1 # SPDX-License-Identifier: GPL-2.0-only
3 # Generic thermal sysfs drivers configuration
7 bool "Generic Thermal sysfs driver"
9 Generic Thermal Sysfs driver offers a generic mechanism for
10 thermal management. Usually it's made up of one or more thermal
11 zone and cooling device.
12 Each thermal zone contains its own temperature, trip points,
14 All platforms with ACPI thermal support can use this driver.
15 If you want this support, you should say Y here.
19 config THERMAL_STATISTICS
20 bool "Thermal state transition statistics"
22 Export thermal state transition statistics information through sysfs.
26 config THERMAL_EMERGENCY_POWEROFF_DELAY_MS
27 int "Emergency poweroff delay in milli-seconds"
30 Thermal subsystem will issue a graceful shutdown when
31 critical temperatures are reached using orderly_poweroff(). In
32 case of failure of an orderly_poweroff(), the thermal emergency
33 poweroff kicks in after a delay has elapsed and shuts down the system.
34 This config is number of milliseconds to delay before emergency
35 poweroff kicks in. Similarly to the critical trip point,
36 the delay should be carefully profiled so as to give adequate
37 time for orderly_poweroff() to finish on regular execution.
38 If set to 0 emergency poweroff will not be supported.
44 prompt "Expose thermal sensors as hwmon device"
45 depends on HWMON=y || HWMON=THERMAL
48 In case a sensor is registered with the thermal
49 framework, this option will also register it
50 as a hwmon. The sensor will then have the common
51 hwmon sysfs interface.
53 Say 'Y' here if you want all thermal sensors to
54 have hwmon sysfs interface too.
58 prompt "APIs to parse thermal data out of device tree"
62 This options provides helpers to add the support to
63 read and parse thermal data definitions out of the
66 Say 'Y' here if you need to build thermal infrastructure
69 config THERMAL_WRITABLE_TRIPS
70 bool "Enable writable trip points"
72 This option allows the system integrator to choose whether
73 trip temperatures can be changed from userspace. The
74 writable trips need to be specified when setting up the
75 thermal zone but the choice here takes precedence.
77 Say 'Y' here if you would like to allow userspace tools to
78 change trip temperatures.
81 prompt "Default Thermal governor"
82 default THERMAL_DEFAULT_GOV_STEP_WISE
84 This option sets which thermal governor shall be loaded at
85 startup. If in doubt, select 'step_wise'.
87 config THERMAL_DEFAULT_GOV_STEP_WISE
89 select THERMAL_GOV_STEP_WISE
91 Use the step_wise governor as default. This throttles the
92 devices one step at a time.
94 config THERMAL_DEFAULT_GOV_FAIR_SHARE
96 select THERMAL_GOV_FAIR_SHARE
98 Use the fair_share governor as default. This throttles the
99 devices based on their 'contribution' to a zone. The
100 contribution should be provided through platform data.
102 config THERMAL_DEFAULT_GOV_USER_SPACE
104 select THERMAL_GOV_USER_SPACE
106 Select this if you want to let the user space manage the
109 config THERMAL_DEFAULT_GOV_POWER_ALLOCATOR
110 bool "power_allocator"
111 depends on THERMAL_GOV_POWER_ALLOCATOR
113 Select this if you want to control temperature based on
114 system and device power allocation. This governor can only
115 operate on cooling devices that implement the power API.
119 config THERMAL_GOV_FAIR_SHARE
120 bool "Fair-share thermal governor"
122 Enable this to manage platform thermals using fair-share governor.
124 config THERMAL_GOV_STEP_WISE
125 bool "Step_wise thermal governor"
127 Enable this to manage platform thermals using a simple linear
130 config THERMAL_GOV_BANG_BANG
131 bool "Bang Bang thermal governor"
134 Enable this to manage platform thermals using bang bang governor.
136 Say 'Y' here if you want to use two point temperature regulation
137 used for fans without throttling. Some fan drivers depend on this
138 governor to be enabled (e.g. acerhdf).
140 config THERMAL_GOV_USER_SPACE
141 bool "User_space thermal governor"
143 Enable this to let the user space manage the platform thermals.
145 config THERMAL_GOV_POWER_ALLOCATOR
146 bool "Power allocator thermal governor"
147 depends on ENERGY_MODEL
149 Enable this to manage platform thermals by dynamically
150 allocating and limiting power to devices.
153 bool "Generic cpu cooling support"
154 depends on THERMAL_OF
156 Enable the CPU cooling features. If the system has no active
157 cooling device available, this option allows to use the CPU
162 config CPU_FREQ_THERMAL
163 bool "CPU frequency cooling device"
167 This implements the generic cpu cooling mechanism through frequency
168 reduction. An ACPI version of this already exists
169 (drivers/acpi/processor_thermal.c).
