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2020-05-29power: supply: sbs-battery: add POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT/VOLTAGE_MAX supportSebastian Reichel1-0/+12
Expose maximum charge current/voltage information requested by the battery. Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-29power: supply: sbs-battery: Improve POWER_SUPPLY_PROP_TECHNOLOGY supportSebastian Reichel1-2/+41
This reads the battery chemistry from the battery chip instead of incorrectly hardcoding the type to be Li-Ion. Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-29power: supply: sbs-battery: add POWER_SUPPLY_PROP_CURRENT_AVG supportSebastian Reichel1-3/+9
Expose averaged current information, which is part of the SBS standard and should be supported by all batteries. Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-29power: supply: sbs-battery: add PEC supportSebastian Reichel1-3/+69
SBS batteries optionally have support for PEC. This enables PEC handling based on the implemented SBS version as suggested by the standard. The support for PEC is re-evaluated when the battery is hotplugged into the system, since there might be systems supporting batteries from different SBS generations. Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-29power: supply: sbs-battery: simplify read_read_string_dataSebastian Reichel1-53/+12
The SBS battery implements SMBus block reads. Currently the driver "emulates" this by doing an I2C byte read for the length followed by an I2C block read. The I2C subsystem actually provides a proper API for doing SMBus block reads, which can and should be used instead. The current implementation does not properly handle packet error checking (PEC). This change requires, that I2C bus drivers support I2C_M_RECV_LEN or directly provide the SMBus API to access device manufacturer and model name. Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-29power: supply: sbs-battery: add POWER_SUPPLY_PROP_CAPACITY_ERROR_MARGIN supportSebastian Reichel1-0/+5
Add support for reporting the MaxError register from battery fuel gauges following the smart battery standard. Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-28power: supply: sbs-battery: Add TI BQ20Z65 supportSebastian Reichel2-5/+11
Add support for BQ20Z65 manufacturer data to the sbs-battery driver. Implementation has been verified using the public TRM available from [0] and tested using a GE Flex 3S2P battery. [0] http://www.ti.com/lit/pdf/sluu386 Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-28power: supply: core: add POWER_SUPPLY_HEALTH_CALIBRATION_REQUIREDSebastian Reichel3-1/+3
Some battery fuel gauges know when the battery needs to be recalibrated before providing usable values. This should be reported via the health property. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-28power: supply: core: add manufacture date propertiesSebastian Reichel3-0/+34
Some smart batteries store their manufacture date, which is useful to identify the battery and/or to know about the cell quality. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-28power: supply: core: add capacity error margin propertySebastian Reichel3-0/+17
Add a property for reporting the error margin expected by fuel gauge chips. Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-28kobject: increase allowed number of uevent variablesSebastian Reichel1-1/+1
SBS battery driver exposes 32 power supply properties now, which will result in uevent failure on (un)plugging the battery. Other drivers (e.g. bq27xxx) are also coming close to this limit, so increase it. Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-28power: supply: Make bd9995x_chip_reset staticSamuel Zou1-1/+1
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: 0902f8366491 ("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>
2020-05-28power: charger: max14577: Add proper dt-compatible stringsMarek Szyprowski1-0/+10
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: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-28power: reset: syscon-reboot: Add parental syscon supportSerge Semin1-2/+5
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: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-28dt-bindings: power: reset: Unrequire regmap property in syscon-reboot nodeSerge Semin1-5/+10
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: Serge Semin <Sergey.Semin@baikalelectronics.ru> Reviewed-by: Rob Herring <robh@kernel.org> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
2020-05-26MAINTAINERS: Add entry for mp2629 Battery Charger driverSaravanan Sekar1-0/+5
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: Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>