linux-kernel - Re: [PATCH v4 0/5] Add required-opps support to devfreq passive gov

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Date:   Thu, 14 Nov 2019 17:39:01 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     Saravana Kannan <saravanak@...gle.com>
Cc:     MyungJoo Ham <myungjoo.ham@...sung.com>,
        Kyungmin Park <kyungmin.park@...sung.com>,
        Viresh Kumar <vireshk@...nel.org>, Nishanth Menon <nm@...com>,
        Stephen Boyd <sboyd@...nel.org>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Sibi Sankar <sibis@...eaurora.org>,
        Android Kernel Team <kernel-team@...roid.com>,
        Linux PM <linux-pm@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 0/5] Add required-opps support to devfreq passive gov

Hi Saravana,

On 11/14/19 5:23 PM, Saravana Kannan wrote:
> On Wed, Nov 13, 2019 at 11:48 PM Chanwoo Choi <cw00.choi@...sung.com> wrote:
>>
>> Dear Saravana,
>>
>> Any other progress of this series?
> 
> Hi Chanwoo,
> 
> Thanks for checking. I haven't abandoned this patch series. This patch
> series depends on "lazy linking" of required-opps to avoid a cyclic
> dependency between devfreq and OPP table population. But Viresh wasn't
> happy with my implementation of the lazy liking for reasonable
> reasons.
> 
> I had a chat with Viresh during one of the several conferences that I
> met him at. To fix the lazy linking in the way he wanted it meant we
> had to fix other issues in the OPP framework that arise when OPP
> tables are shared in DT but not in memory. So he was kind enough to
> sign up to add lazy linking support to OPPs so that I won't have to do
> it. So, I'm waiting on that. So once that's added, I should be able to
> drop a few patches in this series, do some minor updates and then this
> will be good to go.

Thanks for the detailed explanation. I'll expect the your next version.

Thanks,
Chanwoo Choi