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hwmon: (atxp1) Convert to devm_hwmon_device_register_with_groups

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Use ATTRIBUTE_GROUPS macro and devm_hwmon_device_register_with_groups.
This simplifies the code a bit.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Axel Lin 2014-06-07 07:55:10 +08:00 committed by Guenter Roeck
parent d17a7dca04
commit 11f7e494fd
1 changed files with 21 additions and 55 deletions
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76
drivers/hwmon/atxp1.c
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@ -46,7 +46,7 @@ MODULE_AUTHOR("Sebastian Witt <se.witt@gmx.net>");
static const unsigned short normal_i2c[] = { 0x37, 0x4e, I2C_CLIENT_END };
struct atxp1_data {
struct device *hwmon_dev;
struct i2c_client *client;
struct mutex update_lock;
unsigned long last_updated;
u8 valid;
@ -61,11 +61,8 @@ struct atxp1_data {
static struct atxp1_data *atxp1_update_device(struct device *dev)
{
struct i2c_client *client;
struct atxp1_data *data;
client = to_i2c_client(dev);
data = i2c_get_clientdata(client);
struct atxp1_data *data = dev_get_drvdata(dev);
struct i2c_client *client = data->client;
mutex_lock(&data->update_lock);
@ -105,15 +102,12 @@ static ssize_t atxp1_storevcore(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
struct atxp1_data *data;
struct i2c_client *client;
struct atxp1_data *data = atxp1_update_device(dev);
struct i2c_client *client = data->client;
int vid, cvid;
unsigned long vcore;
int err;
client = to_i2c_client(dev);
data = atxp1_update_device(dev);
err = kstrtoul(buf, 10, &vcore);
if (err)
return err;
@ -184,14 +178,11 @@ static ssize_t atxp1_storegpio1(struct device *dev,
struct device_attribute *attr, const char *buf,
size_t count)
{
struct atxp1_data *data;
struct i2c_client *client;
struct atxp1_data *data = atxp1_update_device(dev);
struct i2c_client *client = data->client;
unsigned long value;
int err;
client = to_i2c_client(dev);
data = atxp1_update_device(dev);
err = kstrtoul(buf, 16, &value);
if (err)
return err;
@ -234,7 +225,7 @@ static ssize_t atxp1_storegpio2(struct device *dev,
const char *buf, size_t count)
{
struct atxp1_data *data = atxp1_update_device(dev);
struct i2c_client *client = to_i2c_client(dev);
struct i2c_client *client = data->client;
unsigned long value;
int err;
@ -260,17 +251,13 @@ static ssize_t atxp1_storegpio2(struct device *dev,
*/
static DEVICE_ATTR(gpio2, S_IRUGO | S_IWUSR, atxp1_showgpio2, atxp1_storegpio2);
static struct attribute *atxp1_attributes[] = {
static struct attribute *atxp1_attrs[] = {
&dev_attr_gpio1.attr,
&dev_attr_gpio2.attr,
&dev_attr_cpu0_vid.attr,
NULL
};
static const struct attribute_group atxp1_group = {
.attrs = atxp1_attributes,
};
ATTRIBUTE_GROUPS(atxp1);
/* Return 0 if detection is successful, -ENODEV otherwise */
static int atxp1_detect(struct i2c_client *new_client,
@ -314,50 +301,30 @@ static int atxp1_detect(struct i2c_client *new_client,
return 0;
}
static int atxp1_probe(struct i2c_client *new_client,
static int atxp1_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct device *dev = &client->dev;
struct atxp1_data *data;
int err;
struct device *hwmon_dev;
data = devm_kzalloc(&new_client->dev, sizeof(struct atxp1_data),
GFP_KERNEL);
data = devm_kzalloc(dev, sizeof(struct atxp1_data), GFP_KERNEL);
if (!data)
return -ENOMEM;
/* Get VRM */
data->vrm = vid_which_vrm();
i2c_set_clientdata(new_client, data);
data->client = client;
mutex_init(&data->update_lock);
/* Register sysfs hooks */
err = sysfs_create_group(&new_client->dev.kobj, &atxp1_group);
if (err)
return err;
hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
data,
atxp1_groups);
if (IS_ERR(hwmon_dev))
return PTR_ERR(hwmon_dev);
data->hwmon_dev = hwmon_device_register(&new_client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove_files;
}
dev_info(&new_client->dev, "Using VRM: %d.%d\n",
data->vrm / 10, data->vrm % 10);
return 0;
exit_remove_files:
sysfs_remove_group(&new_client->dev.kobj, &atxp1_group);
return err;
};
static int atxp1_remove(struct i2c_client *client)
{
struct atxp1_data *data = i2c_get_clientdata(client);
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &atxp1_group);
dev_info(dev, "Using VRM: %d.%d\n", data->vrm / 10, data->vrm % 10);
return 0;
};
@ -374,7 +341,6 @@ static struct i2c_driver atxp1_driver = {
.name = "atxp1",
},
.probe = atxp1_probe,
.remove = atxp1_remove,
.id_table = atxp1_id,
.detect = atxp1_detect,
.address_list = normal_i2c,