[PATCH 0/9] Add thermal sensor driver support for Mediatek MT8196
Laura Nao
laura.nao at collabora.com
Tue Jul 22 02:50:46 PDT 2025
Hi ChenYu,
On 7/22/25 09:40, Chen-Yu Tsai wrote:
> Hi,
>
> On Mon, Jul 21, 2025 at 4:18 PM Laura Nao <laura.nao at collabora.com> wrote:
>>
>> This patch series extends the MediaTek LVTS thermal driver to support the
>> MT8196 SoC.
>>
>> MT8196 uses a positive temp_factor for temperature conversion, requiring
>> slight adjustments in the conversion logic.
>>
>> To support this, the series introduces:
>>
>> - A new struct lvts_platform_ops to allow platform-specific
>> conversion logic between raw sensor values and temperature
>> - A variant of the lvts_temp_to_raw() implementation for SoCs with positive
>> temp_factor values
>> - Platform data and controller definitions for MT8196
>
> I see the GPU and APU thermal sensors were left out. Was there a reason
> for this?
>
Based on my testing, the GPU and APU sensors are not functional at this
stage - the APU controller returns an invalid ID, and the GPU sensors
report invalid values. I suspect that both the GPU and APU need to be
fully initialized for the sensors to operate correctly, so I'm planning
to upstream support for those at a later stage.
Best,
Laura
> Thanks
> ChenYu
>
>> Laura Nao (9):
>> dt-bindings: thermal: mediatek: Add LVTS thermal controller support
>> for MT8196
>> thermal/drivers/mediatek/lvts: Make number of calibration offsets
>> configurable
>> thermal/drivers/mediatek/lvts: Guard against zero temp_factor in
>> lvts_raw_to_temp
>> thermal: mediatek: lvts: Add platform ops to support alternative
>> conversion logic
>> thermal/drivers/mediatek/lvts: Add lvts_temp_to_raw variant for
>> positive temp_factor
>> thermal/drivers/mediatek/lvts: Add support for ATP mode
>> thermal/drivers/mediatek/lvts: Support MSR offset for 16-bit
>> calibration data
>> thermal/drivers/mediatek/lvts_thermal: Add MT8196 support
>> dt-bindings: nvmem: mediatek: efuse: Add support for MT8196
>>
>> .../bindings/nvmem/mediatek,efuse.yaml | 1 +
>> .../thermal/mediatek,lvts-thermal.yaml | 2 +
>> drivers/thermal/mediatek/lvts_thermal.c | 315 ++++++++++++++++--
>> .../thermal/mediatek,lvts-thermal.h | 26 ++
>> 4 files changed, 325 insertions(+), 19 deletions(-)
>>
>> --
>> 2.39.5
>>
>>
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