linux-kernel - Re: [RFC PATCH] net: phy: micrel: reset KSZ9x31 when resuming

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Message-ID: <6cf761ad-91a8-4fcf-a9f9-0c18b7fb0b29@lunn.ch>
Date: Tue, 6 Feb 2024 20:19:46 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Francesco Dolcini <francesco@...cini.it>
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>,
	linux-renesas-soc@...r.kernel.org, netdev@...r.kernel.org,
	Francesco Dolcini <francesco.dolcini@...adex.com>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH] net: phy: micrel: reset KSZ9x31 when resuming

> What if the configuration was done using ethtool?

The MAC driver when handling ethtool requests should call
phy_ethtool_ksettings_set(). That manipulates phydev->advertising,
phydev->autoneg etc. These are the values passed by phy_config_aneg()
to the PHY driver.

   Andrew