power_supply: Add watchdog and safety timer expiries under PROP_HEALTH_*

As most of the charger chips come with two kinds of safety features
related to timing:

1. Watchdog Timer (interms of seconds/mins)
2. Safety Timer (interms of hours)

This patch adds these to fault causes in POWER_SUPPLY_PROP_HEALTH_* enums
so that whenever there is either watchdog timeout or safety timer timeout
driver could notify the user space accurately about the fault and will
also be helpful for debug.

Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>

diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index 40fa3b7cae548033d0d69e358574326e11a8f22c..29178f78d73cfb79868923bfee7ffbe30b393e1b 100644 (file)
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -55,7 +55,8 @@ static ssize_t power_supply_show_property(struct device *dev,
        };
        static char *health_text[] = {
                "Unknown", "Good", "Overheat", "Dead", "Over voltage",
-               "Unspecified failure", "Cold",
+               "Unspecified failure", "Cold", "Watchdog timer expire",
+               "Safety timer expire"
        };
        static char *technology_text[] = {
                "Unknown", "NiMH", "Li-ion", "Li-poly", "LiFe", "NiCd",

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 1f0ab90aff00ccbfc5075d49225d9d56ef73e4c8..25c0982eb9b13b0066ef157fba03db61d58834a0 100644 (file)
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -54,6 +54,8 @@ enum {
        POWER_SUPPLY_HEALTH_OVERVOLTAGE,
        POWER_SUPPLY_HEALTH_UNSPEC_FAILURE,
        POWER_SUPPLY_HEALTH_COLD,
+       POWER_SUPPLY_HEALTH_WATCHDOG_TIMER_EXPIRE,
+       POWER_SUPPLY_HEALTH_SAFETY_TIMER_EXPIRE,
 };
 
 enum {