Commit Graph

1524 Commits

Author SHA1 Message Date
Daniel Lezcano 72554a7509 thermal/drivers/cpu_cooling: Remove pointless field
The structure cpufreq_cooling_device provides a backpointer to the thermal
device but this one is used for a trace and to unregister. For the trace,
we don't really need this field and the unregister function as the same
pointer passed as parameter. Remove it.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:35 -07:00
Daniel Lezcano 0fac9e2f14 thermal/drivers/cpu_cooling: Add Software Package Data Exchange (SPDX)
For license auditing purpose, let's add the SPDX tag.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Philippe Ombredanne <pombredanne@nexb.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:35 -07:00
Daniel Lezcano 42cd9b0498 thermal/drivers/cpu_cooling: Fixup the header and copyright
The copyright format does not conform to the format requested by
Linaro: https://wiki.linaro.org/Copyright

Fix it.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:34 -07:00
Daniel Lezcano 3c74cbb8d0 thermal/drivers/cpu_cooling: Remove pointless test in power2state()
When the static power computation was removed, the test with the power
being negative was not removed. However, the substraction which was
responsible of the negative value was removed and the variable is now
an u32. A double reason to remove the test which does not make sense.

Fixes: 84fe2cab48 ("cpu_cooling: Drop static-power related stuff")
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:33 -07:00
Jiada Wang 63f55fcea5 thermal: rcar_gen3_thermal: disable interrupt in .remove
Currently IRQ remains enabled after .remove, later if device is probed,
IRQ is requested before .thermal_init, this may cause IRQ function be
called before device is initialized.

this patch disables interrupt in .remove, to ensure irq function
only be called after device is fully initialized.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:32 -07:00
Jiada Wang 2c0928c9e0 thermal: rcar_gen3_thermal: fix interrupt type
Currently IRQF_SHARED type interrupt line is allocated, but it
is not appropriate, as the interrupt line isn't shared between
different devices, instead IRQF_ONESHOT is the proper type.

By changing interrupt type to IRQF_ONESHOT, now irq handler is
no longer needed, as clear of interrupt status can be done in
threaded interrupt context.

Because IRQF_ONESHOT type interrupt line is kept disabled until
the threaded handler has been run, so there is no need to protect
read/write of REG_GEN3_IRQSTR with lock.

Fixes: 7d4b269776 ("enable hardware interrupts for trip points")
Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:31 -07:00
Guenter Roeck b4ab114cc6 thermal: Introduce devm_thermal_of_cooling_device_register
thermal_of_cooling_device_register() and thermal_cooling_device_register()
are typically called from driver probe functions, and
thermal_cooling_device_unregister() is called from remove functions. This
makes both a perfect candidate for device managed functions.

Introduce devm_thermal_of_cooling_device_register(). This function can
also be used to replace thermal_cooling_device_register() by passing a NULL
pointer as device node. The new function requires both struct device *
and struct device_node * as parameters since the struct device_node *
parameter is not always identical to dev->of_node.

Don't introduce a device managed remove function since it is not needed
at this point.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:30 -07:00
Jean-Francois Dagenais d36e2fa025 thermal: generic-adc: make lookup table optional
Certain ADC channels, such as the xilinx-ams temperature channels, give
milliCelcius already when read with iio_read_channel_processed.

Rather than having to provide a 1:1 dummy lookup table, simply allow to
bypass the mechanism.

Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:28 -07:00
Andrey Smirnov f86a7a847c thermal: qoriq: Remove unnecessary DT node is NULL check
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>
2019-05-14 07:00:27 -07:00
Talel Shenhar 71aa369349 thermal: Introduce Amazon's Annapurna Labs Thermal Driver
This is a generic thermal driver for simple MMIO sensors, of which
amazon,al-thermal is one.

This device uses a single MMIO transaction to read the temperature and
report it to the thermal subsystem.

Signed-off-by: Talel Shenhar <talel@amazon.com>
Reviewed-by: David Woodhouse <dwmw@amazon.co.uk>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:26 -07:00
Hoan Nguyen An ed1b1ac142 thermal: rcar_gen3_thermal: Fix init value of IRQCTL register
Fix setting value for IRQCTL register. We are setting the last 6 bits
of (IRQCTL) to be 1 (0x3f), this is only suitable for H3ES1.*, according
to Hardware manual values 1 are "setting prohibited" for Gen3.

