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hwmon: (adm1025) Convert to devm_hwmon_device_register_with_groups

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Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to
simplify the code a bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Axel Lin 2014-07-03 21:49:27 +08:00 committed by Guenter Roeck
parent 851a7afa82
commit aab3f57a11
1 changed files with 23 additions and 48 deletions
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71
drivers/hwmon/adm1025.c
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@ -107,7 +107,8 @@ static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
*/
struct adm1025_data {
struct device *hwmon_dev;
struct i2c_client *client;
const struct attribute_group *groups[3];
struct mutex update_lock;
char valid; /* zero until following fields are valid */
unsigned long last_updated; /* in jiffies */
@ -125,8 +126,8 @@ struct adm1025_data {
static struct adm1025_data *adm1025_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1025_data *data = i2c_get_clientdata(client);
struct adm1025_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
mutex_lock(&data->update_lock);
@ -227,8 +228,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int index = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1025_data *data = i2c_get_clientdata(client);
struct adm1025_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
long val;
int err;
@ -248,8 +249,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int index = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1025_data *data = i2c_get_clientdata(client);
struct adm1025_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
long val;
int err;
@ -283,8 +284,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int index = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1025_data *data = i2c_get_clientdata(client);
struct adm1025_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
long val;
int err;
@ -304,8 +305,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
int index = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev);
struct adm1025_data *data = i2c_get_clientdata(client);
struct adm1025_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
long val;
int err;
@ -525,57 +526,32 @@ static void adm1025_init_client(struct i2c_client *client)
static int adm1025_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device *hwmon_dev;
struct adm1025_data *data;
int err;
u8 config;
data = devm_kzalloc(&client->dev, sizeof(struct adm1025_data),
GFP_KERNEL);
data = devm_kzalloc(dev, sizeof(struct adm1025_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(client, data);
data->client = client;
mutex_init(&data->update_lock);
/* Initialize the ADM1025 chip */
adm1025_init_client(client);
/* Register sysfs hooks */
err = sysfs_create_group(&client->dev.kobj, &adm1025_group);
if (err)
return err;
/* sysfs hooks */
data->groups[0] = &adm1025_group;
/* Pin 11 is either in4 (+12V) or VID4 */
config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
if (!(config & 0x20)) {
err = sysfs_create_group(&client->dev.kobj, &adm1025_group_in4);
if (err)
goto exit_remove;
}
if (!(config & 0x20))
data->groups[1] = &adm1025_group_in4;
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove;
}
return 0;
exit_remove:
sysfs_remove_group(&client->dev.kobj, &adm1025_group);
sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
return err;
}
static int adm1025_remove(struct i2c_client *client)
{
struct adm1025_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &adm1025_group);
sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
return 0;
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
data, data->groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
}
static const struct i2c_device_id adm1025_id[] = {
@ -591,7 +567,6 @@ static struct i2c_driver adm1025_driver = {
.name = "adm1025",
},
.probe = adm1025_probe,
.remove = adm1025_remove,
.id_table = adm1025_id,
.detect = adm1025_detect,
.address_list = normal_i2c,