Re: [PATCH 22/31] soc/tegra: Migrate to dev_pm_opp_set_config()

[Dmitry Osipenko]

27.06.2022 09:45, Viresh Kumar пишет:
>> Looks okay. If you'll solve the cpufreq problem where OPP config is set
>> by two drivers for the same cpu device
> This is supported, there is some early freeing of resources on the
> removal path though, the reasoning for which I already gave in another
> email. Though, I am open to sorting that out as well, but nothing
> breaks the code for now AFAICT.
> 

In case of Tegra, we use tegra-cpufreq driver that sets supported_hw and
registers cpufreq-dt. If cpufreq-dt driver defers the probe, then the
supported_hw will be lost on the re-probe. I haven't checked yet, but I
suppose that cpufreq-dt driver defers on Tegra30 because of the CPU
regulator and that's why we get the "OPP table is missing" error.