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hwmon: (gl520sm) 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 09:50:13 +08:00 • committed by Guenter Roeck
parent df51f2d7bc
commit d1b9c3f503
1 changed files with 35 additions and 61 deletions
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96
drivers/hwmon/gl520sm.c
View file

@ -75,7 +75,8 @@ static const u8 GL520_REG_TEMP_MAX_HYST[] = { 0x06, 0x18 };
/* Client data */ /* Client data */
struct gl520_data { struct gl520_data {
struct device *hwmon_dev; struct i2c_client *client;
const struct attribute_group *groups[3];
struct mutex update_lock; struct mutex update_lock;
char valid; /* zero until the following fields are valid */ char valid; /* zero until the following fields are valid */
unsigned long last_updated; /* in jiffies */ unsigned long last_updated; /* in jiffies */
@ -121,8 +122,8 @@ static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value)
static struct gl520_data *gl520_update_device(struct device *dev) static struct gl520_data *gl520_update_device(struct device *dev)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int val, i; int val, i;
mutex_lock(&data->update_lock); mutex_lock(&data->update_lock);
@ -255,8 +256,8 @@ static ssize_t get_in_max(struct device *dev, struct device_attribute *attr,
static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int n = to_sensor_dev_attr(attr)->index; int n = to_sensor_dev_attr(attr)->index;
u8 r; u8 r;
long v; long v;
@ -289,8 +290,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int n = to_sensor_dev_attr(attr)->index; int n = to_sensor_dev_attr(attr)->index;
u8 r; u8 r;
long v; long v;
@ -390,8 +391,8 @@ static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr,
static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int n = to_sensor_dev_attr(attr)->index; int n = to_sensor_dev_attr(attr)->index;
u8 r; u8 r;
unsigned long v; unsigned long v;
@ -429,8 +430,8 @@ 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, static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int n = to_sensor_dev_attr(attr)->index; int n = to_sensor_dev_attr(attr)->index;
u8 r; u8 r;
unsigned long v; unsigned long v;
@ -478,8 +479,8 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
u8 r; u8 r;
unsigned long v; unsigned long v;
int err; int err;
@ -546,8 +547,8 @@ static ssize_t get_temp_max_hyst(struct device *dev,
static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int n = to_sensor_dev_attr(attr)->index; int n = to_sensor_dev_attr(attr)->index;
long v; long v;
int err; int err;
@ -566,8 +567,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute
*attr, const char *buf, size_t count) *attr, const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int n = to_sensor_dev_attr(attr)->index; int n = to_sensor_dev_attr(attr)->index;
long v; long v;
int err; int err;
@ -619,8 +620,8 @@ static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr,
static ssize_t set_beep_enable(struct device *dev, struct device_attribute static ssize_t set_beep_enable(struct device *dev, struct device_attribute
*attr, const char *buf, size_t count) *attr, const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
u8 r; u8 r;
unsigned long v; unsigned long v;
int err; int err;
@ -643,8 +644,8 @@ static ssize_t set_beep_enable(struct device *dev, struct device_attribute
static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr, static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
unsigned long r; unsigned long r;
int err; int err;
@ -697,8 +698,8 @@ static ssize_t get_beep(struct device *dev, struct device_attribute *attr,
static ssize_t set_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) const char *buf, size_t count)
{ {
struct i2c_client *client = to_i2c_client(dev); struct gl520_data *data = dev_get_drvdata(dev);
struct gl520_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int bitnr = to_sensor_dev_attr(attr)->index; int bitnr = to_sensor_dev_attr(attr)->index;
unsigned long bit; unsigned long bit;
@ -877,58 +878,32 @@ static void gl520_init_client(struct i2c_client *client)
static int gl520_probe(struct i2c_client *client, static int gl520_probe(struct i2c_client *client,
const struct i2c_device_id *id) const struct i2c_device_id *id)
{ {
struct device *dev = &client->dev;
struct device *hwmon_dev;
struct gl520_data *data; struct gl520_data *data;
int err;
data = devm_kzalloc(&client->dev, sizeof(struct gl520_data), data = devm_kzalloc(dev, sizeof(struct gl520_data), GFP_KERNEL);
GFP_KERNEL);
if (!data) if (!data)
return -ENOMEM; return -ENOMEM;
i2c_set_clientdata(client, data); i2c_set_clientdata(client, data);
mutex_init(&data->update_lock); mutex_init(&data->update_lock);
data->client = client;
/* Initialize the GL520SM chip */ /* Initialize the GL520SM chip */
gl520_init_client(client); gl520_init_client(client);
/* Register sysfs hooks */ /* sysfs hooks */
err = sysfs_create_group(&client->dev.kobj, &gl520_group); data->groups[0] = &gl520_group;
if (err)
return err;
if (data->two_temps) if (data->two_temps)
err = sysfs_create_group(&client->dev.kobj, &gl520_group_temp2); data->groups[1] = &gl520_group_temp2;
else else
err = sysfs_create_group(&client->dev.kobj, &gl520_group_in4); data->groups[1] = &gl520_group_in4;
if (err) hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
goto exit_remove_files; data, data->groups);
return PTR_ERR_OR_ZERO(hwmon_dev);
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, &gl520_group);
sysfs_remove_group(&client->dev.kobj, &gl520_group_in4);
sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2);
return err;
}
static int gl520_remove(struct i2c_client *client)
{
struct gl520_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &gl520_group);
sysfs_remove_group(&client->dev.kobj, &gl520_group_in4);
sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2);
return 0;
} }
static const struct i2c_device_id gl520_id[] = { static const struct i2c_device_id gl520_id[] = {
@ -943,7 +918,6 @@ static struct i2c_driver gl520_driver = {
.name = "gl520sm", .name = "gl520sm",
}, },
.probe = gl520_probe, .probe = gl520_probe,
.remove = gl520_remove,
.id_table = gl520_id, .id_table = gl520_id,
.detect = gl520_detect, .detect = gl520_detect,
.address_list = normal_i2c, .address_list = normal_i2c,