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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>
hifive-unleashed-5.1
Guenter Roeck 2011-12-08 10:55:16 -08:00
parent b1b561a228
commit 5cd3222a9f
1 changed files with 4 additions and 0 deletions
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4
drivers/hwmon/f75375s.c
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@ -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));