Re: [PATCH v3 1/1] pinctrl: add Intel BayTrail GPIO/pinctrl support

[Timur Tabi]

Rafael J. Wysocki wrote:
> >
>
> I would be interested in understanding what exactly the flow is in that
> situation, so care to educate me?  What does the driver do to trigger
> this and what exactly does happen in response to that?

I only just learned some of this myself, so I'm no expert.  My 
understanding is that the all of the pinctrl-* properties and nodes are 
scanned by the pinctrl layer itself.  So you could have a SATA 
controller node that points to a pin control node (via phandles).  When 
the SATA driver is probed, the pinctrl layer notices the phandles and 
automatically calls the pinctrl layer to configure the pins and pin muxes.

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