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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 Cc: Diana Madalina Craciun , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Laurentiu Tudor , linux-acpi@vger.kernel.org, linux.cj@gmail.com, linux-arm-kernel@lists.infradead.org, Calvin Johnson , "David S. Miller" , Heiner Kallweit , Jakub Kicinski Subject: [net-next PATCH v3 02/15] net: phy: Introduce fwnode_mdio_find_device() Date: Tue, 12 Jan 2021 19:10:41 +0530 Message-Id: <20210112134054.342-3-calvin.johnson@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210112134054.342-1-calvin.johnson@oss.nxp.com> References: <20210112134054.342-1-calvin.johnson@oss.nxp.com> X-Originating-IP: [14.142.151.118] X-ClientProxiedBy: SG2PR02CA0047.apcprd02.prod.outlook.com (2603:1096:3:18::35) 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 SG2PR02CA0047.apcprd02.prod.outlook.com (2603:1096:3:18::35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3742.6 via Frontend Transport; Tue, 12 Jan 2021 13:41:34 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: c3f1d1dc-f09b-48ce-eefa-08d8b6ffcaa8 X-MS-TrafficTypeDiagnostic: AM0PR0402MB3443: 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: i8wnilx2HO5l9J9Ja9ErjF0aD5WC8QHZsNmKb8Rug+ozdaIqiCBopIFrX1BoQQ+Mp8JEa8PcFpngrA3SuVn9HhxC1CN/3re3LSJX/rtyEIrRTOXxBgEGdlthNhfcBZCNxy7tcjVvIQ+KXOprQMVX7JH51r6UfKoqEU0McaJVThSQV1DR1aLrylS+CVTzwImP88C7WMtcdvZgYcyWC57G9tlF0BW6ve1hhPCbUGcPMsWdPRGcuvs0rT3NFEXwwRSNZ/SdaGieX/a9PeG+a1VFrMxIcLBDsBi0hOSI6B272bL1V50TGwIcudvaEUCk5F/zn4ASW82S3TImergYXnalrFhcpH/SiHDCJZyK7odfn2f98+Sr8sSd/IRpQiItE3x9CD6r5Ql0achWlUa+IxnXrXvs/B1tZgXZfYuIvJrSae8zaaL/0LoAoKcCjBpcQR9D6qfZPq/saI8qDVluEso2mQ== 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)(346002)(136003)(39850400004)(376002)(396003)(366004)(478600001)(1006002)(66946007)(921005)(110136005)(6506007)(54906003)(16526019)(83380400001)(6666004)(52116002)(2616005)(66556008)(66476007)(186003)(7416002)(4326008)(956004)(1076003)(44832011)(86362001)(55236004)(8676002)(6486002)(6512007)(26005)(5660300002)(316002)(8936002)(2906002)(110426009); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB5636.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Jan 2021 13:41:40.5190 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-Network-Message-Id: c3f1d1dc-f09b-48ce-eefa-08d8b6ffcaa8 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: sBEEGRohFTPPtsIc4YqbRg5YKKCXYqXr3Ge0SbCzzB2Lqbr6mJDwhvku2dQpFsnKJIJ2xYJOrAKfDQp+0ZMaxQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR0402MB3443 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Define fwnode_mdio_find_device() to get a pointer to the mdio_device from fwnode passed to the function. Signed-off-by: Calvin Johnson --- 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 9effb511acde..ce3987e4e615 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1342,11 +1342,17 @@ 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;