rtlwifi: btcoex: 21a 1ant: set antenna control path for PTA

Set antenna control path if PTA is in control of the packet path of wifi
and bt. If wifi is turned off, tell the PTA about it.
Signed-off-by: Yan-Hsuan Chuang <yhchuang@realtek.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Pkshih <pkshih@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8821a1ant.c

@@ -1011,11 +1011,18 @@ static void btc8821a1ant_set_ant_path(struct btc_coexist *btcoexist,
 		u4_tmp &= ~BIT23;
 		u4_tmp &= ~BIT24;
 		btcoexist->btc_write_4byte(btcoexist, 0x4c, u4_tmp);
+
+		/* 0x765 = 0x18 */
+		btcoexist->btc_write_1byte_bitmask(btcoexist, 0x765, 0x18, 0x3);
+	} else {
+		/* 0x765 = 0x0 */
+		btcoexist->btc_write_1byte_bitmask(btcoexist, 0x765, 0x18, 0x0);
 	}
 
 	/* ext switch setting */
 	switch (ant_pos_type) {
 	case BTC_ANT_PATH_WIFI:
+		btcoexist->btc_write_1byte(btcoexist, 0xcb4, 0x77);
 		if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT)
 			btcoexist->btc_write_1byte_bitmask(btcoexist, 0xcb7,
 							   0x30, 0x1);
@@ -1024,6 +1031,7 @@ static void btc8821a1ant_set_ant_path(struct btc_coexist *btcoexist,
 							   0x30, 0x2);
 		break;
 	case BTC_ANT_PATH_BT:
+		btcoexist->btc_write_1byte(btcoexist, 0xcb4, 0x77);
 		if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT)
 			btcoexist->btc_write_1byte_bitmask(btcoexist, 0xcb7,
 							   0x30, 0x2);
@@ -1033,6 +1041,7 @@ static void btc8821a1ant_set_ant_path(struct btc_coexist *btcoexist,
 		break;
 	default:
 	case BTC_ANT_PATH_PTA:
+		btcoexist->btc_write_1byte(btcoexist, 0xcb4, 0x66);
 		if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT)
 			btcoexist->btc_write_1byte_bitmask(btcoexist, 0xcb7,
 							   0x30, 0x1);