Commit 68ccceae authored by Arun Ramadoss's avatar Arun Ramadoss Committed by Jakub Kicinski
Browse files

net: dsa: microchip: lan937x: return zero if mdio node not present 



Currently, if the mdio node is not present in the dts file then
lan937x_mdio_register return -ENODEV and entire probing process fails.
To make the mdio_register generic for all ksz series switches and to
maintain back-compatibility with existing dts file, return -ENODEV is
replaced with return 0.

Signed-off-by: default avatarArun Ramadoss <arun.ramadoss@microchip.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent abc1cb8c

drivers/net/dsa/microchip/lan937x_main.c

+2 −4
Original line number Diff line number Diff line
@@ -214,10 +214,8 @@ static int lan937x_mdio_register(struct ksz_device *dev) 
	int ret;



	mdio_np = of_get_child_by_name(dev->dev->of_node, "mdio");

	if (!mdio_np) {

		dev_err(ds->dev, "no MDIO bus node\n");

		return -ENODEV;

	}

	if (!mdio_np)

		return 0;



	bus = devm_mdiobus_alloc(ds->dev);

	if (!bus) {