- May 29, 2020
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Samuel Zou authored
Fix the following sparse warning: drivers/power/supply/bd99954-charger.c:1028:6: warning: symbol 'bd9995x_chip_reset' was not declared. The bd9995x_chip_reset() has only one call site within bd99954-charger.c It should be static Fixes: 0902f836 ("power: supply: Support ROHM bd99954 charger") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Samuel Zou <zou_wei@huawei.com> Reviewed-by:
Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com> Signed-off-by:
Sebastian Reichel <sebastian.reichel@collabora.com>
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- May 28, 2020
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Marek Szyprowski authored
Add device tree compatible strings and create proper modalias structures to let this driver load automatically if compiled as module, because max14577 MFD driver creates MFD cells with such compatible strings. Signed-off-by:
Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by:
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Sebastian Reichel authored
This merges the MP2629 battery charge management immutable branch between MFD, IIO and power-supply due for the v5.8 merge window into power-supply for-next branch. Signed-off-by: -
Serge Semin authored
Since normally syscon-reboot block is supposed to be a part of a system controller, lets look for the syscon regmap in a parental DT node if regmap property isn't specified. DT binding from now considers the regmap property as deprecated. Signed-off-by:
Serge Semin <Sergey.Semin@baikalelectronics.ru> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by:
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Serge Semin authored
Since normally syscon-reboot block is supposed to be a part of a system controller, lets mark the regmap property as deprecated and recommend the syscon-reboot node to be a sub-node of SYSCON. Signed-off-by:
Rob Herring <robh@kernel.org> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by:
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- May 26, 2020
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Saravanan Sekar authored
Add MAINTAINERS entry for Monolithic Power Systems mp2629 Charger driver. Signed-off-by:
Saravanan Sekar <sravanhome@gmail.com> Reviewed-by:
Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by:
Lee Jones <lee.jones@linaro.org>
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Saravanan Sekar authored
Allows the user to compensate the intrinsic resistance of the battery to accelerate the charging cycle. Signed-off-by:
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Saravanan Sekar authored
The mp2629 provides switching-mode battery charge management for single-cell Li-ion or Li-polymer battery. Driver supports the access/control input source and battery charging parameters. Signed-off-by:
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Saravanan Sekar authored
Add support for 8-bit resolution ADC readings for input power supply and battery charging measurement. Provides voltage, current readings to mp2629 power supply driver. Signed-off-by:
Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by:
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Saravanan Sekar authored
mp2629 is a highly-integrated switching-mode battery charge management device for single-cell Li-ion or Li-polymer battery. Add MFD core enables chip access for ADC driver for battery readings, and a power supply battery-charger driver Signed-off-by:
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Saravanan Sekar authored
Add device tree binding information for mp2629 mfd driver. Signed-off-by:
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- May 18, 2020
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Dan Murphy authored
Convert the bq27xxx.txt to yaml format CC: Pali Rohár <pali@kernel.org> CC: Andrew F. Davis <afd@ti.com> Signed-off-by:
Dan Murphy <dmurphy@ti.com> Reviewed-by:
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- May 13, 2020
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Wolfram Sang authored
Move away from the deprecated API in this comment. Signed-off-by:
Wolfram Sang <wsa+renesas@sang-engineering.com> Signed-off-by:
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- May 11, 2020
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Michał Mirosław authored
Report REG00.IINLIM value as INPUT_CURRENT_LIMIT property. Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by:
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Michał Mirosław authored
Report configured precharge current. Signed-off-by:
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Michał Mirosław authored
Report charging type based on recently read state. Signed-off-by:
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Michał Mirosław authored
Edge interrupts from the charger may be lost or stuck in fault mode since probe(). Check if something changed everytime userspace wants some data. Signed-off-by:
