Messages in this thread Patch in this message | | | From | Calvin Johnson <> | Subject | [net-next PATCH v3 5/5] net: mdiobus: Introduce fwnode_mdiobus_register_phy() | Date | Tue, 5 May 2020 18:59:05 +0530 |
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Introduce fwnode_mdiobus_register_phy() to register PHYs on the mdiobus. From the compatible string, identify whether the PHY is c45 and based on this create a PHY device instance which is registered on the mdiobus.
Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com> ---
Changes in v3: Introduce two functions to register phy to mdiobus using fwnode
Changes in v2: None
drivers/net/phy/mdio_bus.c | 41 ++++++++++++++++++++++++++++++++++++++ include/linux/mdio.h | 2 ++ 2 files changed, 43 insertions(+)
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 3e79b96fa344..b51e597c0479 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -106,6 +106,47 @@ int mdiobus_unregister_device(struct mdio_device *mdiodev) } EXPORT_SYMBOL(mdiobus_unregister_device); +int fwnode_mdiobus_register_phy(struct mii_bus *bus, + struct fwnode_handle *child, u32 addr) +{ + struct phy_device *phy; + bool is_c45 = false; + const char *cp; + u32 phy_id; + int rc; + + fwnode_property_read_string(child, "compatible", &cp); + if (!strcmp(cp, "ethernet-phy-ieee802.3-c45")) + is_c45 = true; + + if (!is_c45 && !fwnode_get_phy_id(child, &phy_id)) + phy = phy_device_create(bus, addr, phy_id, 0, NULL); + else + phy = get_phy_device(bus, addr, is_c45); + if (IS_ERR(phy)) + return PTR_ERR(phy); + + phy->irq = bus->irq[addr]; + + /* Associate the fwnode with the device structure so it + * can be looked up later. + */ + phy->mdio.dev.fwnode = child; + + /* All data is now stored in the phy struct, so register it */ + rc = phy_device_register(phy); + if (rc) { + phy_device_free(phy); + fwnode_handle_put(child); + return rc; + } + + dev_dbg(&bus->dev, "registered phy at address %i\n", addr); + + return 0; +} +EXPORT_SYMBOL(fwnode_mdiobus_register_phy); + struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr) { struct mdio_device *mdiodev = bus->mdio_map[addr]; diff --git a/include/linux/mdio.h b/include/linux/mdio.h index 917e4bb2ed71..e55609697b42 100644 --- a/include/linux/mdio.h +++ b/include/linux/mdio.h @@ -330,6 +330,8 @@ int mdiobus_register_device(struct mdio_device *mdiodev); int mdiobus_unregister_device(struct mdio_device *mdiodev); bool mdiobus_is_registered_device(struct mii_bus *bus, int addr); struct phy_device *mdiobus_get_phy(struct mii_bus *bus, int addr); +int fwnode_mdiobus_register_phy(struct mii_bus *bus, + struct fwnode_handle *child, u32 addr); /** * mdio_module_driver() - Helper macro for registering mdio drivers -- 2.17.1
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