Merge tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging

Pull hwmon updates from Guenter Roeck:
 "Notable changes:

   - Heiko Schocher provided a driver for TI TMP103.
   - Kamil Debski provided a driver for pwm-controlled fans.
   - Neelesh Gupta provided a driver for power, fan rpm, voltage and
     temperature reporting on powerpc/powernv systems.
   - Scott Kanowitz provided a driver supporting Lattice's POWR1220
     power manager IC.
   - Richard Zhu provided a pmbus front-end driver for TPS40422.
   - Frans Klaver added support for TMP112 to the lm75 driver.
   - Johannes Pointner added support for EPCOS B57330V2103 to the
     ntc_thermistor driver.
   - Guenter Roeck added support for TMP441 and TMP442 to the tmp421
     driver.
   - Axel Lin converted several drivers to the new hwmon API (36 of
     them, if I counted correctly), and cleaned up many of the drivers
     along the way.

  There are also a number of patches fixing bugs discovered while
  testing Axel's changes"

* tag 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging: (88 commits)
  hwmon: (g762) Use of_property_read_u32 at appropriate place
  hwmon: (sis5595) Prevent overflow problem when writing large limits
  hwmon: (gpio-fan) Prevent overflow problem when writing large limits
  hwmon: (ibmpowernv) Use of_property_read_u32 at appropriate place
  hwmon: (lm85) Convert to devm_hwmon_device_register_with_groups
  hwmon: (lm85) Avoid forward declaration
  hwmon: (lm78) Convert to devm_hwmon_device_register_with_groups
  hwmon: (max6697) Use of_property_read_bool at appropriate places
  hwmon: (pwm-fan) Make SENSORS_PWM_FAN depend on OF
  hwmon: (pwm-fan) Remove duplicate dev_set_drvdata call
  hwmon: (nct6775) Remove num_attr_groups from struct nct6775_data
  hwmon: (nct6775) Update module description and Kconfig for NCT6106D and NCT6791D
  hwmon: (adt7411) Convert to devm_hwmon_device_register_with_groups
  hwmon: (g762) Convert to hwmon_device_register_with_groups
  hwmon: (emc2103) Convert to devm_hwmon_device_register_with_groups
  hwmon: (smsc47m1) Avoid forward declaration
  hwmon: (smsc47m192) Convert to devm_hwmon_device_register_with_groups
  hwmon: (smsc47m192) Avoid forward declaration
  hwmon: (max1668) Make max1668_addr_list array const
  hwmon: (max6639) Make normal_i2c array const
  ...

1 files changed, 17 insertions, 43 deletions

diff --git a/drivers/hwmon/ds620.c b/drivers/hwmon/ds620.c
index 0918b9136588..edf550fc4eef 100644
--- a/drivers/hwmon/ds620.c
+++ b/drivers/hwmon/ds620.c
@@ -67,7 +67,7 @@ static const u8 DS620_REG_TEMP[3] = {
 
 /* Each client has this additional data */
 struct ds620_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	char valid;		/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
@@ -106,8 +106,8 @@ static void ds620_init_client(struct i2c_client *client)
 
 static struct ds620_data *ds620_update_client(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds620_data *data = i2c_get_clientdata(client);
+	struct ds620_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct ds620_data *ret = data;
 
 	mutex_lock(&data->update_lock);
@@ -158,8 +158,8 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
 	long val;
 
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds620_data *data = i2c_get_clientdata(client);
+	struct ds620_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	res = kstrtol(buf, 10, &val);
 
@@ -181,13 +181,15 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *da,
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
 	struct ds620_data *data = ds620_update_client(dev);
-	struct i2c_client *client = to_i2c_client(dev);
+	struct i2c_client *client;
 	u16 conf, new_conf;
 	int res;
 
 	if (IS_ERR(data))
 		return PTR_ERR(data);
 
+	client = data->client;
+
 	/* reset alarms if necessary */
 	res = i2c_smbus_read_word_swapped(client, DS620_REG_CONF);
 	if (res < 0)
@@ -213,7 +215,7 @@ static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO, show_alarm, NULL,
 static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL,
 			  DS620_REG_CONFIG_THF);
 
-static struct attribute *ds620_attributes[] = {
+static struct attribute *ds620_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_min.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
@@ -222,55 +224,28 @@ static struct attribute *ds620_attributes[] = {
 	NULL
 };
 
-static const struct attribute_group ds620_group = {
-	.attrs = ds620_attributes,
-};
+ATTRIBUTE_GROUPS(ds620);
 
 static int ds620_probe(struct i2c_client *client,
 		       const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct ds620_data *data;
-	int err;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct ds620_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct ds620_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/* Initialize the DS620 chip */
 	ds620_init_client(client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &ds620_group);
-	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_files;
-	}
-
-	dev_info(&client->dev, "temperature sensor found\n");
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&client->dev.kobj, &ds620_group);
-	return err;
-}
-
-static int ds620_remove(struct i2c_client *client)
-{
-	struct ds620_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &ds620_group);
-
-	return 0;
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, ds620_groups);
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id ds620_id[] = {
@@ -287,7 +262,6 @@ static struct i2c_driver ds620_driver = {
 		   .name = "ds620",
 	},
 	.probe = ds620_probe,
-	.remove = ds620_remove,
 	.id_table = ds620_id,
 };