netdev - [net-next PATCH v7 13/16] net/fsl: Use fwnode_mdiobus

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Message-Id: <20210311062011.8054-14-calvin.johnson@oss.nxp.com>
Date:   Thu, 11 Mar 2021 11:50:08 +0530
From:   Calvin Johnson <calvin.johnson@....nxp.com>
To:     Grant Likely <grant.likely@....com>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        Jeremy Linton <jeremy.linton@....com>,
        Andrew Lunn <andrew@...n.ch>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Russell King - ARM Linux admin <linux@...linux.org.uk>,
        Cristi Sovaiala <cristian.sovaiala@....com>,
        Florin Laurentiu Chiculita <florinlaurentiu.chiculita@....com>,
        Ioana Ciornei <ioana.ciornei@....com>,
        Madalin Bucur <madalin.bucur@....nxp.com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Marcin Wojtas <mw@...ihalf.com>,
        Pieter Jansen Van Vuuren <pieter.jansenvv@...boosystems.io>,
        Jon <jon@...id-run.com>, Saravana Kannan <saravanak@...gle.com>,
        Randy Dunlap <rdunlap@...radead.org>
Cc:     linux-arm-kernel@...ts.infradead.org,
        Diana Madalina Craciun <diana.craciun@....com>,
        linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux.cj@...il.com, netdev@...r.kernel.org,
        Laurentiu Tudor <laurentiu.tudor@....com>,
        Calvin Johnson <calvin.johnson@....nxp.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Jamie Iles <jamie@...iainc.com>
Subject: [net-next PATCH v7 13/16] net/fsl: Use fwnode_mdiobus_register()

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.johnson@....nxp.com>
---

Changes in v7:
- Include fwnode_mdio.h
- Alphabetically sort header inclusions

Changes in v6: None
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 | 22 ++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c
index bfa2826c5545..6daf1fb2e9ea 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 <afleming@...escale.com>
  *          Timur Tabi <timur@...escale.com>
@@ -11,15 +12,16 @@
  * kind, whether express or implied.
  */
 
-#include <linux/kernel.h>
-#include <linux/slab.h>
+#include <linux/fwnode_mdio.h>
 #include <linux/interrupt.h>
-#include <linux/module.h>
-#include <linux/phy.h>
+#include <linux/kernel.h>
 #include <linux/mdio.h>
+#include <linux/module.h>
 #include <linux/of_address.h>
-#include <linux/of_platform.h>
 #include <linux/of_mdio.h>
+#include <linux/of_platform.h>
+#include <linux/phy.h>
+#include <linux/slab.h>
 
 /* Number of microseconds to wait for a register to respond */
 #define TIMEOUT	1000
@@ -243,10 +245,9 @@ 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 +280,16 @@ 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