From 60b2ede9dd385f8191f5ef54c6ba87b0e35f501b Mon Sep 17 00:00:00 2001 From: Chia-Yuan Li Date: Mon, 4 Jul 2022 10:34:52 +0800 Subject: [PATCH] rtw89: 8852c: modify PCIE prebkf time Prebkf time is to inform generating tx command if remaining backoff time less than this setting value. It might cause SER if generating tx command early in security mode. Signed-off-by: Chia-Yuan Li Signed-off-by: Ping-Ke Shih Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/20220704023453.19935-6-pkshih@realtek.com --- drivers/net/wireless/realtek/rtw89/mac.c | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c index b90ab56..cc6e7e3 100644 --- a/drivers/net/wireless/realtek/rtw89/mac.c +++ b/drivers/net/wireless/realtek/rtw89/mac.c @@ -1747,6 +1747,7 @@ static int scheduler_init(struct rtw89_dev *rtwdev, u8 mac_idx) { u32 ret; u32 reg; + u32 val; ret = rtw89_mac_check_mac_en(rtwdev, mac_idx, RTW89_CMAC_SEL); if (ret) @@ -1764,7 +1765,16 @@ static int scheduler_init(struct rtw89_dev *rtwdev, u8 mac_idx) rtw89_write32_clr(rtwdev, reg, B_AX_BTCCA_EN); reg = rtw89_mac_reg_by_idx(R_AX_PREBKF_CFG_0, mac_idx); - rtw89_write32_mask(rtwdev, reg, B_AX_PREBKF_TIME_MASK, SCH_PREBKF_24US); + if (rtwdev->chip->chip_id == RTL8852C) { + val = rtw89_read32_mask(rtwdev, R_AX_SEC_ENG_CTRL, + B_AX_TX_PARTIAL_MODE); + if (!val) + rtw89_write32_mask(rtwdev, reg, B_AX_PREBKF_TIME_MASK, + SCH_PREBKF_24US); + } else { + rtw89_write32_mask(rtwdev, reg, B_AX_PREBKF_TIME_MASK, + SCH_PREBKF_24US); + } return 0; } -- 2.7.4