[PATCH ath-next v2] wifi: ath12k: add basic hwmon temperature reporting

[Maharaja Kennadyrajan]

On 2/19/2026 2:45 PM, Nicolas Escande wrote:
> On Thu Feb 19, 2026 at 8:34 AM CET, Maharaja Kennadyrajan wrote:
>> Add initial thermal support by wiring up a per-radio (pdev) hwmon temperature
>> sensor backed by the existing WMI pdev temperature command and event.
>> When userspace reads the sysfs file temp1_input, the driver sends
>> WMI_PDEV_GET_TEMPERATURE_CMDID (tag WMI_TAG_PDEV_GET_TEMPERATURE_CMD) and waits
>> for the corresponding WMI_PDEV_TEMPERATURE_EVENTID
>> (tag WMI_TAG_PDEV_TEMPERATURE_EVENT) to get the temperature and pdev_id.
>>
>> Export the reported value in millidegrees Celsius as required by hwmon.
>> The temperature reported is per-radio (pdev). In a multi-radio wiphy under a
>> single phy, a separate hwmon device is created for each radio.
>>
>> Sample command and output:
>> $ cat /sys/devices/pci0000:00/.../ieee80211/phyX/hwmonY/temp1_input
>> $ 50000
>>
> Hello,
>
> In ath10k & ath11k you guys also had the throtling feature. Do you guys plan to
> add this also at some point ?


Yes, we have a plan to add that throttling feature as well.


>
> [...]
>
>> --- a/drivers/net/wireless/ath/ath12k/Makefile
>> +++ b/drivers/net/wireless/ath/ath12k/Makefile
>> @@ -32,6 +32,7 @@ ath12k-$(CONFIG_ATH12K_TRACING) += trace.o
>>  ath12k-$(CONFIG_PM) += wow.o
>>  ath12k-$(CONFIG_ATH12K_COREDUMP) += coredump.o
>>  ath12k-$(CONFIG_NL80211_TESTMODE) += testmode.o
>> +ath12k-$(CONFIG_THERMAL) += thermal.o
>>
> I may be wrong but I do not see Kconfig changes that allows to actually build
> the new files. Is this intended ?
>   
>>  # for tracing framework to find trace.h
>>  CFLAGS_trace.o := -I$(src)
>> diff --git a/drivers/net/wireless/ath/ath12k/core.c b/drivers/net/wireless/ath/ath12k/core.c