01 Mar, 2013
1 commit
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Pull thermal management updates from Zhang Rui:
"Highlights:- introduction of Dove thermal sensor driver.
- introduction of Kirkwood thermal sensor driver.
- introduction of intel_powerclamp thermal cooling device driver.
- add interrupt and DT support for rcar thermal driver.
- add thermal emulation support which allows platform thermal driver
to do software/hardware emulation for thermal issues."* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (36 commits)
thermal: rcar: remove __devinitconst
thermal: return an error on failure to register thermal class
Thermal: rename thermal governor Kconfig option to avoid generic naming
thermal: exynos: Use the new thermal trend type for quick cooling action.
Thermal: exynos: Add support for temperature falling interrupt.
Thermal: Dove: Add Themal sensor support for Dove.
thermal: Add support for the thermal sensor on Kirkwood SoCs
thermal: rcar: add Device Tree support
thermal: rcar: remove machine_power_off() from rcar_thermal_notify()
thermal: rcar: add interrupt support
thermal: rcar: add read/write functions for common/priv data
thermal: rcar: multi channel support
thermal: rcar: use mutex lock instead of spin lock
thermal: rcar: enable CPCTL to use hardware TSC deciding
thermal: rcar: use parenthesis on macro
Thermal: fix a build warning when CONFIG_THERMAL_EMULATION cleared
Thermal: fix a wrong comment
thermal: sysfs: Add a new sysfs node emul_temp for thermal emulation
PM: intel_powerclamp: off by one in start_power_clamp()
thermal: exynos: Miscellaneous fixes to support falling threshold interrupt
...
28 Feb, 2013
1 commit
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Convert to the much saner new idr interface.
Signed-off-by: Tejun Heo
Cc: Zhang Rui
Signed-off-by: Andrew Morton
Signed-off-by: Linus Torvalds
06 Feb, 2013
1 commit
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"level" parameter of get_cpu_frequency equals cooling state
of cpu cooling device, and it starts from 0.Fix the misleading comment.
Signed-off-by: Zhang Rui
22 Nov, 2012
1 commit
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There are predefined cpu_masks that are const data structures.
This patch changes the cpu cooling register function so that
those const cpu_masks can be used, without compilation warnings.include/linux/cpumask.h
* The following particular system cpumasks and operations manage
* possible, present, active and online cpus.
*
* cpu_possible_mask- has bit 'cpu' set iff cpu is populatable
* cpu_present_mask - has bit 'cpu' set iff cpu is populated
* cpu_online_mask - has bit 'cpu' set iff cpu available to scheduler
* cpu_active_mask - has bit 'cpu' set iff cpu available to migration
*Signed-off-by: Eduardo Valentin
Signed-off-by: Zhang Rui
15 Nov, 2012
1 commit
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Silences the following sparse warning:
drivers/thermal/cpu_cooling.c:67:31: warning:
symbol 'notify_device' was not declared. Should it be static?Signed-off-by: Sachin Kamat
Signed-off-by: Zhang Rui
07 Nov, 2012
3 commits
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Problem of using this list is that the cpufreq_get_max_state callback will be
called when register cooling device by thermal_cooling_device_register, but
this list isn't ready at this moment. What's more, there is no need to maintain
such a list, we can get cpufreq_cooling_device instance by the private
thermal_cooling_device.devdata.Signed-off-by: hongbo.zhang
Reviewed-by: Francesco Lavra
Reviewed-by: Amit Daniel Kachhap
Signed-off-by: Zhang Rui -
In the while loop for counting cpu frequencies, if table[i].frequency equals
CPUFREQ_ENTRY_INVALID, index i won't be increased, so this leads to an endless
loop, what's more the index i cannot be referred as cpu frequencies number if
there is CPUFREQ_ENTRY_INVALID case.Signed-off-by: hongbo.zhang
Reviewed-by: Viresh Kumar
Reviewed-by: Amit Daniel Kachhap
Signed-off-by: Zhang Rui -
The curly bracket should be aligned with corresponding if else statements.
Signed-off-by: hongbo.zhang
Reviewed-by: Viresh Kumar
Signed-off-by: Zhang Rui
09 Oct, 2012
1 commit
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Conflicts:
drivers/staging/omap-thermal/omap-thermal-common.
OMAP supplied dummy TC1 and TC2,
at the same time that the thermal tree removed them
from thermal_zone_device_register()drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
propogate the upstream MAX_IDR_LEVEL re-name
to prevent a build failurePreviously-fixed-by: Stephen Rothwell
Signed-off-by: Len Brown
27 Sep, 2012
1 commit
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This patch fixes small bug on cpu_cooling. CPU cooling device has own
id generated with idr mathod. However in the previous version, it swapped
to all same id at last stage of probing as 0. This makes id's collision and
also occures error when it releases that id.Signed-off-by: Jonghwa Lee
24 Sep, 2012
1 commit
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This patchset introduces a new generic cooling device based on cpufreq
that can be used on non-ACPI platforms. As a proof of concept, we have
drivers for the following platforms using this mechanism now:* Samsung Exynos (Exynos4 and Exynos5) in the current patchset.
* Freescale i.MX (git://git.linaro.org/people/amitdanielk/linux.git imx6q_thermal)There is a small change in cpufreq cooling registration APIs, so a minor
change is needed for Freescale platforms.Brief Description:
1) The generic cooling devices code is placed inside driver/thermal/*
as placing inside acpi folder will need un-necessary enabling of acpi
code. This code is architecture independent.2) This patchset adds generic cpu cooling low level implementation
through frequency clipping. In future, other cpu related cooling
devices may be added here. An ACPI version of this already exists
(drivers/acpi/processor_thermal.c) .But this will be useful for
platforms like ARM using the generic thermal interface along with the
generic cpu cooling devices. The cooling device registration API's
return cooling device pointers which can be easily binded with the
thermal zone trip points. The important APIs exposed are,a) struct thermal_cooling_device *cpufreq_cooling_register(
struct cpumask *clip_cpus)
b) void cpufreq_cooling_unregister(struct thermal_cooling_device *cdev)3) Samsung exynos platform thermal implementation is done using the
generic cpu cooling APIs and the new trip type. The temperature sensor
driver present in the hwmon folder(registered as hwmon driver) is moved
to thermal folder and registered as a thermal driver.A simple data/control flow diagrams is shown below,
Core Linux thermal Exynos thermal interface
Cc: Guenter Roeck
Cc: SangWook Ju
Cc: Durgadoss
Cc: Len Brown
Cc: Jean Delvare
Cc: Kyungmin Park
Cc: Kukjin Kim
Signed-off-by: Andrew Morton
Signed-off-by: Amit Daniel Kachhap
Signed-off-by: Zhang Rui
