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kernel: ar8216: add get_features method

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Modifying PHY capabilities in the probe function broke with upstream
commit 92ed2eb7f4b7 ("net: phy: probe the PHY before determining the
supported features").

AR8316 switches only support 10/100 Mbit/s link modes because of this
change.

Provide a get_features method for the PHY driver, so Gigabit link mode
will be advertised to link partners again.

Signed-off-by: David Bauer <mail@david-bauer.net>
(cherry picked from commit 766e0f584a)
This commit is contained in:
David Bauer 2021-06-02 19:34:01 +02:00
parent 9b258f220f
commit e7c5e08db0
1 changed files with 20 additions and 23 deletions
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43
target/linux/generic/files/drivers/net/phy/ar8216.c
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@ -2538,6 +2538,18 @@ ar8xxx_phy_config_aneg(struct phy_device *phydev)
return genphy_config_aneg(phydev);
}
static int
ar8xxx_get_features(struct phy_device *phydev)
{
struct ar8xxx_priv *priv = phydev->priv;
linkmode_copy(phydev->supported, PHY_BASIC_FEATURES);
if (ar8xxx_has_gige(priv))
linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, phydev->supported);
return 0;
}
static const u32 ar8xxx_phy_ids[] = {
0x004dd033,
0x004dd034, /* AR8327 */
@ -2635,29 +2647,14 @@ ar8xxx_phy_probe(struct phy_device *phydev)
found:
priv->use_count++;
if (phydev->mdio.addr == 0) {
linkmode_zero(phydev->supported);
if (ar8xxx_has_gige(priv))
linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, phydev->supported);
else
linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, phydev->supported);
linkmode_copy(phydev->advertising, phydev->supported);
if (phydev->mdio.addr == 0 && priv->chip->config_at_probe) {
priv->phy = phydev;
if (priv->chip->config_at_probe) {
priv->phy = phydev;
ret = ar8xxx_start(priv);
if (ret)
goto err_unregister_switch;
}
} else {
if (ar8xxx_has_gige(priv)) {
linkmode_zero(phydev->supported);
linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, phydev->supported);
linkmode_copy(phydev->advertising, phydev->supported);
}
if (priv->chip->phy_rgmii_set)
priv->chip->phy_rgmii_set(priv, phydev);
ret = ar8xxx_start(priv);
if (ret)
goto err_unregister_switch;
} else if (priv->chip->phy_rgmii_set) {
priv->chip->phy_rgmii_set(priv, phydev);
}
phydev->priv = priv;
@ -2730,7 +2727,6 @@ static struct phy_driver ar8xxx_phy_driver[] = {
.phy_id = 0x004d0000,
.name = "Atheros AR8216/AR8236/AR8316",
.phy_id_mask = 0xffff0000,
.features = PHY_BASIC_FEATURES,
.probe = ar8xxx_phy_probe,
.remove = ar8xxx_phy_remove,
.detach = ar8xxx_phy_detach,
@ -2738,6 +2734,7 @@ static struct phy_driver ar8xxx_phy_driver[] = {
.config_aneg = ar8xxx_phy_config_aneg,
.read_status = ar8xxx_phy_read_status,
.soft_reset = ar8xxx_phy_soft_reset,
.get_features = ar8xxx_get_features,
}
};