rtlwifi: btcoexist: Fix breakage of ant_sel for rtl8723be
authorLarry Finger <Larry.Finger@lwfinger.net>
Mon, 4 Sep 2017 17:51:33 +0000 (12:51 -0500)
committerKalle Valo <kvalo@codeaurora.org>
Thu, 7 Sep 2017 12:55:56 +0000 (15:55 +0300)
In commit bcd37f4a0831 ("rtlwifi: btcoex: 23b 2ant: let bt transmit when
hw initialisation done"), there is an additional error when the module
parameter ant_sel is used to select the auxilary antenna. The error is
that the antenna selection is not checked when writing the antenna
selection register.

Fixes: bcd37f4a0831 ("rtlwifi: btcoex: 23b 2ant: let bt transmit when hw initialisation done")
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Ping-Ke Shih <pkshih@realtek.com>
Cc: Yan-Hsuan Chuang <yhchuang@realtek.com>
Cc: Birming Chiu <birming@realtek.com>
Cc: Shaofu <shaofu@realtek.com>
Cc: Steven Ting <steventing@realtek.com>
Cc: Stable <stable@vger.kernel.org> # 4.12+
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtc8723b2ant.c

index 31965f0ef69de64f6f5189c7e1833af3e0f25d74..e8f07573aed96661a91112bfa04a256d6db6d9bb 100644 (file)
@@ -1183,7 +1183,10 @@ static void btc8723b2ant_set_ant_path(struct btc_coexist *btcoexist,
                }
 
                /* fixed internal switch S1->WiFi, S0->BT */
-               btcoexist->btc_write_4byte(btcoexist, 0x948, 0x0);
+               if (board_info->btdm_ant_pos == BTC_ANTENNA_AT_MAIN_PORT)
+                       btcoexist->btc_write_2byte(btcoexist, 0x948, 0x0);
+               else
+                       btcoexist->btc_write_2byte(btcoexist, 0x948, 0x280);
 
                switch (antpos_type) {
                case BTC_ANT_WIFI_AT_MAIN: