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r: 374610
b: refs/heads/master
c: fa3031d
h: refs/heads/master
v: v3
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Eduardo Valentin authored and Zhang Rui committed Apr 24, 2013
1 parent abceea8 commit c2d89ef
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2 changes: 1 addition & 1 deletion [refs]
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---
refs/heads/master: 8f578bfefdd13d28d5baf3345405c46b101fe2f5
refs/heads/master: fa3031d71795f355e6a766024a76e8276d9e6038
22 changes: 0 additions & 22 deletions trunk/Documentation/devicetree/bindings/thermal/armada-thermal.txt

This file was deleted.

8 changes: 4 additions & 4 deletions trunk/Documentation/thermal/exynos_thermal_emulation
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Expand Up @@ -13,11 +13,11 @@ Thermal emulation mode supports software debug for TMU's operation. User can set
manually with software code and TMU will read current temperature from user value not from
sensor's value.

Enabling CONFIG_THERMAL_EMULATION option will make this support available.
When it's enabled, sysfs node will be created as
/sys/devices/virtual/thermal/thermal_zone'zone id'/emul_temp.
Enabling CONFIG_EXYNOS_THERMAL_EMUL option will make this support in available.
When it's enabled, sysfs node will be created under
/sys/bus/platform/devices/'exynos device name'/ with name of 'emulation'.

The sysfs node, 'emul_node', will contain value 0 for the initial state. When you input any
The sysfs node, 'emulation', will contain value 0 for the initial state. When you input any
temperature you want to update to sysfs node, it automatically enable emulation mode and
current temperature will be changed into it.
(Exynos also supports user changable delay time which would be used to delay of
Expand Down
28 changes: 12 additions & 16 deletions trunk/Documentation/thermal/sysfs-api.txt
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Expand Up @@ -31,17 +31,15 @@ temperature) and throttle appropriate devices.
1. thermal sysfs driver interface functions

1.1 thermal zone device interface
1.1.1 struct thermal_zone_device *thermal_zone_device_register(char *type,
1.1.1 struct thermal_zone_device *thermal_zone_device_register(char *name,
int trips, int mask, void *devdata,
struct thermal_zone_device_ops *ops,
const struct thermal_zone_params *tzp,
int passive_delay, int polling_delay))
struct thermal_zone_device_ops *ops)

This interface function adds a new thermal zone device (sensor) to
/sys/class/thermal folder as thermal_zone[0-*]. It tries to bind all the
thermal cooling devices registered at the same time.

type: the thermal zone type.
name: the thermal zone name.
trips: the total number of trip points this thermal zone supports.
mask: Bit string: If 'n'th bit is set, then trip point 'n' is writeable.
devdata: device private data
Expand All @@ -59,12 +57,6 @@ temperature) and throttle appropriate devices.
will be fired.
.set_emul_temp: set the emulation temperature which helps in debugging
different threshold temperature points.
tzp: thermal zone platform parameters.
passive_delay: number of milliseconds to wait between polls when
performing passive cooling.
polling_delay: number of milliseconds to wait between polls when checking
whether trip points have been crossed (0 for interrupt driven systems).


1.1.2 void thermal_zone_device_unregister(struct thermal_zone_device *tz)

Expand Down Expand Up @@ -273,10 +265,6 @@ emul_temp
Unit: millidegree Celsius
WO, Optional

WARNING: Be careful while enabling this option on production systems,
because userland can easily disable the thermal policy by simply
flooding this sysfs node with low temperature values.

*****************************
* Cooling device attributes *
*****************************
Expand Down Expand Up @@ -375,7 +363,7 @@ This function returns the thermal_instance corresponding to a given
{thermal_zone, cooling_device, trip_point} combination. Returns NULL
if such an instance does not exist.

5.3:thermal_notify_framework:
5.3:notify_thermal_framework:
This function handles the trip events from sensor drivers. It starts
throttling the cooling devices according to the policy configured.
For CRITICAL and HOT trip points, this notifies the respective drivers,
Expand All @@ -387,3 +375,11 @@ platform data is provided, this uses the step_wise throttling policy.
This function serves as an arbitrator to set the state of a cooling
device. It sets the cooling device to the deepest cooling state if
possible.

5.5:thermal_register_governor:
This function lets the various thermal governors to register themselves
with the Thermal framework. At run time, depending on a zone's platform
data, a particular governor is used for throttling.

