| /linux/Documentation/devicetree/bindings/thermal/ |
| H A D | thermal-zones.yaml | 1 # 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
11 - Daniel Lezcano <daniel.lezcano@linaro.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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| H A D | thermal-sensor.yaml | 1 # 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
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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| H A D | thermal-cooling-devices.yaml | 1 # SPDX-License-Identifier: (GPL-2.0)
4 ---
5 $id: http://devicetree.org/schemas/thermal/thermal-cooling-devices.yaml#
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
8 title: Thermal cooling device
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 overload.
18 The following node types are used to completely describe a thermal management
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| H A D | amazon,al-thermal.txt | 1 Amazon's Annapurna Labs Thermal Sensor
3 Simple thermal device that allows temperature reading by a single MMIO
7 - compatible: "amazon,al-thermal".
8 - reg: The physical base address and length of the sensor's registers.
9 - #thermal-sensor-cells: Must be 1. See Documentation/devicetree/bindings/thermal/thermal-sensor.ya…
12 thermal: thermal {
13 compatible = "amazon,al-thermal";
15 #thermal-sensor-cells = <0x1>;
18 thermal-zones {
19 thermal-z0 {
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| H A D | brcm,ns-thermal.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/thermal/brcm,ns-thermal.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Broadcom Northstar Thermal
10 - Rafał Miłecki <rafal@milecki.pl>
13 Thermal sensor that is part of Northstar's DMU (Device Management Unit).
16 - $ref: thermal-sensor.yaml#
20 const: brcm,ns-thermal
26 "#thermal-sensor-cells":
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| H A D | st,stm32-thermal.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/thermal/st,stm32-thermal.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: STMicroelectronics STM32 digital thermal sensor (DTS)
10 - Pascal Paillet <p.paillet@foss.st.com>
12 $ref: thermal-sensor.yaml#
16 const: st,stm32-thermal
27 clock-names:
29 - const: pclk
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| H A D | max77620_thermal.txt | 1 Thermal driver for MAX77620 Power management IC from Maxim Semiconductor.
10 -------------------
11 #thermal-sensor-cells: For more details, please refer to
12 <devicetree/bindings/thermal/thermal-sensor.yaml>
15 For more details, please refer generic thermal DT binding document
16 <devicetree/bindings/thermal/thermal*.yaml>.
22 --------
23 #include <dt-bindings/mfd/max77620.h>
24 #include <dt-bindings/thermal/thermal.h>
31 #thermal-sensor-cells = <0>;
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| H A D | rzg2l-thermal.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/thermal/rzg2l-thermal.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Renesas RZ/G2L Thermal Sensor Unit
10 On RZ/G2L SoCs, the thermal sensor unit (TSU) measures the
14 - Biju Das <biju.das.jz@bp.renesas.com>
16 $ref: thermal-sensor.yaml#
21 - enum:
22 - renesas,r9a07g043-tsu # RZ/G2UL and RZ/Five
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| H A D | brcm,sr-thermal.txt | 1 * 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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| /linux/tools/thermal/thermometer/ |
| H A D | thermometer.8 | 2 # SPDX-License-Identifier: GPL-2.0
4 \fBthermometer\fP - A thermal profiling tool
13 \fBthermometer \fP captures the thermal zones temperature at a
21 If no configuration file is specified, then all the thermal zones will
23 the thermal zone names and the desired sampling period. A thermal zone
24 name can be a regular expression to specify a group of thermal zone.
26 The sampling of the different thermal zones will be written into
27 separate files with the thermal zone name. It is possible to specify a
31 Without any parameters, \fBthermometer \fP captures all the thermal
44 The \fB-h, --help\fP option shows a short usage help
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| /linux/drivers/thermal/tegra/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
2 menu "NVIDIA Tegra thermal drivers"
6 tristate "Tegra SOCTHERM thermal management"
8 Enable this option for integrated thermal management support on NVIDIA
9 Tegra systems-on-chip. The driver supports four thermal zones
10 (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal
11 zones to manage temperatures. This option is also required for the
12 emergency thermal reset (thermtrip) feature to function.
