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From: Breno Leitao <leitao@debian.org>
To: xiaoning.wang@oss.nxp.com
Cc: Frank.Sae@motor-comm.com, andrew@lunn.ch, hkallweit1@gmail.com,
	 linux@armlinux.org.uk, davem@davemloft.net, edumazet@google.com,
	kuba@kernel.org,  pabeni@redhat.com, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org,  imx@lists.linux.dev,
	xiaoning.wang@nxp.com
Subject: Re: [PATCH net] net: phy: motorcomm: read EEE abilities in yt8521_get_features()
Date: Wed, 1 Jul 2026 01:11:51 -0700	[thread overview]
Message-ID: <akTLmyF0r70Jyn9m@gmail.com> (raw)
In-Reply-To: <20260701075730.133707-1-xiaoning.wang@oss.nxp.com>

On Wed, Jul 01, 2026 at 03:57:30PM +0800, xiaoning.wang@oss.nxp.com wrote:
> From: Clark Wang <xiaoning.wang@nxp.com>
> 
> In phy_probe(), genphy_c45_read_eee_abilities() is only called when a
> driver uses phydrv->features. Drivers that implement .get_features are
> responsible for reading the EEE abilities themselves.
> 
> yt8521_get_features() does not do this, so phydev->supported_eee stays
> empty for YT8521/YT8531S and "ethtool --show-eee" reports "EEE status:
> not supported", even though the PHY has the standard EEE capability
> registers.
> 
> Call genphy_c45_read_eee_abilities() at the end of yt8521_get_features()
> to populate supported_eee.
> 
> Fixes: 70479a40954c ("net: phy: Add driver for Motorcomm yt8521 gigabit ethernet phy")
> Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
> ---
>  drivers/net/phy/motorcomm.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/drivers/net/phy/motorcomm.c b/drivers/net/phy/motorcomm.c
> index b49897500a59..46efa3406841 100644
> --- a/drivers/net/phy/motorcomm.c
> +++ b/drivers/net/phy/motorcomm.c
> @@ -2439,6 +2439,9 @@ static int yt8521_get_features(struct phy_device *phydev)
>  		/* add fiber's features to phydev->supported */
>  		yt8521_prepare_fiber_features(phydev, phydev->supported);
>  	}
> +
> +	genphy_c45_read_eee_abilities(phydev);

Don't you want to return error if genphy_c45_read_eee_abilities() fails?

  reply	other threads:[~2026-07-01  8:12 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-01  7:57 [PATCH net] net: phy: motorcomm: read EEE abilities in yt8521_get_features() xiaoning.wang
2026-07-01  8:11 ` Breno Leitao [this message]
2026-07-01  8:16   ` Clark Wang
2026-07-01  8:19     ` Breno Leitao
2026-07-01 14:32     ` Andrew Lunn

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