xref: /openbmc/linux/drivers/thermal/Kconfig (revision 6d8e62c3) 
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_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
32config 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
45choice
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
52config 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
59config 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
67config 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
74endchoice
75
76config THERMAL_GOV_FAIR_SHARE
77	bool "Fair-share thermal governor"
78	help
79	  Enable this to manage platform thermals using fair-share governor.
80
81config 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
87config 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
97config 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
102config 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
115config CLOCK_THERMAL
116	bool "Generic clock cooling support"
117	depends on COMMON_CLK
118	depends on PM_OPP
119	help
120	  This entry implements the generic clock cooling mechanism through
121	  frequency clipping. Typically used to cool off co-processors. The
122	  device that is configured to use this cooling mechanism will be
123	  controlled to reduce clock frequency whenever temperature is high.
124
125	  If you want this support, you should say Y here.
126
127config THERMAL_EMULATION
128	bool "Thermal emulation mode support"
129	help
130	  Enable this option to make a emul_temp sysfs node in thermal zone
131	  directory to support temperature emulation. With emulation sysfs node,
132	  user can manually input temperature and test the different trip
133	  threshold behaviour for simulation purpose.
134
135	  WARNING: Be careful while enabling this option on production systems,
136	  because userland can easily disable the thermal policy by simply
137	  flooding this sysfs node with low temperature values.
138
139config IMX_THERMAL
140	tristate "Temperature sensor driver for Freescale i.MX SoCs"
141	depends on CPU_THERMAL
142	depends on MFD_SYSCON
143	depends on OF
144	help
145	  Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs.
146	  It supports one critical trip point and one passive trip point.  The
147	  cpufreq is used as the cooling device to throttle CPUs when the
148	  passive trip is crossed.
149
150config SPEAR_THERMAL
151	bool "SPEAr thermal sensor driver"
152	depends on PLAT_SPEAR
153	depends on OF
154	help
155	  Enable this to plug the SPEAr thermal sensor driver into the Linux
156	  thermal framework.
157
158config ROCKCHIP_THERMAL
159	tristate "Rockchip thermal driver"
160	depends on ARCH_ROCKCHIP
161	depends on RESET_CONTROLLER
162	help
163	  Rockchip thermal driver provides support for Temperature sensor
164	  ADC (TS-ADC) found on Rockchip SoCs. It supports one critical
165	  trip point. Cpufreq is used as the cooling device and will throttle
166	  CPUs when the Temperature crosses the passive trip point.
167
168config RCAR_THERMAL
169	tristate "Renesas R-Car thermal driver"
170	depends on ARCH_SHMOBILE || COMPILE_TEST
171	depends on HAS_IOMEM
172	help
173	  Enable this to plug the R-Car thermal sensor driver into the Linux
174	  thermal framework.
175
176config KIRKWOOD_THERMAL
177	tristate "Temperature sensor on Marvell Kirkwood SoCs"
178	depends on MACH_KIRKWOOD
179	depends on OF
180	help
181	  Support for the Kirkwood thermal sensor driver into the Linux thermal
182	  framework. Only kirkwood 88F6282 and 88F6283 have this sensor.
183
184config DOVE_THERMAL
185	tristate "Temperature sensor on Marvell Dove SoCs"
186	depends on ARCH_DOVE || MACH_DOVE
187	depends on OF
188	help
189	  Support for the Dove thermal sensor driver in the Linux thermal
190	  framework.
191
192config DB8500_THERMAL
193	bool "DB8500 thermal management"
194	depends on ARCH_U8500
195	default y
196	help
197	  Adds DB8500 thermal management implementation according to the thermal
198	  management framework. A thermal zone with several trip points will be
199	  created. Cooling devices can be bound to the trip points to cool this
200	  thermal zone if trip points reached.
201
202config ARMADA_THERMAL
203	tristate "Armada 370/XP thermal management"
204	depends on ARCH_MVEBU
205	depends on OF
206	help
207	  Enable this option if you want to have support for thermal management
208	  controller present in Armada 370 and Armada XP SoC.
209
210config TEGRA_SOCTHERM
211	tristate "Tegra SOCTHERM thermal management"
212	depends on ARCH_TEGRA
213	help
214	  Enable this option for integrated thermal management support on NVIDIA
215	  Tegra124 systems-on-chip. The driver supports four thermal zones
216	  (CPU, GPU, MEM, PLLX). Cooling devices can be bound to the thermal
217	  zones to manage temperatures. This option is also required for the
218	  emergency thermal reset (thermtrip) feature to function.
219
220config DB8500_CPUFREQ_COOLING
221	tristate "DB8500 cpufreq cooling"
222	depends on ARCH_U8500
223	depends on CPU_THERMAL
224	default y
225	help
226	  Adds DB8500 cpufreq cooling devices, and these cooling devices can be
227	  bound to thermal zone trip points. When a trip point reached, the
228	  bound cpufreq cooling device turns active to set CPU frequency low to
229	  cool down the CPU.
230
231config INTEL_POWERCLAMP
232	tristate "Intel PowerClamp idle injection driver"
233	depends on THERMAL
234	depends on X86
235	depends on CPU_SUP_INTEL
236	help
237	  Enable this to enable Intel PowerClamp idle injection driver. This
238	  enforce idle time which results in more package C-state residency. The
239	  user interface is exposed via generic thermal framework.
240
241config X86_PKG_TEMP_THERMAL
242	tristate "X86 package temperature thermal driver"
243	depends on X86_THERMAL_VECTOR
244	select THERMAL_GOV_USER_SPACE
245	default m
246	help
247	  Enable this to register CPU digital sensor for package temperature as
248	  thermal zone. Each package will have its own thermal zone. There are
249	  two trip points which can be set by user to get notifications via thermal
250	  notification methods.
251
252config INTEL_SOC_DTS_THERMAL
253	tristate "Intel SoCs DTS thermal driver"
254	depends on X86 && IOSF_MBI
255	help
256	  Enable this to register Intel SoCs (e.g. Bay Trail) platform digital
257	  temperature sensor (DTS). These SoCs have two additional DTSs in
258	  addition to DTSs on CPU cores. Each DTS will be registered as a
259	  thermal zone. There are two trip points. One of the trip point can
260	  be set by user mode programs to get notifications via Linux thermal
261	  notification methods.The other trip is a critical trip point, which
262	  was set by the driver based on the TJ MAX temperature.
263
264config INT340X_THERMAL
265	tristate "ACPI INT340X thermal drivers"
266	depends on X86 && ACPI
267	select THERMAL_GOV_USER_SPACE
268	select ACPI_THERMAL_REL
269	select ACPI_FAN
270	help
271	  Newer laptops and tablets that use ACPI may have thermal sensors and
272	  other devices with thermal control capabilities outside the core
273	  CPU/SOC, for thermal safety reasons.
274	  They are exposed for the OS to use via the INT3400 ACPI device object
275	  as the master, and INT3401~INT340B ACPI device objects as the slaves.
276	  Enable this to expose the temperature information and cooling ability
277	  from these objects to userspace via the normal thermal framework.
278	  This means that a wide range of applications and GUI widgets can show
279	  the information to the user or use this information for making
280	  decisions. For example, the Intel Thermal Daemon can use this
281	  information to allow the user to select his laptop to run without
282	  turning on the fans.
283
284config ACPI_THERMAL_REL
285	tristate
286	depends on ACPI
287
288menu "Texas Instruments thermal drivers"
289source "drivers/thermal/ti-soc-thermal/Kconfig"
290endmenu
291
292menu "Samsung thermal drivers"
293depends on ARCH_EXYNOS
294source "drivers/thermal/samsung/Kconfig"
295endmenu
296
297menu "STMicroelectronics thermal drivers"
298depends on ARCH_STI && OF
299source "drivers/thermal/st/Kconfig"
300endmenu
301
302endif
303