rk312x UART0_SOUT UART0_SIN default pull down disable

 may case bt can't open problem

diff --git a/arch/arm/boot/dts/rk312x-pinctrl.dtsi b/arch/arm/boot/dts/rk312x-pinctrl.dtsi
index 55919bc001314fac7708c8cf1b2698f29d5316f3..bea2fe80cedc02021df19ab88e7d29f6971eda4e 100755 (executable)
--- a/arch/arm/boot/dts/rk312x-pinctrl.dtsi
+++ b/arch/arm/boot/dts/rk312x-pinctrl.dtsi
@@ -96,7 +96,7 @@
                        uart0_xfer: uart0-xfer {
                                rockchip,pins = <UART0_SIN>,
                                                <UART0_SOUT>;
-                               rockchip,pull = <VALUE_PULL_DEFAULT>;
+                               rockchip,pull = <VALUE_PULL_UPDOWN_DISABLE>;
                                
                                
                        };