5.6:thermal_unregister_governor:
This function unregisters a governor from the thermal framework.
1 change: 1 addition & 0 deletions trunk/MAINTAINERS
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Expand Up @@ -7898,6 +7898,7 @@ F: arch/xtensa/

THERMAL
M: Zhang Rui <rui.zhang@intel.com>
M: Eduardo Valentin <eduardo.valentin@ti.com>
L: linux-pm@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux.git
S: Supported
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28 changes: 12 additions & 16 deletions trunk/drivers/thermal/Kconfig
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Expand Up @@ -67,16 +67,15 @@ config THERMAL_GOV_USER_SPACE
Enable this to let the user space manage the platform thermals.

config CPU_THERMAL
bool "generic cpu cooling support"
tristate "generic cpu cooling support"
depends on CPU_FREQ
select CPU_FREQ_TABLE
help
This implements the generic cpu cooling mechanism through frequency
reduction. An ACPI version of this already exists
(drivers/acpi/processor_thermal.c).
reduction, cpu hotplug and any other ways of reducing temperature. An
ACPI version of this already exists(drivers/acpi/processor_thermal.c).
This will be useful for platforms using the generic thermal interface
and not the ACPI interface.

If you want this support, you should say Y here.

config THERMAL_EMULATION
Expand All @@ -87,10 +86,6 @@ config THERMAL_EMULATION
user can manually input temperature and test the different trip
threshold behaviour for simulation purpose.

WARNING: Be careful while enabling this option on production systems,
because userland can easily disable the thermal policy by simply
flooding this sysfs node with low temperature values.

config SPEAR_THERMAL
bool "SPEAr thermal sensor driver"
depends on PLAT_SPEAR
Expand Down Expand Up @@ -122,6 +117,15 @@ config EXYNOS_THERMAL
If you say yes here you get support for TMU (Thermal Management
Unit) on SAMSUNG EXYNOS series of SoC.

config EXYNOS_THERMAL_EMUL
bool "EXYNOS TMU emulation mode support"
depends on EXYNOS_THERMAL
help
Exynos 4412 and 4414 and 5 series has emulation mode on TMU.
Enable this option will be make sysfs node in exynos thermal platform
device directory to support emulation mode. With emulation mode sysfs
node, you can manually input temperature to TMU for simulation purpose.

config DOVE_THERMAL
tristate "Temperature sensor on Marvell Dove SoCs"
depends on ARCH_DOVE
Expand All @@ -140,14 +144,6 @@ config DB8500_THERMAL
created. Cooling devices can be bound to the trip points to cool this
thermal zone if trip points reached.

config ARMADA_THERMAL
tristate "Armada 370/XP thermal management"
depends on ARCH_MVEBU
depends on OF
help
Enable this option if you want to have support for thermal management
controller present in Armada 370 and Armada XP SoC.

config DB8500_CPUFREQ_COOLING
tristate "DB8500 cpufreq cooling"
depends on ARCH_U8500
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10 changes: 4 additions & 6 deletions trunk/drivers/thermal/Makefile
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Expand Up @@ -3,15 +3,14 @@
#

obj-$(CONFIG_THERMAL) += thermal_sys.o
thermal_sys-y += thermal_core.o

# governors
thermal_sys-$(CONFIG_THERMAL_GOV_FAIR_SHARE) += fair_share.o
thermal_sys-$(CONFIG_THERMAL_GOV_STEP_WISE) += step_wise.o
thermal_sys-$(CONFIG_THERMAL_GOV_USER_SPACE) += user_space.o
obj-$(CONFIG_THERMAL_GOV_FAIR_SHARE) += fair_share.o
obj-$(CONFIG_THERMAL_GOV_STEP_WISE) += step_wise.o
obj-$(CONFIG_THERMAL_GOV_USER_SPACE) += user_space.o

# cpufreq cooling
thermal_sys-$(CONFIG_CPU_THERMAL) += cpu_cooling.o
obj-$(CONFIG_CPU_THERMAL) += cpu_cooling.o

# platform thermal drivers
obj-$(CONFIG_SPEAR_THERMAL) += spear_thermal.o
Expand All @@ -20,7 +19,6 @@ obj-$(CONFIG_KIRKWOOD_THERMAL) += kirkwood_thermal.o
obj-$(CONFIG_EXYNOS_THERMAL) += exynos_thermal.o
obj-$(CONFIG_DOVE_THERMAL) += dove_thermal.o
obj-$(CONFIG_DB8500_THERMAL) += db8500_thermal.o
obj-$(CONFIG_ARMADA_THERMAL) += armada_thermal.o
obj-$(CONFIG_DB8500_CPUFREQ_COOLING) += db8500_cpufreq_cooling.o
obj-$(CONFIG_INTEL_POWERCLAMP) += intel_powerclamp.o

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