UART2 is exposed on the Pi connector of Pine64. Make a pinctrl node
available at the SoC level, to simplify enabling UART2 via DT overlay.

Signed-off-by: Andreas Färber <[email protected]>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi 
b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 1c64ea2d23f9..61d3a19659bf 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -285,6 +285,11 @@
                                pins = "PG8", "PG9";
                                function = "uart1";
                        };
+
+                       uart2_pins: uart2-pins {
+                               pins = "PB0", "PB1";
+                               function = "uart2";
+                       };
                };
 
                uart0: serial@1c28000 {
-- 
2.10.2

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