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hwmon: (adm1025) Various cleanups 

* Whitespace cleanups
* Constify scaling constants
* Fold long lines
* Drop redundant initializations to 0
* Rename new_client to just client
* Use sysfs_create_group()
* Drop a useless comment

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mark M. Hoffman <mhoffman@lightlink.com>
This commit is contained in:
Jean Delvare 2007-10-10 21:14:11 +02:00 коммит произвёл Mark M. Hoffman
Родитель bb08130032
Коммит 4e9527998f
1 изменённых файлов: 36 добавлений и 44 удалений
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80
drivers/hwmon/adm1025.c
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@ -75,7 +75,7 @@ I2C_CLIENT_INSMOD_2(adm1025, ne1619);
*/
#define ADM1025_REG_MAN_ID 0x3E
#define ADM1025_REG_CHIP_ID 0x3F
#define ADM1025_REG_CHIP_ID 0x3F
#define ADM1025_REG_CONFIG 0x40
#define ADM1025_REG_STATUS1 0x41
#define ADM1025_REG_STATUS2 0x42
@ -93,7 +93,7 @@ I2C_CLIENT_INSMOD_2(adm1025, ne1619);
* The ADM1025 uses signed 8-bit values for temperatures.
*/
static int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
static const int in_scale[6] = { 2500, 2250, 3300, 5000, 12000, 3300 };
#define IN_FROM_REG(reg,scale) (((reg) * (scale) + 96) / 192)
#define IN_TO_REG(val,scale) ((val) <= 0 ? 0 : \
@ -293,7 +293,8 @@ static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IWUSR | S_IRUGO, \
set_temp(1);
set_temp(2);
static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
static ssize_t
show_alarms(struct device *dev, struct device_attribute *attr, char *buf)
{
struct adm1025_data *data = adm1025_update_device(dev);
return sprintf(buf, "%u\n", data->alarms);
@ -317,19 +318,22 @@ static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 5);
static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 4);
static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
static ssize_t show_vid(struct device *dev, struct device_attribute *attr, char *buf)
static ssize_t
show_vid(struct device *dev, struct device_attribute *attr, char *buf)
{
struct adm1025_data *data = adm1025_update_device(dev);
return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
}
static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid, NULL);
static ssize_t show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
static ssize_t
show_vrm(struct device *dev, struct device_attribute *attr, char *buf)
{
struct adm1025_data *data = dev_get_drvdata(dev);
return sprintf(buf, "%u\n", data->vrm);
}
static ssize_t set_vrm(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
static ssize_t set_vrm(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct i2c_client *client = to_i2c_client(dev);
struct adm1025_data *data = i2c_get_clientdata(client);
@ -389,7 +393,7 @@ static const struct attribute_group adm1025_group = {
.attrs = adm1025_attributes,
};
static struct attribute *adm1025_attributes_opt[] = {
static struct attribute *adm1025_attributes_in4[] = {
&sensor_dev_attr_in4_input.dev_attr.attr,
&sensor_dev_attr_in4_min.dev_attr.attr,
&sensor_dev_attr_in4_max.dev_attr.attr,
@ -397,8 +401,8 @@ static struct attribute *adm1025_attributes_opt[] = {
NULL
};
static const struct attribute_group adm1025_group_opt = {
.attrs = adm1025_attributes_opt,
static const struct attribute_group adm1025_group_in4 = {
.attrs = adm1025_attributes_in4,
};
/*
@ -407,7 +411,7 @@ static const struct attribute_group adm1025_group_opt = {
*/
static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
{
struct i2c_client *new_client;
struct i2c_client *client;
struct adm1025_data *data;
int err = 0;
const char *name = "";
@ -421,14 +425,11 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
goto exit;
}
/* The common I2C client data is placed right before the
ADM1025-specific data. */
new_client = &data->client;
i2c_set_clientdata(new_client, data);
new_client->addr = address;
new_client->adapter = adapter;
new_client->driver = &adm1025_driver;
new_client->flags = 0;
client = &data->client;
i2c_set_clientdata(client, data);
client->addr = address;
client->adapter = adapter;
client->driver = &adm1025_driver;
/*
* Now we do the remaining detection. A negative kind means that
@ -440,12 +441,12 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
* requested, so both the detection and the identification steps
* are skipped.
