#
4a62d588 |
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22-Feb-2024 |
Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
thermal: core: Eliminate writable trip points masks All of the thermal_zone_device_register_with_trips() callers pass zero writable trip points masks to it, so drop the mask argument from that function and update all of its callers accordingly. This also removes the artificial trip points per zone limit of 32, related to using writable trip points masks. No intentional functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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#
68e9c603 |
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12-Feb-2024 |
Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
thermal: imx: Set THERMAL_TRIP_FLAG_RW_TEMP directly It is now possible to flag trip points with THERMAL_TRIP_FLAG_RW_TEMP to allow their temperature to be set from user space via sysfs instead of using a nonzero writable trips mask during thermal zone registration, so make the imx thermal code do that. No intentional functional impact. Note that this change is requisite for dropping the mask argument from thermal_zone_device_register_with_trips() going forward. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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#
9b0a6275 |
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22-Feb-2024 |
Rafael J. Wysocki <rafael.j.wysocki@intel.com> |
thermal: core: Store zone trips table in struct thermal_zone_device The current code expects thermal zone creators to pass a pointer to a writable trips table to thermal_zone_device_register_with_trips() and that trips table is then used by the thermal core going forward. Consequently, the callers of thermal_zone_device_register_with_trips() are required to hold on to the trips table passed to it until the given thermal zone is unregistered, at which point the trips table can be freed, but at the same time they are not expected to access that table directly. This is both error prone and confusing. To address it, turn the trips table pointer in struct thermal_zone_device into a flex array (counted by its num_trips field), allocate it during thermal zone device allocation and copy the contents of the trips table supplied by the zone creator (which can be const now) into it, which will allow the callers of thermal_zone_device_register_with_trips() to drop their trip tables right after the zone registration. This requires the imx thermal driver to be adjusted to store the new temperature in its internal trips table in imx_set_trip_temp(), because it will be separate from the core's trips table now and it has to be explicitly kept in sync with the latter. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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#
02e7baaf |
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27-Sep-2023 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
thermal: imx: Convert to platform remove callback returning void The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new(), which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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#
f6a756e8 |
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14-Jul-2023 |
Rob Herring <robh@kernel.org> |
thermal: Explicitly include correct DT includes The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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#
ed4b51b8 |
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09-Mar-2023 |
Daniel Lezcano <daniel.lezcano@linaro.org> |
thermal/drivers/imx: Use the thermal framework for the trip point The thermal framework provides an API to get the trip related to a trip point id. We want to consolidate the generic trip points code, thus preventing the different drivers to deal with the trip points after they registered them. The set_trip_temp ops will be changed regarding the above changes but first we need to rework a bit the different implementation in the drivers. The goal is to prevent using the trip id but use a trip point passed as parameter which will contain all the needed information. As we don't have the trip point passed as parameter yet, we get the trip point using the generic trip thermal framewrok APIs and use it to take exactly the same decisions. The difference with this change and the previous code is from where we get the thermal trip point (which is the same). No functional change intended. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20230309092821.1590586-2-daniel.lezcano@linaro.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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#
53c9ce49 |
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09-Mar-2023 |
Daniel Lezcano <daniel.lezcano@linaro.org> |
thermal/drivers/imx: Remove get_trip_temp ops The i.MX thermal sensor uses the generic trip points. The thermal framework can return the critical temperature directly. Remove the pointless get_trip_temp ops. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Fabio Estevam <festevam@gmail.com> Link: https://lore.kernel.org/r/20230309092821.1590586-1-daniel.lezcano@linaro.org Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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#
86df7d19 |
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10-Mar-2023 |
Rob Herring <robh@kernel.org> |
