On Tue, Jul 11, 2017 at 5:42 PM, Jan Kiszka <jan.kiszka@xxxxxxxxxxx> wrote: > On 2017-07-10 16:23, Jan Kiszka wrote: >> On 2017-07-10 16:09, Linus Walleij wrote: >>> This is not a legal device tree property, because its binding has >>> not been reviewed and approved, nor does it exist in any device >>> tree binding document. >>> >>> It is further wrong, because it is added to the GPIO offset which >>> is by definition controller-local. > > BTW, I don't get this second statement. The parameter passed in is > controlling which pin of the GPIO device can be controlled by the driver > at all. And that's also a very private interface between 8250_exar and > gpio-exar: the former tells the latter which pins are physically > available to drive, because the former operates the others already. Then it seems like the big confusion here is the "linux,*" prefix in the DT binding. We only use that for information which is necessary evil Linux-specific stuff. What you are talking about should be hardware-and-vendor specific info and prefixed "exar,*". Can you propose a patch simply changing the binding and try to get the DT maintainers ACK on it? Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html