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2019-05-01Merge tag 'for-v5.1-rc' of ↵Linus Torvalds2-6/+3
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply fixes from Sebastian Reichel: "Two more fixes for the 5.1 cycle. One division by zero fix in a specific driver and one core workaround for bad userspace behaviour from systemd regarding uevents. IMHO this can be considered to be a userspace bug, but the debug messages are useless anyways - cpcap-battery: fix a division by zero - core: fix systemd issue due to log messages produced by uevent" * tag 'for-v5.1-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: power: supply: sysfs: prevent endless uevent loop with CONFIG_POWER_SUPPLY_DEBUG power: supply: cpcap-battery: Fix division by zero
2019-04-26power: supply: sysfs: prevent endless uevent loop with CONFIG_POWER_SUPPLY_DEBUGAndrey Smirnov1-6/+0
Fix a similar endless event loop as was done in commit 8dcf32175b4e ("i2c: prevent endless uevent loop with CONFIG_I2C_DEBUG_CORE"): The culprit is the dev_dbg printk in the i2c uevent handler. If this is activated (for instance by CONFIG_I2C_DEBUG_CORE) it results in an endless loop with systemd-journald. This happens if user-space scans the system log and reads the uevent file to get information about a newly created device, which seems fair use to me. Unfortunately reading the "uevent" file uses the same function that runs for creating the uevent for a new device, generating the next syslog entry Both CONFIG_I2C_DEBUG_CORE and CONFIG_POWER_SUPPLY_DEBUG were reported in https://bugs.freedesktop.org/show_bug.cgi?id=76886 but only former seems to have been fixed. Drop debug prints as it was done in I2C subsystem to resolve the issue. Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com> Cc: Chris Healy <cphealy@gmail.com> Cc: linux-pm@vger.kernel.org Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-04-15drivers: power: supply: goldfish_battery: Fix bogus SPDX identifierThomas Gleixner1-1/+1
spdxcheck.py complains: drivers/power/supply/goldfish_battery.c: 1:28 Invalid License ID: GPL which is correct because GPL is not a valid identifier. Of course this could have been caught by checkpatch.pl _before_ submitting or merging the patch. WARNING: 'SPDX-License-Identifier: GPL' is not supported in LICENSES/... #19: FILE: drivers/power/supply/goldfish_battery.c:1: +// SPDX-License-Identifier: GPL Which is absolutely hillarious as the commit introducing this wreckage says in the changelog: There was a checkpatch complain: "Missing or malformed SPDX-License-Identifier tag". Oh well. Replacing a checkpatch warning by a different checkpatch warning is a really useful exercise. Use the proper GPL-2.0 identifier which is what the boiler plate in the file had originally. Fixes: e75e3a125b40 ("drivers: power: supply: goldfish_battery: Put an SPDX tag") Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-10power: supply: cpcap-battery: Fix division by zeroTony Lindgren1-0/+3
If called fast enough so samples do not increment, we can get division by zero in kernel: __div0 cpcap_battery_cc_raw_div cpcap_battery_get_property power_supply_get_property.part.1 power_supply_get_property power_supply_show_property power_supply_uevent Fixes: 874b2adbed12 ("power: supply: cpcap-battery: Add a battery driver") Signed-off-by: Tony Lindgren <tony@atomide.com> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-02-20power: reset: at91-reset: add support for sam9x60 SoCNicolas Ferre1-0/+13
Add support for additional reset causes and the proper compatibility string for sam9x60 SoC. The restart function is the same as the samx7. Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-02-20max17042_battery: fix potential use-after-free on device removeSven Van Asbroeck1-0/+10
The work which is scheduled on a POR boot is potentially left pending or running until after the device module is removed, which could result in a use-after-free. Fix by registering a cancel/sync callback, which gets executed as part of standard resource unwinding. This issue was detected with the help of Coccinelle. Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-02-20power: supply: core: Add a field to support battery max voltageArtur Rojek1-0/+3
