rtw89: 8852c: adjust mactxen delay of mac/phy interface

mac_txen time is to inform TMAC tx after rx air end.
Modify 8852c value to meet TB SIFS time.
Signed-off-by: Chia-Yuan Li <leo.li@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220704023453.19935-7-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/mac.c

@@ -1754,7 +1754,12 @@ static int scheduler_init(struct rtw89_dev *rtwdev, u8 mac_idx)
 		return ret;
 
 	reg = rtw89_mac_reg_by_idx(R_AX_PREBKF_CFG_1, mac_idx);
-	rtw89_write32_mask(rtwdev, reg, B_AX_SIFS_MACTXEN_T1_MASK, SIFS_MACTXEN_T1);
+	if (rtwdev->chip->chip_id == RTL8852C)
+		rtw89_write32_mask(rtwdev, reg, B_AX_SIFS_MACTXEN_T1_MASK,
+				   SIFS_MACTXEN_T1_V1);
+	else
+		rtw89_write32_mask(rtwdev, reg, B_AX_SIFS_MACTXEN_T1_MASK,
+				   SIFS_MACTXEN_T1);
 
 	if (rtwdev->chip->chip_id == RTL8852B) {
 		reg = rtw89_mac_reg_by_idx(R_AX_SCH_EXT_CTRL, mac_idx);

drivers/net/wireless/realtek/rtw89/reg.h

@@ -1877,6 +1877,7 @@
 #define B_AX_SIFS_TIMEOUT_T2_MASK GENMASK(14, 8)
 #define B_AX_SIFS_MACTXEN_T1_MASK GENMASK(6, 0)
 #define SIFS_MACTXEN_T1 0x47
+#define SIFS_MACTXEN_T1_V1 0x41
 
 #define R_AX_CCA_CFG_0 0xC340
 #define R_AX_CCA_CFG_0_C1 0xE340