netdev - Re: [PATCH net-next v3 1/4] dt-bindings: net: ftgmac100: Add delay properties for AST2600

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Message-ID: <20251104-victorious-crab-of-recreation-d10bf4@kuoka>
Date: Tue, 4 Nov 2025 09:19:01 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Jacky Chou <jacky_chou@...eedtech.com>
Cc: Andrew Lunn <andrew+netdev@...n.ch>, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Po-Yu Chuang <ratbert@...aday-tech.com>, Joel Stanley <joel@....id.au>, 
	Andrew Jeffery <andrew@...econstruct.com.au>, netdev@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-aspeed@...ts.ozlabs.org, taoren@...a.com
Subject: Re: [PATCH net-next v3 1/4] dt-bindings: net: ftgmac100: Add delay
 properties for AST2600

On Mon, Nov 03, 2025 at 03:39:16PM +0800, Jacky Chou wrote:
> Create the new compatibles to identify AST2600 MAC0/1 and MAC3/4.
> Add conditional schema constraints for Aspeed AST2600 MAC controllers:
> - For "aspeed,ast2600-mac01", require rx/tx-internal-delay-ps properties
>   with 45ps step.
> - For "aspeed,ast2600-mac23", require rx/tx-internal-delay-ps properties
>   with 250ps step.

That difference does not justify different compatibles. Basically you
said they have same programming model, just different hardware
characteristics, so same compatible.

Best regards,
Krzysztof