Upgrade to 4.4.50-rt62

The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it
to 4.4.50-rt62.
The command to achieve it is:
a) Clone a git repo from
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git

b) Get the diff between this two changesets:
git diff 640eca2901f3435e616157b11379d3223a44b391
705619beeea1b0b48219a683fd1a901a86fdaf5e

where the two commits are:
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
640eca2901f3435e616157b11379d3223a44b391
640eca2901f3 v4.4.6-rt14
localversion-rt
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
705619beeea1b0b48219a683fd1a901a86fdaf5e
705619beeea1 Linux 4.4.50-rt62
localversion-rt

c) One patch has been backported thus revert the patch before applying.

 filterdiff -p1 -x scripts/package/Makefile
~/tmp/v4.4.6-rt14-4.4.50-rt62.diff  |patch -p1 --dry-run

Upstream status: backport

Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>

1 files changed, 26 insertions, 1 deletions

diff --git a/kernel/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c b/kernel/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
index b2791c893..babd1490f 100644
--- a/kernel/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
+++ b/kernel/drivers/net/wireless/realtek/rtlwifi/btcoexist/halbtcoutsrc.c
@@ -965,13 +965,38 @@ void exhalbtc_set_chip_type(u8 chip_type)
 	}
 }
 
-void exhalbtc_set_ant_num(u8 type, u8 ant_num)
+void exhalbtc_set_ant_num(struct rtl_priv *rtlpriv, u8 type, u8 ant_num)
 {
 	if (BT_COEX_ANT_TYPE_PG == type) {
 		gl_bt_coexist.board_info.pg_ant_num = ant_num;
 		gl_bt_coexist.board_info.btdm_ant_num = ant_num;
+		/* The antenna position:
+		 * Main (default) or Aux for pgAntNum=2 && btdmAntNum =1.
+		 * The antenna position should be determined by
+		 * auto-detect mechanism.
+		 * The following is assumed to main,
+		 * and those must be modified
+		 * if y auto-detect mechanism is ready
+		 */
+		if ((gl_bt_coexist.board_info.pg_ant_num == 2) &&
+		    (gl_bt_coexist.board_info.btdm_ant_num == 1))
+			gl_bt_coexist.board_info.btdm_ant_pos =
+						       BTC_ANTENNA_AT_MAIN_PORT;
+		else
+			gl_bt_coexist.board_info.btdm_ant_pos =
+						       BTC_ANTENNA_AT_MAIN_PORT;
 	} else if (BT_COEX_ANT_TYPE_ANTDIV == type) {
 		gl_bt_coexist.board_info.btdm_ant_num = ant_num;
+		gl_bt_coexist.board_info.btdm_ant_pos =
+						       BTC_ANTENNA_AT_MAIN_PORT;
+	} else if (type == BT_COEX_ANT_TYPE_DETECTED) {
+		gl_bt_coexist.board_info.btdm_ant_num = ant_num;
+		if (rtlpriv->cfg->mod_params->ant_sel == 1)
+			gl_bt_coexist.board_info.btdm_ant_pos =
+				BTC_ANTENNA_AT_AUX_PORT;
+		else
+			gl_bt_coexist.board_info.btdm_ant_pos =
+				BTC_ANTENNA_AT_MAIN_PORT;
 	}
 }