1# SPDX-License-Identifier: GPL-2.0-only 2# 3# Generic thermal sysfs drivers configuration 4# 5 6menuconfig THERMAL 7 bool "Generic Thermal sysfs driver" 8 help 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, 13 cooling devices. 14 All platforms with ACPI thermal support can use this driver. 15 If you want this support, you should say Y here. 16 17if THERMAL 18 19config THERMAL_STATISTICS 20 bool "Thermal state transition statistics" 21 help 22 Export thermal state transition statistics information through sysfs. 23 24 If in doubt, say N. 25 26config THERMAL_EMERGENCY_POWEROFF_DELAY_MS 27 int "Emergency poweroff delay in milli-seconds" 28 default 0 29 help 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. 39 40 In doubt, leave as 0. 41 42config THERMAL_HWMON 43 bool 44 prompt "Expose thermal sensors as hwmon device" 45 depends on HWMON=y || HWMON=THERMAL 46 default y 47 help 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. 52 53 Say 'Y' here if you want all thermal sensors to 54 have hwmon sysfs interface too. 55 56config THERMAL_OF 57 bool 58 prompt "APIs to parse thermal data out of device tree" 59 depends on OF 60 default y 61 help 62 This options provides helpers to add the support to 63 read and parse thermal data definitions out of the 64 device tree blob. 65 66 Say 'Y' here if you need to build thermal infrastructure 67 based on device tree. 68 69config THERMAL_WRITABLE_TRIPS 70 bool "Enable writable trip points" 71 help 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. 76 77 Say 'Y' here if you would like to allow userspace tools to 78 change trip temperatures. 79 80choice 81 prompt "Default Thermal governor" 82 default THERMAL_DEFAULT_GOV_STEP_WISE 83 help 84 This option sets which thermal governor shall be loaded at 85 startup. If in doubt, select 'step_wise'. 86 87config THERMAL_DEFAULT_GOV_STEP_WISE 88 bool "step_wise" 89 select THERMAL_GOV_STEP_WISE 90 help 91 Use the step_wise governor as default. This throttles the 92 devices one step at a time. 93 94config THERMAL_DEFAULT_GOV_FAIR_SHARE 95 bool "fair_share" 96 select THERMAL_GOV_FAIR_SHARE 97 help 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. 101 102config THERMAL_DEFAULT_GOV_USER_SPACE 103 bool "user_space" 104 select THERMAL_GOV_USER_SPACE 105 help 106 Select this if you want to let the user space manage the 107 platform thermals. 108 109config THERMAL_DEFAULT_GOV_POWER_ALLOCATOR 110 bool "power_allocator" 111 select THERMAL_GOV_POWER_ALLOCATOR 112 help 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. 116 117endchoice 118 119config THERMAL_GOV_FAIR_SHARE 120 bool "Fair-share thermal governor" 121 help 122 Enable this to manage platform thermals using fair-share governor. 123 124config THERMAL_GOV_STEP_WISE 125 bool "Step_wise thermal governor" 126 help 127 Enable this to manage platform thermals using a simple linear 128 governor. 129 130config THERMAL_GOV_BANG_BANG 131 bool "Bang Bang thermal governor" 132 default n 133 help 134 Enable this to manage platform thermals using bang bang governor. 135 136 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). 139 140config THERMAL_GOV_USER_SPACE 141 bool "User_space thermal governor" 142 help 143 Enable this to let the user space manage the platform thermals. 144 145config THERMAL_GOV_POWER_ALLOCATOR 146 bool "Power allocator thermal governor" 147 help 148 Enable this to manage platform thermals by dynamically 149 allocating and limiting power to devices. 150 151config CPU_THERMAL 152 bool "Generic cpu cooling support" 153 depends on CPU_FREQ 154 depends on THERMAL_OF 155 help 156 This implements the generic cpu cooling mechanism through frequency 157 reduction. An ACPI version of this already exists 158 (drivers/acpi/processor_thermal.c). 159 This will be useful for platforms using the generic thermal interface 160 and not the ACPI interface. 161 162 If you want this support, you should say Y here. 163 164config CLOCK_THERMAL 165 bool "Generic clock cooling support" 166 depends on COMMON_CLK 167 depends on PM_OPP 168 help 169 This entry implements the generic clock cooling mechanism through 170 frequency clipping. Typically used to cool off co-processors. The 171 device that is configured to use this cooling mechanism will be 172 controlled to reduce clock frequency whenever temperature is high. 173 174config DEVFREQ_THERMAL 175 bool "Generic device cooling support" 176 depends on PM_DEVFREQ 177 depends on PM_OPP 178 help 179 This implements the generic devfreq cooling mechanism through 180 frequency reduction for devices using devfreq. 