netdev - [PATCH net-next v9 09/15] of: mdio: Refactor of_mdiobus_register

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Message-Id: <20210611105401.270673-10-ciorneiioana@gmail.com>
Date:   Fri, 11 Jun 2021 13:53:55 +0300
From:   Ioana Ciornei <ciorneiioana@...il.com>
To:     davem@...emloft.net, kuba@...nel.org, hkallweit1@...il.com,
        netdev@...r.kernel.org, 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>,
        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>,
        calvin.johnson@....nxp.com
Cc:     Cristi Sovaiala <cristian.sovaiala@....com>,
        Florin Laurentiu Chiculita <florinlaurentiu.chiculita@....com>,
        Madalin Bucur <madalin.bucur@....com>,
        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, Laurentiu Tudor <laurentiu.tudor@....com>,
        Len Brown <lenb@...nel.org>,
        "Rafael J . Wysocki" <rjw@...ysocki.net>,
        Ioana Ciornei <ioana.ciornei@....com>
Subject: [PATCH net-next v9 09/15] of: mdio: Refactor of_mdiobus_register_phy()

From: Calvin Johnson <calvin.johnson@....nxp.com>

Refactor of_mdiobus_register_phy() to use fwnode_mdiobus_register_phy().
Also, remove the of_find_mii_timestamper() since the fwnode variant is
used instead.

Signed-off-by: Calvin Johnson <calvin.johnson@....nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
Acked-by: Grant Likely <grant.likely@....com>
---

Changes in v9:
- remove the of_find_mii_timestamper() in this patch rather the previous
  one

Changes in v8: None
Changes in v7:
- include fwnode_mdio.h

Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None



 drivers/net/mdio/of_mdio.c | 56 +-------------------------------------
 1 file changed, 1 insertion(+), 55 deletions(-)

diff --git a/drivers/net/mdio/of_mdio.c b/drivers/net/mdio/of_mdio.c
index 17327bbc1de4..8744b1e1c2b1 100644
--- a/drivers/net/mdio/of_mdio.c
+++ b/drivers/net/mdio/of_mdio.c
@@ -33,24 +33,6 @@ static int of_get_phy_id(struct device_node *device, u32 *phy_id)
 	return fwnode_get_phy_id(of_fwnode_handle(device), phy_id);
 }
 
-static struct mii_timestamper *of_find_mii_timestamper(struct device_node *node)
-{
-	struct of_phandle_args arg;
-	int err;
-
-	err = of_parse_phandle_with_fixed_args(node, "timestamper", 1, 0, &arg);
-
-	if (err == -ENOENT)
-		return NULL;
-	else if (err)
-		return ERR_PTR(err);
-
-	if (arg.args_count != 1)
-		return ERR_PTR(-EINVAL);
-
-	return register_mii_timestamper(arg.np, arg.args[0]);
-}
-
 int of_mdiobus_phy_device_register(struct mii_bus *mdio, struct phy_device *phy,
 				   struct device_node *child, u32 addr)
 {
@@ -63,43 +45,7 @@ EXPORT_SYMBOL(of_mdiobus_phy_device_register);
 static int of_mdiobus_register_phy(struct mii_bus *mdio,
 				    struct device_node *child, u32 addr)
 {
-	struct mii_timestamper *mii_ts;
-	struct phy_device *phy;
-	bool is_c45;
-	int rc;
-	u32 phy_id;
-
-	mii_ts = of_find_mii_timestamper(child);
-	if (IS_ERR(mii_ts))
-		return PTR_ERR(mii_ts);
-
-	is_c45 = of_device_is_compatible(child,
-					 "ethernet-phy-ieee802.3-c45");
-
-	if (!is_c45 && !of_get_phy_id(child, &phy_id))
-		phy = phy_device_create(mdio, addr, phy_id, 0, NULL);
-	else
-		phy = get_phy_device(mdio, addr, is_c45);
-	if (IS_ERR(phy)) {
-		unregister_mii_timestamper(mii_ts);
-		return PTR_ERR(phy);
-	}
-
-	rc = of_mdiobus_phy_device_register(mdio, phy, child, addr);
-	if (rc) {
-		unregister_mii_timestamper(mii_ts);
-		phy_device_free(phy);
-		return rc;
-	}
-
-	/* phy->mii_ts may already be defined by the PHY driver. A
-	 * mii_timestamper probed via the device tree will still have
-	 * precedence.
-	 */
-	if (mii_ts)
-		phy->mii_ts = mii_ts;
-
-	return 0;
+	return fwnode_mdiobus_register_phy(mdio, of_fwnode_handle(child), addr);
 }
 
 static int of_mdiobus_register_device(struct mii_bus *mdio,
-- 
2.31.1