of_device_id is always used as const.
(See driver.of_match_table and open firmware functions)
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Some temperature sensors only get updated every few seconds and while
waiting for the first irq reporting a (new) temperature to happen there
get_temp operand will return -EAGAIN as it does not have any data to report
yet.
Not logging an error in this case avoids messages like these from showing
up in dmesg on affected systems:
[ 1.219353] thermal thermal_zone0: failed to read out thermal zone 0
[ 2.015433] thermal thermal_zone0: failed to read out thermal zone 0
[ 2.416737] thermal thermal_zone0: failed to read out thermal zone 0
Reviewed-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Default attributes are created when the device is registered. Attributes
created after device registration can lead to race conditions, where user space
(e.g. udev) sees the device but not the attributes.
Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
When thermal zone device register fails or on module exit, the memory
for aux_trip is not freed. This change fixes this issue.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
This patch fixes the wrong control of PD_DET_EN (power down detection mode)
for Exynos7 because exynos7_tmu_control() always enables the power down detection
mode regardless 'on' parameter.
Cc: Zhang Rui <rui.zhang@intel.com>
Cc: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Tested-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
It is possible that _ART/_TRT tables are missing or have errors.
Ignore those failures, as INT3400 thermal zone is still required
for _OSC or mode switch.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Swap interrupt disable and thermal zone unregistration in the error and
remove paths, to make them more symmetrical with the initialization
path.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
As soon as the interrupt has been enabled by devm_request_irq(), the
interrupt routine may be called, depending on the current status of the
hardware.
However, at that point rcar_thermal_common hasn't been initialized
complely yet. E.g. rcar_thermal_common.base is still NULL, causing a
NULL pointer dereference:
Unable to handle kernel NULL pointer dereference at virtual address 0000000c
pgd = c0004000
[0000000c] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.19.0-rc7-ape6evm-04564-gb6e46cb7cbe82389 #30
Hardware name: Generic R8A73A4 (Flattened Device Tree)
task: ee8953c0 ti: ee896000 task.ti: ee896000
PC is at rcar_thermal_irq+0x1c/0xf0
LR is at _raw_spin_lock_irqsave+0x48/0x54
Postpone the call to devm_request_irq() until all initialization has
been done to fix this.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
The cpufreq_cooling_unregister() function tests whether its argument is NULL
and then returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Fix following build warning if CONFIG_PM_SLEEP is not set:
drivers/thermal/ti-soc-thermal/ti-bandgap.c:1478:12: warning: 'ti_bandgap_suspend' defined but not used [-Wunused-function]
static int ti_bandgap_suspend(struct device *dev)
^
drivers/thermal/ti-soc-thermal/ti-bandgap.c:1492:12: warning: 'ti_bandgap_resume' defined but not used [-Wunused-function]
static int ti_bandgap_resume(struct device *dev)
^
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Grygorii Strashko <Grygorii.Strashko@linaro.org>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
The exynos_tmu_data() function should on entrance test not only for valid
data pointer, but also for data->tmu_read one.
It is important, since afterwards it is dereferenced to get temperature code.
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Pull more thermal managament updates from Zhang Rui:
"Specifics:
- Exynos thermal driver refactoring. Several cleanups, code
optimization, unused symbols removal, and unused feature removal in
Exynos thermal driver. Thanks Lukasz for this effort.
- Exynos thermal driver support to OF thermal. After the code
refactoring, the driver earned the support to OF thermal. Chip
thermal data were moved from driver code to DTS, reducing the code
footprint. Thanks Lukasz for this.
- After receiving the OF thermal support, the exynos thermal driver
now must allow modular build. Thanks Arnd for detecting, reporting
and fixing this.
- Exynos thermal driver support to Exynos 7 SoC. Thanks Abhilash for
this.
- Accurate temperature reporting on Rockchip thermal driver, thanks
to Caesar.
- Fix on how OF thermal enables its zones, thanks Lukasz for fixing.
