[PATCH v2 2/7] firmware: samsung: acpm: Add TMU protocol support

Krzysztof Kozlowski krzk at kernel.org
Fri Feb 13 02:07:15 PST 2026


On 19/01/2026 13:08, Tudor Ambarus wrote:
> The Thermal Management Unit (TMU) on the Google GS101 SoC is managed
> through a hybrid model shared between the kernel and the Alive Clock
> and Power Manager (ACPM) firmware.
> 
> Add the protocol helpers required to communicate with the ACPM for
> thermal operations, including initialization, threshold configuration,
> temperature reading, and system suspend/resume handshakes.
> 
> Signed-off-by: Tudor Ambarus <tudor.ambarus at linaro.org>
> ---
>  drivers/firmware/samsung/Makefile                  |   1 +
>  drivers/firmware/samsung/exynos-acpm-tmu.c         | 212 +++++++++++++++++++++
>  drivers/firmware/samsung/exynos-acpm-tmu.h         |  33 ++++
>  drivers/firmware/samsung/exynos-acpm.c             |  12 ++
>  .../linux/firmware/samsung/exynos-acpm-protocol.h  |  24 +++
>  5 files changed, 282 insertions(+)

I understood from the cover letter this should go via thermal tree, so:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at oss.qualcomm.com>

Best regards,
Krzysztof



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