[PATCH v3 08/13] net: phy: add qca8081 config_aneg

Luo Jie
2021-10-18T03:34:50Z

Reuse at803x phy driver config_aneg excepting
adding 2500M auto-negotiation.

Signed-off-by: Luo Jie <luoj@codeaurora.org>
---
drivers/net/phy/at803x.c | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 0c22ef735230..c124d3fe40fb 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -1084,7 +1084,30 @@ static int at803x_config_aneg(struct phy_device *phydev)
return ret;
}

- return genphy_config_aneg(phydev);
+ /* Do not restart auto-negotiation by setting ret to 0 defautly,
+ * when calling __genphy_config_aneg later.
+ */
+ ret = 0;
+
+ if (phydev->drv->phy_id == QCA8081_PHY_ID) {
+ int phy_ctrl = 0;
+
+ /* The reg MII_BMCR also needs to be configured for force mode, the
+ * genphy_config_aneg is also needed.
+ */
+ if (phydev->autoneg == AUTONEG_DISABLE)
+ genphy_c45_pma_setup_forced(phydev);
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->advertising))
+ phy_ctrl = MDIO_AN_10GBT_CTRL_ADV2_5G;
+
+ ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
+ MDIO_AN_10GBT_CTRL_ADV2_5G, phy_ctrl);
+ if (ret < 0)
+ return ret;
+ }
+
+ return __genphy_config_aneg(phydev, ret);
}

static int at803x_get_downshift(struct phy_device *phydev, u8 *d)
@@ -1503,6 +1526,7 @@ static struct phy_driver at803x_driver[] = {
.set_wol = at803x_set_wol,
.get_wol = at803x_get_wol,
.get_features = at803x_get_features,
+ .config_aneg = at803x_config_aneg,
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_status = qca808x_read_status,
--
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