- Fixes in OF thermal examples under Documentation/. Thanks Srinivas
for fixing"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux-soc-thermal:
thermal: exynos: Add TMU support for Exynos7 SoC
dts: Documentation: Add documentation for Exynos7 SoC thermal bindings
cpufreq: exynos: allow modular build
thermal: Fix examples in DT documentation
thermal: exynos: Correct sanity check at exynos_report_trigger() function
thermal: Kconfig: Remove config for not used EXYNOS_THERMAL_CORE
thermal: exynos: Remove exynos_tmu_data.c file
thermal: rockchip: make temperature reporting much more accurate
thermal: exynos: Remove exynos_thermal_common.[c|h] files
thermal: samsung: core: Exynos TMU rework to use device tree for configuration
dts: Documentation: Update exynos-thermal.txt example for Exynos5440
dts: Documentation: Extending documentation entry for exynos-thermal
cpufreq: exynos: Use device tree to determine if cpufreq cooling should be registered
thermal: exynos: Modify exynos thermal code to use device tree for cpu cooling configuration
thermal: exynos: Provide thermal_exynos.h file to be included in device tree files
thermal: exynos: cosmetic: Correct comment format
thermal: of: Enable thermal_zoneX when sensor is correctly added
Pull thermal managament updates from Zhang Rui:
"Specifics:
- Abstract the code and introduce helper functions for all int340x
thermal drivers. From: Srinivas Pandruvada.
- Reorganize the ACPI LPAT table support code so that it can be
shared for both ACPI PMIC driver and int340x thermal driver.
- Add support for Braswell in intel_soc_dts thermal driver.
- a couple of small fixes/cleanups for step_wise governor and int340x
thermal driver"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
Thermal/int340x_thermal: remove unused uuids.
thermal: step_wise: spelling fixes
thermal: int340x: fix sparse warning
Thermal/int340x: LPAT conversion for temperature
ACPI / PMIC: Use common LPAT table handling functions
ACPI / LPAT: Common table processing functions
thermal: Intel SoC DTS: Add Braswell support
Thermal/int340x/int3402: Provide notification support
Thermal/int340x/processor_thermal: Add thermal zone support
Thermal/int340x/int3403: Use int340x thermal API
Thermal/int340x/int3402: Use int340x thermal API
Thermal/int340x: Add common thermal zone handler
this patch fixes following sparse warning:
processor_thermal_device.c:188:6: warning: symbol 'proc_thermal_remove' was not declared. Should it be static?
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Add registers, bit fields and compatible strings for Exynos7 TMU
(Thermal Management Unit). Following are a few of the differences
in the Exynos7 TMU from earlier SoCs:
- 8 trigger levels
- Different bit offsets and more registers for the rising
and falling thresholds.
- New power down detection bit in the TMU_CONTROL register
which does not update the CURRENT_TEMP0 when tmu power down
is detected.
- Change in bit offset for the NEXT_DATA field of EMUL_CON
register. EMUL_CON register address has also changed.
- INTSTAT and INTCLEAR registers present in earlier SoCs
have been combined into one INTPEND register. The register
address for INTCLEAR and INTPEND is also different.
- Since there are 8 rising/falling interrupts as against
at most 4 in earlier SoCs the INTEN bit offsets are different.
- Multiple probe support which is handled by a TMU_CONTROL1
register (No support for this in the current patch).
This patch adds special clock support required only for Exynos7. It
also updates the "code_to_temp" prototype as Exynos7 has 9 bit
code-temp mapping.
Acked-by: Lukasz Majewski <l.majewski@samsung.com>
Tested-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Added Intel Braswell CPU id for SOC DTS. Since this doesn't support
APIC IRQ, the driver is modified to have capability to not register
any modifiable trips.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Up till now, by mistake, wrong variable was tested against being NULL.
Since exynos_report_trigger() is always called with valid p pointer,
it is only necessary to check if a valid thermal zone device is passed.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Signed-off-by: Eduardo Valentin <edubezval@gmail.com>
Conflicts:
arch/arm/boot/dts/imx6sx-sdb.dts
net/sched/cls_bpf.c
Two simple sets of overlapping changes.
Signed-off-by: David S. Miller <davem@davemloft.net>
Eduardo Valentin
Fabian Frederick
Hans de Goede
Matthias Kaehlcke
Srinivas Pandruvada
Chanwoo Choi
Miguel Bernal Marin
Geert Uytterhoeven
Markus Elfring
Grygorii Strashko
Lukasz Majewski
Linus Torvalds
Zhang Rui
Brian Norris
Lad, Prabhakar
Abhilash Kesavan
David S. Miller