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hwmon: (smm665) 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 2014-07-02 20:26:32 +08:00 committed by Guenter Roeck
parent 4341fc3f32
commit 781126a0c8
1 changed files with 16 additions and 28 deletions
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44
drivers/hwmon/smm665.c
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@ -140,7 +140,7 @@ enum chips { smm465, smm665, smm665c, smm764, smm766 };
struct smm665_data {
enum chips type;
int conversion_time; /* ADC conversion time */
struct device *hwmon_dev;
struct i2c_client *client;
struct mutex update_lock;
bool valid;
unsigned long last_updated; /* in jiffies */
@ -239,8 +239,8 @@ static int smm665_read_adc(struct smm665_data *data, int adc)
static struct smm665_data *smm665_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct smm665_data *data = i2c_get_clientdata(client);
struct smm665_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
struct smm665_data *ret = data;
mutex_lock(&data->update_lock);
@ -315,32 +315,28 @@ static int smm665_convert(u16 adcval, int index)
static int smm665_get_min(struct device *dev, int index)
{
struct i2c_client *client = to_i2c_client(dev);
struct smm665_data *data = i2c_get_clientdata(client);
struct smm665_data *data = dev_get_drvdata(dev);
return data->alarm_min_limit[index];
}
static int smm665_get_max(struct device *dev, int index)
{
struct i2c_client *client = to_i2c_client(dev);
struct smm665_data *data = i2c_get_clientdata(client);
struct smm665_data *data = dev_get_drvdata(dev);
return data->alarm_max_limit[index];
}
static int smm665_get_lcrit(struct device *dev, int index)
{
struct i2c_client *client = to_i2c_client(dev);
struct smm665_data *data = i2c_get_clientdata(client);
struct smm665_data *data = dev_get_drvdata(dev);
return data->critical_min_limit[index];
}
static int smm665_get_crit(struct device *dev, int index)
{
struct i2c_client *client = to_i2c_client(dev);
struct smm665_data *data = i2c_get_clientdata(client);
struct smm665_data *data = dev_get_drvdata(dev);
return data->critical_max_limit[index];
}
@ -486,7 +482,7 @@ SMM665_ATTR(temp1, crit_alarm, SMM665_FAULT_TEMP);
* Finally, construct an array of pointers to members of the above objects,
* as required for sysfs_create_group()
*/
static struct attribute *smm665_attributes[] = {
static struct attribute *smm665_attrs[] = {
&sensor_dev_attr_in1_input.dev_attr.attr,
&sensor_dev_attr_in1_min.dev_attr.attr,
&sensor_dev_attr_in1_max.dev_attr.attr,
@ -567,15 +563,14 @@ static struct attribute *smm665_attributes[] = {
NULL,
};
static const struct attribute_group smm665_group = {
.attrs = smm665_attributes,
};
ATTRIBUTE_GROUPS(smm665);
static int smm665_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct i2c_adapter *adapter = client->adapter;
struct smm665_data *data;
struct device *hwmon_dev;
int i, ret;
if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA
@ -592,6 +587,7 @@ static int smm665_probe(struct i2c_client *client,
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
data->client = client;
data->type = id->driver_data;
data->cmdreg = i2c_new_dummy(adapter, (client->addr & ~SMM665_REGMASK)
| SMM665_CMDREG_BASE);
@ -662,21 +658,16 @@ static int smm665_probe(struct i2c_client *client,
data->alarm_max_limit[i] = smm665_convert(val, i);
}
/* Register sysfs hooks */
ret = sysfs_create_group(&client->dev.kobj, &smm665_group);
if (ret)
hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
client->name, data,
smm665_groups);
if (IS_ERR(hwmon_dev)) {
ret = PTR_ERR(hwmon_dev);
goto out_unregister;
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
ret = PTR_ERR(data->hwmon_dev);
goto out_remove_group;
}
return 0;
out_remove_group:
sysfs_remove_group(&client->dev.kobj, &smm665_group);
out_unregister:
i2c_unregister_device(data->cmdreg);
return ret;
@ -687,9 +678,6 @@ static int smm665_remove(struct i2c_client *client)
struct smm665_data *data = i2c_get_clientdata(client);
i2c_unregister_device(data->cmdreg);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &smm665_group);
return 0;
}