1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
9 #define ENETC_MDIO_BUS_NAME	ENETC_MDIO_DEV_NAME " Bus"
16 	struct device *dev = &pdev->dev;  in enetc_pci_mdio_probe()
19 	struct mii_bus *bus;  in enetc_pci_mdio_probe()  local
20 	int err;  in enetc_pci_mdio_probe()  local
25 		err = -ENXIO;  in enetc_pci_mdio_probe()
31 		err = PTR_ERR(hw);  in enetc_pci_mdio_probe()
35 	bus = devm_mdiobus_alloc_size(dev, sizeof(*mdio_priv));  in enetc_pci_mdio_probe()
36 	if (!bus) {  in enetc_pci_mdio_probe()
37 		err = -ENOMEM;  in enetc_pci_mdio_probe()
41 	bus->name = ENETC_MDIO_BUS_NAME;  in enetc_pci_mdio_probe()
42 	bus->read = enetc_mdio_read_c22;  in enetc_pci_mdio_probe()
43 	bus->write = enetc_mdio_write_c22;  in enetc_pci_mdio_probe()
44 	bus->read_c45 = enetc_mdio_read_c45;  in enetc_pci_mdio_probe()
45 	bus->write_c45 = enetc_mdio_write_c45;  in enetc_pci_mdio_probe()
46 	bus->parent = dev;  in enetc_pci_mdio_probe()
47 	mdio_priv = bus->priv;  in enetc_pci_mdio_probe()
48 	mdio_priv->hw = hw;  in enetc_pci_mdio_probe()
49 	mdio_priv->mdio_base = ENETC_EMDIO_BASE;  in enetc_pci_mdio_probe()
50 	snprintf(bus->id, MII_BUS_ID_SIZE, "%s", dev_name(dev));  in enetc_pci_mdio_probe()
53 	err = pci_enable_device_mem(pdev);  in enetc_pci_mdio_probe()
54 	if (err) {  in enetc_pci_mdio_probe()
59 	err = pci_request_region(pdev, 0, KBUILD_MODNAME);  in enetc_pci_mdio_probe()
60 	if (err) {  in enetc_pci_mdio_probe()
65 	err = of_mdiobus_register(bus, dev->of_node);  in enetc_pci_mdio_probe()
66 	if (err)  in enetc_pci_mdio_probe()
69 	pci_set_drvdata(pdev, bus);  in enetc_pci_mdio_probe()
82 	return err;  in enetc_pci_mdio_probe()
87 	struct mii_bus *bus = pci_get_drvdata(pdev);  in enetc_pci_mdio_remove()  local
90 	mdiobus_unregister(bus);  in enetc_pci_mdio_remove()
91 	mdio_priv = bus->priv;  in enetc_pci_mdio_remove()
92 	iounmap(mdio_priv->hw->port);  in enetc_pci_mdio_remove()