thermal: Use of_property_present() for testing DT property presence It is preferred to use typed property access functions (i.e. of_property_read_<type> functions) rather than low-level of_get_property/of_find_property functions for reading properties. As part of this, convert of_get_property/of_find_property calls to the recently added of_property_present() helper when we just want to test for presence of a property and nothing more. Signed-off-by: Rob Herring <robh@kernel.org> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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#
dec07d39 |
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01-Mar-2023 |
Daniel Lezcano <daniel.lezcano@linaro.org> |
thermal: Don't use 'device' internal thermal zone structure field Some drivers are directly using the thermal zone's 'device' structure field. Use the driver device pointer instead of the thermal zone device when it is available. Remove the traces when they are duplicate with the traces in the core code. Cc: Jean Delvare <jdelvare@suse.com> Cc: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Balsam CHIHI <bchihi@baylibre.com> #Mediatek LVTS Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> #MediaTek LVTS Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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#
abda7383 |
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01-Mar-2023 |
Daniel Lezcano <daniel.lezcano@linaro.org> |
thermal: Remove debug or error messages in get_temp() ops Some get_temp() ops implementation are showing an error or a debug message if the reading of the sensor fails. The debug message is already displayed from the call site of this ops. So we can remove it. On the other side, the error should not be displayed because in production that can raise tons of messages. Finally, some drivers are showing a debug message with the temperature, this is also accessible through the trace from the core code in the temperature_update() function. Another benefit is the dev_* messages are accessing the thermal zone device field from the structure, so we encapsulate even more the code by preventing these accesses. Remove those messages. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> #Armada Acked-by: Florian Fainelli <f.fainelli@gmail.com> #brcmstb_thermal.c Acked-by: Heiko Stuebner <heiko@sntech.de> #rockchip Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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#
5f68d078 |
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01-Mar-2023 |
Daniel Lezcano <daniel.lezcano@linaro.org> |
thermal/core: Use the thermal zone 'devdata' accessor in thermal located drivers The thermal zone device structure is exposed to the different drivers and obviously they access the internals while that should be restricted to the core thermal code. In order to self-encapsulate the thermal core code, we need to prevent the drivers accessing directly the thermal zone structure and provide accessor functions to deal with. Use the devdata accessor introduced in the previous patch. No functional changes intended. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> #R-Car Acked-by: Mark Brown <broonie@kernel.org> Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> #MediaTek auxadc and lvts Reviewed-by: Balsam CHIHI <bchihi@baylibre.com> #Mediatek lvts Reviewed-by: Adam Ward <DLG-Adam.Ward.opensource@dm.renesas.com> #da9062 Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com> #spread Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com> #sun8i_thermal Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Florian Fainelli <f.fainelli@gmail.com> #Broadcom Reviewed-by: Dhruva Gole <d-gole@ti.com> # K3 bandgap Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Heiko Stuebner <heiko@sntech.de> #rockchip Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> #uniphier Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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#
30233a22 |
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03-Oct-2022 |
Daniel Lezcano <daniel.lezcano@linaro.org> |
thermal/drivers/imx: Use generic thermal_zone_get_trip() function The thermal framework gives the possibility to register the trip points with the thermal zone. When that is done, no get_trip_* ops are needed and they can be removed. Convert ops content logic into generic trip points and register them with the thermal zone. Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20221003092602.1323944-22-daniel.lezcano@linaro.org
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#
4cf2ddf1 |
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17-Nov-2021 |
Oleksij Rempel <linux@rempel-privat.de> |
thermal/drivers/imx: Implement runtime PM support Starting with commit d92ed2c9d3ff ("thermal: imx: Use driver's local data to decide whether to run a measurement") this driver stared using irq_enabled flag to make decision to power on/off the thermal core. This triggered a regression, where after reaching critical temperature, alarm IRQ handler set irq_enabled to false, disabled thermal core and was not able read temperature and disable cooling sequence. In case the cooling device is "CPU/GPU freq", the system will run with reduce performance until next reboot. To solve this issue, we need to move all parts implementing hand made runtime power management and let it handle actual runtime PM framework. Fixes: d92ed2c9d3ff ("thermal: imx: Use driver's local data to decide whether to run a measurement") Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Tested-by: Petr Beneš <petr.benes@ysoft.com> Link: https://lore.kernel.org/r/20211117103426.81813-1-o.rempel@pengutronix.de Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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#
