power_supply: Add min/max alert properties for CAPACITY, TEMP, TEMP_AMBIENT

Minimum and maximum alerts on power supply properties will help or allow
the user space to "proactively" create policies like connect/disconnect
charger or stop/start the user apps based on capacity or temperature
parameters.

These parameters can be used to avoid unnecessary polling from user space
and even from kernel space if the underlying HW can support INT triggers
(ex: max17042/47).

This patch adds the following power supply alert type properties:

 CAPACITY_ALERT_MIN
 CAPACITY_ALERT_MAX
 TEMP_ALERT_MIN
 TEMP_ALERT_MAX
 TEMP_AMBIENT_ALERT_MIN
 TEMP_AMBIENT_ALERT_MAX

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

1 files changed, 6 insertions, 0 deletions

diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 53f177db6ac9..0bafbb15f29c 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -118,9 +118,15 @@ enum power_supply_property {
         POWER_SUPPLY_PROP_ENERGY_NOW,
         POWER_SUPPLY_PROP_ENERGY_AVG,
         POWER_SUPPLY_PROP_CAPACITY, /* in percents! */
+        POWER_SUPPLY_PROP_CAPACITY_ALERT_MIN, /* in percents! */
+        POWER_SUPPLY_PROP_CAPACITY_ALERT_MAX, /* in percents! */
         POWER_SUPPLY_PROP_CAPACITY_LEVEL,
         POWER_SUPPLY_PROP_TEMP,
+        POWER_SUPPLY_PROP_TEMP_ALERT_MIN,
+        POWER_SUPPLY_PROP_TEMP_ALERT_MAX,
         POWER_SUPPLY_PROP_TEMP_AMBIENT,
+        POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MIN,
+        POWER_SUPPLY_PROP_TEMP_AMBIENT_ALERT_MAX,
         POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW,
         POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
         POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,