Revert "power: remove POWER_SUPPLY_PROP_CAPACITY_LEVEL"

This reverts commit 8efe444038a205e79b38b7ad03878824901849a8 and
4cbc76eadf56399cd11fb736b33c53aec9caab8c.

Richard@laptop.org was apparently using CAPACITY_LEVEL for debugging
battery/EC problems, and was upset that it was removed.  This readds it.

Conflicts:

	Documentation/power_supply_class.txt

Signed-off-by: Andres Salomon <dilinger@collabora.co.uk>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c
index 58e419299cd6..3a589df09376 100644
--- a/drivers/power/olpc_battery.c
+++ b/drivers/power/olpc_battery.c
@@ -276,6 +276,14 @@ static int olpc_bat_get_property(struct power_supply *psy,
                         return ret;
                 val->intval = ec_byte;
                 break;
+        case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
+                if (ec_byte & BAT_STAT_FULL)
+                        val->intval = POWER_SUPPLY_CAPACITY_LEVEL_FULL;
+                else if (ec_byte & BAT_STAT_LOW)
+                        val->intval = POWER_SUPPLY_CAPACITY_LEVEL_LOW;
+                else
+                        val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
+                break;
         case POWER_SUPPLY_PROP_TEMP:
                 ret = olpc_ec_cmd(EC_BAT_TEMP, NULL, 0, (void *)&ec_word, 2);
                 if (ret)
@@ -321,6 +329,7 @@ static enum power_supply_property olpc_bat_props[] = {
         POWER_SUPPLY_PROP_VOLTAGE_AVG,
         POWER_SUPPLY_PROP_CURRENT_AVG,
         POWER_SUPPLY_PROP_CAPACITY,
+        POWER_SUPPLY_PROP_CAPACITY_LEVEL,
         POWER_SUPPLY_PROP_TEMP,
         POWER_SUPPLY_PROP_TEMP_AMBIENT,
         POWER_SUPPLY_PROP_MANUFACTURER,