wifi: mt76: mt7915: disable VHT CAP SUPP CHAN WIDTH 160Mhz for mt7986

Fixes buggy 802.11ax on the Redmi AX6000 when connecting to some clients. Partially reverts https://patchwork.kernel.org/project/linux-wireless/patch/[email protected]/ Forum thread https://forum.openwrt.org/t/802-11ax-worse-than-802-11ac-with-mt76-driver/126466 Signed-off-by: Bryan Roessler <[email protected]>
openwrt · Apr 3, 2023 · 20d5a0b · 20d5a0b
1 parent 021ded3
commit 20d5a0b
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/mt7915/init.c b/mt7915/init.c
@@ -421,12 +421,13 @@ mt7915_init_wiphy(struct mt7915_phy *phy)
 		} else {
 			vht_cap->cap |=
 				IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
-				IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
+				IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
+				IEEE80211_VHT_CAP_SHORT_GI_160;
 
 			/* mt7916 dbdc with 2g 2x2 bw40 and 5g 2x2 bw160c */
-			vht_cap->cap |=
-				IEEE80211_VHT_CAP_SHORT_GI_160 |
-				IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
+			if (is_mt7916(&dev->mt76))
+				vht_cap->cap |=
+					IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ;
 		}
 
 		if (!is_mt7915(&dev->mt76) || !dev->dbdc_support)