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2020-01-31thermal: stm32: fix spelling mistake "preprare" -> "prepare"Colin Ian King1-1/+1
There is a spelling mistake in a dev_err error message. Fix it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200130100537.18069-1-colin.king@canonical.com
2020-01-31Documentation: cpu-idle-cooling: fix a SEVERE docs build failureRandy Dunlap1-0/+5
Sphinx ('make htmldocs') stops with a SEVERE error: Sphinx parallel build error: SystemMessage: /home/rdunlap/lnx/next/linux-next-20200120/Documentation/driver-api/thermal/cpu-idle-cooling.rst:69: (SEVERE/4) Unexpected section title. ^ | so fix the .rst file so that the SEVERE build error does not happen. Also fix another minor formatting warning (unexpected unindent). Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Amit Kucheria <amit.kucheria@verdurent.com> Cc: linux-pm@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/712c1152-56b5-307f-b3f3-ed03a30b804a@infradead.org
2020-01-27thermal: stm32: Fix low threshold interrupt floodPascal Paillet1-1/+2
With the STM32 thermal peripheral, it is not possible to dump the temperature that has caused the interrupt. When the temperature reaches the low threshold, we generally read a temperature that is a little bit higher than the low threshold. This maybe due to sampling precision, and also because the CPU becomes hotter when it quits WFI mode. In that case, the framework does not change the trip points. This leads to a lot of low threshold interrupts. The fix is to set the low threshold value 0.5 degrees Celsius below the actual request. The problem is not so frequent with the high threshold and it would no be a good idea to set the threshold value higher than the request. Signed-off-by: Pascal Paillet <p.paillet@st.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200110101605.24984-7-p.paillet@st.com
2020-01-27thermal: stm32: Improve temperature computingPascal Paillet1-44/+14
Change the way of computing to avoid rounds by 1 or 2 degrees. Also simplify the sampling time management that is hard-coded to maximum value during probe. Signed-off-by: Pascal Paillet <p.paillet@st.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200110101605.24984-6-p.paillet@st.com
2020-01-27thermal: stm32: Handle multiple trip pointsPascal Paillet1-212/+86
Let the thermal framework handle the trip points instead of custom code inside the driver. This is backward compatible, simplifies the driver and offers the possibility to the user to set any trip point he needs. stm_thermal_set_trips callback that is registered to set_trips ops to handle the low and high thresholds and replaces stm_thermal_set_threshold and stm_thermal_update_threshold functions. modify irq enable to handle the thresholds. Signed-off-by: Pascal Paillet <p.paillet@st.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200110101605.24984-5-p.paillet@st.com
2020-01-27thermal: stm32: Disable interrupts at probePascal Paillet1-5/+14
In case of CPU reset, the interrupts could be enabled at boot time. Disable interrupts and clear flags. Signed-off-by: Pascal Paillet <p.paillet@st.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200110101605.24984-4-p.paillet@st.com
2020-01-27thermal: stm32: Rework sensor mode managementPascal Paillet1-6/+4
Be sure get_temp returns an error while disabling or enabling the device. Set THERMAL_DEVICE_ENABLED state at the end of power on function. Set THERMAL_DEVICE_DISABLED state at the beginning of power off function. Signed-off-by: Pascal Paillet <p.paillet@st.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200110101605.24984-3-p.paillet@st.com
2020-01-27thermal: stm32: Fix icifr register namePascal Paillet1-5/+5
Fix a mistake with the ICIFR register name. Signed-off-by: Pascal Paillet <p.paillet@st.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200110101605.24984-2-p.paillet@st.com
2020-01-27thermal: of: Make thermal_zone_of_sensor_register return -ENODEV if a sensor OF node is missingPeter Mamonov1-1/+1
When devm_thermal_zone_of_sensor_register() is called from hwmon_thermal_add_sensor() it is possible that the relevant sensor is missing an OF node. In this case thermal_zone_of_sensor_register() returns -EINVAL which causes hwmon_thermal_add_sensor() to fail as well. This patch changes relevant return code of thermal_zone_of_sensor_register() to -ENODEV, which is tolerated by hwmon_thermal_add_sensor(). Here is a particular case of such behaviour: the Marvell ethernet PHYs driver registers hwmon device for the built-in temperature sensor (see drivers/net/phy/marvell.c). Since the sensor doesn't have associated OF node devm_hwmon_device_register() returns error which ultimately causes failure of the PHY driver's probe function. Signed-off-by: Peter Mamonov <pmamonov@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20190827143952.19591-1-pmamonov@gmail.com
