Commit 1de8b250 authored by Guenter Roeck's avatar Guenter Roeck Committed by Jean Delvare
Browse files

hwmon: (lm90) Convert to use hwmon_device_register_with_groups 



Simplify code, reduce code size, and attach hwmon attributes to hwmon device.

Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarJean Delvare <jdelvare@suse.de>
parent 084489e6

drivers/hwmon/lm90.c

+17 −22
Original line number Diff line number Diff line
@@ -365,6 +365,7 @@ enum lm90_temp11_reg_index { 
 */



struct lm90_data {

	struct i2c_client *client;

	struct device *hwmon_dev;

	const struct attribute_group *groups[6];

	struct mutex update_lock;
@@ -514,8 +515,8 @@ static void lm90_set_convrate(struct i2c_client *client, struct lm90_data *data, 


static struct lm90_data *lm90_update_device(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct lm90_data *data = i2c_get_clientdata(client);

	struct lm90_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	unsigned long next_update;



	mutex_lock(&data->update_lock);
@@ -794,8 +795,8 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr, 
	};



	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);

	struct i2c_client *client = to_i2c_client(dev);

	struct lm90_data *data = i2c_get_clientdata(client);

	struct lm90_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	int nr = attr->index;

	long val;

	int err;
@@ -861,8 +862,8 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr, 
	};



	struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);

	struct i2c_client *client = to_i2c_client(dev);

	struct lm90_data *data = i2c_get_clientdata(client);

	struct lm90_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	int nr = attr->nr;

	int index = attr->index;

	long val;
@@ -923,8 +924,8 @@ static ssize_t show_temphyst(struct device *dev, 
static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy,

			    const char *buf, size_t count)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct lm90_data *data = i2c_get_clientdata(client);

	struct lm90_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	long val;

	int err;

	int temp;
@@ -977,8 +978,8 @@ static ssize_t set_update_interval(struct device *dev, 
				   struct device_attribute *attr,

				   const char *buf, size_t count)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct lm90_data *data = i2c_get_clientdata(client);

	struct lm90_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;

	unsigned long val;

	int err;
@@ -1412,10 +1413,9 @@ static void lm90_restore_conf(struct i2c_client *client, struct lm90_data *data) 
				  data->config_orig);

}



static void lm90_init_client(struct i2c_client *client)

static void lm90_init_client(struct i2c_client *client, struct lm90_data *data)

{

	u8 config, convrate;

	struct lm90_data *data = i2c_get_clientdata(client);



	if (lm90_read_reg(client, LM90_REG_R_CONVRATE, &convrate) < 0) {

		dev_warn(&client->dev, "Failed to read convrate register!\n");
@@ -1530,6 +1530,7 @@ static int lm90_probe(struct i2c_client *client, 
	if (!data)

		return -ENOMEM;



	data->client = client;

	i2c_set_clientdata(client, data);

	mutex_init(&data->update_lock);
@@ -1556,7 +1557,7 @@ static int lm90_probe(struct i2c_client *client, 
	data->max_convrate = lm90_params[data->kind].max_convrate;



	/* Initialize the LM90 chip */

	lm90_init_client(client);

	lm90_init_client(client, data);



	/* Register sysfs hooks */

	data->groups[groups++] = &lm90_group;
@@ -1579,14 +1580,11 @@ static int lm90_probe(struct i2c_client *client, 
			goto exit_restore;

	}



	err = sysfs_create_groups(&dev->kobj, data->groups);

	if (err)

		goto exit_remove_pec;



	data->hwmon_dev = hwmon_device_register(dev);

	data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name,

							    data, data->groups);

	if (IS_ERR(data->hwmon_dev)) {

		err = PTR_ERR(data->hwmon_dev);

		goto exit_remove_files;

		goto exit_remove_pec;

	}



	if (client->irq) {
@@ -1605,8 +1603,6 @@ static int lm90_probe(struct i2c_client *client, 


exit_unregister:

	hwmon_device_unregister(data->hwmon_dev);

exit_remove_files:

	sysfs_remove_groups(&dev->kobj, data->groups);

exit_remove_pec:

	device_remove_file(dev, &dev_attr_pec);

exit_restore:
@@ -1621,7 +1617,6 @@ static int lm90_remove(struct i2c_client *client) 
	struct lm90_data *data = i2c_get_clientdata(client);



	hwmon_device_unregister(data->hwmon_dev);

	sysfs_remove_groups(&client->dev.kobj, data->groups);

	device_remove_file(&client->dev, &dev_attr_pec);

	lm90_restore_conf(client, data);

	regulator_disable(data->regulator);