net: dsa: replace phylink_get_interfaces() with phylink_get_caps()

Phylink needs slightly more information than phylink_get_interfaces()
allows us to get from the DSA drivers - we need the MAC capabilities.
Replace the phylink_get_interfaces() method with phylink_get_caps() to
allow DSA drivers to fill in the phylink_config MAC capabilities field
as well.

Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Marek BehĂșn <kabel@kernel.org>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
diff --git a/include/net/dsa.h b/include/net/dsa.h
index eff5c44..8ca9d50 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h
@@ -645,8 +645,8 @@
 	/*
 	 * PHYLINK integration
 	 */
-	void	(*phylink_get_interfaces)(struct dsa_switch *ds, int port,
-					  unsigned long *supported_interfaces);
+	void	(*phylink_get_caps)(struct dsa_switch *ds, int port,
+				    struct phylink_config *config);
 	void	(*phylink_validate)(struct dsa_switch *ds, int port,
 				    unsigned long *supported,
 				    struct phylink_link_state *state);
diff --git a/net/dsa/port.c b/net/dsa/port.c
index eaa6611..ef0acf0 100644
--- a/net/dsa/port.c
+++ b/net/dsa/port.c
@@ -1091,9 +1091,8 @@
 	if (err)
 		mode = PHY_INTERFACE_MODE_NA;
 
-	if (ds->ops->phylink_get_interfaces)
-		ds->ops->phylink_get_interfaces(ds, dp->index,
-					dp->pl_config.supported_interfaces);
+	if (ds->ops->phylink_get_caps)
+		ds->ops->phylink_get_caps(ds, dp->index, &dp->pl_config);
 
 	dp->pl = phylink_create(&dp->pl_config, of_fwnode_handle(dp->dn),
 				mode, &dsa_port_phylink_mac_ops);