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The driver was reporting POWER_SUPPLY_PROP_STATUS via platform data
functions. Without platform data, the max17040_get_status() functions
returns early with POWER_SUPPLY_STATUS_UNKNOWN. Since there are no
platforms using the driver with platform data (no board files with the
driver), the status property was always unknown.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The fuel gauge in the RT5033 PMIC has its own I2C bus and interrupt
line. Therefore, it is not actually part of the RT5033 MFD and needs
its own of_match_table to probe properly.
Also, given that it's independent of the MFD, there is actually
no need to make the Kconfig depend on MFD_RT5033. Although the driver
uses the shared <linux/mfd/rt5033.h> header, there is no compile
or runtime dependency on the RT5033 MFD driver.
Cc: Beomho Seo <beomho.seo@samsung.com>
Cc: Chanwoo Choi <cw00.choi@samsung.com>
Fixes: b847dd96e659 ("power: rt5033_battery: Add RT5033 Fuel gauge device driver")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The only known BD70528 use-cases are such that the PMIC is controlled
from separate MCU which is not running Linux. I am not aware of
any Linux driver users. Furthermore, it seems there is no demand for
this IC. Let's ease the maintenance burden and drop the driver. We can
always add it back if there is sudden need for it.
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Interrupt line can be configured on different hardware in different way,
even inverted. Therefore driver should not enforce specific trigger
type - edge falling - but instead rely on Devicetree to configure it.
The Maxim 14577/77836 datasheets describe the interrupt line as active
low with a requirement of acknowledge from the CPU therefore the edge
falling is not correct.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Acked-by: Iskren Chernev <iskren.chernev@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Interrupt line can be configured on different hardware in different way,
even inverted. Therefore driver should not enforce specific trigger
type - edge falling - but instead rely on Devicetree to configure it.
The Maxim 17047/77693 datasheets describe the interrupt line as active
low with a requirement of acknowledge from the CPU therefore the edge
falling is not correct.
The interrupt line is shared between PMIC and RTC driver, so using level
sensitive interrupt is here especially important to avoid races. With
an edge configuration in case if first PMIC signals interrupt followed
shortly after by the RTC, the interrupt might not be yet cleared/acked
thus the second one would not be noticed.
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The ac->state field is __le32, not u32. So change the variable we're
temporarily storing it in to __le32 as well.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: e61ffb344591 ("power: supply: Add AC driver for Surface Aggregator Module")
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Currently sbs-battery supports three string properties -
manufacturer, model_name, and chemistry. Buffers for those
properties are currently defined as global variables.
This patch moves those global variables into struct sbs_info
and cache/reuse them as they are all constant values.
Signed-off-by: Ikjoon Jang <ikjn@chromium.org>
Tested-by: Hsin-Yi Wang <hsinyi@chromium.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Adds properties for setting the maximum current to USB, ADP and Battery
supplies. USB and ADP limits are reset to OTP values upon replugging.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The RC5T619 can detect SDP, CDP and DCP chargers, so let's add support
for it.
Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This driver is including the legacy GPIO header <linux/gpio.h>
but not using any symbols from it. Delete the include.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Dmitry Osipenko <digetx@gmail.com>
Acked-by: David Heidelberg <david@ixit.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The PM2301 was only used in tandem with AB9540, part of U9540,
a platform that was cancelled and never deployed in products.
Delete it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The result of container_of() operations is never NULL unless the element
is the first element of the embedded structure, which is not the case here.
The NULL check is therefore unnecessary and misleading. Remove it.
This change was made automatically with the following Coccinelle script.
@@
type t;
identifier v;
statement s;
@@
<+...
(
t v = container_of(...);
|
v = container_of(...);
)
...
when != v
- if (\( !v \| v == NULL \) ) s
...+>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This setting is read directly from the device tree in
the ab8500_charger.c code.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The vendor code tree supplies platform data to enable he
USB charging for AB8500 and AB8500 and disable the AC
charging on the AB8505. This was missed when the driver
was submitted to the mainline kernel.
