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Driver forgot to unregister power supply if request_threaded_irq()
failed in probe(). In such case the memory associated with power supply
leaked.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Fixes: a830d28b48bf ("power_supply: Enable battery-charger for 88pm860x")
Cc: <stable@vger.kernel.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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This driver is now arm specific anymore, so there is no need to include
an arm specific include file. Also drop unnecessary depencency on ARM
from Kconfig.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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The st-poweroff driver does not really power off the system
but resets it, so Kconfig should not claim that the driver
would handle power-off.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Register with kernel restart handler instead of setting arm_pm_restart
directly. Select high priority since the restart handler is instantiated
through devicetree, indicating that it should be used if configured.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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sun6i restart is now handled by its watchdog driver directly,
so this driver is no longer needed.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Register with kernel restart handler instead of setting arm_pm_restart
directly. Register with high priority since the driver unconditionally
overwrites other restart handlers if instantiated.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Register with kernel restart handler instead of setting arm_pm_restart
directly. Select high priority since the restart handler is instantiated
through devicetree, indicating that it should be used if configured.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Replace hard-coded numbers for indices of power supply array with enum.
This improves a little the readability as one does not have to guess
which power supply is associated with number.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Both the LTC2941 and LTC2943 measure battery capacity.
The LTC2943 is compatible with the LTC2941, it adds voltage and
temperature monitoring, and uses a slightly different conversion
formula for the charge counter.
To avoid confusion with e.g. the LTC2945, the driver is called
LTC2941 instead of LTC294X.
v2: Fix units of measurement: uV, uA and centidegrees.
v3: Correctly set configuration register. Allow negative values
for the sense resistor.
v4: Run checkpatch.pl and fix all errors and warnings.
v5: Prefix "lltc," to devicetree properties.
Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
[ removed .owner field ]
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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The register bit fields are a little different, so add an entry and a
compatible string to accommodate them.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Some of the older chips used different bits to arm and trigger the reset.
Add the infrastructure needed to specify this through the "compatible"
string.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Now that the driver doesn't use any ARM-specific headers, it is safe
to build on MIPS or with COMPILE_TEST.
Signed-off-by: Kevin Cernekee <cernekee@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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To guerantee proper charing and managing batteries even in suspend,
charger-manager has used rtc device with rtc framework interface.
However, it is better to use alarmtimer for cleaner and more appropriate
operation.
This patch makes driver to use alarmtimer for polling work in suspend and
removes all deprecated codes related with using rtc interface.
Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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at91_poweroff_get_wakeup_mode can return a negative error code and should
therefore not return an enum type. Similar, its result should not be
assigned to an enum type. Otherwise, the returned value is never negative,
resulting in a compiler warning and a missed error condition, which in turn
results in writing bad values into a chip register.
Also fix other compiler warnings which can be easily avoided.
drivers/power/reset/at91-poweroff.c:74:24:
warning: type qualifiers ignored on function return type
drivers/power/reset/at91-poweroff.c:74:24:
warning: no previous prototype for 'at91_poweroff_get_wakeup_mode'
drivers/power/reset/at91-poweroff.c:83:16:
warning: comparison between signed and unsigned integer expressions
drivers/power/reset/at91-poweroff.c:97:2:
warning: comparison of unsigned expression < 0 is always false
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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In current driver, power_supply_changed() is called whenever any of
the battery attribute changed. This causes kernel to increases the
'/sys/power/wakeup_count' and make suspend not working correctly.
This patch change this behavior to call power_supply_changed()
only when the battery capacity changed.
Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-by: David Riley <davidriley@chromium.org>
Reviewed-by: Benson Leung <bleung@chromium.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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- SOC is at 0x1C so we must add 0x4 as stated in the comment to read the
right value.
- DCAP is at 0x3c so we also must use a value with the right offset to get
the correct design capacity.
Actually testing on a bq27410 which has the same register map as bq27425
(but adds new registers).
Signed-off-by: Eric Bénard <eric@eukrea.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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This is only a small clean-up. The driver can be built without SYSFS
as there exist stubs for used functions.
