power: qpnp-smb2: Implement battery charging_enabled node

Change-Id: Id08c169f0c507390eab070d1ae77bfb992b50b81

Author: mikeNG

drivers/power/supply/qcom/qpnp-smb2.c

@@ -996,6 +996,7 @@ static int smb2_init_dc_psy(struct smb2 *chip)
  *************************/
 
 static enum power_supply_property smb2_batt_props[] = {
+	POWER_SUPPLY_PROP_CHARGING_ENABLED,
 	POWER_SUPPLY_PROP_INPUT_SUSPEND,
 	POWER_SUPPLY_PROP_STATUS,
 	POWER_SUPPLY_PROP_HEALTH,
@@ -1048,6 +1049,9 @@ static int smb2_batt_get_prop(struct power_supply *psy,
 	case POWER_SUPPLY_PROP_PRESENT:
 		rc = smblib_get_prop_batt_present(chg, val);
 		break;
+	case POWER_SUPPLY_PROP_CHARGING_ENABLED:
+		val->intval = !get_effective_result(chg->chg_disable_votable);
+		break;
 	case POWER_SUPPLY_PROP_INPUT_SUSPEND:
 		rc = smblib_get_prop_input_suspend(chg, val);
 		break;
@@ -1169,6 +1173,9 @@ static int smb2_batt_set_prop(struct power_supply *psy,
 	struct smb_charger *chg = power_supply_get_drvdata(psy);
 
 	switch (prop) {
+	case POWER_SUPPLY_PROP_CHARGING_ENABLED:
+		vote(chg->chg_disable_votable, USER_VOTER, !!!val->intval, 0);
+		break;
 	case POWER_SUPPLY_PROP_INPUT_SUSPEND:
 		rc = smblib_set_prop_input_suspend(chg, val);
 		break;
@@ -1246,6 +1253,7 @@ static int smb2_batt_prop_is_writeable(struct power_supply *psy,
 		enum power_supply_property psp)
 {
 	switch (psp) {
+	case POWER_SUPPLY_PROP_CHARGING_ENABLED:
 	case POWER_SUPPLY_PROP_INPUT_SUSPEND:
 	case POWER_SUPPLY_PROP_SYSTEM_TEMP_LEVEL:
 	case POWER_SUPPLY_PROP_CAPACITY: