diff options
Diffstat (limited to 'drivers/of/of_mdio.c')
| -rw-r--r-- | drivers/of/of_mdio.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index e2b50bc12f23..b470f7e3521d 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -19,6 +19,7 @@ #include <linux/of_gpio.h> #include <linux/of_irq.h> #include <linux/of_mdio.h> +#include <linux/of_net.h> #include <linux/module.h> MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>"); @@ -332,6 +333,41 @@ struct phy_device *of_phy_connect(struct net_device *dev, EXPORT_SYMBOL(of_phy_connect); /** + * of_phy_get_and_connect + * - Get phy node and connect to the phy described in the device tree + * @dev: pointer to net_device claiming the phy + * @np: Pointer to device tree node for the net_device claiming the phy + * @hndlr: Link state callback for the network device + * + * If successful, returns a pointer to the phy_device with the embedded + * struct device refcount incremented by one, or NULL on failure. The + * refcount must be dropped by calling phy_disconnect() or phy_detach(). + */ +struct phy_device *of_phy_get_and_connect(struct net_device *dev, + struct device_node *np, + void (*hndlr)(struct net_device *)) +{ + phy_interface_t iface; + struct device_node *phy_np; + struct phy_device *phy; + + iface = of_get_phy_mode(np); + if (iface < 0) + return NULL; + + phy_np = of_parse_phandle(np, "phy-handle", 0); + if (!phy_np) + return NULL; + + phy = of_phy_connect(dev, phy_np, hndlr, 0, iface); + + of_node_put(phy_np); + + return phy; +} +EXPORT_SYMBOL(of_phy_get_and_connect); + +/** * 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 |