linux-kernel - Re: [PATCH net-next v10 01/15] dt-bindings: net: Introduce the ethernet-connector description

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Message-ID: <8d0029bc-74b7-44bc-ae0b-606d5fd2d7c3@lunn.ch>
Date: Sat, 26 Jul 2025 21:49:07 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
	thomas.petazzoni@...tlin.com, Jakub Kicinski <kuba@...nel.org>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Russell King <linux@...linux.org.uk>,
	linux-arm-kernel@...ts.infradead.org,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Herve Codina <herve.codina@...tlin.com>,
	Florian Fainelli <f.fainelli@...il.com>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Vladimir Oltean <vladimir.oltean@....com>,
	Köry Maincent <kory.maincent@...tlin.com>,
	Marek Behún <kabel@...nel.org>,
	Oleksij Rempel <o.rempel@...gutronix.de>,
	Nicolò Veronese <nicveronese@...il.com>,
	Simon Horman <horms@...nel.org>, mwojtas@...omium.org,
	Antoine Tenart <atenart@...nel.org>, devicetree@...r.kernel.org,
	Conor Dooley <conor+dt@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Romain Gantois <romain.gantois@...tlin.com>,
	Daniel Golle <daniel@...rotopia.org>,
	Dimitri Fedrau <dimitri.fedrau@...bherr.com>
Subject: Re: [PATCH net-next v10 01/15] dt-bindings: net: Introduce the
 ethernet-connector description

>  - The number of lanes, which is a quite generic property that allows
>    differentating between multiple similar technologies such as BaseT1
>    and "regular" BaseT (which usually means BaseT4).

> +            mdi {
> +                connector-0 {
> +                    lanes = <2>;
> +                    media = "BaseT";

This is correct when the port is Fast Ethernet. However, as you point
out, now a days, the more normal case is 1G, with 4 lanes for BaseT.
To avoid developers just copy/pasting without engaging brain, maybe
add a comment about it being a Fast Ethernet port?

	Andrew