BT: support rtl8761atv [1/1]

PD#OTT-2730

Problem:
    1.BT open fail;
    2.the problem is caused by Flow Control;

Solution:
    1.set host cts pull-down as default on the dts.

Verify:
    Galilei.

Change-Id: I42aa3bfa263d4330219268622bce94bfc24ced8a
Signed-off-by: Kuibao Zhang <kuibao.zhang@amlogic.com>

diff --git a/arch/arm/boot/dts/amlogic/mesong12b.dtsi b/arch/arm/boot/dts/amlogic/mesong12b.dtsi
index d8de340..c3ebcc9 100644 (file)
--- a/arch/arm/boot/dts/amlogic/mesong12b.dtsi
+++ b/arch/arm/boot/dts/amlogic/mesong12b.dtsi
@@ -2499,10 +2499,14 @@
                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/mesong12b.dtsi b/arch/arm64/boot/dts/amlogic/mesong12b.dtsi
index 7b760b7..880ffac 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/mesong12b.dtsi
+++ b/arch/arm64/boot/dts/amlogic/mesong12b.dtsi
@@ -2499,10 +2499,14 @@
                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 {