net: phy: at803x: Use devm_regulator_get_enable_optional()

[ Upstream commit 988e8d9 ]

Use devm_regulator_get_enable_optional() instead of hand writing it. It
saves some line of code.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: e58f302 ("net: phy: at803x: fix the wol setting functions")
Signed-off-by: Sasha Levin <sashal@kernel.org>

drivers/net/phy/at803x.c

@@ -305,7 +305,6 @@ struct at803x_priv {
 	bool is_1000basex;
 	struct regulator_dev *vddio_rdev;
 	struct regulator_dev *vddh_rdev;
-	struct regulator *vddio;
 	u64 stats[ARRAY_SIZE(at803x_hw_stats)];
 };
 
@@ -825,11 +824,11 @@ static int at803x_parse_dt(struct phy_device *phydev)
 		if (ret < 0)
 			return ret;
 
-		priv->vddio = devm_regulator_get_optional(&phydev->mdio.dev,
-							  "vddio");
-		if (IS_ERR(priv->vddio)) {
+		ret = devm_regulator_get_enable_optional(&phydev->mdio.dev,
+							 "vddio");
+		if (ret) {
 			phydev_err(phydev, "failed to get VDDIO regulator\n");
-			return PTR_ERR(priv->vddio);
+			return ret;
 		}
 
 		/* Only AR8031/8033 support 1000Base-X for SFP modules */
@@ -857,23 +856,15 @@ static int at803x_probe(struct phy_device *phydev)
 	if (ret)
 		return ret;
 
-	if (priv->vddio) {
-		ret = regulator_enable(priv->vddio);
-		if (ret < 0)
-			return ret;
-	}
-
 	if (phydev->drv->phy_id == ATH8031_PHY_ID) {
 		int ccr = phy_read(phydev, AT803X_REG_CHIP_CONFIG);
 		int mode_cfg;
 		struct ethtool_wolinfo wol = {
 			.wolopts = 0,
 		};
 
-		if (ccr < 0) {
-			ret = ccr;
-			goto err;
-		}
+		if (ccr < 0)
+			return ccr;
 		mode_cfg = ccr & AT803X_MODE_CFG_MASK;
 
 		switch (mode_cfg) {
@@ -891,25 +882,11 @@ static int at803x_probe(struct phy_device *phydev)
 		ret = at803x_set_wol(phydev, &wol);
 		if (ret < 0) {
 			phydev_err(phydev, "failed to disable WOL on probe: %d\n", ret);
-			goto err;
+			return ret;
 		}
 	}
 
 	return 0;
-
-err:
-	if (priv->vddio)
-		regulator_disable(priv->vddio);
-
-	return ret;
-}
-
-static void at803x_remove(struct phy_device *phydev)
-{
-	struct at803x_priv *priv = phydev->priv;
-
-	if (priv->vddio)
-		regulator_disable(priv->vddio);
 }
 
 static int at803x_get_features(struct phy_device *phydev)
@@ -2022,7 +1999,6 @@ static struct phy_driver at803x_driver[] = {
 	.name			= "Qualcomm Atheros AR8035",
 	.flags			= PHY_POLL_CABLE_TEST,
 	.probe			= at803x_probe,
-	.remove			= at803x_remove,
 	.config_aneg		= at803x_config_aneg,
 	.config_init		= at803x_config_init,
 	.soft_reset		= genphy_soft_reset,
@@ -2044,7 +2020,6 @@ static struct phy_driver at803x_driver[] = {
 	.name			= "Qualcomm Atheros AR8030",
 	.phy_id_mask		= AT8030_PHY_ID_MASK,
 	.probe			= at803x_probe,
-	.remove			= at803x_remove,
 	.config_init		= at803x_config_init,
 	.link_change_notify	= at803x_link_change_notify,
 	.set_wol		= at803x_set_wol,
@@ -2060,7 +2035,6 @@ static struct phy_driver at803x_driver[] = {
 	.name			= "Qualcomm Atheros AR8031/AR8033",
 	.flags			= PHY_POLL_CABLE_TEST,
 	.probe			= at803x_probe,
-	.remove			= at803x_remove,
 	.config_init		= at803x_config_init,
 	.config_aneg		= at803x_config_aneg,
 	.soft_reset		= genphy_soft_reset,
@@ -2083,7 +2057,6 @@ static struct phy_driver at803x_driver[] = {
 	PHY_ID_MATCH_EXACT(ATH8032_PHY_ID),
 	.name			= "Qualcomm Atheros AR8032",
 	.probe			= at803x_probe,
-	.remove			= at803x_remove,
 	.flags			= PHY_POLL_CABLE_TEST,
 	.config_init		= at803x_config_init,
 	.link_change_notify	= at803x_link_change_notify,
@@ -2099,7 +2072,6 @@ static struct phy_driver at803x_driver[] = {
 	PHY_ID_MATCH_EXACT(ATH9331_PHY_ID),
 	.name			= "Qualcomm Atheros AR9331 built-in PHY",
 	.probe			= at803x_probe,
-	.remove			= at803x_remove,
 	.suspend		= at803x_suspend,
 	.resume			= at803x_resume,
 	.flags			= PHY_POLL_CABLE_TEST,
@@ -2116,7 +2088,6 @@ static struct phy_driver at803x_driver[] = {
 	PHY_ID_MATCH_EXACT(QCA9561_PHY_ID),
 	.name			= "Qualcomm Atheros QCA9561 built-in PHY",
 	.probe			= at803x_probe,
-	.remove			= at803x_remove,
 	.suspend		= at803x_suspend,
 	.resume			= at803x_resume,
 	.flags			= PHY_POLL_CABLE_TEST,
@@ -2182,7 +2153,6 @@ static struct phy_driver at803x_driver[] = {
 	.name			= "Qualcomm QCA8081",
 	.flags			= PHY_POLL_CABLE_TEST,
 	.probe			= at803x_probe,
-	.remove			= at803x_remove,
 	.config_intr		= at803x_config_intr,
 	.handle_interrupt	= at803x_handle_interrupt,
 	.get_tunable		= at803x_get_tunable,