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net: mdiobus: Introduce fwnode_mdbiobus_register()

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This patch introduces a new helper function that
wraps acpi_/of_ mdiobus_register() and allows its
usage via common fwnode_ interface.

Fall back to raw mdiobus_register() in case CONFIG_FWNODE_MDIO
is not enabled, in order to satisfy compatibility
in all future user drivers.

Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Marcin Wojtas
2021-06-21 19:30:24 +02:00
committed by David S. Miller
parent 7c4d7ca8cc
commit 62a6ef6a99
2 changed files with 34 additions and 0 deletions
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12
include/linux/fwnode_mdio.h
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@@ -16,6 +16,7 @@ int fwnode_mdiobus_phy_device_register(struct mii_bus *mdio,
int fwnode_mdiobus_register_phy(struct mii_bus *bus,
struct fwnode_handle *child, u32 addr);
int fwnode_mdiobus_register(struct mii_bus *bus, struct fwnode_handle *fwnode);
#else /* CONFIG_FWNODE_MDIO */
int fwnode_mdiobus_phy_device_register(struct mii_bus *mdio,
struct phy_device *phy,
@@ -30,6 +31,17 @@ static inline int fwnode_mdiobus_register_phy(struct mii_bus *bus,
{
return -EINVAL;
}
static inline int fwnode_mdiobus_register(struct mii_bus *bus,
struct fwnode_handle *fwnode)
{
/*
* Fall back to mdiobus_register() function to register a bus.
* This way, we don't have to keep compat bits around in drivers.
*/
return mdiobus_register(mdio);
}
#endif
#endif /* __LINUX_FWNODE_MDIO_H */