5f3c0200 |
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11-Aug-2020 |
Anson Huang <Anson.Huang@nxp.com> |
thermal: imx: Use dev_err_probe() to simplify error handling dev_err_probe() can reduce code size, uniform error handling and record the defer probe reason etc., use it to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1597129185-8460-1-git-send-email-Anson.Huang@nxp.com
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#
d92ed2c9 |
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02-Jul-2020 |
Andrzej Pietrasiewicz <andrzej.p@collabora.com> |
thermal: imx: Use driver's local data to decide whether to run a measurement Use driver's local data to evaluate the need to run or not to run a measurement. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200703104354.19657-3-andrzej.p@collabora.com
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#
f5e50bf4 |
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29-Jun-2020 |
Andrzej Pietrasiewicz <andrzej.p@collabora.com> |
thermal: Rename set_mode() to change_mode() set_mode() is only called when tzd's mode is about to change. Actual setting is performed in thermal_core, in thermal_zone_device_set_mode(). The meaning of set_mode() callback is actually to notify the driver about the mode being changed and giving the driver a chance to oppose such change. To better reflect the purpose of the method rename it to change_mode() Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> [for acerhdf] Acked-by: Peter Kaestle <peter@piie.net> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200629122925.21729-12-andrzej.p@collabora.com
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#
5d7bd8aa |
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29-Jun-2020 |
Andrzej Pietrasiewicz <andrzej.p@collabora.com> |
thermal: Simplify or eliminate unnecessary set_mode() methods Setting polling_delay is now done at thermal_core level (by not polling DISABLED devices), so no need to repeat this code. int340x: Checking for an impossible enum value is unnecessary. acpi/thermal: It only prints debug messages. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> [for acerhdf] Acked-by: Peter Kaestle <peter@piie.net> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200629122925.21729-11-andrzej.p@collabora.com
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#
7f4957be |
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29-Jun-2020 |
Andrzej Pietrasiewicz <andrzej.p@collabora.com> |
thermal: Use mode helpers in drivers Use thermal_zone_device_{en|dis}able() and thermal_zone_device_is_enabled(). Consequently, all set_mode() implementations in drivers: - can stop modifying tzd's "mode" member, - shall stop taking tzd's lock, as it is taken in the helpers - shall stop calling thermal_zone_device_update() as it is called in the helpers - can assume they are called when the mode truly changes, so checks to verify that can be dropped Not providing set_mode() by a driver no longer prevents the core from being able to set tzd's mode, so the relevant check in mode_store() is removed. Other comments: - acpi/thermal.c: tz->thermal_zone->mode will be updated only after we return from set_mode(), so use function parameter in thermal_set_mode() instead, no need to call acpi_thermal_check() in set_mode() - thermal/imx_thermal.c: regmap writes and mode assignment are done in thermal_zone_device_{en|dis}able() and set_mode() callback - thermal/intel/intel_quark_dts_thermal.c: soc_dts_{en|dis}able() are a part of set_mode() callback, so they don't need to modify tzd->mode, and don't need to fall back to the opposite mode if unsuccessful, as the return value will be propagated to thermal_zone_device_{en|dis}able() and ultimately tzd's member will not be changed in thermal_zone_device_set_mode(). - thermal/of-thermal.c: no need to set zone->mode to DISABLED in of_parse_thermal_zones() as a tzd is kzalloc'ed so mode is DISABLED anyway Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> [for acerhdf] Acked-by: Peter Kaestle <peter@piie.net> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200629122925.21729-8-andrzej.p@collabora.com
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#
1ee14820 |
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29-Jun-2020 |
Andrzej Pietrasiewicz <andrzej.p@collabora.com> |
thermal: remove get_mode() operation of drivers get_mode() is now redundant, as the state is stored in struct thermal_zone_device. Consequently the "mode" attribute in sysfs can always be visible, because it is always possible to get the mode from struct tzd. Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> [for acerhdf] Acked-by: Peter Kaestle <peter@piie.net> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200629122925.21729-6-andrzej.p@collabora.com
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#
5a350665 |
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29-Jun-2020 |
Andrzej Pietrasiewicz <andrzej.p@collabora.com> |
thermal: Store device mode in struct thermal_zone_device Prepare for eliminating get_mode(). Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@collabora.com> [for acerhdf] Acked-by: Peter Kaestle <peter@piie.net> Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200629122925.21729-5-andrzej.p@collabora.com
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#
b45fd13b |
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26-Mar-2020 |
Anson Huang <Anson.Huang@nxp.com> |
thermal/drivers: imx: Fix missing of_node_put() at probe time After finishing using cpu node got from of_get_cpu_node(), of_node_put() needs to be called. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1585232945-23368-1-git-send-email-Anson.Huang@nxp.com
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#
9db11010 |
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13-Mar-2020 |
Anson Huang <Anson.Huang@nxp.com> |
thermal: imx: Calling imx_thermal_unregister_legacy_cooling() in .remove imx_thermal_unregister_legacy_cooling() should be used for handling legacy cpufreq cooling cleanups in .remove callback instead of calling cpufreq_cooling_unregister() and cpufreq_cpu_put() directly, especially for !CONFIG_CPU_FREQ scenario, no operation needed for handling legacy cpufreq cooling cleanups at all. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1584088094-24857-1-git-send-email-Anson.Huang@nxp.com
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#
a9d8e61b |
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09-Mar-2020 |
Anson Huang <Anson.Huang@nxp.com> |
thermal: imx: Remove unused includes Remove unused includes to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1583762668-12099-1-git-send-email-Anson.Huang@nxp.com
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#
b009514f |
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02-Mar-2020 |
Anson Huang <Anson.Huang@nxp.com> |
thermal: imx_thermal: Use __maybe_unused instead of CONFIG_PM_SLEEP Use __maybe_unused for power management related functions instead of #if CONFIG_PM_SLEEP to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1583139266-23615-1-git-send-email-Anson.Huang@nxp.com
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#
925b3836 |
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20-Nov-2018 |
Anson Huang <anson.huang@nxp.com> |
thermal: imx: save one condition block for normal case of nvmem initialization Put return value checks of calling imx_init_from_nvmem_cells() into one block to save one condition block for normal case. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
c589c566 |
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20-Nov-2018 |
Anson Huang <anson.huang@nxp.com> |
thermal: imx: fix for dependency on cpu-freq The thermal driver is a standalone driver for monitoring SoC temperature by enabling thermal sensor, so it can be enabled even when CONFIG_CPU_FREQ is NOT set. So remove the dependency with CPU_THERMAL. Introduce dummy function of legacy cooling register/unregister to make thermal driver probe successfully when CONFIG_CPU_FREQ is NOT set. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
b6ad3981 |
|
13-Sep-2018 |
Anson Huang <Anson.Huang@nxp.com> |
thermal: imx: handle error path in one place to save duplicated code During probe phase, the error path can be handled in one place and use goto method to save many duplicated code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
337a4aec |
|
13-Sep-2018 |
Anson Huang <Anson.Huang@nxp.com> |
thermal: imx: improve error message Remove the duplicated "from" to improve the error message. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
be926cee |
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30-Jun-2018 |
Jean-Christophe Dubois <jcd@tribudubois.net> |
thermal: i.MX: Allow thermal probe to fail gracefully in case of bad calibration. Without this fix, the thermal probe on i.MX6 might trigger a division by zero exception later in the probe if the calibration does fail. Note: This linux behavior (Division by zero in kernel) has been triggered on a Qemu i.MX6 emulation where parameters in nvmem were not set. With this fix the division by zero is not triggeed anymore as the thermal probe does fail early. Signed-off-by: Jean-Christophe Dubois <jcd@tribudubois.net> Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
a1d00154 |
|
08-Jun-2018 |
Bastian Stender <bst@pengutronix.de> |
cpufreq: imx6q/thermal: imx: register cooling device depending on OF The cooling device should be part of the i.MX cpufreq driver, but it cannot be removed for the sake of DT stability. So turn the cooling device registration into a separate function and perform the registration only if the CPU OF node does not have the #cooling-cells property. Use of_cpufreq_power_cooling_register in imx_thermal code to link the cooling device to the device tree node provided. This makes it possible to bind the cpufreq cooling device to a custom thermal zone via a cooling-maps entry like: cooling-maps { map0 { trip = <&board_alert>; cooling-device = <&cpu0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>; }; }; Assuming a cpu node exists with label "cpu0" and #cooling-cells property. Signed-off-by: Bastian Stender <bst@pengutronix.de> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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#
45f8b0dd |
|
23-May-2018 |
Fabio Estevam <fabio.estevam@nxp.com> |
thermal: imx: Switch to SPDX identifier Adopt the SPDX license identifier headers to ease license compliance management. Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
f085f672 |
|
01-Mar-2018 |
Anson Huang <Anson.Huang@nxp.com> |
thermal: imx: add i.MX7 thermal sensor support This patch adds i.MX7 thermal sensor support, most of the i.MX7 thermal sensor functions are same with i.MX6 except the registers offset/layout, so we move those registers offset/layout definitions to soc data structure. i.MX7 uses single calibration data @25C, the calibration data is located at OCOTP offset 0x4F0, bit[17:9], the formula is as below: Tmeas = (Nmeas - n1) + 25; n1 is the fuse value for 25C. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Bai Ping <ping.bai@nxp.com> Acked-by: Dong Aisheng <aisheng.dong@nxp.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