Signed-off-by: Karol Wrona <k.wrona@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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This patch fixes following build warning:
In file included from include/linux/printk.h:261:0,
from include/linux/kernel.h:13,
from include/linux/list.h:8,
from include/linux/module.h:9,
from drivers/power/bq24190_charger.c:11:
drivers/power/bq24190_charger.c: In function ‘bq24190_irq_handler_thread’:
include/linux/dynamic_debug.h:86:20: warning: ‘ss_reg’ may be used uninitialized in this function [-Wmaybe-uninitialized]
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^
drivers/power/bq24190_charger.c:1211:5: note: ‘ss_reg’ was declared here
u8 ss_reg, f_reg;
^
In file included from include/linux/printk.h:261:0,
from include/linux/kernel.h:13,
from include/linux/list.h:8,
from include/linux/module.h:9,
from drivers/power/bq24190_charger.c:11:
include/linux/dynamic_debug.h:86:20: warning: ‘f_reg’ may be used uninitialized in this function [-Wmaybe-uninitialized]
__dynamic_dev_dbg(&descriptor, dev, fmt, \
^
drivers/power/bq24190_charger.c:1211:13: note: ‘f_reg’ was declared here
u8 ss_reg, f_reg;
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Add a reset driver for Renesas R-Mobile and SH-Mobile SoCs. It registers
a restart handler to trigger a soft power-on reset through the R-Mobile
System Controller.
The priority of this restart handler is 192, to allow a watchdog driver
to use priority 128.
Note that we do not use syscon-reboot, as the HPB (Peripheral Bus
Bridge) semaphore should be acquired on systems where both the ARM and
SH core are in use. The driver can be extended later to support this,
when needed.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Remove the function ab8500_fg_reinit() that is not used anywhere.
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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drivers/power/max77693_charger.c:747:3-8: No need to set .owner here. The core will do it.
Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
CC: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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drivers/power/max77693_charger.c:615:1-4: WARNING: end returns can be simpified
Simplify a trivial if-return sequence. Possibly combine with a
preceding function call.
Generated by: scripts/coccinelle/misc/simple_return.cocci
CC: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Now, as all VE platforms have to be booted with DT,
the code handling non-DT case can be removed.
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Add new driver for Maxim 77693 switch-mode charger (part of max77693
MFD driver) providing power supply class information to userspace.
The charger has +20V tolerant input. Current input can be set from 0 to
2.58 A. The charger can deliver up to 2.1 A to the battery or 3.5 A to
the system (when supplying additional current from battery to system).
The driver is configured through DTS (battery and system related
settings) and sysfs entries (timers and top-off charging threshold).
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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The regmap_config struct may be const because it is not modified by the
driver and regmap_init() accepts pointer to const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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The driver mismatched 'num_supplicants' with 'num_supplies' of
power_supply structure.
It provided list of supplicants (power_supply.supplied_to) but did
not set the number of supplicants. Instead it set the num_supplies which
is used when iterating over number of supplies (power_supply.supplied_from).
As a result the list of supplicants was ignored by core because its size
was 0.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Cc: <stable@vger.kernel.org>
Fixes: d7bf353fd0aa ("bq24190_charger: Add support for TI BQ24190 Battery Charger")
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Teach collie_battery driver to communicate to the kernel that it can
generate wakeup events. Handle enabling/disabling wakeup on battery full
event in suspend/resume callbacks.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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enable_irq_wakeup returns 0 in case it correctly enabled the IRQ to
generate the wakeup event (and thus resume should call disable_irq_wake).
Currently gpio-charger driver has this logic inverted. Correct that thus
correcting enable/disable_irq_wake() calls balance.
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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This patch adds device driver of Richtek PMIC.
The driver support battery fuel gauge. Fuel gauge calculates and determines the
battery state of charge (SOC) according to battery open circuit voltage (OCV).
Also, this driver provides battery average voltage, voltage and battery present
property.
Cc: Sebastian Reichel <sre@kernel.org>
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Currently the ltc2952 supports only one button sequence to initiate
powerdown. This is not always desirable, as even prolonged button
presses can happen in use.
Allow ltc2952 users to pick their own power down sequence, by making the
trigger input optional. Since this still means that the ltc2952 may
power down the platform if the power button is pressed for about 5
seconds, we still need to make sure to start the watchdog toggle to
prolong the system power for as long as we need it.
