提交 f8f76db1 编写于 作者: J Jiri Pirko 提交者: David S. Miller

libphy: add phy_find_first function

Many drivers do this in them manually. Now they can use this function.
Signed-off-by: NJiri Pirko <jpirko@redhat.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 6683ece3
......@@ -276,6 +276,22 @@ int phy_device_register(struct phy_device *phydev)
}
EXPORT_SYMBOL(phy_device_register);
/**
* phy_find_first - finds the first PHY device on the bus
* @bus: the target MII bus
*/
struct phy_device *phy_find_first(struct mii_bus *bus)
{
int addr;
for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
if (bus->phy_map[addr])
return bus->phy_map[addr];
}
return NULL;
}
EXPORT_SYMBOL(phy_find_first);
/**
* phy_prepare_link - prepares the PHY layer to monitor link status
* @phydev: target phy_device struct
......
......@@ -452,6 +452,7 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev,
u32 flags, phy_interface_t interface);
struct phy_device * phy_attach(struct net_device *dev,
const char *bus_id, u32 flags, phy_interface_t interface);
struct phy_device *phy_find_first(struct mii_bus *bus);
int phy_connect_direct(struct net_device *dev, struct phy_device *phydev,
void (*handler)(struct net_device *), u32 flags,
phy_interface_t interface);
......
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