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

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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: Arun Ramadoss <arun.ramadoss@microchip.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Arun Ramadoss 2022-09-22 12:40:25 +05:30 committed by Jakub Kicinski
parent abc1cb8cbd
commit 68ccceaef0
1 changed files with 2 additions and 4 deletions
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6
drivers/net/dsa/microchip/lan937x_main.c
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@ -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) {