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authorAlexandru Ardelean <aardelean@deviqon.com>2021-03-10 11:38:00 +0200
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2021-03-25 19:13:51 +0000
commit70da64153123460a10f3cb53fa9edca3a0ec2727 (patch)
treeadd23cec8b7768e69701e79e3370d742908c231f
parent218bc53dc70022ac31381b43c82f4097a95b8605 (diff)
downloadlinux-70da64153123460a10f3cb53fa9edca3a0ec2727.tar.bz2
iio: temperature: tmp007: use device-managed functions in probe
This change converts the driver to use device-managed functions in the probe function. The power-down call is handled now via a devm_add_action_or_reset() hook, and then devm_iio_device_register() can be used to register the IIO device. The final aim here would be for IIO to export only the device-managed functions of it's API. That's a long way to go and this a small step in that direction. Signed-off-by: Alexandru Ardelean <aardelean@deviqon.com> Link: https://lore.kernel.org/r/20210310093800.45822-1-aardelean@deviqon.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
-rw-r--r--drivers/iio/temperature/tmp007.c36
1 files changed, 15 insertions, 21 deletions
diff --git a/drivers/iio/temperature/tmp007.c b/drivers/iio/temperature/tmp007.c
index ad2b35c65548..b422371a4674 100644
--- a/drivers/iio/temperature/tmp007.c
+++ b/drivers/iio/temperature/tmp007.c
@@ -439,6 +439,13 @@ static bool tmp007_identify(struct i2c_client *client)
return (manf_id == TMP007_MANUFACTURER_MAGIC && dev_id == TMP007_DEVICE_MAGIC);
}
+static void tmp007_powerdown_action_cb(void *priv)
+{
+ struct tmp007_data *data = priv;
+
+ tmp007_powerdown(data);
+}
+
static int tmp007_probe(struct i2c_client *client,
const struct i2c_device_id *tmp007_id)
{
@@ -489,6 +496,10 @@ static int tmp007_probe(struct i2c_client *client,
if (ret < 0)
return ret;
+ ret = devm_add_action_or_reset(&client->dev, tmp007_powerdown_action_cb, data);
+ if (ret)
+ return ret;
+
/*
* Only the following flags can activate ALERT pin. Data conversion/validity flags
* flags can still be polled for getting temperature data
@@ -502,7 +513,7 @@ static int tmp007_probe(struct i2c_client *client,
ret = i2c_smbus_read_word_swapped(data->client, TMP007_STATUS_MASK);
if (ret < 0)
- goto error_powerdown;
+ return ret;
data->status_mask = ret;
data->status_mask |= (TMP007_STATUS_OHF | TMP007_STATUS_OLF
@@ -510,7 +521,7 @@ static int tmp007_probe(struct i2c_client *client,
ret = i2c_smbus_write_word_swapped(data->client, TMP007_STATUS_MASK, data->status_mask);
if (ret < 0)
- goto error_powerdown;
+ return ret;
if (client->irq) {
ret = devm_request_threaded_irq(&client->dev, client->irq,
@@ -519,27 +530,11 @@ static int tmp007_probe(struct i2c_client *client,
tmp007_id->name, indio_dev);
if (ret) {
dev_err(&client->dev, "irq request error %d\n", -ret);
- goto error_powerdown;
+ return ret;
}
}
- return iio_device_register(indio_dev);
-
-error_powerdown:
- tmp007_powerdown(data);
-
- return ret;
-}
-
-static int tmp007_remove(struct i2c_client *client)
-{
- struct iio_dev *indio_dev = i2c_get_clientdata(client);
- struct tmp007_data *data = iio_priv(indio_dev);
-
- iio_device_unregister(indio_dev);
- tmp007_powerdown(data);
-
- return 0;
+ return devm_iio_device_register(&client->dev, indio_dev);
}
#ifdef CONFIG_PM_SLEEP
@@ -582,7 +577,6 @@ static struct i2c_driver tmp007_driver = {
.pm = &tmp007_pm_ops,
},
.probe = tmp007_probe,
- .remove = tmp007_remove,
.id_table = tmp007_id,
};
module_i2c_driver(tmp007_driver);