diff mbox series

[net-next,v4,5/9] net: sparx5: only return PCS for modes that require it

Message ID 20241213-sparx5-lan969x-switch-driver-4-v4-5-d1a72c9c4714@microchip.com (mailing list archive)
State New, archived
Headers show
Series net: lan969x: add RGMII support | expand

Commit Message

Daniel Machon Dec. 13, 2024, 1:41 p.m. UTC
The RGMII ports have no PCS to configure. Make sure we only return the
PCS for port modes that require it.

Signed-off-by: Daniel Machon <daniel.machon@microchip.com>
---
 drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

Comments

Russell King (Oracle) Dec. 13, 2024, 7:45 p.m. UTC | #1
On Fri, Dec 13, 2024 at 02:41:04PM +0100, Daniel Machon wrote:
> The RGMII ports have no PCS to configure. Make sure we only return the
> PCS for port modes that require it.
> 
> Signed-off-by: Daniel Machon <daniel.machon@microchip.com>

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

Thanks!
diff mbox series

Patch

diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c b/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c
index f8562c1a894d..035d2f1bea0d 100644
--- a/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c
+++ b/drivers/net/ethernet/microchip/sparx5/sparx5_phylink.c
@@ -32,7 +32,19 @@  sparx5_phylink_mac_select_pcs(struct phylink_config *config,
 {
 	struct sparx5_port *port = netdev_priv(to_net_dev(config->dev));
 
-	return &port->phylink_pcs;
+	/* Return the PCS for all the modes that require it. */
+	switch (interface) {
+	case PHY_INTERFACE_MODE_SGMII:
+	case PHY_INTERFACE_MODE_QSGMII:
+	case PHY_INTERFACE_MODE_1000BASEX:
+	case PHY_INTERFACE_MODE_2500BASEX:
+	case PHY_INTERFACE_MODE_5GBASER:
+	case PHY_INTERFACE_MODE_10GBASER:
+	case PHY_INTERFACE_MODE_25GBASER:
+		return &port->phylink_pcs;
+	default:
+		return NULL;
+	}
 }
 
 static void sparx5_phylink_mac_config(struct phylink_config *config,