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References: <20210622231146.3208404-1-kieran.bingham@ideasonboard.com>
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From:   Geert Uytterhoeven <geert@linux-m68k.org>
Date:   Wed, 23 Jun 2021 14:53:33 +0200
Message-ID: <CAMuHMdW8vYC3+gVCv5eG_vkX79vU8RQL-6fSJd9McetDzikzSA@mail.gmail.com>
Subject: Re: [PATCH] dt-bindings: display: renesas,du: Provide bindings for r8a779a0
To:     Kieran Bingham <kieran.bingham@ideasonboard.com>
Cc:     Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>,
        David Airlie <airlied@linux.ie>,
        Daniel Vetter <daniel@ffwll.ch>,
        Rob Herring <robh+dt@kernel.org>,
        "open list:DRM DRIVERS FOR RENESAS" <dri-devel@lists.freedesktop.org>,
        "open list:DRM DRIVERS FOR RENESAS" 
        <linux-renesas-soc@vger.kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        open list <linux-kernel@vger.kernel.org>
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Hi Kieran,

On Wed, Jun 23, 2021 at 1:11 AM Kieran Bingham
<kieran.bingham@ideasonboard.com> wrote:
> From: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
>
> Extend the Renesas DU display bindings to support the r8a779a0 V3U.
>
> Signed-off-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>

Thanks for your patch!

> --- a/Documentation/devicetree/bindings/display/renesas,du.yaml
> +++ b/Documentation/devicetree/bindings/display/renesas,du.yaml
> @@ -39,6 +39,7 @@ properties:
>        - renesas,du-r8a77980 # for R-Car V3H compatible DU
>        - renesas,du-r8a77990 # for R-Car E3 compatible DU
>        - renesas,du-r8a77995 # for R-Car D3 compatible DU
> +      - renesas,du-r8a779a0 # for R-Car V3U compatible DU
>
>    reg:
>      maxItems: 1
> @@ -774,6 +775,57 @@ allOf:
>          - reset-names
>          - renesas,vsps
>
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - renesas,du-r8a779a0
> +    then:
> +      properties:
> +        clocks:
> +          items:
> +            - description: Functional clock for DU0
> +            - description: Functional clock for DU1
> +
> +        clock-names:
> +          items:
> +            - const: du.0
> +            - const: du.1

The hardware block has only a single function clock for both channels,
like on R-Car H1.

And what about DU_DOTCLKIN?

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