From: David Bauer <mail@xxxxxxxxxxxxxxx> The MT753x switches provide a switch-internal MDIO bus for the embedded PHYs. Register a OF sub-node on the switch OF-node for this internal MDIO bus. This allows to configure the embedded PHYs using device-tree. Signed-off-by: David Bauer <mail@xxxxxxxxxxxxxxx> Signed-off-by: Daniel Golle <daniel@xxxxxxxxxxxxxx> --- drivers/net/dsa/mt7530.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/net/dsa/mt7530.c b/drivers/net/dsa/mt7530.c index 8fbda739c1b35..9bb805de397a9 100644 --- a/drivers/net/dsa/mt7530.c +++ b/drivers/net/dsa/mt7530.c @@ -2152,10 +2152,13 @@ mt7530_setup_mdio(struct mt7530_priv *priv) { struct dsa_switch *ds = priv->ds; struct device *dev = priv->dev; + struct device_node *np, *mnp; struct mii_bus *bus; static int idx; int ret; + np = priv->dev->of_node; + bus = devm_mdiobus_alloc(dev); if (!bus) return -ENOMEM; @@ -2174,7 +2177,9 @@ mt7530_setup_mdio(struct mt7530_priv *priv) if (priv->irq) mt7530_setup_mdio_irq(priv); - ret = devm_mdiobus_register(dev, bus); + mnp = of_get_child_by_name(np, "mdio"); + ret = devm_of_mdiobus_register(dev, bus, mnp); + of_node_put(mnp); if (ret) { dev_err(dev, "failed to register MDIO bus: %d\n", ret); if (priv->irq) -- 2.41.0