From: Primoz Fiser <primoz.fiser@norik.com>
Date: Thu, 26 Jun 2025 07:16:29 +0000 (+0200)
Subject: arm64: dts: freescale: imx93-phycore-som: Add watchdog ext-reset-output pin
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2a23ec9b6cf5e43969834df04a9a28170ade743f;p=thirdparty%2Fkernel%2Fstable.git

arm64: dts: freescale: imx93-phycore-som: Add watchdog ext-reset-output pin

On phyCORE-i.MX93 SoM, the SoC WDOG_ANY output line is connected to the
external pca9451a PMIC WDOG_B input. Apply pinctrl and set the property
"fsl,ext-reset-output" for watchdog to trigger board reset via PMIC on
timeout/reset.

Signed-off-by: Primoz Fiser <primoz.fiser@norik.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
---

diff --git a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
index 26bd801a49bb..c6f5aa38ebf9 100644
--- a/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93-phycore-som.dtsi
@@ -195,6 +195,9 @@
 
 /* Watchdog */
 &wdog3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_wdog>;
+	fsl,ext-reset-output;
 	status = "okay";
 };
 
@@ -283,4 +286,10 @@
 			MX93_PAD_SD1_STROBE__USDHC1_STROBE	0x179e
 		>;
 	};
+
+	pinctrl_wdog: wdoggrp {
+		fsl,pins = <
+			MX93_PAD_WDOG_ANY__WDOG1_WDOG_ANY	0x31e
+		>;
+	};
 };