cf1ba1d7 |
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02-Feb-2018 |
Mikhail Lappo <mikhail.lappo@esrlabs.com> |
thermal: imx: Fix race condition in imx_thermal_probe() When device boots with T > T_trip_1 and requests interrupt, the race condition takes place. The interrupt comes before THERMAL_DEVICE_ENABLED is set. This leads to an attempt to reading sensor value from irq and disabling the sensor, based on the data->mode field, which expected to be THERMAL_DEVICE_ENABLED, but still stays as THERMAL_DEVICE_DISABLED. Afher this issue sensor is never re-enabled, as the driver state is wrong. Fix this problem by setting the 'data' members prior to requesting the interrupts. Fixes: 37713a1e8e4c ("thermal: imx: implement thermal alarm interrupt handling") Cc: <stable@vger.kernel.org> Signed-off-by: Mikhail Lappo <mikhail.lappo@esrlabs.com> Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com> Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Dong Aisheng <aisheng.dong@nxp.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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#
4e5f61ca |
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30-Nov-2017 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
thermal: imx: update to new formula according to NXP AN5215 According to an application note from 03/2017 there is an updated formula to calculate the temperature that better matches reality. This is implemented here. While updating move the magic constants from cpp defines which are far above the explaining formula to constants in the code just under the explaining comment. Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
339d7492 |
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30-Nov-2017 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
thermal: imx: use consistent style to write temperatures The previous commit already took care to use the right notation for temperatures. Add correct units to all values representing temperatures in the right notation for the rest of the file. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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c5bbdb4b |
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30-Nov-2017 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
thermal: imx: improve comments describing algorithm for temp calculation The description of the implemented algorithm is hardly understandable without having the right application note side-by-side to the code. Fix this by using shorter and more intuitive variable names, describe their meaning and transform a single formula instead of first talking about slope and then about "milli_Tmeas". There are no code changes. Reviewed-by: Leonard Crestez <leonard.crestez@nxp.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
e4bb2240 |
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30-Nov-2017 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
thermal: imx: Use better parameter names than "val" The values passed to imx_init_calib() and imx_init_temp_grade() are read from specific OCOTP values. Use their names (in lower case) as parameter name instead of "val" to make the code easier to understand. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
ae621557 |
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14-Jul-2017 |
Leonard Crestez <leonard.crestez@nxp.com> |
thermal: imx: Add support for reading OCOTP through nvmem On newer imx SOCs accessing OCOTP directly is wrong because the ocotp clock needs to be enabled first. Add support for reading those same values through the nvmem API instead. The older path is preserved for compatibility with older dts and because it works correctly on imx6qdl chips. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Acked-by: Shawn Guo <shawnguo@kernel.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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#
e3bdc8d7 |
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06-Jun-2017 |
Arvind Yadav <arvind.yadav.cs@gmail.com> |
thermal: imx: Handle return value of clk_prepare_enable clk_prepare_enable() can fail here and we must check its return value. Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
4d753aa7 |
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25-Apr-2017 |
Viresh Kumar <viresh.kumar@linaro.org> |
thermal: cpu_cooling: use cpufreq_policy to register cooling device The CPU cooling driver uses the cpufreq policy, to get clip_cpus, the frequency table, etc. Most of the callers of CPU cooling driver's registration routines have the cpufreq policy with them, but they only pass the policy->related_cpus cpumask. The __cpufreq_cooling_register() routine then gets the policy by itself and uses it. It would be much better if the callers can pass the policy instead directly. This also fixes a basic design flaw, where the policy can be freed while the CPU cooling driver is still active. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Tested-by: Lukasz Luba <lukasz.luba@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
8b051ec3 |
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29-Jan-2017 |
Shailendra Verma <shailendra.v@samsung.com> |
thermal: imx: Fix possible NULL dereference. of_device_get_match_data could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma <shailendra.v@samsung.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
0e70f466 |
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26-Aug-2016 |
Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> |
thermal: Enhance thermal_zone_device_update for events Added one additional parameter to thermal_zone_device_update() to provide caller with an optional capability to specify reason. Currently this event is used by user space governor to trigger different processing based on event code. Also it saves an additional call to read temperature when the event is received. The following events are cuurently defined: - Unspecified event - New temperature sample - Trip point violated - Trip point changed - thermal device up and down - thermal device power capability changed Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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#
829bc78a |
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16-Aug-2016 |
Corentin LABBE <clabbe.montjoie@gmail.com> |
thermal: imx: fix a possible NULL dereference of_match_device could return NULL, and so cause a NULL pointer dereference later at line 472: data->socdata = of_id->data; For fixing this problem, we use of_device_get_match_data(), this will simplify the code a little by using a standard function for getting the match data. Reported-by: coverity (CID 1324128) Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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#
a2291bad |
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19-Nov-2015 |
Tim Harvey <tharvey@gateworks.com> |
imx: thermal: use CPU temperature grade info for thresholds The IMX6Q/IMX6DL SoC's have a 2-bit temperature grade stored in OTP which is valid for all IMX6 SoC's (despite the fact that the IMXSDLRM and IMXSXRM do not document this - this has been proven via tests as well as verified by Freescale FAE). Instead of assuming a fixed 85C for passive cooling threshold and 105C for critical use the thermal grade for these configurations. We will set the critical to maxT - 5C and passive to maxT - 10C. Cc: Anson Huang <b20788@freescale.com> Cc: Fabio Estevam <fabio.estevam@freescale.com> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Jon Nettleton <jon@solid-run.com> Signed-off-by: Tim Harvey <tharvey@gateworks.com> ---- v3: - rebase against linux-soc-thermal.git - added ack's from Shawn and Jon v2: - remove check for IMX6Q and update comments: The OTP values have been tested on IMX6SOLO, IMX6DUALLITE, and IMX6SX and Freescale FAE has shared data with me that the OTP settings are the same and that the reference manuals will reflect this in their next updates. - set critical to max - 5C - set passive to max - 10C - display max temp in info - do not allow passive to be set above critical Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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8fb2b9ac |
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21-Aug-2015 |
Dan Carpenter <dan.carpenter@oracle.com> |
thermal: underflow bug in imx_set_trip_temp() We recently changed this from unsigned long to int so it introduced an underflow bug. Fixes: 17e8351a7739 ('thermal: consistently use int for temperatures') Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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84866ee5 |
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14-Sep-2015 |
Bai Ping <b51503@freescale.com> |
thermal: imx: register irq handler later in probe The irq handler should be registered after the tempmon module has been initialized in a known state and the thermal_zone and cpu_cooling device have been registered successfully. Otherwise, if the irq is triggled earlier before thermal probe has been finished, it may lead to 'NULL' pointer kernel panic. Signed-off-by: Bai Ping <b51503@freescale.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
17e8351a |
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24-Jul-2015 |
Sascha Hauer <s.hauer@pengutronix.de> |
thermal: consistently use int for temperatures The thermal code uses int, long and unsigned long for temperatures in different places. Using an unsigned type limits the thermal framework to positive temperatures without need. Also several drivers currently will report temperatures near UINT_MAX for temperatures below 0°C. This will probably immediately shut the machine down due to overtemperature if started below 0°C. 'long' is 64bit on several architectures. This is not needed since INT_MAX °mC is above the melting point of all known materials. Consistently use a plain 'int' for temperatures throughout the thermal code and the drivers. This only changes the places in the drivers where the temperature is passed around as pointer, when drivers internally use another type this is not changed. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Jean Delvare <jdelvare@suse.de> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com> Reviewed-by: Darren Hart <dvhart@linux.intel.com> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Peter Feuerer <peter@piie.net> Cc: Punit Agrawal <punit.agrawal@arm.com> Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Jean Delvare <jdelvare@suse.de> Cc: Peter Feuerer <peter@piie.net> Cc: Heiko Stuebner <heiko@sntech.de> Cc: Lukasz Majewski <l.majewski@samsung.com> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: linux-acpi@vger.kernel.org Cc: platform-driver-x86@vger.kernel.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-omap@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Cc: Guenter Roeck <linux@roeck-us.net> Cc: Rafael J. Wysocki <rjw@rjwysocki.net> Cc: Maxime Ripard <maxime.ripard@free-electrons.com> Cc: Darren Hart <dvhart@infradead.org> Cc: lm-sensors@lm-sensors.org Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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#
