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hwmon: (lm90) Convert to use hwmon_device_register_with_groups 

Simplify code, reduce code size, and attach hwmon attributes to hwmon device.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <jdelvare@suse.de>
This commit is contained in:
Guenter Roeck 2014-04-04 18:01:35 +02:00 committed by Jean Delvare
parent 084489e64c
commit 1de8b250f6
1 changed files with 17 additions and 22 deletions
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39
drivers/hwmon/lm90.c
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@ -365,6 +365,7 @@ enum lm90_temp11_reg_index {
*/
struct lm90_data {
struct i2c_client *client;
struct device *hwmon_dev;
const struct attribute_group *groups[6];
struct mutex update_lock;
@ -514,8 +515,8 @@ static void lm90_set_convrate(struct i2c_client *client, struct lm90_data *data,
static struct lm90_data *lm90_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm90_data *data = i2c_get_clientdata(client);
struct lm90_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
unsigned long next_update;
mutex_lock(&data->update_lock);
@ -794,8 +795,8 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
};
struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct lm90_data *data = i2c_get_clientdata(client);
struct lm90_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = attr->index;
long val;
int err;
@ -861,8 +862,8 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
};
struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
struct i2c_client *client = to_i2c_client(dev);
struct lm90_data *data = i2c_get_clientdata(client);
struct lm90_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = attr->nr;
int index = attr->index;
long val;
@ -923,8 +924,8 @@ static ssize_t show_temphyst(struct device *dev,
static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm90_data *data = i2c_get_clientdata(client);
struct lm90_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
long val;
int err;
int temp;
@ -977,8 +978,8 @@ static ssize_t set_update_interval(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct lm90_data *data = i2c_get_clientdata(client);
struct lm90_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
unsigned long val;
int err;
@ -1412,10 +1413,9 @@ static void lm90_restore_conf(struct i2c_client *client, struct lm90_data *data)
data->config_orig);
}
static void lm90_init_client(struct i2c_client *client)
static void lm90_init_client(struct i2c_client *client, struct lm90_data *data)
{
u8 config, convrate;
struct lm90_data *data = i2c_get_clientdata(client);
if (lm90_read_reg(client, LM90_REG_R_CONVRATE, &convrate) < 0) {
dev_warn(&client->dev, "Failed to read convrate register!\n");
@ -1530,6 +1530,7 @@ static int lm90_probe(struct i2c_client *client,
if (!data)
return -ENOMEM;
data->client = client;
i2c_set_clientdata(client, data);
mutex_init(&data->update_lock);
@ -1556,7 +1557,7 @@ static int lm90_probe(struct i2c_client *client,
data->max_convrate = lm90_params[data->kind].max_convrate;
/* Initialize the LM90 chip */
lm90_init_client(client);
lm90_init_client(client, data);
/* Register sysfs hooks */
data->groups[groups++] = &lm90_group;
@ -1579,14 +1580,11 @@ static int lm90_probe(struct i2c_client *client,
goto exit_restore;
}
err = sysfs_create_groups(&dev->kobj, data->groups);
if (err)
goto exit_remove_pec;
data->hwmon_dev = hwmon_device_register(dev);
data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
data, data->groups);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove_files;
goto exit_remove_pec;
}
if (client->irq) {
@ -1605,8 +1603,6 @@ static int lm90_probe(struct i2c_client *client,
exit_unregister:
hwmon_device_unregister(data->hwmon_dev);
exit_remove_files:
sysfs_remove_groups(&dev->kobj, data->groups);
exit_remove_pec:
device_remove_file(dev, &dev_attr_pec);
exit_restore:
@ -1621,7 +1617,6 @@ static int lm90_remove(struct i2c_client *client)
struct lm90_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_groups(&client->dev.kobj, data->groups);
device_remove_file(&client->dev, &dev_attr_pec);
lm90_restore_conf(client, data);
regulator_disable(data->regulator);