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path: root/drivers/regulator/lp3972.c
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Diffstat (limited to 'drivers/regulator/lp3972.c')
-rw-r--r--drivers/regulator/lp3972.c41
1 files changed, 6 insertions, 35 deletions
diff --git a/drivers/regulator/lp3972.c b/drivers/regulator/lp3972.c
index 093e6f44ff8..aea485afcc1 100644
--- a/drivers/regulator/lp3972.c
+++ b/drivers/regulator/lp3972.c
@@ -22,8 +22,6 @@ struct lp3972 {
struct device *dev;
struct mutex io_lock;
struct i2c_client *i2c;
- int num_regulators;
- struct regulator_dev **rdev;
};
/* LP3972 Control Registers */
@@ -478,41 +476,27 @@ static int setup_regulators(struct lp3972 *lp3972,
{
int i, err;
- lp3972->num_regulators = pdata->num_regulators;
- lp3972->rdev = kcalloc(pdata->num_regulators,
- sizeof(struct regulator_dev *), GFP_KERNEL);
- if (!lp3972->rdev) {
- err = -ENOMEM;
- goto err_nomem;
- }
-
/* Instantiate the regulators */
for (i = 0; i < pdata->num_regulators; i++) {
struct lp3972_regulator_subdev *reg = &pdata->regulators[i];
struct regulator_config config = { };
+ struct regulator_dev *rdev;
config.dev = lp3972->dev;
config.init_data = reg->initdata;
config.driver_data = lp3972;
- lp3972->rdev[i] = regulator_register(&regulators[reg->id],
- &config);
- if (IS_ERR(lp3972->rdev[i])) {
- err = PTR_ERR(lp3972->rdev[i]);
+ rdev = devm_regulator_register(lp3972->dev,
+ &regulators[reg->id], &config);
+ if (IS_ERR(rdev)) {
+ err = PTR_ERR(rdev);
dev_err(lp3972->dev, "regulator init failed: %d\n",
err);
- goto error;
+ return err;
}
}
return 0;
-error:
- while (--i >= 0)
- regulator_unregister(lp3972->rdev[i]);
- kfree(lp3972->rdev);
- lp3972->rdev = NULL;
-err_nomem:
- return err;
}
static int lp3972_i2c_probe(struct i2c_client *i2c,
@@ -557,18 +541,6 @@ static int lp3972_i2c_probe(struct i2c_client *i2c,
return 0;
}
-static int lp3972_i2c_remove(struct i2c_client *i2c)
-{
- struct lp3972 *lp3972 = i2c_get_clientdata(i2c);
- int i;
-
- for (i = 0; i < lp3972->num_regulators; i++)
- regulator_unregister(lp3972->rdev[i]);
- kfree(lp3972->rdev);
-
- return 0;
-}
-
static const struct i2c_device_id lp3972_i2c_id[] = {
{ "lp3972", 0 },
{ }
@@ -581,7 +553,6 @@ static struct i2c_driver lp3972_i2c_driver = {
.owner = THIS_MODULE,
},
.probe = lp3972_i2c_probe,
- .remove = lp3972_i2c_remove,
.id_table = lp3972_i2c_id,
};