181 182 This will throttle the device by limiting the maximum allowed DVFS 183 frequency corresponding to the cooling level. 184 185 In order to use the power extensions of the cooling device, 186 devfreq should use the simple_ondemand governor. 187 188 If you want this support, you should say Y here. 189 190config THERMAL_EMULATION 191 bool "Thermal emulation mode support" 192 help 193 Enable this option to make a emul_temp sysfs node in thermal zone 194 directory to support temperature emulation. With emulation sysfs node, 195 user can manually input temperature and test the different trip 196 threshold behaviour for simulation purpose. 197 198 WARNING: Be careful while enabling this option on production systems, 199 because userland can easily disable the thermal policy by simply 200 flooding this sysfs node with low temperature values. 201 202config THERMAL_MMIO 203 tristate "Generic Thermal MMIO driver" 204 depends on OF || COMPILE_TEST 205 depends on HAS_IOMEM 206 help 207 This option enables the generic thermal MMIO driver that will use 208 memory-mapped reads to get the temperature. Any HW/System that 209 allows temperature reading by a single memory-mapped reading, be it 210 register or shared memory, is a potential candidate to work with this 211 driver. 212 213config HISI_THERMAL 214 tristate "Hisilicon thermal driver" 215 depends on ARCH_HISI || COMPILE_TEST 216 depends on HAS_IOMEM 217 depends on OF 218 default y 219 help 220 Enable this to plug hisilicon's thermal sensor driver into the Linux 221 thermal framework. cpufreq is used as the cooling device to throttle 222 CPUs when the passive trip is crossed. 223 224config IMX_THERMAL 225 tristate "Temperature sensor driver for Freescale i.MX SoCs" 226 depends on ARCH_MXC || COMPILE_TEST 227 depends on NVMEM || !NVMEM 228 depends on MFD_SYSCON 229 depends on OF 230 help 231 Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs. 232 It supports one critical trip point and one passive trip point. The 233 cpufreq is used as the cooling device to throttle CPUs when the 234 passive trip is crossed. 235 236config MAX77620_THERMAL 237 tristate "Temperature sensor driver for Maxim MAX77620 PMIC" 238 depends on MFD_MAX77620 239 depends on OF 240 help 241 Support for die junction temperature warning alarm for Maxim 242 Semiconductor PMIC MAX77620 device. Device generates two alarm 243 interrupts when PMIC die temperature cross the threshold of 244 120 degC and 140 degC. 245 246config QORIQ_THERMAL 247 tristate "QorIQ Thermal Monitoring Unit" 248 depends on THERMAL_OF 249 depends on HAS_IOMEM 250 help 251 Support for Thermal Monitoring Unit (TMU) found on QorIQ platforms. 252 It supports one critical trip point and one passive trip point. The 253 cpufreq is used as the cooling device to throttle CPUs when the 254 passive trip is crossed. 255 256config SPEAR_THERMAL 257 tristate "SPEAr thermal sensor driver" 258 depends on PLAT_SPEAR || COMPILE_TEST 259 depends on HAS_IOMEM 260 depends on OF 261 help 262 Enable this to plug the SPEAr thermal sensor driver into the Linux 263 thermal framework. 264 265config ROCKCHIP_THERMAL 266 tristate "Rockchip thermal driver" 267 depends on ARCH_ROCKCHIP || COMPILE_TEST 268 depends on RESET_CONTROLLER 269 depends on HAS_IOMEM 270 help 271 Rockchip thermal driver provides support for Temperature sensor 272 ADC (TS-ADC) found on Rockchip SoCs. It supports one critical 273 trip point. Cpufreq is used as the cooling device and will throttle 274 CPUs when the Temperature crosses the passive trip point. 275 276config RCAR_THERMAL 277 tristate "Renesas R-Car thermal driver" 278 depends on ARCH_RENESAS || COMPILE_TEST 279 depends on HAS_IOMEM 280 help 281 Enable this to plug the R-Car thermal sensor driver into the Linux 282 thermal framework. 283 284config RCAR_GEN3_THERMAL 285 tristate "Renesas R-Car Gen3 thermal driver" 286 depends on ARCH_RENESAS || COMPILE_TEST 287 depends on HAS_IOMEM 288 depends on OF 289 help 290 Enable this to plug the R-Car Gen3 thermal sensor driver into the Linux 291 thermal framework. 