arm64: dts: hikey: add label properties to UARTs

Add label properties to provide a way to identify UARTs based on their
board or connector name. This follows naming convention in 96boards CE
spec. Ports without external connections are not labelled.

Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 8d43a0fce522..818525197508 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
+++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
@@ -32,3 +32,10 @@
                 reg = <0x0 0x0 0x0 0x40000000>;
         };
 };
+
+&uart2 {
+        label = "LS-UART0";
+};
+&uart3 {
+        label = "LS-UART1";
+};