net: mdio: of: export part of of_mdiobus_register_phy()

This function will be needed in tja11xx driver for secondary PHY
support.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 9f982c0..a04afe7 100644 (file)
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -60,39 +60,15 @@ static struct mii_timestamper *of_find_mii_timestamper(struct device_node *node)
        return register_mii_timestamper(arg.np, arg.args[0]);
 }
 
-static int of_mdiobus_register_phy(struct mii_bus *mdio,
-                                   struct device_node *child, u32 addr)
+int of_mdiobus_phy_device_register(struct mii_bus *mdio, struct phy_device *phy,
+                             struct device_node *child, u32 addr)
 {
-       struct mii_timestamper *mii_ts;
-       struct phy_device *phy;
-       bool is_c45;
        int rc;
-       u32 phy_id;
-
-       mii_ts = of_find_mii_timestamper(child);
-       if (IS_ERR(mii_ts))
-               return PTR_ERR(mii_ts);
-
-       is_c45 = of_device_is_compatible(child,
-                                        "ethernet-phy-ieee802.3-c45");
-
-       if (!is_c45 && !of_get_phy_id(child, &phy_id))
-               phy = phy_device_create(mdio, addr, phy_id, 0, NULL);
-       else
-               phy = get_phy_device(mdio, addr, is_c45);
-       if (IS_ERR(phy)) {
-               if (mii_ts)
-                       unregister_mii_timestamper(mii_ts);
-               return PTR_ERR(phy);
-       }
 
        rc = of_irq_get(child, 0);
-       if (rc == -EPROBE_DEFER) {
-               if (mii_ts)
-                       unregister_mii_timestamper(mii_ts);
-               phy_device_free(phy);
+       if (rc == -EPROBE_DEFER)
                return rc;
-       }
+
        if (rc > 0) {
                phy->irq = rc;
                mdio->irq[addr] = rc;
@@ -118,10 +94,47 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio,
         * register it */
        rc = phy_device_register(phy);
        if (rc) {
+               of_node_put(child);
+               return rc;
+       }
+
+       dev_dbg(&mdio->dev, "registered phy %pOFn at address %i\n",
+               child, addr);
+       return 0;
+}
+EXPORT_SYMBOL(of_mdiobus_phy_device_register);
+
+static int of_mdiobus_register_phy(struct mii_bus *mdio,
+                                   struct device_node *child, u32 addr)
+{
+       struct mii_timestamper *mii_ts;
+       struct phy_device *phy;
+       bool is_c45;
+       int rc;
+       u32 phy_id;
+
+       mii_ts = of_find_mii_timestamper(child);
+       if (IS_ERR(mii_ts))
+               return PTR_ERR(mii_ts);
+
+       is_c45 = of_device_is_compatible(child,
+                                        "ethernet-phy-ieee802.3-c45");
+
+       if (!is_c45 && !of_get_phy_id(child, &phy_id))
+               phy = phy_device_create(mdio, addr, phy_id, 0, NULL);
+       else
+               phy = get_phy_device(mdio, addr, is_c45);
+       if (IS_ERR(phy)) {
+               if (mii_ts)
+                       unregister_mii_timestamper(mii_ts);
+               return PTR_ERR(phy);
+       }
+
+       rc = of_mdiobus_phy_device_register(mdio, phy, child, addr);
+       if (rc) {
                if (mii_ts)
                        unregister_mii_timestamper(mii_ts);
                phy_device_free(phy);
-               of_node_put(child);
                return rc;
        }
 
@@ -132,8 +145,6 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio,
        if (mii_ts)
                phy->mii_ts = mii_ts;
 
-       dev_dbg(&mdio->dev, "registered phy %pOFn at address %i\n",
-               child, addr);
        return 0;
 }
 

diff --git a/include/linux/of_mdio.h b/include/linux/of_mdio.h
index 491a2b7..0f61a4a 100644 (file)
--- a/include/linux/of_mdio.h
+++ b/include/linux/of_mdio.h
@@ -30,7 +30,9 @@ extern struct mii_bus *of_mdio_find_bus(struct device_node *mdio_np);
 extern int of_phy_register_fixed_link(struct device_node *np);
 extern void of_phy_deregister_fixed_link(struct device_node *np);
 extern bool of_phy_is_fixed_link(struct device_node *np);
-
+extern int of_mdiobus_phy_device_register(struct mii_bus *mdio,
+                                    struct phy_device *phy,
+                                    struct device_node *child, u32 addr);
 
 static inline int of_mdio_parse_addr(struct device *dev,
                                     const struct device_node *np)
@@ -118,6 +120,13 @@ static inline bool of_phy_is_fixed_link(struct device_node *np)
 {
        return false;
 }
+
+static inline int of_mdiobus_phy_device_register(struct mii_bus *mdio,
+                                           struct phy_device *phy,
+                                           struct device_node *child, u32 addr)
+{
+       return -ENOSYS;
+}
 #endif