wifi: rtw89: Fix TX fail with A2DP after scanning

mainline inclusion
from mainline-v6.13-rc1
category: bugfix

There might be some racing between BT and WiFi after scan. Since
one of the TX related register will be modified by both FW and
rtw89_set_channel() in driver, which could cause Tx fail. Reorder
the calling sequence to only notify coexistence mechanism after
rtw89_set_channel() is called, so that there are no concurrent
operations.

Fixes: 5f499ce ("wifi: rtw89: pause/proceed MCC for ROC and HW scan")
Signed-off-by: Po-Hao Huang <[email protected]>
Signed-off-by: Ping-Ke Shih <[email protected]>
Link: https://patch.msgid.link/[email protected]
(cherry picked from commit f16c40acd31901ad0ba2554b60e0e2b0c7b59cde)

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

@@ -6089,6 +6089,8 @@ void rtw89_hw_scan_complete(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif,
 	if (!vif)
 		return;
 
+	rtw89_chanctx_proceed(rtwdev);
+
 	rtw89_write32_mask(rtwdev,
 			   rtw89_mac_reg_by_idx(rtwdev, mac->rx_fltr, RTW89_MAC_0),
 			   B_AX_RX_FLTR_CFG_MASK,
@@ -6106,8 +6108,6 @@ void rtw89_hw_scan_complete(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif,
 	scan_info->last_chan_idx = 0;
 	scan_info->scanning_vif = NULL;
 	scan_info->abort = false;
-
-	rtw89_chanctx_proceed(rtwdev);
 }
 
 void rtw89_hw_scan_abort(struct rtw89_dev *rtwdev, struct ieee80211_vif *vif)