power: supply: add undervoltage health status property

Add POWER_SUPPLY_HEALTH_UNDERVOLTAGE status for power supply
to report under voltage lockout failures.

Signed-off-by: Dzmitry Sankouski <dsankouski@gmail.com>
Link: https://lore.kernel.org/r/20250108-starqltechn_integration_upstream-v14-1-f6e84ec20d96@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>

diff --git a/Documentation/ABI/testing/sysfs-class-power b/Documentation/ABI/testing/sysfs-class-power
index cb53dde20a801bc1f6888634d6986cba11e3d328..2a5c1a09a28f91beec6b18ca7b4492093026bc81 100644 (file)
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -453,7 +453,7 @@ Description:
 
                Valid values:
                              "Unknown", "Good", "Overheat", "Dead",
-                             "Over voltage", "Unspecified failure", "Cold",
+                             "Over voltage", "Under voltage", "Unspecified failure", "Cold",
                              "Watchdog timer expire", "Safety timer expire",
                              "Over current", "Calibration required", "Warm",
                              "Cool", "Hot", "No battery"

diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index 9ce5eda2409387cfb55fbeacab1ced7b5ba5ceba..edb058c19c9c44ad9ad97a626fc8f59e3d3735a6 100644 (file)
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -99,6 +99,7 @@ static const char * const POWER_SUPPLY_HEALTH_TEXT[] = {
        [POWER_SUPPLY_HEALTH_OVERHEAT]              = "Overheat",
        [POWER_SUPPLY_HEALTH_DEAD]                  = "Dead",
        [POWER_SUPPLY_HEALTH_OVERVOLTAGE]           = "Over voltage",
+       [POWER_SUPPLY_HEALTH_UNDERVOLTAGE]          = "Under voltage",
        [POWER_SUPPLY_HEALTH_UNSPEC_FAILURE]        = "Unspecified failure",
        [POWER_SUPPLY_HEALTH_COLD]                  = "Cold",
        [POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE] = "Watchdog timer expire",

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index c3ce9f2b17d42650a648e64d6e4116aa8d96241a..6ed53b292162469d7b357734d5589bff18a201d0 100644 (file)
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -60,6 +60,7 @@ enum {
        POWER_SUPPLY_HEALTH_OVERHEAT,
        POWER_SUPPLY_HEALTH_DEAD,
        POWER_SUPPLY_HEALTH_OVERVOLTAGE,
+       POWER_SUPPLY_HEALTH_UNDERVOLTAGE,
        POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
        POWER_SUPPLY_HEALTH_COLD,
        POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,