On Thu, Apr 19, 2018 at 03:32:33PM +0200, Alexandre Belloni wrote: > My suggestion was to add an MFD driver that would match the current > compatible and either have an atmel,usart-mode property or maybe more > risky, check whether there are children nodes. Based on that, the > correct platform device can be added, either an usart or an spi master > device can be registered.
Yeah, that's another approach which could work and is a bit easier from the DT point of view - the PXA stuff predated DT and was adapted into it.
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