wifi: rtw89: call tx_wake notify for 8852c in deep ps mode

8852c transmits packets with slow response in deep ps mode,
and lead to low throughput. We need to call tx_wake for
each pakcet to trigger firmware wake earlier to avoid it.

Signed-off-by: Chin-Yen Lee <timlee@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/20220908051257.25353-8-pkshih@realtek.com

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

@@ -768,13 +768,16 @@ static void
 rtw89_core_tx_wake(struct rtw89_dev *rtwdev,
 		   struct rtw89_core_tx_request *tx_req)
 {
+	const struct rtw89_chip_info *chip = rtwdev->chip;
+
 	if (!RTW89_CHK_FW_FEATURE(TX_WAKE, &rtwdev->fw))
 		return;
 
 	if (!test_bit(RTW89_FLAG_LOW_POWER_MODE, rtwdev->flags))
 		return;
 
-	if (tx_req->tx_type != RTW89_CORE_TX_TYPE_MGMT)
+	if (chip->chip_id != RTL8852C &&
+	    tx_req->tx_type != RTW89_CORE_TX_TYPE_MGMT)
 		return;
 
 	rtw89_mac_notify_wake(rtwdev);

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

@@ -226,6 +226,7 @@ static const struct __fw_feat_cfg fw_feat_tbl[] = {
 	__CFG_FW_FEAT(RTL8852A, ge, 0, 13, 35, 0, TX_WAKE),
 	__CFG_FW_FEAT(RTL8852A, ge, 0, 13, 36, 0, CRASH_TRIGGER),
 	__CFG_FW_FEAT(RTL8852C, le, 0, 27, 33, 0, NO_DEEP_PS),
+	__CFG_FW_FEAT(RTL8852C, ge, 0, 27, 34, 0, TX_WAKE),
 };
 
 static void rtw89_fw_recognize_features(struct rtw89_dev *rtwdev)