Signed-off-by: Hoan Nguyen An <na-hoan@jinso.co.jp>
Acked-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:24 -07:00
Amit Kucheria e52bbd2f10 drivers: thermal: tsens: Move calibration constants to header file
This will allow calibration routines to correctly include the constants
from anywhere and allow more code sharing.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:23 -07:00
Amit Kucheria e8c24c6f5d drivers: thermal: tsens: Add generic support for TSENS v1 IP
qcs404 has a single TSENS IP block with 10 sensors. It uses version 1.4
of the TSENS IP, functionality for which is encapsulated inside the
qcom,tsens-v1 compatible.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:21 -07:00
Amit Kucheria 14bbe98811 drivers: thermal: tsens: Common get_temp() learns to do ADC conversion
get_temp() learns to return temperature regardless of whether it is
returned as ADC code or direct temperature.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:22 -07:00
Amit Kucheria c8b6169093 drivers: thermal: tsens: Move get_temp_tsens_v2 to allow sharing
Just rename the function and move it to allow code sharing with future
versions of TSENS IP

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:21 -07:00
Amit Kucheria dbdaa582e4 drivers: thermal: tsens: simplify get_temp_tsens_v2 routine
The current implementation is based on an algorithm published in the
docs. Instead of reading the temperature thrice w/o any explanation,
improve the algorithm.

This will become the basis for a common get_temp routine in the future.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:20 -07:00
Amit Kucheria 1b6e3e517f drivers: thermal: tsens: Introduce IP-specific max_sensor count
The IP can support 'm' sensors while the platform can enable 'n' sensors
of the 'm' where n <= m.

Track maximum sensors supported by the IP so that we can correctly track
what subset of the sensors are supported on the platform.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:19 -07:00
Amit Kucheria 66ad8a1009 drivers: thermal: tsens: change data type for sensor IDs
The IDs cannot be negative, fix the data type.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:18 -07:00
Amit Kucheria 3e6a8fb330 drivers: thermal: tsens: Add new operation to check if a sensor is enabled
is_sensor_enabled() checks if the sensors are enabled on this platform.
It is possible that the SoC might choose not to enable all the sensors
that the IP block is capable of supporting.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:17 -07:00
Amit Kucheria fc7d18cf6a drivers: thermal: tsens: Don't print error message on -EPROBE_DEFER
We print a calibration failure message on -EPROBE_DEFER from
nvmem/qfprom as follows:
[    3.003090] qcom-tsens 4a9000.thermal-sensor: version: 1.4
[    3.005376] qcom-tsens 4a9000.thermal-sensor: tsens calibration failed
[    3.113248] qcom-tsens 4a9000.thermal-sensor: version: 1.4

This confuses people when, in fact, calibration succeeds later when
nvmem/qfprom device is available. Don't print this message on a
-EPROBE_DEFER.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:16 -07:00
Amit Kucheria 52eafd66ef drivers: thermal: tsens: Save reference to the device pointer and use it
Code cleanup making it easier to read

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:15 -07:00
Amit Kucheria c19970548e drivers: thermal: tsens: Introduce reg_fields to deal with register description
As we add support for newer versions of the TSENS IP, the current
approach isn't scaling because registers and bitfields get moved around,
requiring platform-specific hacks in the code. By moving to regmap, we
can hide the register level differences away from the code.

Define a common set of registers and bit-fields that we care about
across the various tsens IP versions.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 06:59:12 -07:00
Amit Kucheria 582a0c4194 drivers: thermal: tsens: Merge tsens-8974 into tsens-v0_1
8974 and 8916 have the same version of the TSENS IP. Merge the files to
allow for better code reuse.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:37 -07:00
Amit Kucheria 774ccb0819 drivers: thermal: tsens: Rename constants to prepare to merge with tsens-8974
Some #defines in tsens-v_0_1.c clash with those in tsens-8974.c. Prefix
them with 8916 to avoid the clash so we can merge the two files.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:36 -07:00
Amit Kucheria 2be2076303 drivers: thermal: tsens: Rename tsens-8916 to prepare to merge with tsens-8974
8916 and 8974 use v0.1.0 of the TSENS IP. Rename tsens-8916 to prepare
it for merging with tsens-8974 in a later commit.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:36 -07:00
Amit Kucheria 68b3314d7c drivers: thermal: tsens: Function prototypes should have argument names
check_patch complains a lot as follows:

WARNING: function definition argument 'struct tsens_priv *' should also have an identifier name
+       int (*init)(struct tsens_priv *);

Fix it.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:36 -07:00
Amit Kucheria 2cbcd2eab0 drivers: thermal: tsens: Use consistent names for variables
tsens_get_temp() uses the name 'data' for the void pointer, use the same
in tsens_get_trend() for consistency.

Remove a stray space while we're at it.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:36 -07:00
Amit Kucheria 69b628ac71 drivers: thermal: tsens: Rename variable tmdev
tmdev seems to imply that this is a device pointer when in fact it is
just private platform data for each tsens device. Rename it to priv
improve code readability.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:36 -07:00
Amit Kucheria 24ae447291 drivers: thermal: tsens: Rename tsens_device
Rename to tsens_priv to denote that it is private data for each tsens
instance.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:35 -07:00
Amit Kucheria 3c040ce087 drivers: thermal: tsens: Rename tsens_data
Rename to tsens_plat_data to denote that it is platform-data passed in
at compile-time.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:35 -07:00
Amit Kucheria 20a7a2db19 drivers: thermal: tsens: Document the data structures
Describe how the TSENS device and the various sensors connected to it
are described in the driver

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:35 -07:00
Wolfram Sang df535485bb thermal: stm32: simplify getting .driver_data
We should get 'driver_data' from 'struct device' directly. Going via
platform_device is an unneeded step back and forth.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:35 -07:00
Enrico Weigelt, metux IT consult 0f54aa5caf drivers: thermal: Kconfig: pedantic cleanups
Formatting of Kconfig files doesn't look so pretty, so just
take damp cloth and clean it up.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:34 -07:00
Yangtao Li 7ffd87c63d of: thermal: Improve print information
Define pr_fmt macro to add a prefix to the message,
this can make the thermal log better recognized.

Before:

[    0.602672] nfc: nfc_init: NFC Core ver 0.1
[    0.602828] NET: Registered protocol family 39
[    0.603435] clocksource: Switched to clocksource mct-frc
[    0.746216] failed to build thermal zone cpu-thermal: -22
[    0.746451] NET: Registered protocol family 2

After:

[    0.602804] NET: Registered protocol family 39
[    0.603463] clocksource: Switched to clocksource mct-frc
[    0.746309] thermal_sys: failed to build thermal zone cpu-thermal: -22
[    0.746545] NET: Registered protocol family 2

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:34 -07:00
Wei Ni 1dcc242c7c thermal: tegra: enable OC hw throttle
Parse Over Current settings from DT and program them to
generate interrupts. Also enable hw throttling whenever
there are OC events. Log the OC events as debug messages.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:34 -07:00
Wei Ni 4a04beb1bf thermal: tegra: add support for EDP IRQ
Add support to generate OC (over-current) interrupts to
indicate the OC event and print out alarm messages.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:34 -07:00
Wei Ni 5c9d6ac231 thermal: tegra: add set_trips functionality
Implement set_trips ops to set passive trip points.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:33 -07:00
Wei Ni d7180be0d5 thermal: tegra: add support for thermal IRQ
Support to generate an interrupt when the temperature
crosses a programmed threshold and notify the thermal framework.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:33 -07:00
Wei Ni 6ca29b7e82 thermal: tegra: add support for gpu hw-throttle
Add support to trigger pulse skippers on the GPU
when a HOT trip point is triggered. The pulse skippers
can be signalled to throttle at low, medium and high
depths\levels.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:33 -07:00
Wei Ni 2510aa56ab thermal: tegra: support hw and sw shutdown
Currently the critical trip points in thermal framework are the only
way to specify a temperature at which HW should shutdown. This is
insufficient for certain platforms which would want an orderly
software shutdown in addition to HW shutdown.

This change support to parse "nvidia, thermtrips" property,
it allows soctherm DT to specify thermtrip temperatures so that
critical trip points framework can be used for doing software
shutdown.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-13 20:35:32 -07:00
Zhang Rui 6df24c3e81 Merge branches 'thermal-core', 'thermal-built-it' and 'thermal-intel' into next 2019-05-07 21:54:11 +08:00
Srinivas Pandruvada 44c0c23725 drivers: thermal: processor_thermal: Downgrade error message
Downgrade "Unsupported event" message from dev_err to dev_dbg. Otherwise it
floods with this message one some platforms.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-05-07 21:53:43 +08:00
Daniel Lezcano 2e31c8560a thermal/drivers/core: Fix typo in the option name
Unlike the other options, the cpu cooling option is beginning
with a lowercase letter, changing to a uppercase.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-05-06 20:35:24 +08:00
Daniel Lezcano e9cf125bc1 thermal/drivers/core: Remove depends on THERMAL in Kconfig
The dependency on the THERMAL option to be set is already there implicitly
by the "if THERMAL" conditionnal option. The sub Kconfigs do not have to
check against the THERMAL option as they are called from a Kconfig block
which is enabled by the conditionnal option.

Remove the useless "depends on THERMAL" in the Kconfigs.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-05-06 20:35:24 +08:00
Daniel Lezcano 77e1dd46a1 thermal/drivers/core: Remove module unload code
Now the thermal core is no longer compiled as a module. Remove the
unloading module code and move the unregister function to the __init
section.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-05-06 20:35:24 +08:00
Daniel Lezcano 554b3529fe thermal/drivers/core: Remove the module Kconfig's option
The module support for the thermal subsystem makes little sense:
 - some subsystems relying on it are not modules, thus forcing the
   framework to be compiled in
 - it is compiled in for almost every configs, the remaining ones
   are a few platforms where I don't see why we can not switch the thermal
   to 'y'. The drivers can stay in tristate.
 - platforms need the thermal to be ready as soon as possible at boot time
   in order to mitigate

Usually the subsystems framework are compiled-in and the plugs are as
module.

