arm64: dts: ti: k3-am64: Use phandle to stdout UART node

Using a phandle makes it clear which UART we are choosing without needing
to resolve through an alias first.

Especially useful for boards like the TI J721s2-EVM where the alias is
"serial2" but it actually resolves to the 8th UART instance(main_uart8).

Signed-off-by: Andrew Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20230601184933.358731-2-afd@ti.com
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
index 4fd5c39..e897fea 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am642-evm.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-evm.dts
@@ -17,7 +17,7 @@
        model = "Texas Instruments AM642 EVM";
 
        chosen {
-               stdout-path = "serial2:115200n8";
+               stdout-path = &main_uart0;
        };
 
        aliases {

diff --git a/arch/arm64/boot/dts/ti/k3-am642-sk.dts b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
index 44e18c8..78ae490 100644 (file)
--- a/arch/arm64/boot/dts/ti/k3-am642-sk.dts
+++ b/arch/arm64/boot/dts/ti/k3-am642-sk.dts
@@ -17,7 +17,7 @@
        model = "Texas Instruments AM642 SK";
 
        chosen {
-               stdout-path = "serial2:115200n8";
+               stdout-path = &main_uart0;
        };
 
        aliases {