Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to
simplify the code a bit.
Signed-off-by: Axel Lin <axel.lin@xxxxxxxxxx>
---
drivers/hwmon/adm1031.c | 101 ++++++++++++++++++------------------------------
1 file changed, 38 insertions(+), 63 deletions(-)
diff --git a/drivers/hwmon/adm1031.c b/drivers/hwmon/adm1031.c
index 80c07c9..65ed9d6 100644
--- a/drivers/hwmon/adm1031.c
+++ b/drivers/hwmon/adm1031.c
@@ -74,7 +74,8 @@ typedef u8 auto_chan_table_t[8][2];
/* Each client has this additional data */
struct adm1031_data {
- struct device *hwmon_dev;
+ struct i2c_client *client;
+ const struct attribute_group *groups[3];
struct mutex update_lock;
int chip_type;
char valid; /* !=0 if following fields are valid */
@@ -118,8 +119,8 @@ adm1031_write_value(struct i2c_client *client, u8 reg, unsigned int value)
static struct adm1031_data *adm1031_update_device(struct device *dev)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long next_update;
int chan;
@@ -342,8 +343,8 @@ static ssize_t
set_fan_auto_channel(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
u8 reg;
@@ -417,8 +418,8 @@ static ssize_t
set_auto_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -446,8 +447,8 @@ static ssize_t
set_auto_temp_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -488,8 +489,8 @@ static ssize_t show_pwm(struct device *dev,
static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret, reg;
@@ -601,8 +602,8 @@ static ssize_t show_fan_min(struct device *dev,
static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -625,8 +626,8 @@ static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
u8 tmp;
@@ -727,8 +728,8 @@ static ssize_t set_temp_offset(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -748,8 +749,8 @@ static ssize_t set_temp_offset(struct device *dev,
static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -769,8 +770,8 @@ static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -790,8 +791,8 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
static ssize_t set_temp_crit(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int nr = to_sensor_dev_attr(attr)->index;
long val;
int ret;
@@ -867,8 +868,7 @@ static const unsigned int update_intervals[] = {
static ssize_t show_update_interval(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", data->update_interval);
}
@@ -877,8 +877,8 @@ static ssize_t set_update_interval(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct adm1031_data *data = i2c_get_clientdata(client);
+ struct adm1031_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int i, err;
u8 reg;
@@ -1044,15 +1044,16 @@ static void adm1031_init_client(struct i2c_client *client)
static int adm1031_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
+ struct device *dev = &client->dev;
+ struct device *hwmon_dev;
struct adm1031_data *data;
- int err;
- data = devm_kzalloc(&client->dev, sizeof(struct adm1031_data),
- GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(struct adm1031_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
i2c_set_clientdata(client, data);
+ data->client = client;
data->chip_type = id->driver_data;
mutex_init(&data->update_lock);
@@ -1064,39 +1065,14 @@ static int adm1031_probe(struct i2c_client *client,
/* Initialize the ADM1031 chip */
adm1031_init_client(client);
- /* Register sysfs hooks */
- err = sysfs_create_group(&client->dev.kobj, &adm1031_group);
- if (err)
- return err;
-
- if (data->chip_type == adm1031) {
- err = sysfs_create_group(&client->dev.kobj, &adm1031_group_opt);
- if (err)
- goto exit_remove;
- }
-
- data->hwmon_dev = hwmon_device_register(&client->dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove;
- }
+ /* sysfs hooks */
+ data->groups[0] = &adm1031_group;
+ if (data->chip_type == adm1031)
+ data->groups[1] = &adm1031_group_opt;
- return 0;
-
-exit_remove:
- sysfs_remove_group(&client->dev.kobj, &adm1031_group);
- sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
- return err;
-}
-
-static int adm1031_remove(struct i2c_client *client)
-{
- struct adm1031_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &adm1031_group);
- sysfs_remove_group(&client->dev.kobj, &adm1031_group_opt);
- 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 adm1031_id[] = {
@@ -1112,7 +1088,6 @@ static struct i2c_driver adm1031_driver = {
.name = "adm1031",
},
.probe = adm1031_probe,
- .remove = adm1031_remove,
.id_table = adm1031_id,
.detect = adm1031_detect,
.address_list = normal_i2c,
--
1.9.1
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