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power: supply: Add bd718(15/28/78) charger driver

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Add charger driver for ROHM BD718(15/28/78) PMIC charger block.
It is a stripped down version of the driver here:
https://lore.kernel.org/lkml/dbd97c1b0d715aa35a8b4d79741e433d97c562aa.1637061794.git.matti.vaittinen@fi.rohmeurope.com/

For the ease of review and to do a step-by-step approach remove all the
coloumb counter related stuff and do not sneak in BD71827 support. That
also avoids non-trivial rebasing of the above series.

Changes besides that:
Replace the custom property by a standard one and do not use megaohms
for the current sense resistor.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Reviewed-by: Matti Vaittinen <mazziesaccount@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://patch.msgid.link/20250918-bd71828-charger-v5-2-851164839c28@kemnade.info
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Andreas Kemnade 2025-09-18 09:45:10 +02:00 committed by Sebastian Reichel
parent 3a86608788
commit 5bff79dad2
3 changed files with 1059 additions and 0 deletions
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9
drivers/power/supply/Kconfig
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@ -996,6 +996,15 @@ config CHARGER_UCS1002
Say Y to enable support for Microchip UCS1002 Programmable Say Y to enable support for Microchip UCS1002 Programmable
USB Port Power Controller with Charger Emulation. USB Port Power Controller with Charger Emulation.
config CHARGER_BD71828
tristate "Power-supply driver for ROHM BD71828 and BD71815 PMIC"
depends on MFD_ROHM_BD71828
help
Say Y here to enable support for charger and battery
in ROHM BD71815, BD71817, ROHM BD71828 power management
ICs. This driver gets various bits of information about battery
and charger states.
config CHARGER_BD99954 config CHARGER_BD99954
tristate "ROHM bd99954 charger driver" tristate "ROHM bd99954 charger driver"
depends on I2C depends on I2C

1
drivers/power/supply/Makefile
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@ -116,6 +116,7 @@ obj-$(CONFIG_CHARGER_SC2731) += sc2731_charger.o
obj-$(CONFIG_FUEL_GAUGE_SC27XX) += sc27xx_fuel_gauge.o obj-$(CONFIG_FUEL_GAUGE_SC27XX) += sc27xx_fuel_gauge.o
obj-$(CONFIG_FUEL_GAUGE_STC3117) += stc3117_fuel_gauge.o obj-$(CONFIG_FUEL_GAUGE_STC3117) += stc3117_fuel_gauge.o
obj-$(CONFIG_CHARGER_UCS1002) += ucs1002_power.o obj-$(CONFIG_CHARGER_UCS1002) += ucs1002_power.o
obj-$(CONFIG_CHARGER_BD71828) += bd71828-power.o
obj-$(CONFIG_CHARGER_BD99954) += bd99954-charger.o obj-$(CONFIG_CHARGER_BD99954) += bd99954-charger.o
obj-$(CONFIG_CHARGER_WILCO) += wilco-charger.o obj-$(CONFIG_CHARGER_WILCO) += wilco-charger.o
obj-$(CONFIG_RN5T618_POWER) += rn5t618_power.o obj-$(CONFIG_RN5T618_POWER) += rn5t618_power.o

1049
drivers/power/supply/bd71828-power.c Normal file
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