1 # SPDX-License-Identifier: GPL-2.0-only
3 # Generic thermal drivers configuration
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
16 If you want this support, you should say Y here.
20 config THERMAL_NETLINK
21 bool "Thermal netlink management"
25 The thermal framework has a netlink interface to do thermal
26 zones discovery, temperature readings and events such as
27 trip point crossed, cooling device update or governor
28 change. It is recommended to enable the feature.
30 config THERMAL_STATISTICS
31 bool "Thermal state transition statistics"
33 Export thermal state transition statistics information through sysfs.
37 config THERMAL_EMERGENCY_POWEROFF_DELAY_MS
38 int "Emergency poweroff delay in milli-seconds"
41 Thermal subsystem will issue a graceful shutdown when
42 critical temperatures are reached using orderly_poweroff(). In
43 case of failure of an orderly_poweroff(), the thermal emergency
44 poweroff kicks in after a delay has elapsed and shuts down the system.
45 This config is number of milliseconds to delay before emergency
46 poweroff kicks in. Similarly to the critical trip point,
47 the delay should be carefully profiled so as to give adequate
48 time for orderly_poweroff() to finish on regular execution.
49 If set to 0 emergency poweroff will not be supported.
55 prompt "Expose thermal sensors as hwmon device"
56 depends on HWMON=y || HWMON=THERMAL
59 In case a sensor is registered with the thermal
60 framework, this option will also register it
61 as a hwmon. The sensor will then have the common
62 hwmon sysfs interface.
64 Say 'Y' here if you want all thermal sensors to
65 have hwmon sysfs interface too.
69 prompt "APIs to parse thermal data out of device tree"
73 This options provides helpers to add the support to
74 read and parse thermal data definitions out of the
77 Say 'Y' here if you need to build thermal infrastructure
80 config THERMAL_WRITABLE_TRIPS
81 bool "Enable writable trip points"
83 This option allows the system integrator to choose whether
84 trip temperatures can be changed from userspace. The
85 writable trips need to be specified when setting up the
86 thermal zone but the choice here takes precedence.
88 Say 'Y' here if you would like to allow userspace tools to
89 change trip temperatures.
92 prompt "Default Thermal governor"
93 default THERMAL_DEFAULT_GOV_STEP_WISE
95 This option sets which thermal governor shall be loaded at
96 startup. If in doubt, select 'step_wise'.
98 config THERMAL_DEFAULT_GOV_STEP_WISE
100 select THERMAL_GOV_STEP_WISE
102 Use the step_wise governor as default. This throttles the
103 devices one step at a time.
105 config THERMAL_DEFAULT_GOV_FAIR_SHARE
107 select THERMAL_GOV_FAIR_SHARE
109 Use the fair_share governor as default. This throttles the
110 devices based on their 'contribution' to a zone. The
111 contribution should be provided through platform data.
113 config THERMAL_DEFAULT_GOV_USER_SPACE
115 select THERMAL_GOV_USER_SPACE
117 Select this if you want to let the user space manage the
120 config THERMAL_DEFAULT_GOV_POWER_ALLOCATOR
121 bool "power_allocator"
122 depends on THERMAL_GOV_POWER_ALLOCATOR
124 Select this if you want to control temperature based on
125 system and device power allocation. This governor can only
126 operate on cooling devices that implement the power API.
130 config THERMAL_GOV_FAIR_SHARE
131 bool "Fair-share thermal governor"
133 Enable this to manage platform thermals using fair-share governor.
135 config THERMAL_GOV_STEP_WISE
136 bool "Step_wise thermal governor"
138 Enable this to manage platform thermals using a simple linear
141 config THERMAL_GOV_BANG_BANG
142 bool "Bang Bang thermal governor"
145 Enable this to manage platform thermals using bang bang governor.
147 Say 'Y' here if you want to use two point temperature regulation
148 used for fans without throttling. Some fan drivers depend on this
149 governor to be enabled (e.g. acerhdf).
151 config THERMAL_GOV_USER_SPACE
152 bool "User_space thermal governor"
154 Enable this to let the user space manage the platform thermals.
156 config THERMAL_GOV_POWER_ALLOCATOR
157 bool "Power allocator thermal governor"
158 depends on ENERGY_MODEL
160 Enable this to manage platform thermals by dynamically
161 allocating and limiting power to devices.
164 bool "Generic cpu cooling support"
165 depends on THERMAL_OF
167 Enable the CPU cooling features. If the system has no active
168 cooling device available, this option allows to use the CPU
173 config CPU_FREQ_THERMAL
174 bool "CPU frequency cooling device"
178 This implements the generic cpu cooling mechanism through frequency
179 reduction. An ACPI version of this already exists
180 (drivers/acpi/processor_thermal.c).
181 This will be useful for platforms using the generic thermal interface
182 and not the ACPI interface.
184 config CPU_IDLE_THERMAL
185 bool "CPU idle cooling device"
186 depends on IDLE_INJECT
188 This implements the CPU cooling mechanism through
189 idle injection. This will throttle the CPU by injecting
193 config DEVFREQ_THERMAL
194 bool "Generic device cooling support"
195 depends on PM_DEVFREQ
198 This implements the generic devfreq cooling mechanism through
199 frequency reduction for devices using devfreq.
