The driver knows internally when a fan is not connected,
but does not export this knowledge to userspace. Use the
standard fanX_fault attributes to notify userspace if a
fan is not connected.
Tested on a Fujitsu DS3401-B1.
Signed-off-by: Armin Wolf <W_Armin@xxxxxx>
---
drivers/hwmon/ftsteutates.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
diff --git a/drivers/hwmon/ftsteutates.c b/drivers/hwmon/ftsteutates.c
index 0d8ab94250a9..25afd9167a34 100644
--- a/drivers/hwmon/ftsteutates.c
+++ b/drivers/hwmon/ftsteutates.c
@@ -356,6 +356,7 @@ static umode_t fts_is_visible(const void *devdata, enum hwmon_sensor_types type,
case hwmon_fan:
switch (attr) {
case hwmon_fan_input:
+ case hwmon_fan_fault:
return 0444;
case hwmon_fan_alarm:
return 0644;
@@ -411,6 +412,10 @@ static int fts_read(struct device *dev, enum hwmon_sensor_types type, u32 attr,
case hwmon_fan_alarm:
*val = !!(data->fan_alarm & BIT(channel));
+ return 0;
+ case hwmon_fan_fault:
+ *val = !(data->fan_present & BIT(channel));
+
return 0;
default:
break;
@@ -536,14 +541,14 @@ static const struct hwmon_channel_info *fts_info[] = {
HWMON_T_INPUT | HWMON_T_ALARM | HWMON_T_FAULT
),
HWMON_CHANNEL_INFO(fan,
- HWMON_F_INPUT | HWMON_F_ALARM,
- HWMON_F_INPUT | HWMON_F_ALARM,
- HWMON_F_INPUT | HWMON_F_ALARM,
- HWMON_F_INPUT | HWMON_F_ALARM,
- HWMON_F_INPUT | HWMON_F_ALARM,
- HWMON_F_INPUT | HWMON_F_ALARM,
- HWMON_F_INPUT | HWMON_F_ALARM,
- HWMON_F_INPUT | HWMON_F_ALARM
+ HWMON_F_INPUT | HWMON_F_ALARM | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_ALARM | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_ALARM | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_ALARM | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_ALARM | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_ALARM | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_ALARM | HWMON_F_FAULT,
+ HWMON_F_INPUT | HWMON_F_ALARM | HWMON_F_FAULT
),
HWMON_CHANNEL_INFO(pwm,
HWMON_PWM_AUTO_CHANNELS_TEMP,
--
2.30.2