Remove the module option. The removal of the module related dead code will
come after this patch gets in or is acked.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Guenter Roeck <groeck@chromium.org>
For mini2440:
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Paul Burton <paul.burton@mips.com> # MIPS part
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-05-06 20:35:24 +08:00
Wei Wang ff54bbd1be thermal: core: skip update disabled thermal zones after suspend
It is unnecessary to update disabled thermal zones post suspend and
sometimes leads error/warning in bad behaved thermal drivers.

Signed-off-by: Wei Wang <wvw@google.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-05-06 20:35:11 +08:00
Jean-Francois Dagenais f991de53a8 thermal: make device_register's type argument const
...because it can be, the buffer is strlcpy'd into a local buffer in a
thermal struct member.

Signed-off-by: Jean-Francois Dagenais <jeff.dagenais@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-05-06 20:35:11 +08:00
Sumeet Pawnikar 1948d498dc thermal: intel: int340x: processor_thermal_device: simplify to get driver data
This simplifies getting the 'driver_data' from 'struct device' directly.
Going through platform_device or pci_dev is not required. Also removes
condition check as the private data stored with dev pointer, means
irrespective of enumeration mode, we can use dev_get_drvdata().
This removes the unnecessary step back and forth.

Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-04-22 16:51:28 +08:00
Zhang Rui 6eb61a9361 thermal/int3403_thermal: favor _TMP instead of PTYP
All the INT3403 devices with _TMP can be a sensor.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=202671
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-04-22 10:56:40 +08:00
Bob Moore 3278675567 ACPICA: Rename nameseg length macro/define for clarity
ACPICA commit 24870bd9e73d71e2a1ff0a1e94519f8f8409e57d

ACPI_NAME_SIZE changed to ACPI_NAMESEG_SIZE
This clarifies that this is the length of an individual
nameseg, not the length of a generic namestring/namepath.
Improves understanding of the code.

Link: https://github.com/acpica/acpica/commit/24870bd9
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-04-09 11:24:48 +02:00
Zhang Rui 2d7c4e1781 Merge branches 'fixes' and 'thermal-intel' into next 2019-03-18 22:37:44 +08:00
Zhang Rui e925b5be57 thermal/intel_powerclamp: fix truncated kthread name
kthread name only allows 15 characters (TASK_COMMON_LEN is 16).
Thus rename the kthreads created by intel_powerclamp driver from
"kidle_inject/ + decimal cpuid" to "kidle_inj/ + decimal cpuid"
to avoid truncated kthead name for cpu 100 and later.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-03-18 22:26:33 +08:00
Pi-Hsun Shih fb4d83f293 thermal: mtk: Allocate enough space for mtk_thermal.
The mtk_thermal struct contains a 'struct mtk_thermal_bank banks[];',
but the allocation only allocates sizeof(struct mtk_thermal) bytes,
which cause out of bound access with the ->banks[] member. Change it to
a fixed size array instead.

Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-03-18 22:23:10 +08:00
Matthew Garrett 396ee4d0cd thermal/int340x_thermal: fix mode setting
int3400 only pushes the UUID into the firmware when the mode is flipped
to "enable". The current code only exposes the mode flag if the firmware
supports the PASSIVE_1 UUID, which not all machines do. Remove the
restriction.

Signed-off-by: Matthew Garrett <mjg59@google.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-03-18 22:13:21 +08:00
Matthew Garrett 16fc8eca19 thermal/int340x_thermal: Add additional UUIDs
Add more supported DPTF policies than the driver currently exposes.

Signed-off-by: Matthew Garrett <mjg59@google.com>
Cc: Nisha Aram <nisha.aram@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-03-18 22:13:21 +08:00
Shaokun Zhang e0fda7377d thermal: cpu_cooling: Remove unused cur_freq variable
The 'cur_freq' local variable became unused after commit 84fe2cab48
("cpu_cooling: Drop static-power related stuff"), let's remove it.

Cc: Amit Daniel Kachhap <amit.kachhap@gmail.com>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Javi Merino <javi.merino@kernel.org>
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-03-18 22:11:06 +08:00
Phil Elwell 35122495a8 thermal: bcm2835: Fix crash in bcm2835_thermal_debugfs
"cat /sys/kernel/debug/bcm2835_thermal/regset" causes a NULL pointer
dereference in bcm2835_thermal_debugfs. The driver makes use of the
implementation details of the thermal framework to retrieve a pointer
to its private data from a struct thermal_zone_device, and gets it
wrong - leading to the crash. Instead, store its private data as the
drvdata and retrieve the thermal_zone_device pointer from it.

