From: libo <bo.li@amlogic.com>
Date: Wed, 8 May 2019 09:51:51 +0000 (+0800)
Subject: wifi: pull-down uart_cts_a pin for realtek bt [4/4]
X-Git-Tag: hardkernel-4.9.236-104~910
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=c0ee2b9824af342e183bfb3d8b838635da611719;p=platform%2Fkernel%2Flinux-amlogic.git

wifi: pull-down uart_cts_a pin for realtek bt [4/4]

PD#SWPL-7373

Problem:
realtek bt not work

Solution:
pull-down uart_cts_a pin

Verify:
ampere

Change-Id: I14f57d28d081077d89c681e2ecc95a25f706c64c
Signed-off-by: libo <bo.li@amlogic.com>
---

diff --git a/arch/arm/boot/dts/amlogic/mesongxl.dtsi b/arch/arm/boot/dts/amlogic/mesongxl.dtsi
index e159aa6..82a9668 100644
--- a/arch/arm/boot/dts/amlogic/mesongxl.dtsi
+++ b/arch/arm/boot/dts/amlogic/mesongxl.dtsi
@@ -705,10 +705,15 @@
 		mux {
 			groups = "uart_tx_a",
 				"uart_rx_a",
-				"uart_cts_a",
 				"uart_rts_a";
 			function = "uart_a";
 		};
+
+		mux1 {
+			groups = "uart_cts_a";
+			function = "uart_a";
+			bias-pull-down;
+		};
 	};
 
 	b_uart_pins:b_uart {
diff --git a/arch/arm64/boot/dts/amlogic/mesongxl.dtsi b/arch/arm64/boot/dts/amlogic/mesongxl.dtsi
index 8c1a639..9e911c5 100644
--- a/arch/arm64/boot/dts/amlogic/mesongxl.dtsi
+++ b/arch/arm64/boot/dts/amlogic/mesongxl.dtsi
@@ -692,10 +692,15 @@
 		mux {
 			groups = "uart_tx_a",
 				"uart_rx_a",
-				"uart_cts_a",
 				"uart_rts_a";
 			function = "uart_a";
 		};
+
+		mux1 {
+			groups = "uart_cts_a";
+			function = "uart_a";
+			bias-pull-down;
+		};
 	};
 
 	b_uart_pins:b_uart {