linux-kernel - Re: [PATCH 1/5] dt-bindings: interrupt-controller: Add SOPHGO SG2002 plic

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Date: Mon, 17 Jun 2024 11:33:00 +0800
From: Inochi Amaoto <inochiama@...look.com>
To: Yixun Lan <dlan@...too.org>, 
	Thomas Bonnefille <thomas.bonnefille@...tlin.com>
Cc: Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Paul Walmsley <paul.walmsley@...ive.com>, Chen Wang <unicorn_wang@...look.com>, 
	Inochi Amaoto <inochiama@...look.com>, Chao Wei <chao.wei@...hgo.com>, 
	Albert Ou <aou@...s.berkeley.edu>, Palmer Dabbelt <palmer@...belt.com>, 
	Samuel Holland <samuel.holland@...ive.com>, Thomas Gleixner <tglx@...utronix.de>, 
	Daniel Lezcano <daniel.lezcano@...aro.org>, Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
	Miquèl Raynal <miquel.raynal@...tlin.com>, linux-kernel@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH 1/5] dt-bindings: interrupt-controller: Add SOPHGO SG2002
 plic

On Mon, Jun 17, 2024 at 12:36:27AM GMT, Yixun Lan wrote:
> hi Thomas:
> 
> On 12:28 Mon 27 May     , Thomas Bonnefille wrote:
> > Add compatible string for SOPHGO SG2002 Platform-Level Interruter
> > Controller.
> > 
> > Signed-off-by: Thomas Bonnefille <thomas.bonnefille@...tlin.com>
> > ---
> >  .../devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml      | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
> > index 709b2211276b..7e1451f9786a 100644
> > --- a/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
> > +++ b/Documentation/devicetree/bindings/interrupt-controller/sifive,plic-1.0.0.yaml
> > @@ -67,6 +67,7 @@ properties:
> >                - allwinner,sun20i-d1-plic
> >                - sophgo,cv1800b-plic
> >                - sophgo,cv1812h-plic
> > +              - sophgo,sg2002-plic
> 
> it's not necessary to introduce a new compatible name, as sg2002 use same plic IP as cv1800b
> I feel it's wrong to introduce sophgo,cv1812h-plic at first place, but that we can't revert?
> 
> same reason also apply to clint in patch 2/5 ..
> 

You are right, it is historical reasons. For hardware, they have the same risc-v cores
across the whole series.

It could be better to use something just like "cv1800-plic".

> >                - sophgo,sg2042-plic
> >                - thead,th1520-plic
> >            - const: thead,c900-plic
> > 
> > -- 
> > 2.45.1
> > 
> 
> -- 
> Yixun Lan (dlan)
> Gentoo Linux Developer
> GPG Key ID AABEFD55