2 # Generic thermal sysfs drivers configuration
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
10 zone and cooling device.
11 Each thermal zone contains its own temperature, trip points,
13 All platforms with ACPI thermal support can use this driver.
14 If you want this support, you should say Y or M here.
18 config THERMAL_EMERGENCY_POWEROFF_DELAY_MS
19 int "Emergency poweroff delay in milli-seconds"
23 Thermal subsystem will issue a graceful shutdown when
24 critical temperatures are reached using orderly_poweroff(). In
25 case of failure of an orderly_poweroff(), the thermal emergency
26 poweroff kicks in after a delay has elapsed and shuts down the system.
27 This config is number of milliseconds to delay before emergency
28 poweroff kicks in. Similarly to the critical trip point,
29 the delay should be carefully profiled so as to give adequate
30 time for orderly_poweroff() to finish on regular execution.
31 If set to 0 emergency poweroff will not be supported.
37 prompt "Expose thermal sensors as hwmon device"
38 depends on HWMON=y || HWMON=THERMAL
41 In case a sensor is registered with the thermal
42 framework, this option will also register it
43 as a hwmon. The sensor will then have the common
44 hwmon sysfs interface.
46 Say 'Y' here if you want all thermal sensors to
47 have hwmon sysfs interface too.
51 prompt "APIs to parse thermal data out of device tree"
55 This options provides helpers to add the support to
56 read and parse thermal data definitions out of the
59 Say 'Y' here if you need to build thermal infrastructure
62 config THERMAL_WRITABLE_TRIPS
63 bool "Enable writable trip points"
65 This option allows the system integrator to choose whether
66 trip temperatures can be changed from userspace. The
67 writable trips need to be specified when setting up the
68 thermal zone but the choice here takes precedence.
70 Say 'Y' here if you would like to allow userspace tools to
71 change trip temperatures.
74 prompt "Default Thermal governor"
75 default THERMAL_DEFAULT_GOV_STEP_WISE
77 This option sets which thermal governor shall be loaded at
78 startup. If in doubt, select 'step_wise'.
80 config THERMAL_DEFAULT_GOV_STEP_WISE
82 select THERMAL_GOV_STEP_WISE
84 Use the step_wise governor as default. This throttles the
85 devices one step at a time.
87 config THERMAL_DEFAULT_GOV_FAIR_SHARE
89 select THERMAL_GOV_FAIR_SHARE
91 Use the fair_share governor as default. This throttles the
92 devices based on their 'contribution' to a zone. The
93 contribution should be provided through platform data.
95 config THERMAL_DEFAULT_GOV_USER_SPACE
97 select THERMAL_GOV_USER_SPACE
99 Select this if you want to let the user space manage the
102 config THERMAL_DEFAULT_GOV_POWER_ALLOCATOR
103 bool "power_allocator"
104 select THERMAL_GOV_POWER_ALLOCATOR
106 Select this if you want to control temperature based on
107 system and device power allocation. This governor can only
108 operate on cooling devices that implement the power API.
112 config THERMAL_GOV_FAIR_SHARE
113 bool "Fair-share thermal governor"
115 Enable this to manage platform thermals using fair-share governor.
117 config THERMAL_GOV_STEP_WISE
118 bool "Step_wise thermal governor"
120 Enable this to manage platform thermals using a simple linear
123 config THERMAL_GOV_BANG_BANG
124 bool "Bang Bang thermal governor"
127 Enable this to manage platform thermals using bang bang governor.
129 Say 'Y' here if you want to use two point temperature regulation
130 used for fans without throttling. Some fan drivers depend on this
131 governor to be enabled (e.g. acerhdf).
133 config THERMAL_GOV_USER_SPACE
134 bool "User_space thermal governor"
136 Enable this to let the user space manage the platform thermals.
138 config THERMAL_GOV_POWER_ALLOCATOR
139 bool "Power allocator thermal governor"
141 Enable this to manage platform thermals by dynamically
142 allocating and limiting power to devices.
