Messages in this thread | | | Date | Tue, 27 Oct 2015 10:41:14 +0100 | Subject | Re: [PATCH 05/11] dt-binding: Add ngpios property to GPIO controller node | From | Linus Walleij <> |
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On Mon, Oct 19, 2015 at 7:43 AM, Pramod Kumar <pramodku@broadcom.com> wrote:
> Add ngpios property to the gpio controller's DT node so that controller > driver extracts total number of gpio lines present in controller > from DT and removes dependency on driver. > > Signed-off-by: Pramod Kumar <pramodku@broadcom.com> > Reviewed-by: Ray Jui <rjui@broadcom.com> > Reviewed-by: Scott Branden <sbranden@broadcom.com> (...) > +- ngpios: > + Total number of GPIOs the controller provides
This description is wrong. The number of GPIOs the controller *provides* is to be determined by the compatible-string.
ngpios is used to restrict the number of lines *used* or *routed* from the number *available*. (I hope that is what the code does as well.) Such as if 12 GPIOs are used of the 32 available on 32bits in a register.
Update this description to say what it really means.
Yours, Linus Walleij
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