Re: [PATCH v1 11/30] drm/tegra: dc: Support OPP and SoC core voltage scaling

Dmitry Osipenko
2020-11-12T22:37:10Z

12.11.2020 23:01, Mark Brown пишет:
>> But it's not allowed to change voltage of a dummy regulator, is it
>> intentional?
> Of course not, we can't know if the requested new voltage is valid - the
> driver would have to have explict support for handling situations where
> it's not possible to change the voltage (which it can detect through
> enumerating the values it wants to set at startup).
>
> [Requesting the same supply multiple times]

But how driver is supposed to recognize that it's a dummy or buggy
regulator if it rejects all voltages?