net: phy: fix auto negotiation checking for teranetics

When using fiber port, the phy cannot report it's auto negotiation state,
driver should always report auto negotiation is done when using fiber port.

Signed-off-by: Shaohui Xie <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

diff --git a/drivers/net/phy/teranetics.c b/drivers/net/phy/teranetics.c
index 7dcb5aada1c416bad656c1d57a6a6ecac149c3fa..91e1bec6079fafc20665a3d26949250da2817a55 100644 (file)
--- a/drivers/net/phy/teranetics.c
+++ b/drivers/net/phy/teranetics.c
@@ -51,8 +51,15 @@ static int teranetics_aneg_done(struct phy_device *phydev)
 {
        int reg;
 
-       reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
-       return (reg < 0) ? reg : (reg & BMSR_ANEGCOMPLETE);
+       /* auto negotiation state can only be checked when using copper
+        * port, if using fiber port, just lie it's done.
+        */
+       if (!phy_read_mmd(phydev, MDIO_MMD_VEND1, 93)) {
+               reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
+               return (reg < 0) ? reg : (reg & BMSR_ANEGCOMPLETE);
+       }
+
+       return 1;
 }
 
 static int teranetics_config_aneg(struct phy_device *phydev)