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

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
...@@ -898,6 +898,17 @@ static int macb_mdiobus_register(struct macb *bp) ...@@ -898,6 +898,17 @@ static int macb_mdiobus_register(struct macb *bp)
{ {
struct device_node *child, *np = bp->pdev->dev.of_node; 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)) if (of_phy_is_fixed_link(np))
return mdiobus_register(bp->mii_bus); return mdiobus_register(bp->mii_bus);
......
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