Re: [PATCH v16 0/4] Introduce usb charger framework to deal with the usb gadget power negotation

[Mark Brown]

On Fri, Sep 09, 2016 at 09:13:31AM +1000, NeilBrown wrote:

> Conceptually, the PHY is separate from the power manager and a solution
> which recognises that will be more universal.

The wm831x driver in the patch series is an example of such hardware -
it is purely a power manager, it has no USB PHY hardware at all.  It's a
current limiter intended to sit in line with the USB power lines to
ensure the system doesn't go over the maximum current draw (and also
integrates with the power source selection logic the chip has to pick
the best available power source for the system).

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