netdev - Re: [PATCH 2/2] net: phy: Provide Module 4 KSZ9477 errata (DS80000754C)

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Message-ID: <20230831044004.GA17603@pengutronix.de>
Date: Thu, 31 Aug 2023 06:40:04 +0200
From: Oleksij Rempel <o.rempel@...gutronix.de>
To: Lukasz Majewski <lukma@...x.de>
Cc: "Russell King (Oracle)" <linux@...linux.org.uk>,
	Eric Dumazet <edumazet@...gle.com>, Andrew Lunn <andrew@...n.ch>,
	davem@...emloft.net, Woojung Huh <woojung.huh@...rochip.com>,
	Vladimir Oltean <olteanv@...il.com>, Tristram.Ha@...rochip.com,
	Florian Fainelli <f.fainelli@...il.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	UNGLinuxDriver@...rochip.com,
	Heiner Kallweit <hkallweit1@...il.com>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] net: phy: Provide Module 4 KSZ9477 errata
 (DS80000754C)

Hi Lukasz,

On Wed, Aug 30, 2023 at 06:38:18PM +0200, Lukasz Majewski wrote:
> Hi Oleksij,
 
> The implementation as you suggested seems to work :-)
> 
> The ksz_get_phy_flags() - where the MICREL_NO_EEE is set is executed
> before ksz9477_config_init().
> 
> And then the eee_broken_modes are taken into account.
> 
> # ethtool --show-eee lan1
> EEE Settings for lan1:
>         EEE status: disabled
>         Tx LPI: 0 (us)
>         Supported EEE link modes:  100baseT/Full 
>                                    1000baseT/Full 
>         Advertised EEE link modes:  Not reported
>         Link partner advertised EEE link modes:  Not reported
> 
> I will prepare tomorrow a proper patch.

can you please by the way remove this line:
https://elixir.bootlin.com/linux/v6.5/source/drivers/net/phy/micrel.c#L1803

it is obsolet by eee_broken_modes.

Regards,
Oleksij
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