wifi: mt76: mt7996: init mpdu density cap

Init mpdu density based on the hardware capability to prevent rx drop.
Signed-off-by: Peter Chiu <chui-hao.chiu@mediatek.com>
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>

drivers/net/wireless/mediatek/mt76/mt7996/init.c

@@ -196,10 +196,13 @@ mt7996_init_wiphy(struct ieee80211_hw *hw)
 
 	hw->max_tx_fragments = 4;
 
-	if (phy->mt76->cap.has_2ghz)
+	if (phy->mt76->cap.has_2ghz) {
 		phy->mt76->sband_2g.sband.ht_cap.cap |=
 			IEEE80211_HT_CAP_LDPC_CODING |
 			IEEE80211_HT_CAP_MAX_AMSDU;
+		phy->mt76->sband_2g.sband.ht_cap.ampdu_density =
+			IEEE80211_HT_MPDU_DENSITY_2;
+	}
 
 	if (phy->mt76->cap.has_5ghz) {
 		phy->mt76->sband_5g.sband.ht_cap.cap |=
@@ -211,6 +214,8 @@ mt7996_init_wiphy(struct ieee80211_hw *hw)
 			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
 			IEEE80211_VHT_CAP_SHORT_GI_160 |
 			IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
+		phy->mt76->sband_5g.sband.ht_cap.ampdu_density =
+			IEEE80211_HT_MPDU_DENSITY_1;
 	}
 
 	mt76_set_stream_caps(phy->mt76, true);
@@ -689,7 +694,7 @@ mt7996_init_he_caps(struct mt7996_phy *phy, enum nl80211_band band,
 		u16 cap = IEEE80211_HE_6GHZ_CAP_TX_ANTPAT_CONS |
 			  IEEE80211_HE_6GHZ_CAP_RX_ANTPAT_CONS;
 
-		cap |= u16_encode_bits(IEEE80211_HT_MPDU_DENSITY_2,
+		cap |= u16_encode_bits(IEEE80211_HT_MPDU_DENSITY_0_5,
 				       IEEE80211_HE_6GHZ_CAP_MIN_MPDU_START) |
 		       u16_encode_bits(IEEE80211_VHT_MAX_AMPDU_1024K,
 				       IEEE80211_HE_6GHZ_CAP_MAX_AMPDU_LEN_EXP) |