Fixes: bcb7dd9ef2 ("thermal: bcm2835: add thermal driver for bcm2835 SoC")

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-03-18 22:11:06 +08:00
Marek Szyprowski 3b5236cc5d thermal: samsung: Fix incorrect check after code merge
Merge commit 19785cf93b ("Merge branch 'linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal")
broke the code introduced by commit ffe6e16f14 ("thermal: exynos: Reduce
severity of too early temperature read"). Restore the original code from
the mentioned commit to finally fix the warning message during boot:

thermal thermal_zone0: failed to read out thermal zone (-22)

Reported-by: Marian Mihailescu <mihailescu2m@gmail.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Fixes: 19785cf93b ("Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal")
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-03-18 22:11:06 +08:00
Luc Van Oostenryck aa36e36165 thermal/intel_powerclamp: fix __percpu declaration of worker_data
This variable is declared as:
	static struct powerclamp_worker_data * __percpu worker_data;
In other words, a percpu pointer to struct ...

But this variable not used like so but as a pointer to a percpu
struct powerclamp_worker_data.

So fix the declaration as:
	static struct powerclamp_worker_data __percpu *worker_data;

This also quiets Sparse's warnings from __verify_pcpu_ptr(), like:
  494:49: warning: incorrect type in initializer (different address spaces)
  494:49:    expected void const [noderef] <asn:3> *__vpp_verify
  494:49:    got struct powerclamp_worker_data *

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-03-18 22:11:06 +08:00
Linus Torvalds 9f24a81e2e Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal soc updates from Eduardo Valentin:
 "Specifics:

   - mediatek thermal now supports MT8183

   - broadcom thermal now supports Stingray

   - qoirq now supports multiple sensors

   - fixes on different drivers: rcar, tsens, tegra

  Some new drivers are still pending further review and I chose to leave
  them for the next merge window while still sending this material"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
  thermal: rcar_gen3_thermal: Register hwmon sysfs interface
  thermal/qcom/tsens-common : fix possible object reference leak
  thermal: tegra: add get_trend ops
  thermal: tegra: fix memory allocation
  thermal: tegra: remove unnecessary warnings
  thermal: mediatek: add support for MT8183
  dt-bindings: thermal: add binding document for mt8183 thermal controller
  thermal: mediatek: add flag for bank selection
  thermal: mediatek: add thermal controller offset
  thermal: mediatek: add calibration item
  thermal: mediatek: add common index of vts settings.
  thermal: mediatek: fix register index error
  thermal: qoriq: add multiple sensors support
  thermal: broadcom: Add Stingray thermal driver
  dt-bindings: thermal: Add binding document for SR thermal
2019-03-08 09:52:41 -08:00
Rafael J. Wysocki 17162a117c Merge back earlier cpufreq material for v5.1. 2019-02-24 21:18:05 +01:00
Marek Vasut 6269e9f790 thermal: rcar_gen3_thermal: Register hwmon sysfs interface
Register the hwmon sysfs interface on R-Car Gen3 thermal driver to
align it with Gen2 driver. Use devm_add_action() to unregister the
hwmon interface automatically.

Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Wolfram Sang <wsa+renesas@sang-engineering.com>
Cc: linux-renesas-soc@vger.kernel.org
To: linux-pm@vger.kernel.org
From: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-20 17:23:40 -08:00
Peng Hao a245b62be3 thermal/qcom/tsens-common : fix possible object reference leak
of_find_device_by_node() takes a reference to the struct device
when it finds a match via get_device.
We also should make sure to drop the reference to the device
taken by of_find_device_by_node() when returning error.

Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-20 17:23:39 -08:00
Wei Ni 76b1ae8698 thermal: tegra: add get_trend ops
Add support for get_trend ops that allows soctherm
sensors to be used with the step-wise governor.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-20 17:23:38 -08:00
Wei Ni 3d88adf3ef thermal: tegra: fix memory allocation
Fix memory allocation to store the pointers to
thermal_zone_device.

Signed-off-by: Wei Ni <wni@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-20 17:23:37 -08:00
Wei Ni cd28561dce thermal: tegra: remove unnecessary warnings
Convert warnings to info as not all platforms may
have all the thresholds and sensors enabled.

Signed-off-by: Wei Ni <wni@nvidia.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-20 17:23:37 -08:00
Michael Kao a4ffe6b52d thermal: mediatek: add support for MT8183
MT8183 has two built-in thermal controllers with total six thermal
sensors. And it doesn't have bank, so doesn't need to select bank.
This patch adds support for mt8183.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-20 17:23:33 -08:00
Michael Kao cb82aaade9 thermal: mediatek: add flag for bank selection
For past ic designs, the thermal controller should select banks before
reading the thermal sensor.
And the new ic design architecture removes this mechanism.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-05 17:01:47 -08:00
Michael Kao bd9403943d thermal: mediatek: add thermal controller offset
One thermal controller can read four sensors at most,
so we need to add controller_offset for the project with
more than four sensors to reuse the same register settings.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-05 17:01:46 -08:00
Michael Kao f845147669 thermal: mediatek: add calibration item
Add calibration item in thermal_data to support
the project with different calibration coefficient.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-05 17:01:45 -08:00
Michael Kao 1d0819455e thermal: mediatek: add common index of vts settings.
Each project has different number of vts settings.
For the MT2701 just have to set three vts, but the
original code flow add five unnecessary vts.
Add common index of vts settings for scalablity,
and reduce the setting of unnecessary vts.

Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-05 17:01:44 -08:00
Michael Kao eb9aecd90d thermal: mediatek: fix register index error
The index of msr and adcpnp should match the sensor
which belongs to the selected bank in the for loop.

Fixes: b7cf005373 ("thermal: Add Mediatek thermal driver for mt2701.")
Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-05 17:01:35 -08:00
Yuantian Tang 7797ff4248 thermal: qoriq: add multiple sensors support
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>
2019-02-05 16:36:26 -08:00
Pramod Kumar 250e211057 thermal: broadcom: Add Stingray thermal driver
Stingray SoC has six temperature sensor and those are
configured, controlled and accessed to read temperature
and update in DDR memory using m0 firmware.
All six sensors has been given 4 bytes of memory in DDR
to write temperature in millivolts.

This thermal driver read temperature values from DDR
because no direct access to sensors.
Like this all temparature sensors are monitored and
trips at critical temperature.

If driver can't handle thermal runaways because of
any unknown reason, then firmware in m0 Processor
will handle.

Reviewed-by: Ray Jui <ray.jui@broadcom.com>
Reviewed-by: Scott Branden <scott.branden@broadcom.com>
Reviewed-by: Vikram Prakash <vikram.prakash@broadcom.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Pramod Kumar <pramod.kumar@broadcom.com>
Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-05 16:35:57 -08:00
Amit Kucheria bf78f133cd thermal: cpu_cooling: Clarify error message
Make it clear that it is a failure if the cpufreq driver was unable to
register as a cooling device. Makes it easier to find in logs and
grepping for words like fail, err, warn.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-05 15:50:13 -08:00
Amit Kucheria 3079f340ca thermal: of-thermal: Print name of device node with error
Make it easier to debug devicetree definition in case of errors.

Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-02-05 15:49:34 -08:00
Amit Kucheria afa1f2ab43 thermal: cpu_cooling: Require thermal core to be compiled in
The CPU cooling driver (cpu_cooling.c) allows the platform's cpufreq
driver to register as a cooling device and cool down the platform by
throttling the CPU frequency. In order to be able to auto-register a
cpufreq driver as a cooling device from the cpufreq core, we need access
to code inside cpu_cooling.c which, in turn, accesses code inside
thermal core.

CPU_FREQ is a bool while THERMAL is tristate.  In some configurations
(e.g. allmodconfig), CONFIG_THERMAL ends up as a module while
CONFIG_CPU_FREQ is compiled in. This leads to following error:

drivers/cpufreq/cpufreq.o: In function `cpufreq_offline':
cpufreq.c:(.text+0x407c): undefined reference to `cpufreq_cooling_unregister'
drivers/cpufreq/cpufreq.o: In function `cpufreq_online':
cpufreq.c:(.text+0x70c0): undefined reference to `of_cpufreq_cooling_register'

Given that platforms using CPU_THERMAL usually want it compiled-in so it
is available early in boot, make CPU_THERMAL depend on THERMAL being
compiled-in instead of allowing it to be a module.

As a result of this change, get rid of the ugly (!CPU_THERMAL ||
THERMAL) dependency in all cpufreq drivers using CPU_THERMAL.

Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-01-29 11:46:31 +01:00
Linus Torvalds 333478a7eb Merge branch 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management fixes from Zhang Rui:

 - Fix a race condition that sysfs could be accessed before necessary
   initialization in int340x thermal driver. (Aaron Hill)

 - Fix a NULL vs IS_ERR() check in int340x thermal driver. (Dan
   Carpenter)

* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  drivers: thermal: int340x_thermal: Fix sysfs race condition
  thermal: int340x_thermal: Fix a NULL vs IS_ERR() check
2019-01-23 16:23:41 +13:00
Aaron Hill 129699bb8c drivers: thermal: int340x_thermal: Fix sysfs race condition
Changes since V1:
* Use dev_info instead of printk
* Use dev_warn instead of BUG_ON

Previously, sysfs_create_group was called before all initialization had
fully run - specifically, before pci_set_drvdata was called. Since the
sysctl group is visible to userspace as soon as sysfs_create_group
returns, a small window of time existed during which a process could read
from an uninitialized/partially-initialized device.

This commit moves the creation of the sysctl group to after all
initialized is completed. This ensures that it's impossible for
userspace to read from a sysctl file before initialization has fully
completed.

To catch any future regressions, I've added a check to ensure
that proc_thermal_emum_mode is never PROC_THERMAL_NONE when a process
tries to read from a sysctl file. Previously, the aforementioned race
condition could result in the 'else' branch
running while PROC_THERMAL_NONE was set,
leading to a null pointer deference.

