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Fri, 10 Jul 2020 16:31:51 +0000 From: Calvin Johnson To: Jeremy Linton , Russell King - ARM Linux admin , Jon , Cristi Sovaiala , Ioana Ciornei , Andrew Lunn , Andy Shevchenko , Florian Fainelli , Madalin Bucur Cc: netdev@vger.kernel.org, linux.cj@gmail.com, linux-acpi@vger.kernel.org, Calvin Johnson Subject: [net-next PATCH v5 2/6] net: phy: introduce device_mdiobus_register() Date: Fri, 10 Jul 2020 22:01:11 +0530 Message-Id: <20200710163115.2740-3-calvin.johnson@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200710163115.2740-1-calvin.johnson@oss.nxp.com> References: <20200710163115.2740-1-calvin.johnson@oss.nxp.com> X-ClientProxiedBy: SG2PR06CA0137.apcprd06.prod.outlook.com (2603:1096:1:1f::15) To AM0PR04MB5636.eurprd04.prod.outlook.com (2603:10a6:208:130::22) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv03152.swis.in-blr01.nxp.com (14.142.151.118) by SG2PR06CA0137.apcprd06.prod.outlook.com (2603:1096:1:1f::15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3174.20 via Frontend Transport; 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Signed-off-by: Calvin Johnson --- Changes in v5: - add description - clean up if else Changes in v4: None Changes in v3: None Changes in v2: None drivers/net/phy/mdio_bus.c | 27 +++++++++++++++++++++++++++ include/linux/mdio.h | 1 + 2 files changed, 28 insertions(+) diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 46b33701ad4b..2b6f22e64ad1 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -501,6 +501,33 @@ static int mdiobus_create_device(struct mii_bus *bus, return ret; } +/** + * device_mdiobus_register - bring up all the PHYs on a given bus and + * attach them to bus. This handles both DT and ACPI methods. + * @bus: target mii_bus + * @dev: given MDIO device + * + * Description: Given an MDIO device and target mii bus, this function + * calls of_mdiobus_register() for DT node and mdiobus_register() in + * case of ACPI. + * + * Returns 0 on success or negative error code on failure. + */ +int device_mdiobus_register(struct mii_bus *bus, + struct device *dev) +{ + struct fwnode_handle *fwnode = dev_fwnode(dev); + + if (is_of_node(fwnode)) + return of_mdiobus_register(bus, to_of_node(fwnode)); + if (fwnode) { + bus->dev.fwnode = fwnode; + return mdiobus_register(bus); + } + return -ENODEV; +} +EXPORT_SYMBOL(device_mdiobus_register); + /** * __mdiobus_register - bring up all the PHYs on a given bus and attach them to bus * @bus: target mii_bus diff --git a/include/linux/mdio.h b/include/linux/mdio.h index 898cbf00332a..f78c6a7f8eb7 100644 --- a/include/linux/mdio.h +++ b/include/linux/mdio.h @@ -358,6 +358,7 @@ static inline int mdiobus_c45_read(struct mii_bus *bus, int prtad, int devad, return mdiobus_read(bus, prtad, mdiobus_c45_addr(devad, regnum)); } +int device_mdiobus_register(struct mii_bus *bus, struct device *dev); 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);