Commit Graph

17 Commits

Author SHA1 Message Date
Srinath Mannam fcc6d4cada thermal: broadcom: Remove ACPI support
Unlike DT framework, thermal-zones and its parameters can't be parsed
using ACPI framework. So that ACPI support is removed in this driver.

Signed-off-by: Srinath Mannam <srinath.mannam@broadcom.com>
Reported-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2019-05-14 07:00:37 -07:00
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
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
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
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
Julia Lawall 1aea7aee80 thermal: broadcom: constify thermal_zone_of_device_ops structure
The thermal_zone_of_device_ops structure can be const as it is only
passed as the last argument of thermal_zone_of_sensor_register
and the corresponding parameter is declared as const.

Done with the help of Coccinelle.

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>
2018-12-05 06:47:46 -08:00
Stefan Wahren 6085c13351 thermal: bcm2835: Switch to SPDX identifier
Adopt the SPDX license identifier headers to ease license compliance
management.

Cc: Martin Sperl <kernel@martin.sperl.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2018-12-04 21:35:33 -08:00
Geert Uytterhoeven bd2a07f71a thermal: bcm2835: Stop using printk format %pCr
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>
2018-06-05 09:43:38 +02:00
Brian Norris 9e03cf1b2d thermal: add brcmstb AVS TMON driver
The AVS TMON core provides temperature readings, a pair of configurable
high- and low-temperature threshold interrupts, and an emergency
over-temperature chip reset. The driver utilizes the first two to
provide temperature readings and high-temperature notifications to
applications. The over-temperature reset is not exposed to
applications; this reset threshold is critical to the system and should
be set with care within the bootloader.

Applications may choose to utilize the notification mechanism, the
temperature reading mechanism (e.g., through polling), or both.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-10-31 19:32:19 -07:00
Julia Lawall 28e6c992eb thermal: bcm2835: constify thermal_zone_of_device_ops structures
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>
2017-08-11 11:38:30 +08:00
Zhang Rui 467aebee87 Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal into thermal-soc 2017-07-05 14:51:32 +08:00
Dan Carpenter 1fe3854a83 thermal: bcm2835: fix an error code in probe()
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: bcb7dd9ef2 ("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>
2017-06-30 16:46:11 -07:00
Jon Mason a54c51863e thermal: broadcom: ns-thermal: default on iProc SoCs
Tweak the Kconfig description to mention support for NSP and make the
default on for iProc based platforms.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-05-23 20:09:34 -07:00
Rafał Miłecki 6892cf07e7 thermal: bcm2835: move to the broadcom subdirectory
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>
2017-04-23 08:55:37 -07:00
Rafał Miłecki cb9b323b53 thermal: broadcom: ns: specify myself as MODULE_AUTHOR
Just in case someone uses modinfo to find (blame) me.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-04-23 08:54:52 -07:00
Rafał Miłecki a94cb7eeec thermal: broadcom: add Northstar thermal driver
Northstar is a SoC family commonly used in home routers. This commit
adds a driver for checking CPU temperature. As Northstar Plus seems to
also have this IP block this new symbol gets ARCH_BCM_IPROC dependency.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
2017-04-06 21:45:19 -07:00