This will still allow the system to control power using the kill signal.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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In ltc2952_poweroff_handler it is theoretically possible that the timer
fails to start on first pass (button press), but succeeds in starting on
the second (button release). This will cause the button press to be
misinterpreted, and will incorrectly shut down the system. Because a
picture says more than a thousand words:
Expected behavior:
tmr: ++++++++++
btn: -----__________-----
Faulty behavior:
tmr: +++++
btn: -----__________-----
Legend:
+ timer runs
_ button pressed
- button depressed
To prevent this from happening, check the value of the gpio before
starting the timer. If the button is active, we should start the timer,
else we should stop it.
The situation described can now still occur if the polarity of the input
pin is set incorrectly, but that at least is predictable behavior and
can be detected during the first tests.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Disable the timers when ltc2952_poweroff is removed. We don't want to
risk calling functions on data that no longer exist.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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The function pointers for the timers and pm_power_off are assigned with
C++ style
foo = &func;
Let's change it instead to the more C style
foo = func;
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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ltc2952_poweroff_handler uses gotos to return from the function. Since
we don't do cleanups exiting this function, just return IRQ_HANDLED on
the spot and be done with it.
While at it, remove the variable 'ret'. It was never used very much.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Documentation/SubmittingDrivers suggests these be implemented even when
they do nothing. On the other hand, the platform code calls these
functions 'legacy'. Suspend and resume operations should go into a
pm_ops structure, pointed at by the driver's pm field. This approach
would lead to a lot of boiler plate, while achieving nothing. Drop the
functions instead.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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As per Documentation/CodingStyle ch.4, we should keep global variables
to a mininum. Move the panic state into the driver data, regardless of
whether panic is a system state or not.
This removes the need for the custom _init and _exit functions, so
replace them with a call to the module_platform_driver() macro.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Documentation/CodingStyle ch.4 mentions in a side node that global
variables should only be used if you really need them. Reduce the use of
the global instance of ltc2952_poweroff so we may eventually remove it
entirely.
While at it, rename ltc2952_poweroff_data to ltc2952_poweroff, just to
save that little bit of typing.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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This reduces cleanup code and chance of errors.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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The three gpio's used by this driver are stored in an array of pointers.
This doesn't add much besides cleanups in a loop. In fact, it makes most
of the usage sites harder to read. Unroll the loop, and live with the
fact that cleanups become slightly larger.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Make use of the fact that we allocated resources can be automatically
deallocated. This reduces cleanup code and chance of errors. It also
removes the need for the virq member of the ltc2952_poweroff_data
struct.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Make use of the fact that the allocated resources can be automatically
deallocated. This reduces cleanup code and chance of leaks.
Signed-off-by: Frans Klaver <frans.klaver@xsens.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Augment the Versatile reset driver to also handle the core
module reset sequence used on the Integrator/AP and
Integrator/CP.
Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Pull more ACPI and power management updates from Rafael Wysocki:
"These are regression fixes (leds-gpio, ACPI backlight driver,
operating performance points library, ACPI device enumeration
messages, cpupower tool), other bug fixes (ACPI EC driver, ACPI device
PM), some cleanups in the operating performance points (OPP)
framework, continuation of CONFIG_PM_RUNTIME elimination, a couple of
minor intel_pstate driver changes, a new MAINTAINERS entry for it and
an ACPI fan driver change needed for better support of thermal
management in user space.
Specifics:
- Fix a regression in leds-gpio introduced by a recent commit that
inadvertently changed the name of one of the properties used by the
driver (Fabio Estevam).
- Fix a regression in the ACPI backlight driver introduced by a
recent fix that missed one special case that had to be taken into
account (Aaron Lu).
- Drop the level of some new kernel messages from the ACPI core
introduced by a recent commit to KERN_DEBUG which they should have
used from the start and drop some other unuseful KERN_ERR messages
printed by ACPI (Rafael J Wysocki).
- Revert an incorrect commit modifying the cpupower tool (Prarit
Bhargava).
- Fix two regressions introduced by recent commits in the OPP library
and clean up some existing minor issues in that code (Viresh
Kumar).
- Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout the
tree (or drop it where that can be done) in order to make it
possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki, Ulf
Hansson, Ludovic Desroches).
