linux-kernel - Re: [PATCH v9 03/20] dt-bindings: gpu: Add Imagination Technologies PowerVR/IMG GPU

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Message-ID: <b2bfb0f127a4e63617b9b4492454223a5d57bfcd.camel@imgtec.com>
Date:   Tue, 28 Nov 2023 09:38:07 +0000
From:   Donald Robson <Donald.Robson@...tec.com>
To:     "geert@...ux-m68k.org" <geert@...ux-m68k.org>
CC:     "corbet@....net" <corbet@....net>,
        "luben.tuikov@....com" <luben.tuikov@....com>,
        "christian.koenig@....com" <christian.koenig@....com>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "tzimmermann@...e.de" <tzimmermann@...e.de>,
        "mripard@...nel.org" <mripard@...nel.org>,
        "hns@...delico.com" <hns@...delico.com>,
        "matthew.brost@...el.com" <matthew.brost@...el.com>,
        "dakr@...hat.com" <dakr@...hat.com>,
        Matt Coster <Matt.Coster@...tec.com>,
        "dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
        Sarah Walker <Sarah.Walker@...tec.com>,
        "conor.dooley@...rochip.com" <conor.dooley@...rochip.com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        "boris.brezillon@...labora.com" <boris.brezillon@...labora.com>,
        "afd@...com" <afd@...com>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "conor+dt@...nel.org" <conor+dt@...nel.org>,
        "faith.ekstrand@...labora.com" <faith.ekstrand@...labora.com>
Subject: Re: [PATCH v9 03/20] dt-bindings: gpu: Add Imagination Technologies
 PowerVR/IMG GPU

Hi Geert,

On Mon, 2023-11-27 at 09:39 +0100, Geert Uytterhoeven wrote:
> Hi Donald,
> 
> On Wed, Nov 22, 2023 at 5:36 PM Donald Robson <donald.robson@...tec.com> wrote:
> > From: Sarah Walker <sarah.walker@...tec.com>
> > 
> > Add the device tree binding documentation for the IMG AXE GPU used in
> > TI AM62 SoCs.
> > 
> > Co-developed-by: Frank Binns <frank.binns@...tec.com>
> > Signed-off-by: Frank Binns <frank.binns@...tec.com>
> > Signed-off-by: Sarah Walker <sarah.walker@...tec.com>
> > Signed-off-by: Donald Robson <donald.robson@...tec.com>
> 
> Thanks for your patch, which is now commit 6a85c3b14728f0d5
> ("dt-bindings: gpu: Add Imagination Technologies PowerVR/IMG GPU") in
> drm-misc/for-linux-next.
> 
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/gpu/img,powervr.yaml
> > +properties:
> > +  compatible:
> > +    items:
> > +      - enum:
> > +          - ti,am62-gpu
> > +      - const: img,img-axe # IMG AXE GPU model/revision is fully discoverable
> 
> Why the double "img", and not just "img,axe"?
> 

While the first 'img' is just short for 'Imagination', the second is the product
series name 'IMG-Axe' in lower case.  A quirk of the newer product names, really.
If we add older series they would be 'img,powervr-series[...]'.

Thanks for applying!
Donald

> Gr{oetje,eeting}s,
> 
>                         Geert
>