From 0be638f326c2015ae9406f4238d9bc54b5b7a584 Mon Sep 17 00:00:00 2001
From: Canfeng Zhuang <canfeng.zhuang@oss.qualcomm.com>
Date: Fri, 27 Mar 2026 16:31:00 +0800
Subject: [PATCH] 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>
---
 arch/arm64/boot/dts/qcom/lemans-evk.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/lemans-evk.dts b/arch/arm64/boot/dts/qcom/lemans-evk.dts
index a1ef4eba2a20..c665db6a4595 100644
--- a/arch/arm64/boot/dts/qcom/lemans-evk.dts
+++ b/arch/arm64/boot/dts/qcom/lemans-evk.dts
@@ -21,6 +21,7 @@ aliases {
 		ethernet0 = &ethernet0;
 		mmc1 = &sdhc;
 		serial0 = &uart10;
+		serial2 = &uart0;
 	};
 
 	dmic: audio-codec-0 {
@@ -950,6 +951,10 @@ usb_id: usb-id-state {
 	};
 };
 
+&uart0 {
+	status = "okay";
+};
+
 &uart10 {
 	compatible = "qcom,geni-debug-uart";
 	pinctrl-0 = <&qup_uart10_default>;