arc_emac: remove custom "max-speed" parsing code

The ARC emac driver was the only in-tree to parse a PHY device
'max-speed' property but yet failed to do it correctly because
'max-speed' is supposed to set a PHY device supported features, not the
advertising features as it was done.

Now that of_mdiobus_register() takes care of doing that, remove the
custom 'max-speed' parsing code.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 1 insertions, 21 deletions

diff --git a/drivers/net/ethernet/arc/emac.h b/drivers/net/ethernet/arc/emac.h
index dc08678bf9a4..928fac6dd10a 100644
--- a/drivers/net/ethernet/arc/emac.h
+++ b/drivers/net/ethernet/arc/emac.h
@@ -122,7 +122,6 @@ struct buffer_state {
  * @link:       PHY's last seen link state.
  * @duplex:     PHY's last set duplex mode.
  * @speed:      PHY's last set speed.
- * @max_speed:  Maximum supported by current system network data-rate.
  */
 struct arc_emac_priv {
         /* Devices */
@@ -152,7 +151,6 @@ struct arc_emac_priv {
         unsigned int link;
         unsigned int duplex;
         unsigned int speed;
-        unsigned int max_speed;
 };
 
 /**
diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
index b2ffad1304d2..eedf2a5fc2be 100644
--- a/drivers/net/ethernet/arc/emac_main.c
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -381,17 +381,7 @@ static int arc_emac_open(struct net_device *ndev)
         phy_dev->autoneg = AUTONEG_ENABLE;
         phy_dev->speed = 0;
         phy_dev->duplex = 0;
-        phy_dev->advertising = phy_dev->supported;
-
-        if (priv->max_speed > 100) {
-                phy_dev->advertising &= PHY_GBIT_FEATURES;
-        } else if (priv->max_speed <= 100) {
-                phy_dev->advertising &= PHY_BASIC_FEATURES;
-                if (priv->max_speed <= 10) {
-                        phy_dev->advertising &= ~SUPPORTED_100baseT_Half;
-                        phy_dev->advertising &= ~SUPPORTED_100baseT_Full;
-                }
-        }
+        phy_dev->advertising &= phy_dev->supported;
 
         priv->last_rx_bd = 0;
 
@@ -704,14 +694,6 @@ static int arc_emac_probe(struct platform_device *pdev)
         /* Set poll rate so that it polls every 1 ms */
         arc_reg_set(priv, R_POLLRATE, clock_frequency / 1000000);
 
-        /* Get max speed of operation from device tree */
-        if (of_property_read_u32(pdev->dev.of_node, "max-speed",
-                                 &priv->max_speed)) {
-                dev_err(&pdev->dev, "failed to retrieve <max-speed> from device tree\n");
-                err = -EINVAL;
-                goto out;
-        }
-
         ndev->irq = irq;
         dev_info(&pdev->dev, "IRQ is %d\n", ndev->irq);