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hwmon: (w83l786ng) Convert to devm_hwmon_device_register_with_groups

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Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups() to
simplify the code a bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Kevin Lo <kevlo@kevlo.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Axel Lin 2014-06-25 09:39:51 +08:00 committed by Guenter Roeck
parent bab711ae8c
commit 202e4851f8
1 changed files with 29 additions and 57 deletions
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86
drivers/hwmon/w83l786ng.c
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@ -124,7 +124,7 @@ DIV_TO_REG(long val)
} }
struct w83l786ng_data { struct w83l786ng_data {
struct device *hwmon_dev; struct i2c_client *client;
struct mutex update_lock; struct mutex update_lock;
char valid; /* !=0 if following fields are valid */ char valid; /* !=0 if following fields are valid */
unsigned long last_updated; /* In jiffies */ 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) static struct w83l786ng_data *w83l786ng_update_device(struct device *dev)
{ {
struct i2c_client *client = to_i2c_client(dev); struct w83l786ng_data *data = dev_get_drvdata(dev);
struct w83l786ng_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
int i, j; int i, j;
u8 reg_tmp, pwmcfg; u8 reg_tmp, pwmcfg;
@ -252,8 +252,8 @@ store_in_##reg(struct device *dev, struct device_attribute *attr, \
const char *buf, size_t count) \ const char *buf, size_t count) \
{ \ { \
int nr = to_sensor_dev_attr(attr)->index; \ int nr = to_sensor_dev_attr(attr)->index; \
struct i2c_client *client = to_i2c_client(dev); \ struct w83l786ng_data *data = dev_get_drvdata(dev); \
struct w83l786ng_data *data = i2c_get_clientdata(client); \ struct i2c_client *client = data->client; \
unsigned long val; \ unsigned long val; \
int err = kstrtoul(buf, 10, &val); \ int err = kstrtoul(buf, 10, &val); \
if (err) \ if (err) \
@ -305,8 +305,8 @@ store_fan_min(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
int nr = to_sensor_dev_attr(attr)->index; int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev); struct w83l786ng_data *data = dev_get_drvdata(dev);
struct w83l786ng_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
unsigned long val; unsigned long val;
int err; int err;
@ -343,8 +343,8 @@ store_fan_div(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
int nr = to_sensor_dev_attr(attr)->index; int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev); struct w83l786ng_data *data = dev_get_drvdata(dev);
struct w83l786ng_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
unsigned long min; unsigned long min;
u8 tmp_fan_div; u8 tmp_fan_div;
@ -434,8 +434,8 @@ store_temp(struct device *dev, struct device_attribute *attr,
to_sensor_dev_attr_2(attr); to_sensor_dev_attr_2(attr);
int nr = sensor_attr->nr; int nr = sensor_attr->nr;
int index = sensor_attr->index; int index = sensor_attr->index;
struct i2c_client *client = to_i2c_client(dev); struct w83l786ng_data *data = dev_get_drvdata(dev);
struct w83l786ng_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
long val; long val;
int err; int err;
@ -489,8 +489,8 @@ store_pwm_mode(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
int nr = to_sensor_dev_attr(attr)->index; int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev); struct w83l786ng_data *data = dev_get_drvdata(dev);
struct w83l786ng_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
u8 reg; u8 reg;
unsigned long val; unsigned long val;
int err; int err;
@ -517,8 +517,8 @@ store_pwm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
int nr = to_sensor_dev_attr(attr)->index; int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev); struct w83l786ng_data *data = dev_get_drvdata(dev);
struct w83l786ng_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
unsigned long val; unsigned long val;
int err; int err;
@ -541,8 +541,8 @@ store_pwm_enable(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
int nr = to_sensor_dev_attr(attr)->index; int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev); struct w83l786ng_data *data = dev_get_drvdata(dev);
struct w83l786ng_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
u8 reg; u8 reg;
unsigned long val; unsigned long val;
int err; int err;
@ -597,8 +597,8 @@ store_tolerance(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count) const char *buf, size_t count)
{ {
int nr = to_sensor_dev_attr(attr)->index; int nr = to_sensor_dev_attr(attr)->index;
struct i2c_client *client = to_i2c_client(dev); struct w83l786ng_data *data = dev_get_drvdata(dev);
struct w83l786ng_data *data = i2c_get_clientdata(client); struct i2c_client *client = data->client;
u8 tol_tmp, tol_mask; u8 tol_tmp, tol_mask;
unsigned long val; unsigned long val;
int err; int err;
@ -653,7 +653,7 @@ static struct sensor_device_attribute sda_tolerance[] = {
#define TOLERANCE_UNIT_ATTRS(X) \ #define TOLERANCE_UNIT_ATTRS(X) \
&sda_tolerance[X].dev_attr.attr &sda_tolerance[X].dev_attr.attr
static struct attribute *w83l786ng_attributes[] = { static struct attribute *w83l786ng_attrs[] = {
IN_UNIT_ATTRS(0), IN_UNIT_ATTRS(0),
IN_UNIT_ATTRS(1), IN_UNIT_ATTRS(1),
IN_UNIT_ATTRS(2), IN_UNIT_ATTRS(2),
@ -668,9 +668,7 @@ static struct attribute *w83l786ng_attributes[] = {
NULL NULL
}; };
static const struct attribute_group w83l786ng_group = { ATTRIBUTE_GROUPS(w83l786ng);
.attrs = w83l786ng_attributes,
};
static int static int
w83l786ng_detect(struct i2c_client *client, struct i2c_board_info *info) 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 device *dev = &client->dev;
struct w83l786ng_data *data; struct w83l786ng_data *data;
int i, err = 0; struct device *hwmon_dev;
int i;
u8 reg_tmp; u8 reg_tmp;
data = devm_kzalloc(&client->dev, sizeof(struct w83l786ng_data), data = devm_kzalloc(dev, sizeof(struct w83l786ng_data), GFP_KERNEL);
GFP_KERNEL);
if (!data) if (!data)
return -ENOMEM; return -ENOMEM;
i2c_set_clientdata(client, data); data->client = client;
mutex_init(&data->update_lock); mutex_init(&data->update_lock);
/* Initialize the chip */ /* 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[0] = reg_tmp & 0x07;
data->fan_div[1] = (reg_tmp >> 4) & 0x07; data->fan_div[1] = (reg_tmp >> 4) & 0x07;
/* Register sysfs hooks */ hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
err = sysfs_create_group(&client->dev.kobj, &w83l786ng_group); data,
if (err) w83l786ng_groups);
goto exit_remove; return PTR_ERR_OR_ZERO(hwmon_dev);
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;
} }
static const struct i2c_device_id w83l786ng_id[] = { static const struct i2c_device_id w83l786ng_id[] = {
@ -793,7 +766,6 @@ static struct i2c_driver w83l786ng_driver = {
.name = "w83l786ng", .name = "w83l786ng",
}, },
.probe = w83l786ng_probe, .probe = w83l786ng_probe,
.remove = w83l786ng_remove,
.id_table = w83l786ng_id, .id_table = w83l786ng_id,
.detect = w83l786ng_detect, .detect = w83l786ng_detect,
.address_list = normal_i2c, .address_list = normal_i2c,