diff options
author | Florian Fainelli <f.fainelli@gmail.com> | 2014-08-22 18:55:43 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2014-08-23 11:39:09 -0700 |
commit | 66ce7fb9807b036058aa380bfd2b3851ae25ce39 (patch) | |
tree | 22af492482c1156cde345f00905baea457db6bc8 /include/linux/phy.h | |
parent | a2dbba7674468ad03aa6cf4378ed0965f453e034 (diff) |
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@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/phy.h')
-rw-r--r-- | include/linux/phy.h | 27 |
1 files changed, 27 insertions, 0 deletions
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); |