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Commit 33d67377 authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
Browse files

of: mdio: export of_mdio_parse_addr 



Export of_mdio_parse_addr() which allows parsing a given Ethernet PHY
node MDIO address, verify it is within the allowed range, and return
its value. This is going to be useful for the DSA code which needs to
deal with multiple layers of MDIO buses.

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Acked-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d26ea6cc

drivers/of/of_mdio.c

+2 −1
Original line number Diff line number Diff line
@@ -88,7 +88,7 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio, struct device_node *chi 
	return 0;

}



static int of_mdio_parse_addr(struct device *dev, const struct device_node *np)

int of_mdio_parse_addr(struct device *dev, const struct device_node *np)

{

	u32 addr;

	int ret;
@@ -108,6 +108,7 @@ static int of_mdio_parse_addr(struct device *dev, const struct device_node *np) 


	return addr;

}

EXPORT_SYMBOL(of_mdio_parse_addr);



/**

 * of_mdiobus_register - Register mii_bus and create PHYs from the device tree

include/linux/of_mdio.h

+7 −0
Original line number Diff line number Diff line
@@ -24,6 +24,7 @@ struct phy_device *of_phy_attach(struct net_device *dev, 
				 phy_interface_t iface);



extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);

extern int of_mdio_parse_addr(struct device *dev, const struct device_node *np);



#else /* CONFIG_OF */

static inline int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
@@ -60,6 +61,12 @@ static inline struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np) 
{

	return NULL;

}



static inline int of_mdio_parse_addr(struct device *dev,

				     const struct device_node *np)

{

	return -ENOSYS;

}

#endif /* CONFIG_OF */



#if defined(CONFIG_OF) && defined(CONFIG_FIXED_PHY)