arm64: dts: qcom: lemans-evk: enable UART0 for robot expansion board

The lemans-evk mezzanine connector supports a robot expansion board that
requires UART0, which is currently disabled. This prevents the expansion
board from exchanging data and control commands.

Enable UART0 and assign the serial2 alias to provide stable device
enumeration for the expansion board.

Signed-off-by: Canfeng Zhuang <canfeng.zhuang@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260327083101.1343613-2-canfeng.zhuang@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index a1ef4eba2a20c627dfe1035dd532f80b145e7f20..c665db6a4595cef441f4bd5ba21fe133652b97c6 100644 (file)
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -21,6 +21,7 @@
                ethernet0 = &ethernet0;
                mmc1 = &sdhc;
                serial0 = &uart10;
+               serial2 = &uart0;
        };
 
        dmic: audio-codec-0 {
@@ -950,6 +951,10 @@
        };
 };
 
+&uart0 {
+       status = "okay";
+};
+
 &uart10 {
        compatible = "qcom,geni-debug-uart";
        pinctrl-0 = <&qup_uart10_default>;