From 715f69bef14e4139ff1e19bbc69e0cd07de0f4e9 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 3 Jul 2014 22:01:48 +0800 Subject: [PATCH] hwmon: (adm9240) 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 --- drivers/hwmon/adm9240.c | 74 +++++++++++++++-------------------------- 1 file changed, 26 insertions(+), 48 deletions(-) diff --git a/drivers/hwmon/adm9240.c b/drivers/hwmon/adm9240.c index 8235ae4cbeb5..98114cef1e43 100644 --- a/drivers/hwmon/adm9240.c +++ b/drivers/hwmon/adm9240.c @@ -132,7 +132,7 @@ static inline unsigned int AOUT_FROM_REG(u8 reg) /* per client data */ struct adm9240_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; char valid; unsigned long last_updated_measure; @@ -170,8 +170,8 @@ static void adm9240_write_fan_div(struct i2c_client *client, int nr, static struct adm9240_data *adm9240_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int i; mutex_lock(&data->update_lock); @@ -278,8 +278,8 @@ static ssize_t set_max(struct device *dev, struct device_attribute *devattr, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -334,8 +334,8 @@ static ssize_t set_in_min(struct device *dev, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -356,8 +356,8 @@ static ssize_t set_in_max(struct device *dev, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -431,8 +431,8 @@ static ssize_t set_fan_min(struct device *dev, const char *buf, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int nr = attr->index; u8 new_div; unsigned long val; @@ -544,8 +544,8 @@ static ssize_t set_aout(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -565,8 +565,8 @@ static ssize_t chassis_clear(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adm9240_data *data = i2c_get_clientdata(client); + struct adm9240_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; if (kstrtoul(buf, 10, &val) || val != 0) @@ -583,7 +583,7 @@ static ssize_t chassis_clear(struct device *dev, static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR, show_alarm, chassis_clear, 12); -static struct attribute *adm9240_attributes[] = { +static struct attribute *adm9240_attrs[] = { &sensor_dev_attr_in0_input.dev_attr.attr, &sensor_dev_attr_in0_min.dev_attr.attr, &sensor_dev_attr_in0_max.dev_attr.attr, @@ -627,9 +627,7 @@ static struct attribute *adm9240_attributes[] = { NULL }; -static const struct attribute_group adm9240_group = { - .attrs = adm9240_attributes, -}; +ATTRIBUTE_GROUPS(adm9240); /*** sensor chip detect and driver install ***/ @@ -724,44 +722,25 @@ static void adm9240_init_client(struct i2c_client *client) static int adm9240_probe(struct i2c_client *new_client, const struct i2c_device_id *id) { + struct device *dev = &new_client->dev; + struct device *hwmon_dev; struct adm9240_data *data; - int err; - data = devm_kzalloc(&new_client->dev, sizeof(*data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); if (!data) return -ENOMEM; i2c_set_clientdata(new_client, data); + data->client = new_client; mutex_init(&data->update_lock); adm9240_init_client(new_client); - /* populate sysfs filesystem */ - err = sysfs_create_group(&new_client->dev.kobj, &adm9240_group); - if (err) - return err; - - data->hwmon_dev = hwmon_device_register(&new_client->dev); - if (IS_ERR(data->hwmon_dev)) { - err = PTR_ERR(data->hwmon_dev); - goto exit_remove; - } - - return 0; - -exit_remove: - sysfs_remove_group(&new_client->dev.kobj, &adm9240_group); - return err; -} - -static int adm9240_remove(struct i2c_client *client) -{ - struct adm9240_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &adm9240_group); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, + new_client->name, + data, + adm9240_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id adm9240_id[] = { @@ -778,7 +757,6 @@ static struct i2c_driver adm9240_driver = { .name = "adm9240", }, .probe = adm9240_probe, - .remove = adm9240_remove, .id_table = adm9240_id, .detect = adm9240_detect, .address_list = normal_i2c, -- 2.20.1