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Date: Fri, 22 Aug 2014 18:55:43 -0700
From: Florian Fainelli <f.fainelli@...il.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, Florian Fainelli <f.fainelli@...il.com>
Subject: [PATCH net-next 5/7] net: phy: export phy_{read,write}_mmd_indirect
Some PHY drivers might need to access Clause 45 registers in Clause 22
compatibility mode to e.g: properly advertise EEE support when disabled
by default.
Export these two helper functions: phy_read_mmd_indirect() and
phy_write_mmd_indirect() for drivers to use them.
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
drivers/net/phy/phy.c | 6 ++++--
include/linux/phy.h | 27 +++++++++++++++++++++++++++
2 files changed, 31 insertions(+), 2 deletions(-)
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c
index c94e2a27446a..e7a5893f32ff 100644
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -955,7 +955,7 @@ static inline void mmd_phy_indirect(struct mii_bus *bus, int prtad, int devad,
* 3) Write reg 13 // MMD Data Command for MMD DEVAD
* 3) Read reg 14 // Read MMD data
*/
-static int phy_read_mmd_indirect(struct phy_device *phydev, int prtad,
+int phy_read_mmd_indirect(struct phy_device *phydev, int prtad,
int devad, int addr)
{
struct phy_driver *phydrv = phydev->drv;
@@ -971,6 +971,7 @@ static int phy_read_mmd_indirect(struct phy_device *phydev, int prtad,
}
return value;
}
+EXPORT_SYMBOL(phy_read_mmd_indirect);
/**
* phy_write_mmd_indirect - writes data to the MMD registers
@@ -988,7 +989,7 @@ static int phy_read_mmd_indirect(struct phy_device *phydev, int prtad,
* 3) Write reg 13 // MMD Data Command for MMD DEVAD
* 3) Write reg 14 // Write MMD data
*/
-static void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
+void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
int devad, int addr, u32 data)
{
struct phy_driver *phydrv = phydev->drv;
@@ -1002,6 +1003,7 @@ static void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
phydrv->write_mmd_indirect(phydev, prtad, devad, addr, data);
}
}
+EXPORT_SYMBOL(phy_write_mmd_indirect);
/**
* phy_init_eee - init and check the EEE feature
diff --git a/include/linux/phy.h b/include/linux/phy.h
index ed39956b5613..d090cfcaa167 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -598,6 +598,19 @@ static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
}
/**
+ * phy_read_mmd_indirect - reads data from the MMD registers
+ * @phydev: The PHY device bus
+ * @prtad: MMD Address
+ * @devad: MMD DEVAD
+ * @addr: PHY address on the MII bus
+ *
+ * Description: it reads data from the MMD registers (clause 22 to access to
+ * clause 45) of the specified phy address.
+ */
+int phy_read_mmd_indirect(struct phy_device *phydev, int prtad,
+ int devad, int addr);
+
+/**
* phy_read - Convenience function for reading a given PHY register
* @phydev: the phy_device struct
* @regnum: register number to read
@@ -668,6 +681,20 @@ static inline int phy_write_mmd(struct phy_device *phydev, int devad,
return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
}
+/**
+ * phy_write_mmd_indirect - writes data to the MMD registers
+ * @phydev: The PHY device
+ * @prtad: MMD Address
+ * @devad: MMD DEVAD
+ * @addr: PHY address on the MII bus
+ * @data: data to write in the MMD register
+ *
+ * Description: Write data from the MMD registers of the specified
+ * phy address.
+ */
+void phy_write_mmd_indirect(struct phy_device *phydev, int prtad,
+ int devad, int addr, u32 data);
+
struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
bool is_c45,
struct phy_c45_device_ids *c45_ids);
--
1.9.1
--
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