net: tsec: Use dm_eth_phy_connect() directly for the DM case

Now that the fixed phy driver has been fully adapted to OF APIs,
and dm_eth_phy_connect() already can handle the fixed phy, call
dm_eth_phy_connect() directly in the DM tsec driver.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210216224804.3355044-4-olteanv@gmail.com>
[bmeng: split from "net: mdio: teach dm_eth_phy_connect to connect to fixed PHY"]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
index ec48689..f801d02 100644
--- a/drivers/net/tsec.c
+++ b/drivers/net/tsec.c
@@ -707,11 +707,7 @@
 		tsec_configure_serdes(priv);
 
 #if defined(CONFIG_DM_ETH) && defined(CONFIG_DM_MDIO)
-	if (ofnode_valid(ofnode_find_subnode(dev_ofnode(priv->dev),
-					     "fixed-link")))
-		phydev = phy_connect(NULL, 0, priv->dev, priv->interface);
-	else
-		phydev = dm_eth_phy_connect(priv->dev);
+	phydev = dm_eth_phy_connect(priv->dev);
 #else
 	phydev = phy_connect(priv->bus, priv->phyaddr, priv->dev,
 			     priv->interface);