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power: supply: core: add POWER_SUPPLY_HEALTH_NO_BATTERY

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Some chargers can keep the system powered from the mains even when no
battery is present. It this case none of the currently defined health
statuses applies. Add a new status to report that no battery is present.

Suggested-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Luca Ceresoli 2021-11-08 17:27:05 +01:00 committed by Sebastian Reichel
parent f9a09de33b
commit 77d641baa3
3 changed files with 3 additions and 1 deletions
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2
Documentation/ABI/testing/sysfs-class-power
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@ -413,7 +413,7 @@ Description:
"Over voltage", "Unspecified failure", "Cold",
"Watchdog timer expire", "Safety timer expire",
"Over current", "Calibration required", "Warm",
"Cool", "Hot"
"Cool", "Hot", "No battery"
What: /sys/class/power_supply/<supply_name>/precharge_current
Date: June 2017

1
drivers/power/supply/power_supply_sysfs.c
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@ -106,6 +106,7 @@ static const char * const POWER_SUPPLY_HEALTH_TEXT[] = {
[POWER_SUPPLY_HEALTH_WARM] = "Warm",
[POWER_SUPPLY_HEALTH_COOL] = "Cool",
[POWER_SUPPLY_HEALTH_HOT] = "Hot",
[POWER_SUPPLY_HEALTH_NO_BATTERY] = "No battery",
};
static const char * const POWER_SUPPLY_TECHNOLOGY_TEXT[] = {

1
include/linux/power_supply.h
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@ -66,6 +66,7 @@ enum {
POWER_SUPPLY_HEALTH_WARM,
POWER_SUPPLY_HEALTH_COOL,
POWER_SUPPLY_HEALTH_HOT,
POWER_SUPPLY_HEALTH_NO_BATTERY,
};
enum {