1# 2# Generic thermal sysfs drivers configuration 3# 4 5menuconfig THERMAL 6 tristate "Generic Thermal sysfs driver" 7 help 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, 12 cooling devices. 13 All platforms with ACPI thermal support can use this driver. 14 If you want this support, you should say Y or M here. 15 16if THERMAL 17 18config THERMAL_STATISTICS 19 bool "Thermal state transition statistics" 20 help 21 Export thermal state transition statistics information through sysfs. 22 23 If in doubt, say N. 24 25config THERMAL_EMERGENCY_POWEROFF_DELAY_MS 26 int "Emergency poweroff delay in milli-seconds" 27 depends on THERMAL 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 depends on THERMAL=y 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 HISI_THERMAL 204 tristate "Hisilicon thermal driver" 205 depends on ARCH_HISI || COMPILE_TEST 206 depends on HAS_IOMEM 207 depends on OF 208 default y 209 help 210 Enable this to plug hisilicon's thermal sensor driver into the Linux 211 thermal framework. cpufreq is used as the cooling device to throttle 212 CPUs when the passive trip is crossed. 213 214config IMX_THERMAL 215 tristate "Temperature sensor driver for Freescale i.MX SoCs" 216 depends on ARCH_MXC || COMPILE_TEST 217 depends on NVMEM || !NVMEM 218 depends on MFD_SYSCON 219 depends on OF 220 help 221 Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs. 222 It supports one critical trip point and one passive trip point. The 223 cpufreq is used as the cooling device to throttle CPUs when the 224 passive trip is crossed. 225 226config MAX77620_THERMAL 227 tristate "Temperature sensor driver for Maxim MAX77620 PMIC" 228 depends on MFD_MAX77620 229 depends on OF 230 help 231 Support for die junction temperature warning alarm for Maxim 232 Semiconductor PMIC MAX77620 device. Device generates two alarm 233 interrupts when PMIC die temperature cross the threshold of 234 120 degC and 140 degC. 235 236config QORIQ_THERMAL 237 tristate "QorIQ Thermal Monitoring Unit" 238 depends on THERMAL_OF 239 depends on HAS_IOMEM 240 help 241 Support for Thermal Monitoring Unit (TMU) found on QorIQ platforms. 242 It supports one critical trip point and one passive trip point. The 243 cpufreq is used as the cooling device to throttle CPUs when the 244 passive trip is crossed. 245 246config SPEAR_THERMAL 247 tristate "SPEAr thermal sensor driver" 248 depends on PLAT_SPEAR || COMPILE_TEST 249 depends on HAS_IOMEM 250 depends on OF 251 help 252 Enable this to plug the SPEAr thermal sensor driver into the Linux 253 thermal framework. 254 255config ROCKCHIP_THERMAL 256 tristate "Rockchip thermal driver" 257 depends on ARCH_ROCKCHIP || COMPILE_TEST 258 depends on RESET_CONTROLLER 259 depends on HAS_IOMEM 260 help 261 Rockchip thermal driver provides support for Temperature sensor 262 ADC (TS-ADC) found on Rockchip SoCs. It supports one critical 263 trip point. Cpufreq is used as the cooling device and will throttle 264 CPUs when the Temperature crosses the passive trip point. 265 266config RCAR_THERMAL 267 tristate "Renesas R-Car thermal driver" 268 depends on ARCH_RENESAS || COMPILE_TEST 269 depends on HAS_IOMEM 270 help 271 Enable this to plug the R-Car thermal sensor driver into the Linux 272 thermal framework. 273 274config RCAR_GEN3_THERMAL 275 tristate "Renesas R-Car Gen3 thermal driver" 276 depends on ARCH_RENESAS || COMPILE_TEST 277 depends on HAS_IOMEM 278 depends on OF 279 help 280 Enable this to plug the R-Car Gen3 thermal sensor driver into the Linux 281 thermal framework. 282 283config KIRKWOOD_THERMAL 284 tristate "Temperature sensor on Marvell Kirkwood SoCs" 285 depends on MACH_KIRKWOOD || COMPILE_TEST 286 depends on HAS_IOMEM 287 depends on OF 288 help 289 Support for the Kirkwood thermal sensor driver into the Linux thermal 290 framework. Only kirkwood 88F6282 and 88F6283 have this sensor. 291 292config DOVE_THERMAL 293 tristate "Temperature sensor on Marvell Dove SoCs" 294 depends on ARCH_DOVE || MACH_DOVE || COMPILE_TEST 295 depends on HAS_IOMEM 296 depends on OF 297 help 298 Support for the Dove thermal sensor driver in the Linux thermal 299 framework. 