Merge branch 'mvpp2-phylink'

Russell King says:

====================
Convert mvpp2 to phylink supported_interfaces

This patch series converts mvpp2 to use phylinks supported_interfaces
bitmap to simplify the validate() implementation. The patches:

1) Add the supported interface modes the supported_interfaces bitmap.
2) Removes the checks for the interface type being supported from
   the validate callback
3) Removes the now unnecessary checks and call to
   phylink_helper_basex_speed() to support switching between
   1000base-X and 2500base-X for SFPs
4) Cleans up the resulting validate() code.

(3) becomes possible because when asking the MAC for its complete
support, we walk all supported interfaces which will include 1000base-X
and 2500base-X only if the comphy is present.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c

@@ -6261,32 +6261,13 @@ static void mvpp2_phylink_validate(struct phylink_config *config,
 	struct mvpp2_port *port = mvpp2_phylink_to_port(config);
 	__ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
 
-	/* Invalid combinations */
-	switch (state->interface) {
-	case PHY_INTERFACE_MODE_10GBASER:
-	case PHY_INTERFACE_MODE_XAUI:
-		if (!mvpp2_port_supports_xlg(port))
-			goto empty_set;
-		break;
-	case PHY_INTERFACE_MODE_RGMII:
-	case PHY_INTERFACE_MODE_RGMII_ID:
-	case PHY_INTERFACE_MODE_RGMII_RXID:
-	case PHY_INTERFACE_MODE_RGMII_TXID:
-		if (!mvpp2_port_supports_rgmii(port))
-			goto empty_set;
-		break;
-	case PHY_INTERFACE_MODE_1000BASEX:
-	case PHY_INTERFACE_MODE_2500BASEX:
-		/* When in 802.3z mode, we must have AN enabled:
-		 * Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ...
-		 * When <PortType> = 1 (1000BASE-X) this field must be set to 1.
-		 */
-		if (!phylink_test(state->advertising, Autoneg))
-			goto empty_set;
-		break;
-	default:
-		break;
-	}
+	/* When in 802.3z mode, we must have AN enabled:
+	 * Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ...
+	 * When <PortType> = 1 (1000BASE-X) this field must be set to 1.
+	 */
+	if (phy_interface_mode_is_8023z(state->interface) &&
+	    !phylink_test(state->advertising, Autoneg))
+		goto empty_set;
 
 	phylink_set(mask, Autoneg);
 	phylink_set_port_modes(mask);
@@ -6299,14 +6280,12 @@ static void mvpp2_phylink_validate(struct phylink_config *config,
 	switch (state->interface) {
 	case PHY_INTERFACE_MODE_10GBASER:
 	case PHY_INTERFACE_MODE_XAUI:
-	case PHY_INTERFACE_MODE_NA:
 		if (mvpp2_port_supports_xlg(port)) {
 			phylink_set_10g_modes(mask);
 			phylink_set(mask, 10000baseKR_Full);
 		}
-		if (state->interface != PHY_INTERFACE_MODE_NA)
-			break;
-		fallthrough;
+		break;
+
 	case PHY_INTERFACE_MODE_RGMII:
 	case PHY_INTERFACE_MODE_RGMII_ID:
 	case PHY_INTERFACE_MODE_RGMII_RXID:
@@ -6318,30 +6297,24 @@ static void mvpp2_phylink_validate(struct phylink_config *config,
 		phylink_set(mask, 100baseT_Full);
 		phylink_set(mask, 1000baseT_Full);
 		phylink_set(mask, 1000baseX_Full);
-		if (state->interface != PHY_INTERFACE_MODE_NA)
-			break;
-		fallthrough;
+		break;
+
 	case PHY_INTERFACE_MODE_1000BASEX:
+		phylink_set(mask, 1000baseT_Full);
+		phylink_set(mask, 1000baseX_Full);
+		break;
+
 	case PHY_INTERFACE_MODE_2500BASEX:
-		if (port->comphy ||
-		    state->interface != PHY_INTERFACE_MODE_2500BASEX) {
-			phylink_set(mask, 1000baseT_Full);
-			phylink_set(mask, 1000baseX_Full);
-		}
-		if (port->comphy ||
-		    state->interface == PHY_INTERFACE_MODE_2500BASEX) {
-			phylink_set(mask, 2500baseT_Full);
-			phylink_set(mask, 2500baseX_Full);
-		}
+		phylink_set(mask, 2500baseT_Full);
+		phylink_set(mask, 2500baseX_Full);
 		break;
+
 	default:
 		goto empty_set;
 	}
 
 	linkmode_and(supported, supported, mask);
 	linkmode_and(state->advertising, state->advertising, mask);
-
-	phylink_helper_basex_speed(state);
 	return;
 
 empty_set:
@@ -6937,6 +6910,40 @@ static int mvpp2_port_probe(struct platform_device *pdev,
 		port->phylink_config.dev = &dev->dev;
 		port->phylink_config.type = PHYLINK_NETDEV;
 
+		if (mvpp2_port_supports_xlg(port)) {
+			__set_bit(PHY_INTERFACE_MODE_10GBASER,
+				  port->phylink_config.supported_interfaces);
+			__set_bit(PHY_INTERFACE_MODE_XAUI,
+				  port->phylink_config.supported_interfaces);
+		}
+
+		if (mvpp2_port_supports_rgmii(port))
+			phy_interface_set_rgmii(port->phylink_config.supported_interfaces);
+
+		if (comphy) {
+			/* If a COMPHY is present, we can support any of the
+			 * serdes modes and switch between them.
+			 */
+			__set_bit(PHY_INTERFACE_MODE_SGMII,
+				  port->phylink_config.supported_interfaces);
+			__set_bit(PHY_INTERFACE_MODE_1000BASEX,
+				  port->phylink_config.supported_interfaces);
+			__set_bit(PHY_INTERFACE_MODE_2500BASEX,
+				  port->phylink_config.supported_interfaces);
+		} else if (phy_mode == PHY_INTERFACE_MODE_2500BASEX) {
+			/* No COMPHY, with only 2500BASE-X mode supported */
+			__set_bit(PHY_INTERFACE_MODE_2500BASEX,
+				  port->phylink_config.supported_interfaces);
+		} else if (phy_mode == PHY_INTERFACE_MODE_1000BASEX ||
+			   phy_mode == PHY_INTERFACE_MODE_SGMII) {
+			/* No COMPHY, we can switch between 1000BASE-X and SGMII
+			 */
+			__set_bit(PHY_INTERFACE_MODE_1000BASEX,
+				  port->phylink_config.supported_interfaces);
+			__set_bit(PHY_INTERFACE_MODE_SGMII,
+				  port->phylink_config.supported_interfaces);
+		}
+
 		phylink = phylink_create(&port->phylink_config, port_fwnode,
 					 phy_mode, &mvpp2_phylink_ops);
 		if (IS_ERR(phylink)) {