Add a field for "voltage_max_design_uv" to present fully charged battery voltage. Signed-off-by: Artur Rojek <contact@artur-rojek.eu> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-02-20bq27x00: use cached flagsArthur Demchenkov1-16/+4
The flags were just read by bq27xxx_battery_update(), no need to read them again. Signed-off-by: Arthur Demchenkov <spinal.by@gmail.com> Reviewed-by: Andrew F. Davis <afd@ti.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-02-12power: supply: ds2782: fix possible use-after-free on removeSven Van Asbroeck1-4/+4
In remove(), use cancel_delayed_work_sync() to cancel the delayed work. Otherwise there's a chance that this work will continue to run until after the device has been removed. While we're here, fix the deallocation order in remove(), to correspond to the inverse of the probe() allocation order. This guarantees that any remaining work can run to completion with all driver structures still intact. This issue was detected with the help of Coccinelle. Signed-off-by: Sven Van Asbroeck <TheSven73@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-23power: supply: bq25890: show max charge current/voltage as configuredMichał Mirosław1-2/+2
Use firmware-provided limits for POWER_SUPPLY_*_MAX properties instead of chip max values. This will reflect the battery limits as those are the important ones. Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-23power: supply: sc27xx: Fix capacity saving functionYuanjiang Yu1-5/+59
We found sometimes we can not get the saving capacity to initialize the battery capacity, the reason is the user area registers are put on power always-on region, so we need delay some time to wait until values are updated successfully. Moreover we also should clear the USER_AREA_CLEAR register after setting the USER_AREA_SET register, otherwise we can not save the values in the USER_AREA_SET register. Signed-off-by: Yuanjiang Yu <yuanjiang.yu@unisoc.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-23power: supply: sc27xx: Fix the incorrect formula when converting capacity to ↵Baolin Wang1-1/+1
coulomb counter We should multiply the calibrated current data (cur_1000ma_adc) when converting current capacity (mAh) to coulomb counter, which can get an accurate coulomb counter from the fuel gauge controller. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-23power: supply: sc27xx: Add one property to read charge voltageBaolin Wang1-0/+29
Add POWER_SUPPLY_PROP_CONSTANT_CHARGE_VOLTAGE property to get charge voltage sampling by ADC controller, which is used to validate if the charge voltage is in normal range or not in charger manager. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-21drivers: power: supply: goldfish_battery: Add support for reading more ↵Roman Kiryanov1-0/+47
properties To comply with tests we need to support more power supply properties: POWER_SUPPLY_PROP_VOLTAGE_NOW POWER_SUPPLY_PROP_TEMP POWER_SUPPLY_PROP_CHARGE_COUNTER POWER_SUPPLY_PROP_CURRENT_NOW POWER_SUPPLY_PROP_CURRENT_AVG POWER_SUPPLY_PROP_CHARGE_FULL POWER_SUPPLY_PROP_CYCLE_COUNT POWER_SUPPLY_PROP_VOLTAGE_MAX POWER_SUPPLY_PROP_CURRENT_MAX Signed-off-by: Roman Kiryanov <rkir@google.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20power: supply: charger-manager: Fix trivial language typosKrzysztof Kozlowski1-9/+9
Fix few trivial language typos. Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20cpcap-charger: generate events for userspacePavel Machek1-0/+1
The driver doesn't generate uevents on charger connect/disconnect. This leads to UPower not detecting when AC is on or off... and that is bad. Reported by Arthur D. on github ( https://github.com/maemo-leste/bugtracker/issues/206 ), thanks to Merlijn Wajer for suggesting a fix. Cc: stable@kernel.org Signed-off-by: Pavel Machek <pavel@ucw.cz> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20power: supply: remove some duplicated includesYangtao Li1-2/+0
We include of.h twice. It's unnecessary,so just remove them. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20power: twl4030: fix a missing check of return valueKangjie Lu1-1/+3