292 293config KIRKWOOD_THERMAL 294 tristate "Temperature sensor on Marvell Kirkwood SoCs" 295 depends on MACH_KIRKWOOD || COMPILE_TEST 296 depends on HAS_IOMEM 297 depends on OF 298 help 299 Support for the Kirkwood thermal sensor driver into the Linux thermal 300 framework. Only kirkwood 88F6282 and 88F6283 have this sensor. 301 302config DOVE_THERMAL 303 tristate "Temperature sensor on Marvell Dove SoCs" 304 depends on ARCH_DOVE || MACH_DOVE || COMPILE_TEST 305 depends on HAS_IOMEM 306 depends on OF 307 help 308 Support for the Dove thermal sensor driver in the Linux thermal 309 framework. 310 311config DB8500_THERMAL 312 tristate "DB8500 thermal management" 313 depends on MFD_DB8500_PRCMU && OF 314 default y 315 help 316 Adds DB8500 thermal management implementation according to the thermal 317 management framework. A thermal zone with several trip points will be 318 created. Cooling devices can be bound to the trip points to cool this 319 thermal zone if trip points reached. 320 321config ARMADA_THERMAL 322 tristate "Marvell EBU Armada SoCs thermal management" 323 depends on ARCH_MVEBU || COMPILE_TEST 324 depends on HAS_IOMEM 325 depends on OF 326 help 327 Enable this option if you want to have support for thermal management 328 controller present in Marvell EBU Armada SoCs (370,375,XP,38x,7K,8K). 329 330config DA9062_THERMAL 331 tristate "DA9062/DA9061 Dialog Semiconductor thermal driver" 332 depends on MFD_DA9062 || COMPILE_TEST 333 depends on OF 334 help 335 Enable this for the Dialog Semiconductor thermal sensor driver. 336 This will report PMIC junction over-temperature for one thermal trip 337 zone. 338 Compatible with the DA9062 and DA9061 PMICs. 339 340config MTK_THERMAL 341 tristate "Temperature sensor driver for mediatek SoCs" 342 depends on ARCH_MEDIATEK || COMPILE_TEST 343 depends on HAS_IOMEM 344 depends on NVMEM || NVMEM=n 345 depends on RESET_CONTROLLER 346 default y 347 help 348 Enable this option if you want to have support for thermal management 349 controller present in Mediatek SoCs 350 351menu "Intel thermal drivers" 352depends on X86 || X86_INTEL_QUARK || COMPILE_TEST 353source "drivers/thermal/intel/Kconfig" 354endmenu 355 356menu "Broadcom thermal drivers" 357depends on ARCH_BCM || ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCM_IPROC || \ 358 COMPILE_TEST 359source "drivers/thermal/broadcom/Kconfig" 360endmenu 361 362menu "Texas Instruments thermal drivers" 363depends on ARCH_HAS_BANDGAP || COMPILE_TEST 364depends on HAS_IOMEM 365source "drivers/thermal/ti-soc-thermal/Kconfig" 366endmenu 367 368menu "Samsung thermal drivers" 369depends on ARCH_EXYNOS || COMPILE_TEST 370source "drivers/thermal/samsung/Kconfig" 371endmenu 372 373menu "STMicroelectronics thermal drivers" 374depends on (ARCH_STI || ARCH_STM32) && OF 375source "drivers/thermal/st/Kconfig" 376endmenu 377 378config TANGO_THERMAL 379 tristate "Tango thermal management" 380 depends on ARCH_TANGO || COMPILE_TEST 381 help 382 Enable the Tango thermal driver, which supports the primitive 383 temperature sensor embedded in Tango chips since the SMP8758. 384 This sensor only generates a 1-bit signal to indicate whether 385 the die temperature exceeds a programmable threshold. 386 387source "drivers/thermal/tegra/Kconfig" 388 389config GENERIC_ADC_THERMAL 390 tristate "Generic ADC based thermal sensor" 391 depends on IIO 392 help 393 This enabled a thermal sysfs driver for the temperature sensor 394 which is connected to the General Purpose ADC. The ADC channel 395 is read via IIO framework and the channel information is provided 396 to this driver. This driver reports the temperature by reading ADC 397 channel and converts it to temperature based on lookup table. 398 399menu "Qualcomm thermal drivers" 400depends on (ARCH_QCOM && OF) || COMPILE_TEST 401source "drivers/thermal/qcom/Kconfig" 402endmenu 403 404config ZX2967_THERMAL 405 tristate "Thermal sensors on zx2967 SoC" 406 depends on ARCH_ZX || COMPILE_TEST 407 help 408 Enable the zx2967 thermal sensors driver, which supports 409 the primitive temperature sensor embedded in zx2967 SoCs. 410 This sensor generates the real time die temperature. 411 412config UNIPHIER_THERMAL 413 tristate "Socionext UniPhier thermal driver" 414 depends on ARCH_UNIPHIER || COMPILE_TEST 415 depends on THERMAL_OF && MFD_SYSCON 416 help 417 Enable this to plug in UniPhier on-chip PVT thermal driver into the 418 thermal framework. The driver supports CPU thermal zone temperature 419 reporting and a couple of trip points. 420endif 421