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Message-ID: <c0a83358-09a3-4c51-b8b6-6d6ea8b4f196@linaro.org>
Date: Fri, 12 Jan 2024 18:14:26 +0100
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Subject: Re: [PATCH v1 1/2] dt-bindings: arm: nuvoton: add Facebook Yosemite 4
 board
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To: Patrick Williams <patrick@stwcx.xyz>
Cc: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>,
 Avi Fishman <avifishman70@gmail.com>, Tomer Maimon <tmaimon77@gmail.com>,
 Tali Perry <tali.perry1@gmail.com>, Patrick Venture <venture@google.com>,
 Nancy Yuen <yuenn@google.com>, Benjamin Fair <benjaminfair@google.com>,
 Rob Herring <robh+dt@kernel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
 Conor Dooley <conor+dt@kernel.org>,
 =?UTF-8?Q?Jonathan_Neusch=C3=A4fer?= <j.neuschaefer@gmx.net>,
 openbmc@lists.ozlabs.org, devicetree@vger.kernel.org,
 linux-kernel@vger.kernel.org
References: <20240112013654.1424451-1-Delphine_CC_Chiu@wiwynn.com>
 <20240112013654.1424451-2-Delphine_CC_Chiu@wiwynn.com>
 <8efef092-e70f-46c0-a60a-e62e676d6eb2@linaro.org>
 <ZaFydbPxbeczo97t@heinlein.vulture-banana.ts.net>
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
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In-Reply-To: <ZaFydbPxbeczo97t@heinlein.vulture-banana.ts.net>
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On 12/01/2024 18:10, Patrick Williams wrote:
> On Fri, Jan 12, 2024 at 08:10:25AM +0100, Krzysztof Kozlowski wrote:
>> On 12/01/2024 02:36, Delphine CC Chiu wrote:
>>> Document the new compatibles used on Facebook Yosemite 4.
>>
>> There is Yosemite4 board already supported. What is this for?
>> https://lore.kernel.org/all/20240109072053.3980855-5-Delphine_CC_Chiu@wiwynn.com/
> 
> Yosemite4 is a server chassis which is managed by a BMC.  The BMC is on
> a pluggable module card.  Typically we've used Aspeed chips for this,
> but we are building an alternative BMC module using Nuvoton BMC chips.

There are few ways to solve this, like having different compatibles or
having some shared compatibles to note common part of hardware. However
usually the final compatible represents the final device, which here you
use for two entirely different products. This works only for the cases
of carrier boards, where that compatible indeed represents the same
hardware.

Not your case. This needs fixing.

Best regards,
Krzysztof