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8264fce6de
Pull thermal management updates from Zhang Rui:
"Sorry that I missed the merge window as there is a bug found in the
last minute, and I have to fix it and wait for the code to be tested
in linux-next tree for a few days. Now the buggy patch has been
dropped entirely from my next branch. Thus I hope those changes can
still be merged in 3.18-rc2 as most of them are platform thermal
driver changes.
Specifics:
- introduce ACPI INT340X thermal drivers.
Newer laptops and tablets may have thermal sensors and other
devices with thermal control capabilities that are exposed for the
OS to use via the ACPI INT340x device objects. Several drivers are
introduced to expose the temperature information and cooling
ability from these objects to user-space via the normal thermal
framework.
From: Lu Aaron, Lan Tianyu, Jacob Pan and Zhang Rui.
- introduce a new thermal governor, which just uses a hysteresis to
switch abruptly on/off a cooling device. This governor can be used
to control certain fan devices that can not be throttled but just
switched on or off. From: Peter Feuerer.
- introduce support for some new thermal interrupt functions on
i.MX6SX, in IMX thermal driver. From: Anson, Huang.
- introduce tracing support on thermal framework. From: Punit
Agrawal.
- small fixes in OF thermal and thermal step_wise governor"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (25 commits)
Thermal: int340x thermal: select ACPI fan driver
Thermal: int3400_thermal: use acpi_thermal_rel parsing APIs
Thermal: int340x_thermal: expose acpi thermal relationship tables
Thermal: introduce int3403 thermal driver
Thermal: introduce INT3402 thermal driver
Thermal: move the KELVIN_TO_MILLICELSIUS macro to thermal.h
ACPI / Fan: support INT3404 thermal device
ACPI / Fan: add ACPI 4.0 style fan support
ACPI / fan: convert to platform driver
ACPI / fan: use acpi_device_xxx_power instead of acpi_bus equivelant
ACPI / fan: remove no need check for device pointer
ACPI / fan: remove unused macro
Thermal: int3400 thermal: register to thermal framework
Thermal: int3400 thermal: add capability to detect supporting UUIDs
Thermal: introduce int3400 thermal driver
ACPI: add ACPI_TYPE_LOCAL_REFERENCE support to acpi_extract_package()
ACPI: make acpi_create_platform_device() an external API
thermal: step_wise: fix: Prevent from binary overflow when trend is dropping
ACPI: introduce ACPI int340x thermal scan handler
thermal: Added Bang-bang thermal governor
...
271 lines
8.5 KiB
Plaintext
271 lines
8.5 KiB
Plaintext
#
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# Generic thermal sysfs drivers configuration
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#
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menuconfig THERMAL
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tristate "Generic Thermal sysfs driver"
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help
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Generic Thermal Sysfs driver offers a generic mechanism for
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thermal management. Usually it's made up of one or more thermal
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zone and cooling device.
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Each thermal zone contains its own temperature, trip points,
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cooling devices.
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All platforms with ACPI thermal support can use this driver.
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If you want this support, you should say Y or M here.
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if THERMAL
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config THERMAL_HWMON
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bool
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prompt "Expose thermal sensors as hwmon device"
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depends on HWMON=y || HWMON=THERMAL
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default y
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help
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In case a sensor is registered with the thermal
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framework, this option will also register it
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as a hwmon. The sensor will then have the common
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hwmon sysfs interface.
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Say 'Y' here if you want all thermal sensors to
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have hwmon sysfs interface too.
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config THERMAL_OF
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bool
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prompt "APIs to parse thermal data out of device tree"
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depends on OF
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default y
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help
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This options provides helpers to add the support to
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read and parse thermal data definitions out of the
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device tree blob.
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Say 'Y' here if you need to build thermal infrastructure
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based on device tree.
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choice
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prompt "Default Thermal governor"
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default THERMAL_DEFAULT_GOV_STEP_WISE
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help
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This option sets which thermal governor shall be loaded at
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startup. If in doubt, select 'step_wise'.
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config THERMAL_DEFAULT_GOV_STEP_WISE
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bool "step_wise"
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select THERMAL_GOV_STEP_WISE
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help
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Use the step_wise governor as default. This throttles the
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devices one step at a time.
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config THERMAL_DEFAULT_GOV_FAIR_SHARE
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bool "fair_share"
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select THERMAL_GOV_FAIR_SHARE
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help
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Use the fair_share governor as default. This throttles the
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devices based on their 'contribution' to a zone. The
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contribution should be provided through platform data.
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config THERMAL_DEFAULT_GOV_USER_SPACE
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bool "user_space"
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select THERMAL_GOV_USER_SPACE
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help
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Select this if you want to let the user space manage the
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platform thermals.
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endchoice
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config THERMAL_GOV_FAIR_SHARE
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bool "Fair-share thermal governor"
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help
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Enable this to manage platform thermals using fair-share governor.
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config THERMAL_GOV_STEP_WISE
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bool "Step_wise thermal governor"
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help
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Enable this to manage platform thermals using a simple linear
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governor.
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config THERMAL_GOV_BANG_BANG
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bool "Bang Bang thermal governor"
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default n
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help
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Enable this to manage platform thermals using bang bang governor.
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Say 'Y' here if you want to use two point temperature regulation
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used for fans without throttling. Some fan drivers depend on this
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governor to be enabled (e.g. acerhdf).
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config THERMAL_GOV_USER_SPACE
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bool "User_space thermal governor"
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help
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Enable this to let the user space manage the platform thermals.
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config CPU_THERMAL
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bool "generic cpu cooling support"
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depends on CPU_FREQ
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depends on THERMAL_OF
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help
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This implements the generic cpu cooling mechanism through frequency
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reduction. An ACPI version of this already exists
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(drivers/acpi/processor_thermal.c).
