From 6579d589eaa0f86a902504f76b4f973e2978d951 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Wed, 2 Jul 2014 20:36:50 +0800 Subject: [PATCH] hwmon: (lm93) 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/lm93.c | 154 +++++++++++++++++++------------------------ 1 file changed, 66 insertions(+), 88 deletions(-) diff --git a/drivers/hwmon/lm93.c b/drivers/hwmon/lm93.c index 6c2df576f253..90bb04858117 100644 --- a/drivers/hwmon/lm93.c +++ b/drivers/hwmon/lm93.c @@ -207,7 +207,7 @@ struct block1_t { * Client-specific data */ struct lm93_data { - struct device *hwmon_dev; + struct i2c_client *client; struct mutex update_lock; unsigned long last_updated; /* In jiffies */ @@ -919,8 +919,8 @@ static void lm93_read_block(struct i2c_client *client, u8 fbn, u8 *values) static struct lm93_data *lm93_update_device(struct device *dev) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; const unsigned long interval = HZ + (HZ / 2); mutex_lock(&data->update_lock); @@ -1158,8 +1158,8 @@ static ssize_t store_in_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int vccp = nr - 6; long vid; unsigned long val; @@ -1239,8 +1239,8 @@ static ssize_t store_in_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; int vccp = nr - 6; long vid; unsigned long val; @@ -1323,8 +1323,8 @@ static ssize_t store_temp_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1358,8 +1358,8 @@ static ssize_t store_temp_max(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1394,8 +1394,8 @@ static ssize_t store_temp_auto_base(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1430,8 +1430,8 @@ static ssize_t store_temp_auto_boost(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; long val; int err; @@ -1469,8 +1469,8 @@ static ssize_t store_temp_auto_boost_hyst(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1520,8 +1520,8 @@ static ssize_t store_temp_auto_offset(struct device *dev, struct sensor_device_attribute_2 *s_attr = to_sensor_dev_attr_2(attr); int nr = s_attr->index; int ofs = s_attr->nr; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1632,8 +1632,8 @@ static ssize_t store_temp_auto_pwm_min(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 reg, ctl4; unsigned long val; int err; @@ -1680,8 +1680,8 @@ static ssize_t store_temp_auto_offset_hyst(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 reg; unsigned long val; int err; @@ -1741,8 +1741,8 @@ static ssize_t store_fan_min(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1824,8 +1824,8 @@ static ssize_t store_fan_smart_tach(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -1880,8 +1880,8 @@ static ssize_t store_pwm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl2, ctl4; unsigned long val; int err; @@ -1928,8 +1928,8 @@ static ssize_t store_pwm_enable(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl2; unsigned long val; int err; @@ -2006,8 +2006,8 @@ static ssize_t store_pwm_freq(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl4; unsigned long val; int err; @@ -2046,8 +2046,8 @@ static ssize_t store_pwm_auto_channels(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2087,8 +2087,8 @@ static ssize_t store_pwm_auto_spinup_min(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl3, ctl4; unsigned long val; int err; @@ -2130,8 +2130,8 @@ static ssize_t store_pwm_auto_spinup_time(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ctl3; unsigned long val; int err; @@ -2168,8 +2168,8 @@ static ssize_t store_pwm_auto_prochot_ramp(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ramp; unsigned long val; int err; @@ -2202,8 +2202,8 @@ static ssize_t store_pwm_auto_vrdhot_ramp(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 ramp; unsigned long val; int err; @@ -2270,8 +2270,8 @@ static ssize_t store_prochot_max(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2308,8 +2308,8 @@ static ssize_t store_prochot_override(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2351,8 +2351,8 @@ static ssize_t store_prochot_interval(struct device *dev, const char *buf, size_t count) { int nr = (to_sensor_dev_attr(attr))->index; - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; u8 tmp; unsigned long val; int err; @@ -2390,8 +2390,8 @@ static ssize_t store_prochot_override_duty_cycle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2423,8 +2423,8 @@ static ssize_t store_prochot_short(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - struct i2c_client *client = to_i2c_client(dev); - struct lm93_data *data = i2c_get_clientdata(client); + struct lm93_data *data = dev_get_drvdata(dev); + struct i2c_client *client = data->client; unsigned long val; int err; @@ -2631,9 +2631,7 @@ static struct attribute *lm93_attrs[] = { NULL }; -static struct attribute_group lm93_attr_grp = { - .attrs = lm93_attrs, -}; +ATTRIBUTE_GROUPS(lm93); static void lm93_init_client(struct i2c_client *client) { @@ -2726,61 +2724,42 @@ static int lm93_detect(struct i2c_client *client, struct i2c_board_info *info) static int lm93_probe(struct i2c_client *client, const struct i2c_device_id *id) { + struct device *dev = &client->dev; struct lm93_data *data; - int err, func; + struct device *hwmon_dev; + int func; void (*update)(struct lm93_data *, struct i2c_client *); /* choose update routine based on bus capabilities */ func = i2c_get_functionality(client->adapter); if (((LM93_SMBUS_FUNC_FULL & func) == LM93_SMBUS_FUNC_FULL) && (!disable_block)) { - dev_dbg(&client->dev, "using SMBus block data transactions\n"); + dev_dbg(dev, "using SMBus block data transactions\n"); update = lm93_update_client_full; } else if ((LM93_SMBUS_FUNC_MIN & func) == LM93_SMBUS_FUNC_MIN) { - dev_dbg(&client->dev, - "disabled SMBus block data transactions\n"); + dev_dbg(dev, "disabled SMBus block data transactions\n"); update = lm93_update_client_min; } else { - dev_dbg(&client->dev, - "detect failed, smbus byte and/or word data not supported!\n"); + dev_dbg(dev, "detect failed, smbus byte and/or word data not supported!\n"); return -ENODEV; } - data = devm_kzalloc(&client->dev, sizeof(struct lm93_data), GFP_KERNEL); + data = devm_kzalloc(dev, sizeof(struct lm93_data), GFP_KERNEL); if (!data) return -ENOMEM; - i2c_set_clientdata(client, data); /* housekeeping */ + data->client = client; data->update = update; mutex_init(&data->update_lock); /* initialize the chip */ lm93_init_client(client); - err = sysfs_create_group(&client->dev.kobj, &lm93_attr_grp); - if (err) - return err; - - /* Register hwmon driver class */ - data->hwmon_dev = hwmon_device_register(&client->dev); - if (!IS_ERR(data->hwmon_dev)) - return 0; - - err = PTR_ERR(data->hwmon_dev); - dev_err(&client->dev, "error registering hwmon device.\n"); - sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp); - return err; -} - -static int lm93_remove(struct i2c_client *client) -{ - struct lm93_data *data = i2c_get_clientdata(client); - - hwmon_device_unregister(data->hwmon_dev); - sysfs_remove_group(&client->dev.kobj, &lm93_attr_grp); - - return 0; + hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, + data, + lm93_groups); + return PTR_ERR_OR_ZERO(hwmon_dev); } static const struct i2c_device_id lm93_id[] = { @@ -2796,7 +2775,6 @@ static struct i2c_driver lm93_driver = { .name = "lm93", }, .probe = lm93_probe, - .remove = lm93_remove, .id_table = lm93_id, .detect = lm93_detect, .address_list = normal_i2c, -- 2.20.1