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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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
"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: bcb7dd9ef206 ("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>
Merge commit 19785cf93b6c ("Merge branch 'linus' of
git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal")
broke the code introduced by commit ffe6e16f14fa ("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: 19785cf93b6c ("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>
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>
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
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
The index of msr and adcpnp should match the sensor
which belongs to the selected bank in the for loop.
Fixes: b7cf0053738c ("thermal: Add Mediatek thermal driver for mt2701.")
Signed-off-by: Michael Kao <michael.kao@mediatek.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
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>
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>
