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path: root/drivers/thermal
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2014-11-09imx: thermal: imx_get_temp might be called before sensor clock is preparedHeiner Kallweit
imx_get_temp might be called before the sensor clock is prepared thus resulting in a timeout of the first attempt to read temp: thermal thermal_zone0: failed to read out thermal zone 0 Happened to me on a Utilite Standard with IMX6 Dual SoC. Reason is that in imx_thermal_probe thermal_zone_device_register is called before the sensor clock is prepared. thermal_zone_device_register however calls thermal_zone_device_update which eventually calls imx_get_temp. Fix this by preparing the clock before calling thermal_zone_device_register. Signed-off-by: Heiner Kallweit <heiner.kallweit@web.de> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-07thermal: exynos: use correct offset for TMU_CONTROL register on Exynos5260Bartlomiej Zolnierkiewicz
In exynos5260_tmu_registers tmu_ctrl entry is erroneously assigned twice. The second assignment (to EXYNOS_TMU_REG_CONTROL1 define which represents 0x24 value) overrides the first one (to EXYNOS_TMU_REG_CONTROL define which represents 0x20 value) which results in the wrong (according to the Exynos5260 SoC documentation that I have) offset being used for TMU_CONTROL register. Fix it by removing the wrong assignment and then remove no longer used EXYNOS_TMU_REG_CONTROL1 define. Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Cc: Amit Daniel Kachhap <amit.daniel@samsung.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-07thermal: imx: correct driver load sequence for cpu coolingBai Ping
thermal driver should be regisetered after cpufreq driver has been registered and probed. Doing so is to make sure that thermal driver can get the max cpu cooling states correctly when calling get_property. Signed-off-by: Bai Ping <b51503@freescale.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-04Thermal/int3403: Fix thermal hysteresis unit conversionlan,Tianyu
Thermal hysteresis represents a temperature difference. But the original code treats it as a temperature value, Convert it from tenths of degree Kelvin to Milli-Celsius by deducing 273200. This is not right. Kelvin and Celsius have same degree size. From temperature difference view, the conversion between tenths of degree Kelvin unit and Milli-Celsius unit is just to multiply 100. Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-03Thermal:Remove usless if(!result) before return tzYao Dongdong
result is always zero when comes here. Signed-off-by: Yao Dongdong <yaodongdong@huawei.com> Acked-by: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: fix IRQ clearing on TMU initializationBartlomiej Zolnierkiewicz
* Factor out code for clearing raised IRQs from exynos_tmu_work() to exynos_tmu_clear_irqs(). * Add a comment about documentation bugs to exynos_tmu_clear_irqs(). [ The documentation for Exynos3250, Exynos4412, Exynos5250 and Exynos5260 incorrectly states that INTCLEAR register has a different placing of bits responsible for FALL IRQs than INTSTAT register. Exynos5420 and Exynos5440 documentation is correct (Exynos4210 doesn't support FALL IRQs at all). ] * Use exynos_tmu_clear_irqs() in exynos_tmu_initialize() instead of open-coded code trying to clear IRQs according to predefined masks. After this change exynos_tmu_initialize() just clears IRQs that are raised like it is already done in exynos_tmu_work(). As a nice side-effect the code now uses the correct offset (16 instead of 12) for bits responsible for clearing FALL IRQs in INTCLEAR register on Exynos3250, Exynos4412 and Exynos5250. * Remove no longer needed intclr_rise_[mask,shift] and intclr_fall_[mask,shift] fields from struct exynos_tmu_registers. * Remove no longer needed defines. This patch has been tested on Exynos4412 and Exynos5420 SoCs. Cc: Amit Daniel Kachhap <amit.daniel@samsung.com> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: fix multiple disbalanced device node countersVladimir Zapolskiy
Here on function return all temporarily used device nodes shall decrement their usage counter. The problems are found with device nodes allocated by for_each_child_of_node(), of_parse_phandle() and of_find_node_by_name(), fix all problems at once. Signed-off-by: Vladimir Zapolskiy <vz@mleia.com> Cc: devicetree@vger.kernel.org Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: Add support for TRIM_RELOAD feature at Exynos3250Chanwoo Choi
This patch add support for TRIM_RELOAD feature at Exynos3250. The TMu of Exynos3250 has two TRIMINFO_CON register and must need to set RELOAD bit before reading TRIMINFO register. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Amit Daniel Kachhap <amit.daniel@samsung.com> Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: Add support for many TRIMINFO_CTRL registersChanwoo Choi
This patch support many TRIMINFO_CTRL registers if specific Exynos SoC has one more TRIMINFO_CTRL registers. Also this patch uses proper 'RELOAD' shift/mask bit operation to set RELOAD feature instead of static value. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Amit Daniel Kachhap <amit.daniel@samsung.com> Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: samsung: Exynos5260 and Exynos5420 should not use TRIM_RELOAD flagBartlomiej Zolnierkiewicz
Currently these SoCs claim TRIM_RELOAD support but don't have triminfo_ctrl register address defined in their struct exynos_tmu_registers entries. This causes incorrect write of value "1" to data->base + 0x00 address (which happens to be TRIMINFO register). Additionally according to the documentation that I have neither Exynos5260 nor Exynos5420 support/require TRIM_RELOAD feature. Thus fix the aforementioned issue by removing TMU_SUPPORT_TRIM_RELOAD flag for both Exynos5260 and Exynos5420. Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Cc: Amit Daniel Kachhap <amit.daniel@samsung.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: remove identical values from exynos*_tmu_registers structuresBartlomiej Zolnierkiewicz
There is no need for abstracting configuration for registers that are identical on all SoC types. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: remove redundant pdata checks from exynos_tmu_control()Bartlomiej Zolnierkiewicz
pdata->reference_voltage and pdata->gain are always defined to non-zero values so remove the redundant checks from exynos_tmu_control(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: cache non_hw_trigger_levels in pdataBartlomiej Zolnierkiewicz
Cache number of non-hardware trigger levels in a new pdata field (non_hw_trigger_levels) and convert code in exynos_tmu_initialize() accordingly. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: simplify temp_to_code() and code_to_temp()Bartlomiej Zolnierkiewicz
* Remove dead temp check from temp_to_code() (this function users in exynos_tmu_initialize() always pass correct temperatures and exynos_tmu_set_emulation() returns early for EXYNOS4210 because TMU_SUPPORT_EMULATION flag is not set on this SoC). * Move temp_code check from code_to_temp() to exynos_tmu_read() (code_to_temp() only user). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: remove redundant threshold_code checks from ↵Bartlomiej Zolnierkiewicz
exynos_tmu_initialize() Remove runtime checks for negative return values of temp_to_code() from exynos_tmu_initialize(). The current level temperature data hardcoded in pdata will never cause a negative temp_to_code() return values and checking itself is not proper. The checks in question are done at runtime in a production code for data that is hardcoded inside driver during development time and later it doesn't change. Such data should be verified during development and review time (i.e. by a script parsing relevant data from exynos_tmu_data.c, one can also argue that verification to be done is so simple that the review by a maintainer should be enough). Theres should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: remove redundant pdata checks from exynos_tmu_initialize()Bartlomiej Zolnierkiewicz
Remove runtime checks for pdata sanity from exynos_tmu_initialize(). The current values hardcoded in pdata will never trigger the checks and checking itself is not proper. The checks in question are done at runtime in a production code for data that is hardcoded inside driver during development time and later it doesn't change. Such data should be verified during development and review time (i.e. by a script parsing relevant data from exynos_tmu_data.c, one can also argue that verification to be done is so simple that the review by a maintainer should be enough). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: remove dead code for HW_MODE calibrationBartlomiej Zolnierkiewicz
The commit 1928457 ("thermal: exynos: Add hardware mode thermal calibration support") has added HW_MODE feature but it has never been enabled. As such it has been a dead code for over a year now and should be removed from the kernel. We don't keep the unused/untested features in the kernel just in case that some future hardware might need it. Such code has a real maintainance cost (all other code changes have to take the dead code into account) and usually makes future changes more difficult, not easier (i.e. recent additions of Exynos5420 SoC and Exynos5260 SoC thermal support has not made use of any of the driver's currently unused/untested features, moreover the recently added code is more complex than needed because of the existing dead code). Also all removed dead code is still accessible in the kernel git repository and can be easily brought back if/when needed. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-11-02thermal: exynos: remove unused struct exynos_tmu_registers entriesBartlomiej Zolnierkiewicz
Remove unused / write-only entries from struct exynos_tmu_registers. Then remove unused defines while at it. We don't keep the unused/untested features in the kernel just in case that some future hardware might need it. Such code has a real maintainance cost (all other code changes have to take the dead code into account) and usually makes future changes more difficult, not easier (i.e. recent additions of Exynos5420 SoC and Exynos5260 SoC thermal support has not made use of any of the driver's currently unused/untested features, moreover the recently added code is more complex than needed because of the existing dead code). Also all removed dead code is still accessible in the kernel git repository and can be easily brought back if/when needed. There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Tested-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-10-24Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux 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 ...
2014-10-17Merge branch 'int340x-thermal' of .git into nextZhang Rui
2014-10-17Thermal: int340x thermal: select ACPI fan driverZhang Rui
we share the same driver for both ACPI predefined Fan device and INT3404 Fan device, thus we should select the ACPI Fan driver when int340x thermal drivers are enabeld. Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-10-14thermal: replace strnicmp with strncasecmpRasmus Villemoes
The kernel used to contain two functions for length-delimited, case-insensitive string comparison, strnicmp with correct semantics and a slightly buggy strncasecmp. The latter is the POSIX name, so strnicmp was renamed to strncasecmp, and strnicmp made into a wrapper for the new strncasecmp to avoid breaking existing users. To allow the compat wrapper strnicmp to be removed at some point in the future, and to avoid the extra indirection cost, do s/strnicmp/strncasecmp/g. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Acked-by: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-10-11Thermal: int3400_thermal: use acpi_thermal_rel parsing APIsJacob Pan
ACPI _TRT and _ART parsing code has been moved to acpi_thermal_rel such that it can be used by other devices in the future. Use the parsing APIs in acpi_thermal_rel.c instead. Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-10-11Thermal: int340x_thermal: expose acpi thermal relationship tablesJacob Pan
ACPI 4.0 introduced two thermal relationship tables via _ART (active cooling) and _TRT (passive cooling) objects. These tables contain many to many relationships among thermal sensors and cooling devices. This patch parses _ART and _TRT and makes the result available to the userspace via an misc device interface. At the same time, kernel drivers can also request parsing results from internal kernel APIs. The results include source and target devices, influence, and sampling rate in case of _TRT. For _ART, the result shows source device, target device, and weight percentage. Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-10-11Thermal: introduce int3403 thermal driverLan Tianyu
ACPI INT3403 device object can be used to retrieve temperature date from temperature sensors present in the system, and to expose device' performance control. The previous INT3403 thermal driver supports temperature reporting only, thus remove it and introduce this new & enhanced one. Signed-off-by: Lan Tianyu <tianyu.lan@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-10-11Merge branch 'thermal-core-fix' of .git into nextZhang Rui
2014-10-10Thermal: introduce INT3402 thermal driverAaron Lu
ACPI INT3402 device object could report temperature for the memory module. To expose such information to user space, a thermal zone device is registered for it so that the thermal sysfs interface can expose such information for userspace to use. Signed-off-by: Aaron Lu <aaron.lu@intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-10-10Thermal: int3400 thermal: register to thermal frameworkZhang Rui
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-10-10Thermal: int3400 thermal: add capability to detect supporting UUIDsZhang Rui
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-10-10Thermal: introduce int3400 thermal driverZhang Rui
Introduce int3400 thermal driver. And make INT3400 driver enumerate the other int340x thermal components shown in _ART/_TRT. Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-10-09thermal: step_wise: fix: Prevent from binary overflow when trend is droppingLukasz Majewski
It turns out that some boards can have instance->lower greater than 0 and when thermal trend is dropping it results with next_target equal to -1. Since the next_target is defined as unsigned long it is interpreted as 0xFFFFFFFF and larger than instance->upper. As a result the next_target is set to instance->upper which ramps up to maximal cooling device target when the temperature is steadily decreasing. Signed-off-by: Lukasz Majewski <l.majewski@samsung.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-09-18Merge branches 'eduardo-soc' and 'bang-bang-governor' of .git into nextZhang Rui
2014-09-11ACPI: introduce ACPI int340x thermal scan handlerZhang Rui
Newer laptops and tablets that use ACPI may have thermal sensors and other devices with thermal control capabilities outside the core CPU/SOC, for thermal safety reasons. They are exposed for the OS to use via 1) INT3400 ACPI device object as the master. 2) INT3401 ~ INT340B ACPI device objects as the slaves. This patch introduces a scan handler to enumerate the INT3400 ACPI device object to platform bus, and prevent its slaves from being enumerated before the controller driver being probed. Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-09-09thermal: Remove ARCH_KIRKWOOD dependencyAndrew Lunn
mach-kirkwood has been removed, now that kirkwood lives in mach-mvebu. Depend on MACH_KIRKWOOD, which will be set when kirkwood is built as part of ARCH_MVEBU. Signed-off-by: Andrew Lunn <andrew@lunn.ch> Cc: Zhang Rui <rui.zhang@intel.com> Cc: linux-pm@vger.kernel.org Acked-by: Eduardo Valentin <edubezval@gmail.com> Link: https://lkml.kernel.org/r/1409417172-6846-4-git-send-email-andrew@lunn.ch Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2014-08-27thermal: Added Bang-bang thermal governorPeter Feuerer
The bang-bang thermal governor uses a hysteresis to switch abruptly on or off a cooling device. It is intended to control fans, which can not be throttled but just switched on or off. Bang-bang cannot be set as default governor as it is intended for special devices only. For those special devices the driver needs to explicitely request it. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Andreas Mohr <andi@lisas.de> Cc: Borislav Petkov <bp@suse.de> Cc: Javi Merino <javi.merino@arm.com> Cc: linux-pm@vger.kernel.org Signed-off-by: Peter Feuerer <peter@piie.net> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-08-09Thermal: imx: add i.mx6sx thermal supportAnson Huang
i.MX6SX has some new features of thermal interrupt function, there are LOW, HIGH and PANIC irq for thermal sensor, so add platform data to separate different thermal version; The reset value of LOW ALARM is 0 which means the highest temp, so the LOW ALARM will be triggered once irq is enabled, so we need to correct it before enabling thermal irq; Enable PANIC ALARM as critical trip point, it will trigger system reset via SRC module once PANIC IRQ is triggered, it is pure hardware function, so use it instead of software reset by cooling device. Signed-off-by: Anson Huang <b20788@freescale.com> Tested-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-07-29thermal: add support to disable thermal zone from DTSLaxman Dewangan
Add support to check status of the thermal zone before registering the zone. This will help on disabling some non-existing thermal zone from the top level DTS file out of common dtsi thermalzone file. For example, we have 3 platforms almost same but thermal zones on this platform are little bit different. Platform 1 and 2 have three thermal zones and platform 3 has two thermal zones. To avoid duplication of the thermal zones entries on each DTS file of platforms,we created one common dtsi file for thermal zone and included this dtsi file from these 3 platform's top level dts file. On common thermal zone com dtsi file, all thermal zone are enabled and need to disable one of thermal zone on platform 3 dts file. For this, we just added entry status = "disabled" for that thermal zone on platform 3 dts file and along with this change to make it work. This way, we reuse the common file and control the enable/disable of the thermal zone from top level dts file. Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-07-29thermal: trace: Trace when temperature is above a trip pointPunit Agrawal
Create a new event to trace when the temperature is above a trip point. Use the trace-point when handling non-critical and critical trip pionts. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-07-29thermal: trace: Trace when a cooling device's state is updatedPunit Agrawal
Introduce and use an event to trace when a cooling device's state is updated. This is useful to follow the effect of governor decisions on cooling devices. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-07-29thermal: trace: Trace temperature changesPunit Agrawal
