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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>
The driver is using the devm_thermal_of_zone_device_register().
In the error path of the function calling
devm_thermal_of_zone_device_register(), the function
devm_thermal_of_zone_unregister() should be called instead of
thermal_of_zone_unregister(), otherwise this one will be called twice
when the device is freed.
The same happens for the remove function where the devm_ guarantee the
thermal_of_zone_unregister() will be called, so adding this call in
the remove function will lead to a double free also.
Use devm_ variant in the error path of the probe function.
Remove thermal_of_zone_unregister() in the remove function.
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20230404075138.2914680-1-daniel.lezcano@linaro.org
The thermal->tzp->no_hwmon parameter is only used when calling
thermal_zone_device_register().
Setting it to 'false' before calling thermal_add_hwmon_sysfs() has no
effect.
Remove the call and again prevent the drivers to access the thermal
internals.
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> #R-Car
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Florian Fainelli <f.fainelli@gmail.com> #Broadcom
Acked-by: Heiko Stuebner <heiko@sntech.de> #rockchip
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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>
As the name states "thermal_core.h" is the header file for the core
components of the thermal framework.
Too many drivers are including it. Hopefully the recent cleanups
helped to self encapsulate the code a bit more and prevented the
drivers to need this header.
Remove this inclusion in every place where it is possible.
Some other drivers did a confusion with the core header and the one
exported in linux/thermal.h. They include the former instead of the
latter. The changes also fix this.
The tegra/soctherm driver still remains as it uses an internal
function which need to be replaced.
The Intel HFI driver uses the netlink internal framework core and
should be changed to prevent to deal with the internals.
No functional changes intended.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com> # armada_thermal.c
Reviewed-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com> # uniphier_thermal.c
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> # rcar_gen3_thermal.c
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org> # amlogic_thermal.c
Acked-by: Florian Fainelli <f.fainelli@gmail.com> # bcm2835_thermal.c
Acked-by: Thierry Reding <treding@nvidia.com> # tegra30-tsensor.c
Link: https://lore.kernel.org/r/20230206153432.1017282-1-daniel.lezcano@linaro.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.
Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/202301181636223863583@zte.com.cn
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
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>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20221003092602.1323944-24-daniel.lezcano@linaro.org
The thermal OF code has a new API allowing to migrate the OF
initialization to a simpler approach. The ops are no longer device
tree specific and are the generic ones provided by the core code.
Convert the ops to the thermal_zone_device_ops format and use the new
API to register the thermal zone with these generic ops.
Signed-off-by: Daniel Lezcano <daniel.lezcano@linexp.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20220804224349.1926752-11-daniel.lezcano@linexp.org
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
There is a error message within devm_ioremap_resource already, so
remove the dev_err call to avoid redundant error message.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Ruiqi Gong <gongruiqi1@huawei.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20210408100329.7585-1-gongruiqi1@huawei.com
When calling debugfs functions, there is no need to ever check the
return value. The function can work or not, but the code logic should
never do something different based on this.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Florian Fainelli <f.fainelli@gmail.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Scott Branden <sbranden@broadcom.com>
Cc: bcm-kernel-feedback-list@broadcom.com
Cc: linux-pm@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
"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>
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
...
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>
Printk format "%pCr" will be removed soon, as clk_get_rate() must not be
called in atomic context.
Replace it by printing the variable that already holds the clock rate.
Note that calling clk_get_rate() is safe here, as the code runs in task
context.
Link: http://lkml.kernel.org/r/1527845302-12159-3-git-send-email-geert+renesas@glider.be
To: Jia-Ju Bai <baijiaju1990@gmail.com>
To: Jonathan Corbet <corbet@lwn.net>
To: Michael Turquette <mturquette@baylibre.com>
To: Stephen Boyd <sboyd@kernel.org>
To: Zhang Rui <rui.zhang@intel.com>
To: Eduardo Valentin <edubezval@gmail.com>
To: Eric Anholt <eric@anholt.net>
To: Stefan Wahren <stefan.wahren@i2se.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-doc@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: linux-serial@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-renesas-soc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: stable@vger.kernel.org # 4.12+
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
The thermal_zone_of_device_ops structure is only passed as the fourth
argument to thermal_zone_of_sensor_register, which is declared as const.
Thus the thermal_zone_of_device_ops structure itself can be const.
Done with the help of Coccinelle.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
This causes a static checker because we're passing a valid pointer to
PTR_ERR(). "err" is already the correct error code, so we can just
delete this line.
Fixes: bcb7dd9ef206 ("thermal: bcm2835: add thermal driver for bcm2835 SoC")
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
We already have 2 Broadcom drivers and at least 1 more is coming. This
made us create broadcom subdirectory where bcm2835 should be moves now.
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
