From: Axel Lin Date: Thu, 3 Jul 2014 01:50:13 +0000 (+0800) Subject: hwmon: (gl520sm) Convert to devm_hwmon_device_register_with_groups X-Git-Tag: v4.14-rc1~7102^2~50 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=d1b9c3f50304376f365e305ff61c3ae9a358e2f9;p=platform%2Fkernel%2Flinux-rpi.git hwmon: (gl520sm) 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: Axel Lin Signed-off-by: Guenter Roeck --- diff --git a/drivers/hwmon/gl520sm.c b/drivers/hwmon/gl520sm.c index 86c08a1..dee93ec 100644 --- a/drivers/hwmon/gl520sm.c +++ b/drivers/hwmon/gl520sm.c @@ -75,7 +75,8 @@ static const u8 GL520_REG_TEMP_MAX_HYST[] = { 0x06, 0x18 }; /* Client data */ struct gl520_data { - struct device *hwmon_dev; + struct i2c_client *client; + const struct attribute_group *groups[3]; struct mutex update_lock; char valid; /* zero until the following fields are valid */ unsigned long last_updated; /* in jiffies */ @@ -121,8 +122,8 @@ static int gl520_write_value(struct i2c_client *client, u8 reg, u16 value) static struct gl520_data *gl520_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int val, i; mutex_lock(&data->update_lock); @@ -255,8 +256,8 @@ static ssize_t get_in_max(struct device *dev, struct device_attribute *attr, static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; u8 r; long v; @@ -289,8 +290,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; u8 r; long v; @@ -390,8 +391,8 @@ static ssize_t get_fan_off(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; u8 r; unsigned long v; @@ -429,8 +430,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; u8 r; unsigned long v; @@ -478,8 +479,8 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, static ssize_t set_fan_off(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 r; unsigned long v; int err; @@ -546,8 +547,8 @@ static ssize_t get_temp_max_hyst(struct device *dev, static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; long v; int err; @@ -566,8 +567,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, static ssize_t set_temp_max_hyst(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int n = to_sensor_dev_attr(attr)->index; long v; int err; @@ -619,8 +620,8 @@ static ssize_t get_beep_mask(struct device *dev, struct device_attribute *attr, static ssize_t set_beep_enable(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 r; unsigned long v; int err; @@ -643,8 +644,8 @@ static ssize_t set_beep_enable(struct device *dev, struct device_attribute static ssize_t set_beep_mask(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long r; int err; @@ -697,8 +698,8 @@ static ssize_t get_beep(struct device *dev, struct device_attribute *attr, static ssize_t set_beep(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct gl520_data *data = i2c_get_clientdata(client); + struct gl520_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int bitnr = to_sensor_dev_attr(attr)->index; unsigned long bit; @@ -877,58 +878,32 @@ static void gl520_init_client(struct i2c_client *client) static int gl520_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; + struct device *hwmon_dev; struct gl520_data *data; - int err; - data = devm_kzalloc(&client->dev, sizeof(struct gl520_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct gl520_data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(client, data); mutex_init(&data->update_lock); + data->client = client; /* Initialize the GL520SM chip */ gl520_init_client(client); - /* Register sysfs hooks */ - err = sysfs_create_group(&client->dev.kobj, &gl520_group); - if (err) - return err; + /* sysfs hooks */ + data->groups[0] = &gl520_group; if (data->two_temps) - err = sysfs_create_group(&client->dev.kobj, &gl520_group_temp2); + data->groups[1] = &gl520_group_temp2; else - err = sysfs_create_group(&client->dev.kobj, &gl520_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; + data->groups[1] = &gl520_group_in4; -exit_remove_files: - sysfs_remove_group(&client->dev.kobj, &gl520_group); - sysfs_remove_group(&client->dev.kobj, &gl520_group_in4); - sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2); - return err; -} - -static int gl520_remove(struct i2c_client *client) -{ - struct gl520_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &gl520_group); - sysfs_remove_group(&client->dev.kobj, &gl520_group_in4); - sysfs_remove_group(&client->dev.kobj, &gl520_group_temp2); - - 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 gl520_id[] = { @@ -943,7 +918,6 @@ static struct i2c_driver gl520_driver = { .name = "gl520sm", }, .probe = gl520_probe, - .remove = gl520_remove, .id_table = gl520_id, .detect = gl520_detect, .address_list = normal_i2c,