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This will be useful for platforms using the generic thermal interface
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and not the ACPI interface.
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If you want this support, you should say Y here.
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config THERMAL_EMULATION
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bool "Thermal emulation mode support"
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help
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Enable this option to make a emul_temp sysfs node in thermal zone
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directory to support temperature emulation. With emulation sysfs node,
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user can manually input temperature and test the different trip
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threshold behaviour for simulation purpose.
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WARNING: Be careful while enabling this option on production systems,
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because userland can easily disable the thermal policy by simply
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flooding this sysfs node with low temperature values.
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config IMX_THERMAL
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tristate "Temperature sensor driver for Freescale i.MX SoCs"
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depends on CPU_THERMAL
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depends on MFD_SYSCON
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depends on OF
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help
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Support for Temperature Monitor (TEMPMON) found on Freescale i.MX SoCs.
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It supports one critical trip point and one passive trip point. The
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cpufreq is used as the cooling device to throttle CPUs when the
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passive trip is crossed.
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config SPEAR_THERMAL
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bool "SPEAr thermal sensor driver"
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depends on PLAT_SPEAR
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depends on OF
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help
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Enable this to plug the SPEAr thermal sensor driver into the Linux
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thermal framework.
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config RCAR_THERMAL
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tristate "Renesas R-Car thermal driver"
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depends on ARCH_SHMOBILE || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Enable this to plug the R-Car thermal sensor driver into the Linux
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thermal framework.
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config KIRKWOOD_THERMAL
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tristate "Temperature sensor on Marvell Kirkwood SoCs"
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depends on MACH_KIRKWOOD
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depends on OF
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help
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Support for the Kirkwood thermal sensor driver into the Linux thermal
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framework. Only kirkwood 88F6282 and 88F6283 have this sensor.
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config DOVE_THERMAL
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tristate "Temperature sensor on Marvell Dove SoCs"
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depends on ARCH_DOVE || MACH_DOVE
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depends on OF
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help
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Support for the Dove thermal sensor driver in the Linux thermal
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framework.
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config DB8500_THERMAL
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bool "DB8500 thermal management"
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depends on ARCH_U8500
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default y
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help
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Adds DB8500 thermal management implementation according to the thermal
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management framework. A thermal zone with several trip points will be
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created. Cooling devices can be bound to the trip points to cool this
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thermal zone if trip points reached.
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config ARMADA_THERMAL
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tristate "Armada 370/XP thermal management"
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depends on ARCH_MVEBU
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depends on OF
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help
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Enable this option if you want to have support for thermal management
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controller present in Armada 370 and Armada XP SoC.
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config DB8500_CPUFREQ_COOLING
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tristate "DB8500 cpufreq cooling"
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depends on ARCH_U8500
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depends on CPU_THERMAL
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default y
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help
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Adds DB8500 cpufreq cooling devices, and these cooling devices can be
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bound to thermal zone trip points. When a trip point reached, the
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bound cpufreq cooling device turns active to set CPU frequency low to
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cool down the CPU.
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config INTEL_POWERCLAMP
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tristate "Intel PowerClamp idle injection driver"
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depends on THERMAL
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depends on X86
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depends on CPU_SUP_INTEL
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help
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Enable this to enable Intel PowerClamp idle injection driver. This
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enforce idle time which results in more package C-state residency. The
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user interface is exposed via generic thermal framework.
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config X86_PKG_TEMP_THERMAL
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tristate "X86 package temperature thermal driver"
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depends on X86_THERMAL_VECTOR
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select THERMAL_GOV_USER_SPACE
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default m
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help
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Enable this to register CPU digital sensor for package temperature as
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thermal zone. Each package will have its own thermal zone. There are
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two trip points which can be set by user to get notifications via thermal
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notification methods.
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config INTEL_SOC_DTS_THERMAL
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tristate "Intel SoCs DTS thermal driver"
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depends on X86 && IOSF_MBI
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help
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Enable this to register Intel SoCs (e.g. Bay Trail) platform digital
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temperature sensor (DTS). These SoCs have two additional DTSs in
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addition to DTSs on CPU cores. Each DTS will be registered as a
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thermal zone. There are two trip points. One of the trip point can
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be set by user mode programs to get notifications via Linux thermal
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notification methods.The other trip is a critical trip point, which
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was set by the driver based on the TJ MAX temperature.
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config INT340X_THERMAL
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tristate "ACPI INT340X thermal drivers"
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depends on X86 && ACPI
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select THERMAL_GOV_USER_SPACE
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select ACPI_THERMAL_REL
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select ACPI_FAN
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help
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Newer laptops and tablets that use ACPI may have thermal sensors and
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other devices with thermal control capabilities outside the core
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CPU/SOC, for thermal safety reasons.
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They are exposed for the OS to use via the INT3400 ACPI device object
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as the master, and INT3401~INT340B ACPI device objects as the slaves.
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Enable this to expose the temperature information and cooling ability
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from these objects to userspace via the normal thermal framework.
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This means that a wide range of applications and GUI widgets can show
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the information to the user or use this information for making
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decisions. For example, the Intel Thermal Daemon can use this
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information to allow the user to select his laptop to run without
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turning on the fans.
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config ACPI_THERMAL_REL
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tristate
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depends on ACPI
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menu "Texas Instruments thermal drivers"
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source "drivers/thermal/ti-soc-thermal/Kconfig"
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endmenu
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menu "Samsung thermal drivers"
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depends on ARCH_EXYNOS
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source "drivers/thermal/samsung/Kconfig"
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endmenu
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menu "STMicroelectronics thermal drivers"
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depends on ARCH_STI && OF
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source "drivers/thermal/st/Kconfig"
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endmenu
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endif
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