Re: [PATCH v4 0/7] Add initial Exynos850 support to the thermal driver

[Alexey Klimov]

Hello Mateusz,

Sorry for delayed response too.

On Tue Mar 3, 2026 at 9:02 AM GMT, Mateusz Majewski wrote:
> Hello and sorry for missing your mail, thankfully Marek pointed it out
> to me.
>
>> I applied the whole series locally, it applies fine on 6.19 but I didn't
>> check linux-next; and tested it on Exynos850 E850-96 board with the
>> following DT node:
>> 
>> tmuctrl_0: tmu@10070000 {
>>     compatible = "samsung,exynos850-tmu";
>>     reg = <0x10070000 0x800>;
>>     interrupts = <GIC_SPI 226 IRQ_TYPE_LEVEL_HIGH>;
>>     clocks = <&cmu_peri CLK_GOUT_BUSIF_TMU_PCLK>;
>>     clock-names = "tmu_apbif";
>>     #thermal-sensor-cells = <0>;
>> };
>> 
>> and thermal zones as you mentioned way back. It works just fine.
>> Temp goes up to 48 C with a loaded CPUs and settles at 36-37C when idle.
>> 
>> So for the whole series:
>> Tested-by: Alexey Klimov <alexey.klimov@xxxxxxxxxx>
>
> Thank you!
>
>> However, do you have plans to update it or re-submit?
>> Or any other plans working on it?
>
> Honestly not sure. If any other patches are merged that conflict with
> this series, I definitely can resolve the commits (for now it applies
> just fine to next-20260227, though I haven't compiled the result yet).
> Correct me if I am wrong, but I don't recall anything to be done in this
> series otherwise. If there is interest in this series, I can retest this
> on the other boards and re-submit this later this week.

So, I bumped into the same issue you described in your other email.
Other sensors seems to be not initialised and always return some weird
temp (minus 29 or smth like that). Only first sensors works.

I initially started to look at this after enabling idle states on E850-96
(they work with only some un-upstreamable change). Having at least one
sensor is better than nothing.

I am looking at enabling ACPM thermal thingy but so far I see similar
issue that temp of all sensors is reported as 10 C regardless via ACPM.

Having said that I am not going to oppose this series moving forward if
you wish.

Thank you.

Best regards,
Alexey