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/kernel/linux/linux-4.19/Documentation/devicetree/bindings/thermal/
Dthermal.txt1 * Thermal Framework Device Tree descriptor
4 defining hardware thermal structure using device tree.
5 A thermal structure includes thermal zones and their components,
6 such as trip points, polling intervals, sensors and cooling devices
9 The target of device tree thermal descriptors is to describe only
10 the hardware thermal aspects. The thermal device tree bindings are
14 There are five types of nodes involved to describe thermal bindings:
15 - thermal sensors: devices which may be used to take temperature
17 - cooling devices: devices which may be used to dissipate heat.
18 - trip points: describe key temperatures at which cooling is recommended. The
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Dqcom-tsens.txt4 - compatible:
6 - "qcom,msm8916-tsens" (MSM8916)
7 - "qcom,msm8974-tsens" (MSM8974)
8 - "qcom,msm8996-tsens" (MSM8996)
9 - "qcom,msm8998-tsens", "qcom,tsens-v2" (MSM8998)
10 - "qcom,sdm845-tsens", "qcom,tsens-v2" (SDM845)
11 The generic "qcom,tsens-v2" property must be used as a fallback for any SoC
15 - reg: Address range of the thermal registers.
20 - #thermal-sensor-cells : Should be 1. See ./thermal.txt for a description.
21 - #qcom,sensors: Number of sensors in tsens block
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Dnvidia,tegra124-soctherm.txt1 Tegra124 SOCTHERM thermal management system
3 The SOCTHERM IP block contains thermal sensors, support for polled
4 or interrupt-based thermal monitoring, CPU and GPU throttling based
10 - compatible : For Tegra124, must contain "nvidia,tegra124-soctherm".
11 For Tegra132, must contain "nvidia,tegra132-soctherm".
12 For Tegra210, must contain "nvidia,tegra210-soctherm".
13 - reg : Should contain at least 2 entries for each entry in reg-names:
14 - SOCTHERM register set
15 - Tegra CAR register set: Required for Tegra124 and Tegra210.
16 - CCROC register set: Required for Tegra132.
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Drcar-gen3-thermal.txt1 * DT bindings for Renesas R-Car Gen3 Thermal Sensor driver
3 On R-Car Gen3 SoCs, the thermal sensor controllers (TSC) control the thermal
4 sensors (THS) which are the analog circuits for measuring temperature (Tj)
8 - compatible : "renesas,<soctype>-thermal",
10 - "renesas,r8a7795-thermal" (R-Car H3)
11 - "renesas,r8a7796-thermal" (R-Car M3-W)
12 - "renesas,r8a77965-thermal" (R-Car M3-N)
13 - reg : Address ranges of the thermal registers. Each sensor
17 - clocks : Must contain a reference to the functional clock.
18 - #thermal-sensor-cells : must be <1>.
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/thermal/
Dbrcm,sr-thermal.txt1 * Broadcom Stingray Thermal
3 This binding describes thermal sensors that is part of Stingray SoCs.
6 - compatible : Must be "brcm,sr-thermal"
7 - reg : Memory where tmon data will be available.
8 - brcm,tmon-mask: A one cell bit mask of valid TMON sources.
10 - #thermal-sensor-cells : Thermal sensor phandler
11 - polling-delay: Max number of milliseconds to wait between polls.
12 - thermal-sensors: A list of thermal sensor phandles and specifier.
14 in correspond with brcm,tmon-mask.
15 - temperature: trip temperature threshold in millicelsius.
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Dthermal-zones.yaml1 # SPDX-License-Identifier: (GPL-2.0)
4 ---
5 $id: http://devicetree.org/schemas/thermal/thermal-zones.yaml#
6 $schema: http://devicetree.org/meta-schemas/base.yaml#
8 title: Thermal zone binding
11 - Amit Kucheria <amitk@kernel.org>
14 Thermal management is achieved in devicetree by describing the sensor hardware
15 and the software abstraction of cooling devices and thermal zones required to
16 take appropriate action to mitigate thermal overloads.
18 The following node types are used to completely describe a thermal management
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Dqcom-tsens.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR MIT)
4 ---
5 $id: http://devicetree.org/schemas/thermal/qcom-tsens.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Amit Kucheria <amitk@kernel.org>
22 - description: v0.1 of TSENS
24 - enum:
25 - qcom,msm8916-tsens
26 - qcom,msm8939-tsens
27 - qcom,msm8974-tsens
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Dthermal-sensor.yaml1 # SPDX-License-Identifier: (GPL-2.0)
4 ---
5 $id: http://devicetree.org/schemas/thermal/thermal-sensor.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Thermal sensor binding
11 - Amit Kucheria <amitk@kernel.org>
14 Thermal management is achieved in devicetree by describing the sensor hardware
15 and the software abstraction of thermal zones required to take appropriate
16 action to mitigate thermal overloads.
18 The following node types are used to completely describe a thermal management
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Dimx8mm-thermal.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/thermal/imx8mm-thermal.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: NXP i.MX8M Mini Thermal Binding
10 - Anson Huang <Anson.Huang@nxp.com>
17 2 sensors.
22 - enum:
23 - fsl,imx8mm-tmu
24 - fsl,imx8mp-tmu
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/kernel/linux/linux-5.10/drivers/thermal/st/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 # STMicroelectronics thermal drivers configuration
7 tristate "Thermal sensors on STMicroelectronics STi series of SoCs"
9 Support for thermal sensors on STMicroelectronics STi series of SoCs.
13 tristate "STi series syscfg register access based thermal sensors"
17 tristate "STi series memory mapped access based thermal sensors"
20 tristate "Thermal framework support on STMicroelectronics STM32 series of SoCs"
24 Support for thermal framework on STMicroelectronics STM32 series of
25 SoCs. This thermal driver allows to access to general thermal framework
/kernel/linux/linux-4.19/drivers/thermal/
Dmtk_thermal.c23 #include <linux/nvmem-consumer.h>
30 #include <linux/thermal.h>
42 /* Thermal Controller Registers */
89 /* MT8173 thermal sensors */
96 /* AUXADC channel 11 is used for the temperature sensors */
99 /* The total number of temperature sensors in the MT8173 */
111 * MT8173 has 5 sensors and needs 5 VTS calibration data.
112 * MT2701 has 3 sensors and needs 3 VTS calibration data.
113 * MT2712 has 4 sensors and needs 4 VTS calibration data.
127 /* MT2701 thermal sensors */
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DKconfig2 # Generic thermal sysfs drivers configuration
5 menuconfig THERMAL config
6 tristate "Generic Thermal sysfs driver"
8 Generic Thermal Sysfs driver offers a generic mechanism for
9 thermal management. Usually it's made up of one or more thermal
11 Each thermal zone contains its own temperature, trip points,
13 All platforms with ACPI thermal support can use this driver.
16 if THERMAL
19 bool "Thermal state transition statistics"
21 Export thermal state transition statistics information through sysfs.
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Drockchip_thermal.c2 * Copyright (c) 2014-2016, Fuzhou Rockchip Electronics Co., Ltd
3 * Caesar Wang <wxt@rock-chips.com>
26 #include <linux/thermal.h>
41 * The system Temperature Sensors tshut(tshut) polarity
51 * The system has two Temperature Sensors.
70 * The max sensors is two in rockchip SoCs.
71 * Two sensors: CPU and GPU sensor.
76 * struct chip_tsadc_table - hold information about chip-specific differences
90 * struct rockchip_tsadc_chip - hold the private data of tsadc chip
93 * @tshut_temp: the hardware-controlled shutdown temperature value
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/kernel/linux/linux-5.10/drivers/thermal/
Dmtk_thermal.c1 // SPDX-License-Identifier: GPL-2.0-only
15 #include <linux/nvmem-consumer.h>
22 #include <linux/thermal.h>
34 /* Thermal Controller Registers */
91 /* MT8173 thermal sensors */
98 /* AUXADC channel 11 is used for the temperature sensors */
101 /* The total number of temperature sensors in the MT8173 */
119 * MT8183 has 6 sensors and needs 6 VTS calibration data.
120 * MT8173 has 5 sensors and needs 5 VTS calibration data.
121 * MT2701 has 3 sensors and needs 3 VTS calibration data.
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Drockchip_thermal.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2014-2016, Fuzhou Rockchip Electronics Co., Ltd
4 * Caesar Wang <wxt@rock-chips.com>
18 #include <linux/thermal.h>
33 * The system Temperature Sensors tshut(tshut) polarity
43 * The system has two Temperature Sensors.
64 * The max sensors is two in rockchip SoCs.
65 * Two sensors: CPU and GPU sensor.
70 * struct chip_tsadc_table - hold information about chip-specific differences
84 * struct rockchip_tsadc_chip - hold the private data of tsadc chip
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/kernel/linux/linux-5.10/drivers/thermal/broadcom/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "Broadcom AVS RO thermal sensor driver"
7 Support for thermal sensors on Broadcom BCM2711 SoCs.
10 tristate "Thermal sensors on bcm2835 SoC"
15 Support for thermal sensors on Broadcom bcm2835 SoCs.
18 tristate "Broadcom STB AVS TMON thermal driver"
22 thermal framework support.
25 tristate "Northstar thermal driver"
31 Management Unit) block with a thermal sensor that allows checking CPU
35 tristate "Stingray thermal driver"
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/kernel/linux/linux-5.10/arch/arm64/boot/dts/ti/
Dk3-am654-industrial-thermal.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 #include <dt-bindings/thermal/thermal.h>
5 mpu0_thermal: mpu0-thermal {
6 polling-delay-passive = <250>; /* milliseconds */
7 polling-delay = <500>; /* milliseconds */
8 thermal-sensors = <&wkup_vtm0 0>;
11 mpu0_crit: mpu0-crit {
19 mpu1_thermal: mpu1-thermal {
20 polling-delay-passive = <250>; /* milliseconds */
21 polling-delay = <500>; /* milliseconds */
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/kernel/linux/linux-5.10/arch/arm64/boot/dts/qcom/
Dsm8150.dtsi1 // SPDX-License-Identifier: BSD-3-Clause
3 * Copyright (c) 2017-2019, The Linux Foundation. All rights reserved.
7 #include <dt-bindings/interrupt-controller/arm-gic.h>
8 #include <dt-bindings/power/qcom-aoss-qmp.h>
9 #include <dt-bindings/power/qcom-rpmpd.h>
10 #include <dt-bindings/soc/qcom,rpmh-rsc.h>
11 #include <dt-bindings/clock/qcom,rpmh.h>
12 #include <dt-bindings/clock/qcom,gcc-sm8150.h>
13 #include <dt-bindings/clock/qcom,gpucc-sm8150.h>
14 #include <dt-bindings/interconnect/qcom,osm-l3.h>
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/kernel/linux/linux-5.10/arch/arm/boot/dts/
Dexynos5422-odroidhc1.dts1 // SPDX-License-Identifier: GPL-2.0
10 /dts-v1/;
11 #include "exynos5422-odroid-core.dtsi"
15 compatible = "hardkernel,odroid-hc1", "samsung,exynos5800", \
19 compatible = "pwm-leds";
24 pwm-names = "pwm2";
25 max-brightness = <255>;
26 linux,default-trigger = "heartbeat";
30 thermal-zones {
31 cpu0_thermal: cpu0-thermal {
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/kernel/linux/linux-5.10/Documentation/devicetree/bindings/arm/
Darm,scpi.txt2 ----------------------------------------------------------
10 - compatible : should be
12 * "arm,scpi-pre-1.0" : For implementations complying to all
14 - mboxes: List of phandle and mailbox channel specifiers
17 - shmem : List of phandle pointing to the shared memory(SHM) area between the
27 ------------------------------------------------------------
34 - compatible : should be "arm,scpi-clocks"
36 protocol much be listed as sub-nodes under this node.
38 Sub-nodes
41 - compatible : shall include one of the following
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/kernel/linux/linux-4.19/Documentation/devicetree/bindings/arm/
Darm,scpi.txt2 ----------------------------------------------------------
10 - compatible : should be
12 * "arm,scpi-pre-1.0" : For implementations complying to all
14 - mboxes: List of phandle and mailbox channel specifiers
17 - shmem : List of phandle pointing to the shared memory(SHM) area between the
27 ------------------------------------------------------------
34 - compatible : should be "arm,scpi-clocks"
36 protocol much be listed as sub-nodes under this node.
38 Sub-nodes
41 - compatible : shall include one of the following
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/kernel/linux/linux-4.19/arch/arm/boot/dts/
Dexynos5422-odroidhc1.dts1 // SPDX-License-Identifier: GPL-2.0
10 /dts-v1/;
11 #include "exynos5422-odroid-core.dtsi"
15 compatible = "hardkernel,odroid-hc1", "samsung,exynos5800", \
19 compatible = "pwm-leds";
24 pwm-names = "pwm2";
26 linux,default-trigger = "heartbeat";
30 thermal-zones {
31 cpu0_thermal: cpu0-thermal {
32 thermal-sensors = <&tmu_cpu0 0>;
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/kernel/linux/linux-5.10/tools/thermal/tmon/
DREADME1 TMON - A Monitoring and Testing Tool for Linux kernel thermal subsystem
6 thermal relationship between processor and fan has become past for modern
9 As hardware vendors cope with the thermal constraints on their products, more
10 and more sensors are added, new cooling capabilities are introduced. The
11 complexity of the thermal relationship can grow exponentially among cooling
12 devices, zones, sensors, and trip points. They can also change dynamically.
14 To expose such relationship to the userspace, Linux generic thermal layer
15 introduced sysfs entry at /sys/class/thermal with a matrix of symbolic
18 thermal conditions are often exception cases that hard to reach in
22 complex thermal subsystem.
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/kernel/linux/linux-4.19/tools/thermal/tmon/
DREADME1 TMON - A Monitoring and Testing Tool for Linux kernel thermal subsystem
6 thermal relationship between processor and fan has become past for modern
9 As hardware vendors cope with the thermal constraints on their products, more
10 and more sensors are added, new cooling capabilities are introduced. The
11 complexity of the thermal relationship can grow exponentially among cooling
12 devices, zones, sensors, and trip points. They can also change dynamically.
14 To expose such relationship to the userspace, Linux generic thermal layer
15 introduced sysfs entry at /sys/class/thermal with a matrix of symbolic
18 thermal conditions are often exception cases that hard to reach in
22 complex thermal subsystem.
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/kernel/linux/linux-4.19/arch/arm64/boot/dts/exynos/
Dexynos5433-tmu.dtsi1 // SPDX-License-Identifier: GPL-2.0
3 * Device tree sources for Exynos5433 thermal zone
8 #include <dt-bindings/thermal/thermal.h>
11 thermal-zones {
12 atlas0_thermal: atlas0-thermal {
13 thermal-sensors = <&tmu_atlas0>;
14 polling-delay-passive = <0>;
15 polling-delay = <0>;
17 atlas0_alert_0: atlas0-alert-0 {
22 atlas0_alert_1: atlas0-alert-1 {
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