Commit Graph

2540 Commits

Author SHA1 Message Date
Linus Torvalds
c6e8c51f69 power supply and reset changes for the v5.14 series
battery/charger driver changes:
  * convert charger-manager binding to YAML
  * drop bd70528-charger driver
  * drop pm2301-charger driver
  * introduce rt5033-battery driver
  * misc. improvements and fixes
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Merge tag 'for-v5.14' 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:

   - convert charger-manager binding to YAML

   - drop bd70528-charger driver

   - drop pm2301-charger driver

   - introduce rt5033-battery driver

   - misc improvements and fixes"

* tag 'for-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (42 commits)
  power: supply: ab8500: Fix an old bug
  power: supply: axp288_fuel_gauge: remove redundant continue statement
  power: supply: axp288_fuel_gauge: Make "T3 MRD" no_battery_list DMI entry more generic
  power: supply: axp288_fuel_gauge: Rename fuel_gauge_blacklist to no_battery_list
  power: supply: bq24190_charger: drop of_match_ptr() from device ID table
  drivers: power: add missing MODULE_DEVICE_TABLE in keystone-reset.c
  power: supply: ab8500: add missing MODULE_DEVICE_TABLE
  power: supply: charger-manager: add missing MODULE_DEVICE_TABLE
  power: reset: regulator-poweroff: add missing MODULE_DEVICE_TABLE
  power: supply: cpcap-charger: get the battery inserted infomation from cpcap-battery
  power: supply: cpcap-battery: invalidate config when incompatible measurements are read
  power: supply: axp20x_battery: allow disabling battery charging
  power: supply: max17040: drop unused platform data support
  power: supply: max17040: simplify POWER_SUPPLY_PROP_ONLINE
  power: supply: max17040: remove non-working POWER_SUPPLY_PROP_STATUS
  power: reset: at91-sama5d2_shdwc: Remove redundant error printing in at91_shdwc_probe()
  power: reset: gpio-poweroff: add missing MODULE_DEVICE_TABLE
  power: supply: rt5033_battery: Fix device tree enumeration
  dt-bindings: power: supply: Add DT schema for richtek,rt5033-battery
  power: supply: Drop BD70528 support
  ...
2021-07-07 13:17:48 -07:00
Andy Shevchenko
f39650de68 kernel.h: split out panic and oops helpers
kernel.h is being used as a dump for all kinds of stuff for a long time.
Here is the attempt to start cleaning it up by splitting out panic and
oops helpers.

There are several purposes of doing this:
- dropping dependency in bug.h
- dropping a loop by moving out panic_notifier.h
- unload kernel.h from something which has its own domain

At the same time convert users tree-wide to use new headers, although for
the time being include new header back to kernel.h to avoid twisted
indirected includes for existing users.

[akpm@linux-foundation.org: thread_info.h needs limits.h]
[andriy.shevchenko@linux.intel.com: ia64 fix]
  Link: https://lkml.kernel.org/r/20210520130557.55277-1-andriy.shevchenko@linux.intel.com

Link: https://lkml.kernel.org/r/20210511074137.33666-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Co-developed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Wei Liu <wei.liu@kernel.org>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-07-01 11:06:04 -07:00
Linus Walleij
f1c74a6c07 power: supply: ab8500: Fix an old bug
Trying to get the AB8500 charging driver working I ran into a bit
of bitrot: we haven't used the driver for a while so errors in
refactorings won't be noticed.

This one is pretty self evident: use argument to the macro or we
end up with a random pointer to something else.

Cc: stable@vger.kernel.org
Cc: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Marcus Cooper <codekipper@gmail.com>
Fixes: 297d716f62 ("power_supply: Change ownership from driver to core")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-30 00:14:55 +02:00
Colin Ian King
f390e4bd79 power: supply: axp288_fuel_gauge: remove redundant continue statement
The continue statement at the end of a for-loop has no effect,
invert the if expression and remove the continue.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-30 00:10:26 +02:00
Hans de Goede
3a06b912a5 power: supply: axp288_fuel_gauge: Make "T3 MRD" no_battery_list DMI entry more generic
It turns out that the "T3 MRD" DMI_BOARD_NAME value is used in a lot of
different Cherry Trail x5-z8300 / x5-z8350 based Mini-PC / HDMI-stick
models from Ace PC / Meegopad / MinisForum / Wintel (and likely also
other vendors).

Most of the other DMI strings on these boxes unfortunately contain various
generic values like "Default string" or "$(DEFAULT_STRING)", so we cannot
match on them. These devices do have their chassis-type correctly set to a
value of "3" (desktop) which is a pleasant surprise, so also match on that.

This should avoid the quirk accidentally also getting applied to laptops /
tablets (which do actually have a battery). Although in my quite large
database of Bay and Cherry Trail based devices DMIdecode dumps I don't
have any laptops / tables with a board-name of "T3 MRD", so this should
not be an issue.

BugLink: https://askubuntu.com/questions/1206714/how-can-a-mini-pc-be-stopped-from-being-detected-as-a-laptop-with-a-battery/
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-30 00:08:52 +02:00
Hans de Goede
0973e96b4b power: supply: axp288_fuel_gauge: Rename fuel_gauge_blacklist to no_battery_list
As documented in the updated "Naming" chapter of
Documentation/process/coding-style.rst, usage of the work blacklist
should be avoided where possible.

Rename the list of devices which have no battery to the
axp288_no_battery_list, which also more accurately describes the
contents of the list.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-30 00:08:52 +02:00
Andy Shevchenko
df6f3f7eb7 power: supply: bq24190_charger: drop of_match_ptr() from device ID table
The driver can match only via the DT table so the table should be always
used and the of_match_ptr() does not have any sense (this also allows ACPI
matching via PRP0001, even though it might be not relevant here). This
fixes compile warning (!CONFIG_OF):

  drivers/power/supply/bq24190_charger.c:1972:34: warning: ‘bq24190_of_match’ defined but not used [-Wunused-const-variable=]

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-30 00:07:34 +02:00
Yu Jiahua
30e677a2ba drivers: power: add missing MODULE_DEVICE_TABLE in keystone-reset.c
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.

