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

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Message-ID: <CAL_Jsq+CJ-mEcEujd5Sk4SLvgTfUX1A7NRXYcMDqkoViDYxTXw@mail.gmail.com>
Date:   Tue, 13 Jun 2023 07:28:34 -0600
From:   Rob Herring <robh@...nel.org>
To:     Conor Dooley <conor@...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

On Mon, Jun 12, 2023 at 3:23 PM Conor Dooley <conor@...nel.org> wrote:
>
> 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"?

Don't do the above node.

Rob