diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index c1659d07951352243bd2769589fc8f8d24717653..9c8e0d84c56bcc4c57744b8bd81a8046928f271e 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -2589,6 +2589,14 @@ int ath9k_hw_fill_cap_info(struct ath_hw *ah)
 	}
 
 
+	if (AR_SREV_9280_20_OR_LATER(ah)) {
+		pCap->hw_caps |= ATH9K_HW_WOW_DEVICE_CAPABLE |
+				 ATH9K_HW_WOW_PATTERN_MATCH_EXACT;
+
+		if (AR_SREV_9280(ah))
+			pCap->hw_caps |= ATH9K_HW_WOW_PATTERN_MATCH_DWORD;
+	}
+
 	return 0;
 }