2020-01-27thermal: rcar_gen3_thermal: Remove temperature boundNiklas Söderlund1-3/+1
The hardware manual states that the operation of the sensor is not guaranteed with temperatures above 125°C, not that the readings are invalid. Remove the bound check and try to deliver temperature readings even if we are outside the guaranteed operation range. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200117160554.3812787-3-niklas.soderlund+renesas@ragnatech.se
2020-01-27thermal: rcar_thermal: Remove temperature boundNiklas Söderlund1-6/+1
The hardware manual states that the operation of the sensor is not guaranteed outside the range of -45°C to 125°C, not that the readings are invalid. Remove the bound check and try to deliver temperature readings even if we are outside the guaranteed operation range. Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200117160554.3812787-2-niklas.soderlund+renesas@ragnatech.se
2020-01-27thermal: intel: intel_pch_thermal: Add Comet Lake (CML) platform supportGayatri Kammela1-0/+8
Add Comet Lake to the list of the platforms to support intel_pch_thermal driver. Cc: Zhang rui <rui.zhang@intel.com> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191211200043.4985-1-gayatri.kammela@intel.com
2020-01-27thermal: intel: Fix unmatched pci_release_regionChuhong Yuan1-1/+1
The driver calls pci_request_regions() in probe and uses pci_release_regions() in probe failure. However, it calls pci_release_region() in remove, which does match the other two calls. Use pci_release_regions() instead to unify them. Signed-off-by: Chuhong Yuan <hslester96@gmail.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191206075531.18637-1-hslester96@gmail.com
2020-01-27thermal: int340x: processor_thermal: Add Jasper Lake supportSwaminathan, Nivedita1-0/+4
Added new PCI id for Jasper Lake processor thermal device. Signed-off-by: Swaminathan, Nivedita <nivedita.swaminathan@intel.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Acked-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191212203025.36310-1-srinivas.pandruvada@linux.intel.com
2020-01-27dt-bindings: brcm,avs-ro-thermal: Fix binding check issuesStefan Wahren1-3/+6
Drop the reg property since this only necessary for the parent and add the missing thermal-sensor-cells property description. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Fixes: 37e9cc08e9678 ("dt-bindings: Add Broadcom AVS RO thermal") Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1579200077-17496-1-git-send-email-stefan.wahren@i2se.com
2020-01-27thermal: brcmstb_thermal: Register different ops per processFlorian Fainelli1-3/+12
Since we do not have interrupts on BCM7216, we cannot have trip point crossing, the thermal subsystem expects us to provide a NULL set_trips operation in that case, so make it possible to provide per-process thermal_zone_of_device_ops Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200114190607.29339-7-f.fainelli@gmail.com
2020-01-27thermal: brcmstb_thermal: Restructure interrupt registrationFlorian Fainelli1-10/+9
If we are successful grabbing the interrupt resource, then register an interrupt handler, this makes it easier to support the interrupt as being optional, which is it for 7216. Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200114190607.29339-6-f.fainelli@gmail.com
2020-01-27thermal: brcmstb_thermal: Add 16nm process thermal parametersFlorian Fainelli1-0/+6
Match the 7216 compatible string in order to derive the correct 16nm process thermal parameters to obtain correct readings. Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200114190607.29339-5-f.fainelli@gmail.com
2020-01-27dt-bindings: thermal: Define BCM7216 thermal sensor compatibleFlorian Fainelli1-2/+6
BCM7216 is a 16nm process STB chip, which requires a different compatible string to differentiate different temperature formulas. Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200114190607.29339-4-f.fainelli@gmail.com
2020-01-27thermal: brcmstb_thermal: Prepare to support a different processFlorian Fainelli1-14/+33
The driver is currently assuming that it is operating with a 28nm process chip, which has a specific formula to convert temperature to a code and vice versa. Update the code to support providing two key values: offset and multiplier to derive the correct formulas. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200114190607.29339-3-f.fainelli@gmail.com
2020-01-27thermal: brcmstb_thermal: Do not use DT coefficientsFlorian Fainelli1-22/+9
