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path: root/drivers/thermal/qoriq_thermal.c
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2020-05-29thermal: qoriq: Update the settings for TMUv2Yuantian Tang
For TMU v2, TMSAR registers need to be set properly to get the accurate temperature values. Also the temperature read needs to be converted to degree Celsius since it is in degrees Kelvin. Signed-off-by: Yuantian Tang <andy.tang@nxp.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200526060212.4118-1-andy.tang@nxp.com
2020-03-20thermal: qoriq: Sort includes alphabeticallyAnson Huang
Sort includes alphabetically for consistency, and take this chance to remove unused include of of_address.h. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1583903252-2058-2-git-send-email-Anson.Huang@nxp.com
2020-03-20thermal: qoriq: Use devm_add_action_or_reset() to handle all cleanupsAnson Huang
Use devm_add_action_or_reset() to handle all cleanups of failure in .probe and .remove, then .remove callback can be dropped. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1583903252-2058-1-git-send-email-Anson.Huang@nxp.com
2020-01-27thermal: qoriq: Add hwmon supportAndrey Smirnov
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: qoriq: Do not report invalid temperature readingAndrey Smirnov
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 Smirnov
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 Smirnov
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 Smirnov
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
2020-01-27thermal: qoriq: Pass data to qoriq_tmu_calibration() directlyAndrey Smirnov
We can simplify error cleanup code if instead of passing a "struct platform_device *" to qoriq_tmu_calibration() and deriving a bunch of pointers from it, we pass those pointers directly. This way we won't be force to call platform_set_drvdata() as early in qoriq_tmu_probe() and need to have "platform_set_drvdata(pdev, NULL);" in error path. 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/20191210164153.10463-7-andrew.smirnov@gmail.com
2020-01-27thermal: qoriq: Pass data to qoriq_tmu_register_tmu_zone() directlyAndrey Smirnov
Pass all necessary data to qoriq_tmu_register_tmu_zone() directly instead of passing a platform device and then deriving it. This is done as a first step to simplify resource deallocation code. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Acked-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/20191210164153.10463-6-andrew.smirnov@gmail.com
2020-01-27thermal: qoriq: Embed per-sensor data into struct qoriq_tmu_dataAndrey Smirnov
Embed per-sensor data into struct qoriq_tmu_data so we can drop the code allocating it. This also allows us to get rid of per-sensor back reference to struct qoriq_tmu_data since now its address can be calculated using container_of(). Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Zhang Rui <rui.zhang@intel.com> 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/20191210164153.10463-5-andrew.smirnov@gmail.com
2020-01-27thermal: qoriq: Add local struct qoriq_sensor pointerAndrey Smirnov
Add local struct qoriq_sensor pointer in qoriq_tmu_register_tmu_zone() for brevity. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: Chris Healy <cphealy@gmail.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Zhang Rui <rui.zhang@intel.com> 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/20191210164153.10463-4-andrew.smirnov@gmail.com
2020-01-27thermal: qoriq: Don't store struct thermal_zone_device referenceAndrey Smirnov
Struct thermal_zone_device reference stored as sensor's private data isn't really used anywhere in the code. Drop it. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Acked-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/20191210164153.10463-3-andrew.smirnov@gmail.com
2020-01-27thermal: qoriq: Add local struct device pointerAndrey Smirnov
Use a local "struct device *dev" for brevity. No functional change intended. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Acked-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/20191210164153.10463-2-andrew.smirnov@gmail.com
2019-11-07thermal: qoriq: add thermal monitor unit version 2 supportYuantian Tang
Thermal Monitor Unit v2 is introduced on new Layscape SoC. Compared to v1, TMUv2 has a little different register layout and digital output is fairly linear. Signed-off-by: Yuantian Tang <andy.tang@nxp.com> Reviewed-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20191011020534.334-1-andy.tang@nxp.com
2019-08-28thermal: qoriq: Use __maybe_unused instead of #if CONFIG_PM_SLEEPAnson Huang
Use __maybe_unused for power management related functions instead of #if CONFIG_PM_SLEEP to simply the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: qoriq: Use devm_platform_ioremap_resource() instead of of_iomap()Anson Huang
Use devm_platform_ioremap_resource() instead of of_iomap() to save the iounmap() call in error handle path; Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: qoriq: Fix error path of calling qoriq_tmu_register_tmu_zone failAnson Huang
When registering tmu zone failed, the error path should be err_tmu instead of err_iomap, as iounmap() needs to be called. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-08-28thermal: qoriq: Add clock operationsAnson Huang