15 tristate "Tegra BPMP thermal sensing"
19 Tegra systems-on-chip with the BPMP coprocessor (Tegra186).
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| H A D | tegra-bpmp-thermal.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * Copyright (c) 2015-2017, NVIDIA CORPORATION. All rights reserved.
13 #include <linux/thermal.h>
17 #include <soc/tegra/bpmp-abi.h>
30 struct tegra_bpmp_thermal_zone **zones; member
43 req.get_temp.zone = zone->idx; in __tegra_bpmp_thermal_get_temp()
52 err = tegra_bpmp_transfer(zone->tegra->bpmp, &msg); in __tegra_bpmp_thermal_get_temp()
55 if (msg.rx.ret == -BPMP_EFAULT) in __tegra_bpmp_thermal_get_temp()
56 return -EAGAIN; in __tegra_bpmp_thermal_get_temp()
58 return -EINVAL; in __tegra_bpmp_thermal_get_temp()
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| /linux/drivers/thermal/intel/ |
| H A D | x86_pkg_temp_thermal.c | 1 // SPDX-License-Identifier: GPL-2.0-only
19 #include <linux/thermal.h>
42 /* Number of trip points in thermal zone. Currently it can't
66 static struct zone_device **zones; variable
93 * - cpu hotplug: Read serialized by cpu hotplug lock
96 * - Other callsites: Must hold pkg_temp_lock
103 return zones[id]; in pkg_temp_thermal_get_dev()
112 ret = intel_tcc_get_temp(zonedev->cpu, &val, true); in sys_get_curr_temp()
126 unsigned int trip_index = THERMAL_TRIP_PRIV_TO_INT(trip->priv); in sys_set_trip_temp()
130 tj_max = intel_tcc_get_tjmax(zonedev->cpu); in sys_set_trip_temp()
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| /linux/drivers/thermal/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 # Generic thermal drivers configuration
6 menuconfig THERMAL config
7 bool "Thermal drivers"
9 Thermal drivers offer a generic mechanism for
10 thermal management. Usually it's made up of one or more thermal
11 zones and cooling devices.
12 Each thermal zone contains its own temperature, trip points,
14 All platforms with ACPI or Open Firmware thermal support can use
18 if THERMAL
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| H A D | thermal_of.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * of-thermal.c - Generic Thermal Management device tree support.
15 #include <linux/thermal.h>
24 * It maps 'enum thermal_trip_type' found in include/linux/thermal.h
35 * thermal_of_get_trip_type - Get phy mode for given device_node
60 return -ENODEV; in thermal_of_get_trip_type()
74 trip->temperature = prop; in thermal_of_populate_trip()
81 trip->hysteresis = prop; in thermal_of_populate_trip()
83 ret = thermal_of_get_trip_type(np, &trip->type); in thermal_of_populate_trip()
89 trip->flags = THERMAL_TRIP_FLAG_RW_TEMP; in thermal_of_populate_trip()
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| /linux/tools/thermal/tmon/ |
| H A D | sysfs.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
36 int ret = -1; in sysfs_set_ulong()
52 /* history of thermal data, used for control algo */
60 int ret = -1; in sysfs_get_ulong()
79 int ret = -1; in sysfs_get_string()
98 sysfs_get_string(path, "type", cdi->type); in probe_cdev()
99 sysfs_get_ulong(path, "max_state", &cdi->max_state); in probe_cdev()
100 sysfs_get_ulong(path, "cur_state", &cdi->cur_state); in probe_cdev()
104 cdi->type, cdi->max_state, cdi->cur_state, cdi->instance); in probe_cdev()
118 return -ENOENT; in str_to_trip_type()
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| H A D | README | 1 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
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.
