target/linux/lantiq/patches-5.4/0701-NET-lantiq-etop-of-mido.patch

   1 --- a/drivers/net/ethernet/lantiq_etop.c
   2 +++ b/drivers/net/ethernet/lantiq_etop.c
   3 @@ -40,6 +40,7 @@
   4  #include <linux/of_net.h>
   5  #include <linux/of_irq.h>
   6  #include <linux/of_platform.h>
   7 +#include <linux/of_mdio.h>
   8
   9  #include <asm/checksum.h>
  10
  11 @@ -571,7 +572,8 @@ static int
  12  ltq_etop_mdio_init(struct net_device *dev)
  13  {
  14         struct ltq_etop_priv *priv = netdev_priv(dev);
  15 -       int err;
  16 +       struct device_node *mdio_np = NULL;
  17 +       int err, ret;
  18
  19         priv->mii_bus = mdiobus_alloc();
  20         if (!priv->mii_bus) {
  21 @@ -591,7 +593,15 @@ ltq_etop_mdio_init(struct net_device *de
  22         priv->mii_bus->name = "ltq_mii";
  23         snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s-%x",
  24                 priv->pdev->name, priv->pdev->id);
  25 -       if (mdiobus_register(priv->mii_bus)) {
  26 +
  27 +       mdio_np = of_get_child_by_name(priv->pdev->dev.of_node, "mdio-bus");
  28 +
  29 +       if (mdio_np)
  30 +               ret = of_mdiobus_register(priv->mii_bus, mdio_np);
  31 +       else
  32 +               ret = mdiobus_register(priv->mii_bus);
  33 +
  34 +       if (ret) {
  35                 err = -ENXIO;
  36                 goto err_out_free_mdiobus;
  37         }