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of_mdio: add helper to deregister fixed-link PHYs

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Add helper to deregister fixed-link PHYs registered using
of_phy_register_fixed_link().

Convert the two drivers that care to deregister their fixed-link PHYs to
use the new helper, but note that most drivers currently fail to do so.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Johan Hovold
2016-11-28 19:24:55 +01:00
committed by David S. Miller
parent 0d8f3c6715
commit 3f65047c85
4 changed files with 23 additions and 24 deletions
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4
include/linux/of_mdio.h
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@@ -29,6 +29,7 @@ struct phy_device *of_phy_attach(struct net_device *dev,
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);
extern int of_phy_register_fixed_link(struct device_node *np);
extern void of_phy_deregister_fixed_link(struct device_node *np);
extern bool of_phy_is_fixed_link(struct device_node *np);
#else /* CONFIG_OF */
@@ -83,6 +84,9 @@ static inline int of_phy_register_fixed_link(struct device_node *np)
{
return -ENOSYS;
}
static inline void of_phy_deregister_fixed_link(struct device_node *np)
{
}
static inline bool of_phy_is_fixed_link(struct device_node *np)
{
return false;