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rtw88: fix TX secondary channel offset of 40M if current bw is 20M or 40M

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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@realtek.com>
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Ping-Ke Shih 2019-12-20 17:21:47 +08:00 committed by Kalle Valo
parent 35a68fa5f9
commit 73a2d0b834
1 changed files with 6 additions and 4 deletions
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10
drivers/net/wireless/realtek/rtw88/mac.c
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@ -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));