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

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Message-ID: <20191016140121.GA1862769@ulmo>
Date:   Wed, 16 Oct 2019 16:01:21 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Dmitry Osipenko <digetx@...il.com>
Cc:     Viresh Kumar <viresh.kumar@...aro.org>,
        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

On Wed, Oct 16, 2019 at 04:16:27PM +0300, Dmitry Osipenko wrote:
> 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?

Works for me. I already have a set of clock patches that I'd like to
merge via the Tegra tree because of a runtime dependency, so it'd be
easy to apply these on top of that.

Thierry

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