From 96f3640894012be7dd15a384566bfdc18297bc6c Mon Sep 17 00:00:00 2001 From: Guillem Jover Date: Fri, 17 Sep 2010 17:24:11 +0200 Subject: hwmon: (f75375s) Shift control mode to the correct bit position The spec notes that fan0 and fan1 control mode bits are located in bits 7-6 and 5-4 respectively, but the FAN_CTRL_MODE macro was making the bits shift by 5 instead of by 4. Signed-off-by: Guillem Jover Cc: Riku Voipio Cc: stable@kernel.org Signed-off-by: Jean Delvare --- drivers/hwmon/f75375s.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/hwmon/f75375s.c') diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c index 0f58ecc5334d..e5828c009d91 100644 --- a/drivers/hwmon/f75375s.c +++ b/drivers/hwmon/f75375s.c @@ -79,7 +79,7 @@ enum chips { f75373, f75375 }; #define F75375_REG_PWM2_DROP_DUTY 0x6C #define FAN_CTRL_LINEAR(nr) (4 + nr) -#define FAN_CTRL_MODE(nr) (5 + ((nr) * 2)) +#define FAN_CTRL_MODE(nr) (4 + ((nr) * 2)) /* * Data structures and manipulation thereof -- cgit v1.2.3 From c3b327d60bbba3f5ff8fd87d1efc0e95eb6c121b Mon Sep 17 00:00:00 2001 From: Guillem Jover Date: Fri, 17 Sep 2010 17:24:12 +0200 Subject: 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 Cc: Riku Voipio Cc: stable@kernel.org Signed-off-by: Jean Delvare --- drivers/hwmon/f75375s.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/hwmon/f75375s.c') 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)) ; -- cgit v1.2.3