From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guenter Roeck Date: Sun, 16 Feb 2014 02:08:01 +0000 Subject: [lm-sensors] [PATCH 3/3] hwmon: (max1668) Convert to use devm_hwmon_device_register_with_groups Message-Id: <1392516481-16548-3-git-send-email-linux@roeck-us.net> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: lm-sensors@vger.kernel.org Simplify code, reduce code size, and attach hwmon attributes to hwmon device. Signed-off-by: Guenter Roeck --- drivers/hwmon/max1668.c | 67 +++++++++++++---------------------------------- 1 file changed, 18 insertions(+), 49 deletions(-) diff --git a/drivers/hwmon/max1668.c b/drivers/hwmon/max1668.c index bbbe340..e3ed0a5 100644 --- a/drivers/hwmon/max1668.c +++ b/drivers/hwmon/max1668.c @@ -66,7 +66,8 @@ MODULE_PARM_DESC(read_only, "Don't set any values, read only mode"); enum chips { max1668, max1805, max1989 }; struct max1668_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; enum chips type; struct mutex update_lock; @@ -82,8 +83,8 @@ struct max1668_data { static struct max1668_data *max1668_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct max1668_data *data = i2c_get_clientdata(client); + struct max1668_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; struct max1668_data *ret = data; s32 val; int i; @@ -205,8 +206,8 @@ static ssize_t set_temp_max(struct device *dev, const char *buf, size_t count) { int index = to_sensor_dev_attr(devattr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct max1668_data *data = i2c_get_clientdata(client); + struct max1668_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; int ret; @@ -231,8 +232,8 @@ static ssize_t set_temp_min(struct device *dev, const char *buf, size_t count) { int index = to_sensor_dev_attr(devattr)->index; - struct i2c_client *client = to_i2c_client(dev); - struct max1668_data *data = i2c_get_clientdata(client); + struct max1668_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; int ret; @@ -407,60 +408,29 @@ static int max1668_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct i2c_adapter *adapter = client->adapter; + struct device *dev = &client->dev; + struct device *hwmon_dev; struct max1668_data *data; - int err; if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) return -ENODEV; - data = devm_kzalloc(&client->dev, sizeof(struct max1668_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct max1668_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); + data->client = client; data->type = id->driver_data; mutex_init(&data->update_lock); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &max1668_group_common); - if (err) - return err; - - if (data->type = max1668 || data->type = max1989) { - err = sysfs_create_group(&client->dev.kobj, - &max1668_group_unique); - if (err) - goto error_sysrem0; - } - - data->hwmon_dev = hwmon_device_register(&client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto error_sysrem1; - } - - return 0; - -error_sysrem1: - if (data->type = max1668 || data->type = max1989) - sysfs_remove_group(&client->dev.kobj, &max1668_group_unique); -error_sysrem0: - sysfs_remove_group(&client->dev.kobj, &max1668_group_common); - return err; -} - -static int max1668_remove(struct i2c_client *client) -{ - struct max1668_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); + /* sysfs hooks */ + data->groups[0] = &max1668_group_common; if (data->type = max1668 || data->type = max1989) - sysfs_remove_group(&client->dev.kobj, &max1668_group_unique); + data->groups[1] = &max1668_group_unique; - sysfs_remove_group(&client->dev.kobj, &max1668_group_common); - - 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 max1668_id[] = { @@ -478,7 +448,6 @@ static struct i2c_driver max1668_driver = { .name = "max1668", }, .probe = max1668_probe, - .remove = max1668_remove, .id_table = max1668_id, .detect = max1668_detect, .address_list = max1668_addr_list, -- 1.7.9.7 _______________________________________________ lm-sensors mailing list lm-sensors@lm-sensors.org http://lists.lm-sensors.org/mailman/listinfo/lm-sensors