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/w83l786ng.c | 86 ++++++++++++++++-------------------------------
1 file changed, 29 insertions(+), 57 deletions(-)
diff --git a/drivers/hwmon/w83l786ng.c b/drivers/hwmon/w83l786ng.c
index 6caf33a..3302996 100644
--- a/drivers/hwmon/w83l786ng.c
+++ b/drivers/hwmon/w83l786ng.c
@@ -124,7 +124,7 @@ DIV_TO_REG(long val)
}
struct w83l786ng_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 */
@@ -162,8 +162,8 @@ w83l786ng_write_value(struct i2c_client *client, u8 reg, u8 value)
static struct w83l786ng_data *w83l786ng_update_device(struct device *dev)
{
- struct i2c_client *client = to_i2c_client(dev);
- struct w83l786ng_data *data = i2c_get_clientdata(client);
+ struct w83l786ng_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
int i, j;
u8 reg_tmp, pwmcfg;
@@ -252,8 +252,8 @@ store_in_##reg(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 w83l786ng_data *data = i2c_get_clientdata(client); \
+ struct w83l786ng_data *data = dev_get_drvdata(dev); \
+ struct i2c_client *client = data->client; \
unsigned long val; \
int err = kstrtoul(buf, 10, &val); \
if (err) \
@@ -305,8 +305,8 @@ 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 w83l786ng_data *data = i2c_get_clientdata(client);
+ struct w83l786ng_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int err;
@@ -343,8 +343,8 @@ store_fan_div(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 w83l786ng_data *data = i2c_get_clientdata(client);
+ struct w83l786ng_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long min;
u8 tmp_fan_div;
@@ -434,8 +434,8 @@ store_temp(struct device *dev, struct device_attribute *attr,
to_sensor_dev_attr_2(attr);
int nr = sensor_attr->nr;
int index = sensor_attr->index;
- struct i2c_client *client = to_i2c_client(dev);
- struct w83l786ng_data *data = i2c_get_clientdata(client);
+ struct w83l786ng_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
long val;
int err;
@@ -489,8 +489,8 @@ store_pwm_mode(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 w83l786ng_data *data = i2c_get_clientdata(client);
+ struct w83l786ng_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
u8 reg;
unsigned long val;
int err;
@@ -517,8 +517,8 @@ 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 w83l786ng_data *data = i2c_get_clientdata(client);
+ struct w83l786ng_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
unsigned long val;
int err;
@@ -541,8 +541,8 @@ store_pwm_enable(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 w83l786ng_data *data = i2c_get_clientdata(client);
+ struct w83l786ng_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
u8 reg;
unsigned long val;
int err;
@@ -597,8 +597,8 @@ store_tolerance(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 w83l786ng_data *data = i2c_get_clientdata(client);
+ struct w83l786ng_data *data = dev_get_drvdata(dev);
+ struct i2c_client *client = data->client;
u8 tol_tmp, tol_mask;
unsigned long val;
int err;
@@ -653,7 +653,7 @@ static struct sensor_device_attribute sda_tolerance[] = {
#define TOLERANCE_UNIT_ATTRS(X) \
&sda_tolerance[X].dev_attr.attr
-static struct attribute *w83l786ng_attributes[] = {
+static struct attribute *w83l786ng_attrs[] = {
IN_UNIT_ATTRS(0),
IN_UNIT_ATTRS(1),
IN_UNIT_ATTRS(2),
@@ -668,9 +668,7 @@ static struct attribute *w83l786ng_attributes[] = {
NULL
};
-static const struct attribute_group w83l786ng_group = {
- .attrs = w83l786ng_attributes,
-};
+ATTRIBUTE_GROUPS(w83l786ng);
static int
w83l786ng_detect(struct i2c_client *client, struct i2c_board_info *info)
@@ -725,15 +723,15 @@ w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct w83l786ng_data *data;
- int i, err = 0;
+ struct device *hwmon_dev;
+ int i;
u8 reg_tmp;
- data = devm_kzalloc(&client->dev, sizeof(struct w83l786ng_data),
- GFP_KERNEL);
+ data = devm_kzalloc(dev, sizeof(struct w83l786ng_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
- i2c_set_clientdata(client, data);
+ data->client = client;
mutex_init(&data->update_lock);
/* Initialize the chip */
@@ -750,35 +748,10 @@ w83l786ng_probe(struct i2c_client *client, const struct i2c_device_id *id)
data->fan_div[0] = reg_tmp & 0x07;
data->fan_div[1] = (reg_tmp >> 4) & 0x07;
- /* Register sysfs hooks */
- err = sysfs_create_group(&client->dev.kobj, &w83l786ng_group);
- if (err)
- goto exit_remove;
-
- data->hwmon_dev = hwmon_device_register(dev);
- if (IS_ERR(data->hwmon_dev)) {
- err = PTR_ERR(data->hwmon_dev);
- goto exit_remove;
- }
-
- return 0;
-
- /* Unregister sysfs hooks */
-
-exit_remove:
- sysfs_remove_group(&client->dev.kobj, &w83l786ng_group);
- return err;
-}
-
-static int
-w83l786ng_remove(struct i2c_client *client)
-{
- struct w83l786ng_data *data = i2c_get_clientdata(client);
-
- hwmon_device_unregister(data->hwmon_dev);
- sysfs_remove_group(&client->dev.kobj, &w83l786ng_group);
-
- return 0;
+ hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+ data,
+ w83l786ng_groups);
+ return PTR_ERR_OR_ZERO(hwmon_dev);
}
static const struct i2c_device_id w83l786ng_id[] = {
@@ -793,7 +766,6 @@ static struct i2c_driver w83l786ng_driver = {
.name = "w83l786ng",
},
.probe = w83l786ng_probe,
- .remove = w83l786ng_remove,
.id_table = w83l786ng_id,
.detect = w83l786ng_detect,
.address_list = normal_i2c,
--
1.8.3.2
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