diff options
| author | Bitterblue Smith <rtl8821cerfe2@gmail.com> | 2025-11-20 17:10:01 +0300 |
|---|---|---|
| committer | Ping-Ke Shih <pkshih@realtek.com> | 2025-11-21 08:32:55 +0300 |
| commit | 5511ba3de434892e5ef3594d6eabbd12b1629356 (patch) | |
| tree | ca22fe7536b4ba62ebe10997286d35cbbd4702e9 | |
| parent | 2a2aae3655343b753dfef86b341be99f7273f2ba (diff) | |
| download | linux-5511ba3de434892e5ef3594d6eabbd12b1629356.tar.xz | |
wifi: rtl8xxxu: Fix HT40 channel config for RTL8192CU, RTL8723AU
Flip the response rate subchannel. It was backwards, causing low
speeds when using 40 MHz channel width. "iw dev ... station dump"
showed a low RX rate, 11M or less.
Also fix the channel width field of RF6052_REG_MODE_AG.
Tested only with RTL8192CU, but these settings are identical for
RTL8723AU.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Reviewed-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/1f46571d-855b-43e1-8bfc-abacceb96043@gmail.com
| -rw-r--r-- | drivers/net/wireless/realtek/rtl8xxxu/core.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/core.c b/drivers/net/wireless/realtek/rtl8xxxu/core.c index d82cb7714314..be8ee6c30034 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/core.c @@ -1252,7 +1252,7 @@ void rtl8xxxu_gen1_config_channel(struct ieee80211_hw *hw) opmode &= ~BW_OPMODE_20MHZ; rtl8xxxu_write8(priv, REG_BW_OPMODE, opmode); rsr &= ~RSR_RSC_BANDWIDTH_40M; - if (sec_ch_above) + if (!sec_ch_above) rsr |= RSR_RSC_UPPER_SUB_CHANNEL; else rsr |= RSR_RSC_LOWER_SUB_CHANNEL; @@ -1321,9 +1321,8 @@ void rtl8xxxu_gen1_config_channel(struct ieee80211_hw *hw) for (i = RF_A; i < priv->rf_paths; i++) { val32 = rtl8xxxu_read_rfreg(priv, i, RF6052_REG_MODE_AG); - if (hw->conf.chandef.width == NL80211_CHAN_WIDTH_40) - val32 &= ~MODE_AG_CHANNEL_20MHZ; - else + val32 &= ~MODE_AG_BW_MASK; + if (hw->conf.chandef.width != NL80211_CHAN_WIDTH_40) val32 |= MODE_AG_CHANNEL_20MHZ; rtl8xxxu_write_rfreg(priv, i, RF6052_REG_MODE_AG, val32); } |