145 bool "generic cpu cooling support"
147 depends on THERMAL_OF
149 This implements the generic cpu cooling mechanism through frequency
150 reduction. An ACPI version of this already exists
151 (drivers/acpi/processor_thermal.c).
152 This will be useful for platforms using the generic thermal interface
153 and not the ACPI interface.
155 If you want this support, you should say Y here.
158 bool "Generic clock cooling support"
159 depends on COMMON_CLK
162 This entry implements the generic clock cooling mechanism through
163 frequency clipping. Typically used to cool off co-processors. The
164 device that is configured to use this cooling mechanism will be
165 controlled to reduce clock frequency whenever temperature is high.
167 config DEVFREQ_THERMAL
168 bool "Generic device cooling support"
169 depends on PM_DEVFREQ
172 This implements the generic devfreq cooling mechanism through
173 frequency reduction for devices using devfreq.
175 This will throttle the device by limiting the maximum allowed DVFS
176 frequency corresponding to the cooling level.
178 In order to use the power extensions of the cooling device,
179 devfreq should use the simple_ondemand governor.
181 If you want this support, you should say Y here.
183 config THERMAL_EMULATION
184 bool "Thermal emulation mode support"
186 Enable this option to make a emul_temp sysfs node in thermal zone
187 directory to support temperature emulation. With emulation sysfs node,
188 user can manually input temperature and test the different trip
189 threshold behaviour for simulation purpose.
191 WARNING: Be careful while enabling this option on production systems,
192 because userland can easily disable the thermal policy by simply
193 flooding this sysfs node with low temperature values.
196 tristate "Hisilicon thermal driver"
197 depends on ARCH_HISI || COMPILE_TEST
202 Enable this to plug hisilicon's thermal sensor driver into the Linux
203 thermal framework. cpufreq is used as the cooling device to throttle
204 CPUs when the passive trip is crossed.
207 tristate "Temperature sensor driver for Freescale i.MX SoCs"
208 depends on (ARCH_MXC && CPU_THERMAL) || COMPILE_TEST
209 depends on NVMEM || !NVMEM
210 depends on MFD_SYSCON
213 Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs.
214 It supports one critical trip point and one passive trip point. The
215 cpufreq is used as the cooling device to throttle CPUs when the
216 passive trip is crossed.
218 config MAX77620_THERMAL
219 tristate "Temperature sensor driver for Maxim MAX77620 PMIC"
220 depends on MFD_MAX77620
223 Support for die junction temperature warning alarm for Maxim
224 Semiconductor PMIC MAX77620 device. Device generates two alarm
225 interrupts when PMIC die temperature cross the threshold of
226 120 degC and 140 degC.
229 tristate "QorIQ Thermal Monitoring Unit"
230 depends on THERMAL_OF
233 Support for Thermal Monitoring Unit (TMU) found on QorIQ platforms.
234 It supports one critical trip point and one passive trip point. The
235 cpufreq is used as the cooling device to throttle CPUs when the
236 passive trip is crossed.
239 tristate "SPEAr thermal sensor driver"
240 depends on PLAT_SPEAR || COMPILE_TEST
244 Enable this to plug the SPEAr thermal sensor driver into the Linux
247 config ROCKCHIP_THERMAL
248 tristate "Rockchip thermal driver"
249 depends on ARCH_ROCKCHIP || COMPILE_TEST
250 depends on RESET_CONTROLLER
253 Rockchip thermal driver provides support for Temperature sensor
254 ADC (TS-ADC) found on Rockchip SoCs. It supports one critical
255 trip point. Cpufreq is used as the cooling device and will throttle
256 CPUs when the Temperature crosses the passive trip point.
259 tristate "Renesas R-Car thermal driver"
260 depends on ARCH_RENESAS || COMPILE_TEST
263 Enable this to plug the R-Car thermal sensor driver into the Linux
266 config RCAR_GEN3_THERMAL
267 tristate "Renesas R-Car Gen3 thermal driver"
268 depends on ARCH_RENESAS || COMPILE_TEST
272 Enable this to plug the R-Car Gen3 thermal sensor driver into the Linux
275 config KIRKWOOD_THERMAL
276 tristate "Temperature sensor on Marvell Kirkwood SoCs"
277 depends on MACH_KIRKWOOD || COMPILE_TEST
281 Support for the Kirkwood thermal sensor driver into the Linux thermal
282 framework. Only kirkwood 88F6282 and 88F6283 have this sensor.
