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authorFelix Fietkau <nbd@nbd.name>2019-03-03 15:10:00 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-05-04 09:21:12 +0200
commit63019ec07c615ebb1dc06f4a4bac758a180a0939 (patch)
tree8690506f2074663fdf7bf46812855dce1388d461 /drivers/net
parenta495f4c9afbf4dc5da8955ff26035eaeee510e2d (diff)
mt76: mt76x2: fix external LNA gain settings
[ Upstream commit 45a042e3026824a7e910db7a4dd38fef0540b902 ] Devices with external LNA need different values for AGC registers 8 and 9 Signed-off-by: Felix Fietkau <nbd@nbd.name> Signed-off-by: Sasha Levin (Microsoft) <sashal@kernel.org>
Diffstat (limited to 'drivers/net')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt76x2/phy.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2/phy.c b/drivers/net/wireless/mediatek/mt76/mt76x2/phy.c
index c9634a774705..11167b7af668 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2/phy.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2/phy.c
@@ -260,10 +260,15 @@ mt76x2_phy_set_gain_val(struct mt76x02_dev *dev)
gain_val[0] = dev->cal.agc_gain_cur[0] - dev->cal.agc_gain_adjust;
gain_val[1] = dev->cal.agc_gain_cur[1] - dev->cal.agc_gain_adjust;
- if (dev->mt76.chandef.width >= NL80211_CHAN_WIDTH_40)
+ val = 0x1836 << 16;
+ if (!mt76x2_has_ext_lna(dev) &&
+ dev->mt76.chandef.width >= NL80211_CHAN_WIDTH_40)
val = 0x1e42 << 16;
- else
- val = 0x1836 << 16;
+
+ if (mt76x2_has_ext_lna(dev) &&
+ dev->mt76.chandef.chan->band == NL80211_BAND_2GHZ &&
+ dev->mt76.chandef.width < NL80211_CHAN_WIDTH_40)
+ val = 0x0f36 << 16;
val |= 0xf8;