Commit 4d98bb0d authored by Sean Anderson's avatar Sean Anderson Committed by David S. Miller
Browse files

net: macb: Use mdio child node for MDIO bus if it exists 



This allows explicitly specifying which children are present on the mdio
bus. Additionally, it allows for non-phy MDIO devices on the bus.

Signed-off-by: default avatarSean Anderson <sean.anderson@seco.com>
Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 25790844

drivers/net/ethernet/cadence/macb_main.c

+11 −0
Original line number Diff line number Diff line
@@ -898,6 +898,17 @@ static int macb_mdiobus_register(struct macb *bp) 
{

	struct device_node *child, *np = bp->pdev->dev.of_node;



	/* If we have a child named mdio, probe it instead of looking for PHYs

	 * directly under the MAC node

	 */

	child = of_get_child_by_name(np, "mdio");

	if (np) {

		int ret = of_mdiobus_register(bp->mii_bus, child);



		of_node_put(child);

		return ret;

	}



	if (of_phy_is_fixed_link(np))

		return mdiobus_register(bp->mii_bus);