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| author | Tudor Ambarus <tudor.ambarus@linaro.org> | 2026-05-15 09:32:29 +0000 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzk@kernel.org> | 2026-05-29 16:02:22 +0200 |
| commit | 4ba23dfc49b4a3cefb4fdaa406172dfb8350098d (patch) | |
| tree | aa01dc92502c2eecbdee7c19fe6faf55fbfc829d /include | |
| parent | 50b400214abaec9122558e3f9c6fdd6295914c3c (diff) | |
| download | linux-next-history-4ba23dfc49b4a3cefb4fdaa406172dfb8350098d.tar.gz | |
firmware: samsung: acpm: Add TMU protocol support
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@linaro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://patch.msgid.link/20260515-acpm-tmu-helpers-v2-5-8ca011d5a965@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/firmware/samsung/exynos-acpm-protocol.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/firmware/samsung/exynos-acpm-protocol.h b/include/linux/firmware/samsung/exynos-acpm-protocol.h index e13d9ac73ff60..8511c3c3983bf 100644 --- a/include/linux/firmware/samsung/exynos-acpm-protocol.h +++ b/include/linux/firmware/samsung/exynos-acpm-protocol.h @@ -34,9 +34,27 @@ struct acpm_pmic_ops { u8 type, u8 reg, u8 chan, u8 value, u8 mask); }; +struct acpm_tmu_ops { + int (*init)(struct acpm_handle *handle, unsigned int acpm_chan_id); + int (*read_temp)(struct acpm_handle *handle, unsigned int acpm_chan_id, + u8 tz, int *temp); + int (*set_threshold)(struct acpm_handle *handle, + unsigned int acpm_chan_id, u8 tz, + const u8 temperature[8], size_t tlen); + int (*set_interrupt_enable)(struct acpm_handle *handle, + unsigned int acpm_chan_id, u8 tz, u8 inten); + int (*tz_control)(struct acpm_handle *handle, unsigned int acpm_chan_id, + u8 tz, bool enable); + int (*clear_tz_irq)(struct acpm_handle *handle, + unsigned int acpm_chan_id, u8 tz); + int (*suspend)(struct acpm_handle *handle, unsigned int acpm_chan_id); + int (*resume)(struct acpm_handle *handle, unsigned int acpm_chan_id); +}; + struct acpm_ops { struct acpm_dvfs_ops dvfs; struct acpm_pmic_ops pmic; + struct acpm_tmu_ops tmu; }; /** |