27 May, 2016
1 commit
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Pull thermal management updates from Zhang Rui:
- Introduce generic ADC thermal driver, based on OF thermal (Laxman
Dewangan)- Introduce new thermal driver for Tango chips (Marc Gonzalez)
- Rockchip driver support for RK3399, RK3366, and some fixes (Caesar
Wang, Elaine Zhang and Shawn Lin)- Add CPU power cooling model to Mediatek thermal driver (Dawei Chien)
- Wider usage of dev_thermal_zone_of_sensor_register (Eduardo Valentin)
- TI thermal driver gained a new maintainer (Keerthy).
- Enabled powerclamp driver by checking CPU feature and package cstate
counter instead of CPU whitelist (Jacob Pan)- Various fixes on thermal governor, OF thermal, Tegra, and RCAR
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (50 commits)
thermal: tango: initialize TEMPSI_CFG
thermal: rockchip: use the usleep_range instead of udelay
thermal: rockchip: add the notes for better reading
thermal: rockchip: Support RK3366 SoCs in the thermal driver
thermal: rockchip: handle the power sequence for tsadc controller
thermal: rockchip: update the tsadc table for rk3399
thermal: rockchip: fixes the code_to_temp for tsadc driver
thermal: rockchip: disable thermal->clk in err case
thermal: tegra: add Tegra132 specific SOC_THERM driver
thermal: fix ptr_ret.cocci warnings
thermal: mediatek: Add cpu dynamic power cooling model.
thermal: generic-adc: Add ADC based thermal sensor driver
thermal: generic-adc: Add DT binding for ADC based thermal sensor
thermal: tegra: fix static checker warning
thermal: tegra: mark PM functions __maybe_unused
thermal: add temperature sensor support for tango SoC
thermal: hisilicon: fix IRQ imbalance enabling
thermal: hisilicon: support to use any sensor
thermal: rcar: Remove binding docs for r8a7794
thermal: tegra: add PM support
...
18 May, 2016
1 commit
17 May, 2016
36 commits
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TEMPSI_CFG is not equal to 0 at reset. It must be initialized.
Signed-off-by: Marc Gonzalez
Signed-off-by: Eduardo Valentin -
Documentation/timers/timers-howto.txt recommends to use
usleep_range on delays > 10usec.
The usleep_range indeed reduces CPU load, since the udelay will busy wait
for enough loop cycles to achieve the desired delay.Fixes commit b06c52db39fd ("thermal: rockchip:
handle the power sequence for tsadc controller").Cc: Zhang Rui
Cc: Eduardo Valentin
Cc: Heiko Stuebner
Suggested-by: Eduardo Valentin
Signed-off-by: Caesar Wang
Signed-off-by: Eduardo Valentin -
To update the notes for keeping in mind that quickly in case
someone re-read this driver in the future.Signed-off-by: Caesar Wang
Cc: Zhang Rui
Cc: Eduardo Valentin
Cc: Heiko Stuebner
Signed-off-by: Eduardo Valentin -
The RK3366 SoCs have two Temperature Sensors, channel 0 is for CPU
channel 1 is for GPU.Signed-off-by: Elaine Zhang
Signed-off-by: Caesar Wang
Signed-off-by: Eduardo Valentin -
This adds the grf property to handle the tsadc power sequence on
rockchip some SoCs.Verified on rk3399 can work with this patch on now.
while true; do grep "" /sys/class/thermal/thermal_zone[0-1]/temp
sleep .5; done
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41111
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41111
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41666
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41111
/sys/class/thermal/thermal_zone0/temp:40555
/sys/class/thermal/thermal_zone1/temp:41111
/sys/class/thermal/thermal_zone0/temp:40555Signed-off-by: Caesar Wang
Cc: Zhang Rui
Cc: Eduardo Valentin
Cc: Heiko Stuebner
Signed-off-by: Eduardo Valentin -
This patch fixes the incorrect conversion table.
The Code to Temperature mapping is updated based on sillcon results.Fixes commit b0d70338bca22cb14
("thermal: rockchip: Support the RK3399 SoCs in thermal driver").Signed-off-by: Caesar Wang
Cc: Zhang Rui
Cc: Eduardo Valentin
Cc: Heiko Stuebner
Signed-off-by: Eduardo Valentin -
We should judge the table.id[mid].code insearch algorithm on matter the
adc value increment or decrement.Or otherwise, the temperature return the incorrect value in some cases.
[ 1.438589] adc_val=402,temp=-40000
[ 1.438903] adc_val=403,temp=-39375
[ 1.439217] adc_val=404,temp=-38750
...
[ 1.441102] adc_val=410,temp=-40000
[ 1.441416] adc_val=411,temp=-34445
[ 1.441737] adc_val=412,temp=-33889
...Let's fix it right now.