There will be one more "CONFIG_PM_RUNTIME removal" batch after this
one, because some new uses of it have been introduced during the
current merge window, but that should be sufficient to finally get
rid of it.
- Make the ACPI EC driver more robust against race conditions related
to GPE handler installation failures (Lv Zheng).
- Prevent the ACPI device PM core code from attempting to disable
GPEs that it has not enabled which confuses ACPICA and makes it
report errors unnecessarily (Rafael J Wysocki).
- Add a "force" command line switch to the intel_pstate driver to
make it possible to override the blacklisting of some systems in
that driver if needed (Ethan Zhao).
- Improve intel_pstate code documentation and add a MAINTAINERS entry
for it (Kristen Carlson Accardi).
- Make the ACPI fan driver create cooling device interfaces witn
names that reflect the IDs of the ACPI device objects they are
associated with, except for "generic" ACPI fans (PNP ID "PNP0C0B").
That's necessary for user space thermal management tools to be able
to connect the fans with the parts of the system they are supposed
to be cooling properly. From Srinivas Pandruvada"
* tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
MAINTAINERS: add entry for intel_pstate
ACPI / video: update the skip case for acpi_video_device_in_dod()
power / PM: Eliminate CONFIG_PM_RUNTIME
NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
ACPI / EC: Fix unexpected ec_remove_handlers() invocations
Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c
PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro
PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
ACPI / PM: Do not disable wakeup GPEs that have not been enabled
ACPI / utils: Drop error messages from acpi_evaluate_reference()
...
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Pull power supply updates from Sebastian Reichel::
"Power supply and reset changes for the v3.19 series
- update power/reset drivers to use kernel restart handler
- add power off driver for i.mx6
- add DT support for gpio-charger"
* tag 'for-v3.19' of git://git.infradead.org/battery-2.6:
power: reset: adjust priority of simple syscon reboot driver
power: ds2782_battery: Simplify the PM hooks
power/reset: brcmstb: Register with kernel restart handler
power/reset: hisi: Register with kernel restart handler
power/reset: keystone: Register with kernel restart handler
power/reset: axxia: Register with kernel restart handler
power/reset: xgene: Register with kernel restart handler
power/reset: xgene: Use mdelay instead of jiffies based timeout
power/reset: xgene: Use local variable dev instead of pdev->dev
power/reset: xgene: Drop devm_kfree
power/reset: xgene: Return -ENOMEM if out of memory
power/reset: vexpress: Register with kernel restart handler
power: reset: imx-snvs-poweroff: add power off driver for i.mx6
power: gpio-charger: add device tree support
dt-bindings: document gpio-charger bindings
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After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks
depending on CONFIG_PM_RUNTIME within #ifdef blocks depending on
CONFIG_PM may be dropped now.
Do that in drivers/power/pm2301_charger.c.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
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Pull ARM SoC platform changes from Arnd Bergmann:
"New and updated SoC support, notable changes include:
- bcm:
brcmstb SMP support
initial iproc/cygnus support
- exynos:
Exynos4415 SoC support
PMU and suspend support for Exynos5420
PMU support for Exynos3250
pm related maintenance
- imx:
new LS1021A SoC support
vybrid 610 global timer support
- integrator:
convert to using multiplatform configuration
- mediatek:
earlyprintk support for mt8127/mt8135
- meson:
meson8 soc and l2 cache controller support
- mvebu:
Armada 38x CPU hotplug support
drop support for prerelease Armada 375 Z1 stepping
extended suspend support, now works on Armada 370/XP
- omap:
hwmod related maintenance
prcm cleanup
- pxa:
initial pxa27x DT handling
- rockchip:
SMP support for rk3288
add cpu frequency scaling support
- shmobile:
r8a7740 power domain support
various small restart, timer, pci apmu changes
- sunxi:
Allwinner A80 (sun9i) earlyprintk support
- ux500:
power domain support
Overall, a significant chunk of changes, coming mostly from the usual
suspects: omap, shmobile, samsung and mvebu, all of which already
contain a lot of platform specific code in arch/arm"
* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (187 commits)
