From: Wolfgang Birkner <wolfgang.birkner@bshg.com>
Date: Tue, 15 Jul 2025 14:13:10 +0000 (+0200)
Subject: ARM: dts: imx6ulz-bsh-smm-m2: fix resume via console
X-Git-Tag: v6.18-rc1~147^2~21^2~42
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=9db115e231a665e82429ea63e2efda4abd4390fe;p=thirdparty%2Fkernel%2Flinux.git

ARM: dts: imx6ulz-bsh-smm-m2: fix resume via console

Despite the current configuration being compliant with the technical
reference manual (TRM), testing on the system showed that resuming from
suspend via UART4 (used as the console) fails unless any other UART
is also enabled.

In our use case, UART2 is enabled to ensure reliable resume when UART4
is used as the console.

Signed-off-by: Wolfgang Birkner <wolfgang.birkner@bshg.com>
Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com>
Acked-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm/boot/dts/nxp/imx/imx6ulz-bsh-smm-m2.dts b/arch/arm/boot/dts/nxp/imx/imx6ulz-bsh-smm-m2.dts
index 6159ed70d9661..2d9f495660c9a 100644
--- a/arch/arm/boot/dts/nxp/imx/imx6ulz-bsh-smm-m2.dts
+++ b/arch/arm/boot/dts/nxp/imx/imx6ulz-bsh-smm-m2.dts
@@ -33,6 +33,10 @@
 	status = "okay";
 };
 
+&uart2 {
+	status = "okay";
+};
+
 &uart3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart3>;