From fe7324b932222574a0721b80e72c6c5fe57960d1 Mon Sep 17 00:00:00 2001 From: Luiz Angelo Daros de Luca Date: Sun, 22 May 2022 22:32:34 -0300 Subject: [PATCH] net: dsa: OF-ware slave_mii_bus If found, register the DSA internally allocated slave_mii_bus with an OF "mdio" child object. It can save some drivers from creating their custom internal MDIO bus. Signed-off-by: Luiz Angelo Daros de Luca Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- net/dsa/dsa2.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/dsa/dsa2.c b/net/dsa/dsa2.c index d0a2452a1e24..cac48a741f27 100644 --- a/net/dsa/dsa2.c +++ b/net/dsa/dsa2.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -852,6 +853,7 @@ static int dsa_switch_setup_tag_protocol(struct dsa_switch *ds) static int dsa_switch_setup(struct dsa_switch *ds) { struct dsa_devlink_priv *dl_priv; + struct device_node *dn; struct dsa_port *dp; int err; @@ -907,7 +909,10 @@ static int dsa_switch_setup(struct dsa_switch *ds) dsa_slave_mii_bus_init(ds); - err = mdiobus_register(ds->slave_mii_bus); + dn = of_get_child_by_name(ds->dev->of_node, "mdio"); + + err = of_mdiobus_register(ds->slave_mii_bus, dn); + of_node_put(dn); if (err < 0) goto free_slave_mii_bus; }