dpaa2-mac: move setting up supported_interfaces into a function

The logic to setup the supported interfaces will get annotated based on
what the configuration of the SerDes PLLs supports. Move the current
setup into a separate function just to try to keep it clean.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c

@@ -257,6 +257,29 @@ static void dpaa2_pcs_destroy(struct dpaa2_mac *mac)
 	}
 }
 
+static void dpaa2_mac_set_supported_interfaces(struct dpaa2_mac *mac)
+{
+	/* We support the current interface mode, and if we have a PCS
+	 * similar interface modes that do not require the SerDes lane to be
+	 * reconfigured.
+	 */
+	__set_bit(mac->if_mode, mac->phylink_config.supported_interfaces);
+	if (mac->pcs) {
+		switch (mac->if_mode) {
+		case PHY_INTERFACE_MODE_1000BASEX:
+		case PHY_INTERFACE_MODE_SGMII:
+			__set_bit(PHY_INTERFACE_MODE_1000BASEX,
+				  mac->phylink_config.supported_interfaces);
+			__set_bit(PHY_INTERFACE_MODE_SGMII,
+				  mac->phylink_config.supported_interfaces);
+			break;
+
+		default:
+			break;
+		}
+	}
+}
+
 int dpaa2_mac_connect(struct dpaa2_mac *mac)
 {
 	struct net_device *net_dev = mac->net_dev;
@@ -305,25 +328,7 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac)
 		MAC_10FD | MAC_100FD | MAC_1000FD | MAC_2500FD | MAC_5000FD |
 		MAC_10000FD;
 
-	/* We support the current interface mode, and if we have a PCS
-	 * similar interface modes that do not require the PLLs to be
-	 * reconfigured.
-	 */
-	__set_bit(mac->if_mode, mac->phylink_config.supported_interfaces);
-	if (mac->pcs) {
-		switch (mac->if_mode) {
-		case PHY_INTERFACE_MODE_1000BASEX:
-		case PHY_INTERFACE_MODE_SGMII:
-			__set_bit(PHY_INTERFACE_MODE_1000BASEX,
-				  mac->phylink_config.supported_interfaces);
-			__set_bit(PHY_INTERFACE_MODE_SGMII,
-				  mac->phylink_config.supported_interfaces);
-			break;
-
-		default:
-			break;
-		}
-	}
+	dpaa2_mac_set_supported_interfaces(mac);
 
 	phylink = phylink_create(&mac->phylink_config,
 				 dpmac_node, mac->if_mode,