Add unlocked versions of the bus accessors, which allows access to the
bus with all the tracing. These accessors validate that the bus mutex
is held, which is a basic requirement for all mii bus accesses.
Signed-off-by: Russell King <rmk+ker...@armlinux.org.uk>
---
include/linux/phy.h | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 71d777fe6c3d..964803bd7324 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -716,6 +716,18 @@ static inline int phy_read(struct phy_device *phydev, u32
regnum)
}
/**
+ * __phy_read - convenience function for reading a given PHY register
+ * @phydev: the phy_device struct
+ * @regnum: register number to read
+ *
+ * The caller must have taken the MDIO bus lock.
+ */
+static inline int __phy_read(struct phy_device *phydev, u32 regnum)
+{
+ return __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr, regnum);
+}
+
+/**
* phy_write - Convenience function for writing a given PHY register
* @phydev: the phy_device struct
* @regnum: register number to write
@@ -731,6 +743,20 @@ static inline int phy_write(struct phy_device *phydev, u32
regnum, u16 val)
}
/**
+ * __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
+ *
+ * The caller must have taken the MDIO bus lock.
+ */
+static inline int __phy_write(struct phy_device *phydev, u32 regnum, u16 val)
+{
+ return __mdiobus_write(phydev->mdio.bus, phydev->mdio.addr, regnum,
+ val);
+}
+
+/**
* phy_interrupt_is_valid - Convenience function for testing a given PHY irq
* @phydev: the phy_device struct
*
--
2.7.4