If twl4030_bci_read() fails, the read data in "s" is incorrect, which is however used in the following execution. The fix checks the return value of twl4030_bci_read() and returns an error code upstream upon the failure of twl4030_bci_read(). Signed-off-by: Kangjie Lu <kjlu@umn.edu> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20drivers: power: supply: goldfish_battery: Use tabs for alignmentRoman Kiryanov1-6/+6
Tabs are preferred. Signed-off-by: Roman Kiryanov <rkir@google.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20drivers: power: supply: goldfish_battery: Fix alignmentRoman Kiryanov1-2/+2
Align two values as other values below. Signed-off-by: Roman Kiryanov <rkir@google.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20drivers: power: supply: goldfish_battery: Retire a redundant variableRoman Kiryanov1-8/+0
The battery_data static variable was not used. Signed-off-by: Roman Kiryanov <rkir@google.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20drivers: power: supply: goldfish_battery: Fix "line over 80 characters"Roman Kiryanov1-2/+3
There was a line longer than 80 characters. Signed-off-by: Roman Kiryanov <rkir@google.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20drivers: power: supply: goldfish_battery: Put an SPDX tagRoman Kiryanov1-9/+1
There was a checkpatch complain: "Missing or malformed SPDX-License-Identifier tag". Signed-off-by: Roman Kiryanov <rkir@google.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20power: supply: axp288_fuel_gauge: Change to use DEFINE_SHOW_ATTRIBUTE macroYangtao Li1-12/+2
Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code. Signed-off-by: Yangtao Li <tiny.windzz@gmail.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2019-01-20power: supply: isp1704: switch to gpiod APISebastian Reichel1-48/+12
This migrates isp1704 driver from old GPIO API to new descriptor based GPIO API and drops useless platform data as a side-effect. Migration is simple, since all mainline users are DT based and DT API does not change. Out of tree users of the platform data need to migrate to gpiod_lookup_table as described here: Documentation/driver-api/gpio/board.rst Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Pavel Machek <pavel@ucw.cz> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-28Merge tag 'for-v4.21' of ↵Linus Torvalds24-418/+1677
git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply Pull power supply and reset updates from Sebastian Reichel: - New core support: - battery internal resistance - battery OCV capacity lookup table - support for custom sysfs attributes - Convert all drivers to use power-supply core support for custom sysfs attributes - bq24190-charger: bq24196 support - axp20x-charger: AXP813 support - sc27xx-battery: new fuel gauge driver - gpio-poweroff: support for specific active and inactive delays - Misc fixes * tag 'for-v4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply: (53 commits) power: supply: bq25890: fix BAT_COMP field definition power: supply: gpio-charger: Do not use deprecated POWER_SUPPLY_TYPE_USB_* power: supply: ds2781: switch to devm_power_supply_register power: supply: ds2780: switch to devm_power_supply_register power: supply: ds2781: fix race-condition in bin attribute registration power: supply: ds2780: fix race-condition in bin attribute registration power: supply: pcf50633: fix race-condition in sysfs registration power: supply: charger-manager: fix race-condition in sysfs registration power: supply: charger-manager: simplify generation of sysfs attribute group name power: supply: bq24257: fix race-condition in sysfs registration power: supply: bq24190_charger: fix race-condition in sysfs registration power: supply: lp8788: fix race-condition in sysfs registration power: supply: ds2781: fix race-condition in sysfs registration power: supply: ds2780: fix race-condition in sysfs registration power: supply: bq2415x: fix race-condition in sysfs registration power: supply: core: add support for custom sysfs attributes power: supply: sc27xx: Save last battery capacity power: reset: at91-poweroff: move shdwc related data to one structure power: supply: sc27xx: Add suspend/resume interfaces power: supply: sc27xx: Add fuel gauge low voltage alarm ...
