power: supply: bq25890: Use the devm_regmap_field_bulk_alloc() helper

Use the devm_regmap_field_bulk_alloc() helper function instead of
open-coding this ourselves.
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

drivers/power/supply/bq25890_charger.c

@@ -1165,7 +1165,6 @@ static int bq25890_probe(struct i2c_client *client,
 	struct device *dev = &client->dev;
 	struct bq25890_device *bq;
 	int ret;
-	int i;
 
 	bq = devm_kzalloc(dev, sizeof(*bq), GFP_KERNEL);
 	if (!bq)
@@ -1182,15 +1181,10 @@ static int bq25890_probe(struct i2c_client *client,
 		return dev_err_probe(dev, PTR_ERR(bq->rmap),
 				     "failed to allocate register map\n");
 
-	for (i = 0; i < ARRAY_SIZE(bq25890_reg_fields); i++) {
-		const struct reg_field *reg_fields = bq25890_reg_fields;
-
-		bq->rmap_fields[i] = devm_regmap_field_alloc(dev, bq->rmap,
-							     reg_fields[i]);
-		if (IS_ERR(bq->rmap_fields[i]))
-			return dev_err_probe(dev, PTR_ERR(bq->rmap_fields[i]),
-					     "cannot allocate regmap field\n");
-	}
+	ret = devm_regmap_field_bulk_alloc(dev, bq->rmap, bq->rmap_fields,
+					   bq25890_reg_fields, F_MAX_FIELDS);
+	if (ret)
+		return ret;
 
 	i2c_set_clientdata(client, bq);