mfd: da9063: Replace mfd_add_devices with devm counterpart

Use devm_mfd_add_devices() instead of plain mfd_add_devices(), which
removes the need for da9063_device_exit() altogether and also for the
.remove callback in da9063-i2c.c .
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/da9063-core.c

@@ -226,20 +226,15 @@ int da9063_device_init(struct da9063 *da9063, unsigned int irq)
 
 	da9063->irq_base = regmap_irq_chip_get_base(da9063->regmap_irq);
 
-	ret = mfd_add_devices(da9063->dev, -1, da9063_devs,
-			      ARRAY_SIZE(da9063_devs), NULL, da9063->irq_base,
-			      NULL);
+	ret = devm_mfd_add_devices(da9063->dev, -1, da9063_devs,
+				   ARRAY_SIZE(da9063_devs), NULL,
+				   da9063->irq_base, NULL);
 	if (ret)
 		dev_err(da9063->dev, "Cannot add MFD cells\n");
 
 	return ret;
 }
 
-void da9063_device_exit(struct da9063 *da9063)
-{
-	mfd_remove_devices(da9063->dev);
-}
-
 MODULE_DESCRIPTION("PMIC driver for Dialog DA9063");
 MODULE_AUTHOR("Krystian Garbaciak");
 MODULE_AUTHOR("Michal Hajduk");

drivers/mfd/da9063-i2c.c

@@ -270,15 +270,6 @@ static int da9063_i2c_probe(struct i2c_client *i2c,
 	return da9063_device_init(da9063, i2c->irq);
 }
 
-static int da9063_i2c_remove(struct i2c_client *i2c)
-{
-	struct da9063 *da9063 = i2c_get_clientdata(i2c);
-
-	da9063_device_exit(da9063);
-
-	return 0;
-}
-
 static const struct i2c_device_id da9063_i2c_id[] = {
 	{"da9063", PMIC_DA9063},
 	{},
@@ -291,7 +282,6 @@ static struct i2c_driver da9063_i2c_driver = {
 		.of_match_table = of_match_ptr(da9063_dt_ids),
 	},
 	.probe    = da9063_i2c_probe,
-	.remove   = da9063_i2c_remove,
 	.id_table = da9063_i2c_id,
 };
 

include/linux/mfd/da9063/core.h

@@ -94,6 +94,4 @@ struct da9063 {
 int da9063_device_init(struct da9063 *da9063, unsigned int irq);
 int da9063_irq_init(struct da9063 *da9063);
 
-void da9063_device_exit(struct da9063 *da9063);
-
 #endif /* __MFD_DA9063_CORE_H__ */