Re: [PATCH net-next 09/12] ARM: dts: r9a06g032: describe MII converter

Clément Léger
2022-04-15T16:47:18Z

Le Fri, 15 Apr 2022 18:19:46 +0200,
Andrew Lunn <andrew@lunn.ch> a écrit :

> > I think it would be good to modify it like this:
> >
> > eth-miic@44030000 {
> > ...
> > converters {
> > mii_conv0: mii-conv@0 {
> > // Even if useless, maybe keeping it for the sake of coherency
> > renesas,miic-input = <MIIC_GMAC1>;
> > reg = <0>;
> > };
>
> This is not a 'bus', so using reg, and @0, etc is i think wrong. You
> just have a collection of properties.

Agreed, but this is the same thing that is done for DSA ports (at least
I think). It uses reg which describe the port number, this is not a
real bus per se, it only refer to port indices.

But if you think this should not be done like this, what do you propose
then ? These nodes are also reference from "pcs-handle" properties in
switch to retrieve the PCS. Would you suggest using something like
pcs-handle = <&eth_miic port_index> and remove the nodes then ?

Thanks,

--
Clément Léger,
Embedded Linux and Kernel engineer at Bootlin