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Michał Mirosław authored
Datasheet describes two modes for reading ADC measurements: 1. continuous, 1 Hz - enabled and started by CONV_RATE bit 2. one-shot - triggered by CONV_START bit In continuous mode, CONV_START is read-only and signifies an ongoing conversion. Change the code to follow the datasheet and really disable continuous mode for power saving. Signed-off-by:
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Michał Mirosław authored
Charge Current is more apropriately reflected by CURRENT_NOW property (measured current) than CONSTANT_CURRENT_VOLTAGE (configured CC-phase current limit). Fix the reference and make the sign reflect direction of the current. Signed-off-by:
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Jonathan Bakker authored
According to the datasheet available at (1), the bottom four bits are always zero and the actual voltage is 1.25x this value in mV. Since the kernel API specifies that voltages should be in uV, it should report 1250x the shifted value. 1) https://datasheets.maximintegrated.com/en/ds/MAX17040-MAX17041.pdf Signed-off-by:
Jonathan Bakker <xc-racer2@live.ca> Signed-off-by:
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Lubomir Rintel authored
The framework is unhappy about them, because it uses the names in sysfs attributes: power_supply olpc-ac: hwmon: 'olpc-ac' is not a valid name attribute, please fix power_supply olpc-battery: hwmon: 'olpc-battery' is not a valid name attribute, please fix See also commit 648cd48c ("hwmon: Do not accept invalid name attributes") and commit 74d3b641 ("hwmon: Relax name attribute validation for new APIs"). Signed-off-by:
Lubomir Rintel <lkundrak@v3.sk> Signed-off-by:
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David Heidelberg authored
This delay-fix is picked up from downstream driver, we measured that 25 - 35 ms delay ensure that we get required data. Tested on SMB347 on Nexus 7 2012. Otherwise IRQSTAT_E fails to provide correct information. Signed-off-by:
Dmitry Osipenko <digetx@gmail.com> Signed-off-by:
David Heidelberg <david@ixit.cz> Signed-off-by:
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Dmitry Osipenko authored
Fix failure when USB cable is connected: smb347 2-006a: reading IRQSTAT_D failed Fixes: 1502cfe1 ("smb347-charger: Fix battery status reporting logic for charger faults") Tested-by:
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- May 10, 2020
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Matti Vaittinen authored
The "default n" is not needed as it is, well, default. Clean the KConfig by removing "default n". Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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Matti Vaittinen authored
Indent the help text as explained in Documentation/process/coding-style.rst Signed-off-by:
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Matti Vaittinen authored
The ROHM BD99954 is a Battery Management LSI for 1-4 cell Lithium-Ion secondary battery intended to be used in space-constraint equipment such as Low profile Notebook PC, Tablets and other applications. BD99954 provides a Dual-source Battery Charger, two port BC1.2 detection and a Battery Monitor. Support ROHM BD99954 Charger IC. Signed-off-by:
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Matti Vaittinen authored
The ROHM BD99954 is a Battery Management LSI for 1-4 cell Lithium-Ion secondary battery. Intended to be used in space-constraint equipment such as Low profile Notebook PC, Tablets and other applications. BD99954 provides a Dual-source Battery Charger, two port BC1.2 detection and a Battery Monitor. Document the DT bindings for BD99954 Signed-off-by:
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Matti Vaittinen authored
Add parsing of new device-tree battery bindings. - trickle-charge-current-microamp - precharge-upper-limit-microvolt - re-charge-voltage-microvolt - over-voltage-threshold-microvolt Signed-off-by: -
Matti Vaittinen authored
Add: - trickle-charge-current-microamp: Some chargers have 3 charging stages. First one when battery is almost empty is often called as trickle-charge. Last state when battery has been "woken up" is usually called as fast-charge. In addition to this some chargers have a 'middle state' which ROHM BD99954 data-sheet describes as pre-charge. Some batteries can benefit from this 3-phase charging [citation needed]. Introduce trickle-charge-current-microamp so that batteries can give charging current limit for all three states. - precharge-upper-limit-microvolt: When battery voltage has reached certain limit we change from trickle-charge to next charging state (pre-charge for BD99954). Allow battery to specify this limit. - re-charge-voltage-microvolt: Allow giving a battery specific voltage limit for chargers which can automatically re-start charging when battery has discharghed down to this limit. - over-voltage-threshold-microvolt Allow specifying voltage threshold after which the battery is assumed to be faulty. Signed-off-by:
