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The Low Voltage Thermal Sensor (LVTS) is a multiple sensors, multi controllers contained in a thermal domain. A thermal domains can be the MCU or the AP. Each thermal domains contain up to seven controllers, each thermal controller handle up to four thermal sensors. The LVTS has two Finite State Machines (FSM), one to handle the functionin temperatures range like hot or cold temperature and another one to handle monitoring trip point. The FSM notifies via interrupts when a trip point is crossed. The interrupt is managed at the thermal controller level, so when an interrupt occurs, the driver has to find out which sensor triggered such an interrupt. The sampling of the thermal can be filtered or immediate. For the former, the LVTS measures several points and applies a low pass filter. Signed-off-by: Balsam CHIHI <bchihi@baylibre.com> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> On MT8195 Tomato Chromebook: Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20230209105628.50294-5-bchihi@baylibre.com Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
38 lines
1.2 KiB
Plaintext
38 lines
1.2 KiB
Plaintext
config MTK_THERMAL
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tristate "MediaTek thermal drivers"
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depends on THERMAL_OF
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help
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This is the option for MediaTek thermal software solutions.
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Please enable corresponding options to get temperature
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information from thermal sensors or turn on throttle
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mechaisms for thermal mitigation.
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if MTK_THERMAL
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config MTK_SOC_THERMAL
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tristate "AUXADC temperature sensor driver for MediaTek SoCs"
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depends on HAS_IOMEM
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help
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Enable this option if you want to get SoC temperature
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information for MediaTek platforms.
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This driver configures thermal controllers to collect
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temperature via AUXADC interface.
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config MTK_LVTS_THERMAL
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tristate "LVTS Thermal Driver for MediaTek SoCs"
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depends on HAS_IOMEM
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help
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Enable this option if you want to get SoC temperature
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information for supported MediaTek platforms.
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This driver configures LVTS (Low Voltage Thermal Sensor)
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thermal controllers to collect temperatures via ASIF
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(Analog Serial Interface).
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config MTK_LVTS_THERMAL_DEBUGFS
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bool "LVTS thermal debugfs"
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depends on MTK_LVTS_THERMAL && DEBUG_FS
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help
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Enable this option to debug the internals of the device driver.
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endif
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