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regulator: lp3972: Convert to devm_regulator_register

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Both num_regulators and **rdev are no longer required after this conversion,
thus remove them from struct lp3972.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
This commit is contained in:
Axel Lin 2013-11-13 14:55:14 +08:00 committed by Mark Brown
parent 6ce4eac1f6
commit 93227c8013
1 changed files with 6 additions and 35 deletions
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41
drivers/regulator/lp3972.c
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@ -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,
};