xref: /openbmc/linux/drivers/thermal/Kconfig (revision 4a075bd4)
1#
2# Generic thermal sysfs drivers configuration
3#
4
5menuconfig THERMAL
6	bool "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 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	default 0
28	help
29	  Thermal subsystem will issue a graceful shutdown when
30	  critical temperatures are reached using orderly_poweroff(). In
31	  case of failure of an orderly_poweroff(), the thermal emergency
32	  poweroff kicks in after a delay has elapsed and shuts down the system.
33	  This config is number of milliseconds to delay before emergency
34	  poweroff kicks in. Similarly to the critical trip point,
35	  the delay should be carefully profiled so as to give adequate
36	  time for orderly_poweroff() to finish on regular execution.
37	  If set to 0 emergency poweroff will not be supported.
38
39	  In doubt, leave as 0.
40
41config THERMAL_HWMON
42	bool
43	prompt "Expose thermal sensors as hwmon device"
44	depends on HWMON=y || HWMON=THERMAL
45	default y
46	help
47	  In case a sensor is registered with the thermal
48	  framework, this option will also register it
49	  as a hwmon. The sensor will then have the common
50	  hwmon sysfs interface.
51
52	  Say 'Y' here if you want all thermal sensors to
53	  have hwmon sysfs interface too.
54
55config THERMAL_OF
56	bool
57	prompt "APIs to parse thermal data out of device tree"
58	depends on OF
59	default y
60	help
61	  This options provides helpers to add the support to
62	  read and parse thermal data definitions out of the
63	  device tree blob.
64
65	  Say 'Y' here if you need to build thermal infrastructure
66	  based on device tree.
67
68config THERMAL_WRITABLE_TRIPS
69	bool "Enable writable trip points"
70	help
71	  This option allows the system integrator to choose whether
72	  trip temperatures can be changed from userspace. The
73	  writable trips need to be specified when setting up the
74	  thermal zone but the choice here takes precedence.
75
76	  Say 'Y' here if you would like to allow userspace tools to
77	  change trip temperatures.
78
79choice
80	prompt "Default Thermal governor"
81	default THERMAL_DEFAULT_GOV_STEP_WISE
82	help
83	  This option sets which thermal governor shall be loaded at
84	  startup. If in doubt, select 'step_wise'.
85
86config THERMAL_DEFAULT_GOV_STEP_WISE
87	bool "step_wise"
88	select THERMAL_GOV_STEP_WISE
89	help
90	  Use the step_wise governor as default. This throttles the
91	  devices one step at a time.
92
93config THERMAL_DEFAULT_GOV_FAIR_SHARE
94	bool "fair_share"
95	select THERMAL_GOV_FAIR_SHARE
96	help
97	  Use the fair_share governor as default. This throttles the
98	  devices based on their 'contribution' to a zone. The
99	  contribution should be provided through platform data.
100
101config THERMAL_DEFAULT_GOV_USER_SPACE
102	bool "user_space"
103	select THERMAL_GOV_USER_SPACE
104	help
105	  Select this if you want to let the user space manage the
106	  platform thermals.
107
108config THERMAL_DEFAULT_GOV_POWER_ALLOCATOR
109	bool "power_allocator"
110	select THERMAL_GOV_POWER_ALLOCATOR
111	help
112	  Select this if you want to control temperature based on
113	  system and device power allocation. This governor can only
114	  operate on cooling devices that implement the power API.
115
116endchoice
117
118config THERMAL_GOV_FAIR_SHARE
119	bool "Fair-share thermal governor"
120	help
121	  Enable this to manage platform thermals using fair-share governor.
122
123config THERMAL_GOV_STEP_WISE
124	bool "Step_wise thermal governor"
125	help
126	  Enable this to manage platform thermals using a simple linear
127	  governor.
128
129config THERMAL_GOV_BANG_BANG
130	bool "Bang Bang thermal governor"
131	default n
132	help
133	  Enable this to manage platform thermals using bang bang governor.
134
135	  Say 'Y' here if you want to use two point temperature regulation
136	  used for fans without throttling.  Some fan drivers depend on this
137	  governor to be enabled (e.g. acerhdf).
138
139config THERMAL_GOV_USER_SPACE
140	bool "User_space thermal governor"
141	help
142	  Enable this to let the user space manage the platform thermals.
143
144config THERMAL_GOV_POWER_ALLOCATOR
145	bool "Power allocator thermal governor"
146	help
147	  Enable this to manage platform thermals by dynamically
148	  allocating and limiting power to devices.
149
150config CPU_THERMAL
151	bool "Generic cpu cooling support"
152	depends on CPU_FREQ
153	depends on THERMAL_OF
154	help
155	  This implements the generic cpu cooling mechanism through frequency
156	  reduction. An ACPI version of this already exists
157	  (drivers/acpi/processor_thermal.c).
158	  This will be useful for platforms using the generic thermal interface
159	  and not the ACPI interface.
160
161	  If you want this support, you should say Y here.
162
163config CLOCK_THERMAL
164	bool "Generic clock cooling support"
165	depends on COMMON_CLK
166	depends on PM_OPP
167	help
168	  This entry implements the generic clock cooling mechanism through
169	  frequency clipping. Typically used to cool off co-processors. The
170	  device that is configured to use this cooling mechanism will be
171	  controlled to reduce clock frequency whenever temperature is high.
172
173config DEVFREQ_THERMAL
174	bool "Generic device cooling support"
175	depends on PM_DEVFREQ
176	depends on PM_OPP
177	help
178	  This implements the generic devfreq cooling mechanism through
179	  frequency reduction for devices using devfreq.
180
181	  This will throttle the device by limiting the maximum allowed DVFS
182	  frequency corresponding to the cooling level.
183
184	  In order to use the power extensions of the cooling device,
185	  devfreq should use the simple_ondemand governor.
186
187	  If you want this support, you should say Y here.
188
189config THERMAL_EMULATION
190	bool "Thermal emulation mode support"
191	help
192	  Enable this option to make a emul_temp sysfs node in thermal zone
193	  directory to support temperature emulation. With emulation sysfs node,
194	  user can manually input temperature and test the different trip
195	  threshold behaviour for simulation purpose.
196
197	  WARNING: Be careful while enabling this option on production systems,
198	  because userland can easily disable the thermal policy by simply
199	  flooding this sysfs node with low temperature values.
200
201config THERMAL_MMIO
202	tristate "Generic Thermal MMIO driver"
203	depends on OF || COMPILE_TEST
204	depends on HAS_IOMEM
205	help
206	  This option enables the generic thermal MMIO driver that will use
207	  memory-mapped reads to get the temperature.  Any HW/System that
208	  allows temperature reading by a single memory-mapped reading, be it
209	  register or shared memory, is a potential candidate to work with this
210	  driver.
211
212config HISI_THERMAL
213	tristate "Hisilicon thermal driver"
214	depends on ARCH_HISI || COMPILE_TEST
215	depends on HAS_IOMEM
216	depends on OF
217	default y
218	help
219	  Enable this to plug hisilicon's thermal sensor driver into the Linux
220	  thermal framework. cpufreq is used as the cooling device to throttle
221	  CPUs when the passive trip is crossed.
222
223config IMX_THERMAL
224	tristate "Temperature sensor driver for Freescale i.MX SoCs"
225	depends on ARCH_MXC || COMPILE_TEST
226	depends on NVMEM || !NVMEM
227	depends on MFD_SYSCON
228	depends on OF
229	help
230	  Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs.
231	  It supports one critical trip point and one passive trip point.  The
232	  cpufreq is used as the cooling device to throttle CPUs when the
233	  passive trip is crossed.
234
235config MAX77620_THERMAL
236	tristate "Temperature sensor driver for Maxim MAX77620 PMIC"
237	depends on MFD_MAX77620
238	depends on OF
239	help
240	  Support for die junction temperature warning alarm for Maxim
241	  Semiconductor PMIC MAX77620 device. Device generates two alarm
242	  interrupts when PMIC die temperature cross the threshold of
243	  120 degC and 140 degC.
244
245config QORIQ_THERMAL
246	tristate "QorIQ Thermal Monitoring Unit"
247	depends on THERMAL_OF
248	depends on HAS_IOMEM
249	help
250	  Support for Thermal Monitoring Unit (TMU) found on QorIQ platforms.
251	  It supports one critical trip point and one passive trip point. The
252	  cpufreq is used as the cooling device to throttle CPUs when the
253	  passive trip is crossed.
254
255config SPEAR_THERMAL
256	tristate "SPEAr thermal sensor driver"
257	depends on PLAT_SPEAR || COMPILE_TEST
258	depends on HAS_IOMEM
259	depends on OF
260	help
261	  Enable this to plug the SPEAr thermal sensor driver into the Linux
262	  thermal framework.
263
264config ROCKCHIP_THERMAL
265	tristate "Rockchip thermal driver"
266	depends on ARCH_ROCKCHIP || COMPILE_TEST
267	depends on RESET_CONTROLLER
268	depends on HAS_IOMEM
269	help
270	  Rockchip thermal driver provides support for Temperature sensor
271	  ADC (TS-ADC) found on Rockchip SoCs. It supports one critical
272	  trip point. Cpufreq is used as the cooling device and will throttle
273	  CPUs when the Temperature crosses the passive trip point.
274
275config RCAR_THERMAL
276	tristate "Renesas R-Car thermal driver"
277	depends on ARCH_RENESAS || COMPILE_TEST
278	depends on HAS_IOMEM
279	help
280	  Enable this to plug the R-Car thermal sensor driver into the Linux
281	  thermal framework.
282
283config RCAR_GEN3_THERMAL
284	tristate "Renesas R-Car Gen3 thermal driver"
285	depends on ARCH_RENESAS || COMPILE_TEST
286	depends on HAS_IOMEM
287	depends on OF
288	help
289	  Enable this to plug the R-Car Gen3 thermal sensor driver into the Linux
290	  thermal framework.
