net: phy: genphy_c45_pma_baset1_read_master_slave: read actual configuration

Since MDIO_PMA_PMD_BT1_CTRL register shows actual configuration (and
forced state configuration is equal to the state), we should show
this configuration for ethtool.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/phy/phy-c45.c

@@ -560,15 +560,19 @@ int genphy_c45_pma_baset1_read_master_slave(struct phy_device *phydev)
 	int val;
 
 	phydev->master_slave_state = MASTER_SLAVE_STATE_UNKNOWN;
+	phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
 
 	val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_PMD_BT1_CTRL);
 	if (val < 0)
 		return val;
 
-	if (val & MDIO_PMA_PMD_BT1_CTRL_CFG_MST)
+	if (val & MDIO_PMA_PMD_BT1_CTRL_CFG_MST) {
+		phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_FORCE;
 		phydev->master_slave_state = MASTER_SLAVE_STATE_MASTER;
-	else
+	} else {
+		phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_FORCE;
 		phydev->master_slave_state = MASTER_SLAVE_STATE_SLAVE;
+	}
 
 	return 0;
 }