wifi: rtw89: coex: Packet traffic arbitration hardware owner monitor

Because the difference of the hardware design, RTL8852C can not get the
PTA owner by the same method with RTL8852B, RTL8852A. Modify the get owner
API and related logic.
Signed-off-by: Ching-Te Ku <ku920601@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/20230106120844.17441-6-pkshih@realtek.com

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

@@ -4873,7 +4873,7 @@ void rtw89_btc_ntfy_init(struct rtw89_dev *rtwdev, u8 mode)
 	_write_scbd(rtwdev,
 		    BTC_WSCB_ACTIVE | BTC_WSCB_ON | BTC_WSCB_BTLOG, true);
 	_update_bt_scbd(rtwdev, true);
-	if (rtw89_mac_get_ctrl_path(rtwdev) && chip->chip_id == RTL8852A) {
+	if (rtw89_mac_get_ctrl_path(rtwdev)) {
 		rtw89_debug(rtwdev, RTW89_DBG_BTC,
 			    "[BTC], %s(): PTA owner warning!!\n",
 			    __func__);
@@ -7082,10 +7082,7 @@ static void _show_mreg(struct rtw89_dev *rtwdev, struct seq_file *m)
 
 	/* To avoid I/O if WL LPS or power-off  */
 	if (!wl->status.map.lps && !wl->status.map.rf_off) {
-		if (chip->chip_id == RTL8852A)
-			btc->dm.pta_owner = rtw89_mac_get_ctrl_path(rtwdev);
-		else if (chip->chip_id == RTL8852C)
-			btc->dm.pta_owner = 0;
+		btc->dm.pta_owner = rtw89_mac_get_ctrl_path(rtwdev);
 
 		_get_gnt(rtwdev, &gnt_cfg);
 		gnt = gnt_cfg.band[0];

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

@@ -4865,9 +4865,16 @@ EXPORT_SYMBOL(rtw89_mac_cfg_ctrl_path_v1);
 
 bool rtw89_mac_get_ctrl_path(struct rtw89_dev *rtwdev)
 {
-	u8 val = rtw89_read8(rtwdev, R_AX_SYS_SDIO_CTRL + 3);
+	const struct rtw89_chip_info *chip = rtwdev->chip;
+	u8 val = 0;
+
+	if (chip->chip_id == RTL8852C)
+		return false;
+	else if (chip->chip_id == RTL8852A || chip->chip_id == RTL8852B)
+		val = rtw89_read8_mask(rtwdev, R_AX_SYS_SDIO_CTRL + 3,
+				       B_AX_LTE_MUX_CTRL_PATH >> 24);
 
-	return FIELD_GET(B_AX_LTE_MUX_CTRL_PATH >> 24, val);
+	return !!val;
 }
 
 u16 rtw89_mac_get_plt_cnt(struct rtw89_dev *rtwdev, u8 band)