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it87: Cleanup set_fan_div 

it87: Cleanup set_fan_div

We only change one fan clock divider at a time, so there is only one
fan min which needs to be saved and restored.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Jean Delvare 2006-08-28 14:35:46 +02:00 committed by Greg Kroah-Hartman
parent 3543a53f6c
commit 8ab4ec3ef4
1 changed files with 7 additions and 7 deletions
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14
drivers/hwmon/it87.c
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@ -564,14 +564,14 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
struct i2c_client *client = to_i2c_client(dev);
struct it87_data *data = i2c_get_clientdata(client);
unsigned long val = simple_strtoul(buf, NULL, 10);
int i, min[3];
int min;
u8 old;
mutex_lock(&data->update_lock);
old = it87_read_value(client, IT87_REG_FAN_DIV);
for (i = 0; i < 3; i++)
min[i] = FAN_FROM_REG(data->fan_min[i], DIV_FROM_REG(data->fan_div[i]));
/* Save fan min limit */
min = FAN_FROM_REG(data->fan_min[nr], DIV_FROM_REG(data->fan_div[nr]));
switch (nr) {
case 0:
@ -591,10 +591,10 @@ static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
val |= 0x1 << 6;
it87_write_value(client, IT87_REG_FAN_DIV, val);
for (i = 0; i < 3; i++) {
data->fan_min[i]=FAN_TO_REG(min[i], DIV_FROM_REG(data->fan_div[i]));
it87_write_value(client, IT87_REG_FAN_MIN(i), data->fan_min[i]);
}
/* Restore fan min limit */
data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
it87_write_value(client, IT87_REG_FAN_MIN(nr), data->fan_min[nr]);
mutex_unlock(&data->update_lock);
return count;
}