diff options
| -rw-r--r-- | drivers/net/mdio/mdio-realtek-rtl9300.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/net/mdio/mdio-realtek-rtl9300.c b/drivers/net/mdio/mdio-realtek-rtl9300.c index bd361aa19739..92c8f2512476 100644 --- a/drivers/net/mdio/mdio-realtek-rtl9300.c +++ b/drivers/net/mdio/mdio-realtek-rtl9300.c @@ -432,6 +432,21 @@ static int otto_emdio_probe_one(struct device *dev, struct otto_emdio_priv *priv return 0; } +static struct device_node *otto_emdio_get_bus_node(struct device_node *dn) +{ + struct device_node *parent = of_get_parent(dn); + struct device_node *grandparent; + + if (parent && of_node_name_eq(parent, "ethernet-phy-package")) { + grandparent = of_get_parent(parent); + of_node_put(parent); + + return grandparent; + } + + return parent; +} + /* The mdio-controller is part of a switch block so we parse the sibling * ethernet-ports node and build a mapping of the switch port to MDIO bus/addr * based on the phy-handle. @@ -457,7 +472,7 @@ static int otto_emdio_map_ports(struct device *dev) if (!phy_dn) continue; - bus_dn = of_get_parent(phy_dn); + bus_dn = otto_emdio_get_bus_node(phy_dn); if (!bus_dn) goto put_nodes; |