201 This will throttle the device by limiting the maximum allowed DVFS
202 frequency corresponding to the cooling level.
204 In order to use the power extensions of the cooling device,
205 devfreq should use the simple_ondemand governor.
207 If you want this support, you should say Y here.
209 config THERMAL_EMULATION
210 bool "Thermal emulation mode support"
212 Enable this option to make a emul_temp sysfs node in thermal zone
213 directory to support temperature emulation. With emulation sysfs node,
214 user can manually input temperature and test the different trip
215 threshold behaviour for simulation purpose.
217 WARNING: Be careful while enabling this option on production systems,
218 because userland can easily disable the thermal policy by simply
219 flooding this sysfs node with low temperature values.
222 tristate "Generic Thermal MMIO driver"
223 depends on OF || COMPILE_TEST
226 This option enables the generic thermal MMIO driver that will use
227 memory-mapped reads to get the temperature. Any HW/System that
228 allows temperature reading by a single memory-mapped reading, be it
229 register or shared memory, is a potential candidate to work with this
233 tristate "Hisilicon thermal driver"
234 depends on ARCH_HISI || COMPILE_TEST
239 Enable this to plug hisilicon's thermal sensor driver into the Linux
240 thermal framework. cpufreq is used as the cooling device to throttle
241 CPUs when the passive trip is crossed.
244 tristate "Temperature sensor driver for Freescale i.MX SoCs"
245 depends on ARCH_MXC || COMPILE_TEST
246 depends on NVMEM || !NVMEM
247 depends on MFD_SYSCON
250 Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs.
251 It supports one critical trip point and one passive trip point. The
252 cpufreq is used as the cooling device to throttle CPUs when the
253 passive trip is crossed.
255 config IMX_SC_THERMAL
256 tristate "Temperature sensor driver for NXP i.MX SoCs with System Controller"
260 Support for Temperature Monitor (TEMPMON) found on NXP i.MX SoCs with
261 system controller inside, Linux kernel has to communicate with system
262 controller via MU (message unit) IPC to get temperature from thermal
263 sensor. It supports one critical trip point and one
264 passive trip point for each thermal sensor.
266 config IMX8MM_THERMAL
267 tristate "Temperature sensor driver for Freescale i.MX8MM SoC"
268 depends on ARCH_MXC || COMPILE_TEST
271 Support for Thermal Monitoring Unit (TMU) found on Freescale i.MX8MM SoC.
272 It supports one critical trip point and one passive trip point. The
273 cpufreq is used as the cooling device to throttle CPUs when the passive
277 tristate "Texas Instruments K3 thermal support"
278 depends on ARCH_K3 || COMPILE_TEST
280 If you say yes here you get thermal support for the Texas Instruments
281 K3 SoC family. The current chip supported is:
284 This includes temperature reading functionality.
286 config MAX77620_THERMAL
287 tristate "Temperature sensor driver for Maxim MAX77620 PMIC"
288 depends on MFD_MAX77620
291 Support for die junction temperature warning alarm for Maxim
292 Semiconductor PMIC MAX77620 device. Device generates two alarm
293 interrupts when PMIC die temperature cross the threshold of
294 120 degC and 140 degC.
297 tristate "QorIQ Thermal Monitoring Unit"
298 depends on THERMAL_OF && HAS_IOMEM
299 depends on PPC_E500MC || SOC_LS1021A || ARCH_LAYERSCAPE || (ARCH_MXC && ARM64) || COMPILE_TEST
302 Support for Thermal Monitoring Unit (TMU) found on QorIQ platforms.
303 It supports one critical trip point and one passive trip point. The
304 cpufreq is used as the cooling device to throttle CPUs when the
305 passive trip is crossed.
308 tristate "SPEAr thermal sensor driver"
309 depends on PLAT_SPEAR || COMPILE_TEST
313 Enable this to plug the SPEAr thermal sensor driver into the Linux
317 tristate "Allwinner sun8i thermal driver"
318 depends on ARCH_SUNXI || COMPILE_TEST
322 depends on RESET_CONTROLLER
324 Support for the sun8i thermal sensor driver into the Linux thermal
327 To compile this driver as a module, choose M here: the
328 module will be called sun8i-thermal.
330 config ROCKCHIP_THERMAL
331 tristate "Rockchip thermal driver"
332 depends on ARCH_ROCKCHIP || COMPILE_TEST
333 depends on RESET_CONTROLLER
336 Rockchip thermal driver provides support for Temperature sensor
337 ADC (TS-ADC) found on Rockchip SoCs. It supports one critical
338 trip point. Cpufreq is used as the cooling device and will throttle
339 CPUs when the Temperature crosses the passive trip point.
342 tristate "Renesas R-Car thermal driver"
343 depends on ARCH_RENESAS || COMPILE_TEST
346 Enable this to plug the R-Car thermal sensor driver into the Linux
349 config RCAR_GEN3_THERMAL
350 tristate "Renesas R-Car Gen3 thermal driver"
351 depends on ARCH_RENESAS || COMPILE_TEST
355 Enable this to plug the R-Car Gen3 thermal sensor driver into the Linux
358 config KIRKWOOD_THERMAL
359 tristate "Temperature sensor on Marvell Kirkwood SoCs"
360 depends on MACH_KIRKWOOD || COMPILE_TEST
364 Support for the Kirkwood thermal sensor driver into the Linux thermal
365 framework. Only kirkwood 88F6282 and 88F6283 have this sensor.
