Hi I'm trying to implement a regulator driver for a PMIC [1], and so far I don't see how it can be mapped to the present regulator API. Most its parts are pretty simple - DCDC step-down, LDO. The first step-up DCDC isn't a problem either. It's the second step-up supply, that I'm having a problem with. It's output voltage can be regulated by using either a voltage feedback or the three current feedbacks. In the current feedback mode one has a choice between a manual mode, in which case you just choose one of the feedbacks and everything is simple again, or in automatic mode. In the automatic mode one can use any subset of the 3 feedbacks. Then the PMIC "automatically selects the highest string" (any idea what that means anyone?) In any case, that means, that the chip uses some algorithm to pick up one of the feedbacks dynamically at run-time, depending on the current loads. So, question #1: what should I return from .get_current_limit()? I don't think there is a way to find out, which current limit is currently being used or how much consumers consume. #2: how do I set those 3 limits, resp., what do I do in .set_current_limit()? Looks like an API extension is needed...
Thanks Guennadi [1] http://www.ams.com/eng/content/download/278923/1044357/AS3711_Datasheet_v1_20.pdf --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
