linux-kernel - Re: [PATCH 2/5] dt-bindings: net: Add MTIP L2 switch description (fec,mtip-switch.yaml)

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Message-ID: <a60c6ea2-628b-447d-bdc2-ebc7bd7d7400@kernel.org>
Date: Tue, 25 Mar 2025 16:11:00 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Andrew Lunn <andrew@...n.ch>, Lukasz Majewski <lukma@...x.de>
Cc: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>,
 Sascha Hauer <s.hauer@...gutronix.de>, Paolo Abeni <pabeni@...hat.com>,
 Jakub Kicinski <kuba@...nel.org>, Eric Dumazet <edumazet@...gle.com>,
 davem@...emloft.net, Andrew Lunn <andrew+netdev@...n.ch>,
 Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, Richard Cochran <richardcochran@...il.com>,
 netdev@...r.kernel.org, Maxime Chevallier <maxime.chevallier@...tlin.com>
Subject: Re: [PATCH 2/5] dt-bindings: net: Add MTIP L2 switch description
 (fec,mtip-switch.yaml)

On 25/03/2025 16:05, Andrew Lunn wrote:
>> +  phy-reset-gpios:
>> +    deprecated: true
>> +    description:
>> +      Should specify the gpio for phy reset.
> 
> It seem odd that a new binding has deprecated properties. Maybe add a
> comment in the commit message as to why they are there. I assume this
> is because you are re-using part of the FEC code as is, and it
> implements them?

Re-using existing driver code should not be a reason to use deprecated
properties, because you can change that common driver parts to support
both: old FEC style and new MTIP-L2-FEC switch.

Best regards,
Krzysztof