Input: pinephone-keyboard - use devm_regulator_get_enable()

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

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/78d7a4719ed7c372a7aa62afb66d4f1561799b5f.1686985515.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

drivers/input/keyboard/pinephone-keyboard.c

@@ -318,40 +318,22 @@ static void ppkb_close(struct input_dev *input)
 	ppkb_set_scan(client, false);
 }
 
-static void ppkb_regulator_disable(void *regulator)
-{
-	regulator_disable(regulator);
-}
-
 static int ppkb_probe(struct i2c_client *client)
 {
 	struct device *dev = &client->dev;
 	unsigned int phys_rows, phys_cols;
 	struct pinephone_keyboard *ppkb;
-	struct regulator *vbat_supply;
 	u8 info[PPKB_MATRIX_SIZE + 1];
 	struct device_node *i2c_bus;
 	int ret;
 	int error;
 
-	vbat_supply = devm_regulator_get(dev, "vbat");
-	error = PTR_ERR_OR_ZERO(vbat_supply);
+	error = devm_regulator_get_enable(dev, "vbat");
 	if (error) {
 		dev_err(dev, "Failed to get VBAT supply: %d\n", error);
 		return error;
 	}
 
-	error = regulator_enable(vbat_supply);
-	if (error) {
-		dev_err(dev, "Failed to enable VBAT: %d\n", error);
-		return error;
-	}
-
-	error = devm_add_action_or_reset(dev, ppkb_regulator_disable,
-					 vbat_supply);
-	if (error)
-		return error;
-
 	ret = i2c_smbus_read_i2c_block_data(client, 0, sizeof(info), info);
 	if (ret != sizeof(info)) {
 		error = ret < 0 ? ret : -EIO;