Signed-off-by: Yu Jiahua <yujiahua1@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-30 00:06:37 +02:00
Zou Wei
dfe52db13a power: supply: ab8500: add missing MODULE_DEVICE_TABLE
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>
2021-06-30 00:00:01 +02:00
Zou Wei
073b5d5b1f power: supply: charger-manager: add missing MODULE_DEVICE_TABLE
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>
2021-06-29 23:57:10 +02:00
Zou Wei
4465b3a621 power: reset: regulator-poweroff: add missing MODULE_DEVICE_TABLE
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>
2021-06-29 23:55:12 +02:00
Sebastian Reichel
2fc6d0ec54 Merge branch 'psy-fixes' into psy-next 2021-06-29 22:38:37 +02:00
Carl Philipp Klemm
eab4e6d953 power: supply: cpcap-charger: get the battery inserted infomation from cpcap-battery
This avoids reimplementing the detection logic twice and removes the
possibility of activating charging with 500mA even if a battery is not
detected.

Signed-off-by: Carl Philipp Klemm <philipp@uvos.xyz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-04 14:36:17 +02:00
Carl Philipp Klemm
aecd127b45 power: supply: cpcap-battery: invalidate config when incompatible measurements are read
This invalidates empty->counter_uah and charge_full when charge_now
indicates that they are grossly wrong and adds some tolerance to
POWER_SUPPLY_PROP_CHARGE_FULL to allow for inaccuracies in the charge
counter and manufacturing tolerances in the battery.

Signed-off-by: Carl Philipp Klemm <philipp@uvos.xyz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-04 14:28:31 +02:00
Hermann Lauer
6a0fcc87c9 power: supply: axp20x_battery: allow disabling battery charging
Allow disabling and re-enabling battery charging of an axp209 PMIC
through a writable status property. With the current driver code
charging is always on.

This works on the axp209 of Banana {Pi M1+,Pro} and should work on all
AXP chips.

Signed-off-by: Hermann.Lauer@uni-heidelberg.de
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-04 14:12:42 +02:00
Krzysztof Kozlowski
cd70c85c57 power: supply: max17040: drop unused platform data support
There are no platforms using the driver with platform data (no board
files with the driver), so the dead code can be dropped.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-04 13:11:37 +02:00
Krzysztof Kozlowski
ce0ae8324e power: supply: max17040: simplify POWER_SUPPLY_PROP_ONLINE
The driver was reporting POWER_SUPPLY_PROP_ONLINE via platform data
functions or '1' if no platform data was provided.  Since there are no
platforms using the driver with platform data (no board files with the
driver), the online property can be simplified to always return '1'.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-04 13:11:37 +02:00
Krzysztof Kozlowski
c603bec359 power: supply: max17040: remove non-working POWER_SUPPLY_PROP_STATUS
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>
2021-06-04 13:11:37 +02:00
Zhen Lei
8ef9f687ab power: reset: at91-sama5d2_shdwc: Remove redundant error printing in at91_shdwc_probe()
When devm_ioremap_resource() fails, a clear enough error message will be
printed by its subfunction __devm_ioremap_resource(). The error
information contains the device name, failure cause, and possibly resource
information.

Therefore, remove the error printing here to simplify code and reduce the
binary size.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-04 13:04:01 +02:00
Bixuan Cui
ed3443fb4d power: reset: gpio-poweroff: add missing MODULE_DEVICE_TABLE
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: Bixuan Cui <cuibixuan@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-04 12:58:30 +02:00
Stephan Gerhold
f3076cd8d1 power: supply: rt5033_battery: Fix device tree enumeration
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: b847dd96e6 ("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>
2021-06-04 12:30:50 +02:00
Matti Vaittinen
4b53bdd53a power: supply: Drop BD70528 support
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>
2021-06-04 12:02:12 +02:00
Krzysztof Kozlowski
8bb2314fc2 power: supply: max17040: Do not enforce (incorrect) interrupt trigger type
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>
2021-06-04 11:58:22 +02:00
Krzysztof Kozlowski
7fbf6b731b power: supply: max17042: Do not enforce (incorrect) interrupt trigger type
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>
2021-06-04 11:58:22 +02:00
Maximilian Luz
601423bc0c power: supply: surface-charger: Fix type of integer variable
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: e61ffb3445 ("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>
2021-06-03 20:53:54 +02:00
Ikjoon Jang
b49a81d0fd power: supply: sbs-battery: cache constant string properties
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>
2021-06-03 19:49:58 +02:00
Andreas Kemnade
20a3c8b57b power: supply: rn5t618: Add input current limit
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>
2021-06-03 19:31:23 +02:00
Andreas Kemnade
7d76367774 power: supply: rn5t618: Add charger type detection
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>
2021-06-03 19:31:23 +02:00
Linus Walleij
3ee236296a power: supply: smb347-charger: Drop unused include
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>
2021-06-03 19:01:44 +02:00
Linus Walleij
aa8c8bf64b power: supply: pm2301_charger: Delete driver
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>
2021-06-03 19:01:40 +02:00
Guenter Roeck
e2bfc28afa power: supply: ab8500: Drop unnecessary NULL check after container_of
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>
2021-06-03 18:50:45 +02:00
Linus Walleij
9c2b682610 power: supply: ab8500: Drop unused member
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>
2021-06-03 18:40:15 +02:00
Linus Walleij
f9184a228d power: supply: ab8500: Enable USB and AC
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>
2021-06-03 18:40:15 +02:00
Linus Walleij
5bcb5087c9 power: supply: ab8500: Avoid NULL pointers
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>
2021-06-03 18:40:15 +02:00
Linus Walleij
7e2bb83c61 power: supply: ab8500: Call battery population once
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>
2021-06-03 18:40:15 +02:00
Linus Walleij
1c1f13a006 power: supply: ab8500: Move to componentized binding
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>
2021-06-03 18:40:15 +02:00
Jian Xin
94233f11f8 power: supply: ab8500: Fix typo
fix misspelled 'interrupts'

