[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Tue, 5 May 2020 18:59:05 +0530
From: Calvin Johnson <calvin.johnson@....nxp.com>
To: "Rafael J . Wysocki" <rafael@...nel.org>,
Russell King - ARM Linux admin <linux@...linux.org.uk>,
linux.cj@...il.com, Jeremy Linton <jeremy.linton@....com>,
Andrew Lunn <andrew@...n.ch>,
Andy Shevchenko <andy.shevchenko@...il.com>,
Florian Fainelli <f.fainelli@...il.com>,
Cristi Sovaiala <cristian.sovaiala@....com>,
Florin Laurentiu Chiculita <florinlaurentiu.chiculita@....com>,
Ioana Ciornei <ioana.ciornei@....com>,
Madalin Bucur <madalin.bucur@....nxp.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Heikki Krogerus <heikki.krogerus@...ux.intel.com>
Cc: Varun Sethi <V.Sethi@....com>,
"Rajesh V . Bikkina" <rajesh.bikkina@....com>,
linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
Diana Madalina Craciun <diana.craciun@....com>,
netdev@...r.kernel.org, Marcin Wojtas <mw@...ihalf.com>,
Laurentiu Tudor <laurentiu.tudor@....com>,
Makarand Pawagi <makarand.pawagi@....com>,
linux-arm-kernel@...ts.infradead.org,
Pankaj Bansal <pankaj.bansal@....com>,
Calvin Johnson <calvin.johnson@....nxp.com>,
"David S. Miller" <davem@...emloft.net>,
Heiner Kallweit <hkallweit1@...il.com>
Subject: [net-next PATCH v3 5/5] net: mdiobus: Introduce fwnode_mdiobus_register_phy()
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@....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
Powered by blists - more mailing lists