PATCH v2 0/2] Power: supply: Add PbAc, NiZn, RAM, and ZnAr support
From: Boris Shtrasman
Date: Wed Jun 24 2026 - 09:59:09 EST
These series adds support for PbAc, NiZn, RAM, and ZnAr chemistries as
defined in the Smart Battery Data Specification v1.1 (Section 5.1.30
DeviceChemistry).
Currently, the sbs-battery driver only handles LION, LiP, NiCd and NiMH.
The Smart Battery specification defines 8 possible values:
- Lead Acid (PbAc)
- Lithium Ion (LION)
- Nickel Cadmium (NiCd)
- Nickel Metal Hydride (NiMH)
- Nickel Zinc (NiZn)
- Rechargeable Alkaline-Manganese (RAM)
- Zinc Air (ZnAr)
- Lithium Polymer (LiP)
Map the missing specification values to their respective core kernel
POWER_SUPPLY_TECHNOLOGY definitions and documenation, declare these
values into selftest.
In selftest LiMn is moved to the next line to comply with
checkpatch warning after adding said types.
It is an update for
https://lore.kernel.org/linux-pm/ajmc_naB7zYv0SPY@venus.
Link: https://sbs-forum.org/specs/sbdat110.pdf
Signed-off-by: Boris Shtrasman <borissh1983@xxxxxxxxx>
--
Changes in V2:
1. Seperate into two patches.
2. Modify Documenation, self test and sysfs interface. self test is
updated as the documeation is now mentioning them.
--
Boris Shtrasman (2):
power: supply: Add PbAc, NiZn, RAM, and ZnAr support
power: supply: sbs-battery: Add PbAc, NiZn, RAM, and ZnAr support
Documentation/ABI/testing/sysfs-class-power | 2 +-
drivers/power/supply/power_supply_sysfs.c | 4 ++++
drivers/power/supply/sbs-battery.c | 8 ++++++++
include/linux/power_supply.h | 4 ++++
.../power_supply/test_power_supply_properties.sh | 3 ++-
5 files changed, 19 insertions(+), 2 deletions(-)
--
2.47.3