diff options
author | Axel Lin <axel.lin@ingics.com> | 2014-06-04 23:47:12 (GMT) |
---|---|---|
committer | Guenter Roeck <linux@roeck-us.net> | 2014-06-12 15:36:47 (GMT) |
commit | 31e3879127d4db56ad445fd948ca39c393ee65d7 (patch) | |
tree | 1441bcc12e1093246c060ae9fe05c66b6fe88c7b /drivers/hwmon/ltc4151.c | |
parent | 590e8534447ce9f2f5e5e64681764079530ee8c7 (diff) | |
download | linux-31e3879127d4db56ad445fd948ca39c393ee65d7.tar.xz |
hwmon: (ltc4151) Convert to devm_hwmon_device_register_with_groups
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>
Tested-by: Per Dalén <per.dalen@appeartv.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/ltc4151.c')
-rw-r--r-- | drivers/hwmon/ltc4151.c | 51 |
1 files changed, 13 insertions, 38 deletions
diff --git a/drivers/hwmon/ltc4151.c b/drivers/hwmon/ltc4151.c index af81be1..c86a184 100644 --- a/drivers/hwmon/ltc4151.c +++ b/drivers/hwmon/ltc4151.c @@ -47,7 +47,7 @@ #define LTC4151_ADIN_L 0x05 struct ltc4151_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; bool valid; @@ -59,8 +59,8 @@ struct ltc4151_data { static struct ltc4151_data *ltc4151_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct ltc4151_data *data = i2c_get_clientdata(client); + struct ltc4151_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; struct ltc4151_data *ret = data; mutex_lock(&data->update_lock); @@ -159,7 +159,7 @@ static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4151_show_value, NULL, * Finally, construct an array of pointers to members of the above objects, * as required for sysfs_create_group() */ -static struct attribute *ltc4151_attributes[] = { +static struct attribute *ltc4151_attrs[] = { &sensor_dev_attr_in1_input.dev_attr.attr, &sensor_dev_attr_in2_input.dev_attr.attr, @@ -167,54 +167,30 @@ static struct attribute *ltc4151_attributes[] = { NULL, }; - -static const struct attribute_group ltc4151_group = { - .attrs = ltc4151_attributes, -}; +ATTRIBUTE_GROUPS(ltc4151); static int ltc4151_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct i2c_adapter *adapter = client->adapter; + struct device *dev = &client->dev; struct ltc4151_data *data; - int ret; + struct device *hwmon_dev; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; - data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->update_lock); - /* Register sysfs hooks */ - ret = sysfs_create_group(&client->dev.kobj, <c4151_group); - if (ret) - return ret; - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - ret = PTR_ERR(data->hwmon_dev); - goto out_hwmon_device_register; - } - - return 0; - -out_hwmon_device_register: - sysfs_remove_group(&client->dev.kobj, <c4151_group); - return ret; -} - -static int ltc4151_remove(struct i2c_client *client) -{ - struct ltc4151_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, <c4151_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + ltc4151_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id ltc4151_id[] = { @@ -229,7 +205,6 @@ static struct i2c_driver ltc4151_driver = { .name = "ltc4151", }, .probe = ltc4151_probe, - .remove = ltc4151_remove, .id_table = ltc4151_id, }; |