285 tristate "Temperature sensor on Marvell Dove SoCs"
286 depends on ARCH_DOVE || MACH_DOVE || COMPILE_TEST
290 Support for the Dove thermal sensor driver in the Linux thermal
293 config DB8500_THERMAL
294 tristate "DB8500 thermal management"
295 depends on MFD_DB8500_PRCMU
298 Adds DB8500 thermal management implementation according to the thermal
299 management framework. A thermal zone with several trip points will be
300 created. Cooling devices can be bound to the trip points to cool this
301 thermal zone if trip points reached.
303 config ARMADA_THERMAL
304 tristate "Marvell EBU Armada SoCs thermal management"
305 depends on ARCH_MVEBU || COMPILE_TEST
309 Enable this option if you want to have support for thermal management
310 controller present in Marvell EBU Armada SoCs (370,375,XP,38x,7K,8K).
312 config DA9062_THERMAL
313 tristate "DA9062/DA9061 Dialog Semiconductor thermal driver"
314 depends on MFD_DA9062 || COMPILE_TEST
317 Enable this for the Dialog Semiconductor thermal sensor driver.
318 This will report PMIC junction over-temperature for one thermal trip
320 Compatible with the DA9062 and DA9061 PMICs.
322 config INTEL_POWERCLAMP
323 tristate "Intel PowerClamp idle injection driver"
326 depends on CPU_SUP_INTEL
328 Enable this to enable Intel PowerClamp idle injection driver. This
329 enforce idle time which results in more package C-state residency. The
330 user interface is exposed via generic thermal framework.
332 config X86_PKG_TEMP_THERMAL
333 tristate "X86 package temperature thermal driver"
334 depends on X86_THERMAL_VECTOR
335 select THERMAL_GOV_USER_SPACE
336 select THERMAL_WRITABLE_TRIPS
339 Enable this to register CPU digital sensor for package temperature as
340 thermal zone. Each package will have its own thermal zone. There are
341 two trip points which can be set by user to get notifications via thermal
342 notification methods.
344 config INTEL_SOC_DTS_IOSF_CORE
346 depends on X86 && PCI
349 This is becoming a common feature for Intel SoCs to expose the additional
350 digital temperature sensors (DTSs) using side band interface (IOSF). This
351 implements the common set of helper functions to register, get temperature
352 and get/set thresholds on DTSs.
354 config INTEL_SOC_DTS_THERMAL
355 tristate "Intel SoCs DTS thermal driver"
356 depends on X86 && PCI
357 select INTEL_SOC_DTS_IOSF_CORE
358 select THERMAL_WRITABLE_TRIPS
360 Enable this to register Intel SoCs (e.g. Bay Trail) platform digital
361 temperature sensor (DTS). These SoCs have two additional DTSs in
362 addition to DTSs on CPU cores. Each DTS will be registered as a
363 thermal zone. There are two trip points. One of the trip point can
364 be set by user mode programs to get notifications via Linux thermal
365 notification methods.The other trip is a critical trip point, which
366 was set by the driver based on the TJ MAX temperature.
368 config INTEL_QUARK_DTS_THERMAL
369 tristate "Intel Quark DTS thermal driver"
370 depends on X86_INTEL_QUARK
372 Enable this to register Intel Quark SoC (e.g. X1000) platform digital
373 temperature sensor (DTS). For X1000 SoC, it has one on-die DTS.
374 The DTS will be registered as a thermal zone. There are two trip points:
375 hot & critical. The critical trip point default value is set by
376 underlying BIOS/Firmware.
