linux-kernel - Re: [RFC v2 00/11] DVFS in the OPP core

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Date:   Fri, 24 May 2019 11:33:52 +0530
From:   Rajendra Nayak <rnayak@...eaurora.org>
To:     Viresh Kumar <viresh.kumar@...aro.org>
Cc:     linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-serial@...r.kernel.org,
        linux-spi@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        linux-scsi@...r.kernel.org, swboyd@...omium.org,
        ulf.hansson@...aro.org, dianders@...omium.org, rafael@...nel.org,
        vincent.guittot@...aro.org
Subject: Re: [RFC v2 00/11] DVFS in the OPP core


On 5/21/2019 11:52 AM, Viresh Kumar wrote:
> On 20-03-19, 15:19, Rajendra Nayak wrote:
>> This is a v2 of the RFC posted earlier by Stephen Boyd [1]
>>
>> As part of v2 I still follow the same approach of dev_pm_opp_set_rate()
>> API using clk framework to round the frequency passed and making it
>> accept 0 as a valid frequency indicating the frequency isn't required
>> anymore. It just has a few more drivers converted to use this approach
>> like dsi/dpu and ufs.
>> ufs demonstrates the case of having to handle multiple power domains, one
>> of which is scalable.
>>
>> The patches are based on 5.1-rc1 and depend on some ufs fixes I posted
>> earlier [2] and a DT patch to include the rpmpd header [3]
>>
>> [1] https://lkml.org/lkml/2019/1/28/2086
>> [2] https://lkml.org/lkml/2019/3/8/70
>> [3] https://lkml.org/lkml/2019/3/20/120
> 
> Hi Rajendra,
> 
> I am inclined to apply/push this series for 5.3-rc1, will it be
> possible for you to spend some time on this at priority ?

Hey Viresh, I was on vacation, just got back. I will refresh this series
and address your previous feedback, I haven't received much feedback for the
driver changes :/ but we can atleast review and get the OPP layer changes
finalized. thanks.

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