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hwmon: (ftsteutates) Add support for fanX_fault attributes

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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@gmx.de>
Link: https://lore.kernel.org/r/20230105225107.58308-4-W_Armin@gmx.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
This commit is contained in:
Armin Wolf 2023-01-05 23:51:07 +01:00 committed by Guenter Roeck
parent 1c5759d8ce
commit c184f377a4
1 changed files with 13 additions and 8 deletions
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21
drivers/hwmon/ftsteutates.c
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@ -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,