linux-kernel - Re: [PATCH v4] dt-bindings: riscv: deprecate riscv,isa

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Message-ID: <20230701-pencil-predefine-3f8a2bc2b889@spud>
Date:   Sat, 1 Jul 2023 12:25:51 +0100
From:   Conor Dooley <conor@...nel.org>
To:     Andrew Jones <ajones@...tanamicro.com>
Cc:     palmer@...belt.com, Conor Dooley <conor.dooley@...rochip.com>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Rob Herring <robh+dt@...nel.org>,
        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>,
        Oleksii <oleksii.kurochko@...il.com>,
        linux-riscv@...ts.infradead.org, qemu-riscv@...gnu.org,
        u-boot@...ts.denx.de, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, Palmer Dabbelt <palmer@...osinc.com>,
        Rob Herring <robh@...nel.org>
Subject: Re: [PATCH v4] dt-bindings: riscv: deprecate riscv,isa

On Sat, Jul 01, 2023 at 01:01:40PM +0200, Andrew Jones wrote:
> On Fri, Jun 30, 2023 at 07:04:04PM +0100, Conor Dooley wrote:
> > From: Conor Dooley <conor.dooley@...rochip.com>
> ...
> > +oneOf:
> > +  - required:
> > +      - riscv,isa
> > +  - required:
> > +      - riscv,isa-base
> > +
> 
> I guess this means a DT must have either isa or isa-base, but not both.
> What should QEMU and other platforms which want to provide DTs that work
> for older kernels, but also start using the new schema do? I'd guess
> they'd like to provide both, where they'd expect isa-base to be used by
> newer kernels and isa by the old.

Sure, is just s/oneOf/anyOf/.

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