linux-kernel - Re: [PATCH v2] net: dsa: mv88e6xxx: fix external smi for mv88e6176

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Message-ID: <64029640-9c93-4019-97bc-c371cf14e91f@lunn.ch>
Date: Mon, 16 Jun 2025 23:18:49 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Vladimir Oltean <olteanv@...il.com>
Cc: Robert Cross <quantumcross@...il.com>, netdev@...r.kernel.org,
	bpf@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
	kuba@...nel.org, pabeni@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] net: dsa: mv88e6xxx: fix external smi for mv88e6176

> Is there any addition to Documentation/devicetree/bindings/net/dsa/marvell,mv88e6xxx.yaml
> that we could make in order to clarify which switch families have a
> combined internal+external MDIO bus and which ones have them separate?
> As you're saying, this is an area where mistakes happen relatively
> frequently.

It should be possible to add a constraint. Only compatible
"marvell,mv88e6190" can use "mdio-external"

	Andrew