Re: lm-senser can't detect thermal on thermal_zone

[Kuninori Morimoto]

Hi Zhang

Thank you for your help

> >     non thermal-zon
> >       sensor command: OK
> >       read from /sys/class/thermal/thermal_zone0 : OK
> > 
> >     thermal-zon
> >       sensor command: NG
> >       read from /sys/class/thermal/thermal_zone0 : OK
> 
> config THERMAL_HWMON
>         bool
>         prompt "Expose thermal sensors as hwmon device"
>         depends on HWMON=y || HWMON=THERMAL
>         default y
> 
> please check if the thermal subsystem is built in, while hwmon subsystem
> is built as module.
> you should either set CONFIG_HWMON=y, or set both CONFIG_HWMON and
> CONFIG_THERMAL as module.

Thanks. but it seems our system has it.

I noticed that thermal_zone case uses of_parse_thermal_zones()
and it has this.

                /* No hwmon because there might be hwmon drivers registering */
                tzp->no_hwmon = true;

and on thermal_zone_device_register() check this for hwmon

struct thermal_zone_device *thermal_zone_device_register(xxxx)
{
        ...
        if (!tz->tzp || !tz->tzp->no_hwmon) {
                result = thermal_add_hwmon_sysfs(tz);
                ...
        }
        ...
}

Does this mean "thermal_zone doesn't use lm-senser" ?