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mt76: fix variable gain adjustment range 

The range should only be limited to 4 for really weak signals, for all
other gain settings the range is 16.

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Felix Fietkau 2018-06-21 11:17:58 +02:00 committed by Kalle Valo
parent fa967b5860
commit 8e31f0d35a
1 changed files with 1 additions and 1 deletions
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2
drivers/net/wireless/mediatek/mt76/mt76x2_phy.c
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@ -485,7 +485,7 @@ static void
mt76x2_phy_adjust_vga_gain(struct mt76x2_dev *dev) mt76x2_phy_adjust_vga_gain(struct mt76x2_dev *dev)
{ {
u32 false_cca; u32 false_cca;
u8 limit = dev->cal.low_gain > 1 ? 4 : 16; u8 limit = dev->cal.low_gain > 0 ? 16 : 4;
false_cca = FIELD_GET(MT_RX_STAT_1_CCA_ERRORS, mt76_rr(dev, MT_RX_STAT_1)); false_cca = FIELD_GET(MT_RX_STAT_1_CCA_ERRORS, mt76_rr(dev, MT_RX_STAT_1));
if (false_cca > 800 && dev->cal.agc_gain_adjust < limit) if (false_cca > 800 && dev->cal.agc_gain_adjust < limit)