Hi! Documentation/devicetree/bindings/mfd/axp20x.txt nicely describes the capabilities of the X-powers PMICs; however, it seems polyphasing is left to comments only. May I suggest to add a property "poly-phased", just to get the discussion started? It could be a simple property in the current case for the axp803 and axp806 ("poly-phased with you-know-which") or a phandle in the future. BTW the axp803 datasheet is quite terse in that respect: is there one "master" reulator whose settings are copied or does a driver have to keep them in sync. Anyway, comments welcome! Torsten