From: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
TX secondary channel offset is valid only if current bandwidth is 80M,
otherwise leave this value as zero. The wrong value of txsc40 causes
MAC unpredictable behavior.
Signed-off-by: Ping-Ke Shih <pkshih@xxxxxxxxxxx>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@xxxxxxxxxxx>
---
drivers/net/wireless/realtek/rtw88/mac.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/realtek/rtw88/mac.c b/drivers/net/wireless/realtek/rtw88/mac.c
index 507970387b2a..ed9bb427ba60 100644
--- a/drivers/net/wireless/realtek/rtw88/mac.c
+++ b/drivers/net/wireless/realtek/rtw88/mac.c
@@ -16,10 +16,12 @@ void rtw_set_channel_mac(struct rtw_dev *rtwdev, u8 channel, u8 bw,
u8 value8;
txsc20 = primary_ch_idx;
- if (txsc20 == 1 || txsc20 == 3)
- txsc40 = 9;
- else
- txsc40 = 10;
+ if (bw == RTW_CHANNEL_WIDTH_80) {
+ if (txsc20 == 1 || txsc20 == 3)
+ txsc40 = 9;
+ else
+ txsc40 = 10;
+ }
rtw_write8(rtwdev, REG_DATA_SC,
BIT_TXSC_20M(txsc20) | BIT_TXSC_40M(txsc40));
--
2.17.1
