wifi: rtw89: fix SER L1 might stop entering LPS issue

When SER L1 triggered, driver need to stop Rx and clear RTW89_FLAG_RUNNING
flag. If track_work check RTW89_FLAG_RUNNING simultaneously, it will check
failed and never queue track_work again, and LPS won't enter either.
Therefore, we cancel delayed work when enter SER L1, and queue delayed work
when leave SER L1.
Signed-off-by: Chih-Kang Chang <gary.chang@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/20230224082117.21241-1-pkshih@realtek.com

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

@@ -414,8 +414,11 @@ static void ser_idle_st_hdl(struct rtw89_ser *ser, u8 evt)
 
 static void ser_reset_trx_st_hdl(struct rtw89_ser *ser, u8 evt)
 {
+	struct rtw89_dev *rtwdev = container_of(ser, struct rtw89_dev, ser);
+
 	switch (evt) {
 	case SER_EV_STATE_IN:
+		cancel_delayed_work_sync(&rtwdev->track_work);
 		drv_stop_tx(ser);
 
 		if (hal_stop_dma(ser)) {
@@ -446,6 +449,8 @@ static void ser_reset_trx_st_hdl(struct rtw89_ser *ser, u8 evt)
 		hal_enable_dma(ser);
 		drv_resume_rx(ser);
 		drv_resume_tx(ser);
+		ieee80211_queue_delayed_work(rtwdev->hw, &rtwdev->track_work,
+					     RTW89_TRACK_WORK_PERIOD);
 		break;
 
 	default: