linux-kernel - Re: [RFC PATCH 1/3] dt-bindings: gpu: img: Add AM62P SoC specific compatible

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Message-ID: <d76c0299-a19d-4524-b026-79874fee10ee@ti.com>
Date: Wed, 16 Jul 2025 11:17:26 -0500
From: Andrew Davis <afd@...com>
To: Michael Walle <mwalle@...nel.org>, Frank Binns <frank.binns@...tec.com>,
        Matt Coster <matt.coster@...tec.com>,
        Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
        Rob Herring <robh@...nel.org>,
        Krzysztof
 Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>, Nishanth
 Menon <nm@...com>,
        Vignesh Raghavendra <vigneshr@...com>,
        Tero Kristo
	<kristo@...nel.org>
CC: <dri-devel@...ts.freedesktop.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RFC PATCH 1/3] dt-bindings: gpu: img: Add AM62P SoC specific
 compatible

On 7/16/25 8:47 AM, Michael Walle wrote:
> The AM62P and the J722S features the same BXS-4 GPU as the J721S2. Add a
> new SoC specific compatible.
> 

If the GPU is the same, and the integration is the same, do you really need
a new compatible?

> Signed-off-by: Michael Walle <mwalle@...nel.org>
> ---
>   Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
> index 4450e2e73b3c..bad3e412a168 100644
> --- a/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
> +++ b/Documentation/devicetree/bindings/gpu/img,powervr-rogue.yaml
> @@ -23,6 +23,7 @@ properties:
>             - const: img,img-rogue
>         - items:
>             - enum:
> +              - ti,am62p-gpu

There is a check below based on SoC compat:

>  - if:
>      properties:
>        compatible:
>          contains:
>            enum:
>              - ti,am62-gpu
>              - ti,j721s2-gpu
>    then:
>      properties:
>        clocks:
>          maxItems: 1

If you do add a new SoC specific compatible does this check need updating?

Andrew

>                 - ti,j721s2-gpu
>             - const: img,img-bxs-4-64
>             - const: img,img-rogue