Messages in this thread | | | From | Adam Ford <> | Date | Wed, 11 Sep 2019 12:49:53 -0500 | Subject | Re: [Letux-kernel] [RFC PATCH 0/3] Enable 1GHz support on omap36xx |
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On Wed, Sep 11, 2019 at 12:43 PM H. Nikolaus Schaller <hns@goldelico.com> wrote: > > Hi Adam, > > > Am 11.09.2019 um 18:01 schrieb H. Nikolaus Schaller <hns@goldelico.com>: > > > >> > >> Am 11.09.2019 um 17:56 schrieb Adam Ford <aford173@gmail.com>: > >> > >>> There are some subtleties for testing. > >>> > >>> * I have added turbo-mode; to OPP6 / OPP1G > >>> * which means they are available but not used by the ondemand govenor > >>> * to enable them one has to echo 1 >/sys/devices/system/cpu/cpufreq/boost > >> > >> Will that be documented somewhere? If not, can we put a comment in the > >> device tree so people know how to enable it? > > > > It seems to be pretty standard on i86 systems if you google for "turbo mode". > > I have added it to the commit message which adds the vbb regulator. > > And, I am not sure if DT maintainers will accept comments about the > Linux /sys implementation in device tree files or bindings. Those > should be independent of Linux.
OK. > > Basically the turbo-mode property is a hint to the OPP system (which > may or may not use of it). > > So I think it is indeed better to have it in the commit message and > not the code.
That makes sense.
> > One more thought: as long as we do not have junction temperature monitoring > we should keep it off by default... We may even remove the turbo-mode > designator if we have the 90°C limit and smart reflex working.
We're almost there!
adam > > BR, > Nikolaus >
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