Signed-off-by: Jian Xin <xinjian@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-06-03 18:40:10 +02:00
Maximilian Luz
e633f33d26 power: supply: surface_battery: Fix battery event handling
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: 167f77f7d0 ("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>
2021-05-13 18:26:07 +02:00
Zou Wei
2aac79d14d power: supply: sc2731_charger: Add missing MODULE_DEVICE_TABLE
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>
2021-05-13 18:24:22 +02:00
Zou Wei
603fcfb9d4 power: supply: sc27xx: Add missing MODULE_DEVICE_TABLE
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>
2021-05-13 18:24:22 +02:00
Linus Torvalds
5a69e9bce9 power supply and reset changes for the v5.13 series
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
  ...
2021-04-28 15:43:58 -07:00
Guangqing Zhu
d0a43c12ee power: supply: cpcap-battery: fix invalid usage of list cursor
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>
2021-04-21 23:06:14 +02:00
Krzysztof Kozlowski
43d8766372 power: supply: bq256xx: add kerneldoc for structure members
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>
2021-04-20 16:18:08 +02:00
Krzysztof Kozlowski
4667d52fad power: supply: act8945a: correct kerneldoc
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>
2021-04-20 16:18:08 +02:00
Krzysztof Kozlowski
6dfbb2cece power: supply: max17040: remove unneeded double cast
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>
2021-04-20 16:18:08 +02:00
Krzysztof Kozlowski
a837f35c5a power: supply: max17040: handle device_property_read_u8_array() failure
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>
2021-04-20 16:18:08 +02:00
Krzysztof Kozlowski
01dcfe7849 power: supply: max14577: remove unneeded variable initialization
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>
2021-04-20 16:18:08 +02:00
Qiheng Lin
a4d5ed3b54 power: supply: surface-charger: Make symbol 'surface_ac_pm_ops' static
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>
2021-04-12 21:20:25 +02:00
Qiheng Lin
5ea2edd67a power: supply: surface-battery: Make some symbols static
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>
2021-04-12 21:19:42 +02:00
Bixuan Cui
e318c3c2ae power: reset: restart-poweroff: Add missing MODULE_DEVICE_TABLE
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: Bixuan Cui <cuibixuan@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-04-12 21:18:52 +02:00
Chen Lifu
2d54a2222c power: reset: hisi-reboot: add missing MODULE_DEVICE_TABLE
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: Chen Lifu <chenlifu@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-04-09 13:50:01 +02:00
Yang Yingliang
68ae256945 power: supply: s3c_adc_battery: fix possible use-after-free in s3c_adc_bat_remove()
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>
2021-04-08 14:36:08 +02:00
Yang Yingliang
b6cfa007b3 power: supply: generic-adc-battery: fix possible use-after-free in gab_remove()
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>
2021-04-08 14:35:19 +02:00
Maximilian Luz
e61ffb3445 power: supply: Add AC driver for Surface Aggregator Module
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>
2021-04-08 14:30:35 +02:00
Maximilian Luz
167f77f7d0 power: supply: Add battery driver for Surface Aggregator Module
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>
2021-04-08 14:30:28 +02:00
Ricardo Rivera-Matos
04722cec14 power: supply: bq25980: Move props from battery node
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: 5069185fc1 ("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>
2021-04-05 17:51:21 +02:00
Sebastian Reichel
2509555070 Immutable branch between MFD and Power due for the v5.13 merge window
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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>
2021-04-05 12:38:08 +02:00
Roman Kiryanov
570b7c0ea2 power: supply: goldfish: Remove the GOLDFISH dependency
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>
2021-04-05 12:10:11 +02:00
Marek Czerski
52473b0740 power: reset: ltc2952: make trigger delay configurable
Make trigger delay configurable through device tree with
trigger-delay-ms property.

Trigger delay is the time to wait before starting shutdown
sequence after trigger line assertion.
Trigger delay must take into account the OFFT time configured
with the capacitor connected to OFFT pin of the LTC2952 chip.
Basically, the higher the capacitance connected to OFFT pin,
the larger trigger delay must be.

Signed-off-by: Marek Czerski <ma.czerski@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-04-05 12:05:51 +02:00
Yang Li
816aacd541 power: supply: cpcap-charger: Simplify bool conversion
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>
2021-04-05 11:37:06 +02:00
Carl Philipp Klemm
751faedf06 power: supply: cpcap-charger: Add usleep to cpcap charger to avoid usb plug bounce
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>
2021-04-05 10:22:18 +02:00
Carl Philipp Klemm
8a5a0cc13a power: supply: cpcap-charger: fix small mistake in current to register conversion
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>
2021-04-05 10:21:12 +02:00
Sebastian Reichel
3af26e2ad5 power: supply: core: reduce loglevel for probe defer info
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>
2021-04-02 14:19:26 +02:00
Sebastian Reichel
17948f5899 power: supply: sbs-manager: update gpio include
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>
2021-04-02 14:19:26 +02:00
Sebastian Reichel
436ff8c928 power: supply: sbs-manager: use dev_err_probe
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>
2021-04-02 14:19:25 +02:00
Sebastian Reichel
814ddbd9ec power: supply: sbs-manager: use managed i2c_mux_adapter
Simplify code by using devm_add_action_or_reset to unregister
the i2c_mux_adapter.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-04-02 14:19:25 +02:00
Sebastian Reichel
310162f6dd power: supply: sbs-charger: drop unused gpio includes
sbs-charger does not use any GPIOs, so no need to include
gpio.h and of_gpio.h.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-04-02 14:19:25 +02:00
Sebastian Reichel
e319f4e25a power: supply: sbs-charger: use dev_err_probe
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>
2021-04-02 14:19:25 +02:00
Sebastian Reichel
166767ab91 power: supply: sbs-battery: use dev_err_probe
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>
2021-04-02 14:19:25 +02:00
Milan Djurovic
33ae8b0346 power: supply: 88pm860x_battery: Remove unnecessary int for long long
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>
2021-04-02 14:14:58 +02:00
Timon Baetz
416682f27a power: supply: max8997_charger: Switch to new binding
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>
2021-04-02 14:12:52 +02:00
Hao Fang
9f45275a34 power: reset: hisi-reboot: use the correct HiSilicon copyright
s/Hisilicon/HiSilicon/g.
It should use capital S, according to
https://www.hisilicon.com/en/terms-of-use.

Signed-off-by: Hao Fang <fanghao11@huawei.com>
Acked-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-04-02 13:58:34 +02:00
Claudiu Beznea
bd3127733f power: reset: at91-reset: use devm_of_iomap
Use devm_of_iomap() to map resources. This will avoid the necessity to
track the mapped resources and free them on failure path or on remove.

Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Suggested-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-04-02 13:11:45 +02:00
Matti Vaittinen
ecdc996baf power: supply: axp20x_usb_power: fix work-queue init
The commit 6d0c5de2fd
("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 b5e8642ed9
("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: 6d0c5de2fd ("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>
2021-03-26 15:45:33 +01:00
Daniel Golle
3aeaf50938 power: reset: replace curly brackets in Makefile
Normal parentheses should be used when referring to config variables
in Makefile. Replace the accidentally introduced curly brackets by
regular parentheses.

Fixes: a7f79f9954 ("power: reset: add driver for LinkStation power off")
Acked-by: Daniel González Cabanelas <dgcbueu@gmail.com>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-23 16:25:56 +01:00
Matti Vaittinen
6d0c5de2fd power: supply: Clean-up few drivers by using managed work init
Few drivers implement remove call-back only for ensuring a delayed
work gets cancelled prior driver removal. Clean-up these by switching
to use devm_delayed_work_autocancel() instead.