6cd9e9f6 |
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18-Feb-2015 |
Kapileshwar Singh <kapileshwar.singh@arm.com> |
thermal: of: fix cooling device weights in device tree Currently you can specify the weight of the cooling device in the device tree but that information is not populated to the thermal_bind_params where the fair share governor expects it to be. The of thermal zone device doesn't have a thermal_bind_params structure and arguably it's better to pass the weight inside the thermal_instance as it is specific to the bind of a cooling device to a thermal zone parameter. Core thermal code is fixed to populate the weight in the instance from the thermal_bind_params, so platform code that was passing the weight inside the thermal_bind_params continue to work seamlessly. While we are at it, create a default value for the weight parameter for those thermal zones that currently don't define it and remove the hardcoded default in of-thermal. Cc: Zhang Rui <rui.zhang@intel.com> Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net> Cc: Len Brown <lenb@kernel.org> Cc: Peter Feuerer <peter@piie.net> Cc: Darren Hart <dvhart@infradead.org> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: Kukjin Kim <kgene@kernel.org> Cc: Durgadoss R <durgadoss.r@intel.com> Signed-off-by: Kapileshwar Singh <kapileshwar.singh@arm.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
d26eef8b |
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06-Jan-2015 |
Anson Huang <b20788@freescale.com> |
Thermal: imx: add clk disable/enable for suspend/resume Thermal sensor's clk is from pll3_usb_otg, per hardware design requirement, need to make sure pll3_usb_otg is disabled before STOP mode is entered, otherwise, all PFDs under it may enter incorrect state, this patch disables pll3_usb_otg before suspend and enables it after resume. Signed-off-by: Anson Huang <b20788@freescale.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
412aff94 |
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11-Dec-2014 |
Fabio Estevam <fabio.estevam@freescale.com> |
thermal: imx: Do not print error message in the EPROBE_DEFER case During imx_thermal probe we have the following log: [ 1.514819] imx_thermal 2000000.aips-bus:tempmon: failed to register cpufreq cooling device: -517 [ 1.515064] platform 2000000.aips-bus:tempmon: Driver imx_thermal requests probe deferral Avoid printing the error message in the EPROBE_DEFER case. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
bec85d2e |
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03-Dec-2014 |
Viresh Kumar <viresh.kumar@linaro.org> |
thermal: imx: pass cpu_present_mask to cpufreq_cooling_register() cpufreq_cooling_register() expects mask of all the CPUs where frequency constraint is applicable. This platform has more than one CPU to which these constraints will apply and so passing mask of only CPU0 wouldn't be sufficient. Also, this platform has a single cluster of CPUs and the constraint applies to all CPUs. If CPU0 is hoplugged out then we may face strange BUGs as cpu_cooling framework isn't aware of any siblings sharing clock line. Fix it by passing cpu_present_mask to cpufreq_cooling_register(). Cc: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
0f1be51c |
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03-Dec-2014 |
Eduardo Valentin <edubezval@gmail.com> |
thermal: cpu_cooling: check for the readiness of cpufreq layer In this patch, the cpu_cooling code checks for the usability of cpufreq layer before proceeding with the CPU cooling device registration. The main reason is: CPU cooling device is not usable if cpufreq cannot switch frequencies. Similar checks are spread in thermal drivers. Thus, the advantage now is to have the check in a single place: cpu cooling device registration. For this reason, this patch also updates the existing drivers that depend on CPU cooling to simply propagate the error code of the cpu cooling registration call. Therefore, in case cpufreq is not ready, the thermal drivers will still return -EPROBE_DEFER, in an attempt to try again when cpufreq layer gets ready. Cc: devicetree@vger.kernel.org Cc: Grant Likely <grant.likely@linaro.org> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org Cc: linux-pm@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org Cc: Naveen Krishna Chatradhi <ch.naveen@samsung.com> Cc: Rob Herring <robh+dt@kernel.org> Cc: Zhang Rui <rui.zhang@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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#
90a21ff5 |
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08-Nov-2014 |
Heiner Kallweit <heiner.kallweit@web.de> |
imx: thermal: imx_get_temp might be called before sensor clock is prepared 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>
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#
491b079d |
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13-Oct-2014 |
Bai Ping <b51503@freescale.com> |
thermal: imx: correct driver load sequence for cpu cooling 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>
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#
bbc37983 |
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20-Oct-2014 |
Wolfram Sang <wsa@kernel.org> |
thermal: drop owner assignment from platform_drivers A platform_driver does not need to set an owner, it will be populated by the driver core. Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
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#
