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Commit 166f7296 authored by Axel Lin's avatar Axel Lin Committed by Guenter Roeck
Browse files

hwmon: (smsc47m192) Convert to devm_hwmon_device_register_with_groups 



Use devm_hwmon_device_register_with_groups() to simplify the code a bit.

Signed-off-by: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 94314e25

drivers/hwmon/smsc47m192.c

+25 −52
Original line number Diff line number Diff line
@@ -95,7 +95,8 @@ static inline int TEMP_FROM_REG(s8 val) 
}



struct smsc47m192_data {

	struct device *hwmon_dev;

	struct i2c_client *client;

	const struct attribute_group *groups[3];

	struct mutex update_lock;

	char valid;		/* !=0 if following fields are valid */

	unsigned long last_updated;	/* In jiffies */
@@ -114,8 +115,8 @@ struct smsc47m192_data { 


static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct smsc47m192_data *data = i2c_get_clientdata(client);

	struct smsc47m192_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	int i, config;



	mutex_lock(&data->update_lock);
@@ -209,8 +210,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, 
{

	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

	int nr = sensor_attr->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct smsc47m192_data *data = i2c_get_clientdata(client);

	struct smsc47m192_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	unsigned long val;

	int err;
@@ -231,8 +232,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, 
{

	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

	int nr = sensor_attr->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct smsc47m192_data *data = i2c_get_clientdata(client);

	struct smsc47m192_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	unsigned long val;

	int err;
@@ -298,8 +299,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, 
{

	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

	int nr = sensor_attr->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct smsc47m192_data *data = i2c_get_clientdata(client);

	struct smsc47m192_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	long val;

	int err;
@@ -320,8 +321,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, 
{

	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

	int nr = sensor_attr->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct smsc47m192_data *data = i2c_get_clientdata(client);

	struct smsc47m192_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	long val;

	int err;
@@ -351,8 +352,8 @@ static ssize_t set_temp_offset(struct device *dev, struct device_attribute 
{

	struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);

	int nr = sensor_attr->index;

	struct i2c_client *client = to_i2c_client(dev);

	struct smsc47m192_data *data = i2c_get_clientdata(client);

	struct smsc47m192_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);

	long val;

	int err;
@@ -591,59 +592,32 @@ static int smsc47m192_detect(struct i2c_client *client, 
static int smsc47m192_probe(struct i2c_client *client,

			    const struct i2c_device_id *id)

{

	struct device *dev = &client->dev;

	struct device *hwmon_dev;

	struct smsc47m192_data *data;

	int config;

	int err;



	data = devm_kzalloc(&client->dev, sizeof(struct smsc47m192_data),

			    GFP_KERNEL);

	data = devm_kzalloc(dev, sizeof(struct smsc47m192_data), GFP_KERNEL);

	if (!data)

		return -ENOMEM;



	i2c_set_clientdata(client, data);

	data->client = client;

	data->vrm = vid_which_vrm();

	mutex_init(&data->update_lock);



	/* Initialize the SMSC47M192 chip */

	smsc47m192_init_client(client);



	/* Register sysfs hooks */

	err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group);

	if (err)

		return err;



	/* sysfs hooks */

	data->groups[0] = &smsc47m192_group;

	/* Pin 110 is either in4 (+12V) or VID4 */

	config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);

	if (!(config & 0x20)) {

		err = sysfs_create_group(&client->dev.kobj,

					 &smsc47m192_group_in4);

		if (err)

			goto exit_remove_files;

	}



	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, &smsc47m192_group);

	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);

	return err;

}



static int smsc47m192_remove(struct i2c_client *client)

{

	struct smsc47m192_data *data = i2c_get_clientdata(client);



	hwmon_device_unregister(data->hwmon_dev);

	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);

	sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);

	if (!(config & 0x20))

		data->groups[1] = &smsc47m192_group_in4;



	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 smsc47m192_id[] = {
@@ -658,7 +632,6 @@ static struct i2c_driver smsc47m192_driver = { 
		.name	= "smsc47m192",

	},

	.probe		= smsc47m192_probe,

	.remove		= smsc47m192_remove,

	.id_table	= smsc47m192_id,

	.detect		= smsc47m192_detect,

	.address_list	= normal_i2c,