linux-kernel - Re: [PATCH net-next 3/7] net: phy: lxt: Mark LXT973 PHYs as having a broken isolate mode

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Message-ID: <20240912122451.GM572255@kernel.org>
Date: Thu, 12 Sep 2024 13:24:51 +0100
From: Simon Horman <horms@...nel.org>
To: Maxime Chevallier <maxime.chevallier@...tlin.com>
Cc: davem@...emloft.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, thomas.petazzoni@...tlin.com,
	Andrew Lunn <andrew@...n.ch>, 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>,
	Marek Behún <kabel@...nel.org>,
	Köry Maincent <kory.maincent@...tlin.com>,
	Oleksij Rempel <o.rempel@...gutronix.de>
Subject: Re: [PATCH net-next 3/7] net: phy: lxt: Mark LXT973 PHYs as having a
 broken isolate mode

On Wed, Sep 11, 2024 at 11:27:07PM +0200, Maxime Chevallier wrote:
> Testing showed that PHYs from the LXT973 family have a non-working
> isolate mode, where the MII lines aren't set in high-impedance as would
> be expected. Prevent isolating these PHYs.
> 
> Signed-off-by: Maxime Chevallier <maxime.chevallier@...tlin.com>
> ---
>  drivers/net/phy/lxt.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/net/phy/lxt.c b/drivers/net/phy/lxt.c
> index e3bf827b7959..55cf67391533 100644
> --- a/drivers/net/phy/lxt.c
> +++ b/drivers/net/phy/lxt.c
> @@ -334,6 +334,7 @@ static struct phy_driver lxt97x_driver[] = {
>  	.read_status	= lxt973a2_read_status,
>  	.suspend	= genphy_suspend,
>  	.resume		= genphy_resume,
> +	.flags		= PHY_NO_ISOLATE,
>  }, {
>  	.phy_id		= 0x00137a10,
>  	.name		= "LXT973",
> @@ -344,6 +345,7 @@ static struct phy_driver lxt97x_driver[] = {
>  	.config_aneg	= lxt973_config_aneg,
>  	.suspend	= genphy_suspend,
>  	.resume		= genphy_resume,
> +	.flags		= PHY_NO_ISOLATE,
>  } };

Hi Maxime,

This duplicates setting .flags for each array member
updated by this patch.

>  
>  module_phy_driver(lxt97x_driver);

-- 
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