Signed-off-by: Aaron Hill <aa1ronham@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-01-18 15:23:04 +08:00
Sinan Kaya 6f9b5e70df drivers: thermal: int340x_thermal: Make PCI dependency explicit
After commit 5d32a66541 (PCI/ACPI: Allow ACPI to be built without
CONFIG_PCI set) dependencies on CONFIG_PCI that previously were
satisfied implicitly through dependencies on CONFIG_ACPI have to be
specified directly.

IOSF_CORE depends on PCI. For this reason, add a direct dependency on
CONFIG_PCI.

Fixes: 5d32a66541 ("PCI/ACPI: Allow ACPI to be built without CONFIG_PCI set")
Signed-off-by: Sinan Kaya <okaya@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-01-15 23:17:40 +01:00
Dan Carpenter 3fe931b31a thermal: int340x_thermal: Fix a NULL vs IS_ERR() check
The intel_soc_dts_iosf_init() function doesn't return NULL, it returns
error pointers.

Fixes: 4d0dd6c157 ("Thermal/int340x/processor_thermal: Enable auxiliary DTS for Braswell")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
2019-01-10 22:43:59 +08:00
Linus Torvalds 5c4a60831a Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux
Pull thermal management updates from Zhang Rui:

 - Add locking for cooling device sysfs attribute in case the cooling
   device state is changed by userspace and thermal framework
   simultaneously. (Thara Gopinath)

 - Fix a problem that passive cooling is reset improperly after system
   suspend/resume. (Wei Wang)

 - Cleanup the driver/thermal/ directory by moving intel and qcom
   platform specific drivers to platform specific sub-directories. (Amit
   Kucheria)

 - Some trivial cleanups. (Lukasz Luba, Wolfram Sang)

* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
  thermal/intel: fixup for Kconfig string parsing tightening up
  drivers: thermal: Move QCOM_SPMI_TEMP_ALARM into the qcom subdir
  drivers: thermal: Move various drivers for intel platforms into a subdir
  thermal: Fix locking in cooling device sysfs update cur_state
  Thermal: do not clear passive state during system sleep
  thermal: zx2967_thermal: simplify getting .driver_data
  thermal: st: st_thermal: simplify getting .driver_data
  thermal: spear_thermal: simplify getting .driver_data
  thermal: rockchip_thermal: simplify getting .driver_data
  thermal: int340x_thermal: int3400_thermal: simplify getting .driver_data
  thermal: remove unused function parameter
2019-01-05 16:07:28 -08:00
Linus Torvalds c280230254 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal
Pull thermal SoC updates from Eduardo Valentin:

 - Tegra DT binding documentation for Tegra194

 - Armada now supports ap806 and cp110

 - RCAR thermal now supports R8A774C0 and R8A77990

 - Fixes on thermal_hwmon, IMX, generic-ADC, ST, RCAR, Broadcom,
   Uniphier, QCOM, Tegra, PowerClamp, and Armada thermal drivers.

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal: (22 commits)
  thermal: generic-adc: Fix adc to temp interpolation
  thermal: rcar_thermal: add R8A77990 support
  dt-bindings: thermal: rcar-thermal: add R8A77990 support
  thermal: rcar_thermal: add R8A774C0 support
  dt-bindings: thermal: rcar-thermal: add R8A774C0 support
  dt-bindings: cp110: document the thermal interrupt capabilities
  dt-bindings: ap806: document the thermal interrupt capabilities
  MAINTAINERS: thermal: add entry for Marvell MVEBU thermal driver
  thermal: armada: add overheat interrupt support
  thermal: st: fix Makefile typo
  thermal: uniphier: Convert to SPDX identifier
  thermal/intel_powerclamp: Change to use DEFINE_SHOW_ATTRIBUTE macro
  thermal: tegra: soctherm: Change to use DEFINE_SHOW_ATTRIBUTE macro
  dt-bindings: thermal: tegra-bpmp: Add Tegra194 support
  thermal: imx: save one condition block for normal case of nvmem initialization
  thermal: imx: fix for dependency on cpu-freq
  thermal: tsens: qcom: do not create duplicate regmap debugfs entries
  thermal: armada: Use PTR_ERR_OR_ZERO in armada_thermal_probe_legacy()
  dt-bindings: thermal: rcar-gen3-thermal: All variants use 3 interrupts
  thermal: broadcom: use devm_thermal_zone_of_sensor_register
  ...
2019-01-05 16:01:16 -08:00
Stephen Rothwell 24ef9ec891 thermal/intel: fixup for Kconfig string parsing tightening up
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2019-01-03 23:52:28 +08:00
Bjorn Andersson 9d216211fd thermal: generic-adc: Fix adc to temp interpolation
First correct the edge case to return the last element if we're
outside the range, rather than at the last element, so that
interpolation is not omitted for points between the two last entries in
the table.

