phylib: Add Clause 45 read/write functions (efabdfb9) · Commits · 戴 / test

include/linux/phy.h

+39 −0

Original line number	Original line	Diff line number	Diff line
	@@ -487,6 +487,24 @@ struct phy_fixup {
	int (run)(struct phy_device phydev);		int (run)(struct phy_device phydev);
	};		};

			/**
			* phy_read_mmd - Convenience function for reading a register
			* from an MMD on a given PHY.
			* @phydev: The phy_device struct
			* @devad: The MMD to read from
			* @regnum: The register on the MMD to read
			*
			* Same rules as for phy_read();
			*/
			static inline int phy_read_mmd(struct phy_device *phydev, int devad, u32 regnum)
			{
			if (!phydev->is_c45)
			return -EOPNOTSUPP;

			return mdiobus_read(phydev->bus, phydev->addr,
			MII_ADDR_C45 \| (devad << 16) \| (regnum & 0xffff));
			}

	/**		/**
	* phy_read - Convenience function for reading a given PHY register		* phy_read - Convenience function for reading a given PHY register
	* @phydev: the phy_device struct		* @phydev: the phy_device struct
	@@ -537,6 +555,27 @@ static inline bool phy_is_internal(struct phy_device *phydev)
	return phydev->is_internal;		return phydev->is_internal;
	}		}

			/**
			* phy_write_mmd - Convenience function for writing a register
			* on an MMD on a given PHY.
			* @phydev: The phy_device struct
			* @devad: The MMD to read from
			* @regnum: The register on the MMD to read
			* @val: value to write to @regnum
			*
			* Same rules as for phy_write();
			*/
			static inline int phy_write_mmd(struct phy_device *phydev, int devad,
			u32 regnum, u16 val)
			{
			if (!phydev->is_c45)
			return -EOPNOTSUPP;

			regnum = MII_ADDR_C45 \| ((devad & 0x1f) << 16) \| (regnum & 0xffff);

			return mdiobus_write(phydev->bus, phydev->addr, regnum, val);
			}

	struct phy_device phy_device_create(struct mii_bus bus, int addr, int phy_id,		struct phy_device phy_device_create(struct mii_bus bus, int addr, int phy_id,
	bool is_c45,		bool is_c45,
	struct phy_c45_device_ids *c45_ids);		struct phy_c45_device_ids *c45_ids);

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