170 This will be useful for platforms using the generic thermal interface
171 and not the ACPI interface.
173 config CPU_IDLE_THERMAL
174 bool "CPU idle cooling device"
175 depends on IDLE_INJECT
177 This implements the CPU cooling mechanism through
178 idle injection. This will throttle the CPU by injecting
183 bool "Generic clock cooling support"
184 depends on COMMON_CLK
187 This entry implements the generic clock cooling mechanism through
188 frequency clipping. Typically used to cool off co-processors. The
189 device that is configured to use this cooling mechanism will be
190 controlled to reduce clock frequency whenever temperature is high.
192 config DEVFREQ_THERMAL
193 bool "Generic device cooling support"
194 depends on PM_DEVFREQ
197 This implements the generic devfreq cooling mechanism through
198 frequency reduction for devices using devfreq.
200 This will throttle the device by limiting the maximum allowed DVFS
201 frequency corresponding to the cooling level.
203 In order to use the power extensions of the cooling device,
204 devfreq should use the simple_ondemand governor.
206 If you want this support, you should say Y here.
208 config THERMAL_EMULATION
209 bool "Thermal emulation mode support"
211 Enable this option to make a emul_temp sysfs node in thermal zone
212 directory to support temperature emulation. With emulation sysfs node,
213 user can manually input temperature and test the different trip
214 threshold behaviour for simulation purpose.
216 WARNING: Be careful while enabling this option on production systems,
217 because userland can easily disable the thermal policy by simply
218 flooding this sysfs node with low temperature values.
221 tristate "Generic Thermal MMIO driver"
222 depends on OF || COMPILE_TEST
225 This option enables the generic thermal MMIO driver that will use
226 memory-mapped reads to get the temperature. Any HW/System that
227 allows temperature reading by a single memory-mapped reading, be it
228 register or shared memory, is a potential candidate to work with this
232 tristate "Hisilicon thermal driver"
233 depends on ARCH_HISI || COMPILE_TEST
238 Enable this to plug hisilicon's thermal sensor driver into the Linux
239 thermal framework. cpufreq is used as the cooling device to throttle
240 CPUs when the passive trip is crossed.
243 tristate "Temperature sensor driver for Freescale i.MX SoCs"
244 depends on ARCH_MXC || COMPILE_TEST
245 depends on NVMEM || !NVMEM
246 depends on MFD_SYSCON
249 Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs.
250 It supports one critical trip point and one passive trip point. The
251 cpufreq is used as the cooling device to throttle CPUs when the
252 passive trip is crossed.
254 config MAX77620_THERMAL
255 tristate "Temperature sensor driver for Maxim MAX77620 PMIC"
256 depends on MFD_MAX77620
259 Support for die junction temperature warning alarm for Maxim
260 Semiconductor PMIC MAX77620 device. Device generates two alarm
261 interrupts when PMIC die temperature cross the threshold of
262 120 degC and 140 degC.
265 tristate "QorIQ Thermal Monitoring Unit"
266 depends on THERMAL_OF
269 Support for Thermal Monitoring Unit (TMU) found on QorIQ platforms.
270 It supports one critical trip point and one passive trip point. The
271 cpufreq is used as the cooling device to throttle CPUs when the
272 passive trip is crossed.
275 tristate "SPEAr thermal sensor driver"
276 depends on PLAT_SPEAR || COMPILE_TEST
280 Enable this to plug the SPEAr thermal sensor driver into the Linux
284 tristate "Allwinner sun8i thermal driver"
285 depends on ARCH_SUNXI || COMPILE_TEST
289 depends on RESET_CONTROLLER
291 Support for the sun8i thermal sensor driver into the Linux thermal
294 To compile this driver as a module, choose M here: the
295 module will be called sun8i-thermal.
297 config ROCKCHIP_THERMAL
298 tristate "Rockchip thermal driver"
299 depends on ARCH_ROCKCHIP || COMPILE_TEST
300 depends on RESET_CONTROLLER
303 Rockchip thermal driver provides support for Temperature sensor
304 ADC (TS-ADC) found on Rockchip SoCs. It supports one critical
305 trip point. Cpufreq is used as the cooling device and will throttle
306 CPUs when the Temperature crosses the passive trip point.
309 tristate "Renesas R-Car thermal driver"
310 depends on ARCH_RENESAS || COMPILE_TEST
313 Enable this to plug the R-Car thermal sensor driver into the Linux
316 config RCAR_GEN3_THERMAL
317 tristate "Renesas R-Car Gen3 thermal driver"
318 depends on ARCH_RENESAS || COMPILE_TEST
322 Enable this to plug the R-Car Gen3 thermal sensor driver into the Linux
325 config KIRKWOOD_THERMAL
326 tristate "Temperature sensor on Marvell Kirkwood SoCs"
327 depends on MACH_KIRKWOOD || COMPILE_TEST
331 Support for the Kirkwood thermal sensor driver into the Linux thermal
332 framework. Only kirkwood 88F6282 and 88F6283 have this sensor.
335 tristate "Temperature sensor on Marvell Dove SoCs"
336 depends on ARCH_DOVE || MACH_DOVE || COMPILE_TEST
340 Support for the Dove thermal sensor driver in the Linux thermal
343 config DB8500_THERMAL
344 tristate "DB8500 thermal management"
345 depends on MFD_DB8500_PRCMU && OF
348 Adds DB8500 thermal management implementation according to the thermal
349 management framework. A thermal zone with several trip points will be
350 created. Cooling devices can be bound to the trip points to cool this
351 thermal zone if trip points reached.
353 config ARMADA_THERMAL
354 tristate "Marvell EBU Armada SoCs thermal management"
355 depends on ARCH_MVEBU || COMPILE_TEST
359 Enable this option if you want to have support for thermal management
360 controller present in Marvell EBU Armada SoCs (370,375,XP,38x,7K,8K).
362 config DA9062_THERMAL
363 tristate "DA9062/DA9061 Dialog Semiconductor thermal driver"
364 depends on MFD_DA9062 || COMPILE_TEST
367 Enable this for the Dialog Semiconductor thermal sensor driver.
368 This will report PMIC junction over-temperature for one thermal trip
370 Compatible with the DA9062 and DA9061 PMICs.
373 tristate "Temperature sensor driver for mediatek SoCs"
374 depends on ARCH_MEDIATEK || COMPILE_TEST
376 depends on NVMEM || NVMEM=n
377 depends on RESET_CONTROLLER
380 Enable this option if you want to have support for thermal management
381 controller present in Mediatek SoCs
383 config AMLOGIC_THERMAL
384 tristate "Amlogic Thermal Support"
386 depends on OF && ARCH_MESON
388 If you say yes here you get support for Amlogic Thermal
391 This driver can also be built as a module. If so, the module will
392 be called amlogic_thermal.
394 menu "Intel thermal drivers"
395 depends on X86 || X86_INTEL_QUARK || COMPILE_TEST
396 source "drivers/thermal/intel/Kconfig"
399 menu "Broadcom thermal drivers"
400 depends on ARCH_BCM || ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCM_IPROC || \
402 source "drivers/thermal/broadcom/Kconfig"
405 menu "Texas Instruments thermal drivers"
406 depends on ARCH_HAS_BANDGAP || COMPILE_TEST
408 source "drivers/thermal/ti-soc-thermal/Kconfig"
411 menu "Samsung thermal drivers"
412 depends on ARCH_EXYNOS || COMPILE_TEST
413 source "drivers/thermal/samsung/Kconfig"
416 menu "STMicroelectronics thermal drivers"
417 depends on (ARCH_STI || ARCH_STM32) && OF
418 source "drivers/thermal/st/Kconfig"
422 tristate "Tango thermal management"
423 depends on ARCH_TANGO || COMPILE_TEST
425 Enable the Tango thermal driver, which supports the primitive
426 temperature sensor embedded in Tango chips since the SMP8758.
427 This sensor only generates a 1-bit signal to indicate whether
428 the die temperature exceeds a programmable threshold.
430 source "drivers/thermal/tegra/Kconfig"
432 config GENERIC_ADC_THERMAL
433 tristate "Generic ADC based thermal sensor"
436 This enabled a thermal sysfs driver for the temperature sensor
437 which is connected to the General Purpose ADC. The ADC channel
438 is read via IIO framework and the channel information is provided
439 to this driver. This driver reports the temperature by reading ADC
440 channel and converts it to temperature based on lookup table.
442 menu "Qualcomm thermal drivers"
443 depends on (ARCH_QCOM && OF) || COMPILE_TEST
444 source "drivers/thermal/qcom/Kconfig"
447 config ZX2967_THERMAL
448 tristate "Thermal sensors on zx2967 SoC"
449 depends on ARCH_ZX || COMPILE_TEST
451 Enable the zx2967 thermal sensors driver, which supports
452 the primitive temperature sensor embedded in zx2967 SoCs.
453 This sensor generates the real time die temperature.
455 config UNIPHIER_THERMAL
456 tristate "Socionext UniPhier thermal driver"
457 depends on ARCH_UNIPHIER || COMPILE_TEST
458 depends on THERMAL_OF && MFD_SYSCON
460 Enable this to plug in UniPhier on-chip PVT thermal driver into the
461 thermal framework. The driver supports CPU thermal zone temperature
462 reporting and a couple of trip points.