power: supply: core: add POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED

Some battery fuel gauges know when the battery needs to
be recalibrated before providing usable values. This
should be reported via the health property.

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 e6d7348..216d61a 100644 (file)
--- a/Documentation/ABI/testing/sysfs-class-power
+++ b/Documentation/ABI/testing/sysfs-class-power
@@ -205,7 +205,7 @@ Description:
                Valid values: "Unknown", "Good", "Overheat", "Dead",
                              "Over voltage", "Unspecified failure", "Cold",
                              "Watchdog timer expire", "Safety timer expire",
-                             "Over current"
+                             "Over current", "Calibration required"
 
 What:          /sys/class/power_supply/<supply_name>/precharge_current
 Date:          June 2017

diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index 78d5382..bc79560 100644 (file)
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -100,6 +100,7 @@ static const char * const POWER_SUPPLY_HEALTH_TEXT[] = {
        [POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE] = "Watchdog timer expire",
        [POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE]   = "Safety timer expire",
        [POWER_SUPPLY_HEALTH_OVERCURRENT]           = "Over current",
+       [POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED]  = "Calibration required",
 };
 
 static const char * const POWER_SUPPLY_TECHNOLOGY_TEXT[] = {

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 63ffe2a..ac1345a 100644 (file)
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -61,6 +61,7 @@ enum {
        POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
        POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
        POWER_SUPPLY_HEALTH_OVERCURRENT,
+       POWER_SUPPLY_HEALTH_CALIBRATION_REQUIRED,
 };
 
 enum {