linux-kernel - Re: [PATCH v3 7/7] riscv: dts: starfive: Add StarFive JH7110 VisionFive 2 board device tree

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Message-ID: <Y+4AxDSDLyL1WAqh@wendy>
Date:   Thu, 16 Feb 2023 10:09:08 +0000
From:   Conor Dooley <conor.dooley@...rochip.com>
To:     Emil Renner Berthing <emil.renner.berthing@...onical.com>
CC:     Hal Feng <hal.feng@...rfivetech.com>,
        <linux-riscv@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        Conor Dooley <conor@...nel.org>,
        Palmer Dabbelt <palmer@...belt.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        Ben Dooks <ben.dooks@...ive.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Marc Zyngier <maz@...nel.org>, Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Linus Walleij <linus.walleij@...aro.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 7/7] riscv: dts: starfive: Add StarFive JH7110
 VisionFive 2 board device tree

On Thu, Feb 16, 2023 at 09:50:37AM +0000, Conor Dooley wrote:
> On Thu, Feb 16, 2023 at 10:27:17AM +0100, Emil Renner Berthing wrote:
> > On Wed, 15 Feb 2023 at 15:04, Hal Feng <hal.feng@...rfivetech.com> wrote:
> > > On 2/14/2023 5:53 PM, Emil Renner Berthing wrote:
> > > > On Tue, 20 Dec 2022 at 02:12, Hal Feng <hal.feng@...rfivetech.com> wrote:
> 
> > > >> +       model = "StarFive VisionFive 2 VB";
> > > >> +       compatible = "starfive,visionfive-2-vb", "starfive,jh7110";
> > > >
> > > > Hi Hal,
> > > >
> > > > I just want to double check, is "VisionFive 2 VA" / "visoinfive-2-va"
> > > > and "VisionFive 2 VB" / "visionfive-2-vb" really what you want? I
> > > > still think having these names match what is printed on the silkscreen
> > > > makes it a lot easier for everybody. Even your own releases calls the
> > > > boards "v1.2A" and "v1.3B":
> > > > https://github.com/starfive-tech/VisionFive2/releases/
> > > >
> > > > So I'd suggest
> > > > model = "StarFive VisionFive 2 v1.3B";
> > > > compatible = "starfive,visionfive-2-v1.3b", "starfive,jh7110";
> > > >
> > > > I haven't seen these "VA" and "VB" anywhere else, so if you don't want
> > > > the version numbers and can promise that there will be no incompatible
> > > > future revisions of the boards then maybe just drop the "V". Eg.
> > > > model = "StarFive VisionFive 2 B";
> > > > compatible = "starfive,visionfive-2-b", "starfive,jh7110";
> > >
> > > The version A board has reached the end of life. As far as I know, the
> > > version B board will not update also unless there are some important
> > > requirements and StarFive decides to update. Furthermore, it's too late
> > > to change the compatible as patch 1 was already accepted. Will it be
> > > easier to read if I modify it as below?
> > >
> > >         model = "StarFive VisionFive 2 vB";
> > >         compatible = "starfive,visionfive-2-vb", "starfive,jh7110";
> > 
> > Oh, that's sad that the kernel will now end up calling the boards
> > something that's used nowhere else, even by StarFive :/
> > But yeah, I guess vA and vB are a little easier to read.
> 
> Nothing has been released with that name so AFAIU we can change it
> still. If you sort it out today/tomorrow I'll try get it to Arnd before
> the merge window opens...
> 
> I might've jumped the gun a bit here, I thought that it'd been changed
> to what you (Emil) had suggested.

?

-- >8 --
From 4d44e8a83716d1caa314f25a95bd21ac8904909e Mon Sep 17 00:00:00 2001
From: Conor Dooley <conor.dooley@...rochip.com>
Date: Thu, 16 Feb 2023 09:58:22 +0000
Subject: [PATCH] dt-bindings: riscv: correct starfive visionfive 2 compatibles

Using "va" and "vb" doesn't match what's written on the board, or the
communications from StarFive.
Switching to using the silkscreened version number will ease confusion &
the risk of another spin of the board containing a "conflicting" version
identifier.

Suggested-by: Emil Renner Berthing <emil.renner.berthing@...onical.com>
Fixes: 97b7ed072784 ("dt-bindings: riscv: Add StarFive JH7110 SoC and VisionFive 2 board")
Signed-off-by: Conor Dooley <conor.dooley@...rochip.com>
---
 Documentation/devicetree/bindings/riscv/starfive.yaml | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/riscv/starfive.yaml b/Documentation/devicetree/bindings/riscv/starfive.yaml
index 60c7c03fcdce..cc4d92f0a1bf 100644
--- a/Documentation/devicetree/bindings/riscv/starfive.yaml
+++ b/Documentation/devicetree/bindings/riscv/starfive.yaml
@@ -26,8 +26,8 @@ properties:
 
       - items:
           - enum:
-              - starfive,visionfive-2-va
-              - starfive,visionfive-2-vb
+              - starfive,visionfive-2-v1.2a
+              - starfive,visionfive-2-v1.3b
           - const: starfive,jh7110
 
 additionalProperties: true
-- 
2.39.0



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