rtw89: coex: set EN bit to PLT register

B_AX_PLT_EN is to enable polluted mechanism. If it is enabled and
gnt_bt = 1 while wlan TX, B_AX_BT_PLT_PKT_CNT counter will increase,
but TX counter to BB will not. Without this bit BTCoex mechanism might
have some problems.

Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220208082751.43553-1-pkshih@realtek.com

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

@@ -3442,7 +3442,7 @@ int rtw89_mac_cfg_gnt(struct rtw89_dev *rtwdev,
 int rtw89_mac_cfg_plt(struct rtw89_dev *rtwdev, struct rtw89_mac_ax_plt *plt)
 {
 	u32 reg;
-	u8 val;
+	u16 val;
 	int ret;
 
 	ret = rtw89_mac_check_mac_en(rtwdev, plt->band, RTW89_CMAC_SEL);
@@ -3457,8 +3457,9 @@ int rtw89_mac_cfg_plt(struct rtw89_dev *rtwdev, struct rtw89_mac_ax_plt *plt)
 	      (plt->rx & RTW89_MAC_AX_PLT_LTE_RX ? B_AX_RX_PLT_GNT_LTE_RX : 0) |
 	      (plt->rx & RTW89_MAC_AX_PLT_GNT_BT_TX ? B_AX_RX_PLT_GNT_BT_TX : 0) |
 	      (plt->rx & RTW89_MAC_AX_PLT_GNT_BT_RX ? B_AX_RX_PLT_GNT_BT_RX : 0) |
-	      (plt->rx & RTW89_MAC_AX_PLT_GNT_WL ? B_AX_RX_PLT_GNT_WL : 0);
-	rtw89_write8(rtwdev, reg, val);
+	      (plt->rx & RTW89_MAC_AX_PLT_GNT_WL ? B_AX_RX_PLT_GNT_WL : 0) |
+	      B_AX_PLT_EN;
+	rtw89_write16(rtwdev, reg, val);
 
 	return 0;
 }