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of: mdio: Fall back to mdiobus_register() with NULL device_node
When the device_node specified is NULL, fall back to mdiobus_register(). We have a number of drivers having a similar pattern which is: if (np) of_mdiobus_register() else mdiobus_register() so incorporate that behavior within the core of_mdiobus_register() function. This is also consistent with the stub version that we defined when CONFIG_OF=n. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -204,6 +204,9 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
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bool scanphys = false;
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int addr, rc;
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if (!np)
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return mdiobus_register(mdio);
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/* Do not continue if the node is disabled */
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if (!of_device_is_available(np))
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return -ENODEV;
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