Fixes commit 020ba95dbbbe ("thermal: rockchip:
Add the sort mode for adc value increment or decrement").Reported-by: Rocky Hao
Signed-off-by: Caesar Wang
Cc: Zhang Rui
Cc: Eduardo Valentin
Cc: Heiko Stuebner
Signed-off-by: Eduardo Valentin -
Disable thermal->clk when enabling pclk fails in
resume routine.Signed-off-by: Shawn Lin
Reviewed-by: Heiko Stuebner
Reviewed-by: Caesar Wang
Signed-off-by: Caesar Wang
Signed-off-by: Eduardo Valentin -
add Tegra132 specific SOC_THERM driver.
Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
drivers/thermal/tango_thermal.c:86:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
CC: Marc Gonzalez
Signed-off-by: Fengguang Wu
Signed-off-by: Eduardo Valentin -
In some of platform, thermal sensors like NCT thermistors are
connected to the one of ADC channel. The temperature is read by
reading the voltage across the sensor resistance via ADC. Lookup
table for ADC read value to temperature is referred to get
temperature. ADC is read via IIO framework.Add support for thermal sensor driver which read the voltage across
sensor resistance from ADC through IIO framework.Acked-by: Jonathan Cameron
Signed-off-by: Laxman Dewangan
Signed-off-by: Eduardo Valentin -
There has a static checker warning:
warn: variable dereferenced before check 'dev' (see line 222)Since check 'dev' is unnecessary, so remove this check.
Fixes: ee6d79f202a4 ("thermal: tegra: add thermtrip function")
Signed-off-by: Wei Ni
Reported-by: Dan Carpenter
Signed-off-by: Eduardo Valentin -
After the PM support has been added to this driver, we get
a harmless warning when that support is disabled at compile
time:drivers/thermal/tegra/soctherm.c:641:12: error: 'soctherm_resume' defined but not used [-Werror=unused-function]
static int soctherm_resume(struct device *dev)This marks the two PM functions as __maybe_unused to shut up
the warning. This is preferred over adding an #ifdef around
them, as it is harder to get wrong, and provides better
compile-time coverage.Signed-off-by: Arnd Bergmann
Fixes: a134b4143b65 ("thermal: tegra: add PM support")
Signed-off-by: Eduardo Valentin -
The Tango thermal driver provides support for the primitive temperature
sensor embedded in Tango chips since the SMP8758.This sensor only generates a 1-bit signal to indicate whether the die
temperature exceeds a programmable threshold.Signed-off-by: Marc Gonzalez
Signed-off-by: Eduardo Valentin -
When register sensors into thermal zone during initialization phase, it
reports error for IRQ imbalance enabling:[ 2.040713] WARNING: at kernel/irq/manage.c:513
[ 2.040719] Modules linked in:
[ 2.040721]
[ 2.040729] CPU: 1 PID: 804 Comm: irq/33-hisi_the Not tainted 4.5.0-rc4+ #505
[ 2.040732] Hardware name: HiKey Development Board (DT)
[ 2.040736] task: ffffffc03ae82580 ti: ffffffc0379c8000 task.ti: ffffffc0379c8000
[ 2.040745] PC is at __enable_irq+0x74/0x84
[ 2.040749] LR is at __enable_irq+0x74/0x84This warning is for IRQ imbalance enabling, which is caused by
enable_irq() twice. During sensor's initialization it tries to enable
IRQ, the driver will call thermal_zone_of_sensor_register() to bind
sensors and read sensor's temperature. But at this moment the flag
"data->irq_enabled" has been not initialized as correct state, so it
finally introduces the function enabled_irq() to be called twice. In
essentially this is caused by the flag "data->irq_enabled" is
inconsistent with real hardware IRQ enabling state.So this patch is to fix this issue, firstly init "irq_enabled" flag
before binding sensors to thermal zone. Also change to use the function
irq_get_irqchip_state() to read back real interrupt line state.Signed-off-by: Leo Yan
Signed-off-by: Eduardo Valentin -
In current code sensor driver registers all 4 sensors together and if
any of them has not bound to thermal zone successfully then driver will
return failure for driver's initialization. As a result, if DT binds
thermal zone with only one sensor, then the thermal driver will not work
well anymore.So this patch is to fix this issue. It allows the thermal sensor driver
can register any number sensors at initialization phase, and fix up code
for other related code to skip related sensor's accessing if the sensor
has not been enabled in initialization phase.Signed-off-by: Leo Yan
Signed-off-by: Eduardo Valentin -
Add suspend/resume function in soctherm driver.
Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
Handle HW initialization in one function soctherm_init(),
so that the codes are more clear.Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
Handle clock enable/disable codes in one function
soctherm_clk_enable(), so that the codes are more clear.Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
Add support for hardware critical thermal limits to the
SOC_THERM driver. It use the Linux thermal framework to
create critical trip temp, and set it to SOC_THERM hardware.
If these limits are breached, the chip will reset, and if
appropriately configured, will turn off the PMIC.This support is critical for safe usage of the chip.
Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
In current of-thermal, the .set_trip_temp only support to
set trip_temp for SW. But some sensors support to set
trip_temp on hardware, so that can trigger interrupt,
shutdown or any other events.