ARM: mvebu: use the cpufreq-dt platform_data for independent clocks
soc: integrator: Add terminating entry for integrator_cm_match
ARM: mvebu: add SDRAM controller description for Armada XP
ARM: mvebu: adjust mbus controller description on Armada 370/XP
ARM: mvebu: add suspend/resume DT information for Armada XP GP
ARM: mvebu: synchronize secondary CPU clocks on resume
ARM: mvebu: make sure MMU is disabled in armada_370_xp_cpu_resume
ARM: mvebu: Armada XP GP specific suspend/resume code
ARM: mvebu: reserve the first 10 KB of each memory bank for suspend/resume
ARM: mvebu: implement suspend/resume support for Armada XP
clk: mvebu: add suspend/resume for gatable clocks
bus: mvebu-mbus: provide a mechanism to save SDRAM window configuration
bus: mvebu-mbus: suspend/resume support
clocksource: time-armada-370-xp: add suspend/resume support
irqchip: armada-370-xp: Add suspend/resume support
ARM: add lolevel debug support for asm9260
ARM: add mach-asm9260
ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf
power: reset: imx-snvs-poweroff: add power off driver for i.mx6
ARM: imx: temporarily remove CONFIG_SOC_FSL from LS1021A
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Pull ARM SoC cleanup on mach-at91 from Arnd Bergmann:
"On Atmel AT91, the conversion to device tree is now considered
complete, and all machines that were not already converted in 3.18 are
assumed to be unused and dropped by the maintainer.
All remaining board files that were written in C are dropped, and the
ancient at91x40 sub-platform (based on an MMU-less ARM7) is removed
altogether. Cleaning up the last pieces was great fun, so I took the
time to do some of the coding myself and removed several hundred code
lines that ended up unused after the board files were done.
There are still a couple of AT91 specific device drivers that are not
converted to DT (CF, USB-OTG) and currently not working, and the
platform itself is not "multiplatform"-enabled, but both issues are
going to be taken care of in the 3.20 cycle.
This is split out from the other cleanups purely based on the size of
the branch"
* tag 'at91-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (33 commits)
ARM: at91: remove unused board.h file
ARM: at91: remove unneeded header files
ARM: at91/clocksource: remove !DT PIT initializations
ARM: at91: at91rm9200 ST initialization is now DT only
ARM: at91: remove old AT91-specific drivers
ARM: at91: cleanup initilisation code by removing dead code
ARM: at91/Kconfig: select board files automatically
ARM: at91: remove unused IRQ function declarations
ARM: at91: remove legacy IRQ driver and related code
ARM: at91: remove old at91-specific clock driver
ARM: at91: remove clock data in at91sam9n12.c and at91sam9x5.c files
ARM: at91: remove all !DT related configuration options
ARM: at91/trivial: update Kconfig comment to mention SAMA5
ARM: at91: always USE_OF from now on
ARM: at91/Kconfig: remove ARCH_AT91RM9200 option for drivers
ARM: at91: switch configuration option to SOC_AT91RM9200
ARM: at91: remove at91rm9200 legacy board support
ARM: at91: remove at91rm9200 legacy boards files
ARM: at91/Kconfig: remove useless fbdev Kconfig options
ARM: at91: remove at91sam9261/at91sam9g10 legacy board support
...
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Currently, all restart handler use the priority 128, including
watchdogs. Probably most SoC have a watchdog, and some of them
register it also as a restart handler. But if a SoC specifies
a dedicated reboot capability using this syscon driver, this is
usually the preferred reboot method. Hence, raise the priority
of this driver to 192.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
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This driver register pm_power_off with snvs power off function. If
your boards NOT use PMIC_ON_REQ to turn on/off external pmic, or use
other pin to do, please disable the driver in dts, otherwise, your
pm_power_off maybe overwrote by this driver.
Signed-off-by: Robin Gong <b38343@freescale.com>
Acked-By: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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Krzysztof Kozlowski
Guenter Roeck
Mike Looijmans
Kevin Cernekee
Jonghwa Lee
Puthikorn Voravootivat
Eric Bénard
Karol Wrona
Lad, Prabhakar
Geert Uytterhoeven
Rickard Strandqvist
kbuild test robot
Pawel Moll
Dmitry Eremin-Solenikov
Beomho Seo
Frans Klaver
Linus Walleij
Linus Torvalds
Rafael J. Wysocki
Stefan Agner
Robin Gong