staging: octeon: repair "fixed-link" support

The PHYs must be registered once in device probe function, not in device
open callback because it's only possible to register them once.

Fixes: a25e278020bf ("staging: octeon: support fixed-link phys")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20201016101858.11374-1-alexander.sverdlin@nokia.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c
index cfb673a..0bf5458 100644 (file)
--- a/drivers/staging/octeon/ethernet-mdio.c
+++ b/drivers/staging/octeon/ethernet-mdio.c
@@ -147,12 +147,6 @@ int cvm_oct_phy_setup_device(struct net_device *dev)
 
        phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0);
        if (!phy_node && of_phy_is_fixed_link(priv->of_node)) {
 
        phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0);
        if (!phy_node && of_phy_is_fixed_link(priv->of_node)) {

-               int rc;
-
-               rc = of_phy_register_fixed_link(priv->of_node);
-               if (rc)
-                       return rc;
-

                phy_node = of_node_get(priv->of_node);
        }
        if (!phy_node)
                phy_node = of_node_get(priv->of_node);
        }
        if (!phy_node)

diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 204f0b1..5dea6e9 100644 (file)
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -13,6 +13,7 @@
 #include <linux/phy.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/phy.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>

+#include <linux/of_mdio.h>

 #include <linux/of_net.h>
 #include <linux/if_ether.h>
 #include <linux/if_vlan.h>
 #include <linux/of_net.h>
 #include <linux/if_ether.h>
 #include <linux/if_vlan.h>


@@ -892,6 +893,14 @@ static int cvm_oct_probe(struct platform_device *pdev)
                                break;
                        }
 
                                break;
                        }
 

+                       if (priv->of_node && of_phy_is_fixed_link(priv->of_node)) {
+                               if (of_phy_register_fixed_link(priv->of_node)) {
+                                       netdev_err(dev, "Failed to register fixed link for interface %d, port %d\n",
+                                                  interface, priv->port);
+                                       dev->netdev_ops = NULL;
+                               }
+                       }
+

                        if (!dev->netdev_ops) {
                                free_netdev(dev);
                        } else if (register_netdev(dev) < 0) {
                        if (!dev->netdev_ops) {
                                free_netdev(dev);
                        } else if (register_netdev(dev) < 0) {