2018-12-28Merge tag 'devicetree-for-4.21' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree updates from Rob Herring: "The biggest highlight here is the start of using json-schema for DT bindings. Being able to validate bindings has been discussed for years with little progress. - Initial support for DT bindings using json-schema language. This is the start of converting DT bindings from free-form text to a structured format. - Reworking of initrd address initialization. This moves to using the phys address instead of virt addr in the DT parsing code. This rework was motivated by CONFIG_DEV_BLK_INITRD causing unnecessary rebuilding of lots of files. - Fix stale phandle entries in phandle cache - DT overlay validation improvements. This exposed several memory leak bugs which have been fixed. - Use node name and device_type helper functions in DT code - Last remaining conversions to using %pOFn printk specifier instead of device_node.name directly - Create new common RTC binding doc and move all trivial RTC devices out of trivial-devices.txt. - New bindings for Freescale MAG3110 magnetometer, Cadence Sierra PHY, and Xen shared memory - Update dtc to upstream version v1.4.7-57-gf267e674d145" * tag 'devicetree-for-4.21' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (68 commits) of: __of_detach_node() - remove node from phandle cache of: of_node_get()/of_node_put() nodes held in phandle cache gpio-omap.txt: add reg and interrupts properties dt-bindings: mrvl,intc: fix a trivial typo dt-bindings: iio: magnetometer: add dt-bindings for freescale mag3110 dt-bindings: Convert trivial-devices.txt to json-schema dt-bindings: arm: mrvl: amend Browstone compatible string dt-bindings: arm: Convert Tegra board/soc bindings to json-schema dt-bindings: arm: Convert ZTE board/soc bindings to json-schema dt-bindings: arm: Add missing Xilinx boards dt-bindings: arm: Convert Xilinx board/soc bindings to json-schema dt-bindings: arm: Convert VIA board/soc bindings to json-schema dt-bindings: arm: Convert ST STi board/soc bindings to json-schema dt-bindings: arm: Convert SPEAr board/soc bindings to json-schema dt-bindings: arm: Convert CSR SiRF board/soc bindings to json-schema dt-bindings: arm: Convert QCom board/soc bindings to json-schema dt-bindings: arm: Convert TI nspire board/soc bindings to json-schema dt-bindings: arm: Convert TI davinci board/soc bindings to json-schema dt-bindings: arm: Convert Calxeda board/soc bindings to json-schema dt-bindings: arm: Convert Altera board/soc bindings to json-schema ...
2018-12-18power: supply: bq25890: fix BAT_COMP field definitionMichał Mirosław1-1/+1
According to datasheet, BAT_COMP field spans bits 5-7. The rest of the code seems to assume this already. Fixes: 4aeae9cb0dad ("power_supply: Add support for TI BQ25890 charger chip") Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: gpio-charger: Do not use deprecated POWER_SUPPLY_TYPE_USB_*Sebastian Reichel1-3/+3
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: ds2781: switch to devm_power_supply_registerSebastian Reichel1-12/+3
Simplify/Cleanup the driver by switching to devm_power_supply_register and dropping the driver's remove function. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: ds2780: switch to devm_power_supply_registerSebastian Reichel1-12/+3
Simplify/Cleanup the driver by switching to devm_power_supply_register and dropping the driver's remove function. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: ds2781: fix race-condition in bin attribute registrationSebastian Reichel1-31/+19
This is a follow-up patch to the previous one, which fixed a race-condition during registration of the attribute group. This fixes the same issue for the binary attributes by adding them to the properly registered group. As a side effect the code is further cleaned up. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: ds2780: fix race-condition in bin attribute registrationSebastian Reichel1-35/+20
This is a follow-up patch to the previous one, which fixed a race-condition during registration of the attribute group. This fixes the same issue for the binary attributes by adding them to the properly registered group. As a side effect the code is further cleaned up. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: pcf50633: fix race-condition in sysfs registrationSebastian Reichel1-10/+7
This registers custom sysfs properties using the native functionality of the power-supply framework, which cleans up the code a bit and fixes a race-condition. Before this patch the sysfs attributes were not properly registered to udev. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: charger-manager: fix race-condition in sysfs registrationSebastian Reichel1-29/+22
