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power: supply: core: Add additional health status values

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Some batteries can signal when an internal fuse was blown. In such a
case POWER_SUPPLY_HEALTH_DEAD is too vague for userspace applications
to perform meaningful diagnostics.

Additionally some batteries can also signal when some of their
internal cells are imbalanced. In such a case returning
POWER_SUPPLY_HEALTH_UNSPEC_FAILURE is again too vague for userspace
applications to perform meaningful diagnostics.

Add new health status values for both cases.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20250429003606.303870-1-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Armin Wolf
2025-04-29 02:36:03 +02:00
committed by Ilpo Järvinen
parent 511a4a5ea2
commit f4856c20c1
3 changed files with 5 additions and 1 deletions
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2
Documentation/ABI/testing/sysfs-class-power
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@@ -456,7 +456,7 @@ Description:
"Over voltage", "Under voltage", "Unspecified failure", "Cold",
"Watchdog timer expire", "Safety timer expire",
"Over current", "Calibration required", "Warm",
"Cool", "Hot", "No battery"
"Cool", "Hot", "No battery", "Blown fuse", "Cell imbalance"
What: /sys/class/power_supply/<supply_name>/precharge_current
Date: June 2017