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wifi: mt76: mt76x02: fix MT76x0 external LNA gain handling

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On MT76x0, LNA gain should be applied for both external and internal LNA.
On MT76x2, LNA gain should be treated as 0 for external LNA.
Move the LNA type based logic to mt76x2 in order to fix mt76x0.

Fixes: 2daa67588f34 ("mt76x0: unify lna_gain parsing")
Reported-by: Shiji Yang <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2023-09-19 21:48:01 +02:00
parent 2afc7285f7
commit 890ae4d717
2 changed files with 11 additions and 9 deletions
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mt76x2/eeprom.c
+11 -2
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@@ -256,7 +256,8 @@ void mt76x2_read_rx_gain(struct mt76x02_dev *dev)
struct ieee80211_channel *chan = dev->mphy.chandef.chan;
int channel = chan->hw_value;
s8 lna_5g[3], lna_2g;
u8 lna;
bool use_lna;
u8 lna = 0;
u16 val;
if (chan->band == NL80211_BAND_2GHZ)
@@ -275,7 +276,15 @@ void mt76x2_read_rx_gain(struct mt76x02_dev *dev)
dev->cal.rx.mcu_gain |= (lna_5g[1] & 0xff) << 16;
dev->cal.rx.mcu_gain |= (lna_5g[2] & 0xff) << 24;
lna = mt76x02_get_lna_gain(dev, &lna_2g, lna_5g, chan);
val = mt76x02_eeprom_get(dev, MT_EE_NIC_CONF_1);
if (chan->band == NL80211_BAND_2GHZ)
use_lna = !(val & MT_EE_NIC_CONF_1_LNA_EXT_2G);
else
use_lna = !(val & MT_EE_NIC_CONF_1_LNA_EXT_5G);
if (use_lna)
lna = mt76x02_get_lna_gain(dev, &lna_2g, lna_5g, chan);
dev->cal.rx.lna_gain = mt76x02_sign_extend(lna, 8);
}
EXPORT_SYMBOL_GPL(mt76x2_read_rx_gain);