291
292config KIRKWOOD_THERMAL
293	tristate "Temperature sensor on Marvell Kirkwood SoCs"
294	depends on MACH_KIRKWOOD || COMPILE_TEST
295	depends on HAS_IOMEM
296	depends on OF
297	help
298	  Support for the Kirkwood thermal sensor driver into the Linux thermal
299	  framework. Only kirkwood 88F6282 and 88F6283 have this sensor.
300
301config DOVE_THERMAL
302	tristate "Temperature sensor on Marvell Dove SoCs"
303	depends on ARCH_DOVE || MACH_DOVE || COMPILE_TEST
304	depends on HAS_IOMEM
305	depends on OF
306	help
307	  Support for the Dove thermal sensor driver in the Linux thermal
308	  framework.
309
310config DB8500_THERMAL
311	tristate "DB8500 thermal management"
312	depends on MFD_DB8500_PRCMU
313	default y
314	help
315	  Adds DB8500 thermal management implementation according to the thermal
316	  management framework. A thermal zone with several trip points will be
317	  created. Cooling devices can be bound to the trip points to cool this
318	  thermal zone if trip points reached.
319
320config ARMADA_THERMAL
321	tristate "Marvell EBU Armada SoCs thermal management"
322	depends on ARCH_MVEBU || COMPILE_TEST
323	depends on HAS_IOMEM
324	depends on OF
325	help
326	  Enable this option if you want to have support for thermal management
327	  controller present in Marvell EBU Armada SoCs (370,375,XP,38x,7K,8K).
328
329config DA9062_THERMAL
330	tristate "DA9062/DA9061 Dialog Semiconductor thermal driver"
331	depends on MFD_DA9062 || COMPILE_TEST
332	depends on OF
333	help
334	  Enable this for the Dialog Semiconductor thermal sensor driver.
335	  This will report PMIC junction over-temperature for one thermal trip
336	  zone.
337	  Compatible with the DA9062 and DA9061 PMICs.
338
339config MTK_THERMAL
340	tristate "Temperature sensor driver for mediatek SoCs"
341	depends on ARCH_MEDIATEK || COMPILE_TEST
342	depends on HAS_IOMEM
343	depends on NVMEM || NVMEM=n
344	depends on RESET_CONTROLLER
345	default y
346	help
347	  Enable this option if you want to have support for thermal management
348	  controller present in Mediatek SoCs
349
350menu "Intel thermal drivers"
351depends on X86 || X86_INTEL_QUARK || COMPILE_TEST
352source "drivers/thermal/intel/Kconfig"
353endmenu
354
355menu "Broadcom thermal drivers"
356depends on ARCH_BCM || ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCM_IPROC || \
357		COMPILE_TEST
358source "drivers/thermal/broadcom/Kconfig"
359endmenu
360
361menu "Texas Instruments thermal drivers"
362depends on ARCH_HAS_BANDGAP || COMPILE_TEST
363depends on HAS_IOMEM
364source "drivers/thermal/ti-soc-thermal/Kconfig"
365endmenu
366
367menu "Samsung thermal drivers"
368depends on ARCH_EXYNOS || COMPILE_TEST
369source "drivers/thermal/samsung/Kconfig"
370endmenu
371
372menu "STMicroelectronics thermal drivers"
373depends on (ARCH_STI || ARCH_STM32) && OF
374source "drivers/thermal/st/Kconfig"
375endmenu
376
377config TANGO_THERMAL
378	tristate "Tango thermal management"
379	depends on ARCH_TANGO || COMPILE_TEST
380	help
381	  Enable the Tango thermal driver, which supports the primitive
382	  temperature sensor embedded in Tango chips since the SMP8758.
383	  This sensor only generates a 1-bit signal to indicate whether
384	  the die temperature exceeds a programmable threshold.
385
386source "drivers/thermal/tegra/Kconfig"
387
388config GENERIC_ADC_THERMAL
389	tristate "Generic ADC based thermal sensor"
390	depends on IIO
391	help
392	  This enabled a thermal sysfs driver for the temperature sensor
393	  which is connected to the General Purpose ADC. The ADC channel
394	  is read via IIO framework and the channel information is provided
395	  to this driver. This driver reports the temperature by reading ADC
396	  channel and converts it to temperature based on lookup table.
397
398menu "Qualcomm thermal drivers"
399depends on (ARCH_QCOM && OF) || COMPILE_TEST
400source "drivers/thermal/qcom/Kconfig"
401endmenu
402
403config ZX2967_THERMAL
404	tristate "Thermal sensors on zx2967 SoC"
405	depends on ARCH_ZX || COMPILE_TEST
406	help
407	  Enable the zx2967 thermal sensors driver, which supports
408	  the primitive temperature sensor embedded in zx2967 SoCs.
409	  This sensor generates the real time die temperature.
410
411config UNIPHIER_THERMAL
412	tristate "Socionext UniPhier thermal driver"
413	depends on ARCH_UNIPHIER || COMPILE_TEST
414	depends on THERMAL_OF && MFD_SYSCON
415	help
416	  Enable this to plug in UniPhier on-chip PVT thermal driver into the
417	  thermal framework. The driver supports CPU thermal zone temperature
418	  reporting and a couple of trip points.
419endif
420