Some platforms like i.MX8MQ has clock control for this module, need to add clock operations to make sure the driver is working properly. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Guido Günther <agx@sigxcpu.org> Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-05-14thermal: qoriq: Remove unnecessary DT node is NULL checkAndrey Smirnov
It's impossible to use this driver outside of Device Tree, so if the probe function is called, the dev.of_node is guaranteed to not be NULL and guarding against that is pointless. Drop it. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> 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: Eduardo Valentin <edubezval@gmail.com>
2019-02-05thermal: qoriq: add multiple sensors supportYuantian Tang
The QorIQ Layerscape SoC has several thermal sensors but the current driver only supports one. Massage the code to be sensor oriented and allow the support for multiple sensors. Signed-off-by: Yuantian Tang <andy.tang@nxp.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-10-26Merge branch 'linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal Pull thermal SoC updates from Eduardo Valentin: "Several new things coming up. Specifics: - Rework of tsens and hisi thermal drivers - OF-thermal now allows sharing multiple cooling devices on maps - Added support for r8a7744 and R8A77970 on rcar thermal driver - Added support for r8a774a1 on rcar_gen3 thermal driver - New thermal driver stm32 - Fixes on multiple thermal drivers: of-thermal, imx, qoriq, armada, qcom-spmi, rcar, da9062/61" * 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: (41 commits) thermal: da9062/61: Prevent hardware access during system suspend thermal: rcar_thermal: Prevent doing work after unbind thermal: rcar_thermal: Prevent hardware access during system suspend thermal: rcar_gen3_thermal: add R8A77980 support dt-bindings: thermal: rcar-gen3-thermal: document R8A77980 bindings thermal: add stm32 thermal driver dt-bindings: stm32-thermal: add binding documentation thermal: rcar_thermal: add R8A77970 support dt-bindings: thermal: rcar-thermal: document R8A77970 bindings thermal: rcar_thermal: fix duplicate IRQ request dt-bindings: thermal: rcar: Add device tree support for r8a7744 thermal/drivers/hisi: Add the dual clusters sensors for hi3660 thermal/drivers/hisi: Add more sensors channel thermal/drivers/hisi: Remove pointless irq field thermal/drivers/hisi: Use platform_get_irq_byname thermal/drivers/hisi: Replace macro name with relevant sensor location thermal/drivers/hisi: Add multiple sensors support thermal/drivers/hisi: Prepare to support multiple sensors thermal/drivers/hisi: Factor out the probe functions thermal/drivers/hisi: Set the thermal zone private data to the sensor pointer ...
2018-10-22thermal: qoriq: add i.mx8mq supportAnson Huang
Add i.mx8mq specific compatible string. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-10-22thermal: Convert to using %pOFn instead of device_node.nameRob Herring
In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Cc: linux-pm@vger.kernel.org Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-08-20thermal: qoriq: Switch to SPDX identifierFabio Estevam
Adopt the SPDX license identifier headers to ease license compliance management. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Acked-by: Philippe Ombredanne <pombredanne@nexb.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-08-20thermal: qoriq: Simplify the 'site' variable assignmentFabio Estevam
There is no need to assign zero to the variable 'site' and then perform a compound bitwise OR operation afterwards. Make it simpler by assigning the final 'site' value directly. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-08-20thermal: qoriq: Use devm_thermal_zone_of_sensor_register()Fabio Estevam
By using the managed devm_thermal_zone_of_sensor_register() we can drop the explicit call to thermal_zone_of_sensor_unregister() in the qoriq_tmu_remove() function, which simplifies the code a bit. So switch to devm_thermal_zone_of_sensor_register(). Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-08-11thermal: qoriq: constify thermal_zone_of_device_ops structuresJulia Lawall
The thermal_zone_of_device_ops structure is only passed as the fourth argument to thermal_zone_of_sensor_register, which is declared as const. Thus the thermal_zone_of_device_ops structure itself can be const. Done with the help of Coccinelle. Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2017-05-23thermal: qoriq: remove useless call for of_thermal_get_trip_points()Masahiro Yamada
Building this driver with W=1 reports: warning: variable 'trip' set but not used [-Wunused-but-set-variable] The call for of_thermal_get_trip_points() is useless. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2016-09-27thermal: qoriq: Add thermal management supportJia Hongtao
This driver add thermal management support by enabling TMU (Thermal Monitoring Unit) on QorIQ platform. It's based on thermal of framework: - Trip points defined in device tree. - Cpufreq as cooling device registered in qoriq cpufreq driver. Signed-off-by: Jia Hongtao <hongtao.jia@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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