This change is compile-tested only. All testing is appreciated.

Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>
Link: https://lore.kernel.org/r/e5b1b0380cdd1aa066c9ac6d7a8b1a86ba1ddbbe.1616506559.git.matti.vaittinen@fi.rohmeurope.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-03-23 15:22:40 +01:00
Bhaskar Chowdhury
37ad56aa82 power: supply: max17042: Trivial spelling fixes
Few trivial spelling fixes.

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-23 14:27:11 +01:00
Linus Walleij
ee0975c308 mfd/power: ab8500: Push data to power supply code
There is a slew of defines, structs and enums and even a
function call only relevant for the charging code that
still lives in <linux/mfd/abx500.h>. Push it down to the
"ab8500-bm.h" header in the power supply subsystem where
it is actually used.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-03-22 14:56:02 +00:00
Linus Walleij
a65aa0ce23 mfd/power: ab8500: Push algorithm to power supply code
The charging algorithm header is only used locally in the
power supply subsystem so push this down into
drivers/power/supply and rename from the confusing
"ux500_chargalg.h" to "ab8500-chargalg.h" for clarity:
it is only used with the AB8500.

This is another remnant of non-DT code needing to pass
data from boardfiles, which we don't do anymore.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-03-22 14:55:51 +00:00
Linus Walleij
417c0fc24d mfd/power: ab8500: Push data to power supply code
The global definition of platform data for the battery
management code has no utility after the OF conversion,
move the <linux/mfd/abx500/ab8500-bm.h> to be a local
file in drivers/power/supply and stop defining the
platform data in drivers/power/supply/ab8500_bmdata.c
and broadcast to the kernel only to have it assigned
as platform data to the MFD cells and then picked back
into the same subsystem that defined it in the first
place. This kills off a layer of indirection.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-03-22 14:55:38 +00:00
Linus Walleij
53207aa1a7 power: ab8500: Require device tree
The core AB8500 driver and the whole platform is completely
dependent on being probed from device tree so remove the
non-DT probe paths.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
2021-03-22 14:55:06 +00:00
Xiaofeng Cao
bd3689a64e power: supply: max1721x: Correct spelling
Change  'stanalone'      to  'standalone'
Change  'mesaurement'    to  'measurement'
Change  'nonvilatile'    to  'nonvolatile'
Change  'unical'         to  'unique'
Change  'unaccesable'    to  'unaccessible'
Change  'correcpondent'  to  'correspond'

Signed-off-by: Xiaofeng Cao <caoxiaofeng@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-22 15:11:22 +01:00
dongjian
c77b26e327 power: supply: ds2781: use kobj_to_dev()
Use kobj_to_dev() instead of open-coding it

Signed-off-by: dongjian <dongjian@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-22 15:05:41 +01:00
Bhaskar Chowdhury
31ba6fadc3 power: supply: charger-manager: Fix a typo
s/systme/system/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-22 14:59:48 +01:00
dongjian
091d0a3a48 power: reset: remove unneeded semicolon
Fixes coccicheck warning:
drivers/power/reset/vexpress-poweroff.c:136:2-3: Unneeded semicolon

Signed-off-by: dongjian <dongjian@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-22 14:55:50 +01:00
dongjian
2469b836fa power: supply: Use IRQF_ONESHOT
Fixes coccicheck error:

drivers/power/supply/pm2301_charger.c:1089:7-27: ERROR:
drivers/power/supply/lp8788-charger.c:502:8-28: ERROR:
drivers/power/supply/tps65217_charger.c:239:8-33: ERROR:
drivers/power/supply/tps65090-charger.c:303:8-33: ERROR:

Threaded IRQ with no primary handler requested without IRQF_ONESHOT

Signed-off-by: dongjian <dongjian@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-22 14:54:24 +01:00
LI Qingwu
4eed7f5a83 power: supply: bq27xxx: Add support for BQ78Z100
Add support for TI BQ78Z100, I2C interface gas gauge.
It provides a fully integrated safety protection
and authentication for 1 to 2-series cell Li-Ion and
Li-Polymer battery packs.

The patch was tested with BQ78Z100 equipment.

CASE I:  Discharging:
	POWER_SUPPLY_NAME=bq78z100-0
	POWER_SUPPLY_STATUS=Discharging
	POWER_SUPPLY_PRESENT=1
	POWER_SUPPLY_VOLTAGE_NOW=3386000
	POWER_SUPPLY_CURRENT_NOW=-5000
	POWER_SUPPLY_CAPACITY=27
	POWER_SUPPLY_CAPACITY_LEVEL=Normal
	POWER_SUPPLY_TEMP=269
	POWER_SUPPLY_TIME_TO_EMPTY_NOW=1249920
	POWER_SUPPLY_TECHNOLOGY=Li-ion
	POWER_SUPPLY_CHARGE_FULL=6494000
	POWER_SUPPLY_CHARGE_NOW=1736000
	POWER_SUPPLY_CHARGE_FULL_DESIGN=6000000
	POWER_SUPPLY_CYCLE_COUNT=1
	POWER_SUPPLY_POWER_AVG=-20000
	POWER_SUPPLY_HEALTH=Good
	POWER_SUPPLY_MANUFACTURER=Texas Instruments

CASE II : No discharging current:
	POWER_SUPPLY_NAME=bq78z100-0
	POWER_SUPPLY_STATUS=Not charging
	POWER_SUPPLY_PRESENT=1
	POWER_SUPPLY_VOLTAGE_NOW=3386000
	POWER_SUPPLY_CURRENT_NOW=0
	POWER_SUPPLY_CAPACITY=27
	POWER_SUPPLY_CAPACITY_LEVEL=Normal
	POWER_SUPPLY_TEMP=270
	POWER_SUPPLY_TECHNOLOGY=Li-ion
	POWER_SUPPLY_CHARGE_FULL=6494000
	POWER_SUPPLY_CHARGE_NOW=1734000
	POWER_SUPPLY_CHARGE_FULL_DESIGN=6000000
	POWER_SUPPLY_CYCLE_COUNT=1
	POWER_SUPPLY_POWER_AVG=0
	POWER_SUPPLY_HEALTH=Good
	POWER_SUPPLY_MANUFACTURER=Texas Instruments

Signed-off-by: LI Qingwu <Qing-wu.Li@leica-geosystems.com.cn>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-21 21:29:26 +01:00
Matthias Schiffer
c3a6d6a1df power: supply: bq27xxx: make status more robust
There are multiple issues in bq27xxx_battery_status():

- On BQ28Q610 is was observed that the "full" flag may be set even while
  the battery is charging or discharging. With the current logic to make
  "full" override everything else, it look a very long time (>20min) for
  the status to change from "full" to "discharging" after unplugging the
  supply on a device with low power consumption
- The POWER_SUPPLY_STATUS_NOT_CHARGING check depends on
  power_supply_am_i_supplied(), which will not work when the supply
  doesn't exist as a separate device known to Linux

We can solve both issues by deriving the status from the current instead
of the flags field. The flags are now only used to distinguish "full"
from "not charging", and to determine the sign of the current on
BQ27XXX_O_ZERO devices.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-15 02:26:03 +01:00
Matthias Schiffer
c4d57c22ac power: supply: bq27xxx: fix power_avg for newer ICs
On all newer bq27xxx ICs, the AveragePower register contains a signed
value; in addition to handling the raw value as unsigned, the driver
code also didn't convert it to µW as expected.

