From: Canfeng Zhuang <canfeng.zhuang@oss.qualcomm.com>
Date: Fri, 27 Mar 2026 08:31:01 +0000 (+0800)
Subject: arm64: dts: qcom: monaco-evk: enable UART6 for robot expansion board
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=74620bf0c3c6091ecd7972075f5ddeba29994407;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: qcom: monaco-evk: enable UART6 for robot expansion board

The monaco-evk mezzanine connector supports a robot expansion board that
requires UART6, which is currently disabled. This prevents the expansion
board from exchanging data and control commands.

Enable UART6 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/20260327083101.1343613-3-canfeng.zhuang@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---

diff --git a/arch/arm64/boot/dts/qcom/monaco-evk.dts b/arch/arm64/boot/dts/qcom/monaco-evk.dts
index 3858872e97d9..9d17ef7d2caf 100644
--- a/arch/arm64/boot/dts/qcom/monaco-evk.dts
+++ b/arch/arm64/boot/dts/qcom/monaco-evk.dts
@@ -21,6 +21,7 @@
 		ethernet0 = &ethernet0;
 		i2c1 = &i2c1;
 		serial0 = &uart7;
+		serial2 = &uart6;
 	};
 
 	chosen {
@@ -861,6 +862,10 @@
 	};
 };
 
+&uart6 {
+	status = "okay";
+};
+
 &uart7 {
 	status = "okay";
 };