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Matti Vaittinen authored
Change the bd70528 to use common linear_range code instead of implementing a copy of it in this driver. Signed-off-by:
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Sebastian Reichel authored
lib: Add linear ranges helper library and start using it Series extracts a "linear ranges" helper out of the regulator framework. Linear ranges helper is intended to help converting real-world values to register values when conversion is linear. I suspect this is useful also for power subsystem and possibly for clk. Signed-off-by: -
Hongbo Yao authored
Fix gcc '-Wunused-but-set-variable' warning: drivers/power/reset/ltc2952-poweroff.c:97:16: warning: variable ‘overruns’ set but not used [-Wunused-but-set-variable] unsigned long overruns; Reported-by:
Hongbo Yao <yaohongbo@huawei.com> Signed-off-by:
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Christophe JAILLET authored
In the probe function, in case of error, resources allocated in 'lp8788_setup_adc_channel()' must be released. This can be achieved easily by using the devm_ variant of 'iio_channel_get()'. This has the extra benefit to simplify the remove function and to axe the 'lp8788_release_adc_channel()' function which is now useless. Fixes: 98a27664 ("power_supply: Add new lp8788 charger driver") Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
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- May 09, 2020
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Serge Semin authored
Modern device tree bindings are supposed to be created as YAML-files in accordance with dt-schema. This commit replaces SYSCON reboot-mode legacy bare text bindings with YAML file. As before the bindings file states that the corresponding dts node is supposed to be compatible "syscon-reboot-mode" device and necessarily have an offset property to determine which register from the regmap is supposed to keep the mode on reboot. Signed-off-by:
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ChenTao authored
Fix the following warning: drivers/power/supply/cw2015_battery.c:96:5: warning: 'cw_update_profile' was not declared. Should it be static? drivers/power/supply/cw2015_battery.c:712:1: warning: 'cw_bat_pm_ops' was not declared. Should it be static? Reported-by:
ChenTao <chentao107@huawei.com> Acked-by:
Tobias Schramm <t.schramm@manjaro.org> Tested-by:
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Dan Carpenter authored
We introduced some new locking here, but need to update the error paths so they unlock before returning. Fixes: 72d9cd9c ("power: bq25890: protect view of the chip's state") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by:
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Matti Vaittinen authored
Change the regulator helpers to use common linear_ranges code. Signed-off-by:
Mark Brown <broonie@kernel.org> Acked-by:
Charles Keepax <ckeepax@opensource.cirrus.com> Acked-by:
Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Link: https://lore.kernel.org/r/64f01d5e381b8631a271616b7790f9d5640974fb.1588944082.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by:
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Matti Vaittinen authored
Follow-up patches in this series will add a generic struct linear_range. Rename bd70528 internal struct to avoid collision. Signed-off-by:
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Matti Vaittinen authored
Add a KUnit test for the linear_ranges helper. Signed-off-by:Brendan Higgins <brendanhiggins@google.com> Link: https://lore.kernel.org/r/311fea741bafdcd33804d3187c1642e24275e3e5.1588944082.git.matti.vaittinen@fi.rohmeurope.com Signed-off-by:
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Matti Vaittinen authored
Many devices have control registers which control some measurable property. Often a register contains control field so that change in this field causes linear change in the controlled property. It is not a rare case that user wants to give 'meaningful' control values and driver needs to convert them to register field values. Even more often user wants to 'see' the currently set value - again in meaningful units - and driver needs to convert the values it reads from register to these meaningful units. Examples of this include: - regulators, voltage/current configurations - power, voltage/current configurations - clk(?) NCOs and maybe others I can't think of right now. Provide a linear_range helper which can do conversion from user value to register value 'selector'. The idea here is stolen from regulator framework and patches refactoring the regulator helpers to use this are following. Current implementation does not support inversely proportional ranges but it might be useful if we could support also inversely proportional ranges? Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Reviewed-by:
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