3  * OF helpers for the MDIO (Ethernet PHY) API
28 MODULE_DESCRIPTION("OpenFirmware MDIO bus (Ethernet PHY) accessors");
37 int of_mdiobus_phy_device_register(struct mii_bus *mdio, struct phy_device *phy,  in of_mdiobus_phy_device_register()  argument
40 	return fwnode_mdiobus_phy_device_register(mdio, phy,  in of_mdiobus_phy_device_register()
46 static int of_mdiobus_register_phy(struct mii_bus *mdio,  in of_mdiobus_register_phy()  argument
49 	return fwnode_mdiobus_register_phy(mdio, of_fwnode_handle(child), addr);  in of_mdiobus_register_phy()
52 static int of_mdiobus_register_device(struct mii_bus *mdio,  in of_mdiobus_register_device()  argument
59 	mdiodev = mdio_device_create(mdio, addr);  in of_mdiobus_register_device()
78 	dev_dbg(&mdio->dev, "registered mdio device %pOFn at address %i\n",  in of_mdiobus_register_device()
86  * to have a compatible string, so they can be matched to an MDIO
142 static int __of_mdiobus_parse_phys(struct mii_bus *mdio, struct device_node *np,  in __of_mdiobus_parse_phys()  argument
155 			rc = __of_mdiobus_parse_phys(mdio, child, NULL);  in __of_mdiobus_parse_phys()
162 		addr = of_mdio_parse_addr(&mdio->dev, child);  in __of_mdiobus_parse_phys()
171 			rc = of_mdiobus_register_phy(mdio, child, addr);  in __of_mdiobus_parse_phys()
173 			rc = of_mdiobus_register_device(mdio, child, addr);  in __of_mdiobus_parse_phys()
176 			dev_err(&mdio->dev,  in __of_mdiobus_parse_phys()
177 				"MDIO device at address %d is missing.\n",  in __of_mdiobus_parse_phys()
191  * @mdio: pointer to mii_bus structure
192  * @np: pointer to device_node of MDIO bus.
193  * @owner: module owning the @mdio object.
198 int __of_mdiobus_register(struct mii_bus *mdio, struct device_node *np,  in __of_mdiobus_register()  argument
206 		return __mdiobus_register(mdio, owner);  in __of_mdiobus_register()
214 	mdio->phy_mask = ~0;  in __of_mdiobus_register()
216 	device_set_node(&mdio->dev, of_fwnode_handle(np));  in __of_mdiobus_register()
219 	mdio->reset_delay_us = DEFAULT_GPIO_RESET_DELAY;  in __of_mdiobus_register()
220 	of_property_read_u32(np, "reset-delay-us", &mdio->reset_delay_us);  in __of_mdiobus_register()
221 	mdio->reset_post_delay_us = 0;  in __of_mdiobus_register()
222 	of_property_read_u32(np, "reset-post-delay-us", &mdio->reset_post_delay_us);  in __of_mdiobus_register()
224 	/* Register the MDIO bus */  in __of_mdiobus_register()
225 	rc = __mdiobus_register(mdio, owner);  in __of_mdiobus_register()
230 	rc = __of_mdiobus_parse_phys(mdio, np, &scanphys);  in __of_mdiobus_register()
246 			if (mdiobus_is_registered_device(mdio, addr))  in __of_mdiobus_register()
250 			dev_info(&mdio->dev, "scan phy %pOFn at address %i\n",  in __of_mdiobus_register()
258 				rc = of_mdiobus_register_phy(mdio, child, addr);  in __of_mdiobus_register()
272 	mdiobus_unregister(mdio);  in __of_mdiobus_register()
332 	put_device(&phy->mdio.dev);  in of_phy_connect()
475 	put_device(&phydev->mdio.dev);	/* of_phy_find_device() */  in of_phy_deregister_fixed_link()