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    Subject[net-next PATCH v5 11/15] net: mdiobus: Introduce fwnode_mdiobus_register()
    Date
    Introduce fwnode_mdiobus_register() to register PHYs on the  mdiobus.
    If the fwnode is DT node, then call of_mdiobus_register().
    If it is an ACPI node, then call acpi_mdiobus_register().

    Signed-off-by: Calvin Johnson <calvin.johnson@oss.nxp.com>
    ---

    Changes in v5: None
    Changes in v4:
    - Remove redundant else from fwnode_mdiobus_register()

    Changes in v3:
    - Use acpi_mdiobus_register()

    Changes in v2: None

    drivers/net/phy/mdio_bus.c | 21 +++++++++++++++++++++
    include/linux/phy.h | 1 +
    2 files changed, 22 insertions(+)

    diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
    index 33d1667fdeca..c597dd41695d 100644
    --- a/drivers/net/phy/mdio_bus.c
    +++ b/drivers/net/phy/mdio_bus.c
    @@ -9,6 +9,7 @@
    #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

    #include <linux/acpi.h>
    +#include <linux/acpi_mdio.h>
    #include <linux/delay.h>
    #include <linux/device.h>
    #include <linux/errno.h>
    @@ -566,6 +567,26 @@ static int mdiobus_create_device(struct mii_bus *bus,
    return ret;
    }

    +/**
    + * fwnode_mdiobus_register - Register mii_bus and create PHYs from fwnode
    + * @mdio: pointer to mii_bus structure
    + * @fwnode: pointer to fwnode of MDIO bus.
    + *
    + * This function returns of_mdiobus_register() for DT and
    + * acpi_mdiobus_register() for ACPI.
    + */
    +int fwnode_mdiobus_register(struct mii_bus *mdio, struct fwnode_handle *fwnode)
    +{
    + if (is_of_node(fwnode))
    + return of_mdiobus_register(mdio, to_of_node(fwnode));
    +
    + if (is_acpi_node(fwnode))
    + return acpi_mdiobus_register(mdio, fwnode);
    +
    + return -EINVAL;
    +}
    +EXPORT_SYMBOL(fwnode_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/phy.h b/include/linux/phy.h
    index 957ce3c9b058..765e1844cfdb 100644
    --- a/include/linux/phy.h
    +++ b/include/linux/phy.h
    @@ -387,6 +387,7 @@ static inline struct mii_bus *mdiobus_alloc(void)
    return mdiobus_alloc_size(0);
    }

    +int fwnode_mdiobus_register(struct mii_bus *mdio, struct fwnode_handle *fwnode);
    int __mdiobus_register(struct mii_bus *bus, struct module *owner);
    int __devm_mdiobus_register(struct device *dev, struct mii_bus *bus,
    struct module *owner);
    --
    2.17.1
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