mt76x2: increase OFDM SIFS time

Fixes throughput issues in combination with LDPC

Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

1 files changed, 1 insertions, 8 deletions

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x2_phy.c b/drivers/net/wireless/mediatek/mt76/mt76x2_phy.c
index 126497172284..fe3a4b6a19cc 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x2_phy.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x2_phy.c
@@ -325,8 +325,7 @@ mt76x2_configure_tx_delay(struct mt76x2_dev *dev, enum nl80211_band band, u8 bw)
         mt76_wr(dev, MT_TX_SW_CFG0, cfg0);
         mt76_wr(dev, MT_TX_SW_CFG1, cfg1);
 
-        mt76_rmw_field(dev, MT_XIFS_TIME_CFG, MT_XIFS_TIME_CFG_CCK_SIFS,
-                       13 + (bw ? 1 : 0));
+        mt76_rmw_field(dev, MT_XIFS_TIME_CFG, MT_XIFS_TIME_CFG_OFDM_SIFS, 15);
 }
 
 static void
@@ -559,7 +558,6 @@ int mt76x2_phy_set_channel(struct mt76x2_dev *dev,
         u8 bw, bw_index;
         int freq, freq1;
         int ret;
-        u8 sifs = 13;
 
         dev->cal.channel_cal_done = false;
         freq = chandef->chan->center_freq;
@@ -611,11 +609,6 @@ int mt76x2_phy_set_channel(struct mt76x2_dev *dev,
                   MT_EXT_CCA_CFG_CCA_MASK),
                  ext_cca_chan[ch_group_index]);
 
-        if (chandef->width >= NL80211_CHAN_WIDTH_40)
-                sifs++;
-
-        mt76_rmw_field(dev, MT_XIFS_TIME_CFG, MT_XIFS_TIME_CFG_OFDM_SIFS, sifs);
-
         ret = mt76x2_mcu_set_channel(dev, channel, bw, bw_index, scan);
         if (ret)
                 return ret;