linux-kernel - Re: [PATCH 1/3] dt-bindings: arm: mediatek: mmsys: Allow single vdo/mmsys endpoint

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Message-ID: <CAGXv+5EvWVhRXoxLbsV5G7DEWLnVGRMCC1Qtd02fD8jh35VRqA@mail.gmail.com>
Date: Mon, 12 Jan 2026 15:49:06 +0800
From: Chen-Yu Tsai <wenst@...omium.org>
To: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
Cc: robh@...nel.org, krzk+dt@...nel.org, conor+dt@...nel.org, 
	matthias.bgg@...il.com, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-mediatek@...ts.infradead.org, kernel@...labora.com
Subject: Re: [PATCH 1/3] dt-bindings: arm: mediatek: mmsys: Allow single
 vdo/mmsys endpoint

On Thu, Jan 8, 2026 at 10:39 PM AngeloGioacchino Del Regno
<angelogioacchino.delregno@...labora.com> wrote:
>
> The hardware supports using just a single output while leaving all
> of the others unconfigured (disabled), but the binding did not
> really allow specifying a single endpoint@0, because in this case
> one must either:
>  - Call the subnode `endpoint` and not declare any address and/or
>    size cells; or
>  - Call the subnode `endpoint@0` and have at least one more other
>    endpoint(@1 or @2), and declare address/size cells.
>
> Allow specifying a single `endpoint` subnode, without the `@0`
> implicit suffix to suppress warnings happening on this kind of
> valid usecase.
>
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>

Reviewed-by: Chen-Yu Tsai <wenst@...omium.org>

Looks correct to me.