Fix this by doing what the vendor kernel does: always
register the USB charger, do not register the AC charger
on the AB8505.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Sometimes the code will crash because we haven't enabled
AC or USB charging and thus not created the corresponding
psy device. Fix it by checking that it is there before
notifying.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The code was calling ab8500_bm_of_probe() in four different
spots effectively overwriting the same configuration three
times. This was done because probe order was uncertain.
Since we now used componentized probe, call it only once
while probing the main charging component.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The driver has problems with the different components of
the charging code racing with each other to probe().
This results in all four subdrivers populating battery
information to ascertain that it is populated for their
own needs for example.
Fix this by using component probing and thus expressing
to the kernel that these are dependent components.
The probes can happen in any order and will only acquire
resources such as state container, regulators and
interrupts and initialize the data structures, but no
execution happens until the .bind() callback is called.
The charging driver is the main component and binds
first, then bind in order the three subcomponents:
ab8500-fg, ab8500-btemp and ab8500-chargalg.
Do some housekeeping while we are moving the code around.
Like use devm_* for IRQs so as to cut down on some
boilerplate.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The battery subsystem of the Surface Aggregator Module EC requires us to
register the battery notifier with instance ID 0. However, battery
events are actually sent with the instance ID corresponding to the
device, which is nonzero. Thus, the strict-matching approach doesn't
work here and will discard events that the driver is expected to handle.
To fix this we have to fall back on notifier matching by target-category
only and have to manually check the instance ID in the notifier
callback.
Fixes: 167f77f7d0b3 ("power: supply: Add battery driver for Surface Aggregator Module")
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
battery/charger driver changes:
* core: provide function stubs if CONFIG_POWER_SUPPLY=n
* core: reduce loglevel for probe defer info
* surface-battery: new battery driver for Surface
* surface-charger: new charger driver for Surface
* bq27xxx: add bq78z100 support
* bq27xxx: fix current_now/power_avg for newer chips
* cw2015: add CHARGE_NOW support
* ab8500: drop pdata support
* convert most DT bindings to YAML
* lot's of minor fixes and cleanups
reset drivers:
* ltc2952-poweroff: make trigger delay configurable from DT
* minor fixes and cleanups
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Merge tag 'for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply
Pull power supply and reset updates from Sebastian Reichel:
"battery/charger driver changes:
- core:
- provide function stubs if CONFIG_POWER_SUPPLY=n
- reduce loglevel for probe defer info
- surface:
- new battery and charger drivers for Surface
- bq27xxx:
- add bq78z100 support
- fix current_now/power_avg for newer chips
- cw2015:
- add CHARGE_NOW support
- ab8500:
- drop pdata support
- convert most DT bindings to YAML
- lots of minor fixes and cleanups
reset drivers:
- ltc2952-poweroff:
- make trigger delay configurable from DT
- minor fixes and cleanups"
* tag 'for-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (97 commits)
power: supply: cpcap-battery: fix invalid usage of list cursor
power: supply: bq256xx: add kerneldoc for structure members
power: supply: act8945a: correct kerneldoc
power: supply: max17040: remove unneeded double cast
power: supply: max17040: handle device_property_read_u8_array() failure
power: supply: max14577: remove unneeded variable initialization
power: supply: surface-charger: Make symbol 'surface_ac_pm_ops' static
power: supply: surface-battery: Make some symbols static
power: reset: restart-poweroff: Add missing MODULE_DEVICE_TABLE
power: reset: hisi-reboot: add missing MODULE_DEVICE_TABLE
power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove()
power: supply: generic-adc-battery: fix possible use-after-free in gab_remove()
power: supply: Add AC driver for Surface Aggregator Module
power: supply: Add battery driver for Surface Aggregator Module
power: supply: bq25980: Move props from battery node
power: supply: core: Use true and false for bool variable
power: supply: goldfish: Remove the GOLDFISH dependency
power: reset: ltc2952: make trigger delay configurable
power: supply: cpcap-charger: Simplify bool conversion
power: supply: cpcap-charger: Add usleep to cpcap charger to avoid usb plug bounce
...
Fix invalid usage of a list_for_each_entry in cpcap_battery_irq_thread().
Empty list or fully traversed list points to list head, which is not
NULL (and before the first element containing real data).
Signed-off-by: Guangqing Zhu <zhuguangqing83@gmail.com>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Carl Philipp Klemm <philipp@uvos.xyz>
Tested-by: Carl Philipp Klemm <philipp@uvos.xyz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Document members of structure to fix W=1 warnings like:
drivers/power/supply/bq256xx_charger.c:240: warning:
Function parameter or member 'charger' not described in 'bq256xx_device'
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Remove incorrect kerneldoc marker to fix W=1 warning:
drivers/power/supply/act8945a_charger.c:22: warning:
This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
There is no need for double explicit cast from of_device_get_match_data()
(uintptr_t and then to target enum) because implicit conversion from
uintptr_t to enum is straightforward (uintptr_t is a integer type).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The device_property_read_u8_array() call should not fail because it is
preceded with device_property_count_u8() and check for number of
readable u8 values. However the code is more obvious and easier to read
if the return value of device_property_read_u8_array() is checked.
Otherwise reader needs to investigate whether really there is no risk of
using random stack values of 'rcomp' variable.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The local 'current_bits' variable does not have to be initialized
because all cases in following switch() either return or initialize it.
Addresses-Coverity: Unused value
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The sparse tool complains as follows:
drivers/power/supply/surface_charger.c:229:1: warning:
symbol 'surface_ac_pm_ops' was not declared. Should it be static?
This symbol is not used outside of surface_charger.c, so this
commit marks it static.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qiheng Lin <linqiheng@huawei.com>
Acked-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The sparse tool complains as follows:
drivers/power/supply/surface_battery.c:700:1: warning:
symbol 'dev_attr_alarm' was not declared. Should it be static?
drivers/power/supply/surface_battery.c:805:1: warning:
symbol 'surface_battery_pm_ops' was not declared. Should it be static?
This symbol is not used outside of surface_battery.c, so this
commit marks it static.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Qiheng Lin <linqiheng@huawei.com>
Acked-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.
Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This driver's remove path calls cancel_delayed_work(). However, that
function does not wait until the work function finishes. This means
that the callback function may still be running after the driver's
remove function has finished, which would result in a use-after-free.
Fix by calling cancel_delayed_work_sync(), which ensures that
the work is properly cancelled, no longer running, and unable
to re-schedule itself.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
On newer Microsoft Surface models (specifically 7th-generation, i.e.
Surface Pro 7, Surface Book 3, Surface Laptop 3, and Surface Laptop Go),
battery and AC status/information is no longer handled via standard ACPI
devices, but instead directly via the Surface System Aggregator Module
(SSAM), i.e. the embedded controller on those devices.
While on previous generation models, AC status is also handled via SSAM,
an ACPI shim was present to translate the standard ACPI AC interface to
SSAM requests. The SSAM interface itself, which is modeled closely after
the ACPI interface, has not changed.
This commit introduces a new SSAM client device driver to support AC
status/information via the aforementioned interface on said Surface
models.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
On newer Microsoft Surface models (specifically 7th-generation, i.e.
Surface Pro 7, Surface Book 3, Surface Laptop 3, and Surface Laptop Go),
battery and AC status/information is no longer handled via standard ACPI
devices, but instead directly via the Surface System Aggregator Module
(SSAM), i.e. the embedded controller on those devices.
While on previous generation models, battery status is also handled via
SSAM, an ACPI shim was present to translate the standard ACPI battery
interface to SSAM requests. The SSAM interface itself, which is modeled
closely after the ACPI interface, has not changed.
