53bca371cd
Driver enabling various pieces of Limits Management Hardware(LMh) for cpu cluster0 and cpu cluster1 namely kick starting monitoring of temperature, current, battery current violations, enabling reliability algorithm and setting up various temperature limits. The following has been explained in the cover letter. I am including this here so that this remains in the commit message as well. LMh is a hardware infrastructure on some Qualcomm SoCs that can enforce temperature and current limits as programmed by software for certain IPs like CPU. On many newer LMh is configured by firmware/TZ and no programming is needed from the kernel side. But on certain SoCs like sdm845 the firmware does not do a complete programming of the h/w. On such soc's kernel software has to explicitly set up the temperature limits and turn on various monitoring and enforcing algorithms on the hardware. Tested-by: Steev Klimaszewski <steev@kali.org> # Lenovo Yoga C630 Signed-off-by: Thara Gopinath <thara.gopinath@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20210809191605.3742979-3-thara.gopinath@linaro.org
44 lines
1.8 KiB
Plaintext
44 lines
1.8 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config QCOM_TSENS
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tristate "Qualcomm TSENS Temperature Alarm"
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depends on QCOM_QFPROM
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depends on ARCH_QCOM || COMPILE_TEST
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help
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This enables the thermal sysfs driver for the TSENS device. It shows
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up in Sysfs as a thermal zone with multiple trip points. Disabling the
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thermal zone device via the mode file results in disabling the sensor.
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Also able to set threshold temperature for both hot and cold and update
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when a threshold is reached.
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config QCOM_SPMI_ADC_TM5
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tristate "Qualcomm SPMI PMIC Thermal Monitor ADC5"
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depends on OF && SPMI && IIO
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select REGMAP_SPMI
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select QCOM_VADC_COMMON
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help
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This enables the thermal driver for the ADC thermal monitoring
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device. It shows up as a thermal zone with multiple trip points.
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Thermal client sets threshold temperature for both warm and cool and
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gets updated when a threshold is reached.
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config QCOM_SPMI_TEMP_ALARM
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tristate "Qualcomm SPMI PMIC Temperature Alarm"
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depends on OF && SPMI && IIO
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select REGMAP_SPMI
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help
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This enables a thermal sysfs driver for Qualcomm plug-and-play (QPNP)
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PMIC devices. It shows up in sysfs as a thermal sensor with multiple
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trip points. The temperature reported by the thermal sensor reflects the
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real time die temperature if an ADC is present or an estimate of the
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temperature based upon the over temperature stage value.
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config QCOM_LMH
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tristate "Qualcomm Limits Management Hardware"
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depends on ARCH_QCOM
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help
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This enables initialization of Qualcomm limits management
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hardware(LMh). LMh allows for hardware-enforced mitigation for cpus based on
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input from temperature and current sensors. On many newer Qualcomm SoCs
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LMh is configured in the firmware and this feature need not be enabled.
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However, on certain SoCs like sdm845 LMh has to be configured from kernel.
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