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hwmon: (ds1621) Reorder code statements 

Reorder the ds1621 driver code so that we can get rid of forward
function declarations.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Jean Delvare 2009-03-30 21:46:40 +02:00
parent 0d34fb8e93
commit 9202add674
1 changed files with 57 additions and 66 deletions
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123
drivers/hwmon/ds1621.c
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@ -81,34 +81,6 @@ struct ds1621_data {
u8 conf; /* Register encoding, combined */
};
static int ds1621_probe(struct i2c_client *client,
const struct i2c_device_id *id);
static int ds1621_detect(struct i2c_client *client, int kind,
struct i2c_board_info *info);
static void ds1621_init_client(struct i2c_client *client);
static int ds1621_remove(struct i2c_client *client);
static struct ds1621_data *ds1621_update_client(struct device *dev);
static const struct i2c_device_id ds1621_id[] = {
{ "ds1621", ds1621 },
{ "ds1625", ds1621 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ds1621_id);
/* This is the driver that will be inserted */
static struct i2c_driver ds1621_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "ds1621",
},
.probe = ds1621_probe,
.remove = ds1621_remove,
.id_table = ds1621_id,
.detect = ds1621_detect,
.address_data = &addr_data,
};
/* All registers are word-sized, except for the configuration register.
DS1621 uses a high-byte first convention, which is exactly opposite to
the SMBus standard. */
@ -146,6 +118,45 @@ static void ds1621_init_client(struct i2c_client *client)
i2c_smbus_write_byte(client, DS1621_COM_START);
}
static struct ds1621_data *ds1621_update_client(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct ds1621_data *data = i2c_get_clientdata(client);
u8 new_conf;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
int i;
dev_dbg(&client->dev, "Starting ds1621 update\n");
data->conf = ds1621_read_value(client, DS1621_REG_CONF);
for (i = 0; i < ARRAY_SIZE(data->temp); i++)
data->temp[i] = ds1621_read_value(client,
DS1621_REG_TEMP[i]);
/* reset alarms if necessary */
new_conf = data->conf;
if (data->temp[0] > data->temp[1]) /* input > min */
new_conf &= ~DS1621_ALARM_TEMP_LOW;
if (data->temp[0] < data->temp[2]) /* input < max */
new_conf &= ~DS1621_ALARM_TEMP_HIGH;
if (data->conf != new_conf)
ds1621_write_value(client, DS1621_REG_CONF,
new_conf);
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
return data;
}
static ssize_t show_temp(struct device *dev, struct device_attribute *da,
char *buf)
{
@ -294,45 +305,25 @@ static int ds1621_remove(struct i2c_client *client)
return 0;
}
static const struct i2c_device_id ds1621_id[] = {
{ "ds1621", ds1621 },
{ "ds1625", ds1621 },
{ }
};
MODULE_DEVICE_TABLE(i2c, ds1621_id);
static struct ds1621_data *ds1621_update_client(struct device *dev)
{
struct i2c_client *client = to_i2c_client(dev);
struct ds1621_data *data = i2c_get_clientdata(client);
u8 new_conf;
mutex_lock(&data->update_lock);
if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
|| !data->valid) {
int i;
dev_dbg(&client->dev, "Starting ds1621 update\n");
data->conf = ds1621_read_value(client, DS1621_REG_CONF);
for (i = 0; i < ARRAY_SIZE(data->temp); i++)
data->temp[i] = ds1621_read_value(client,
DS1621_REG_TEMP[i]);
/* reset alarms if necessary */
new_conf = data->conf;
if (data->temp[0] > data->temp[1]) /* input > min */
new_conf &= ~DS1621_ALARM_TEMP_LOW;
if (data->temp[0] < data->temp[2]) /* input < max */
new_conf &= ~DS1621_ALARM_TEMP_HIGH;
if (data->conf != new_conf)
ds1621_write_value(client, DS1621_REG_CONF,
new_conf);
data->last_updated = jiffies;
data->valid = 1;
}
mutex_unlock(&data->update_lock);
return data;
}
/* This is the driver that will be inserted */
static struct i2c_driver ds1621_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "ds1621",
},
.probe = ds1621_probe,
.remove = ds1621_remove,
.id_table = ds1621_id,
.detect = ds1621_detect,
.address_data = &addr_data,
};
static int __init ds1621_init(void)
{