From 70b4d641c1dac0a2733cd4b96c02f005de658c92 Mon Sep 17 00:00:00 2001
From: John Crispin <john@openwrt.org>
Date: Wed, 4 Feb 2015 06:11:01 +0000
Subject: [PATCH] ralink: remove VHT capabilities when not using 802.11ac
The mt76 driver might have some problem working with MT7602.
MT7602 should not have VHT capabilities . But the driver not identity properly.
Signed-off-by: wengbj <fl.service@t-firefly.com>
SVN-Revision: 44257
---
.../0001-mt7602-remove-vht-capabilities.patch | 46 +++++++++++++++++++
1 file changed, 46 insertions(+)
create mode 100644 package/kernel/mt76/patches/0001-mt7602-remove-vht-capabilities.patch
diff --git a/package/kernel/mt76/patches/0001-mt7602-remove-vht-capabilities.patch b/package/kernel/mt76/patches/0001-mt7602-remove-vht-capabilities.patch
new file mode 100644
index 0000000000..0a1f9c9862
--- /dev/null
+++ b/package/kernel/mt76/patches/0001-mt7602-remove-vht-capabilities.patch
@@ -0,0 +1,46 @@
+--- a/init.c
++++ b/init.c
+@@ -682,24 +682,27 @@ mt76_init_sband(struct mt76_dev *dev, st
+ ht_cap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K;
+ ht_cap->ampdu_density = IEEE80211_HT_MPDU_DENSITY_4;
+
+- vht_cap = &sband->vht_cap;
+- vht_cap->vht_supported = true;
++ if (dev->cap.has_5ghz)
++ {
++ vht_cap = &sband->vht_cap;
++ vht_cap->vht_supported = true;
+
+- mcs_map = (IEEE80211_VHT_MCS_SUPPORT_0_9 << (0 * 2)) |
+- (IEEE80211_VHT_MCS_SUPPORT_0_9 << (1 * 2)) |
+- (IEEE80211_VHT_MCS_NOT_SUPPORTED << (2 * 2)) |
+- (IEEE80211_VHT_MCS_NOT_SUPPORTED << (3 * 2)) |
+- (IEEE80211_VHT_MCS_NOT_SUPPORTED << (4 * 2)) |
+- (IEEE80211_VHT_MCS_NOT_SUPPORTED << (5 * 2)) |
+- (IEEE80211_VHT_MCS_NOT_SUPPORTED << (6 * 2)) |
+- (IEEE80211_VHT_MCS_NOT_SUPPORTED << (7 * 2));
++ mcs_map = (IEEE80211_VHT_MCS_SUPPORT_0_9 << (0 * 2)) |
++ (IEEE80211_VHT_MCS_SUPPORT_0_9 << (1 * 2)) |
++ (IEEE80211_VHT_MCS_NOT_SUPPORTED << (2 * 2)) |
++ (IEEE80211_VHT_MCS_NOT_SUPPORTED << (3 * 2)) |
++ (IEEE80211_VHT_MCS_NOT_SUPPORTED << (4 * 2)) |
++ (IEEE80211_VHT_MCS_NOT_SUPPORTED << (5 * 2)) |
++ (IEEE80211_VHT_MCS_NOT_SUPPORTED << (6 * 2)) |
++ (IEEE80211_VHT_MCS_NOT_SUPPORTED << (7 * 2));
+
+- vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
+- vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
+- vht_cap->cap = IEEE80211_VHT_CAP_RXLDPC |
+- IEEE80211_VHT_CAP_TXSTBC |
+- IEEE80211_VHT_CAP_RXSTBC_1 |
+- IEEE80211_VHT_CAP_SHORT_GI_80;
++ vht_cap->vht_mcs.rx_mcs_map = cpu_to_le16(mcs_map);
++ vht_cap->vht_mcs.tx_mcs_map = cpu_to_le16(mcs_map);
++ vht_cap->cap = IEEE80211_VHT_CAP_RXLDPC |
++ IEEE80211_VHT_CAP_TXSTBC |
++ IEEE80211_VHT_CAP_RXSTBC_1 |
++ IEEE80211_VHT_CAP_SHORT_GI_80;
++ }
+
+ dev->chandef.chan = &sband->channels[0];
+
--
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