378 menu "ACPI INT340X thermal drivers"
379 source drivers/thermal/int340x_thermal/Kconfig
382 config INTEL_BXT_PMIC_THERMAL
383 tristate "Intel Broxton PMIC thermal driver"
384 depends on X86 && INTEL_SOC_PMIC_BXTWC && REGMAP
386 Select this driver for Intel Broxton PMIC with ADC channels monitoring
387 system temperature measurements and alerts.
388 This driver is used for monitoring the ADC channels of PMIC and handles
389 the alert trip point interrupts and notifies the thermal framework with
390 the trip point and temperature details of the zone.
392 config INTEL_PCH_THERMAL
393 tristate "Intel PCH Thermal Reporting Driver"
394 depends on X86 && PCI
396 Enable this to support thermal reporting on certain intel PCHs.
397 Thermal reporting device will provide temperature reading,
398 programmable trip points and other information.
401 tristate "Temperature sensor driver for mediatek SoCs"
402 depends on ARCH_MEDIATEK || COMPILE_TEST
404 depends on NVMEM || NVMEM=n
405 depends on RESET_CONTROLLER
408 Enable this option if you want to have support for thermal management
409 controller present in Mediatek SoCs
411 menu "Broadcom thermal drivers"
412 depends on ARCH_BCM || ARCH_BRCMSTB || ARCH_BCM2835 || COMPILE_TEST
413 source "drivers/thermal/broadcom/Kconfig"
416 menu "Texas Instruments thermal drivers"
417 depends on ARCH_HAS_BANDGAP || COMPILE_TEST
419 source "drivers/thermal/ti-soc-thermal/Kconfig"
422 menu "Samsung thermal drivers"
423 depends on ARCH_EXYNOS || COMPILE_TEST
424 source "drivers/thermal/samsung/Kconfig"
427 menu "STMicroelectronics thermal drivers"
428 depends on ARCH_STI && OF
429 source "drivers/thermal/st/Kconfig"
433 tristate "Tango thermal management"
434 depends on ARCH_TANGO || COMPILE_TEST
436 Enable the Tango thermal driver, which supports the primitive
437 temperature sensor embedded in Tango chips since the SMP8758.
438 This sensor only generates a 1-bit signal to indicate whether
439 the die temperature exceeds a programmable threshold.
441 source "drivers/thermal/tegra/Kconfig"
443 config QCOM_SPMI_TEMP_ALARM
444 tristate "Qualcomm SPMI PMIC Temperature Alarm"
445 depends on OF && SPMI && IIO
448 This enables a thermal sysfs driver for Qualcomm plug-and-play (QPNP)
449 PMIC devices. It shows up in sysfs as a thermal sensor with multiple
450 trip points. The temperature reported by the thermal sensor reflects the
451 real time die temperature if an ADC is present or an estimate of the
452 temperature based upon the over temperature stage value.
454 config GENERIC_ADC_THERMAL
455 tristate "Generic ADC based thermal sensor"
458 This enabled a thermal sysfs driver for the temperature sensor
459 which is connected to the General Purpose ADC. The ADC channel
460 is read via IIO framework and the channel information is provided
461 to this driver. This driver reports the temperature by reading ADC
462 channel and converts it to temperature based on lookup table.
464 menu "Qualcomm thermal drivers"
465 depends on (ARCH_QCOM && OF) || COMPILE_TEST
466 source "drivers/thermal/qcom/Kconfig"
469 config ZX2967_THERMAL
470 tristate "Thermal sensors on zx2967 SoC"
471 depends on ARCH_ZX || COMPILE_TEST
473 Enable the zx2967 thermal sensors driver, which supports
474 the primitive temperature sensor embedded in zx2967 SoCs.
475 This sensor generates the real time die temperature.
477 config UNIPHIER_THERMAL
478 tristate "Socionext UniPhier thermal driver"
479 depends on ARCH_UNIPHIER || COMPILE_TEST
480 depends on THERMAL_OF && MFD_SYSCON
482 Enable this to plug in UniPhier on-chip PVT thermal driver into the
483 thermal framework. The driver supports CPU thermal zone temperature
484 reporting and a couple of trip points.