linux-kernel - Re: [PATCH v1] dt-bindings: riscv: deprecate riscv,isa

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Message-ID: <20230612-relic-fetal-1beeae3455aa@spud>
Date:   Mon, 12 Jun 2023 22:23:50 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Conor Dooley <conor.dooley@...rochip.com>,
        Sean Anderson <sean.anderson@...o.com>,
        Anup Patel <anup@...infault.org>,
        Andrew Jones <ajones@...tanamicro.com>, palmer@...belt.com,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Alistair Francis <alistair.francis@....com>,
        Anup Patel <apatel@...tanamicro.com>,
        Atish Patra <atishp@...shpatra.org>,
        Jessica Clarke <jrtc27@...c27.com>,
        Rick Chen <rick@...estech.com>, Leo <ycliang@...estech.com>,
        linux-riscv@...ts.infradead.org, qemu-riscv@...gnu.org,
        u-boot@...ts.denx.de, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] dt-bindings: riscv: deprecate riscv,isa

Rob,
Before I press on with more versions...

On Thu, Jun 08, 2023 at 08:30:28PM +0100, Conor Dooley wrote:
> On Thu, Jun 08, 2023 at 01:15:37PM -0600, Rob Herring wrote:
> > On Tue, May 30, 2023 at 03:12:12PM +0100, Conor Dooley wrote:
> > > On Thu, May 18, 2023 at 10:42:34PM +0100, Conor Dooley wrote:
> > > > On Thu, May 18, 2023 at 02:30:53PM -0400, Sean Anderson wrote:
> > > 
> > > > > 
> > > > > Why not just have something like
> > > > > 
> > > > > mycpu {
> > > > > 	...
> > > > > 	riscv,isa {
> > > > > 		i;
> > > > > 		m;
> > > > > 		a;
> > > > > 		zicsr;
> > > > > 		...
> > 
> > I prefer property names be globally unique. The tools are geared towards 
> > that too. That's largely a symptom of having 0 type information in the 
> > DT.
> > 
> > For example if you had an extension called 'reg', it would be a problem.
> 
> Per the current ISA rules, that'd not be valid. But then again, I do
> have trust issues & it's not like "reg" is the only property name in DT
> land.

...you say "prefer" here. Is that a NAK, or a "you keep the pieces"?

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