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Commit e47c39b3 authored by Axel Lin's avatar Axel Lin Committed by Guenter Roeck
Browse files

hwmon: (g760a) 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: default avatarAxel Lin <axel.lin@ingics.com>
Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
parent 15ac4ddb

drivers/hwmon/g760a.c

+13 −40
Original line number Diff line number Diff line
@@ -38,7 +38,6 @@ enum g760a_regs { 


struct g760a_data {

	struct i2c_client *client;

	struct device *hwmon_dev;

	struct mutex update_lock;



	/* board specific parameters */
@@ -86,8 +85,8 @@ static int g760a_write_value(struct i2c_client *client, enum g760a_regs reg, 


static struct g760a_data *g760a_update_client(struct device *dev)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct g760a_data *data = i2c_get_clientdata(client);

	struct g760a_data *data = dev_get_drvdata(dev);

	struct i2c_client *client = data->client;



	mutex_lock(&data->update_lock);
@@ -143,8 +142,8 @@ static ssize_t get_pwm(struct device *dev, struct device_attribute *da, 
static ssize_t set_pwm(struct device *dev, struct device_attribute *da,

		       const char *buf, size_t count)

{

	struct i2c_client *client = to_i2c_client(dev);

	struct g760a_data *data = g760a_update_client(dev);

	struct i2c_client *client = data->client;

	unsigned long val;



	if (kstrtoul(buf, 10, &val))
@@ -162,16 +161,14 @@ static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, get_pwm, set_pwm); 
static DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL);

static DEVICE_ATTR(fan1_alarm, S_IRUGO, show_fan_alarm, NULL);



static struct attribute *g760a_attributes[] = {

static struct attribute *g760a_attrs[] = {

	&dev_attr_pwm1.attr,

	&dev_attr_fan1_input.attr,

	&dev_attr_fan1_alarm.attr,

	NULL

};



static const struct attribute_group g760a_group = {

	.attrs = g760a_attributes,

};

ATTRIBUTE_GROUPS(g760a);



/*

 * new-style driver model code
@@ -180,20 +177,17 @@ static const struct attribute_group g760a_group = { 
static int g760a_probe(struct i2c_client *client,

			const struct i2c_device_id *id)

{

	struct device *dev = &client->dev;

	struct g760a_data *data;

	int err;

	struct device *hwmon_dev;



	if (!i2c_check_functionality(client->adapter,

				     I2C_FUNC_SMBUS_BYTE_DATA))

	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))

		return -EIO;



	data = devm_kzalloc(&client->dev, sizeof(struct g760a_data),

			    GFP_KERNEL);

	data = devm_kzalloc(dev, sizeof(struct g760a_data), GFP_KERNEL);

	if (!data)

		return -ENOMEM;



	i2c_set_clientdata(client, data);



	data->client = client;

	mutex_init(&data->update_lock);
@@ -201,30 +195,10 @@ static int g760a_probe(struct i2c_client *client, 
	data->fan_div = G760A_DEFAULT_FAN_DIV;

	data->clk = G760A_DEFAULT_CLK;



	/* Register sysfs hooks */

	err = sysfs_create_group(&client->dev.kobj, &g760a_group);

	if (err)

		return err;



	data->hwmon_dev = hwmon_device_register(&client->dev);

	if (IS_ERR(data->hwmon_dev)) {

		err = PTR_ERR(data->hwmon_dev);

		goto error_hwmon_device_register;

	}



	return 0;



error_hwmon_device_register:

	sysfs_remove_group(&client->dev.kobj, &g760a_group);

	return err;

}



static int g760a_remove(struct i2c_client *client)

{

	struct g760a_data *data = i2c_get_clientdata(client);

	hwmon_device_unregister(data->hwmon_dev);

	sysfs_remove_group(&client->dev.kobj, &g760a_group);

	return 0;

	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,

							   data,

							   g760a_groups);

	return PTR_ERR_OR_ZERO(hwmon_dev);

}



static const struct i2c_device_id g760a_id[] = {
@@ -238,7 +212,6 @@ static struct i2c_driver g760a_driver = { 
		.name	= "g760a",

	},

	.probe	  = g760a_probe,

	.remove	  = g760a_remove,

	.id_table = g760a_id,

};