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 depends on 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 depends on ENERGY_MODEL 148 help 149 Enable this to manage platform thermals by dynamically 150 allocating and limiting power to devices. 151 152config CPU_THERMAL 153 bool "Generic cpu cooling support" 154 depends on CPU_FREQ 155 depends on THERMAL_OF 156 help 157 This implements the generic cpu cooling mechanism through frequency 158 reduction. An ACPI version of this already exists 159 (drivers/acpi/processor_thermal.c). 160 This will be useful for platforms using the generic thermal interface 161 and not the ACPI interface. 162 163 If you want this support, you should say Y here. 164 165config CLOCK_THERMAL 166 bool "Generic clock cooling support" 167 depends on COMMON_CLK 168 depends on PM_OPP 169 help 170 This entry implements the generic clock cooling mechanism through 171 frequency clipping. Typically used to cool off co-processors. The 172 device that is configured to use this cooling mechanism will be 173 controlled to reduce clock frequency whenever temperature is high. 174 175config DEVFREQ_THERMAL 176 bool "Generic device cooling support" 177 depends on PM_DEVFREQ 178 depends on PM_OPP 179 help 180 This implements the generic devfreq cooling mechanism through 181 frequency reduction for devices using devfreq. 182 183 This will throttle the device by limiting the maximum allowed DVFS 184 frequency corresponding to the cooling level. 185 186 In order to use the power extensions of the cooling device, 187 devfreq should use the simple_ondemand governor. 188 189 If you want this support, you should say Y here. 190 191config THERMAL_EMULATION 192 bool "Thermal emulation mode support" 193 help 194 Enable this option to make a emul_temp sysfs node in thermal zone 195 directory to support temperature emulation. With emulation sysfs node, 196 user can manually input temperature and test the different trip 197 threshold behaviour for simulation purpose. 198 199 WARNING: Be careful while enabling this option on production systems, 200 because userland can easily disable the thermal policy by simply 201 flooding this sysfs node with low temperature values. 202 203config THERMAL_MMIO 204 tristate "Generic Thermal MMIO driver" 205 depends on OF || COMPILE_TEST 206 depends on HAS_IOMEM 207 help 208 This option enables the generic thermal MMIO driver that will use 209 memory-mapped reads to get the temperature. Any HW/System that 210 allows temperature reading by a single memory-mapped reading, be it 211 register or shared memory, is a potential candidate to work with this 212 driver. 213 214config HISI_THERMAL 215 tristate "Hisilicon thermal driver" 216 depends on ARCH_HISI || COMPILE_TEST 217 depends on HAS_IOMEM 218 depends on OF 219 default y 220 help 221 Enable this to plug hisilicon's thermal sensor driver into the Linux 222 thermal framework. cpufreq is used as the cooling device to throttle 223 CPUs when the passive trip is crossed. 224 225config IMX_THERMAL 226 tristate "Temperature sensor driver for Freescale i.MX SoCs" 227 depends on ARCH_MXC || COMPILE_TEST 228 depends on NVMEM || !NVMEM 229 depends on MFD_SYSCON 230 depends on OF 231 help 232 Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs. 233 It supports one critical trip point and one passive trip point. The 234 cpufreq is used as the cooling device to throttle CPUs when the 235 passive trip is crossed. 236 237config MAX77620_THERMAL 238 tristate "Temperature sensor driver for Maxim MAX77620 PMIC" 239 depends on MFD_MAX77620 240 depends on OF 241 help 242 Support for die junction temperature warning alarm for Maxim 243 Semiconductor PMIC MAX77620 device. Device generates two alarm 244 interrupts when PMIC die temperature cross the threshold of 245 120 degC and 140 degC. 246 247config QORIQ_THERMAL 248 tristate "QorIQ Thermal Monitoring Unit" 249 depends on THERMAL_OF 250 depends on HAS_IOMEM 251 help 252 Support for Thermal Monitoring Unit (TMU) found on QorIQ platforms. 253 It supports one critical trip point and one passive trip point. The 254 cpufreq is used as the cooling device to throttle CPUs when the 255 passive trip is crossed. 256 257config SPEAR_THERMAL 258 tristate "SPEAr thermal sensor driver" 259 depends on PLAT_SPEAR || COMPILE_TEST 260 depends on HAS_IOMEM 261 depends on OF 262 help 263 Enable this to plug the SPEAr thermal sensor driver into the Linux 264 thermal framework. 265 266config ROCKCHIP_THERMAL 267 tristate "Rockchip thermal driver" 268 depends on ARCH_ROCKCHIP || COMPILE_TEST 269 depends on RESET_CONTROLLER 270 depends on HAS_IOMEM 271 help 272 Rockchip thermal driver provides support for Temperature sensor 273 ADC (TS-ADC) found on Rockchip SoCs. It supports one critical 274 trip point. Cpufreq is used as the cooling device and will throttle 275 CPUs when the Temperature crosses the passive trip point. 276 277config RCAR_THERMAL 278 tristate "Renesas R-Car thermal driver" 279 depends on ARCH_RENESAS || COMPILE_TEST 280 depends on HAS_IOMEM 281 help 282 Enable this to plug the R-Car thermal sensor driver into the Linux 283 thermal framework. 284 285config RCAR_GEN3_THERMAL 286 tristate "Renesas R-Car Gen3 thermal driver" 287 depends on ARCH_RENESAS || COMPILE_TEST 288 depends on HAS_IOMEM 289 depends on OF 290 help 291 Enable this to plug the R-Car Gen3 thermal sensor driver into the Linux 292 thermal framework. 293 294config KIRKWOOD_THERMAL 295 tristate "Temperature sensor on Marvell Kirkwood SoCs" 296 depends on MACH_KIRKWOOD || COMPILE_TEST 297 depends on HAS_IOMEM 298 depends on OF 299 help 300 Support for the Kirkwood thermal sensor driver into the Linux thermal 301 framework. Only kirkwood 88F6282 and 88F6283 have this sensor. 302 303config DOVE_THERMAL 304 tristate "Temperature sensor on Marvell Dove SoCs" 305 depends on ARCH_DOVE || MACH_DOVE || COMPILE_TEST 306 depends on HAS_IOMEM 307 depends on OF 308 help 309 Support for the Dove thermal sensor driver in the Linux thermal 310 framework. 311 312config DB8500_THERMAL 313 tristate "DB8500 thermal management" 314 depends on MFD_DB8500_PRCMU && OF 315 default y 316 help 317 Adds DB8500 thermal management implementation according to the thermal 318 management framework. A thermal zone with several trip points will be 319 created. Cooling devices can be bound to the trip points to cool this 320 thermal zone if trip points reached. 321 322config ARMADA_THERMAL 323 tristate "Marvell EBU Armada SoCs thermal management" 324 depends on ARCH_MVEBU || COMPILE_TEST 325 depends on HAS_IOMEM 326 depends on OF 327 help 328 Enable this option if you want to have support for thermal management 329 controller present in Marvell EBU Armada SoCs (370,375,XP,38x,7K,8K). 330 331config DA9062_THERMAL 332 tristate "DA9062/DA9061 Dialog Semiconductor thermal driver" 333 depends on MFD_DA9062 || COMPILE_TEST 334 depends on OF 335 help 336 Enable this for the Dialog Semiconductor thermal sensor driver. 337 This will report PMIC junction over-temperature for one thermal trip 338 zone. 339 Compatible with the DA9062 and DA9061 PMICs. 340 341config MTK_THERMAL 342 tristate "Temperature sensor driver for mediatek SoCs" 343 depends on ARCH_MEDIATEK || COMPILE_TEST 344 depends on HAS_IOMEM 345 depends on NVMEM || NVMEM=n 346 depends on RESET_CONTROLLER 347 default y 348 help 349 Enable this option if you want to have support for thermal management 350 controller present in Mediatek SoCs 351 352config AMLOGIC_THERMAL 353 tristate "Amlogic Thermal Support" 354 default ARCH_MESON 355 depends on OF && ARCH_MESON 356 help 357 If you say yes here you get support for Amlogic Thermal 358 for G12 SoC Family. 359 360 This driver can also be built as a module. If so, the module will 361 be called amlogic_thermal. 362 363menu "Intel thermal drivers" 364depends on X86 || X86_INTEL_QUARK || COMPILE_TEST 365source "drivers/thermal/intel/Kconfig" 366endmenu 367 368menu "Broadcom thermal drivers" 369depends on ARCH_BCM || ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCM_IPROC || \ 370 COMPILE_TEST 371source "drivers/thermal/broadcom/Kconfig" 372endmenu 373 374menu "Texas Instruments thermal drivers" 375depends on ARCH_HAS_BANDGAP || COMPILE_TEST 376depends on HAS_IOMEM 377source "drivers/thermal/ti-soc-thermal/Kconfig" 378endmenu 379 380menu "Samsung thermal drivers" 381depends on ARCH_EXYNOS || COMPILE_TEST 382source "drivers/thermal/samsung/Kconfig" 383endmenu 384 385menu "STMicroelectronics thermal drivers" 386depends on (ARCH_STI || ARCH_STM32) && OF 387source "drivers/thermal/st/Kconfig" 388endmenu 389 390config TANGO_THERMAL 391 tristate "Tango thermal management" 392 depends on ARCH_TANGO || COMPILE_TEST 393 help 394 Enable the Tango thermal driver, which supports the primitive 395 temperature sensor embedded in Tango chips since the SMP8758. 396 This sensor only generates a 1-bit signal to indicate whether 397 the die temperature exceeds a programmable threshold. 398 399source "drivers/thermal/tegra/Kconfig" 400 401config GENERIC_ADC_THERMAL 402 tristate "Generic ADC based thermal sensor" 403 depends on IIO 404 help 405 This enabled a thermal sysfs driver for the temperature sensor 406 which is connected to the General Purpose ADC. The ADC channel 407 is read via IIO framework and the channel information is provided 408 to this driver. This driver reports the temperature by reading ADC 409 channel and converts it to temperature based on lookup table. 410 411menu "Qualcomm thermal drivers" 412depends on (ARCH_QCOM && OF) || COMPILE_TEST 413source "drivers/thermal/qcom/Kconfig" 414endmenu 415 416config ZX2967_THERMAL 417 tristate "Thermal sensors on zx2967 SoC" 418 depends on ARCH_ZX || COMPILE_TEST 419 help 420 Enable the zx2967 thermal sensors driver, which supports 421 the primitive temperature sensor embedded in zx2967 SoCs. 422 This sensor generates the real time die temperature. 423 424config UNIPHIER_THERMAL 425 tristate "Socionext UniPhier thermal driver" 426 depends on ARCH_UNIPHIER || COMPILE_TEST 427 depends on THERMAL_OF && MFD_SYSCON 428 help 429 Enable this to plug in UniPhier on-chip PVT thermal driver into the 430 thermal framework. The driver supports CPU thermal zone temperature 431 reporting and a couple of trip points. 432endif 433