[PATCH rtw-next 11/12] wifi: rtw89: ser: Wi-Fi 7 reset HALT C2H after reading it

[Ping-Ke Shih <pkshih@realtek.com>]

From: Zong-Zhe Yang <kevin_yang@realtek.com>

When a SER (system error recovery) interrupt happens, driver reads HALT C2H
register to get the error status via MAC. For Wi-Fi 7 chipset, driver needs
to reset HALT C2H register after reading it to make FW aware that.

Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
---
 drivers/net/wireless/realtek/rtw89/mac.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/realtek/rtw89/mac.c b/drivers/net/wireless/realtek/rtw89/mac.c
index 4d507eccaa00..243cc02ad24e 100644
--- a/drivers/net/wireless/realtek/rtw89/mac.c
+++ b/drivers/net/wireless/realtek/rtw89/mac.c
@@ -814,6 +814,7 @@ static bool rtw89_mac_suppress_log(struct rtw89_dev *rtwdev, u32 err)
 u32 rtw89_mac_get_err_status(struct rtw89_dev *rtwdev)
 {
 	const struct rtw89_mac_gen_def *mac = rtwdev->chip->mac_def;
+	const struct rtw89_chip_info *chip = rtwdev->chip;
 	u32 err, err_scnr;
 	int ret;
 
@@ -836,11 +837,15 @@ u32 rtw89_mac_get_err_status(struct rtw89_dev *rtwdev)
 		err = MAC_AX_ERR_RXI300;
 
 	if (rtw89_mac_suppress_log(rtwdev, err))
-		return err;
+		goto bottom;
 
 	rtw89_fw_st_dbg_dump(rtwdev);
 	mac->dump_err_status(rtwdev, err);
 
+bottom:
+	if (chip->chip_gen != RTW89_CHIP_AX)
+		rtw89_write32(rtwdev, R_AX_HALT_C2H, 0);
+
 	return err;
 }
 EXPORT_SYMBOL(rtw89_mac_get_err_status);
-- 
2.25.1