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hwmon: (gl518sm) Convert to devm_hwmon_device_register_with_groups

Browse source 
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 09:48:04 +08:00 committed by Guenter Roeck
parent d4a972a339
commit 18faf5b9be
1 changed files with 25 additions and 51 deletions
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76
drivers/hwmon/gl518sm.c
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@ -114,7 +114,8 @@ static inline u8 FAN_TO_REG(long rpm, int div)
/* Each client has this additional data */
struct gl518_data {
struct device *hwmon_dev;
struct i2c_client *client;
const struct attribute_group *groups[3];
enum chips type;
struct mutex update_lock;
@ -160,8 +161,8 @@ static int gl518_write_value(struct i2c_client *client, u8 reg, u16 value)
static struct gl518_data *gl518_update_device(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct gl518_data *data = i2c_get_clientdata(client);
struct gl518_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int val;
mutex_lock(&data->update_lock);
@ -293,8 +294,8 @@ static ssize_t set_##suffix(struct device *dev, \
struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
struct i2c_client *client = to_i2c_client(dev); \
struct gl518_data *data = i2c_get_clientdata(client); \
struct gl518_data *data = dev_get_drvdata(dev); \
struct i2c_client *client = data->client; \
long val; \
int err = kstrtol(buf, 10, &val); \
if (err) \
@ -312,8 +313,8 @@ static ssize_t set_##suffix(struct device *dev, \
struct device_attribute *attr, \
const char *buf, size_t count) \
{ \
struct i2c_client *client = to_i2c_client(dev); \
struct gl518_data *data = i2c_get_clientdata(client); \
struct gl518_data *data = dev_get_drvdata(dev); \
struct i2c_client *client = data->client; \
int regvalue; \
unsigned long val; \
int err = kstrtoul(buf, 10, &val); \
@ -351,8 +352,8 @@ set(BEEP_MASK, beep_mask, beep_mask, GL518_REG_ALARM);
static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct gl518_data *data = i2c_get_clientdata(client);
struct gl518_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
int regvalue;
unsigned long val;
@ -384,8 +385,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct gl518_data *data = i2c_get_clientdata(client);
struct gl518_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
int regvalue;
unsigned long val;
@ -485,8 +486,8 @@ static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct gl518_data *data = i2c_get_clientdata(client);
struct gl518_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
int bitnr = to_sensor_dev_attr(attr)->index;
unsigned long bit;
int err;
@ -627,15 +628,16 @@ static void gl518_init_client(struct i2c_client *client)
static int gl518_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct device *hwmon_dev;
struct gl518_data *data;
int err, revision;
int revision;
data = devm_kzalloc(&client->dev, sizeof(struct gl518_data),
GFP_KERNEL);
data = devm_kzalloc(dev, sizeof(struct gl518_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(client, data);
data->client = client;
revision = gl518_read_value(client, GL518_REG_REVISION);
data->type = revision == 0x80 ? gl518sm_r80 : gl518sm_r00;
mutex_init(&data->update_lock);
@ -644,41 +646,14 @@ static int gl518_probe(struct i2c_client *client,
data->alarm_mask = 0xff;
gl518_init_client(client);
/* Register sysfs hooks */
err = sysfs_create_group(&client->dev.kobj, &gl518_group);
if (err)
return err;
if (data->type == gl518sm_r80) {
err = sysfs_create_group(&client->dev.kobj, &gl518_group_r80);
if (err)
goto exit_remove_files;
}
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, &gl518_group);
/* sysfs hooks */
data->groups[0] = &gl518_group;
if (data->type == gl518sm_r80)
sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
return err;
}
data->groups[1] = &gl518_group_r80;
static int gl518_remove(struct i2c_client *client)
{
struct gl518_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &gl518_group);
if (data->type == gl518sm_r80)
sysfs_remove_group(&client->dev.kobj, &gl518_group_r80);
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 gl518_id[] = {
@ -693,7 +668,6 @@ static struct i2c_driver gl518_driver = {
.name = "gl518sm",
},
.probe = gl518_probe,
.remove = gl518_remove,
.id_table = gl518_id,
.detect = gl518_detect,
.address_list = normal_i2c,