diff options
| -rw-r--r-- | drivers/hwmon/lm77.c | 53 |
1 files changed, 14 insertions, 39 deletions
diff --git a/drivers/hwmon/lm77.c b/drivers/hwmon/lm77.c index ab1752a5b46f..5ceb443b938d 100644 --- a/drivers/hwmon/lm77.c +++ b/drivers/hwmon/lm77.c @@ -62,7 +62,7 @@ static const u8 temp_regs[t_num_temp] = { /* Each client has this additional data */ struct lm77_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; char valid; unsigned long last_updated; /* In jiffies */ @@ -111,8 +111,8 @@ static int lm77_write_value(struct i2c_client *client, u8 reg, u16 value) static struct lm77_data *lm77_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct lm77_data *data = i2c_get_clientdata(client); + struct lm77_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int i; mutex_lock(&data->update_lock); @@ -165,8 +165,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct lm77_data *data = i2c_get_clientdata(client); + struct lm77_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = attr->index; long val; int err; @@ -190,8 +190,8 @@ static ssize_t set_temp_hyst(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct lm77_data *data = i2c_get_clientdata(client); + struct lm77_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -232,7 +232,7 @@ static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 2); static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL, 0); static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 1); -static struct attribute *lm77_attributes[] = { +static struct attribute *lm77_attrs[] = { &sensor_dev_attr_temp1_input.dev_attr.attr, &sensor_dev_attr_temp1_crit.dev_attr.attr, &sensor_dev_attr_temp1_min.dev_attr.attr, @@ -245,10 +245,7 @@ static struct attribute *lm77_attributes[] = { &sensor_dev_attr_temp1_max_alarm.dev_attr.attr, NULL }; - -static const struct attribute_group lm77_group = { - .attrs = lm77_attributes, -}; +ATTRIBUTE_GROUPS(lm77); /* Return 0 if detection is successful, -ENODEV otherwise */ static int lm77_detect(struct i2c_client *client, struct i2c_board_info *info) @@ -332,43 +329,22 @@ static void lm77_init_client(struct i2c_client *client) static int lm77_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct device *dev = &client->dev; + struct device *hwmon_dev; struct lm77_data *data; - int err; data = devm_kzalloc(dev, sizeof(struct lm77_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); /* Initialize the LM77 chip */ lm77_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&dev->kobj, &lm77_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - -exit_remove: - sysfs_remove_group(&dev->kobj, &lm77_group); - return err; -} - -static int lm77_remove(struct i2c_client *client) -{ - struct lm77_data *data = i2c_get_clientdata(client); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &lm77_group); - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, lm77_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id lm77_id[] = { @@ -384,7 +360,6 @@ static struct i2c_driver lm77_driver = { .name = "lm77", }, .probe = lm77_probe, - .remove = lm77_remove, .id_table = lm77_id, .detect = lm77_detect, .address_list = normal_i2c, |