linux-kernel - Re: [PATCH v1 1/2] dt-bindings: cache: add specific RZ/Five compatible to ax45mp

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Message-ID: <CA+V-a8sJUsNsF+AT1v3ySLiH9RGwDukMHHOC44JuV4JE3YKEpg@mail.gmail.com>
Date: Mon, 12 May 2025 11:05:17 +0100
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: Conor Dooley <conor@...nel.org>, Geert Uytterhoeven <geert@...ux-m68k.org>
Cc: linux-renesas-soc@...r.kernel.org, 
	Conor Dooley <conor.dooley@...rochip.com>, Ben Zong-You Xie <ben717@...estech.com>, 
	Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Magnus Damm <magnus.damm@...il.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v1 1/2] dt-bindings: cache: add specific RZ/Five
 compatible to ax45mp

Hi Conor and Geert,

On Mon, May 12, 2025 at 10:59 AM Conor Dooley <conor@...nel.org> wrote:
>
> On Mon, May 12, 2025 at 11:01:26AM +0200, Geert Uytterhoeven wrote:
> > Hi Conor,
> >
> > On Fri, 9 May 2025 at 17:39, Conor Dooley <conor@...nel.org> wrote:
> > > From: Conor Dooley <conor.dooley@...rochip.com>
> > >
> > > When the binding was originally written, it was assumed that all
> > > ax45mp-caches had the same properties etc. This has turned out to be
> > > incorrect, as the QiLai SoC has a different number of cache-sets.
> > >
> > > Add a specific compatible for the RZ/Five for property enforcement and
> > > in case there turns out to be additional differences between these
> > > implementations of the cache controller.
> > >
> > > Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
> >
> > Thanks for your patch!
> >
> > > --- a/Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml
> > > +++ b/Documentation/devicetree/bindings/cache/andestech,ax45mp-cache.yaml
> > > @@ -28,6 +28,7 @@ select:
> > >  properties:
> > >    compatible:
> > >      items:
> > > +      - const: renesas,r9a07g043f-cache
> >
> > This name looks a bit too generic to me, as this is not a generic
> > cache on the R9A07G043F SoC, but specific to the CPU cores.
>
> So "reneasas,r9...-cpu-cache"?

Maybe "renesas,r9a07g043f-riscv-cache" ?

Cheers,
Prabhakar