At the time the brcmstb_thermal driver and its binding were merged, the DT binding did not make the coefficients properties a mandatory one, therefore all users of the brcmstb_thermal driver out there have a non functional implementation with zero coefficients. Even if these properties were provided, the formula used for computation is incorrect. The coefficients are entirely process specific (right now, only 28nm is supported) and not board or SoC specific, it is therefore appropriate to hard code them in the driver given the compatibility string we are probed with which has to be updated whenever a new process is introduced. We remove the existing coefficients definition since subsequent patches are going to add support for a new process and will introduce new coefficients as well. Fixes: 9e03cf1b2dd5 ("thermal: add brcmstb AVS TMON driver") Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200114190607.29339-2-f.fainelli@gmail.com
2020-01-27thermal: rcar_thermal: Use usleep_range() instead of udelay()Geert Uytterhoeven1-1/+1
rcar_thermal_update_temp() takes a mutex, so it is always called in a context that can sleep. Hence replace the 300 µs busy loop by a call to usleep_range(), to allow other threads to run. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200115125417.5263-1-geert+renesas@glider.be
2020-01-27ARM: configs: Build BCM2711 thermal as moduleStefan Wahren2-0/+2
This builds the BCM2711 thermal driver as module for the Raspberry Pi 4. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1578941778-23321-5-git-send-email-stefan.wahren@i2se.com
2020-01-27ARM: dts: bcm2711: Enable thermalStefan Wahren1-0/+12
This enables thermal for the BCM2711 (used on Raspberry Pi 4) by adding the AVS monitor and a subnode for the thermal part. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1578941778-23321-4-git-send-email-stefan.wahren@i2se.com
2020-01-27thermal: Add BCM2711 thermal driverStefan Wahren3-0/+131
This adds the thermal sensor driver for the Broadcom BCM2711 SoC, which is placed on the Raspberry Pi 4. The driver only provides SoC temperature reading so far. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Tested-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1578941778-23321-3-git-send-email-stefan.wahren@i2se.com
2020-01-27dt-bindings: Add Broadcom AVS RO thermalStefan Wahren1-0/+45
Since the BCM2711 doesn't have a AVS TMON block, the thermal information must be retrieved from the AVS ring oscillator block. This block is part of the AVS monitor which contains a bunch of raw sensors. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Rob Herring <robh@kernel.org> Reviewed-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1578941778-23321-2-git-send-email-stefan.wahren@i2se.com
2020-01-27thermal: sun8i: Add hwmon supportYangtao Li1-0/+6
Expose sun8i thermal as a HWMON device. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191228171904.24618-1-tiny.windzz@gmail.com
2020-01-27thermal: sun8i: Remove unused variable and unneeded macrosYangtao Li1-6/+0
The cp_ft_flag variable is not used after initialization, so delete it. After that, THS_EFUSE_CP_FT_MASK, THS_EFUSE_CP_FT_BIT and THS_CALIBRATION_IN_FT are not needed, so delete them. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200112180925.23705-1-tiny.windzz@gmail.com
2020-01-27thermal: sun8i: Fix using plain integer as NULL pointer in sun8i_ths_resource_initYangtao Li1-1/+1
sparse returns a warning: "drivers/thermal/sun8i_thermal.c:341:60: sparse: sparse: Using plain integer as NULL pointer". Fix it by replacing the zero integer by a NULL pointer. Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200112171318.23025-1-tiny.windzz@gmail.com
2020-01-27thermal: sun8i: Fix r40 ths numberYangtao Li1-1/+1
According to the spec, r40 has 2 thermal sensors. Sensor0 located in the CPU, another in the GPU. Fixes: dccc5c3b6f30f ("thermal/drivers/sun8i: Add thermal driver for H6/H5/H3/A64/A83T/R40") Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Tested-by: Corentin Labbe <clabbe.montjoie@gmail.com> Tested-on: sun8i-r40-bananapi-m2-ultra Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200106174639.20862-1-tiny.windzz@gmail.com
2020-01-27thermal: exynos: Rename Samsung and Exynos to lowercaseKrzysztof Kozlowski4-7/+7
Fix up inconsistent usage of upper and lowercase letters in "Samsung" and "Exynos" names. "SAMSUNG" and "EXYNOS" are not abbreviations but regular trademarked names. Therefore they should be written with lowercase letters starting with capital letter. The lowercase "Exynos" name is promoted by its manufacturer Samsung Electronics Co., Ltd., in advertisement materials and on website. Although advertisement materials usually use uppercase "SAMSUNG", the lowercase version is used in all legal aspects (e.g. on Wikipedia and in privacy/legal statements on https://www.samsung.com/semiconductor/privacy-global/). Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200104152107.11407-7-krzk@kernel.org
2020-01-27thermal: generic-adc: silence info message for IIO_TEMP channelsMartin Blumenstingl1-1/+5
