linux-kernel - Re: [PATCH v1 00/17] NVIDIA Tegra20 CPUFreq driver major update

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Message-ID: <8cf055a3-57fd-c275-9e74-a9fb5d284866@gmail.com>
Date:   Wed, 16 Oct 2019 16:16:27 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Viresh Kumar <viresh.kumar@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>
Cc:     Jonathan Hunter <jonathanh@...dia.com>,
        Peter De Schrijver <pdeschrijver@...dia.com>,
        Prashant Gaikwad <pgaikwad@...dia.com>,
        "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Rob Herring <robh+dt@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Peter Geis <pgwipeout@...il.com>,
        Nicolas Chauvet <kwizart@...il.com>,
        Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        linux-pm@...r.kernel.org, linux-tegra@...r.kernel.org,
        devicetree@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 00/17] NVIDIA Tegra20 CPUFreq driver major update

16.10.2019 08:27, Viresh Kumar пишет:
> On 16-10-19, 00:16, Dmitry Osipenko wrote:
>> Hello,
>>
>> This series moves intermediate-clk handling from tegra20-cpufreq into
>> tegra-clk driver, this allows us to switch to generic cpufreq-dt driver
>> which brings voltage scaling, per-hardware OPPs and Tegra30 support out
>> of the box. All boards need to adopt CPU OPPs in their device-trees in
>> order to get cpufreq support. This series adds OPPs only to selective
>> boards because there is assumption in a current device-trees that CPU
>> voltage is set for 1GHz freq and this won't work for those CPUs that
>> can go over 1GHz and thus require voltage regulators to be set up for
>> voltage scaling support (CC'ed Marcel for Toradex boards). We could
>> probably add delete-node for OPPs over 1GHz if there are not actively
>> maintained boards.
> 
> How do you want to get these patches merged ? Can I just pick the cpufreq bits
> alone ?
> 

The cpufreq bits strictly depend on the clk patches and the regulators
coupler/balancer series. Hence all patches in this series should collect
acks from relevant maintainers and then Thierry will pick up the
patchsets in a correct order via tegra tree, at least that's my vision.

Thierry, are you okay with that approach?