/**
* phylink_of_phy_connect() - connect the PHY specified in the DT mode.
* @pl: a pointer to a &struct phylink returned from phylink_create()
* @dn: a pointer to a &struct device_node.
* @flags: PHY-specific flags to communicate to the PHY device driver
*
* Connect the phy specified in the device node @dn to the phylink instance
* specified by @pl. Actions specified in phylink_connect_phy() will be
* performed.
*
* Returns 0 on success or a negative errno.
*/
int phylink_of_phy_connect(struct phylink *pl, struct device_node *dn,
u32 flags)
{
struct device_node *phy_node;
struct phy_device *phy_dev;
int ret;
/* Fixed links and 802.3z are handled without needing a PHY */
if (pl->link_an_mode == MLO_AN_FIXED ||
(pl->link_an_mode == MLO_AN_INBAND &&
phy_interface_mode_is_8023z(pl->link_interface)))
return 0;
phy_node = of_parse_phandle(dn, "phy-handle", 0);
if (!phy_node)
phy_node = of_parse_phandle(dn, "phy", 0);
if (!phy_node)
phy_node = of_parse_phandle(dn, "phy-device", 0);
if (!phy_node) {
if (pl->link_an_mode == MLO_AN_PHY)
return -ENODEV;
return 0;
}
phy_dev = of_phy_attach(pl->netdev, phy_node, flags,
pl->link_interface);
/* We're done with the phy_node handle */
of_node_put(phy_node);
if (!phy_dev)
return -ENODEV;
ret = phylink_bringup_phy(pl, phy_dev);
if (ret)
phy_detach(phy_dev);
return ret;
}
int phylink_of_phy_connect(struct phylink *pl, struct device_node *dn)
{
struct device_node *phy_node;
struct phy_device *phy_dev;
int ret;
/* Fixed links are handled without needing a PHY */
if (pl->link_an_mode == MLO_AN_FIXED)
return 0;
phy_node = of_parse_phandle(dn, "phy-handle", 0);
if (!phy_node)
phy_node = of_parse_phandle(dn, "phy", 0);
if (!phy_node)
phy_node = of_parse_phandle(dn, "phy-device", 0);
if (!phy_node) {
if (pl->link_an_mode == MLO_AN_PHY) {
netdev_err(pl->netdev, "unable to find PHY node\n");
return -ENODEV;
}
return 0;
}
phy_dev = of_phy_attach(pl->netdev, phy_node, 0, pl->link_interface);
/* We're done with the phy_node handle */
of_node_put(phy_node);
if (!phy_dev)
return -ENODEV;
ret = phylink_bringup_phy(pl, phy_dev);
if (ret)
phy_detach(phy_dev);
return ret;
}
