netdev - Re: [PATCH net-next 2/2] net: mdio: mdio-i2c: Add support for single-byte SMBus operations

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Message-ID: <4ff4113d-f97d-4d40-bd7e-cdba6f30b6ee@lunn.ch>
Date: Mon, 24 Feb 2025 04:36:49 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc: davem@...emloft.net, Jakub Kicinski <kuba@...nel.org>,
	Eric Dumazet <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>,
	Russell King <linux@...linux.org.uk>,
	Heiner Kallweit <hkallweit1@...il.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com,
	Florian Fainelli <f.fainelli@...il.com>,
	Köry Maincent <kory.maincent@...tlin.com>,
	Simon Horman <horms@...nel.org>,
	Romain Gantois <romain.gantois@...tlin.com>,
	Antoine Tenart <atenart@...nel.org>,
	Marek Behún <kabel@...nel.org>
Subject: Re: [PATCH net-next 2/2] net: mdio: mdio-i2c: Add support for
 single-byte SMBus operations

> This was only tested on Copper SFP modules that embed a Marvell 88e1111
> PHY.

Does the Marvell PHY datasheet say what happens when you perform 8 bit
accesses to 16 bit registers, such at the BMSR?

	Andrew