At least for the BQ28Z610, the reference manual incorrectly states that
the value is in units of 1mW and not 10mW. I have no way of knowing
whether the manuals of other supported ICs contain the same error, or if
there are models that actually use 1mW. At least, the new code shouldn't
be *less* correct than the old version for any device.

power_avg is removed from the cache structure, se we don't have to
extend it to store both a signed value and an error code. Always getting
an up-to-date value may be desirable anyways, as it avoids inconsistent
current and power readings when switching between charging and
discharging.

Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-15 02:26:03 +01:00
Matthias Schiffer
b67fdcb709 power: supply: bq27xxx: fix sign of current_now for newer ICs
Commit cd060b4d08 ("power: supply: bq27xxx: fix polarity of current_now")
changed the sign of current_now for all bq27xxx variants, but on BQ28Z610
I'm now seeing negated values *with* that patch.

The GTA04/Openmoko device that was used for testing uses a BQ27000 or
BQ27010 IC, so I assume only the BQ27XXX_O_ZERO code path was incorrect.
Revert the behaviour for newer ICs.

Fixes: cd060b4d08 "power: supply: bq27xxx: fix polarity of current_now"
Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-15 02:26:03 +01:00
Dinghao Liu
17e499a7d6 power: supply: axp20x_usb_power: Add missing check in axp20x_usb_power_probe
There are two regmap_update_bits() calls but only one of them has
return value check, which is odd. Add a return value check and
terminate the execution flow on failure just like the other call.

Signed-off-by: Dinghao Liu <dinghao.liu@zju.edu.cn>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-15 01:07:54 +01:00
Linus Walleij
3282634105 power: supply: z2_battery: Drop unused variable
The kernel test robot reports an unused variable in the
Z2 battery code caused by a recent commit.

Fixes: a3b4388ea1 ("power: supply: z2_battery: Convert to GPIO descriptors")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-15 00:08:07 +01:00
Dmitry Osipenko
2552e38dc8 power: supply: smb347-charger: Clean up whitespaces in the code
Improve formatting of the code by removing unnecessary whitespaces.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-06 18:39:06 +01:00
Dmitry Osipenko
d33b3f7e34 power: supply: smb347-charger: Improve interrupt initialization
A previous commit attempted to fix IRQ usage in a case where interrupt
is failed to initialize, but it missed couple more cases that could be
improved. The interrupt could be undefined and then everything related
to interrupt shouldn't be touched by driver. Secondly, we shouldn't ignore
errors that aren't directly related to enabling interrupt in hardware,
like enabling h/w write-access or requesting interrupt. Improve interrupt
initialization in the driver in order to handle the missing cases.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-06 18:39:05 +01:00
Krzysztof Kozlowski
c8bbab8f2d power: supply: s3c_adc_battery: remove unused pdata in suspend/resume
The "pdata" local variable is not used in suspend/resume handlers since
commit 7776bcd241 ("power: supply: s3c-adc-battery: Convert to GPIO
descriptors"):

    drivers/power/supply/s3c_adc_battery.c: In function ‘s3c_adc_bat_suspend’:
    drivers/power/supply/s3c_adc_battery.c:405:28: warning: unused variable ‘pdata’ [-Wunused-variable]

    drivers/power/supply/s3c_adc_battery.c: In function ‘s3c_adc_bat_resume’:
    drivers/power/supply/s3c_adc_battery.c:422:28: warning: unused variable ‘pdata’ [-Wunused-variable]

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-06 18:39:05 +01:00
Krzysztof Kozlowski
d6ce6e8108 power: supply: s3c_adc_battery: add SPDX license identifier
Add SPDX license identifier and replace license boilerplate.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-06 18:39:05 +01:00
Martin Ashby
bf3841073b power: supply: cw2015: Add CHARGE_NOW support
CHARGE_NOW is expected by some user software (such as waybar)
instead of 'CAPACITY', in order to correctly calculate remaining battery
life.

Signed-off-by: Martin Ashby <martin@ashbysoft.com>
Reviewed-by: Tobias Schramm <t.schramm@manjaro.org>
Tested-by: Tobias Schramm <t.schramm@manjaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-06 18:39:05 +01:00
Jiapeng Chong
c018b5322a power: supply: max8997-charger: remove unneeded semicolon
Fix the following coccicheck warnings:

./drivers/power/supply/max8997_charger.c:266:3-4: Unneeded semicolon.

Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-03-06 18:39:05 +01:00
Jian Dong
a72acc56f3 power-supply: use kobj_to_dev()
Use kobj_to_dev() instead of open-coding it

Signed-off-by: Jian Dong <dongjian@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-28 01:31:42 +01:00
Junlin Yang
2a0aa0fa39 power: supply: charger-manager: fix typo
Change 'exeeds' to 'exceeds'.

Signed-off-by: Junlin Yang <yangjunlin@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-25 01:01:29 +01:00
Arnd Bergmann
9483b961ad power/reset: remove zte zx driver
The zte zx platform is getting removed, so this driver is no
longer needed.

Cc: Jun Nie <jun.nie@linaro.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-25 01:00:06 +01:00
xinjian
79bcb02b20 power: supply: bq25980: Fix repetive bq25975 with bq25960
The i2c_device_id bq25975 is repeated, and should be bq25960.

Signed-off-by: xinjian <xinjian@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-25 00:58:17 +01:00
Dmitry Osipenko
6996312642 power: supply: smb347-charger: Fix interrupt usage if interrupt is unavailable
The IRQ=0 could be a valid interrupt number in kernel because interrupt
numbers are virtual in a modern kernel. Hence fix the interrupt usage in
a case if interrupt is unavailable by not overriding the interrupt number
which is used by the driver.

