diff --git a/driver/charger/rt946x.c b/driver/charger/rt946x.c
index 2d0f15f90c..27b92abf43 100644
--- a/driver/charger/rt946x.c
+++ b/driver/charger/rt946x.c
@@ -63,6 +63,13 @@ enum rt946x_ilmtsel {
 	RT946X_ILMTSEL_LOWER_LEVEL, /* lower of above two */
 };
 
+enum rt946x_chg_stat {
+	RT946X_CHGSTAT_READY = 0,
+	RT946X_CHGSTAT_IN_PROGRESS,
+	RT946X_CHGSTAT_DONE,
+	RT946X_CHGSTAT_FAULT,
+};
+
 enum rt946x_adc_in_sel {
 	RT946X_ADC_VBUS_DIV5 = 1,
 	RT946X_ADC_VBUS_DIV2,
@@ -911,6 +918,18 @@ int rt946x_is_vbus_ready(void)
 	       0 : !!(val & RT946X_MASK_PWR_RDY);
 }
 
+int rt946x_is_charge_done(void)
+{
+	int val = 0;
+
+	if (rt946x_read8(RT946X_REG_CHGSTAT, &val))
+		return 0;
+
+	val = (val & RT946X_MASK_CHG_STAT) >> RT946X_SHIFT_CHG_STAT;
+
+	return val == RT946X_CHGSTAT_DONE;
+}
+
 int rt946x_cutoff_battery(void)
 {
 	return rt946x_set_bit(RT946X_REG_CHGCTRL2, RT946X_MASK_SHIP_MODE);
diff --git a/driver/charger/rt946x.h b/driver/charger/rt946x.h
index aff1c99928..208a8e80fe 100644
--- a/driver/charger/rt946x.h
+++ b/driver/charger/rt946x.h
@@ -315,6 +315,9 @@ int rt946x_enable_charger_boost(int en);
  */
 int rt946x_is_vbus_ready(void);
 
+/* Return 1 if rt946x triggers charge termination due to full charge. */
+int rt946x_is_charge_done(void);
+
 /*
  * Cut off the battery (force BATFET to turn off).
  * Return 0 if it succeeds.