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iio: proximity: rfd77402: convert probe to device-managed functions 

This change converts the probe hook to register the IIO device with
devm_iio_device_register() and register a hook with
devm_add_action_or_reset() to put the device in powerdown when the driver
gets unloaded.

Since the PM suspend/resume functions need only a reference to the
i2c_client object (which can be obtained from the base device object), the
i2c_set_clientdata() call can be removed.

Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com>
Link: https://lore.kernel.org/r/20210630131636.1563148-2-aardelean@deviqon.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Alexandru Ardelean 2021-06-30 16:16:36 +03:00 committed by Jonathan Cameron
parent 09d5135b6f
commit 148da125a0
1 changed files with 8 additions and 19 deletions
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27
drivers/iio/proximity/rfd77402.c
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@ -252,6 +252,11 @@ static int rfd77402_powerdown(struct i2c_client *client)
RFD77402_STATUS_STANDBY);
}
static void rfd77402_disable(void *client)
{
rfd77402_powerdown(client);
}
static int rfd77402_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
@ -270,7 +275,6 @@ static int rfd77402_probe(struct i2c_client *client,
return -ENOMEM;
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
data->client = client;
mutex_init(&data->lock);
@ -284,25 +288,11 @@ static int rfd77402_probe(struct i2c_client *client,
if (ret < 0)
return ret;
ret = iio_device_register(indio_dev);
ret = devm_add_action_or_reset(&client->dev, rfd77402_disable, client);
if (ret)
goto err_powerdown;
return ret;
return 0;
err_powerdown:
rfd77402_powerdown(client);
return ret;
}
static int rfd77402_remove(struct i2c_client *client)
{
struct iio_dev *indio_dev = i2c_get_clientdata(client);
iio_device_unregister(indio_dev);
rfd77402_powerdown(client);
return 0;
return devm_iio_device_register(&client->dev, indio_dev);
}
#ifdef CONFIG_PM_SLEEP
@ -331,7 +321,6 @@ static struct i2c_driver rfd77402_driver = {
.pm = &rfd77402_pm_ops,
},
.probe = rfd77402_probe,
.remove = rfd77402_remove,
.id_table = rfd77402_id,
};