power: pm8921-bms: report FCC

Since the BMS can calculate FCC based on the charge cycles and age, use it
to report ENERGY_FULL property in the power supply framework.

CRs-Fixed: 304029
Signed-off-by: Abhijeet Dharmapurikar <adharmap@codeaurora.org>
diff --git a/drivers/power/pm8921-charger.c b/drivers/power/pm8921-charger.c
index 1b76401..62bdd58 100644
--- a/drivers/power/pm8921-charger.c
+++ b/drivers/power/pm8921-charger.c
@@ -737,6 +737,7 @@
 	POWER_SUPPLY_PROP_CAPACITY,
 	POWER_SUPPLY_PROP_CURRENT_NOW,
 	POWER_SUPPLY_PROP_TEMP,
+	POWER_SUPPLY_PROP_ENERGY_FULL,
 };
 
 static int get_prop_battery_mvolts(struct pm8921_chg_chip *chip)
@@ -778,6 +779,16 @@
 	}
 }
 
+static int get_prop_batt_fcc(struct pm8921_chg_chip *chip)
+{
+	int rc;
+
+	rc = pm8921_bms_get_fcc();
+	if (rc < 0)
+		pr_err("unable to get batt fcc rc = %d\n", rc);
+	return rc;
+}
+
 static int get_prop_batt_health(struct pm8921_chg_chip *chip)
 {
 	int temp;
@@ -893,6 +904,9 @@
 	case POWER_SUPPLY_PROP_TEMP:
 		val->intval = get_prop_batt_temp(chip);
 		break;
+	case POWER_SUPPLY_PROP_ENERGY_FULL:
+		val->intval = get_prop_batt_fcc(chip);
+		break;
 	default:
 		return -EINVAL;
 	}