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Linux/drivers/thermal/Kconfig

  1 #
  2 # Generic thermal sysfs drivers configuration
  3 #
  4 
  5 menuconfig 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 
 16 if THERMAL
 17 
 18 config THERMAL_HWMON
 19         bool
 20         prompt "Expose thermal sensors as hwmon device"
 21         depends on HWMON=y || HWMON=THERMAL
 22         default y
 23         help
 24           In case a sensor is registered with the thermal
 25           framework, this option will also register it
 26           as a hwmon. The sensor will then have the common
 27           hwmon sysfs interface.
 28 
 29           Say 'Y' here if you want all thermal sensors to
 30           have hwmon sysfs interface too.
 31 
 32 config THERMAL_OF
 33         bool
 34         prompt "APIs to parse thermal data out of device tree"
 35         depends on OF
 36         default y
 37         help
 38           This options provides helpers to add the support to
 39           read and parse thermal data definitions out of the
 40           device tree blob.
 41 
 42           Say 'Y' here if you need to build thermal infrastructure
 43           based on device tree.
 44 
 45 choice
 46         prompt "Default Thermal governor"
 47         default THERMAL_DEFAULT_GOV_STEP_WISE
 48         help
 49           This option sets which thermal governor shall be loaded at
 50           startup. If in doubt, select 'step_wise'.
 51 
 52 config THERMAL_DEFAULT_GOV_STEP_WISE
 53         bool "step_wise"
 54         select THERMAL_GOV_STEP_WISE
 55         help
 56           Use the step_wise governor as default. This throttles the
 57           devices one step at a time.
 58 
 59 config THERMAL_DEFAULT_GOV_FAIR_SHARE
 60         bool "fair_share"
 61         select THERMAL_GOV_FAIR_SHARE
 62         help
 63           Use the fair_share governor as default. This throttles the
 64           devices based on their 'contribution' to a zone. The
 65           contribution should be provided through platform data.
 66 
 67 config THERMAL_DEFAULT_GOV_USER_SPACE
 68         bool "user_space"
 69         select THERMAL_GOV_USER_SPACE
 70         help
 71           Select this if you want to let the user space manage the
 72           platform thermals.
 73 
 74 endchoice
 75 
 76 config THERMAL_GOV_FAIR_SHARE
 77         bool "Fair-share thermal governor"
 78         help
 79           Enable this to manage platform thermals using fair-share governor.
 80 
 81 config THERMAL_GOV_STEP_WISE
 82         bool "Step_wise thermal governor"
 83         help
 84           Enable this to manage platform thermals using a simple linear
 85           governor.
 86 
 87 config THERMAL_GOV_BANG_BANG
 88         bool "Bang Bang thermal governor"
 89         default n
 90         help
 91           Enable this to manage platform thermals using bang bang governor.
 92 
 93           Say 'Y' here if you want to use two point temperature regulation
 94           used for fans without throttling.  Some fan drivers depend on this
 95           governor to be enabled (e.g. acerhdf).
 96 
 97 config THERMAL_GOV_USER_SPACE
 98         bool "User_space thermal governor"
 99         help
100           Enable this to let the user space manage the platform thermals.
101 
102 config CPU_THERMAL
103         bool "generic cpu cooling support"
104         depends on CPU_FREQ
105         depends on THERMAL_OF
106         help
107           This implements the generic cpu cooling mechanism through frequency
108           reduction. An ACPI version of this already exists
109           (drivers/acpi/processor_thermal.c).
110           This will be useful for platforms using the generic thermal interface
111           and not the ACPI interface.
112 
113           If you want this support, you should say Y here.
114 
115 config THERMAL_EMULATION
116         bool "Thermal emulation mode support"
117         help
118           Enable this option to make a emul_temp sysfs node in thermal zone
119           directory to support temperature emulation. With emulation sysfs node,
120           user can manually input temperature and test the different trip
121           threshold behaviour for simulation purpose.
122 
123           WARNING: Be careful while enabling this option on production systems,
124           because userland can easily disable the thermal policy by simply
125           flooding this sysfs node with low temperature values.
126 
127 config IMX_THERMAL
128         tristate "Temperature sensor driver for Freescale i.MX SoCs"
129         depends on CPU_THERMAL
130         depends on MFD_SYSCON
131         depends on OF
132         help
133           Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs.
134           It supports one critical trip point and one passive trip point.  The
135           cpufreq is used as the cooling device to throttle CPUs when the
136           passive trip is crossed.
137 
138 config SPEAR_THERMAL
139         bool "SPEAr thermal sensor driver"
140         depends on PLAT_SPEAR
141         depends on OF
142         help
143           Enable this to plug the SPEAr thermal sensor driver into the Linux
144           thermal framework.
