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hwmon: (max6639) Convert to use devm_hwmon_device_register_with_groups
Simplify code, reduce code size, and attach sysfs attricutes to hwmon device. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Jean Delvare <jdelvare@suse.de>
This commit is contained in:
Guenter Roeck
parent
c1ea0a0431
commit
7981c5846a
@ -80,7 +80,7 @@ static const int rpm_ranges[] = { 2000, 4000, 8000, 16000 };
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* Client data (each client gets its own)
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*/
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struct max6639_data {
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struct device *hwmon_dev;
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struct i2c_client *client;
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struct mutex update_lock;
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char valid; /* !=0 if following fields are valid */
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unsigned long last_updated; /* In jiffies */
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@ -104,8 +104,8 @@ struct max6639_data {
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static struct max6639_data *max6639_update_device(struct device *dev)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct max6639_data *data = i2c_get_clientdata(client);
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struct max6639_data *data = dev_get_drvdata(dev);
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struct i2c_client *client = data->client;
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struct max6639_data *ret = data;
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int i;
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int status_reg;
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@ -191,9 +191,8 @@ static ssize_t show_temp_fault(struct device *dev,
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static ssize_t show_temp_max(struct device *dev,
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struct device_attribute *dev_attr, char *buf)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct max6639_data *data = i2c_get_clientdata(client);
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struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
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struct max6639_data *data = dev_get_drvdata(dev);
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return sprintf(buf, "%d\n", (data->temp_therm[attr->index] * 1000));
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}
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@ -202,9 +201,9 @@ static ssize_t set_temp_max(struct device *dev,
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struct device_attribute *dev_attr,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct max6639_data *data = i2c_get_clientdata(client);
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struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
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struct max6639_data *data = dev_get_drvdata(dev);
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struct i2c_client *client = data->client;
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unsigned long val;
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int res;
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@ -224,9 +223,8 @@ static ssize_t set_temp_max(struct device *dev,
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static ssize_t show_temp_crit(struct device *dev,
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struct device_attribute *dev_attr, char *buf)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct max6639_data *data = i2c_get_clientdata(client);
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struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
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struct max6639_data *data = dev_get_drvdata(dev);
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return sprintf(buf, "%d\n", (data->temp_alert[attr->index] * 1000));
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}
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@ -235,9 +233,9 @@ static ssize_t set_temp_crit(struct device *dev,
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struct device_attribute *dev_attr,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct max6639_data *data = i2c_get_clientdata(client);
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struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
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struct max6639_data *data = dev_get_drvdata(dev);
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struct i2c_client *client = data->client;
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unsigned long val;
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int res;
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@ -258,9 +256,8 @@ static ssize_t show_temp_emergency(struct device *dev,
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struct device_attribute *dev_attr,
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char *buf)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct max6639_data *data = i2c_get_clientdata(client);
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struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
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struct max6639_data *data = dev_get_drvdata(dev);
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return sprintf(buf, "%d\n", (data->temp_ot[attr->index] * 1000));
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}
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@ -269,9 +266,9 @@ static ssize_t set_temp_emergency(struct device *dev,
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struct device_attribute *dev_attr,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct max6639_data *data = i2c_get_clientdata(client);
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struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
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struct max6639_data *data = dev_get_drvdata(dev);
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struct i2c_client *client = data->client;
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unsigned long val;
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int res;
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@ -291,9 +288,8 @@ static ssize_t set_temp_emergency(struct device *dev,
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static ssize_t show_pwm(struct device *dev,
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struct device_attribute *dev_attr, char *buf)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct max6639_data *data = i2c_get_clientdata(client);
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struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
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struct max6639_data *data = dev_get_drvdata(dev);
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return sprintf(buf, "%d\n", data->pwm[attr->index] * 255 / 120);
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}
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@ -302,9 +298,9 @@ static ssize_t set_pwm(struct device *dev,
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struct device_attribute *dev_attr,
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const char *buf, size_t count)
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{
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struct i2c_client *client = to_i2c_client(dev);
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struct max6639_data *data = i2c_get_clientdata(client);
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struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
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struct max6639_data *data = dev_get_drvdata(dev);
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struct i2c_client *client = data->client;
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unsigned long val;
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int res;
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@ -378,7 +374,7 @@ static SENSOR_DEVICE_ATTR(temp1_emergency_alarm, S_IRUGO, show_alarm, NULL, 5);
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static SENSOR_DEVICE_ATTR(temp2_emergency_alarm, S_IRUGO, show_alarm, NULL, 4);
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static struct attribute *max6639_attributes[] = {
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static struct attribute *max6639_attrs[] = {
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&sensor_dev_attr_temp1_input.dev_attr.attr,
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&sensor_dev_attr_temp2_input.dev_attr.attr,
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&sensor_dev_attr_temp1_fault.dev_attr.attr,
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@ -403,10 +399,7 @@ static struct attribute *max6639_attributes[] = {
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&sensor_dev_attr_temp2_emergency_alarm.dev_attr.attr,
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NULL
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};
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static const struct attribute_group max6639_group = {
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.attrs = max6639_attributes,
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};
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ATTRIBUTE_GROUPS(max6639);
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/*
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* returns respective index in rpm_ranges table
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@ -424,9 +417,9 @@ static int rpm_range_to_reg(int range)
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return 1; /* default: 4000 RPM */
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}
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static int max6639_init_client(struct i2c_client *client)
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static int max6639_init_client(struct i2c_client *client,
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struct max6639_data *data)
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{
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struct max6639_data *data = i2c_get_clientdata(client);
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struct max6639_platform_data *max6639_info =
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dev_get_platdata(&client->dev);
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int i;
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@ -547,46 +540,25 @@ static int max6639_probe(struct i2c_client *client,
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{
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struct device *dev = &client->dev;
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struct max6639_data *data;
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struct device *hwmon_dev;
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int err;
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data = devm_kzalloc(dev, sizeof(struct max6639_data), GFP_KERNEL);
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if (!data)
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return -ENOMEM;
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i2c_set_clientdata(client, data);
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data->client = client;
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mutex_init(&data->update_lock);
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/* Initialize the max6639 chip */
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err = max6639_init_client(client);
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err = max6639_init_client(client, data);
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if (err < 0)
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return err;
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/* Register sysfs hooks */
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err = sysfs_create_group(&dev->kobj, &max6639_group);
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if (err)
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return err;
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data->hwmon_dev = hwmon_device_register(dev);
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if (IS_ERR(data->hwmon_dev)) {
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err = PTR_ERR(data->hwmon_dev);
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goto error_remove;
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}
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return 0;
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error_remove:
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sysfs_remove_group(&dev->kobj, &max6639_group);
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return err;
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}
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static int max6639_remove(struct i2c_client *client)
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{
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struct max6639_data *data = i2c_get_clientdata(client);
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hwmon_device_unregister(data->hwmon_dev);
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sysfs_remove_group(&client->dev.kobj, &max6639_group);
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return 0;
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hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
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data,
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max6639_groups);
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return PTR_ERR_OR_ZERO(hwmon_dev);
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}
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#ifdef CONFIG_PM_SLEEP
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@ -631,7 +603,6 @@ static struct i2c_driver max6639_driver = {
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.pm = &max6639_pm_ops,
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},
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.probe = max6639_probe,
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.remove = max6639_remove,
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.id_table = max6639_id,
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.detect = max6639_detect,
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.address_list = normal_i2c,
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