300 301config DB8500_THERMAL 302 tristate "DB8500 thermal management" 303 depends on MFD_DB8500_PRCMU 304 default y 305 help 306 Adds DB8500 thermal management implementation according to the thermal 307 management framework. A thermal zone with several trip points will be 308 created. Cooling devices can be bound to the trip points to cool this 309 thermal zone if trip points reached. 310 311config ARMADA_THERMAL 312 tristate "Marvell EBU Armada SoCs thermal management" 313 depends on ARCH_MVEBU || COMPILE_TEST 314 depends on HAS_IOMEM 315 depends on OF 316 help 317 Enable this option if you want to have support for thermal management 318 controller present in Marvell EBU Armada SoCs (370,375,XP,38x,7K,8K). 319 320config DA9062_THERMAL 321 tristate "DA9062/DA9061 Dialog Semiconductor thermal driver" 322 depends on MFD_DA9062 || COMPILE_TEST 323 depends on OF 324 help 325 Enable this for the Dialog Semiconductor thermal sensor driver. 326 This will report PMIC junction over-temperature for one thermal trip 327 zone. 328 Compatible with the DA9062 and DA9061 PMICs. 329 330config MTK_THERMAL 331 tristate "Temperature sensor driver for mediatek SoCs" 332 depends on ARCH_MEDIATEK || COMPILE_TEST 333 depends on HAS_IOMEM 334 depends on NVMEM || NVMEM=n 335 depends on RESET_CONTROLLER 336 default y 337 help 338 Enable this option if you want to have support for thermal management 339 controller present in Mediatek SoCs 340 341menu "Intel thermal drivers" 342depends on X86 || X86_INTEL_QUARK || COMPILE_TEST 343source "drivers/thermal/intel/Kconfig" 344endmenu 345 346menu "Broadcom thermal drivers" 347depends on ARCH_BCM || ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCM_IPROC || \ 348 COMPILE_TEST 349source "drivers/thermal/broadcom/Kconfig" 350endmenu 351 352menu "Texas Instruments thermal drivers" 353depends on ARCH_HAS_BANDGAP || COMPILE_TEST 354depends on HAS_IOMEM 355source "drivers/thermal/ti-soc-thermal/Kconfig" 356endmenu 357 358menu "Samsung thermal drivers" 359depends on ARCH_EXYNOS || COMPILE_TEST 360source "drivers/thermal/samsung/Kconfig" 361endmenu 362 363menu "STMicroelectronics thermal drivers" 364depends on (ARCH_STI || ARCH_STM32) && OF 365source "drivers/thermal/st/Kconfig" 366endmenu 367 368config TANGO_THERMAL 369 tristate "Tango thermal management" 370 depends on ARCH_TANGO || COMPILE_TEST 371 help 372 Enable the Tango thermal driver, which supports the primitive 373 temperature sensor embedded in Tango chips since the SMP8758. 374 This sensor only generates a 1-bit signal to indicate whether 375 the die temperature exceeds a programmable threshold. 376 377source "drivers/thermal/tegra/Kconfig" 378 379config GENERIC_ADC_THERMAL 380 tristate "Generic ADC based thermal sensor" 381 depends on IIO 382 help 383 This enabled a thermal sysfs driver for the temperature sensor 384 which is connected to the General Purpose ADC. The ADC channel 385 is read via IIO framework and the channel information is provided 386 to this driver. This driver reports the temperature by reading ADC 387 channel and converts it to temperature based on lookup table. 388 389menu "Qualcomm thermal drivers" 390depends on (ARCH_QCOM && OF) || COMPILE_TEST 391source "drivers/thermal/qcom/Kconfig" 392endmenu 393 394config ZX2967_THERMAL 395 tristate "Thermal sensors on zx2967 SoC" 396 depends on ARCH_ZX || COMPILE_TEST 397 help 398 Enable the zx2967 thermal sensors driver, which supports 399 the primitive temperature sensor embedded in zx2967 SoCs. 400 This sensor generates the real time die temperature. 401 402config UNIPHIER_THERMAL 403 tristate "Socionext UniPhier thermal driver" 404 depends on ARCH_UNIPHIER || COMPILE_TEST 405 depends on THERMAL_OF && MFD_SYSCON 406 help 407 Enable this to plug in UniPhier on-chip PVT thermal driver into the 408 thermal framework. The driver supports CPU thermal zone temperature 409 reporting and a couple of trip points. 410endif 411