Create a new event to trace the temperature of a thermal zone. Using this event trace the temperature changes of the thermal zone every-time it is updated. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Signed-off-by: Punit Agrawal <punit.agrawal@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2014-07-22Merge branches 'exynos-fix', 'for-rc', 'int3403-fix', 'misc', 'rcar-thermal' ↵Zhang Rui
and 'sti-thermal' of .git into next
2014-07-22thermal: cpu_cooling: fix typo highjack -> hijackJavi Merino
Cc: Eduardo Valentin <eduardo.valentin@ti.com> Cc: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-07-15thermal: samsung: Add TMU support for Exynos3250 SoCChanwoo Choi
This patch add registers, bit fields and compatible strings for Exynos3250 TMU (Thermal Management Unit). Exynos3250 uses the Cortex-A7 dual cores and has a target speed of 1.0 GHz. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> [Add MUX address setting bits by Jonghwa Lee] Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Amit Daniel Kachhap<amit.daniel@samsung.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-07-15thermal: exynos: fix ordering in exynos_tmu_remove()Bartlomiej Zolnierkiewicz
It might not be a problem currently but unregister/uninitialize things in the reverse order that they are registered/initialized. Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Reviewed-by: Amit Daniel Kachhap <amit.daniel@samsung.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-07-15thermal: allow building dove_thermal with mvebuRiku Voipio
DT-enabled Dove has moved from ARCH_DOVE in mach-dove to MACH_DOVE in mach-mvebu. As non-DT ARCH_DOVE will stay to rot for a while, add a new DT-only MACH_DOVE to thermal Kconfig. This was originally supposed to go in via "ARM: dove: prepare new Dove DT Kconfig" patch from Sebastian Hesselbarth for 3.15, but slipped through the cracks. I've tested on CuBox that without this patch you can't compile dove_thermal into a mach-mvebu based kernel, and with this patch I can build the driver and it works as expected run-time. v2: non-ascii char creeped in somehow Signed-off-by: Riku Voipio <riku.voipio@linaro.org> Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: linux-pm@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-07-15thermal: sti: Add support for ST's Memory Mapped based Thermal controllerLee Jones
This is the traditional way of obtaining a device driver's register address space. The aim of this driver is to supply controller specific information to the ST Thermal Core. Signed-off-by: Ajit Pal Singh <ajitpal.singh@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-07-15thermal: sti: Add support for ST's System Config Register based Thermal ↵Lee Jones
controller Supply controller specific information to the ST Thermal Core. Signed-off-by: Ajit Pal Singh <ajitpal.singh@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-07-15thermal: sti: Introduce ST Thermal core codeLee Jones
This core is shared by both ST's 'memory mapped' and 'system configuration register' based Thermal controllers. Signed-off-by: Ajit Pal Singh <ajitpal.singh@st.com> Signed-off-by: Lee Jones <lee.jones@linaro.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-07-01thermal: ti-soc-thermal: ti-bandgap.c: Cleaning up wrong address is checkedRickard Strandqvist
Wrong address is checked after memory allocation. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2014-07-01Thermal: imx: correct critical trip temperature settingAnson Huang
On latest i.MX6 SOC with thermal calibration data of 0x5A100000, the critical trip temperature will be an invalid value and cause system auto shutdown as below log: thermal thermal_zone0: critical temperature reached(42 C),shutting down So, with universal formula for thermal sensor, only room temperature point is calibrated, which means the calibration data read from fuse only has valid data of bit [31:20], others are all 0, the critical trip point temperature can NOT depend on the hot point calibration data, here we set it to 20 C higher than default passive temperature. Signed-off-by: Anson Huang <b20788@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>