net: phy: add genphy_c45_check_and_restart_aneg (1af9f168) · Commits · 戴 / test

drivers/net/phy/phy-c45.c

+30 −0

Original line number	Diff line number	Diff line
		@@ -156,6 +156,36 @@ int genphy_c45_restart_aneg(struct phy_device *phydev)
		}
		EXPORT_SYMBOL_GPL(genphy_c45_restart_aneg);

		/**
		* genphy_c45_check_and_restart_aneg - Enable and restart auto-negotiation
		* @phydev: target phy_device struct
		* @restart: whether aneg restart is requested
		*
		* This assumes that the auto-negotiation MMD is present.
		*
		* Check, and restart auto-negotiation if needed.
		*/
		int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart)
		{
		int ret = 0;

		if (!restart) {
		/* Configure and restart aneg if it wasn't set before */
		ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1);
		if (ret < 0)
		return ret;

		if (!(ret & MDIO_AN_CTRL1_ENABLE))
		restart = true;
		}

		if (restart)
		ret = genphy_c45_restart_aneg(phydev);

		return ret;
		}
		EXPORT_SYMBOL_GPL(genphy_c45_check_and_restart_aneg);

		/**
		* genphy_c45_aneg_done - return auto-negotiation complete status
		* @phydev: target phy_device struct

+1 −0

Original line number	Diff line number	Diff line
		@@ -1097,6 +1097,7 @@ int genphy_write_mmd_unsupported(struct phy_device *phdev, int devnum,

		/* Clause 45 PHY */
		int genphy_c45_restart_aneg(struct phy_device *phydev);
		int genphy_c45_check_and_restart_aneg(struct phy_device *phydev, bool restart);
		int genphy_c45_aneg_done(struct phy_device *phydev);
		int genphy_c45_read_link(struct phy_device *phydev);
		int genphy_c45_read_lpa(struct phy_device *phydev);