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    Subject[PATCH AUTOSEL 5.10 024/137] net: mdio: provide shim implementation of devm_of_mdiobus_register
    Date
    From: Vladimir Oltean <olteanv@gmail.com>

    [ Upstream commit 86544c3de6a2185409c5a3d02f674ea223a14217 ]

    Similar to the way in which of_mdiobus_register() has a fallback to the
    non-DT based mdiobus_register() when CONFIG_OF is not set, we can create
    a shim for the device-managed devm_of_mdiobus_register() which calls
    devm_mdiobus_register() and discards the struct device_node *.

    In particular, this solves a build issue with the qca8k DSA driver which
    uses devm_of_mdiobus_register and can be compiled without CONFIG_OF.

    Reported-by: Randy Dunlap <rdunlap@infradead.org>
    Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
    Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested
    Reviewed-by: Andrew Lunn <andrew@lunn.ch>
    Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
    Signed-off-by: David S. Miller <davem@davemloft.net>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    include/linux/of_mdio.h | 7 +++++++
    1 file changed, 7 insertions(+)

    diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h
    index cfe8c607a628..f56c6a9230ac 100644
    --- a/include/linux/of_mdio.h
    +++ b/include/linux/of_mdio.h
    @@ -75,6 +75,13 @@ static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *
    return mdiobus_register(mdio);
    }

    +static inline int devm_of_mdiobus_register(struct device *dev,
    + struct mii_bus *mdio,
    + struct device_node *np)
    +{
    + return devm_mdiobus_register(dev, mdio);
    +}
    +
    static inline struct mdio_device *of_mdio_find_device(struct device_node *np)
    {
    return NULL;
    --
    2.30.2
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