lezcano <daniel.lezcano@...aro.org> wrote:
>>
>> The DTPM framework is available but without a way to configure it.
>>
>> This change provides a way to create a hierarchy of DTPM node where
>> the power consumption reflects the sum of the children's power
>> consumption.
>>
>> It is up to the platform to specify an array of dtpm nodes where each
>> element has a pointer to its parent, except the top most one. The type
>> of the node gives the indication of which initialization callback to
>> call. At this time, we can create a virtual node, where its purpose is
>> to be a parent in the hierarchy, and a DT node where the name
>> describes its path.
>>
>> In order to ensure a nice self-encapsulation, the DTPM subsys array
>> contains a couple of initialization functions, one to setup the DTPM
>> backend and one to initialize it up. With this approach, the DTPM
>> framework has a very few material to export.
>>
>> Signed-off-by: Daniel Lezcano <daniel.lezcano@...aro.org>
>> Reviewed-by: Ulf Hansson <ulf.hansson@...aro.org>
> 
> Yes, this looks good to me now. Thanks for adopting my suggestions.


Thanks for your time to review the code


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