Introduce device_mdiobus_register() to register mdiobus
in cases of either DT or ACPI.
Signed-off-by: Calvin Johnson <calvin.johnson@xxxxxxxxxxx>
---
Changes in v4: None
Changes in v3: None
Changes in v2: None
drivers/net/phy/mdio_bus.c | 22 ++++++++++++++++++++++
include/linux/mdio.h | 1 +
2 files changed, 23 insertions(+)
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 46b33701ad4b..3c2749e84f74 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -501,6 +501,28 @@ 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
+ *
+ * Returns 0 on success or < 0 on error.
+ */
+int device_mdiobus_register(struct mii_bus *bus,
+ struct device *dev)
+{
+ if (dev->of_node) {
+ return of_mdiobus_register(bus, dev->of_node);
+ } else if (dev_fwnode(dev)) {
+ bus->dev.fwnode = dev_fwnode(dev);
+ return mdiobus_register(bus);
+ } else {
+ 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);
--
2.17.1
