Re: [PATCH net] net: phy: motorcomm: read EEE abilities in yt8521_get_features()

From: Breno Leitao

Date: Wed Jul 01 2026 - 04:15:03 EST


On Wed, Jul 01, 2026 at 03:57:30PM +0800, xiaoning.wang@xxxxxxxxxxx wrote:
> From: Clark Wang <xiaoning.wang@xxxxxxx>
>
> 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@xxxxxxx>
> ---
> 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?