> Unfortunately though this effort has stalled some years ago. There is
> "struct regulator *bus_regulator;" in "struct i2c_adapter" already and
> vbus-supply is documented in i2c-mt65xx but afaik this not functional
> because some code was ripped out ago because of some AMDGPU regressions.

Thanks for mentioning this. It all sounded familiar to me but I couldn't
put my finger exactly.