145 
146 config RCAR_THERMAL
147         tristate "Renesas R-Car thermal driver"
148         depends on ARCH_SHMOBILE || COMPILE_TEST
149         depends on HAS_IOMEM
150         help
151           Enable this to plug the R-Car thermal sensor driver into the Linux
152           thermal framework.
153 
154 config KIRKWOOD_THERMAL
155         tristate "Temperature sensor on Marvell Kirkwood SoCs"
156         depends on MACH_KIRKWOOD
157         depends on OF
158         help
159           Support for the Kirkwood thermal sensor driver into the Linux thermal
160           framework. Only kirkwood 88F6282 and 88F6283 have this sensor.
161 
162 config DOVE_THERMAL
163         tristate "Temperature sensor on Marvell Dove SoCs"
164         depends on ARCH_DOVE || MACH_DOVE
165         depends on OF
166         help
167           Support for the Dove thermal sensor driver in the Linux thermal
168           framework.
169 
170 config DB8500_THERMAL
171         bool "DB8500 thermal management"
172         depends on ARCH_U8500
173         default y
174         help
175           Adds DB8500 thermal management implementation according to the thermal
176           management framework. A thermal zone with several trip points will be
177           created. Cooling devices can be bound to the trip points to cool this
178           thermal zone if trip points reached.
179 
180 config ARMADA_THERMAL
181         tristate "Armada 370/XP thermal management"
182         depends on ARCH_MVEBU
183         depends on OF
184         help
185           Enable this option if you want to have support for thermal management
186           controller present in Armada 370 and Armada XP SoC.
187 
188 config DB8500_CPUFREQ_COOLING
189         tristate "DB8500 cpufreq cooling"
190         depends on ARCH_U8500
191         depends on CPU_THERMAL
192         default y
193         help
194           Adds DB8500 cpufreq cooling devices, and these cooling devices can be
195           bound to thermal zone trip points. When a trip point reached, the
196           bound cpufreq cooling device turns active to set CPU frequency low to
197           cool down the CPU.
198 
199 config INTEL_POWERCLAMP
200         tristate "Intel PowerClamp idle injection driver"
201         depends on THERMAL
202         depends on X86
203         depends on CPU_SUP_INTEL
204         help
205           Enable this to enable Intel PowerClamp idle injection driver. This
206           enforce idle time which results in more package C-state residency. The
207           user interface is exposed via generic thermal framework.
208 
209 config X86_PKG_TEMP_THERMAL
210         tristate "X86 package temperature thermal driver"
211         depends on X86_THERMAL_VECTOR
212         select THERMAL_GOV_USER_SPACE
213         default m
214         help
215           Enable this to register CPU digital sensor for package temperature as
216           thermal zone. Each package will have its own thermal zone. There are
217           two trip points which can be set by user to get notifications via thermal
218           notification methods.
219 
220 config INTEL_SOC_DTS_THERMAL
221         tristate "Intel SoCs DTS thermal driver"
222         depends on X86 && IOSF_MBI
223         help
224           Enable this to register Intel SoCs (e.g. Bay Trail) platform digital
225           temperature sensor (DTS). These SoCs have two additional DTSs in
226           addition to DTSs on CPU cores. Each DTS will be registered as a
227           thermal zone. There are two trip points. One of the trip point can
228           be set by user mode programs to get notifications via Linux thermal
229           notification methods.The other trip is a critical trip point, which
230           was set by the driver based on the TJ MAX temperature.
231 
232 config INT340X_THERMAL
233         tristate "ACPI INT340X thermal drivers"
234         depends on X86 && ACPI
235         select THERMAL_GOV_USER_SPACE
236         select ACPI_THERMAL_REL
237         select ACPI_FAN
238         help
239           Newer laptops and tablets that use ACPI may have thermal sensors and
240           other devices with thermal control capabilities outside the core
241           CPU/SOC, for thermal safety reasons.
242           They are exposed for the OS to use via the INT3400 ACPI device object
243           as the master, and INT3401~INT340B ACPI device objects as the slaves.
244           Enable this to expose the temperature information and cooling ability
245           from these objects to userspace via the normal thermal framework.
246           This means that a wide range of applications and GUI widgets can show
247           the information to the user or use this information for making
248           decisions. For example, the Intel Thermal Daemon can use this
249           information to allow the user to select his laptop to run without
250           turning on the fans.
251 
252 config ACPI_THERMAL_REL
253         tristate
254         depends on ACPI
255 
256 menu "Texas Instruments thermal drivers"
257 source "drivers/thermal/ti-soc-thermal/Kconfig"
258 endmenu
259 
260 menu "Samsung thermal drivers"
261 depends on ARCH_EXYNOS
262 source "drivers/thermal/samsung/Kconfig"
263 endmenu
264 
265 menu "STMicroelectronics thermal drivers"
266 depends on ARCH_STI && OF
267 source "drivers/thermal/st/Kconfig"
268 endmenu
269 
270 endif

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