diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index f945705561200..f323e1c1989f1 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -509,6 +509,12 @@ static int igb_ptp_feature_enable_82580(struct ptp_clock_info *ptp,
 					PTP_STRICT_FLAGS))
 			return -EOPNOTSUPP;
 
+		/* Both the rising and falling edge are timestamped */
+		if (rq->extts.flags & PTP_STRICT_FLAGS &&
+		    (rq->extts.flags & PTP_ENABLE_FEATURE) &&
+		    (rq->extts.flags & PTP_EXTTS_EDGES) != PTP_EXTTS_EDGES)
+			return -EOPNOTSUPP;
+
 		if (on) {
 			pin = ptp_find_pin(igb->ptp_clock, PTP_PF_EXTTS,
 					   rq->extts.index);