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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: linux.cj@gmail.com, Diana Madalina Craciun , linux-acpi@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, Laurentiu Tudor , Calvin Johnson , "David S. Miller" , Heiner Kallweit , Jakub Kicinski Subject: [net-next PATCH v4 05/15] net: phy: Introduce fwnode_get_phy_id() Date: Fri, 22 Jan 2021 21:12:50 +0530 Message-Id: <20210122154300.7628-6-calvin.johnson@oss.nxp.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210122154300.7628-1-calvin.johnson@oss.nxp.com> References: <20210122154300.7628-1-calvin.johnson@oss.nxp.com> X-Originating-IP: [14.142.151.118] X-ClientProxiedBy: SG2PR06CA0117.apcprd06.prod.outlook.com (2603:1096:1:1d::19) 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 SG2PR06CA0117.apcprd06.prod.outlook.com (2603:1096:1:1d::19) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3784.12 via Frontend Transport; Fri, 22 Jan 2021 15:44:10 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 4e049d92-9a23-47e9-413b-08d8beec931e 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:4714; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: uGhNar0+3+Hu9OA5+J0K25Ax4xRXdjOcylSjpNEH59l+ElY9jSGcXHrS3/qlA5q5wDtovyM91LRWIRenvf66dRh29QMs3y3TrUJjcuYUNLqbEdaRaxMmmvYmn49QQ5vC3gihs1FhIctXW5hRvw0jMrCXiwKM0axDpwuohznJ+tGjl9kK4yy+5uiHd9aKRXJpaLrRuPZRKaR0/CuBJC0qxjfMWMLiNOVq4P++o/WbbjLwBVejV6vBDKcXUYAg8oq73dVpeMClHUb6QWnbTTRPU8yPt3KR1wbkUecDC++PhYni0E8Y+4IK6Wg+dSJ9Efgb5hwYqoheC8xipmfcAuptPFD4af9jYnXN34nXrWE1NWvspo8m/UtLjGHtrJpqwIsKS7vOsQYdBQa3CfGs2KX7XH9M4aHagIM2Zq5eLqlOIVdUdawLglHe3Ca8FdnC4E4CepaRK7i0a5jTFYy91fhnxg== 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)(376002)(346002)(136003)(396003)(39850400004)(366004)(2906002)(6506007)(921005)(6512007)(6666004)(186003)(5660300002)(1006002)(16526019)(52116002)(54906003)(956004)(55236004)(8676002)(66556008)(8936002)(66476007)(2616005)(66946007)(1076003)(478600001)(26005)(110136005)(86362001)(316002)(7416002)(4326008)(6486002)(44832011)(110426009); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: +6P6wZqMBeZIe9KWsOi0Muxreb/tWPy7zXa/K9yNyxh6EoIi9mo0FTzhY/XlvGnTL1enYQUxMv80Q8y5qyNwrHBij2urqMpaZ7cykOc/+fzlz1gHIzjFe3OsMGlgS9pROHMkaqEK9j7/qUNX2xUWoJojQjnMHWtRFM7kVWpJea+oiy96JFQCUOxUoII4J2D5p5haMA/rhm1S2CL54dQAzM4eGRMkAiNpL5M95NvKVV615w8tLCEIn4seuWrrJ1bcXc9+ayCIzL0WvwiVfH8Po+ZEdMV8VUdPkYHKG1Sv+zRNhVyLz+OmjBrrYjAUj2R3dL+8Ol5+zKkzDE/aDwcJjpTMpcT5vncGRSD8vgS9VrF38nSxgJFIUlHPgoYx6M+7JSQOJbT4a7s0rR1Lh0w5tTPU3DQGspCEpf97U7bdPsxbYF0DcjE5175EvSZ4Gukq4y8CxotW3j5ISjfw+pIs23j4Mk4PGwccYn29F6Gf9MxriXj+E3UZjA5rD8zVhzJLSSCND4mXhyptBT02gZmViuKuD8jW9LJEY64hSny0bc/VjTfMjnnVJbaOtlLCL1dCnxxqJ9CwwRR1ITrnDXk311U/lK8pRGABGBZ1YXtjdwO5wKoJsvr0H/eUQVyT+NJMXUVAguFnwFoTYlmHFhUc3MdyoglD9bj+tQti0GqZbrJvyxIsTi4ICO/Ys2nlNP6tVey+wBVJvDzNASEQP+q5MJn/8rXrI8JrJp9vNIHtSbZnPdsOqaRSEohNzbsKOmGz/2rNvbpyyI/WYI8fnmf0h2fv5xQjvMRJ/3jTjST8s8j88c1UMjf3hZ3TKPKGXeJslvTPdyXR9Bxb3EQnswhAOVxVNmzO8J92q+sU2fDPksJGxvy1oXcGQkRCV6BhmFUPPzCdSie/wdBCkWIMifojC2b0aMqWV0BIiLP+ZYKBH+4GEMtPXTSq60fV/4S5b7L7WaVrhU3nTajPpsTsn5scvqufqUbJ0YCiHUnJT1xKxURB8sYDiPLpJFX9MQRMJFBuTSeeXEqZnpq2GX+DpnOuOyF6IFiFDZfi4Heyysc5FN0nkKBiiBbIpFOOrvFvn7ZH X-OriginatorOrg: oss.nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 4e049d92-9a23-47e9-413b-08d8beec931e X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB5636.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 22 Jan 2021 15:44:16.5676 (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: kpSzEIF3cCBE/r/V7i4Y4sivPpIw1S6oy+YHLVrjbwIIzvc+ikG721OpNtVugzb0eFIVF2gX+NWJ+vvCO/dydQ== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR0402MB3443 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Extract phy_id from compatible string. This will be used by fwnode_mdiobus_register_phy() to create phy device using the phy_id. Signed-off-by: Calvin Johnson --- Changes in v4: None Changes in v3: - Use traditional comparison pattern - Use GENMASK Changes in v2: None drivers/net/phy/phy_device.c | 21 +++++++++++++++++++++ include/linux/phy.h | 5 +++++ 2 files changed, 26 insertions(+) diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 66e779cd905a..6ebb67a19e69 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -846,6 +846,27 @@ static int get_phy_c22_id(struct mii_bus *bus, int addr, u32 *phy_id) return 0; } +/* Extract the phy ID from the compatible string of the form + * ethernet-phy-idAAAA.BBBB. + */ +int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id) +{ + unsigned int upper, lower; + const char *cp; + int ret; + + ret = fwnode_property_read_string(fwnode, "compatible", &cp); + if (ret) + return ret; + + if (sscanf(cp, "ethernet-phy-id%4x.%4x", &upper, &lower) != 2) + return -EINVAL; + + *phy_id = ((upper & GENMASK(15, 0)) << 16) | (lower & GENMASK(15, 0)); + return 0; +} +EXPORT_SYMBOL(fwnode_get_phy_id); + /** * get_phy_device - reads the specified PHY device and returns its @phy_device * struct diff --git a/include/linux/phy.h b/include/linux/phy.h index dee7064ea4eb..957ce3c9b058 100644 --- a/include/linux/phy.h +++ b/include/linux/phy.h @@ -1349,6 +1349,7 @@ 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) +int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id); struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode); struct phy_device *fwnode_phy_find_device(struct fwnode_handle *phy_fwnode); struct phy_device *device_phy_find_device(struct device *dev); @@ -1357,6 +1358,10 @@ 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 int fwnode_get_phy_id(struct fwnode_handle *fwnode, u32 *phy_id) +{ + return 0; +} static inline struct mdio_device *fwnode_mdio_find_device(struct fwnode_handle *fwnode) {