3c94f17e |
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06-Aug-2014 |
Anson Huang <b20788@freescale.com> |
Thermal: imx: add i.mx6sx thermal support 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>
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#
d0f9d64a |
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20-Jun-2014 |
Anson Huang <b20788@freescale.com> |
Thermal: imx: correct critical trip temperature setting 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>
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#
749e8be7 |
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12-Feb-2014 |
Anson Huang <b20788@freescale.com> |
thermal: imx: update formula for thermal sensor Thermal sensor used to need two calibration points which are in fuse map to get a slope for converting thermal sensor's raw data to real temperature in degree C. Due to the chip calibration limitation, hardware team provides an universal formula to get real temperature from internal thermal sensor raw data: Slope = 0.4297157 - (0.0015976 * 25C fuse); Update the formula, as there will be no hot point calibration data in fuse map from now on. 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>
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#
cbb07bb3 |
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06-Jan-2014 |
Eduardo Valentin <eduardo.valentin@ti.com> |
thermal: remove const flag from .ops of imx thermal As per previous changes on thermal framework API, registering a new thermal zone does not require a const thermal zone ops. Thus, this patch removes the flag from imx thermal zone ops. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Grant Likely <grant.likely@linaro.org> Cc: Rob Herring <rob.herring@calxeda.com> Cc: linux-pm@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: devicetree@vger.kernel.org Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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#
329fe7b1 |
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23-Dec-2013 |
Anson Huang <b20788@freescale.com> |
thermal: imx: add necessary clk operation Thermal sensor needs pll3_usb_otg when measuring temperature, otherwise the temperature read will be incorrect, so need to enable this clk before sensor working, for alarm function, as hardware will take measurement periodically, so we should keep this clk always on once alarm function is enabled. 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>
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#
dd268632 |
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16-Dec-2013 |
Russell King <rmk+kernel@arm.linux.org.uk> |
thermal: imx_thermal: add module device table Add the module device table declaration so the module can be loaded automatically at boot time. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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b46cce59 |
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24-Dec-2013 |
Anson Huang <b20788@freescale.com> |
thermal: imx: correct suspend/resume flow Fixes regression introduced by: commit 37713a1e8e4c1a1067ad4c99296f78d3c82ed9c4 Author: Philipp Zabel <p.zabel@pengutronix.de> Date: Thu Aug 1 18:33:12 2013 +0200 thermal: imx: implement thermal alarm interrupt handling The commit 37713a1e8e4 makes imx thermal sensor always powered up as alarm function is enabled, but the suspend callback of imx thermal returns success only if thermal sensor is powered down, so it will always returns fail hence break system's suspend, this patch disables imx thermal sensor before suspend and re-enable it after resume. 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>
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#
37713a1e |
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01-Aug-2013 |
Philipp Zabel <p.zabel@pengutronix.de> |
thermal: imx: implement thermal alarm interrupt handling Enable automatic measurements at 10 Hz and use the alarm interrupt to react more quickly to sudden temperature changes above the passive or critical temperature trip points. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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#
017e5142 |
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01-Aug-2013 |
Philipp Zabel <p.zabel@pengutronix.de> |
thermal: imx: dynamic passive and SoC specific critical trip points Set passive and critical trip point values depending on the maximum die temperature stored in the OCOTP fuses. This allows higher trip points for industrial and automotive rated i.MX6 SoCs. Also allow to configure the passive trip point from userspace. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Acked-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
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#
ca3de46b |
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24-Jun-2013 |
Shawn Guo <shawn.guo@linaro.org> |
thermal: add imx thermal driver support This is based on the initial imx thermal work done by Rob Lee <rob.lee@linaro.org> (Not sure if the email address is still valid). Since he is no longer interested in the work and I have rewritten a significant amount of the code, I just took the authorship over from him. It adds the imx thermal support using Temperature Monitor (TEMPMON) block found on some Freescale i.MX SoCs. The driver uses syscon regmap interface to access TEMPMON control registers and calibration data, and supports cpufreq as the cooling device. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com>
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