44 	struct mdio_mux_parent_bus *pb = cb->parent;  in mdio_mux_read()  local
47 	mutex_lock_nested(&pb->mii_bus->mdio_lock, MDIO_MUTEX_MUX);  in mdio_mux_read()
48 	r = pb->switch_fn(pb->current_child, cb->bus_number, pb->switch_data);  in mdio_mux_read()
52 	pb->current_child = cb->bus_number;  in mdio_mux_read()
54 	r = pb->mii_bus->read(pb->mii_bus, phy_id, regnum);  in mdio_mux_read()
56 	mutex_unlock(&pb->mii_bus->mdio_lock);  in mdio_mux_read()
68 	struct mdio_mux_parent_bus *pb = cb->parent;  in mdio_mux_write()  local
72 	mutex_lock_nested(&pb->mii_bus->mdio_lock, MDIO_MUTEX_MUX);  in mdio_mux_write()
73 	r = pb->switch_fn(pb->current_child, cb->bus_number, pb->switch_data);  in mdio_mux_write()
77 	pb->current_child = cb->bus_number;  in mdio_mux_write()
79 	r = pb->mii_bus->write(pb->mii_bus, phy_id, regnum, val);  in mdio_mux_write()
81 	mutex_unlock(&pb->mii_bus->mdio_lock);  in mdio_mux_write()
99 	struct mdio_mux_parent_bus *pb;  in mdio_mux_init()  local
123 	pb = devm_kzalloc(dev, sizeof(*pb), GFP_KERNEL);  in mdio_mux_init()
124 	if (!pb) {  in mdio_mux_init()
129 	pb->switch_data = data;  in mdio_mux_init()
130 	pb->switch_fn = switch_fn;  in mdio_mux_init()
131 	pb->current_child = -1;  in mdio_mux_init()
132 	pb->parent_id = parent_count++;  in mdio_mux_init()
133 	pb->mii_bus = parent_bus;  in mdio_mux_init()
153 		cb->parent = pb;  in mdio_mux_init()
165 			 pb->parent_id, v);  in mdio_mux_init()
177 			cb->next = pb->children;  in mdio_mux_init()
178 			pb->children = cb;  in mdio_mux_init()
181 	if (pb->children) {  in mdio_mux_init()
182 		*mux_handle = pb;  in mdio_mux_init()
187 	devm_kfree(dev, pb);  in mdio_mux_init()
198 	struct mdio_mux_parent_bus *pb = mux_handle;  in mdio_mux_uninit()  local
199 	struct mdio_mux_child_bus *cb = pb->children;  in mdio_mux_uninit()
207 	put_device(&pb->mii_bus->dev);  in mdio_mux_uninit()