[PATCH v2] arm64: tegra: Enable additional UART for Jetson AGX Orin

[Kartik]

From: kartik <kkartik@xxxxxxxxxx>

On Jetson AGX Orin, additional UART (UART-A) is available on 40-pin
header.

Enable UART-A for Jetson AGX Orin and change the compatible string to
"nvidia,tegra194-hsuart". This enables serial-tegra driver, which
supports HW flow control and is the preffered driver for higher
baud rates.

Signed-off-by: kartik <kkartik@xxxxxxxxxx>
---
v2 -> v1: updated commit message
---
 arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
index efbbb87..4eda238 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
+++ b/arch/arm64/boot/dts/nvidia/tegra234-p3737-0000+p3701-0000.dts
@@ -11,6 +11,7 @@
 	aliases {
 		mmc3 = "/bus@0/mmc@3460000";
 		serial0 = &tcu;
+		serial1 = &uarta;
 	};
 
 	chosen {
@@ -18,6 +19,13 @@
 		stdout-path = "serial0:115200n8";
 	};
 
+	bus@0 {
+		serial@3100000 {
+			compatible = "nvidia,tegra194-hsuart";
+			status = "okay";
+		};
+	};
+
 	serial {
 		status = "okay";
 	};
-- 
2.7.4