On Thu, Jan 26, 2017 at 11:35:55AM +0100, Rafael J. Wysocki wrote: > but that doesn't work if drivers expect to be able to control regulators directly > (which BTW isn't an good idea overall IMO, because that may need to be done > differently on different platforms even without ACPI AFAICS). We've really not encountered anything that has any issues here outside of what's supported in the constraints already (basically what voltages can be set and if the supply can be turned on and off). I'd be pretty surprised if we did TBH, it's hard to do something radically different with a single piece of silicon which is the abstraction level we tend to be operating at if we are controlling regulators. AFAICT a higher level of abstraction is generally going to go along with physically hiding the regulators even in a DT world.