Then correct the formula to perform linear interpolation based the two
points surrounding the read ADC value. The indices for temp are kept as
"hi" and "lo" to pair with the adc indices, but there's no requirement
that the temperature is provided in descendent order. mult_frac() is
used to prevent issues with overflowing the int.

Cc: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:23 -08:00
Yoshihiro Kaneko e36e13003e thermal: rcar_thermal: add R8A77990 support
Add support for R-Car E3 (R8A77990) thermal support.

Signed-off-by: Yoshihiro Kaneko <ykaneko0929@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:22 -08:00
Fabrizio Castro b8d3d11203 thermal: rcar_thermal: add R8A774C0 support
Add thermal support for the RZ/G2E SoC (a.k.a. R8A774C0).

Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:20 -08:00
Miquel Raynal 879d7362d1 thermal: armada: add overheat interrupt support
The IP can manage to trigger interrupts on overheat situation from all
the sensors.

However, the interrupt source changes along with the last selected
source (ie. the last read sensor), which is an inconsistent behavior.
Avoid possible glitches by always selecting back only one channel which
will then be referenced as the "overheat_sensor" (arbitrarily: the first
in the DT which has a critical trip point filled in).

It is possible that the scan of all thermal zone nodes did not bring a
critical trip point from which the overheat interrupt could be
configured. In this case just complain but do not fail the probe.

Also disable sensor switch during overheat situations because changing
the channel while the system is too hot could clear the overheat state
by changing the source while the temperature is still very high.

Even if the overheat state is not declared, overheat interrupt must be
cleared by reading the DFX interrupt cause _after_ the temperature has
fallen down to the low threshold, otherwise future possible interrupts
would not be served. A work polls the corresponding register until the
overheat flag gets cleared in this case.

Suggested-by: David Sniatkiwicz <davidsn@marvell.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:17 -08:00
Arnd Bergmann 5a78ad6d9c thermal: st: fix Makefile typo
When STM32_THERMAL is enabled, this overrides all previously
enabled files in the same directory, as seen from this link failure:

ERROR: "st_thermal_pm_ops" [drivers/thermal/st/st_thermal_syscfg.ko] undefined!
ERROR: "st_thermal_register" [drivers/thermal/st/st_thermal_syscfg.ko] undefined!
ERROR: "st_thermal_unregister" [drivers/thermal/st/st_thermal_syscfg.ko] undefined!

The correct syntax in Makefile requires using += instead of :=.

Fixes: 1d69315560 ("thermal: add stm32 thermal driver")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:16 -08:00
Kunihiko Hayashi ca74472dea thermal: uniphier: Convert to SPDX identifier
This converts license boilerplate to SPDX identifier, and removes
unnecessary lines.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:16 -08:00
Yangtao Li 8632ed49c8 thermal/intel_powerclamp: Change to use DEFINE_SHOW_ATTRIBUTE macro
Use macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:15 -08:00
Yangtao Li 05c1b7058a thermal: tegra: soctherm: Change to use DEFINE_SHOW_ATTRIBUTE macro
Use macro to simplify the code.

Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:14 -08:00
Anson Huang 925b383618 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>
2019-01-02 04:47:12 -08:00
Anson Huang c589c56671 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>
2019-01-02 04:47:12 -08:00
Srinivas Kandagatla 4ab248b3b1 thermal: tsens: qcom: do not create duplicate regmap debugfs entries
Regmap would use device name to create debugfs entries. If the device
has multiple regmaps it is recommended to use name field in regmap_config.
Fix this by providing name to the regmap configs correctly.

Without this patch we would see below error on DB820c.

qcom-tsens 4a9000.thermal-sensor: Failed to create 4a9000.thermal-sensor
debugfs directory

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Amit Kucheria <amit.kucheria@linaro.org>
Tested-by: Amit Kucheria <amit.kucheria@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:11 -08:00
YueHaibing ac31f6e25d thermal: armada: Use PTR_ERR_OR_ZERO in armada_thermal_probe_legacy()
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:10 -08:00
Julia Lawall adad7c7d6a thermal: broadcom: use devm_thermal_zone_of_sensor_register
Using devm_thermal_zone_of_sensor_register allows to simplify some
error handling code, drop a label, and drop the remove function.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:09 -08:00
Matthias Brugger d56c19d07e thermal: bcm2835: enable hwmon explicitly
By defaul of-based thermal driver do not enable hwmon.
This patch does this explicitly, so that the temperature can be read
through the common hwmon sysfs.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:47:08 -08:00
Eduardo Valentin 03334ba8b4 thermal: hwmon: inline helpers when CONFIG_THERMAL_HWMON is not set
Avoid warnings like this:
thermal_hwmon.h:29:1: warning: ‘thermal_remove_hwmon_sysfs’ defined but not used [-Wunused-function]
 thermal_remove_hwmon_sysfs(struct thermal_zone_device *tz)

Fixes: 0dd88793aa ("thermal: hwmon: move hwmon support to single file")
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-01-02 04:43:00 -08:00