Re: [PATCH resend v4 1/3] dt-bindings: phy: Add lan966x-serdes binding

[Horatiu Vultur <horatiu.vultur@microchip.com>]

The 11/30/2021 15:02, Geert Uytterhoeven wrote:
> 
> Hi Horatio,

Hi Geert,

> 
> On Tue, Nov 16, 2021 at 11:16 AM Horatiu Vultur
> <horatiu.vultur@microchip.com> wrote:
> > Document the lan966x ethernet serdes phy driver bindings.
> >
> > Reviewed-by: Rob Herring <robh@kernel.org>
> > Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
> 
> Thanks for your patch, which is now commit fd66e57e46a3d1b7
> ("dt-bindings: phy: Add lan966x-serdes binding") in phy/next.
> 
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/phy/microchip,lan966x-serdes.yaml
> 
> > +examples:
> > +  - |
> > +    serdes: serdes@e2004010 {
> > +      compatible = "microchip,lan966x-serdes";
> > +      reg = <0xe202c000 0x9c>, <0xe2004010 0x4>;
> > +      #phy-cells = <2>;
> > +    };
> 
> So this overlaps with the switch registers, cfr.
> Documentation/devicetree/bindings/net/microchip,lan966x-switch.yaml
> in net-next/master?
> 
>     switch: switch@e0000000 {
>       compatible = "microchip,lan966x-switch";
>       reg =  <0xe0000000 0x0100000>,
>              <0xe2000000 0x0800000>;
>       ...
>     };

Well, they will overlap, but the switch will not use the registers used
by the the serdes. The 'lan966x_main_iomap' inside lan966x_main.c will
decide which parts of the resource will be used.

> 
> Gr{oetje,eeting}s,
> 
>                         Geert
> 
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
> 
> In personal conversations with technical people, I call myself a hacker. But
> when I'm talking to journalists I just say "programmer" or something like that.
>                                 -- Linus Torvalds

-- 
/Horatiu