fwnode_mdiobus_register() internally takes care of both DT
and ACPI cases to register mdiobus. Replace existing
of_mdiobus_register() with fwnode_mdiobus_register().

Note: For both ACPI and DT cases, endianness of MDIO controller
need to be specified using "little-endian" property.

Signed-off-by: Calvin Johnson <calvin.john...@oss.nxp.com>
---

Changes in v5: None
Changes in v4:
- Cleanup xgmac_mdio_probe()

Changes in v3:
- Avoid unnecessary line removal
- Remove unused inclusion of acpi.h

Changes in v2: None

 drivers/net/ethernet/freescale/xgmac_mdio.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c 
b/drivers/net/ethernet/freescale/xgmac_mdio.c
index bfa2826c5545..dca5305e7185 100644
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -2,6 +2,7 @@
  * QorIQ 10G MDIO Controller
  *
  * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2021 NXP
  *
  * Authors: Andy Fleming <aflem...@freescale.com>
  *          Timur Tabi <ti...@freescale.com>
@@ -243,10 +244,9 @@ static int xgmac_mdio_read(struct mii_bus *bus, int 
phy_id, int regnum)
 
 static int xgmac_mdio_probe(struct platform_device *pdev)
 {
-       struct device_node *np = pdev->dev.of_node;
-       struct mii_bus *bus;
-       struct resource *res;
        struct mdio_fsl_priv *priv;
+       struct resource *res;
+       struct mii_bus *bus;
        int ret;
 
        /* In DPAA-1, MDIO is one of the many FMan sub-devices. The FMan
@@ -279,13 +279,16 @@ static int xgmac_mdio_probe(struct platform_device *pdev)
                goto err_ioremap;
        }
 
+       /* For both ACPI and DT cases, endianness of MDIO controller
+        * needs to be specified using "little-endian" property.
+        */
        priv->is_little_endian = device_property_read_bool(&pdev->dev,
                                                           "little-endian");
 
        priv->has_a011043 = device_property_read_bool(&pdev->dev,
                                                      "fsl,erratum-a011043");
 
-       ret = of_mdiobus_register(bus, np);
+       ret = fwnode_mdiobus_register(bus, pdev->dev.fwnode);
        if (ret) {
                dev_err(&pdev->dev, "cannot register MDIO bus\n");
                goto err_registration;
-- 
2.17.1

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