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hwmon: (thmc50) Convert to devm_hwmon_device_register_with_groups 

Use 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 2014-07-17 19:06:08 +08:00 committed by Guenter Roeck
parent 9b38a66e1a
commit 86fd260e0b
1 changed files with 25 additions and 53 deletions
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78
drivers/hwmon/thmc50.c
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@ -68,7 +68,8 @@ static const u8 THMC50_REG_TEMP_DEFAULT[] = { 0x17, 0x18, 0x18 };
/* Each client has this additional data */ /* Each client has this additional data */
struct thmc50_data { struct thmc50_data {
struct device *hwmon_dev; struct i2c_client *client;
const struct attribute_group *groups[3];
struct mutex update_lock; struct mutex update_lock;
enum chips type; enum chips type;
@ -87,8 +88,8 @@ struct thmc50_data {
static struct thmc50_data *thmc50_update_device(struct device *dev) static struct thmc50_data *thmc50_update_device(struct device *dev)
{ {
struct i2c_client *client = to_i2c_client(dev); struct thmc50_data *data = dev_get_drvdata(dev);
struct thmc50_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0); int timeout = HZ / 5 + (data->type == thmc50 ? HZ : 0);
mutex_lock(&data->update_lock); mutex_lock(&data->update_lock);
@ -138,8 +139,8 @@ static ssize_t set_analog_out(struct device *dev,
struct device_attribute *attr, 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 thmc50_data *data = dev_get_drvdata(dev);
struct thmc50_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int config; int config;
unsigned long tmp; unsigned long tmp;
int err; int err;
@ -192,8 +193,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
int nr = to_sensor_dev_attr(attr)->index; int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev); struct thmc50_data *data = dev_get_drvdata(dev);
struct thmc50_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
long val; long val;
int err; int err;
@ -221,8 +222,8 @@ 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)
{ {
int nr = to_sensor_dev_attr(attr)->index; int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev); struct thmc50_data *data = dev_get_drvdata(dev);
struct thmc50_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
long val; long val;
int err; int err;
@ -370,9 +371,9 @@ static int thmc50_detect(struct i2c_client *client,
return 0; return 0;
} }
static void thmc50_init_client(struct i2c_client *client) static void thmc50_init_client(struct thmc50_data *data)
{ {
struct thmc50_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int config; int config;
data->analog_out = i2c_smbus_read_byte_data(client, data->analog_out = i2c_smbus_read_byte_data(client,
@ -393,59 +394,31 @@ static void thmc50_init_client(struct i2c_client *client)
static int thmc50_probe(struct i2c_client *client, static int thmc50_probe(struct i2c_client *client,
const struct i2c_device_id *id) const struct i2c_device_id *id)
{ {
struct device *dev = &client->dev;
struct thmc50_data *data; struct thmc50_data *data;
int err; struct device *hwmon_dev;
int idx = 0;
data = devm_kzalloc(&client->dev, sizeof(struct thmc50_data), data = devm_kzalloc(dev, sizeof(struct thmc50_data), GFP_KERNEL);
GFP_KERNEL);
if (!data) if (!data)
return -ENOMEM; return -ENOMEM;
i2c_set_clientdata(client, data); data->client = client;
data->type = id->driver_data; data->type = id->driver_data;
mutex_init(&data->update_lock); mutex_init(&data->update_lock);
thmc50_init_client(client); thmc50_init_client(data);
/* Register sysfs hooks */ /* sysfs hooks */
err = sysfs_create_group(&client->dev.kobj, &thmc50_group); data->groups[idx++] = &thmc50_group;
if (err)
return err;
/* Register ADM1022 sysfs hooks */ /* Register additional ADM1022 sysfs hooks */
if (data->has_temp3) {
err = sysfs_create_group(&client->dev.kobj, &temp3_group);
if (err)
goto exit_remove_sysfs_thmc50;
}
/* Register a new directory entry with module sensors */
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove_sysfs;
}
return 0;
exit_remove_sysfs:
if (data->has_temp3) if (data->has_temp3)
sysfs_remove_group(&client->dev.kobj, &temp3_group); data->groups[idx++] = &temp3_group;
exit_remove_sysfs_thmc50:
sysfs_remove_group(&client->dev.kobj, &thmc50_group);
return err;
}
static int thmc50_remove(struct i2c_client *client) hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
{ data, data->groups);
struct thmc50_data *data = i2c_get_clientdata(client); return PTR_ERR_OR_ZERO(hwmon_dev);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &thmc50_group);
if (data->has_temp3)
sysfs_remove_group(&client->dev.kobj, &temp3_group);
return 0;
} }
static const struct i2c_device_id thmc50_id[] = { static const struct i2c_device_id thmc50_id[] = {
@ -461,7 +434,6 @@ static struct i2c_driver thmc50_driver = {
.name = "thmc50", .name = "thmc50",
}, },
.probe = thmc50_probe, .probe = thmc50_probe,
.remove = thmc50_remove,
.id_table = thmc50_id, .id_table = thmc50_id,
.detect = thmc50_detect, .detect = thmc50_detect,
.address_list = normal_i2c, .address_list = normal_i2c,