There are quite a number of regulator modules not being built.

Some of these at least depend on the multifunction device drivers.

I am looking to get tumbleweed up and running on the BananaPi-R3, and perhaps
the new BananaPi-R4 in the future.

This needs REGULATOR_MT6323 enabled, at least as a module, and it depend on
MFD_MT6397.

There seems to be an awful lot of regulators not being build, mainly because
the multi function devices have not been selected.

As many of these can be built as modules, can these all be enables? As in all
the PMICs?