Since commit d36e2fa0253875 ("thermal: generic-adc: make lookup table optional") "generic-adc-thermal" can be used with an IIO_TEMP channel. In this case the following message is logged at probe time: no lookup table, assuming DAC channel returns milliCelcius Silence this info message if the channel type is known to be in milli celsius. Keep this message when the channel type is unknown or not of type temperature. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200107232044.889075-3-martin.blumenstingl@googlemail.com
2020-01-27thermal: generic-adc: silence "no lookup table" on deferred probeMartin Blumenstingl1-7/+7
A "generic-adc-thermal" without "temperature-lookup-table" is perfectly valid since commit d36e2fa0253875 ("thermal: generic-adc: make lookup table optional"). On deferred probe the message "no lookup table, assuming DAC channel returns milliCelcius" is still logged. Prevent this message on deferred probe of the IIO channel by first looking up the IIO channel. Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200107232044.889075-2-martin.blumenstingl@googlemail.com
2020-01-27dt-bindings: thermal: Add YAML schema for sun8i-thermal driver bindingsYangtao Li1-0/+160
sun8i-thermal driver supports thermal sensor in wide range of Allwinner SoCs. Add YAML schema for its bindings. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191219172823.1652600-3-anarsoul@gmail.com
2020-01-27thermal/drivers/sun8i: Add thermal driver for H6/H5/H3/A64/A83T/R40Yangtao Li4-0/+662
This patch adds the support for allwinner thermal sensor, within allwinner SoC. It will register sensors for thermal framework and use device tree to bind cooling device. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Ondrej Jirman <megous@megous.com> Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191219172823.1652600-2-anarsoul@gmail.com
2020-01-27thermal/drivers/of-thermal: Move the of_thermal_free_zone() to the init sectionDaniel Lezcano1-1/+1
The function of_thermal_free_zone() is only used the initialization function which all belonging to the init section. Move it also to the __init section. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191219222154.16100-2-daniel.lezcano@linaro.org
2020-01-27thermal/drivers/of-thermal: Make of_thermal_destroy_zones staticDaniel Lezcano2-34/+32
The function of_thermal_destroy_zones() is only used internally by the of_parse_thermal_zones() for rollbacking in case of error. Make it static and tag it as an __init function. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191219222154.16100-1-daniel.lezcano@linaro.org
2020-01-27thermal/drivers/cpu_cooling: Rename to cpufreq_coolingDaniel Lezcano6-8/+8
As we introduced the idle injection cooling device called cpuidle_cooling, let's be consistent and rename the cpu_cooling to cpufreq_cooling as this one mitigates with OPPs changes. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Link: https://lore.kernel.org/r/20191219225317.17158-3-daniel.lezcano@linaro.org
2020-01-27thermal/drivers/cpu_cooling: Introduce the cpu idle cooling driverDaniel Lezcano5-0/+261
The cpu idle cooling device offers a new method to cool down a CPU by injecting idle cycles at runtime. It has some similarities with the intel power clamp driver but it is actually designed to be more generic and relying on the idle injection powercap framework. The idle injection duration is fixed while the running duration is variable. That allows to have control on the device reactivity for the user experience. An idle state powering down the CPU or the cluster will allow to drop the static leakage, thus restoring the heat capacity of the SoC. It can be set with a trip point between the hot and the critical points, giving the opportunity to prevent a hard reset of the system when the cpufreq cooling fails to cool down the CPU. With more sophisticated boards having a per core sensor, the idle cooling device allows to cool down a single core without throttling the compute capacity of several cpus belonging to the same clock line, so it could be used in collaboration with the cpufreq cooling device. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/20191219225317.17158-2-daniel.lezcano@linaro.org
2020-01-27thermal/drivers/cpu_cooling: Add idle cooling device documentationDaniel Lezcano1-0/+189
Provide some documentation for the idle injection cooling effect in order to let people to understand the rational of the approach for the idle injection CPU cooling device. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/20191219225317.17158-1-daniel.lezcano@linaro.org
2020-01-27thermal: rockchip: Enable hwmonStefan Schaeckeler1-1/+11
By default, of-based thermal drivers do not enable hwmon. Explicitly enable hwmon for both, the soc and gpu temperature sensor. Signed-off-by: Stefan Schaeckeler <schaecsn@gmx.net> Tested-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191212061702.BFE2D6E85603@corona.crabdance.com
