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Commit 1eb59443 authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
Browse files

net: dsa: Provide a slave MII bus if needed 



Mimic what net/dsa/dsa.c does and provide a slave MII bus by default
which will be created if the driver implements a phy_read method.

Reviewed-by: default avatarAndrew Lunn <andrew@lunn.ch>
Reviewed-by: default avatarVivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6e830d8f

net/dsa/dsa2.c

+15 −0
Original line number Diff line number Diff line
@@ -312,6 +312,18 @@ static int dsa_ds_apply(struct dsa_switch_tree *dst, struct dsa_switch *ds) 
	if (err < 0)

		return err;



	if (!ds->slave_mii_bus && ds->drv->phy_read) {

		ds->slave_mii_bus = devm_mdiobus_alloc(ds->dev);

		if (!ds->slave_mii_bus)

			return -ENOMEM;



		dsa_slave_mii_bus_init(ds);



		err = mdiobus_register(ds->slave_mii_bus);

		if (err < 0)

			return err;

	}



	for (index = 0; index < DSA_MAX_PORTS; index++) {

		port = ds->ports[index].dn;

		if (!port)
@@ -361,6 +373,9 @@ static void dsa_ds_unapply(struct dsa_switch_tree *dst, struct dsa_switch *ds) 


		dsa_user_port_unapply(port, index, ds);

	}



	if (ds->slave_mii_bus && ds->drv->phy_read)

		mdiobus_unregister(ds->slave_mii_bus);

}



static int dsa_dst_apply(struct dsa_switch_tree *dst)