Note that currently Nexus 7 is the only know device which uses SMB347
kernel diver and it has a properly working interrupt, hence this patch
doesn't fix any real problems, it's a minor cleanup/improvement.

Fixes: 99298de5df ("power: supply: smb347-charger: Replace mutex with IRQ disable/enable")
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-25 00:51:13 +01:00
Samuel Holland
b5e8642ed9 power: supply: axp20x_usb_power: Init work before enabling IRQs
The IRQ handler calls mod_delayed_work() on power->vbus_detect. However,
that work item is not initialized until after the IRQs are enabled. If
an IRQ is already pending when the driver is probed, the driver calls
mod_delayed_work() on an uninitialized work item, which causes an oops.

Fixes: bcfb7ae3f5 ("power: supply: axp20x_usb_power: Only poll while offline")
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-25 00:25:26 +01:00
Randy Dunlap
a4bdea2004 power: supply: fix sbs-charger build, needs REGMAP_I2C
CHARGER_SBS should select REGMAP_I2C since it uses API(s) that are
provided by that Kconfig symbol.

Fixes these errors:

../drivers/power/supply/sbs-charger.c:149:21: error: variable ‘sbs_regmap’ has initializer but incomplete type
 static const struct regmap_config sbs_regmap = {
../drivers/power/supply/sbs-charger.c:150:3: error: ‘const struct regmap_config’ has no member named ‘reg_bits’
  .reg_bits = 8,
../drivers/power/supply/sbs-charger.c:155:23: error: ‘REGMAP_ENDIAN_LITTLE’ undeclared here (not in a function)
  .val_format_endian = REGMAP_ENDIAN_LITTLE, /* since based on SMBus */
../drivers/power/supply/sbs-charger.c: In function ‘sbs_probe’:
../drivers/power/supply/sbs-charger.c:183:17: error: implicit declaration of function ‘devm_regmap_init_i2c’; did you mean ‘devm_request_irq’? [-Werror=implicit-function-declaration]
  chip->regmap = devm_regmap_init_i2c(client, &sbs_regmap);
../drivers/power/supply/sbs-charger.c: At top level:
../drivers/power/supply/sbs-charger.c:149:35: error: storage size of ‘sbs_regmap’ isn’t known
 static const struct regmap_config sbs_regmap = {

Fixes: feb583e37f ("power: supply: add sbs-charger driver")
Reported-by: Martin Mokrejs <mmokrejs@fold.natur.cuni.cz>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Martin Mokrejs <mmokrejs@fold.natur.cuni.cz>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-17 19:11:20 +01:00
Andreas Kemnade
cd060b4d08 power: supply: bq27xxx: fix polarity of current_now
current_now has to be negative during discharging and positive during
charging, the behavior seen is the other way round.

Tested on GTA04 with Openmoko battery.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-16 15:44:58 +01:00
Junlin Yang
95b78d5370 power: supply: charger-manager: fix incorrect health status
cm->emergency_stop will only be the value in the enumeration,
and cannot be less than zero, it will get an exception value.
So replace it with the corresponding value.

Signed-off-by: Junlin Yang <yangjunlin@yulong.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-16 15:02:15 +01:00
Claudiu Beznea
b7e15bd0c1 power: reset: at91-sama5d2_shdwc: add support for sama7g5
Add support for SAMA7G5 by adding proper struct reg_config structure
and since SAMA7G5 is not currently on LPDDR setups the commit also
avoid the mapping of DDR controller.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-16 14:41:48 +01:00
Claudiu Beznea
95aa21a3f1 power: reset: at91-sama5d2_shdwc: fix wkupdbc mask
According to datasheet WKUPDBC mask is b/w bits 26..24.

Fixes: f80cb48843 ("power: reset: at91-shdwc: add new shutdown controller driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-16 14:41:48 +01:00
Zheng Yongjun
7088ef6726 power: supply: bq24190_charger: convert comma to semicolon
Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-16 12:38:57 +01:00
Zheng Yongjun
f005e63100 power: supply: ab8500_fg: convert comma to semicolon
Replace a comma between expression statements by a semicolon.

Signed-off-by: Zheng Yongjun <zhengyongjun3@huawei.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-16 12:38:22 +01:00
Tian Tao
f856b2f295 power: supply: ds2780: Switch to using the new API kobj_to_dev()
fixed the following coccicheck:
drivers/power/supply/ds2780_battery.c:627:60-61: WARNING opportunity for
kobj_to_dev()
drivers/power/supply/ds2780_battery.c:672:60-61: WARNING opportunity for
kobj_to_dev()
drivers/power/supply/ds2780_battery.c:640:60-61: WARNING opportunity for
kobj_to_dev()
drivers/power/supply/ds2780_battery.c:685:60-61: WARNING opportunity for
kobj_to_dev()

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-16 12:36:26 +01:00
Hermes Zhang
3ed510f06e power: supply: bq27xxx: Support CHARGE_NOW for bq27z561/bq28z610/bq34z100
Currently REG_NAC (nominal available capacity) is mapped to
power-supply's CHARGE_NOW property. Some chips do not have
REG_NAC and do not expose CHARGE_NOW at the moment. Some
bq27xxx chips also have another register REG_RM (remaining
capacity). The difference between REG_NAC and REG_RM is load
compensation.

This patch adds register information for REG_RM for all
supported fuel gauges. On systems having REG_NAC it is
ignored, so behaviour does not change. On systems without
REG_NAC, REG_RM will be used to provide CHARGE_NOW
functionality.

As a result there are three more chips exposing CHARGE_NOW:
bq27z561, bq28z610 and bq34z100

Signed-off-by: Hermes Zhang <chenhuiz@axis.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-16 11:32:28 +01:00
Colin Ian King
39196cfe10 power: supply: cpcap-charger: Fix power_supply_put on null battery pointer
Currently if the pointer battery is null there is a null pointer
dereference on the call to power_supply_put.  Fix this by only
performing the put if battery is not null.

Addresses-Coverity: ("Dereference after null check")
Fixes: 4bff91bb32 ("power: supply: cpcap-charger: Fix missing power_supply_put()")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-15 15:15:30 +01:00
Sebastian Reichel
51567ad125 power: supply: cpcap-battery: constify psy_desc
There is no dynamic information in cpcap-battery's
power-supply description struct, so let's make it
static const.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-15 13:26:46 +01:00
Pavel Machek
2844484958 power: supply: cpcap-battery: Fix typo
Fix typo

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
[tony@atomide.com: separated out from charger changes]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:43 +01:00
Arthur Demchenkov
0f596487ff power: supply: cpcap-battery: Add charge_now property
Add charge_now property for capacity reporting.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Arthur Demchenkov <spinal.by@gmail.com>
[tony@atomide.com: updated to apply for naming changes]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Arthur Demchenkov
1e64926c5d power: supply: cpcap-battery: Implement capacity reporting
Calculate percentage using charge_full value provided.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Arthur Demchenkov <spinal.by@gmail.com>
[tony@atomide.com: updated to apply after dropping my earlier patch]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Arthur Demchenkov
faf6e90081 power: supply: cpcap-battery: Keep track of state for capacity reporting
Save the battery empty and full states so we can use those to estimate
the battery capacity in the following patches.