This registers custom sysfs properties using the native functionality of the power-supply framework, which cleans up the code a bit and fixes a race-condition. Before this patch the sysfs attributes were not properly registered to udev. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: charger-manager: simplify generation of sysfs attribute group ↵Sebastian Reichel1-9/+4
name This is a simple cleanup and there should be no functional changes. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: bq24257: fix race-condition in sysfs registrationSebastian Reichel1-12/+3
This registers custom sysfs properties using the native functionality of the power-supply framework, which cleans up the code a bit and fixes a race-condition. Before this patch the sysfs attributes were not properly registered to udev. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: bq24190_charger: fix race-condition in sysfs registrationSebastian Reichel1-35/+8
This registers custom sysfs properties using the native functionality of the power-supply framework, which cleans up the code a bit and fixes a race-condition. Before this patch the sysfs attributes were not properly registered to udev. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: lp8788: fix race-condition in sysfs registrationSebastian Reichel1-35/+27
This registers custom sysfs properties using the native functionality of the power-supply framework, which cleans up the code a bit and fixes a race-condition. Before this patch the sysfs attributes were not properly registered to udev. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: ds2781: fix race-condition in sysfs registrationSebastian Reichel1-19/+4
This registers custom sysfs properties using the native functionality of the power-supply framework, which cleans up the code a bit and fixes a race-condition. Before this patch the sysfs attributes were not properly registered to udev. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: ds2780: fix race-condition in sysfs registrationSebastian Reichel1-19/+4
This registers custom sysfs properties using the native functionality of the power-supply framework, which cleans up the code a bit and fixes a race-condition. Before this patch the sysfs attributes were not properly registered to udev. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: bq2415x: fix race-condition in sysfs registrationSebastian Reichel1-70/+49
This registers custom sysfs properties using the native functionality of the power-supply framework, which cleans up the code a bit and fixes a race-condition. Before this patch the sysfs attributes were not properly registered to udev. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-13power: supply: core: add support for custom sysfs attributesSebastian Reichel1-0/+1
Add functionality to setup device specific sysfs attributes in a race condition free manner Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-12PM / AVS: SmartReflex: Switch to SPDX Licence IDNishanth Menon1-4/+1
Fix up licensing to be inline with Linux conventions. Signed-off-by: Nishanth Menon <nm@ti.com> Acked-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-12-12PM / AVS: SmartReflex: NULL check before some freeing functions is not neededThomas Meyer1-2/+1
NULL check before some freeing functions is not needed. Signed-off-by: Thomas Meyer <thomas@m3y3r.de> Reviewed-by: Kevin Hilman <khilman@baylibre.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2018-12-11Merge back staging AVS changes for v4.21.Rafael J. Wysocki1-31/+0
2018-12-06power: supply: sc27xx: Save last battery capacityYuanjiang Yu1-1/+134
Our charger manager can optimize the battery capacity periodically, so we can save last battery capacity into registers. Then next system power-on, we can read the last saved battery capacity as the initial battery capacity, which can make the battery capacity more accurate. Signed-off-by: Yuanjiang Yu <yuanjiang.yu@unisoc.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-06power: reset: at91-poweroff: move shdwc related data to one structureClaudiu Beznea1-23/+25
Move SHDWC realted data to only one structure to have them grouped. Inspired from commit 9be74f0d39c1 ("power: reset: at91-poweroff: make mpddrc_base part of struct shdwc"). Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-06power: supply: sc27xx: Add suspend/resume interfacesYuanjiang Yu1-0/+77
Add fuel gauge platform suspend and resume interfaces. In suspend state, we should enable the low voltage and coulomb counter threshold interrupts to wake up system to calibrate the battery capacity in lower voltage stage. Signed-off-by: Yuanjiang Yu <yuanjiang.yu@unisoc.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2018-12-06power: supply: sc27xx: Add fuel gauge low voltage alarmYuanjiang Yu1-1/+170
Add low voltage alarm support to make sure the battery capacity more accurate in lower voltage stage. Signed-off-by: Yuanjiang Yu <yuanjiang.yu@unisoc.com> Signed-off-by: Baolin Wang <baolin.wang@linaro.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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