From: Axel Lin Date: Wed, 16 Jul 2014 15:12:54 +0000 (+0800) Subject: hwmon: (adt7470) Convert to devm_hwmon_device_register_with_groups X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=3048577609ef09859505ff2aaf7194a924202193;p=linux-beck.git hwmon: (adt7470) 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/adt7470.c b/drivers/hwmon/adt7470.c index 7dfb1864c6e4..f5da39a68929 100644 --- a/drivers/hwmon/adt7470.c +++ b/drivers/hwmon/adt7470.c @@ -143,8 +143,7 @@ static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END }; #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) struct adt7470_data { - struct device *hwmon_dev; - struct attribute_group attrs; + struct i2c_client *client; struct mutex lock; char sensors_valid; char limits_valid; @@ -278,8 +277,8 @@ static int adt7470_update_thread(void *p) static struct adt7470_data *adt7470_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long local_jiffies = jiffies; u8 cfg; int i; @@ -409,8 +408,7 @@ static ssize_t set_auto_update_interval(struct device *dev, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); long temp; if (kstrtol(buf, 10, &temp)) @@ -438,8 +436,7 @@ static ssize_t set_num_temp_sensors(struct device *dev, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); long temp; if (kstrtol(buf, 10, &temp)) @@ -471,8 +468,8 @@ static ssize_t set_temp_min(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -505,8 +502,8 @@ static ssize_t set_temp_max(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -560,8 +557,8 @@ static ssize_t set_fan_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 adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp) || !temp) @@ -597,8 +594,8 @@ 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 adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp) || !temp) @@ -641,8 +638,8 @@ static ssize_t set_force_pwm_max(struct device *dev, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; u8 reg; @@ -674,8 +671,8 @@ static ssize_t set_pwm(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 adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -706,8 +703,8 @@ static ssize_t set_pwm_max(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -739,8 +736,8 @@ static ssize_t set_pwm_min(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -782,8 +779,8 @@ static ssize_t set_pwm_tmin(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long temp; if (kstrtol(buf, 10, &temp)) @@ -816,8 +813,8 @@ static ssize_t set_pwm_auto(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index); int pwm_auto_reg_mask; long temp; @@ -877,8 +874,8 @@ static ssize_t set_pwm_auto_temp(struct device *dev, size_t count) { struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); - struct i2c_client *client = to_i2c_client(dev); - struct adt7470_data *data = i2c_get_clientdata(client); + struct adt7470_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index); long temp; u8 reg; @@ -1095,7 +1092,7 @@ static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO, show_pwm_auto_temp, set_pwm_auto_temp, 3); -static struct attribute *adt7470_attr[] = { +static struct attribute *adt7470_attrs[] = { &dev_attr_alarm_mask.attr, &dev_attr_num_temp_sensors.attr, &dev_attr_auto_update_interval.attr, @@ -1187,6 +1184,8 @@ static struct attribute *adt7470_attr[] = { NULL }; +ATTRIBUTE_GROUPS(adt7470); + /* Return 0 if detection is successful, -ENODEV otherwise */ static int adt7470_detect(struct i2c_client *client, struct i2c_board_info *info) @@ -1229,11 +1228,11 @@ static void adt7470_init_client(struct i2c_client *client) static int adt7470_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct adt7470_data *data; - int err; + struct device *hwmon_dev; - data = devm_kzalloc(&client->dev, sizeof(struct adt7470_data), - GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct adt7470_data), GFP_KERNEL); if (!data) return -ENOMEM; @@ -1241,6 +1240,7 @@ static int adt7470_probe(struct i2c_client *client, data->auto_update_interval = AUTO_UPDATE_INTERVAL; i2c_set_clientdata(client, data); + data->client = client; mutex_init(&data->lock); dev_info(&client->dev, "%s chip found\n", client->name); @@ -1249,32 +1249,21 @@ static int adt7470_probe(struct i2c_client *client, adt7470_init_client(client); /* Register sysfs hooks */ - data->attrs.attrs = adt7470_attr; - err = sysfs_create_group(&client->dev.kobj, &data->attrs); - 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 exit_remove; - } + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + adt7470_groups); + + if (IS_ERR(hwmon_dev)) + return PTR_ERR(hwmon_dev); init_completion(&data->auto_update_stop); data->auto_update = kthread_run(adt7470_update_thread, client, "%s", - dev_name(data->hwmon_dev)); + dev_name(hwmon_dev)); if (IS_ERR(data->auto_update)) { - err = PTR_ERR(data->auto_update); - goto exit_unregister; + return PTR_ERR(data->auto_update); } return 0; - -exit_unregister: - hwmon_device_unregister(data->hwmon_dev); -exit_remove: - sysfs_remove_group(&client->dev.kobj, &data->attrs); - return err; } static int adt7470_remove(struct i2c_client *client) @@ -1283,8 +1272,6 @@ static int adt7470_remove(struct i2c_client *client) kthread_stop(data->auto_update); wait_for_completion(&data->auto_update_stop); - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &data->attrs); return 0; }