Whether a PHY is 100MBps or 1Gbps-capable can be autodetected,
therefore it's not needed to define this manually in the driver.
genphy_config_init() will remove 1Gbps from phydev->supported if
not supported. Having said that PHY drivers for 100Mbps not
calling genphy_config_init() still have to set the features field.
As most PHY's are 1Gbps-capable let's use this as default.

Signed-off-by: Heiner Kallweit <hkallwe...@gmail.com>
---
 drivers/net/phy/phy_device.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 54af2bde6..753451341 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -2138,6 +2138,7 @@ static int phy_probe(struct device *dev)
        struct phy_device *phydev = to_phy_device(dev);
        struct device_driver *drv = phydev->mdio.dev.driver;
        struct phy_driver *phydrv = to_phy_driver(drv);
+       const long unsigned int *features;
        int err = 0;
 
        phydev->drv = phydrv;
@@ -2153,11 +2154,14 @@ static int phy_probe(struct device *dev)
 
        mutex_lock(&phydev->lock);
 
+       /* Use 1Gbps as default if driver defines no features */
+       features = phydrv->features ?: phy_gbit_features;
+
        /* Start out supporting everything. Eventually,
         * a controller will attach, and may modify one
         * or both of these values
         */
-       linkmode_copy(phydev->supported, phydrv->features);
+       linkmode_copy(phydev->supported, features);
        of_set_phy_supported(phydev);
        linkmode_copy(phydev->advertising, phydev->supported);
 
@@ -2177,17 +2181,16 @@ static int phy_probe(struct device *dev)
         * (e.g. hardware erratum) where the driver wants to set only one
         * of these bits.
         */
-       if (test_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydrv->features) ||
-           test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydrv->features)) {
+       if (test_bit(ETHTOOL_LINK_MODE_Pause_BIT, features) ||
+           test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, features)) {
                linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT,
                                   phydev->supported);
                linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
                                   phydev->supported);
-               if (test_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydrv->features))
+               if (test_bit(ETHTOOL_LINK_MODE_Pause_BIT, features))
                        linkmode_set_bit(ETHTOOL_LINK_MODE_Pause_BIT,
                                         phydev->supported);
-               if (test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
-                            phydrv->features))
+               if (test_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, features))
                        linkmode_set_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT,
                                         phydev->supported);
        } else {
-- 
2.20.0


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