Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to
simplify the code a bit.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
drivers/hwmon/adm1029.c | 55 ++++++++++++++-----------------------------------
1 file changed, 15 insertions(+), 40 deletions(-)
diff --git a/drivers/hwmon/adm1029.c b/drivers/hwmon/adm1029.c
index 7782de9..1cd11b3 100644
--- a/drivers/hwmon/adm1029.c
+++ b/drivers/hwmon/adm1029.c
@@ -110,7 +110,7 @@ static const u8 ADM1029_REG_FAN_DIV[] = {
*/
struct adm1029_data {
- struct device *hwmon_dev;
+ struct i2c_client *client;
struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
@@ -126,8 +126,8 @@ struct adm1029_data {
*/
static struct adm1029_data *adm1029_update_device(struct device *dev)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1029_data *data = i2c_get_clientdata(client);
+ struct adm1029_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
mutex_lock(&data->update_lock);
/*
@@ -207,8 +207,8 @@ show_fan_div(struct device *dev, struct device_attribute *devattr, char *buf)
static ssize_t set_fan_div(struct device *dev,
struct device_attribute *devattr, const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1029_data *data = i2c_get_clientdata(client);
+ struct adm1029_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
u8 reg;
long val;
@@ -277,7 +277,7 @@ static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR,
static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR,
show_fan_div, set_fan_div, 1);
-static struct attribute *adm1029_attributes[] = {
+static struct attribute *adm1029_attrs[] = {
&sensor_dev_attr_temp1_input.dev_attr.attr,
&sensor_dev_attr_temp1_min.dev_attr.attr,
&sensor_dev_attr_temp1_max.dev_attr.attr,
@@ -296,9 +296,7 @@ static struct attribute *adm1029_attributes[] = {
NULL
};
-static const struct attribute_group adm1029_group = {
- .attrs = adm1029_attributes,
-};
+ATTRIBUTE_GROUPS(adm1029);
/*
* Real code
@@ -368,15 +366,15 @@ static int adm1029_init_client(struct i2c_client *client)
static int adm1029_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ struct device *dev = &client->dev;
struct adm1029_data *data;
- int err;
+ struct device *hwmon_dev;
- data = devm_kzalloc(&client->dev, sizeof(struct adm1029_data),
- GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(struct adm1029_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- i2c_set_clientdata(client, data);
+ data->client = client;
mutex_init(&data->update_lock);
/*
@@ -386,32 +384,10 @@ static int adm1029_probe(struct i2c_client *client,
if (adm1029_init_client(client) == 0)
return -ENODEV;
- /* Register sysfs hooks */
- err = sysfs_create_group(&client->dev.kobj, &adm1029_group);
- if (err)
- return err;
-
- data->hwmon_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove_files;
- }
-
- return 0;
-
- exit_remove_files:
- sysfs_remove_group(&client->dev.kobj, &adm1029_group);
- return err;
-}
-
-static int adm1029_remove(struct i2c_client *client)
-{
- struct adm1029_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &adm1029_group);
-
- return 0;
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+ data,
+ adm1029_groups);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
}
static const struct i2c_device_id adm1029_id[] = {
@@ -426,7 +402,6 @@ static struct i2c_driver adm1029_driver = {
.name = "adm1029",
},
.probe = adm1029_probe,
- .remove = adm1029_remove,
.id_table = adm1029_id,
.detect = adm1029_detect,
.address_list = normal_i2c,
--
1.9.1
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