Use devm_hwmon_device_register_with_groups() to simplify the code a bit.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
drivers/hwmon/smsc47m192.c | 77 +++++++++++++++-------------------------------
1 file changed, 25 insertions(+), 52 deletions(-)
diff --git a/drivers/hwmon/smsc47m192.c b/drivers/hwmon/smsc47m192.c
index 7ab1659..5c59f8b 100644
--- a/drivers/hwmon/smsc47m192.c
+++ b/drivers/hwmon/smsc47m192.c
@@ -95,7 +95,8 @@ static inline int TEMP_FROM_REG(s8 val)
}
struct smsc47m192_data {
- struct device *hwmon_dev;
+ struct i2c_client *client;
+ const struct attribute_group *groups[3];
struct mutex update_lock;
char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */
@@ -114,8 +115,8 @@ struct smsc47m192_data {
static struct smsc47m192_data *smsc47m192_update_device(struct device *dev)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct smsc47m192_data *data = i2c_get_clientdata(client);
+ struct smsc47m192_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int i, config;
mutex_lock(&data->update_lock);
@@ -209,8 +210,8 @@ static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
{
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct smsc47m192_data *data = i2c_get_clientdata(client);
+ struct smsc47m192_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int err;
@@ -231,8 +232,8 @@ static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
{
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct smsc47m192_data *data = i2c_get_clientdata(client);
+ struct smsc47m192_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int err;
@@ -298,8 +299,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
{
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct smsc47m192_data *data = i2c_get_clientdata(client);
+ struct smsc47m192_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
long val;
int err;
@@ -320,8 +321,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
{
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct smsc47m192_data *data = i2c_get_clientdata(client);
+ struct smsc47m192_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
long val;
int err;
@@ -351,8 +352,8 @@ static ssize_t set_temp_offset(struct device *dev, struct device_attribute
{
struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
int nr = sensor_attr->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct smsc47m192_data *data = i2c_get_clientdata(client);
+ struct smsc47m192_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
u8 sfr = i2c_smbus_read_byte_data(client, SMSC47M192_REG_SFR);
long val;
int err;
@@ -589,59 +590,32 @@ static int smsc47m192_detect(struct i2c_client *client,
static int smsc47m192_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ struct device *dev = &client->dev;
+ struct device *hwmon_dev;
struct smsc47m192_data *data;
int config;
- int err;
- data = devm_kzalloc(&client->dev, sizeof(struct smsc47m192_data),
- GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(struct smsc47m192_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- i2c_set_clientdata(client, data);
+ data->client = client;
data->vrm = vid_which_vrm();
mutex_init(&data->update_lock);
/* Initialize the SMSC47M192 chip */
smsc47m192_init_client(client);
- /* Register sysfs hooks */
- err = sysfs_create_group(&client->dev.kobj, &smsc47m192_group);
- if (err)
- return err;
-
+ /* sysfs hooks */
+ data->groups[0] = &smsc47m192_group;
/* Pin 110 is either in4 (+12V) or VID4 */
config = i2c_smbus_read_byte_data(client, SMSC47M192_REG_CONFIG);
- if (!(config & 0x20)) {
- err = sysfs_create_group(&client->dev.kobj,
- &smsc47m192_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;
- }
+ if (!(config & 0x20))
+ data->groups[1] = &smsc47m192_group_in4;
- return 0;
-
-exit_remove_files:
- sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
- sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
- return err;
-}
-
-static int smsc47m192_remove(struct i2c_client *client)
-{
- struct smsc47m192_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &smsc47m192_group);
- sysfs_remove_group(&client->dev.kobj, &smsc47m192_group_in4);
-
- 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 smsc47m192_id[] = {
@@ -656,7 +630,6 @@ static struct i2c_driver smsc47m192_driver = {
.name = "smsc47m192",
},
.probe = smsc47m192_probe,
- .remove = smsc47m192_remove,
.id_table = smsc47m192_id,
.detect = smsc47m192_detect,
.address_list = normal_i2c,
--
1.9.1
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