[PATCH v2 0/3] Add Richtek RT9467 5A Battery Charger support

[ChiaEn Wu]

From: ChiaEn Wu <chiaen_wu@xxxxxxxxxxx>

This patch set is to add Richtek RT9467 5A Battery Charger support.

RT9467 is a switch-mode single cell Li-Ion/Li-Polymer battery charger
for portable applications.

It integrates a synchronous PWM controller, power MOSFETs,
input current sensing and regulation, high-accuracy voltage regulation,
and charge termination. The charge current is regulated through
integrated sensing resistors.

The RT9467 also features USB On-The-Go (OTG) support. It also integrates
D+/D- pin for USB host/charging port detection.

This charger driver is based on a 'linear_ranger' queued patch which adds
'LINEAR_RANGE_IDX' macro for declaring the linear_range struct simply.
https://lore.kernel.org/all/20220920161218.dkkfvfomrruebahi@xxxxxxxxxxxxxxxxxxxxxx/

Thank you,
ChiaEn Wu
---
Change in v2:
- In Patch 1/3 (dt-bindings: RT9467 Charger DTS)
	- Revise the definition of 'enable-gpios'
	- Revise the node name to generic name in the example
	  ('rt9467@5b' --> 'charger@5b')
	- Revise the example usage of 'charge-enable-gpios' with GPIO flags

- In Patch 2/3 (power: supply: RT9467 Charger Driver)
	- Add missing header file <linux/bitfied.h>
	- Add new header files <linux/sysfs.h> and <linux/kstrtox.h> for adding
	  'sysoff' sysfs feature
	- Add assign 'rt9467_sysfs_groups' to '.attr_grp' of psy config
	- Remove unused varible 'rt9467_port_stat_names[]'

- In Patch 3/3 (ABI Documentation for RT9467 sysfs attribute)
	- New file since v2 patchset

ChiaEn Wu (3):
  dt-bindings: power: supply: Add Richtek RT9467 battery charger
  power: supply: rt9467: Add Richtek RT9467 charger driver
  Documentation: power: rt9467: Document exported sysfs entries

 Documentation/ABI/testing/sysfs-class-power-rt9467 |   19 +
 .../power/supply/richtek,rt9467-charger.yaml       |   82 ++
 drivers/power/supply/Kconfig                       |   19 +
 drivers/power/supply/Makefile                      |    1 +
 drivers/power/supply/rt9467-charger.c              | 1282 ++++++++++++++++++++
 5 files changed, 1403 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-class-power-rt9467
 create mode 100644 Documentation/devicetree/bindings/power/supply/richtek,rt9467-charger.yaml
 create mode 100644 drivers/power/supply/rt9467-charger.c

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2.7.4