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of_mdio: Abstract a general interface for phy connect
Abstract a general interface "of_phy_get_and_connect" for PHY connect. User will have no bother with getting "phy-mode" and "phy-handle" any more. Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Dongpo Li <lidongpo@hisilicon.com> Reviewed-by: Jiancheng Xue <xuejiancheng@hisilicon.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -19,6 +19,7 @@
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#include <linux/of_gpio.h>
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#include <linux/of_irq.h>
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#include <linux/of_mdio.h>
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#include <linux/of_net.h>
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#include <linux/module.h>
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MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>");
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@ -331,6 +332,41 @@ struct phy_device *of_phy_connect(struct net_device *dev,
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}
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EXPORT_SYMBOL(of_phy_connect);
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/**
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* of_phy_get_and_connect
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* - Get phy node and connect to the phy described in the device tree
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* @dev: pointer to net_device claiming the phy
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* @np: Pointer to device tree node for the net_device claiming the phy
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* @hndlr: Link state callback for the network device
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*
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* If successful, returns a pointer to the phy_device with the embedded
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* struct device refcount incremented by one, or NULL on failure. The
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* refcount must be dropped by calling phy_disconnect() or phy_detach().
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*/
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struct phy_device *of_phy_get_and_connect(struct net_device *dev,
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struct device_node *np,
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void (*hndlr)(struct net_device *))
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{
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phy_interface_t iface;
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struct device_node *phy_np;
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struct phy_device *phy;
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iface = of_get_phy_mode(np);
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if (iface < 0)
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return NULL;
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phy_np = of_parse_phandle(np, "phy-handle", 0);
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if (!phy_np)
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return NULL;
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phy = of_phy_connect(dev, phy_np, hndlr, 0, iface);
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of_node_put(phy_np);
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return phy;
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}
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EXPORT_SYMBOL(of_phy_get_and_connect);
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/**
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* of_phy_attach - Attach to a PHY without starting the state machine
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* @dev: pointer to net_device claiming the phy
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@ -19,6 +19,9 @@ extern struct phy_device *of_phy_connect(struct net_device *dev,
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struct device_node *phy_np,
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void (*hndlr)(struct net_device *),
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u32 flags, phy_interface_t iface);
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extern struct phy_device *
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of_phy_get_and_connect(struct net_device *dev, struct device_node *np,
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void (*hndlr)(struct net_device *));
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struct phy_device *of_phy_attach(struct net_device *dev,
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struct device_node *phy_np, u32 flags,
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phy_interface_t iface);
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@ -52,6 +55,13 @@ static inline struct phy_device *of_phy_connect(struct net_device *dev,
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return NULL;
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}
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static inline struct phy_device *
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of_phy_get_and_connect(struct net_device *dev, struct device_node *np,
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void (*hndlr)(struct net_device *))
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{
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return NULL;
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}
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static inline struct phy_device *of_phy_attach(struct net_device *dev,
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struct device_node *phy_np,
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u32 flags, phy_interface_t iface)
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