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Wysocki" , Jeremy Linton , Andrew Lunn , Andy Shevchenko , Florian Fainelli , Russell King - ARM Linux admin , Cristi Sovaiala , Florin Laurentiu Chiculita , Ioana Ciornei , Madalin Bucur , Heikki Krogerus , Marcin Wojtas , Pieter Jansen Van Vuuren , Jon , Saravana Kannan , Randy Dunlap Cc: Laurentiu Tudor , linux-kernel@vger.kernel.org, linux.cj@gmail.com, Diana Madalina Craciun , netdev@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-acpi@vger.kernel.org, Calvin Johnson , "David S. Miller" , Heiner Kallweit , Jakub Kicinski Subject: [net-next PATCH v5 02/15] net: phy: Introduce fwnode_mdio_find_device() Date: Mon, 8 Feb 2021 20:42:31 +0530 Message-Id: <20210208151244.16338-3-calvin.johnson@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210208151244.16338-1-calvin.johnson@oss.nxp.com> References: <20210208151244.16338-1-calvin.johnson@oss.nxp.com> X-Originating-IP: [14.142.151.118] X-ClientProxiedBy: SG2PR04CA0176.apcprd04.prod.outlook.com (2603:1096:4:14::14) 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 SG2PR04CA0176.apcprd04.prod.outlook.com (2603:1096:4:14::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3825.19 via Frontend Transport; Mon, 8 Feb 2021 15:13:25 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: cc86f187-1312-40fd-dff2-08d8cc44187b X-MS-TrafficTypeDiagnostic: AM0PR04MB6435: X-MS-Exchange-SharedMailbox-RoutingAgent-Processed: True X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:5797; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:AM0PR04MB5636.eurprd04.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(366004)(39860400002)(136003)(376002)(346002)(396003)(8936002)(54906003)(7416002)(52116002)(110136005)(186003)(16526019)(316002)(55236004)(956004)(6486002)(6666004)(1006002)(4326008)(2906002)(478600001)(6512007)(1076003)(6506007)(5660300002)(921005)(44832011)(83380400001)(86362001)(66556008)(26005)(2616005)(66476007)(66946007)(8676002)(110426009); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: cc86f187-1312-40fd-dff2-08d8cc44187b X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB5636.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 08 Feb 2021 15:13:31.6827 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: SWzSnfYyT+ZRTcqRbjrSESXHl+u+XA8MLcEHtxxpuToVlznycBdhUEgasR0XGVeTnXaN4NDAfecUBrOAvzYrdw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB6435 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Define fwnode_mdio_find_device() to get a pointer to the mdio_device from fwnode passed to the function. Refactor of_mdio_find_device() to use fwnode_mdio_find_device(). Signed-off-by: Calvin Johnson --- Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None drivers/net/mdio/of_mdio.c | 11 +---------- drivers/net/phy/phy_device.c | 23 +++++++++++++++++++++++ include/linux/phy.h | 6 ++++++ 3 files changed, 30 insertions(+), 10 deletions(-) diff --git a/drivers/net/mdio/of_mdio.c b/drivers/net/mdio/of_mdio.c index 4daf94bb56a5..7bd33b930116 100644 --- a/drivers/net/mdio/of_mdio.c +++ b/drivers/net/mdio/of_mdio.c @@ -347,16 +347,7 @@ EXPORT_SYMBOL(of_mdiobus_register); */ struct mdio_device *of_mdio_find_device(struct device_node *np) { - struct device *d; - - if (!np) - return NULL; - - d = bus_find_device_by_of_node(&mdio_bus_type, np); - if (!d) - return NULL; - - return to_mdio_device(d); + return fwnode_mdio_find_device(of_fwnode_handle(np)); } EXPORT_SYMBOL(of_mdio_find_device); diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 8447e56ba572..06e0ddcca8c9 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -2829,6 +2829,29 @@ static bool phy_drv_supports_irq(struct phy_driver *phydrv) return phydrv->config_intr && phydrv->handle_interrupt; } +/** + * fwnode_mdio_find_device - Given a fwnode, find the mdio_device + * @np: pointer to the mdio_device's fwnode + * + * If successful, returns a pointer to the mdio_device with the embedded + * struct device refcount incremented by one, or NULL on failure. + * The caller should call put_device() on the mdio_device after its use + */ +struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode) +{ + struct device *d; + + if (!fwnode) + return NULL; + + d = bus_find_device_by_fwnode(&mdio_bus_type, fwnode); + if (!d) + return NULL; + + return to_mdio_device(d); +} +EXPORT_SYMBOL(fwnode_mdio_find_device); + /** * phy_probe - probe and init a PHY device * @dev: device to probe and init diff --git a/include/linux/phy.h b/include/linux/phy.h index bc323fbdd21e..8314051d384a 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1349,11 +1349,17 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, u32 phy_id, bool is_c45, struct phy_c45_device_ids *c45_ids); #if IS_ENABLED(CONFIG_PHYLIB) +struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode); struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45); int phy_device_register(struct phy_device *phy); void phy_device_free(struct phy_device *phydev); #else static inline +struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode) +{ + return 0; +} +static inline struct phy_device *get_phy_device(struct mii_bus *bus, int addr, bool is_c45) { return NULL;