linux-kernel - [PATCH net-next v2 3/4] net: usb: asix: make use of mdiobus_get_phy and phy_connect

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Message-Id: <20220311085014.1210963-3-o.rempel@pengutronix.de>
Date:   Fri, 11 Mar 2022 09:50:13 +0100
From:   Oleksij Rempel <o.rempel@...gutronix.de>
To:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        netdev@...r.kernel.org, paskripkin@...il.com
Subject: [PATCH net-next v2 3/4] net: usb: asix: make use of mdiobus_get_phy and phy_connect_direct

In most cases we use own mdio bus, there is no need to create and store
string for the PHY address.

Signed-off-by: Oleksij Rempel <o.rempel@...gutronix.de>
---
 drivers/net/usb/asix.h         |  1 -
 drivers/net/usb/asix_devices.c | 19 ++++++++++---------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/net/usb/asix.h b/drivers/net/usb/asix.h
index 691f37f45238..072760d76a72 100644
--- a/drivers/net/usb/asix.h
+++ b/drivers/net/usb/asix.h
@@ -184,7 +184,6 @@ struct asix_common_private {
 	struct mii_bus *mdio;
 	struct phy_device *phydev;
 	u16 phy_addr;
-	char phy_name[20];
 	bool embd_phy;
 	u8 chipcode;
 };
diff --git a/drivers/net/usb/asix_devices.c b/drivers/net/usb/asix_devices.c
index a0c02cd53472..40046d23d986 100644
--- a/drivers/net/usb/asix_devices.c
+++ b/drivers/net/usb/asix_devices.c
@@ -661,15 +661,16 @@ static int ax88772_init_phy(struct usbnet *dev)
 	struct asix_common_private *priv = dev->driver_priv;
 	int ret;
 
-	snprintf(priv->phy_name, sizeof(priv->phy_name), PHY_ID_FMT,
-		 priv->mdio->id, priv->phy_addr);
-
-	priv->phydev = phy_connect(dev->net, priv->phy_name, &asix_adjust_link,
-				   PHY_INTERFACE_MODE_INTERNAL);
-	if (IS_ERR(priv->phydev)) {
-		netdev_err(dev->net, "Could not connect to PHY device %s\n",
-			   priv->phy_name);
-		ret = PTR_ERR(priv->phydev);
+	priv->phydev = mdiobus_get_phy(priv->mdio, priv->phy_addr);
+	if (!priv->phydev) {
+		netdev_err(dev->net, "Could not find PHY\n");
+		return -ENODEV;
+	}
+
+	ret = phy_connect_direct(dev->net, priv->phydev, &asix_adjust_link,
+				 PHY_INTERFACE_MODE_INTERNAL);
+	if (ret) {
+		netdev_err(dev->net, "Could not connect PHY\n");
 		return ret;
 	}
 
-- 
2.30.2