net: mdio: Add mdio_free() and mdio_unregister() API

Currently there is no API to uninitialize mdio. Add two APIs for this.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

diff --git a/common/miiphyutil.c b/common/miiphyutil.c
index c88c28adbf4ede84eb62422557cd14c87307acba..e499b588368fd9dcf9f04a6619976923e9d30a53 100644 (file)
--- a/common/miiphyutil.c
+++ b/common/miiphyutil.c
@@ -152,6 +152,11 @@ struct mii_dev *mdio_alloc(void)
        return bus;
 }
 
+void mdio_free(struct mii_dev *bus)
+{
+       free(bus);
+}
+
 int mdio_register(struct mii_dev *bus)
 {
        if (!bus || !bus->name || !bus->read || !bus->write)
@@ -173,6 +178,20 @@ int mdio_register(struct mii_dev *bus)
        return 0;
 }
 
+int mdio_unregister(struct mii_dev *bus)
+{
+       if (!bus)
+               return 0;
+
+       /* delete it from the list */
+       list_del(&bus->link);
+
+       if (current_mii == bus)
+               current_mii = NULL;
+
+       return 0;
+}
+
 void mdio_list_devices(void)
 {
        struct list_head *entry;

diff --git a/include/miiphy.h b/include/miiphy.h
index 088797e4c6ca9d4c39a82cd6067de61c4df911a5..af12274c81df2d7febbe257ee940f46be5aaed08 100644 (file)
--- a/include/miiphy.h
+++ b/include/miiphy.h
@@ -59,7 +59,9 @@ struct phy_device *mdio_phydev_for_ethname(const char *devname);
 void miiphy_listdev(void);
 
 struct mii_dev *mdio_alloc(void);
+void mdio_free(struct mii_dev *bus);
 int mdio_register(struct mii_dev *bus);
+int mdio_unregister(struct mii_dev *bus);
 void mdio_list_devices(void);
 
 #ifdef CONFIG_BITBANGMII