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Subject[PATCH v6 0/3] Add Richtek RT9471 3A battery charger support
From: ChiYuan Huang <>

This patch set is to add Richtek RT9471 charger support.

The RT9471/D is a highly-integrated 3A switch mode battery charge management
and system power path management device for single cell Li-Ion and Li-polymer
battery. The low impedance power path optimizes switch-mode operation
efficiency, reduces battery charging time and extends battery life during
discharging phase.

Since v6:
- Use 'ATTRIBUTE_GROUPS' macro to simplify the attribute coding.
- Explain more details for sysoff_enable attribute.

Since v5:
- Remove one line wrapper.
- Merge header content into source file, remove header file.
- Remove 'charge_term_enable' sysfs entry and merge it into
'charge_term_current' property control.
- Change MODULE_LICENSE from 'GPL v2' to 'GPL'.
Following by the below discussion
- Recover all the change in sysfs-class-power.
- New a sysfs-class-power-rt9471 file.
- Remove 'charge_term_enable' sysfs entry, directly integrate it in
'charge_term_current' power supply property control.

Since v4:
- Remove the line for the owner field in driver.
- Add the documentation for sysfs entries.

Since v3:
- Move unevaluatedProperties line after $ref for binding patch.
- Add Reviewed-by tag for binding patch.

Since v2:
- Remove the properties for interrupt controller things in the binding documentation.
- Fix dtc error for typo, it's 'regulator-name', not 'regulator-compatible'.
- Add regulator min/max microamp to allow otg vbus current adjustable in example.
- Specify the active-level for charge-enable-gpios in binding example.
- Fix checkpatch error about 'foo * bar' to 'foo *bar' in psy_device_to_chip function.
- Specify the member name directly for the use of linear range.

ChiYuan Huang (3):
dt-bindings: power: supply: Add Richtek RT9471 battery charger
power: supply: rt9471: Add Richtek RT9471 charger driver
Documentation: power: rt9471: Document exported sysfs entries

Documentation/ABI/testing/sysfs-class-power-rt9471 | 32 +
.../bindings/power/supply/richtek,rt9471.yaml | 73 ++
drivers/power/supply/Kconfig | 16 +
drivers/power/supply/Makefile | 1 +
drivers/power/supply/rt9471.c | 930 +++++++++++++++++++++
5 files changed, 1052 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-class-power-rt9471
create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt9471.yaml
create mode 100644 drivers/power/supply/rt9471.c


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