28 sysfs.c : access to the generic thermal sysfs
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| /linux/arch/arm64/boot/dts/ti/ |
| H A D | k3-am64-thermal.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
3 * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
6 #include <dt-bindings/thermal/thermal.h>
8 thermal_zones: thermal-zones {
9 main0_thermal: main0-thermal {
10 polling-delay-passive = <250>; /* milliSeconds */
11 polling-delay = <500>; /* milliSeconds */
12 thermal-sensors = <&main_vtm0 0>;
15 main0_crit: main0-crit {
23 main1_thermal: main1-thermal {
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| H A D | k3-am62a-thermal.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
3 * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
6 #include <dt-bindings/thermal/thermal.h>
8 thermal_zones: thermal-zones {
9 main0_thermal: main0-thermal {
10 polling-delay-passive = <250>; /* milliSeconds */
11 polling-delay = <500>; /* milliSeconds */
12 thermal-sensors = <&wkup_vtm0 0>;
15 main0_crit: main0-crit {
23 main1_thermal: main1-thermal {
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| H A D | k3-j7200-thermal.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
3 * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
6 #include <dt-bindings/thermal/thermal.h>
8 thermal_zones: thermal-zones {
9 mcu_thermal: mcu-thermal {
10 polling-delay-passive = <250>; /* milliseconds */
11 polling-delay = <500>; /* milliseconds */
12 thermal-sensors = <&wkup_vtm0 0>;
15 wkup_crit: wkup-crit {
23 mpu_thermal: mpu-thermal {
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| H A D | k3-am62p-j722s-common-thermal.dtsi | 1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
3 * Copyright (C) 2023-2024 Texas Instruments Incorporated - https://www.ti.com/
6 #include <dt-bindings/thermal/thermal.h>
8 thermal_zones: thermal-zones {
9 main0_thermal: main0-thermal {
10 polling-delay-passive = <250>; /* milliSeconds */
11 polling-delay = <500>; /* milliSeconds */
12 thermal-sensors = <&wkup_vtm0 0>;
15 main0_crit: main0-crit {
23 main1_thermal: main1-thermal {
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| /linux/arch/arm64/boot/dts/qcom/ |
| H A D | sdm632.dtsi | 1 // SPDX-License-Identifier: BSD-3-Clause
7 thermal-zones {
8 /delete-node/cpu1-thermal;
9 /delete-node/cpu2-thermal;
10 /delete-node/cpu3-thermal;
12 cpu0-thermal {
13 thermal-sensors = <&tsens0 13>;
15 cooling-maps {
17 cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
25 cpu4-thermal {
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| /linux/arch/arm/boot/dts/samsung/ |
| H A D | exynos4-cpu-thermal.dtsi | 1 // SPDX-License-Identifier: GPL-2.0
3 * Device tree sources for Exynos4 thermal zone
8 #include <dt-bindings/thermal/thermal.h>
11 thermal-zones {
12 cpu_thermal: cpu-thermal {
13 thermal-sensors = <&tmu>;
14 polling-delay-passive = <0>;
15 polling-delay = <0>;
17 cpu_alert0: cpu-alert-0 {
22 cpu_alert1: cpu-alert-1 {
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| /linux/include/uapi/linux/ |
| H A D | thermal.h | 1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
20 #define THERMAL_GENL_FAMILY_NAME "thermal"
53 #define THERMAL_GENL_ATTR_MAX (__THERMAL_GENL_ATTR_MAX - 1)
59 #define THERMAL_GENL_SAMPLING_MAX (__THERMAL_GENL_SAMPLING_MAX - 1)
64 THERMAL_GENL_EVENT_TZ_CREATE, /* Thermal zone creation */
65 THERMAL_GENL_EVENT_TZ_DELETE, /* Thermal zone deletion */
66 THERMAL_GENL_EVENT_TZ_DISABLE, /* Thermal zone disabled */
67 THERMAL_GENL_EVENT_TZ_ENABLE, /* Thermal zone enabled */
73 THERMAL_GENL_EVENT_CDEV_ADD, /* Cdev bound to the thermal zone */
80 #define THERMAL_GENL_EVENT_MAX (__THERMAL_GENL_EVENT_MAX - 1)
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| /linux/Documentation/devicetree/bindings/display/ |
| H A D | repaper.txt | 1 Pervasive Displays RePaper branded e-ink displays
4 - compatible: "pervasive,e1144cs021" for 1.44" display
9 - panel-on-gpios: Timing controller power control
10 - discharge-gpios: Discharge control
11 - reset-gpios: RESET pin
12 - busy-gpios: BUSY pin
15 - border-gpios: Border control
18 all mandatory properties described in ../spi/spi-bus.txt must be specified.
21 - pervasive,thermal-zone: name of thermometer's thermal zone
28 #thermal-sensor-cells = <0>;
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