net/mdio/mdio-mux.c

18 	struct mii_bus *mii_bus;
29 	struct mii_bus *mii_bus;
38 static int mdio_mux_read(struct mii_bus *bus, int phy_id, int regnum)
44 	mutex_lock_nested(&pb->mii_bus->mdio_lock, MDIO_MUTEX_MUX);
51 	r = pb->mii_bus->read(pb->mii_bus, phy_id, regnum);
53 	mutex_unlock(&pb->mii_bus->mdio_lock);
58 static int mdio_mux_read_c45(struct mii_bus *bus, int phy_id, int dev_addr,
65 	mutex_lock_nested(&pb->mii_bus->mdio_lock, MDIO_MUTEX_MUX);
72 	r = pb->mii_bus->read_c45(pb->mii_bus, phy_id, dev_addr, regnum);
74 	mutex_unlock(&pb->mii_bus->mdio_lock);
82 static int mdio_mux_write(struct mii_bus *bus, int phy_id,
90 	mutex_lock_nested(&pb->mii_bus->mdio_lock, MDIO_MUTEX_MUX);
97 	r = pb->mii_bus->write(pb->mii_bus, phy_id, regnum, val);
99 	mutex_unlock(&pb->mii_bus->mdio_lock);
104 static int mdio_mux_write_c45(struct mii_bus *bus, int phy_id, int dev_addr,
112 	mutex_lock_nested(&pb->mii_bus->mdio_lock, MDIO_MUTEX_MUX);
119 	r = pb->mii_bus->write_c45(pb->mii_bus, phy_id, dev_addr, regnum, val);
121 	mutex_unlock(&pb->mii_bus->mdio_lock);
133 		mdiobus_unregister(cb->mii_bus);
134 		mdiobus_free(cb->mii_bus);
144 		  struct mii_bus *mux_bus)
149 	struct mii_bus *parent_bus;
184 	pb->mii_bus = parent_bus;
206 		cb->mii_bus = mdiobus_alloc();
207 		if (!cb->mii_bus) {
211 		cb->mii_bus->priv = cb;
213 		cb->mii_bus->name = "mdio_mux";
214 		snprintf(cb->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x.%x",
215 			 cb->mii_bus->name, pb->parent_id, v);
216 		cb->mii_bus->parent = dev;
218 			cb->mii_bus->read = mdio_mux_read;
220 			cb->mii_bus->write = mdio_mux_write;
222 			cb->mii_bus->read_c45 = mdio_mux_read_c45;
224 			cb->mii_bus->write_c45 = mdio_mux_write_c45;
225 		r = of_mdiobus_register(cb->mii_bus, child_bus_node);
227 			mdiobus_free(cb->mii_bus);
264 	put_device(&pb->mii_bus->dev);