diff options
| author | Guenter Roeck <guenter.roeck@ericsson.com> | 2011-12-08 10:55:16 -0800 |
|---|---|---|
| committer | Guenter Roeck <guenter.roeck@ericsson.com> | 2012-01-05 08:19:31 -0800 |
| commit | 5cd3222a9f3742e3da6becbd1a939e1221e030c4 (patch) | |
| tree | fefb7b4539a01b9115ef58e1b45be62c74af1eb7 /drivers/hwmon/f75375s.c | |
| parent | b1b561a228de9796eff8c7e03e1e7ee63ab13115 (diff) | |
hwmon: (f75375s) Disable setting DC fan control mode for F75373
F75373 does not support DC (linear voltage) fan control mode, so don't let
the user set it.
Cc: Riku Voipio <riku.voipio@iki.fi>
Reviewed-by: Bjoern Gerhart <oss@extracloud.de>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Diffstat (limited to 'drivers/hwmon/f75375s.c')
| -rw-r--r-- | drivers/hwmon/f75375s.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c index 9c3f078e263b..35b570e56ff0 100644 --- a/drivers/hwmon/f75375s.c +++ b/drivers/hwmon/f75375s.c @@ -372,6 +372,10 @@ static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr, if (!(val == 0 || val == 1)) return -EINVAL; + /* F75373 does not support DC (linear voltage) fan control mode */ + if (data->kind == f75373 && val == 0) + return -EINVAL; + mutex_lock(&data->update_lock); conf = f75375_read8(client, F75375_REG_CONFIG1); conf &= ~(1 << FAN_CTRL_LINEAR(nr)); |