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Diffstat (limited to 'include/linux/phy.h')
-rw-r--r--include/linux/phy.h46
1 files changed, 38 insertions, 8 deletions
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 891f27f9137..77c4ed60b98 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -122,6 +122,15 @@ struct mii_bus {
};
#define to_mii_bus(d) container_of(d, struct mii_bus, dev)
+struct mii_bus *mdiobus_alloc(void);
+int mdiobus_register(struct mii_bus *bus);
+void mdiobus_unregister(struct mii_bus *bus);
+void mdiobus_free(struct mii_bus *bus);
+struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
+int mdiobus_read(struct mii_bus *bus, int addr, u16 regnum);
+int mdiobus_write(struct mii_bus *bus, int addr, u16 regnum, u16 val);
+
+
#define PHY_INTERRUPT_DISABLED 0x0
#define PHY_INTERRUPT_ENABLED 0x80000000
@@ -399,8 +408,35 @@ struct phy_fixup {
int (*run)(struct phy_device *phydev);
};
-int phy_read(struct phy_device *phydev, u16 regnum);
-int phy_write(struct phy_device *phydev, u16 regnum, u16 val);
+/**
+ * phy_read - Convenience function for reading a given PHY register
+ * @phydev: the phy_device struct
+ * @regnum: register number to read
+ *
+ * NOTE: MUST NOT be called from interrupt context,
+ * because the bus read/write functions may wait for an interrupt
+ * to conclude the operation.
+ */
+static inline int phy_read(struct phy_device *phydev, u16 regnum)
+{
+ return mdiobus_read(phydev->bus, phydev->addr, regnum);
+}
+
+/**
+ * phy_write - Convenience function for writing a given PHY register
+ * @phydev: the phy_device struct
+ * @regnum: register number to write
+ * @val: value to write to @regnum
+ *
+ * NOTE: MUST NOT be called from interrupt context,
+ * because the bus read/write functions may wait for an interrupt
+ * to conclude the operation.
+ */
+static inline int phy_write(struct phy_device *phydev, u16 regnum, u16 val)
+{
+ return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
+}
+
int get_phy_id(struct mii_bus *bus, int addr, u32 *phy_id);
struct phy_device* get_phy_device(struct mii_bus *bus, int addr);
int phy_clear_interrupt(struct phy_device *phydev);
@@ -416,12 +452,6 @@ void phy_start(struct phy_device *phydev);
void phy_stop(struct phy_device *phydev);
int phy_start_aneg(struct phy_device *phydev);
-struct mii_bus *mdiobus_alloc(void);
-int mdiobus_register(struct mii_bus *bus);
-void mdiobus_unregister(struct mii_bus *bus);
-void mdiobus_free(struct mii_bus *bus);
-struct phy_device *mdiobus_scan(struct mii_bus *bus, int addr);
-
void phy_sanitize_settings(struct phy_device *phydev);
int phy_stop_interrupts(struct phy_device *phydev);
int phy_enable_interrupts(struct phy_device *phydev);