*/
config = i2c_smbus_read_byte_data(new_client, ADM1025_REG_CONFIG);
config = i2c_smbus_read_byte_data(client, ADM1025_REG_CONFIG);
if (kind < 0) { /* detection */
if ((config & 0x80) != 0x00
|| (i2c_smbus_read_byte_data(new_client,
|| (i2c_smbus_read_byte_data(client,
ADM1025_REG_STATUS1) & 0xC0) != 0x00
|| (i2c_smbus_read_byte_data(new_client,
|| (i2c_smbus_read_byte_data(client,
ADM1025_REG_STATUS2) & 0xBC) != 0x00) {
dev_dbg(&adapter->dev,
"ADM1025 detection failed at 0x%02x.\n",
@ -457,11 +458,9 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
if (kind <= 0) { /* identification */
u8 man_id, chip_id;
man_id = i2c_smbus_read_byte_data(new_client,
ADM1025_REG_MAN_ID);
chip_id = i2c_smbus_read_byte_data(new_client,
ADM1025_REG_CHIP_ID);
man_id = i2c_smbus_read_byte_data(client, ADM1025_REG_MAN_ID);
chip_id = i2c_smbus_read_byte_data(client, ADM1025_REG_CHIP_ID);
if (man_id == 0x41) { /* Analog Devices */
if ((chip_id & 0xF0) == 0x20) { /* ADM1025/ADM1025A */
kind = adm1025;
@ -489,35 +488,28 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
}
/* We can fill in the remaining client fields */
strlcpy(new_client->name, name, I2C_NAME_SIZE);
data->valid = 0;
strlcpy(client->name, name, I2C_NAME_SIZE);
mutex_init(&data->update_lock);
/* Tell the I2C layer a new client has arrived */
if ((err = i2c_attach_client(new_client)))
if ((err = i2c_attach_client(client)))
goto exit_free;
/* Initialize the ADM1025 chip */
adm1025_init_client(new_client);
adm1025_init_client(client);
/* Register sysfs hooks */
if ((err = sysfs_create_group(&new_client->dev.kobj, &adm1025_group)))
if ((err = sysfs_create_group(&client->dev.kobj, &adm1025_group)))
goto exit_detach;
/* Pin 11 is either in4 (+12V) or VID4 */
if (!(config & 0x20)) {
if ((err = device_create_file(&new_client->dev,
&sensor_dev_attr_in4_input.dev_attr))
|| (err = device_create_file(&new_client->dev,
&sensor_dev_attr_in4_min.dev_attr))
|| (err = device_create_file(&new_client->dev,
&sensor_dev_attr_in4_max.dev_attr))
|| (err = device_create_file(&new_client->dev,
&sensor_dev_attr_in4_alarm.dev_attr)))
if ((err = sysfs_create_group(&client->dev.kobj,
&adm1025_group_in4)))
goto exit_remove;
}
data->hwmon_dev = hwmon_device_register(&new_client->dev);
data->hwmon_dev = hwmon_device_register(&client->dev);
if (IS_ERR(data->hwmon_dev)) {
err = PTR_ERR(data->hwmon_dev);
goto exit_remove;
@ -526,10 +518,10 @@ static int adm1025_detect(struct i2c_adapter *adapter, int address, int kind)
return 0;
exit_remove:
sysfs_remove_group(&new_client->dev.kobj, &adm1025_group);
sysfs_remove_group(&new_client->dev.kobj, &adm1025_group_opt);
sysfs_remove_group(&client->dev.kobj, &adm1025_group);
sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
exit_detach:
i2c_detach_client(new_client);
i2c_detach_client(client);
exit_free:
kfree(data);
exit:
@ -585,7 +577,7 @@ static int adm1025_detach_client(struct i2c_client *client)
hwmon_device_unregister(data->hwmon_dev);
sysfs_remove_group(&client->dev.kobj, &adm1025_group);
sysfs_remove_group(&client->dev.kobj, &adm1025_group_opt);
sysfs_remove_group(&client->dev.kobj, &adm1025_group_in4);
if ((err = i2c_detach_client(client)))
return err;