2020-01-27thermal: armada: Clear reset in armadaxp_initZak Hays1-0/+3
The reset bit needs to be cleared in the init sequence otherwise it holds the block in reset. Signed-off-by: Zachary Hays <zhays@lexmark.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/BN8PR10MB33797EECAC557B5018A0A6628C580@BN8PR10MB3379.namprd10.prod.outlook.com
2020-01-27thermal: armada: Fix register offsets for AXPZak Hays1-1/+1
As shown in its device tree, Armada XP has the control1 register at 0x184d0, not 0x182d0. Signed-off-by: Zachary Hays <zhays@lexmark.com> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/BN8PR10MB337990B7688320D736760BB68C580@BN8PR10MB3379.namprd10.prod.outlook.com
2020-01-27thermal/drivers/Kconfig: Convert the CPU cooling device to a choiceDaniel Lezcano3-6/+16
The next changes will add a new way to cool down a CPU by injecting idle cycles. With the current configuration, a CPU cooling device is the cpufreq cooling device. As we want to add a new CPU cooling device, let's convert the CPU cooling to a choice giving a list of CPU cooling devices. At this point, there is obviously only one CPU cooling device. There is no functional changes. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Link: https://lore.kernel.org/r/20191204153930.9128-1-daniel.lezcano@linaro.org
2020-01-27thermal: qoriq: Add hwmon supportAndrey Smirnov1-0/+6
Expose thermal readings as a HWMON device, so that it could be accessed using lm-sensors. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Lucas Stach <l.stach@pengutronix.de> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Angus Ainslie (Purism) <angus@akkea.ca> Cc: linux-imx@nxp.com Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191210164153.10463-13-andrew.smirnov@gmail.com
2020-01-27thermal_hwmon: Add devres wrapper for thermal_add_hwmon_sysfs()Andrey Smirnov2-0/+35
Add devres wrapper for thermal_add_hwmon_sysfs() to simplify driver code. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Lucas Stach <l.stach@pengutronix.de> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Angus Ainslie (Purism) <angus@akkea.ca> Cc: linux-imx@nxp.com Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191210164153.10463-12-andrew.smirnov@gmail.com
2020-01-27thermal: qoriq: Do not report invalid temperature readingAndrey Smirnov1-1/+18
Before returning measured temperature data to upper layer we need to make sure that the reading was marked as "valid" to avoid reporting bogus data. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Lucas Stach <l.stach@pengutronix.de> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Angus Ainslie (Purism) <angus@akkea.ca> Cc: linux-imx@nxp.com Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191210164153.10463-11-andrew.smirnov@gmail.com
2020-01-27thermal: qoriq: Enable all sensors before registering themAndrey Smirnov1-19/+12
Tmu_get_temp will get called as a part of sensor registration via devm_thermal_zone_of_sensor_register(). To prevent it from retruning bogus data we need to enable sensor monitoring before that. Looking at the datasheet (i.MX8MQ RM) there doesn't seem to be any harm in enabling them all, so, for the sake of simplicity, change the code to do just that. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Tested-by: Lucas Stach <l.stach@pengutronix.de> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Angus Ainslie (Purism) <angus@akkea.ca> Cc: linux-imx@nxp.com Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191210164153.10463-10-andrew.smirnov@gmail.com
2020-01-27thermal: qoriq: Convert driver to use regmap APIAndrey Smirnov1-130/+99
Convert driver to use regmap API, drop custom LE/BE IO helpers and simplify bit manipulation using regmap_update_bits(). This also allows us to convert some register initialization to use loops and adds convenient debug access to TMU registers via debugfs. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Lucas Stach <l.stach@pengutronix.de> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Angus Ainslie (Purism) <angus@akkea.ca> Cc: linux-imx@nxp.com Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191210164153.10463-9-andrew.smirnov@gmail.com
2020-01-27thermal: qoriq: Drop unnecessary drvdata cleanupAndrey Smirnov1-2/+0
Driver data of underlying struct device will be set to NULL by Linux's driver infrastructure. Clearing it here is unnecessary. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Tested-by: Lucas Stach <l.stach@pengutronix.de> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: Angus Ainslie (Purism) <angus@akkea.ca> Cc: linux-imx@nxp.com Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191210164153.10463-8-andrew.smirnov@gmail.com
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