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phylib: Add of_phy_attach

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10G PHYs don't currently support running the state machine, which
is implicitly setup via of_phy_connect(). Therefore, it is necessary
to implement an OF version of phy_attach(), which does everything
except start the state machine.

Signed-off-by: Andy Fleming <[email protected]>
Signed-off-by: Shaohui Xie <[email protected]>
Acked-by: Florian Fainelli <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Andy Fleming 2014-01-10 14:28:11 +08:00 • committed by David S. Miller
commit 7614aba6a3
2 changed files with 30 additions and 0 deletions
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20
drivers/of/of_mdio.c
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@ -254,3 +254,23 @@ struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
return IS_ERR(phy) ? NULL : phy;
}
EXPORT_SYMBOL(of_phy_connect_fixed_link);
/**
* of_phy_attach - Attach to a PHY without starting the state machine
* @dev: pointer to net_device claiming the phy
* @phy_np: Node pointer for the PHY
* @flags: flags to pass to the PHY
* @iface: PHY data interface type
*/
struct phy_device *of_phy_attach(struct net_device *dev,
struct device_node *phy_np, u32 flags,
phy_interface_t iface)
{
struct phy_device *phy = of_phy_find_device(phy_np);
if (!phy)
return NULL;
return phy_attach_direct(dev, phy, flags, iface) ? NULL : phy;
}
EXPORT_SYMBOL(of_phy_attach);