[PATCH 04/12] ARM: dts: sun8i: Add pin muxing option for R_UART

[Chen-Yu Tsai <wens@csie.org>]

R_UART is available on extra pads on certain tablets, which makes it
ideal for use as a console. Here we add the pins for it.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
---
 arch/arm/boot/dts/sun8i-a23.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/sun8i-a23.dtsi b/arch/arm/boot/dts/sun8i-a23.dtsi
index 0d6bb6d..25bae1f 100644
--- a/arch/arm/boot/dts/sun8i-a23.dtsi
+++ b/arch/arm/boot/dts/sun8i-a23.dtsi
@@ -372,6 +372,13 @@
 			#address-cells = <1>;
 			#size-cells = <0>;
 			#gpio-cells = <3>;
+
+			r_uart_pins_a: r_uart@0 {
+				allwinner,pins = "PL2", "PL3";
+				allwinner,function = "s_uart";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
 		};
 	};
 };
-- 
2.1.0