This patch adds .set_trip_temp() callback in
thermal_zone_of_device_ops{}, so that the sensor device can
use it to set trip_temp on hardware.Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
Add a debugfs interface to show register contents for debug.
Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
Add Tegra210 specific SOC_THERM driver.
Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
Split most of the Tegra124 data and code into a Tegra124-specific
file.
Split most of the fuse-related code into a fuse-related source file.
This is in preparation for adding a Tegra210-specific driver in a
future patch.Beyond the maintainability improvements, this is intended to separate
chip-specific ATE and characterization-related hacks into chip-specific
files, in the hopes that they won't pollute code for other chips.Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
Get rid of T124-specific PDIV/HOTSPOT hack.
tegra-soctherm.c contained a hack to set the SENSOR_PDIV and
SENSOR_HOTSPOT_OFFSET registers - it just did two writes of
T124-specific opaque values. Convert these into a form that can be
substituted on a per-chip basis, and into structure fields that have
at least some independent meaning.Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
Combine sensor group-related data structures into struct
tegra_tsensor_group. This provides a single location for
sensor group data storage.
More sensor group data will be added in subsequent patches.Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
Move Tegra soctherm driver to tegra directory, it's easy to maintain
and add more new function support for Tegra platforms.
This will also help to split soctherm driver into common parts and
chip specific data related parts.Signed-off-by: Wei Ni
Signed-off-by: Eduardo Valentin -
This changes the driver to use the devm_ version
of thermal_zone_of_sensor_register and cleans
up the local points and unregister calls.Cc: Zhang Rui
Cc: linux-pm@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Keerthy
Signed-off-by: Eduardo Valentin -
This changes the driver to use the devm_ version
of thermal_zone_of_sensor_register and cleans
up the local points and unregister calls.Cc: Zhang Rui
Cc: Stephen Warren
Cc: Thierry Reding
Cc: Alexandre Courbot
Cc: linux-pm@vger.kernel.org
Cc: linux-tegra@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin -
This changes the driver to use the devm_ version
of thermal_zone_of_sensor_register and cleans
up the local points and unregister calls.Cc: Zhang Rui
Cc: Heiko Stuebner
Cc: linux-pm@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-rockchip@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Tested-by: Caesar Wang
Reviewed-by: Caesar Wang
Reviewed-by: Heiko Stuebner
Signed-off-by: Eduardo Valentin -
This changes the driver to use the devm_ version
of thermal_zone_of_sensor_register and cleans
up the local points and unregister calls.Cc: Zhang Rui
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin -
This changes the driver to use the devm_ version
of thermal_zone_of_sensor_register and cleans
up the local points and unregister calls.Cc: Zhang Rui
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin -
This changes the driver to use the devm_ version
of thermal_zone_of_sensor_register and cleans
up the local points and unregister calls.Cc: Zhang Rui
Cc: Matthias Brugger
Cc: linux-pm@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin -
This changes the driver to use the devm_ version
of thermal_zone_of_sensor_register and cleans
up the local points and unregister calls.Cc: Zhang Rui
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Eduardo Valentin -
of_node_put is iterating through all terms in the tbps array even though
the bind has failed. We need to only iterate through the terms that have
already passed the binding step.Cc: Zhang Rui
Cc: Eduardo Valentin
Cc: linux-pm@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ulises Brindis
Signed-off-by: Eduardo Valentin -
When performing a suspend operation, the kernel brings all of the
non-boot CPUs offline, calling the hot plug notifiers with the flag,
CPU_TASKS_FROZEN, set in the action code. Similarly, during resume,
the CPUs are brought back online, but again the notifiers have the
FROZEN flag set.While some very few drivers really need to treat suspend/resume
specially, this driver unintentionally ignores the notifications.This patch changes the driver to cancel its work item when the CPU
goes down, even during a suspend operation. As a result, the
suspended state is no longer a special case.Cc: Zhang Rui
Cc: Eduardo Valentin
Cc: linux-pm@vger.kernel.org
Signed-off-by: Richard Cochran
Signed-off-by: Zhang Rui
16 May, 2016
1 commit
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Bang-bang thermal governor uses trip point hysteresis to make decisions.
Hysteresis is a required property in the device tree for trip points, but it is
an optional thermal zone device operation. Hence, we need to check whether the
function pointer is valid or not.If it is not available, we assume the hysteresis to be zero. Consequently, a
highly varying temperature will make the governor continuosly switch a cooling
device ON and OFF.CC: Zhang Rui
CC: Eduardo Valentin
CC: Peter Feuerer
Signed-off-by: Michele Di Giorgio
Signed-off-by: Zhang Rui
11 May, 2016
1 commit
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INT3406 ACPI device object resembles an ACPI video output device, but its
_BCM is said to be deprecated and should not be used. So we will make
use of the raw interface to do the actual cooling.Signed-off-by: Aaron Lu
Acked-by: Zhang Rui
Signed-off-by: Rafael J. Wysocki
