recipes-wifi/linux-mt76/files/patches/1032-wifi-mt76-mt7915-remove-BW160-support.patch

From 4d81cdd22da999d7101ed1e72ff3e3cbe04eeb34 Mon Sep 17 00:00:00 2001
From: MeiChia Chiu <meichia.chiu@mediatek.com>
Date: Wed, 24 May 2023 22:35:54 +0800
Subject: [PATCH 44/76] wifi: mt76: mt7915: remove BW160 support

Remove BW160 capability in mt7915.
---
 mt7915/init.c | 26 ++++++--------------------
 1 file changed, 6 insertions(+), 20 deletions(-)

diff --git a/mt7915/init.c b/mt7915/init.c
index 82fbec4..a44d3fa 100644
--- a/mt7915/init.c
+++ b/mt7915/init.c
@@ -438,11 +438,6 @@ mt7915_init_wiphy(struct mt7915_phy *phy)
 			vht_cap->cap |=
 				IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 |
 				IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK;
-
-			if (!dev->dbdc_support)
-				vht_cap->cap |=
-					IEEE80211_VHT_CAP_SHORT_GI_160 |
-					FIELD_PREP(IEEE80211_VHT_CAP_EXT_NSS_BW_MASK, 1);
 		} else {
 			phy->mt76->sband_5g.sband.ht_cap.ampdu_density =
 				IEEE80211_HT_MPDU_DENSITY_2;
@@ -898,13 +893,9 @@ mt7915_set_stream_he_txbf_caps(struct mt7915_phy *phy,
 	int sts = hweight8(phy->mt76->chainmask);
 	u8 c, sts_160 = sts;
 
-	/* Can do 1/2 of STS in 160Mhz mode for mt7915 */
-	if (is_mt7915(&dev->mt76)) {
-		if (!dev->dbdc_support)
-			sts_160 /= 2;
-		else
-			sts_160 = 0;
-	}
+	/* mt7915 doesn't support bw160 */
+	if (is_mt7915(&dev->mt76))
+		sts_160 = 0;
 
 #ifdef CONFIG_MAC80211_MESH
 	if (vif == NL80211_IFTYPE_MESH_POINT)
@@ -984,15 +975,10 @@ mt7915_init_he_caps(struct mt7915_phy *phy, enum nl80211_band band,
 	int i, idx = 0, nss = hweight8(phy->mt76->antenna_mask);
 	u16 mcs_map = 0;
 	u16 mcs_map_160 = 0;
-	u8 nss_160;
+	u8 nss_160 = nss;
 
-	if (!is_mt7915(&dev->mt76))
-		nss_160 = nss;
-	else if (!dev->dbdc_support)
-		/* Can do 1/2 of NSS streams in 160Mhz mode for mt7915 */
-		nss_160 = nss / 2;
-	else
-		/* Can't do 160MHz with mt7915 dbdc */
+	/* Can't do 160MHz with mt7915 */
+	if (is_mt7915(&dev->mt76))
 		nss_160 = 0;
 
 	for (i = 0; i < 8; i++) {
-- 
2.18.0