Re: [cip-dev] [PATCH 4.4.y-cip 0/3] Add TI CPUFreq/OPP hw-supported driver

[Chen-Yu Tsai <wens@csie.org>]

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Hi,

On Fri, May 01, 2020 at 11:36:15AM +0200, Pavel Machek wrote:
> Hi!
> 
> > > Tested on MOXA UC-8100A-ME that uses AM335x's SoC we have in house.
> > > 
> > > Dave Gerlach (1):
> > >   cpufreq: ti: Add cpufreq driver to determine available OPPs at runtime
> > > 
> > > Viresh Kumar (2):
> > >   PM / OPP: Add "opp-supported-hw" binding
> > >   PM / OPP: Parse 'opp-supported-hw' binding
> > 
> > Looks good to me.
> > If there is no opinion, I will apply this series.
> 
> I have made some comments. 3/3 has double-free in error path, that one
> may be worth fixing before the merge.

I will take over backporting these patches from Johnson, and other
in MOXA's kernel tree that were included from TI's SDK.

TI's SDK actually includes many more patches related to PM/OPP and
cpufreq. Most of them are already in mainline. I plan to backport
these in several steps, split by the original submission and kernel
version.

The first part will be from kernel v4.5, which includes the series
"PM / OPP: opp-supported-hw and <prop>-name bindings" [1] and later
-rc fixes in v4.5

The second part will be from kernel v4.6, which is the series
"PM / OPP: Introduce APIs to transition OPPs" [2] and -rc fixes.

The last part will be the ti-cpufreq driver and related fixes request
by Pavel, as well as conversion of am33xx dts to opp-v2.


Regards
ChenYu

[1] https://lore.kernel.org/linux-pm/cover.1447209519.git.viresh.kumar@linaro.org/
[2] https://lore.kernel.org/linux-pm/cover.1454992186.git.viresh.kumar@linaro.org/


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