iio: accel: fxls8962af: 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: Sean Nyekjaer <sean@geanix.com>
Reviewed-by: Sean Nyekjaer <sean@geanix.com>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Reviewed-by: Nuno Sá <nuno.sa@analog.com>
Link: https://lore.kernel.org/r/20221016163409.320197-4-jic23@kernel.org

drivers/iio/accel/fxls8962af-core.c

@@ -159,7 +159,6 @@ struct fxls8962af_chip_info {
 struct fxls8962af_data {
 	struct regmap *regmap;
 	const struct fxls8962af_chip_info *chip_info;
-	struct regulator *vdd_reg;
 	struct {
 		__le16 channels[3];
 		s64 ts __aligned(8);
@@ -1051,13 +1050,6 @@ static irqreturn_t fxls8962af_interrupt(int irq, void *p)
 	return IRQ_NONE;
 }
 
-static void fxls8962af_regulator_disable(void *data_ptr)
-{
-	struct fxls8962af_data *data = data_ptr;
-
-	regulator_disable(data->vdd_reg);
-}
-
 static void fxls8962af_pm_disable(void *dev_ptr)
 {
 	struct device *dev = dev_ptr;
@@ -1171,20 +1163,10 @@ int fxls8962af_core_probe(struct device *dev, struct regmap *regmap, int irq)
 	if (ret)
 		return ret;
 
-	data->vdd_reg = devm_regulator_get(dev, "vdd");
-	if (IS_ERR(data->vdd_reg))
-		return dev_err_probe(dev, PTR_ERR(data->vdd_reg),
-				     "Failed to get vdd regulator\n");
-
-	ret = regulator_enable(data->vdd_reg);
-	if (ret) {
-		dev_err(dev, "Failed to enable vdd regulator: %d\n", ret);
-		return ret;
-	}
-
-	ret = devm_add_action_or_reset(dev, fxls8962af_regulator_disable, data);
+	ret = devm_regulator_get_enable(dev, "vdd");
 	if (ret)
-		return ret;
+		return dev_err_probe(dev, ret,
+				     "Failed to get vdd regulator\n");
 
 	ret = regmap_read(data->regmap, FXLS8962AF_WHO_AM_I, &reg);
 	if (ret)