If the user provides us with charge_full value (which it could save in a
permanent storage between reboots), initialize low and high counter_uah
with calculated values.

If we hit battery low once, we should stick on reporting it until the
charger is connected. This way low->counter_uah will be updated
properly, and that will allow us to get more accurate charge_full value.

Based on an earlier patch by Tony Lindgren with charge_full usage and
other improvments done by Arthur Demchenkov.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Co-developed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arthur Demchenkov <spinal.by@gmail.com>
[tony@atomide.com: combined earlier patches, updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Arthur Demchenkov
4fb0357c6d power: supply: cpcap-battery: Add charge_full property
Add charge_full property and let user update it. This is needed for
capacity reporting in the following patches.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Arthur Demchenkov <spinal.by@gmail.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Tony Lindgren
bb8b9a9850 power: supply: cpcap-battery: Use charger status for battery full detection
We now get battery full notification from cpcap-charger, so let's use that
for battery full status and charger disconnect.

Note that any current based battery full detection we have tried earlier is
flakey as it won't account for example for CPU load increasing the battery
current. Anyways, if current based battery full detection is also still
needed, we can reconsider adding it in addition to the charger status based
detection.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Tony Lindgren
2071236b85 power: supply: cpcap-charger: Provide state updates for battery from charger
We want to have the battery update it's status when the charge is done,
and when the charger is disconnected. Otherwise the battery does not know
when it's full unless there's a userspace app polling the battery status.

To do this, we add supplied_to handling to cpcap-battery, and implement
power_supply_changed() for cpcap-charger. When cpcap-charger calls
power_supply_changed(), cpcap-battery will update it's status.

Let's also use new_state variable for the POWER_SUPPLY_STATUS_CHARGING
case to have unified handling for the switch.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Tony Lindgren
6ddcec581f power: supply: cpcap-charger: Simplify things with enable and disable
Let's turn cpcap_charger_set_state() into separate cpcap_charger_enable()
and cpcap_charger_disable() to simplify things, and to allow managing
status separately. This can be then used for the follow-up patches to
make battery full status behave a bit nicer.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Tony Lindgren
5a21489207 power: supply: cpcap-charger: Drop internal state and use generic stats
We currently have both state and status, get rid of state and use
generic status instead.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Pavel Machek
c6fdea9664 power: supply: cpcap-charger: Limiting charge current on Droid 4
Droid 4 has same problem as N900: it is often necessary to manually
tweak current draw from USB, for example when using thin charging cable.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
[tony@atomide.com: rebased, cleaned up whitespace issues, updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Tony Lindgren
41ac23f5c9 power: supply: cpcap-charger: Use standard enumeration
Just get rid of the custom enumeration if favor of the standard one.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Tony Lindgren
e015964a28 power: supply: cpcap-charger: Make VBUS already provided debug only
This should be only shown when debug is enabled.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Tony Lindgren
2828ffc2a2 power: supply: cpcap-charger: Fix flakey reboot with charger connected
If we have a USB charger connected, reboot is flakey and often fails to
reboot the device with the charger LED staying on.

Let's fix this by implementing .shutdown.

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:42 +01:00
Tony Lindgren
97456a24ac power: supply: cpcap-battery: Fix missing power_supply_put()
Fix missing power_supply_put().

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Fixes: 8b0134cc14 ("power: supply: cpcap-battery: Fix handling of lowered charger voltage")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:37 +01:00
Tony Lindgren
4bff91bb32 power: supply: cpcap-charger: Fix missing power_supply_put()
Fix missing power_supply_put().

Cc: Arthur Demchenkov <spinal.by@gmail.com>
Cc: Carl Philipp Klemm <philipp@uvos.xyz>
Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Fixes: 5688ea0492 ("power: supply: cpcap-charger: Allow changing constant charge voltage")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:42:13 +01:00
Dmitry Osipenko
c82a2fbe6c power: supply: Add battery gauge driver for Acer Iconia Tab A500
This patch adds battery gauge driver for Acer Iconia Tab A500 device.
The battery gauge function is provided via the Embedded Controller,
which is found on the Acer A500.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:39:43 +01:00
Ricardo Rivera-Matos
c3f1813516 power: supply: bq256xx: Fix BQ256XX_NUM_WD_VAL and bq256xx_watchdog_time[] overrun
Corrects BQ256XX_NUM_WD_VAL from value of "8" to "4" and fixes the issue when 'i'
is equal to array size then array index over runs the array

Fixes: 32e4978bb9 ("power: supply: bq256xx: Introduce the BQ256XX charger driver")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-14 23:38:56 +01:00
Sebastian Reichel
b059b48500 Immutable branch between mach-pxa and power-supply for for 5.12
This immutable branch replaces legacy gpio API in wm97xx_battery and
 z2_battery with new gpiod API, which involves the drivers in
 power-supply and some mach-pxa board files.
 
 Signed-off-by: Sebastian Reichel <sre@kernel.org>
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Merge tag 'ib-psy-pxa-for-5.12-signed' into psy-next

Immutable branch between mach-pxa and power-supply for for 5.12

This immutable branch replaces legacy gpio API in wm97xx_battery and
z2_battery with new gpiod API, which involves the drivers in
power-supply and some mach-pxa board files.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-13 22:39:31 +01:00
Linus Walleij
cb6d6918c5 power: supply: wm97xx_battery: Convert to GPIO descriptor
This converts the WM97xx driver to use a GPIO descriptor
instead of passing a GPIO number thru platform data.

Like everything else in the driver, use a simple local
variable for the descriptor, it can only ever appear in
one instance anyway so it should not hurt.

After converting the driver I noticed that none of the
boardfiles actually define a meaningful GPIO line for
this, but hey, it is converted.

Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-13 22:25:07 +01:00
Linus Walleij
a3b4388ea1 power: supply: z2_battery: Convert to GPIO descriptors
This converts the Palm Z2 battery driver to use GPIO descriptors.

Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Robert Jarzmik <robert.jarzmik@free.fr>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-13 22:25:03 +01:00
Cristian Ciocaltea
3235d13050 power: reset: Add poweroff driver for ATC260x PMICs
This driver provides poweroff and reboot support for a system through
the ATC2603C and ATC2609A chip variants of the Actions Semi ATC260x
family of PMICs.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-13 22:17:23 +01:00
Rikard Falkeborn
2f7cf24f42 power: supply: core: Constify static struct attribute_group
The only usage of it is to put its address in an array of pointers to
const static structs. Make it const to allow the compiler to put it in
read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-13 22:11:44 +01:00
Rikard Falkeborn
249aacc6a3 power: supply: ltc4162-l: Constify static struct attribute_group
The only usage of it is to put its address in an array of pointers to
const static structs. Make it const to allow the compiler to put it in
read-only memory.

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-13 22:11:43 +01:00
Mike Looijmans
cd900f181a power/supply: Add ltc4162-l-charger
Add support for the LTC4162-L Li-Ion battery charger. The driver allows
reading back telemetry and to set some charging options like the input
current limit.

Signed-off-by: Mike Looijmans <mike.looijmans@topic.nl>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-13 00:46:34 +01:00
Linus Walleij
50da8d04ee power: supply: max8903: Convert to GPIO descriptors
The MAX8903 uses up to 5 different GPIO lines to control and
monitor charging.

When converting to use GPIO descriptors instead of the old
GPIO numbers the following side-refactorings were done:

- Decomission the platform data container struct as all
  GPIO descriptors are now "live" members of the driver
  state container. The "dc_valid" and "usb_valid" just
  indicate the presence of a DC or USB charger detection
  line, and this can be handled by just checking if
  the optional GPIO descriptor for each is != NULL.

- The gpiolib will now respect the GPIO_ACTIVE_LOW flag
  for each of the lines, meaning gpiod_get_value() for example
  will return 1 (asserted) if a line is flagged as
  active low and is also physically low. The same applies
  to output lines, vice versa mutatis mutandis. The code
  has been augmented to account for this in all sites.

- The terse parenthesis such as this:
    gpio_set_value(pdata->cen, ta_in ? 0 :
                     (data->usb_in ? 0 : 1));
  have been expanded to more readable if / else if / else
  statements that are easier for humans to read.

- Comments were inserted to underscore polarity in each
  case where it could be confusing to users of the old code.

One thing is notable: the device tree bindings does not show
an example of polarity assigned for the line "dcm-gpios"
DC current monitor, is assumed to be flagged GPIO_ACTIVE_HIGH
and driving it high (asserted) will achieve DC charger current
limits and driving it low will achieve USB charger current
limits. Device trees with this (optional) GPIO line defined
should definately be flagged as GPIO_ACTIVE_HIGH.

Cc: Chris Lapa <chris@lapa.com.au>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-12 23:23:49 +01:00
Linus Walleij
3188677d49 power: supply: max8903: Absorb pdata header
The platform data header is not included by any other file in
the kernel but the driver itself. Decomission the stand-alone
header and absorb it into the driver itself.

Cc: Chris Lapa <chris@lapa.com.au>
Cc: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-12 23:23:49 +01:00
Linus Walleij
ed3c19bdb0 power: supply: max14656: Drop unused includes
The driver includes two GPIO headers but does not use
symbols from any of them, so drop these includes.

Cc: Alexander Kurz <akurz@blala.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-12 23:09:45 +01:00
Menglong Dong
f1d33ae806 power: supply: remove duplicated argument in power_supply_hwmon_info
'HWMON_T_INPUT' and 'HWMON_T_MIN_ALARM' in power_supply_hwmon_info are
duplicated and can be removed.

Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-12 23:00:32 +01:00
Hans de Goede
6b714ea49b power: supply: axp288_fuel_gauge: Add Mele PCG03 to the deny-list
The Mele PCG03 is another mini PC using the AXP288 PMIC where the EFI
code does not disable the charger part of the PMIC causing us to report
a discharging battery with a random battery charge to userspace.

Add it to the deny-list to avoid the bogus battery status reporting.

Cc: Rasmus Porsager <rasmus@beat.dk>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-12 22:52:42 +01:00
Ricardo Rivera-Matos
32e4978bb9 power: supply: bq256xx: Introduce the BQ256XX charger driver
The BQ256XX family of devices are highly integrated buck chargers
for single cell batteries.

Signed-off-by: Ricardo Rivera-Matos <r-rivera-matos@ti.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-06 21:25:05 +01:00
Colin Ian King
4a22969be9 power: supply: max8997_charger: fix spelling mistake "diconnected" -> "disconnected"
There is a spelling mistake in a dev_dbg message. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-06 17:39:24 +01:00
Timon Baetz
f384989e88 power: supply: max8997_charger: Set CHARGER current limit
Register for extcon notification and set charging current depending on
the detected cable type. Current values are taken from vendor kernel,
where most charger types end up setting 650mA [0].

Also enable and disable the CHARGER regulator based on extcon events.

[0] https://github.com/krzk/linux-vendor-backup/blob/samsung/galaxy-s2-epic-4g-touch-sph-d710-exynos4210-dump/drivers/misc/max8997-muic.c#L1675-L1678

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>
2021-01-05 14:58:06 +01:00
Tony Lindgren
e62333e26b power: supply: cpcap: Add missing IRQF_ONESHOT to fix regression
Commit 25d76fed7f ("phy: cpcap-usb: Use IRQF_ONESHOT") started causing
errors loading phy-cpcap-usb driver:

cpcap_battery cpcap_battery.0: failed to register power supply
genirq: Flags mismatch irq 211. 00002080 (se0conn) vs. 00000080 (se0conn)
cpcap-usb-phy cpcap-usb-phy.0: could not get irq se0conn: -16

Let's fix this by adding the missing IRQF_ONESHOT to also cpcap-battery
and cpcap-charger drivers.

Fixes: 25d76fed7f ("phy: cpcap-usb: Use IRQF_ONESHOT")
Reported-by: Merlijn Wajer <merlijn@wizzup.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2021-01-02 23:57:44 +01:00
Tom Rix
1e625fe6fa power: supply: ingenic: remove unneeded semicolon
A semicolon is not needed after a switch statement.

Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2020-12-30 00:42:46 +01:00
Carl Philipp Klemm
34fb2a952b power: supply: cpcap-battery: improve handling of 3rd party batteries.
Adds a module option to ignore a missing temperature sensor.
Useful for 3rd party batteries.

Signed-off-by: Carl Philipp Klemm <carl@uvos.xyz>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
2020-12-30 00:40:22 +01:00