On Thu, Apr 07, 2016 at 03:25:09PM +0200, Martin Fuzzey wrote: > To implement the .enable_time() method I need the voltage (which is > the supply's voltage).
No, this is not sensible. You should be telling the framework about the slew rate and letting the framework work out how long it's going to take to transition. Your driver shouldn't be peering around inside other regulators, it should be telling the framework what it does itself and any handling of interrelationships should be in the framework.
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