This commit introduces a new SSAM client device driver to support
battery status/information via the aforementioned interface on said
Surface models. It is in parts based on the standard ACPI battery
driver.
Signed-off-by: Maximilian Luz <luzmaximilian@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Currently POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT and
POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE are exposed on
the battery node and this is incorrect.
This patch exposes both of them on the charger node rather
than the battery node.
Fixes: 5069185fc18e ("power: supply: bq25980: Add support for the BQ259xx family")
Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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Merge tag 'ib-mfd-power-v5.13' into psy-next
Immutable branch between MFD and Power due for the v5.13 merge window.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This will allow to use the BATTERY_GOLDFISH driver
without enabling GOLDFISH.
Signed-off-by: Roman Kiryanov <rkir@google.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Fix the following coccicheck warning:
./drivers/power/supply/cpcap-charger.c:416:31-36: WARNING: conversion to
bool not needed here
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Adds 80000 us sleep when the usb cable is plugged in to hopefully avoid
bouncing contacts.
Upon pluging in the usb cable vbus will bounce for some time, causing cpcap to
dissconnect charging due to detecting an undervoltage condition. This is a
scope of vbus on xt894 while quickly inserting the usb cable with firm force,
probed at the far side of the usb socket and vbus loaded with approx 1k:
http://uvos.xyz/maserati/usbplug.jpg.
As can clearly be seen, vbus is all over the place for the first 15 ms or so
with a small blip at ~40 ms this causes the cpcap to trip up and disable
charging again.
The delay helps cpcap_usb_detect avoid the worst of this. It is, however, still
not ideal as strong vibrations can cause the issue to reapear any time during
charging. I have however not been able to cause the device to stop charging due
to this in practice as it is hard to vibrate the device such that the vbus pins
start bouncing again but cpcap_usb_detect is not called again due to a detected
disconnect/reconnect event.
Signed-off-by: Carl Philipp Klemm <philipp@uvos.xyz>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Carl Philipp Klemm <philipp@uvos.xyz>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Avoid logging probe defer information for default loglevel
configurations. This is only required for debugging probe
defer issues, which requires enabling debug messages for
other subsystems.
This dev_info() message predates having deferred devices
information available in /sys/kernel/debug/devices_deferred,
which is generally more useful.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
sbs-manager implements a GPIO chip, so include the proper
gpio driver include instead of the legacy gpio.h.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Introduce usage of dev_err_probe in probe routine, which
makes the code slightly more readable and removes some
lines of code. It also removes PROBE_DEFER errors being
logged by default.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Introduce usage of dev_err_probe in probe routine, which
makes the code slightly more readable and removes some
lines of code. It also removes PROBE_DEFER errors being
logged by default.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Introduce usage of dev_err_probe in probe routine, which
makes the code slightly more readable and removes some
lines of code. It also removes PROBE_DEFER errors being
logged by default, which are common when the battery is
waiting for the charger driver to be registered.
This also cleans up a useless goto and instead returns
directly.
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Change 'long long int' to 'long long' because the int is unnecessary,
as suggested by checkpatch.pl.
Signed-off-by: Milan Djurovic <mdjurovic@zohomail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Get regulator from parent device's node and extcon by name.
Signed-off-by: Timon Baetz <timon.baetz@protonmail.com>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
The commit 6d0c5de2fd84
("power: supply: Clean-up few drivers by using managed work init")
Re-introduced wrong order of initializing work-queue and requesting
the IRQs which was originally fixed by the commit b5e8642ed95f
("power: supply: axp20x_usb_power: Init work before enabling IRQs")
In addition this caused the work queue to be initialized twice.
Fix it again.
Fixes: 6d0c5de2fd84 ("power: supply: Clean-up few drivers by using managed work init")
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Reported-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/a774ca25010b7c932c07f22ce8a548466705c023.1616574973.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
