diff options
| author | Guillem Jover <guillem@hadrons.org> | 2010-09-17 17:24:12 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-09-20 13:03:22 -0700 |
| commit | a804b54dcb96b45c38443c8128123a9b7a291346 (patch) | |
| tree | 751d525d0d501133647664ee6c3e0e3a14c57948 /drivers | |
| parent | 14df2c15035622fbc6830509d18b4256c81bbbfa (diff) | |
hwmon: (f75375s) Do not overwrite values read from registers
commit c3b327d60bbba3f5ff8fd87d1efc0e95eb6c121b upstream.
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>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -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 b0ef96cbe11f..195aea417758 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)) ; |