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wifi: mt76: mt7996: fix chainmask calculation in mt7996_set_antenna()

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Fix per-band chainmask when restoring from the dev chainmask.

Fixes: 98686cd216 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices")
Signed-off-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Shayne Chen
2022-12-23 18:13:45 +08:00
committed by Felix Fietkau
parent 67fc7a304b
commit eb1fdb9f5a
1 changed files with 4 additions and 1 deletions
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5
drivers/net/wireless/mediatek/mt76/mt7996/main.c
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@@ -880,7 +880,10 @@ mt7996_set_antenna(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant)
phy->mt76->antenna_mask = tx_ant;
/* restore to the origin chainmask which might have auxiliary path */
if (hweight8(tx_ant) == max_nss)
if (hweight8(tx_ant) == max_nss && band_idx < MT_BAND2)
phy->mt76->chainmask = ((dev->chainmask >> shift) &
(BIT(dev->chainshift[band_idx + 1] - shift) - 1)) << shift;
else if (hweight8(tx_ant) == max_nss)
phy->mt76->chainmask = (dev->chainmask >> shift) << shift;
else
phy->mt76->chainmask = tx_ant << shift;