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Re: [PATCH v2 0/6] ARM: berlin: add cpufreq support

From Antoine Tenart <antoine.tenart@free-electrons.com>
Newsgroups linux.kernel
Subject Re: [PATCH v2 0/6] ARM: berlin: add cpufreq support
Date 2015-08-18 16:40 +0200
Message-ID <pYQdr-BV-1@gated-at.bofh.it> (permalink)
References <pYNyW-55G-7@gated-at.bofh.it> <pYOEG-6Gh-9@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi,

On Tue, Aug 18, 2015 at 06:26:42PM +0530, Viresh Kumar wrote:
> On Tue, Aug 18, 2015 at 5:16 PM, Antoine Tenart
> <antoine.tenart@free-electrons.com> wrote:
> >
> > This series adds the cpufreq support to the Berlin SoCs, using
> > cpufreq-dt.
> >
> > First, the cpuclk clock is added to the BG2Q clock driver. This clock
> > has a divider fixed to 1, so we use a fixed factor clock here.
> >
> > Then register a platform device for cpufreq-dt.
> >
> > I also added the OPP table definition in the BG2Q, BG2 and BG2CD device
> > trees. When using a BG2Q, some bootloaders may update this table when
> > booting (mine doesn't).
> 
> You can switch to OPP-v2 bindings if you want. Just have a look, they are
> much more powerful.. Should be in linux-next/master.

Nice!

However, it seems the OPP-v2 table takes precedence over the old one.
When a default OPP-v2 table is supplied in the device tree, if the
bootloader supplies an OPP table the old way it won't be taken into
account.

So if I understood correctly, this won't work here for the BG2Q.

Antoine

-- 
Antoine Ténart, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
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Thread

[PATCH v2 0/6] ARM: berlin: add cpufreq support Antoine Tenart <antoine.tenart@free-electrons.com> - 2015-08-18 13:50 +0200
  [PATCH v2 6/6] ARM: berlin: register cpufreq-dt Antoine Tenart <antoine.tenart@free-electrons.com> - 2015-08-18 13:50 +0200
  [PATCH v2 2/6] clk: berlin: add cpuclk Antoine Tenart <antoine.tenart@free-electrons.com> - 2015-08-18 13:50 +0200
  [PATCH v2 5/6] ARM: berlin: dts: add the cpufreq-dt bindings on the BG2CD Antoine Tenart <antoine.tenart@free-electrons.com> - 2015-08-18 13:50 +0200
  [PATCH v2 4/6] ARM: berlin: dts: add the cpufreq-dt bindings on the BG2 Antoine Tenart <antoine.tenart@free-electrons.com> - 2015-08-18 13:50 +0200
  Re: [PATCH v2 0/6] ARM: berlin: add cpufreq support Viresh Kumar <viresh.kumar@linaro.org> - 2015-08-18 15:00 +0200
    Re: [PATCH v2 0/6] ARM: berlin: add cpufreq support Antoine Tenart <antoine.tenart@free-electrons.com> - 2015-08-18 16:40 +0200
      Re: [PATCH v2 0/6] ARM: berlin: add cpufreq support Viresh Kumar <viresh.kumar@linaro.org> - 2015-08-18 17:00 +0200
        Re: [PATCH v2 0/6] ARM: berlin: add cpufreq support Antoine Tenart <antoine.tenart@free-electrons.com> - 2015-08-19 10:20 +0200

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