Hi,

On Fri, Feb 04, 2022 at 11:14:56PM +0530, Prasanna Vengateshan wrote:

+static void lan937x_phylink_mac_link_up(struct dsa_switch *ds, int port,
+					unsigned int mode,
+					phy_interface_t interface,
+					struct phy_device *phydev,
+					int speed, int duplex,
+					bool tx_pause, bool rx_pause)
+{
+	struct ksz_device *dev = ds->priv;
+
+	/* Internal PHYs */
+	if (lan937x_is_internal_phy_port(dev, port))
+		return;
+
+	if (phylink_autoneg_inband(mode)) {
+		dev_err(ds->dev, "In-band AN not supported!\n");
+		return;
+	}

No need to check this in the link_up() method - if this were true,
you've already printed an error in the mac_config() method and this
one doesn't provide any additional useful information.

+
+	lan937x_config_interface(dev, port, speed, duplex,
+				 tx_pause, rx_pause);
+}
+
+static void lan937x_phylink_get_caps(struct dsa_switch *ds, int port,
+				     struct phylink_config *config)
+{
+	struct ksz_device *dev = ds->priv;
+
+	config->mac_capabilities = MAC_100FD;
+
+	/* internal T1 PHY */
+	if (lan937x_is_internal_base_t1_phy_port(dev, port)) {
+		__set_bit(PHY_INTERFACE_MODE_INTERNAL,
+			  config->supported_interfaces);
+	} else {
+		/* MII/RMII/RGMII ports */
+		if (!lan937x_is_internal_base_tx_phy_port(dev, port)) {

Please consider:

	} else if (!lan937x_is_internal_base_tx_phy_port(dev, port)) {
		/* MII/RMII/RGMII ports */
		...
	}

to avoid needing two tabs to indent, which probably makes:

+			config->mac_capabilities |= MAC_100HD | MAC_SYM_PAUSE |
+						    MAC_ASYM_PAUSE | MAC_10 |
+						    MAC_1000FD;

able to be laid out with the two pause modes first followed by the
speeds.

+			phy_interface_set_rgmii(config->supported_interfaces);
+
+			__set_bit(PHY_INTERFACE_MODE_MII,
+				  config->supported_interfaces);
+			__set_bit(PHY_INTERFACE_MODE_RMII,
+				  config->supported_interfaces);
+		}
+	}

You seem to be a non-legacy driver in this patch (good!) so please also
add:

	config->legacy_pre_march2020 = false;

while DSA is transitioned over. Thanks.

+}
+
 const struct dsa_switch_ops lan937x_switch_ops = {
 	.get_tag_protocol = lan937x_get_tag_protocol,
 	.setup = lan937x_setup,

Thanks.

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