368 tristate "Temperature sensor on Marvell Dove SoCs"
369 depends on ARCH_DOVE || MACH_DOVE || COMPILE_TEST
373 Support for the Dove thermal sensor driver in the Linux thermal
376 config DB8500_THERMAL
377 tristate "DB8500 thermal management"
378 depends on MFD_DB8500_PRCMU && OF
381 Adds DB8500 thermal management implementation according to the thermal
382 management framework. A thermal zone with several trip points will be
383 created. Cooling devices can be bound to the trip points to cool this
384 thermal zone if trip points reached.
386 config ARMADA_THERMAL
387 tristate "Marvell EBU Armada SoCs thermal management"
388 depends on ARCH_MVEBU || COMPILE_TEST
392 Enable this option if you want to have support for thermal management
393 controller present in Marvell EBU Armada SoCs (370,375,XP,38x,7K,8K).
395 config DA9062_THERMAL
396 tristate "DA9062/DA9061 Dialog Semiconductor thermal driver"
397 depends on MFD_DA9062 || COMPILE_TEST
400 Enable this for the Dialog Semiconductor thermal sensor driver.
401 This will report PMIC junction over-temperature for one thermal trip
403 Compatible with the DA9062 and DA9061 PMICs.
406 tristate "Temperature sensor driver for mediatek SoCs"
407 depends on ARCH_MEDIATEK || COMPILE_TEST
409 depends on NVMEM || NVMEM=n
410 depends on RESET_CONTROLLER
413 Enable this option if you want to have support for thermal management
414 controller present in Mediatek SoCs
416 config AMLOGIC_THERMAL
417 tristate "Amlogic Thermal Support"
419 depends on OF && ARCH_MESON
421 If you say yes here you get support for Amlogic Thermal
424 This driver can also be built as a module. If so, the module will
425 be called amlogic_thermal.
427 menu "Intel thermal drivers"
428 depends on X86 || X86_INTEL_QUARK || COMPILE_TEST
429 source "drivers/thermal/intel/Kconfig"
432 menu "Broadcom thermal drivers"
433 depends on ARCH_BCM || ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCM_IPROC || \
435 source "drivers/thermal/broadcom/Kconfig"
438 menu "Texas Instruments thermal drivers"
439 depends on ARCH_HAS_BANDGAP || COMPILE_TEST
441 source "drivers/thermal/ti-soc-thermal/Kconfig"
444 menu "Samsung thermal drivers"
445 depends on ARCH_EXYNOS || COMPILE_TEST
446 source "drivers/thermal/samsung/Kconfig"
449 menu "STMicroelectronics thermal drivers"
450 depends on (ARCH_STI || ARCH_STM32) && OF
451 source "drivers/thermal/st/Kconfig"
455 tristate "Tango thermal management"
456 depends on ARCH_TANGO || COMPILE_TEST
458 Enable the Tango thermal driver, which supports the primitive
459 temperature sensor embedded in Tango chips since the SMP8758.
460 This sensor only generates a 1-bit signal to indicate whether
461 the die temperature exceeds a programmable threshold.
463 source "drivers/thermal/tegra/Kconfig"
465 config GENERIC_ADC_THERMAL
466 tristate "Generic ADC based thermal sensor"
469 This enabled a thermal sysfs driver for the temperature sensor
470 which is connected to the General Purpose ADC. The ADC channel
471 is read via IIO framework and the channel information is provided
472 to this driver. This driver reports the temperature by reading ADC
473 channel and converts it to temperature based on lookup table.
475 menu "Qualcomm thermal drivers"
476 depends on (ARCH_QCOM && OF) || COMPILE_TEST
477 source "drivers/thermal/qcom/Kconfig"
480 config ZX2967_THERMAL
481 tristate "Thermal sensors on zx2967 SoC"
482 depends on ARCH_ZX || COMPILE_TEST
484 Enable the zx2967 thermal sensors driver, which supports
485 the primitive temperature sensor embedded in zx2967 SoCs.
486 This sensor generates the real time die temperature.
488 config UNIPHIER_THERMAL
489 tristate "Socionext UniPhier thermal driver"
490 depends on ARCH_UNIPHIER || COMPILE_TEST
491 depends on THERMAL_OF && MFD_SYSCON
493 Enable this to plug in UniPhier on-chip PVT thermal driver into the
494 thermal framework. The driver supports CPU thermal zone temperature
495 reporting and a couple of trip points.
498 tristate "Temperature sensor on Spreadtrum SoCs"
499 depends on ARCH_SPRD || COMPILE_TEST
501 Support for the Spreadtrum thermal sensor driver in the Linux thermal