diff options
| author |   Guillem Jover <guillem@hadrons.org> | 2010-09-17 17:24:12 +0200 |
|---|---|---|
| committer |   Jean Delvare <khali@linux-fr.org> | 2010-09-17 17:24:12 +0200 |
| commit | c3b327d60bbba3f5ff8fd87d1efc0e95eb6c121b (patch) | |
| tree | 0b01025d310d304d5a2444ff8f5db14931df95ed /drivers/hwmon | |
| parent | hwmon: (f75375s) Shift control mode to the correct bit position (diff) | |
| download | linux-dev-c3b327d60bbba3f5ff8fd87d1efc0e95eb6c121b.tar.xz linux-dev-c3b327d60bbba3f5ff8fd87d1efc0e95eb6c121b.zip | |
hwmon: (f75375s) Do not overwrite values read from registers
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>
Diffstat (limited to 'drivers/hwmon')
| -rw-r--r-- | drivers/hwmon/f75375s.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c index e5828c009d91..9638d58f99fd 100644 --- a/drivers/hwmon/f75375s.c +++ b/drivers/hwmon/f75375s.c @@ -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)) ; |