> > How does port_idx fit into this?
>
> I think you were assuming there is only one remoteproc in the system?
> In practice, the setup can look more like this:
>
> + remote_cm33{
> + rpmsg {
> + rpmsg-io-channel {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + gpio@0 {
> + compatible = "rpmsg-gpio";
> + reg = <0>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + #interrupt-cells = <2>;
> + interrupt-controller;
> + };
> + gpio@1 {
> + compatible = "rpmsg-gpio";
> + reg = <1>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + #interrupt-cells = <2>;
> + interrupt-controller;
> + };
> + ...
> + };
> + };
> +};
> +
> + remote_dsp {
> + rpmsg {
> + rpmsg-io-channel {
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + gpio@0 {
> + compatible = "rpmsg-gpio";
> + reg = <0>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + #interrupt-cells = <2>;
> + interrupt-controller;
> + };
> + ...
> + };
> + };
> +};
And why would this require a port_idx? If they are different rpmsg
instances, the channel numbers are in different address spaces.
Andrew
