| From 36dcb418d47fb74f7a5a6fb276ff2fee63f4533a Mon Sep 17 00:00:00 2001 |
| From: Shayne Chen <shayne.chen@mediatek.com> |
| Date: Wed, 30 Nov 2022 23:18:03 +0800 |
| Subject: [PATCH 1/7] wifi: mt76: mt7996: fix chainmask calculation in |
| mt7996_set_antenna() |
| |
| Fix per-band chainmask when restoring from the dev chainmask. |
| |
| Fixes: 98686cd21624 ("wifi: mt76: mt7996: add driver for MediaTek Wi-Fi 7 (802.11be) devices") |
| Signed-off-by: Shayne Chen <shayne.chen@mediatek.com> |
| Change-Id: Idf607cfdfb342fd283d2911231262f0f74994360 |
| --- |
| mt7996/main.c | 5 ++++- |
| 1 file changed, 4 insertions(+), 1 deletion(-) |
| |
| diff --git a/mt7996/main.c b/mt7996/main.c |
| index 4421cd5..c423b05 100644 |
| --- a/mt7996/main.c |
| +++ b/mt7996/main.c |
| @@ -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; |
| -- |
| 2.36.1 |
| |