iio: light: noa1305: Use devm_regulator_get_enable()

This driver only turns the power on at probe and off via a custom
devm_add_action_or_reset() callback. The new devm_regulator_get_enable()
replaces this boilerplate code.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Martyn Welch <martyn.welch@collabora.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20221016163409.320197-12-jic23@kernel.org

drivers/iio/light/noa1305.c

@@ -46,7 +46,6 @@
 struct noa1305_priv {
 	struct i2c_client *client;
 	struct regmap *regmap;
-	struct regulator *vin_reg;
 };
 
 static int noa1305_measure(struct noa1305_priv *priv)
@@ -187,13 +186,6 @@ static const struct regmap_config noa1305_regmap_config = {
 	.writeable_reg = noa1305_writable_reg,
 };
 
-static void noa1305_reg_remove(void *data)
-{
-	struct noa1305_priv *priv = data;
-
-	regulator_disable(priv->vin_reg);
-}
-
 static int noa1305_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
@@ -216,23 +208,11 @@ static int noa1305_probe(struct i2c_client *client,
 
 	priv = iio_priv(indio_dev);
 
-	priv->vin_reg = devm_regulator_get(&client->dev, "vin");
-	if (IS_ERR(priv->vin_reg))
-		return dev_err_probe(&client->dev, PTR_ERR(priv->vin_reg),
+	ret = devm_regulator_get_enable(&client->dev, "vin");
+	if (ret)
+		return dev_err_probe(&client->dev, ret,
 				     "get regulator vin failed\n");
 
-	ret = regulator_enable(priv->vin_reg);
-	if (ret) {
-		dev_err(&client->dev, "enable regulator vin failed\n");
-		return ret;
-	}
-
-	ret = devm_add_action_or_reset(&client->dev, noa1305_reg_remove, priv);
-	if (ret) {
-		dev_err(&client->dev, "addition of devm action failed\n");
-		return ret;
-	}
-
 	i2c_set_clientdata(client, indio_dev);
 	priv->client = client;
 	priv->regmap = regmap;