linux-kernel - Re: [PATCH v3 1/3] arm64: dts: renesas: r8a779a0: Add DU support

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Date:   Thu, 23 Sep 2021 09:00:09 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Kieran Bingham <kieran.bingham@...asonboard.com>
Cc:     Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Kieran Bingham <kieran.bingham+renesas@...asonboard.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 1/3] arm64: dts: renesas: r8a779a0: Add DU support

Hi Kieran,

On Thu, Sep 23, 2021 at 3:04 AM Kieran Bingham
<kieran.bingham@...asonboard.com> wrote:
> From: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
> Provide the device nodes for the DU on the V3U platforms.
>
> Reviewed-by: Geert Uytterhoeven <geert+renesas@...der.be>
> Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@...asonboard.com>
> ---
> v2
>  - Use a single clock specification for the whole DU.
>
> v3:
>  - Use 'du.0' clock name instead of 'du'

Thanks for the update!

> --- a/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
> +++ b/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
> @@ -1251,6 +1251,36 @@ vspd1: vsp@...28000 {
>                         renesas,fcp = <&fcpvd1>;
>                 };
>
> +               du: display@...00000 {
> +                       compatible = "renesas,du-r8a779a0";
> +                       reg = <0 0xfeb00000 0 0x40000>;
> +                       interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_HIGH>,
> +                                    <GIC_SPI 144 IRQ_TYPE_LEVEL_HIGH>;
> +                       clocks = <&cpg CPG_MOD 411>;
> +                       clock-names = "du.0";
> +                       power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
> +                       resets = <&cpg 411>;

You missed reset-names.

> +                       vsps = <&vspd0 0>, <&vspd1 0>;
> +                       status = "disabled";
> +
> +                       ports {
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +
> +                               port@0 {
> +                                       reg = <0>;
> +                                       du_out_dsi0: endpoint {
> +                                       };
> +                               };
> +
> +                               port@1 {
> +                                       reg = <1>;
> +                                       du_out_dsi1: endpoint {
> +                                       };
> +                               };
> +                       };
> +               };
> +
>                 prr: chipid@...00044 {
>                         compatible = "renesas,prr";
>                         reg = <0 0xfff00044 0 4>;

Gr{oetje,eeting}s,

                        Geert

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