46 	struct mdio_mux_parent_bus *pb = cb->parent;  in mdio_mux_read()  local
55 	mutex_lock_nested(&pb->mii_bus->mdio_lock, SINGLE_DEPTH_NESTING);  in mdio_mux_read()
56 	r = pb->switch_fn(pb->current_child, cb->bus_number, pb->switch_data);  in mdio_mux_read()
60 	pb->current_child = cb->bus_number;  in mdio_mux_read()
62 	r = pb->mii_bus->read(pb->mii_bus, phy_id, regnum);  in mdio_mux_read()
64 	mutex_unlock(&pb->mii_bus->mdio_lock);  in mdio_mux_read()
76 	struct mdio_mux_parent_bus *pb = cb->parent;  in mdio_mux_write()  local
80 	mutex_lock_nested(&pb->mii_bus->mdio_lock, SINGLE_DEPTH_NESTING);  in mdio_mux_write()
81 	r = pb->switch_fn(pb->current_child, cb->bus_number, pb->switch_data);  in mdio_mux_write()
85 	pb->current_child = cb->bus_number;  in mdio_mux_write()
87 	r = pb->mii_bus->write(pb->mii_bus, phy_id, regnum, val);  in mdio_mux_write()
89 	mutex_unlock(&pb->mii_bus->mdio_lock);  in mdio_mux_write()
105 	struct mdio_mux_parent_bus *pb;  in mdio_mux_init()  local
116 	pb = devm_kzalloc(dev, sizeof(*pb), GFP_KERNEL);  in mdio_mux_init()
117 	if (pb == NULL) {  in mdio_mux_init()
128 	pb->switch_data = data;  in mdio_mux_init()
129 	pb->switch_fn = switch_fn;  in mdio_mux_init()
130 	pb->current_child = -1;  in mdio_mux_init()
131 	pb->parent_id = parent_count++;  in mdio_mux_init()
132 	pb->mii_bus = parent_bus;  in mdio_mux_init()
151 		cb->parent = pb;  in mdio_mux_init()
163 			 pb->parent_id, v);  in mdio_mux_init()
173 			cb->next = pb->children;  in mdio_mux_init()
174 			pb->children = cb;  in mdio_mux_init()
177 	if (pb->children) {  in mdio_mux_init()
178 		*mux_handle = pb;  in mdio_mux_init()
184 	put_device(&pb->mii_bus->dev);  in mdio_mux_init()
194 	struct mdio_mux_parent_bus *pb = mux_handle;  in mdio_mux_uninit()  local
195 	struct mdio_mux_child_bus *cb = pb->children;  in mdio_mux_uninit()
204 	put_device(&pb->mii_bus->dev);  in mdio_mux_uninit()