net: dsa: realtek: get internal MDIO node by name

The binding docs requires for SMI-connected devices that the switch
must have a child node named "mdio" and with a compatible string of
"realtek,smi-mdio". Meanwile, for MDIO-connected switches, the binding
docs only requires a child node named "mdio".

This patch changes the driver to use the common denominator for both
interfaces, looking for the MDIO node by name, ignoring the compatible
string.

Signed-off-by: Luiz Angelo Daros de Luca <luizluca@gmail.com>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/dsa/realtek/realtek-smi.c b/drivers/net/dsa/realtek/realtek-smi.c
index 10de30d3e0440b48b4b556b6d7373794454137e4..1fa8e9cb1a109a0cfce866232268f255abec6a19 100644 (file)
--- a/drivers/net/dsa/realtek/realtek-smi.c
+++ b/drivers/net/dsa/realtek/realtek-smi.c
@@ -333,7 +333,7 @@ static int realtek_smi_setup_mdio(struct dsa_switch *ds)
        struct device_node *mdio_np;
        int ret;
 
-       mdio_np = of_get_compatible_child(priv->dev->of_node, "realtek,smi-mdio");
+       mdio_np = of_get_child_by_name(priv->dev->of_node, "mdio");
        if (!mdio_np) {
                dev_err(priv->dev, "no MDIO bus node\n");
                return -ENODEV;