Re: [PATCH] arm64: dts: renesas: rz-smarc-du-adv7513: Simplify DU port configuration

[Geert Uytterhoeven]

Hi Prabhkar,

On Mon, 20 Apr 2026 at 15:22, Prabhakar <prabhakar.csengg@xxxxxxxxx> wrote:
> From: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
>
> The SoC dtsi already defines the du node with its ports hierarchy,
> including the du_out_rgb endpoint node under port@0. There is no need
> to redefine the entire ports/port@0 structure in the board-level dtsi.
>
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>

Thanks for your patch!

> --- a/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi
> +++ b/arch/arm64/boot/dts/renesas/rz-smarc-du-adv7513.dtsi
> @@ -24,19 +24,10 @@ &du {
>         pinctrl-names = "default";
>
>         status = "okay";
> +};
>
> -       ports {
> -               #address-cells = <1>;
> -               #size-cells = <0>;
> -
> -               port@0 {
> -                       reg = <0>;
> -
> -                       du_out_rgb: endpoint {
> -                               remote-endpoint = <&adv7513_in>;
> -                       };
> -               };
> -       };
> +&du_out_rgb {
> +       remote-endpoint = <&adv7513_in>;
>  };
>
>  &ADV7513_PARENT_I2C {

Doesn't this introduce new DTC W=1 warnings?
Cfr. "[PATCH 0/4] arm64: dts: renesas: Fix missing cells and reg"
https://lore.kernel.org/20260326042411.215241-1-marek.vasut+renesas@xxxxxxxxxxx/

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

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