iio: cdc: ad7150: 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>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20221016163409.320197-7-jic23@kernel.org

drivers/iio/cdc/ad7150.c

@@ -536,19 +536,11 @@ static const struct iio_info ad7150_info_no_irq = {
 	.read_raw = &ad7150_read_raw,
 };
 
-static void ad7150_reg_disable(void *data)
-{
-	struct regulator *reg = data;
-
-	regulator_disable(reg);
-}
-
 static int ad7150_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct ad7150_chip_info *chip;
 	struct iio_dev *indio_dev;
-	struct regulator *reg;
 	int ret;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
@@ -563,15 +555,7 @@ static int ad7150_probe(struct i2c_client *client,
 
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
-	reg = devm_regulator_get(&client->dev, "vdd");
-	if (IS_ERR(reg))
-		return PTR_ERR(reg);
-
-	ret = regulator_enable(reg);
-	if (ret)
-		return ret;
-
-	ret = devm_add_action_or_reset(&client->dev, ad7150_reg_disable, reg);
+	ret = devm_regulator_get_enable(&client->dev, "vdd");
 	if (ret)
 		return ret;