From: Canfeng Zhuang <canfeng.zhuang@oss.qualcomm.com>
Date: Fri, 27 Mar 2026 08:31:00 +0000 (+0800)
Subject: arm64: dts: qcom: lemans-evk: enable UART0 for robot expansion board
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0be638f326c2015ae9406f4238d9bc54b5b7a584;p=thirdparty%2Flinux.git

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 a1ef4eba2a20c..c665db6a4595c 100644
--- 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>;