olpc_battery: Add support for CURRENT_NOW and VOLTAGE_NOW

{CURRENT,VOLTAGE}_AVG are actually {CURRENT,VOLTAGE}_NOW (the EC code
directly passes through the value from the gas gauge instead of the
internally used average). We retain {CURRENT,VOLTAGE}_AVG as an alias
for compatibility reasons, it will be removed later.

Signed-off-by: Sascha Silbe <sascha-pgp@silbe.org>
[ pgf@laptop.org: added VOLTAGE_NOW, aliased to VOLTAGE_AVG ]
Signed-off-by: Paul Fox <pgf@laptop.org>
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>

drivers/power/olpc_battery.c

@@ -333,13 +333,15 @@ static int olpc_bat_get_property(struct power_supply *psy,
 			return ret;
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
+	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
 		ret = olpc_ec_cmd(EC_BAT_VOLTAGE, NULL, 0, (void *)&ec_word, 2);
 		if (ret)
 			return ret;
 
 		val->intval = (s16)be16_to_cpu(ec_word) * 9760L / 32;
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_AVG:
+	case POWER_SUPPLY_PROP_CURRENT_NOW:
 		ret = olpc_ec_cmd(EC_BAT_CURRENT, NULL, 0, (void *)&ec_word, 2);
 		if (ret)
 			return ret;
@@ -414,7 +416,9 @@ static enum power_supply_property olpc_xo1_bat_props[] = {
 	POWER_SUPPLY_PROP_HEALTH,
 	POWER_SUPPLY_PROP_TECHNOLOGY,
 	POWER_SUPPLY_PROP_VOLTAGE_AVG,
+	POWER_SUPPLY_PROP_VOLTAGE_NOW,
 	POWER_SUPPLY_PROP_CURRENT_AVG,
+	POWER_SUPPLY_PROP_CURRENT_NOW,
 	POWER_SUPPLY_PROP_CAPACITY,
 	POWER_SUPPLY_PROP_CAPACITY_LEVEL,
 	POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN,