drivers/of/of_mdio.c

26  * of_mdiobus_register - Register mii_bus and create PHYs from the device tree
30  * This function registers the mii_bus structure and registers a phy_device
31  * for each child node of @np.
36 	struct device_node *child;  in of_mdiobus_register()  local
41 	mdio->phy_mask = ~0;  in of_mdiobus_register()
44 	if (mdio->irq)  in of_mdiobus_register()
46 			mdio->irq[i] = PHY_POLL;  in of_mdiobus_register()
53 	/* Loop over the child nodes and register a phy_device for each one */  in of_mdiobus_register()
54 	for_each_child_of_node(np, child) {  in of_mdiobus_register()
59 		/* A PHY must have a reg property in the range [0-31] */  in of_mdiobus_register()
60 		paddr = of_get_property(child, "reg", &len);  in of_mdiobus_register()
62 			dev_err(&mdio->dev, "%s has invalid PHY address\n",  in of_mdiobus_register()
63 				child->full_name);  in of_mdiobus_register()
69 			dev_err(&mdio->dev, "%s PHY address %i is too large\n",  in of_mdiobus_register()
70 				child->full_name, addr);  in of_mdiobus_register()
74 		if (mdio->irq) {  in of_mdiobus_register()
75 			mdio->irq[addr] = irq_of_parse_and_map(child, 0);  in of_mdiobus_register()
76 			if (!mdio->irq[addr])  in of_mdiobus_register()
77 				mdio->irq[addr] = PHY_POLL;  in of_mdiobus_register()
82 			dev_err(&mdio->dev, "error probing PHY at address %i\n",  in of_mdiobus_register()
87 		/* Associate the OF node with the device structure so it  in of_mdiobus_register()
89 		of_node_get(child);  in of_mdiobus_register()
90 		phy->dev.of_node = child;  in of_mdiobus_register()
96 			of_node_put(child);  in of_mdiobus_register()
100 		dev_dbg(&mdio->dev, "registered phy %s at address %i\n",  in of_mdiobus_register()
101 			child->name, addr);  in of_mdiobus_register()
111 	return dev->of_node == phy_np;  in of_phy_match()
115  * of_phy_find_device - Give a PHY node, find the phy_device
116  * @phy_np: Pointer to the phy's device tree node
118  * Returns a pointer to the phy_device.
132  * of_phy_connect - Connect to the phy described in the device tree
134  * @phy_np: Pointer to device tree node for the PHY
138  * Returns a pointer to the phy_device if successful.  NULL otherwise
155  * of_phy_connect_fixed_link - Parse fixed-link property and return a dummy phy
160  * This function is a temporary stop-gap and will be removed soon.  It is
174 	if (!dev->dev.parent)  in of_phy_connect_fixed_link()
177 	net_np = dev->dev.parent->of_node;  in of_phy_connect_fixed_link()
181 	phy_id = of_get_property(net_np, "fixed-link", &sz);  in of_phy_connect_fixed_link()
185 	sprintf(bus_id, PHY_ID_FMT, "fixed-0", be32_to_cpu(phy_id[0]));  in of_phy_connect_fixed_link()