[EXT] Re: [PATCH v8 3/4] gpio: rpmsg: add generic rpmsg GPIO driver

[Andrew Lunn]

> > > + remote_cm33{
> > > +     rpmsg {
> > > +        rpmsg-io-channel {
> > > +          #address-cells = <1>;
> > > +          #size-cells = <0>;
> > > +
> > > +          gpio at 0 {
> > > +            compatible = "rpmsg-gpio";
> > > +            reg = <0>;
> > > +            gpio-controller;
> > > +            #gpio-cells = <2>;
> > > +            #interrupt-cells = <2>;
> > > +            interrupt-controller;
> > > +          };
> > > +          gpio at 1 {
> > > +            compatible = "rpmsg-gpio";
> > > +            reg = <1>;
> > > +            gpio-controller;
> > > +            #gpio-cells = <2>;
> > > +            #interrupt-cells = <2>;
> > > +            interrupt-controller;
> > > +          };

> Then how would you distinguish gpio at 0 from gpio at 1 on the CM33 RPMSG bus in the example above?
> They are running on the same transport.

Doesn't reg indicate the channel number? gpio at 0 is on rpmsg channel
0. gpio at 1 is on channel 1? The reg value gets filled into struct
rpmsg_channel_info when the endpoints are created?

   Andrew