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power: supply: Add PbAc, NiZn, RAM, and ZnAr support

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Add four new members to the POWER_SUPPLY_TECHNOLOGY
enum and sysfs interface to represent the Smart Battery
Data Specification v1.1 (Section 5.1.30 DeviceChemistry) battery types:

 - Lead Acid (PbAc)
 - Nickel Zinc (NiZn)
 - Rechargeable Alkaline-Manganese (RAM)
 - Zinc Air (ZnAr)

Update documentation to express these types.
Update ABI testing for these types.

Link: https://sbs-forum.org/specs/sbdat110.pdf
Signed-off-by: Boris Shtrasman <borissh1983@gmail.com>
Link: https://patch.msgid.link/20260624135718.286771-2-borissh1983@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Boris Shtrasman 2026-06-24 16:57:17 +03:00 committed by Sebastian Reichel
parent 5ec27fa6b9
commit e4426ddf78
4 changed files with 11 additions and 2 deletions
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2
Documentation/ABI/testing/sysfs-class-power
View File

@ -525,7 +525,7 @@ Description:
Valid values:
"Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe",
"NiCd", "LiMn"
"NiCd", "LiMn", "PbAc", "NiZn", "RAM", "ZnAr"
What: /sys/class/power_supply/<supply_name>/voltage_avg,

4
drivers/power/supply/power_supply_sysfs.c
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@ -124,6 +124,10 @@ static const char * const POWER_SUPPLY_TECHNOLOGY_TEXT[] = {
[POWER_SUPPLY_TECHNOLOGY_LiFe] = "LiFe",
[POWER_SUPPLY_TECHNOLOGY_NiCd] = "NiCd",
[POWER_SUPPLY_TECHNOLOGY_LiMn] = "LiMn",
[POWER_SUPPLY_TECHNOLOGY_PbAc] = "PbAc",
[POWER_SUPPLY_TECHNOLOGY_NiZn] = "NiZn",
[POWER_SUPPLY_TECHNOLOGY_RAM] = "RAM",
[POWER_SUPPLY_TECHNOLOGY_ZnAr] = "ZnAr",
};
static const char * const POWER_SUPPLY_CAPACITY_LEVEL_TEXT[] = {

4
include/linux/power_supply.h
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@ -83,6 +83,10 @@ enum {
POWER_SUPPLY_TECHNOLOGY_LiFe,
POWER_SUPPLY_TECHNOLOGY_NiCd,
POWER_SUPPLY_TECHNOLOGY_LiMn,
POWER_SUPPLY_TECHNOLOGY_PbAc,
POWER_SUPPLY_TECHNOLOGY_NiZn,
POWER_SUPPLY_TECHNOLOGY_RAM,
POWER_SUPPLY_TECHNOLOGY_ZnAr,
};
enum {

3
tools/testing/selftests/power_supply/test_power_supply_properties.sh
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@ -74,7 +74,8 @@ for DEVNAME in $supplies; do
test_sysfs_prop_optional model_name
test_sysfs_prop_optional manufacturer
test_sysfs_prop_optional serial_number
test_sysfs_prop_optional_list technology "Unknown","NiMH","Li-ion","Li-poly","LiFe","NiCd","LiMn"
test_sysfs_prop_optional_list technology "Unknown","NiMH","Li-ion","Li-poly","LiFe","NiCd"\
,"LiMn","PbAc","NiZn","RAM","ZnAr"
test_sysfs_prop_optional cycle_count