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hwmon: (f75375s) Do not overwrite values read from registers

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All bits in the values read from registers to be used for the next
write were getting overwritten, avoid doing so to not mess with the
current configuration.

Signed-off-by: Guillem Jover <guillem@hadrons.org>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: stable@kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
This commit is contained in:
Guillem Jover 2010-09-17 17:24:12 +02:00 committed by Jean Delvare
parent 96f3640894
commit c3b327d60b
1 changed files with 2 additions and 2 deletions
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4
drivers/hwmon/f75375s.c
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@ -298,7 +298,7 @@ static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
return -EINVAL;
fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
fanmode = ~(3 << FAN_CTRL_MODE(nr));
fanmode &= ~(3 << FAN_CTRL_MODE(nr));
switch (val) {
case 0: /* Full speed */
@ -350,7 +350,7 @@ static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
mutex_lock(&data->update_lock);
conf = f75375_read8(client, F75375_REG_CONFIG1);
conf = ~(1 << FAN_CTRL_LINEAR(nr));
conf &= ~(1 << FAN_CTRL_LINEAR(nr));
if (val == 0)
conf |= (1 << FAN_CTRL_LINEAR(nr)) ;