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Message-ID: <099f3dfb-0557-4c8e-9e69-abc76463f659@linaro.org>
Date: Thu, 4 Jan 2024 09:41:58 +0100
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Subject: Re: [PATCH v4 03/11] dt-bindings: marvell: a38x: add solidrun armada
 388 clearfog boards
Content-Language: en-US
To: Josua Mayer <josua@solid-run.com>, Andrew Lunn <andrew@lunn.ch>,
 Gregory Clement <gregory.clement@bootlin.com>,
 Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>,
 Rob Herring <robh+dt@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org
References: <20231230-support-clearfog-gtr-l8-sfp-v4-0-1d7f0e2c7128@solid-run.com>
 <20231230-support-clearfog-gtr-l8-sfp-v4-3-1d7f0e2c7128@solid-run.com>
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <20231230-support-clearfog-gtr-l8-sfp-v4-3-1d7f0e2c7128@solid-run.com>
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On 30/12/2023 16:44, Josua Mayer wrote:
> Add DT compatible for SolidRun Armada-388 based Clearfog Base and Pro
> boards, which are already in place in-tree.
> 
> There are already 3 distinct dts in tree for these *two* boards,
> declaring particular compatible strings:
> - armada-388-clearfog.dts:
>   compatible = "solidrun,clearfog-a1", "marvell,armada388",
>                "marvell,armada385, "marvell,armada380";
> - armada-388-clearfog-base.dts:
>   compatible = "solidrun,clearfog-base-a1", "solidrun,clearfog-a1",
>                "marvell,armada388", "marvell,armada385,
>                "marvell,armada380";
> - armada-388-clearfog-pro.dts:
>   compatible = "solidrun,clearfog-base-a1", "solidrun,clearfog-a1",
>                "marvell,armada388", "marvell,armada385,
>                "marvell,armada380";

Drop code from commit msg. Commit msg should explain why and what, not
copy the code.

> 
> This has historic reasons, the first entry is a legacy name for the
> "pro" version, old versions of u-boot built when only one variant
> existed explicitly boot by this name.
> 
> Note that both compatibles and model field include the string "A1".
> At least up to revision 2.0 of the board, this had been printed
> on the pcb. However in marketing material and conversations it is
> usually omitted. "Clearfog Pro" and "Clearfog Pro A1" always mean
> exactly the same product.
> 
> Technically Base and Pro variants are similar enough that they can
> successfully boot with each other's dts. Hence it makes (some)
> sense for them to share the "clearfog-a1" compatible.
> 
> Add bindings for the explicit variants including base / pro suffix.
> The legacy "armada-388-clearfog.dts" is not supported by these
> bindings" as it does not make sense having two bindings for one board.
> 
> Signed-off-by: Josua Mayer <josua@solid-run.com>
> ---
>  .../devicetree/bindings/arm/marvell/armada-38x.yaml       | 15 ++++++---------
>  1 file changed, 6 insertions(+), 9 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml b/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml
> index 5af222e6db18..4950b840bf1c 100644
> --- a/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml
> +++ b/Documentation/devicetree/bindings/arm/marvell/armada-38x.yaml
> @@ -15,17 +15,14 @@ properties:
>    compatible:
>      oneOf:
>  
> -      - description: Armada 380 SoC
> -        items:
> -          - const: marvell,armada380
> -
> -      - description: Armada 385 SoC


You just added these lines. It does not make sense to add them and
immediately remove. It's a noop.
> 

Best regards,
Krzysztof