When sja1105_init_mii_settings iterates over the port list, it prints
this message for disabled ports, because they don't have a valid
phy-mode:
[    4.778702] sja1105 spi2.0: Unsupported PHY mode unknown!
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Suggested-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
        mii = table->entries;
 
        for (i = 0; i < SJA1105_NUM_PORTS; i++) {
+               if (dsa_is_unused_port(priv->ds, i))
+                       continue;
+
                switch (ports[i].phy_mode) {
                case PHY_INTERFACE_MODE_MII:
                        mii->xmii_mode[i] = XMII_MODE_MII;