phylib: Add Clause 45 read/write functions
Need an extra parameter to read or write Clause 45 PHYs, so need a different API with the extra parameter. Signed-off-by: Andy Fleming <afleming@gmail.com> Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -487,6 +487,24 @@ struct phy_fixup {
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int (*run)(struct phy_device *phydev);
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};
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/**
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* phy_read_mmd - Convenience function for reading a register
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* from an MMD on a given PHY.
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* @phydev: The phy_device struct
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* @devad: The MMD to read from
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* @regnum: The register on the MMD to read
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*
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* Same rules as for phy_read();
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*/
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static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
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{
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if (!phydev->is_c45)
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return -EOPNOTSUPP;
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return mdiobus_read(phydev->bus, phydev->addr,
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MII_ADDR_C45 | (devad << 16) | (regnum & 0xffff));
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}
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/**
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* phy_read - Convenience function for reading a given PHY register
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* @phydev: the phy_device struct
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@ -537,6 +555,27 @@ static inline bool phy_is_internal(struct phy_device *phydev)
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return phydev->is_internal;
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}
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/**
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* phy_write_mmd - Convenience function for writing a register
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* on an MMD on a given PHY.
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* @phydev: The phy_device struct
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* @devad: The MMD to read from
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* @regnum: The register on the MMD to read
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* @val: value to write to @regnum
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*
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* Same rules as for phy_write();
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*/
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static inline int phy_write_mmd(struct phy_device *phydev, int devad,
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u32 regnum, u16 val)
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{
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if (!phydev->is_c45)
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return -EOPNOTSUPP;
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regnum = MII_ADDR_C45 | ((devad & 0x1f) << 16) | (regnum & 0xffff);
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return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
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}
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struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id,
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bool is_c45,
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struct phy_c45_device_ids *c45_ids);
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