ARM: dts: imx7s-warp: Use WDOG_B pin reset

imx7s-warpd has WDOG1_B pin connected to the PMIC.

Pass the 'fsl,ext-reset-output' property so that the watchdog
can trigger a system POR reset via the PMIC.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/imx7s-warp.dts b/arch/arm/boot/dts/imx7s-warp.dts
index 4d4959c856a9..92d9c8570716 100644
--- a/arch/arm/boot/dts/imx7s-warp.dts
+++ b/arch/arm/boot/dts/imx7s-warp.dts
@@ -257,6 +257,13 @@
         status = "okay";
 };
 
+&wdog1 {
+        pinctrl-names = "default";
+        pinctrl-0 = <&pinctrl_wdog>;
+        fsl,ext-reset-output;
+        status = "okay";
+};
+
 &iomuxc {
         pinctrl_brcm_reg: brcmreggrp {
                 fsl,pins = <
@@ -354,4 +361,10 @@
                         MX7D_PAD_SD3_RESET_B__SD3_RESET_B       0x1b
                 >;
         };
+
+        pinctrl_wdog: wdoggrp {
+                fsl,pins = <
+                        MX7D_PAD_GPIO1_IO00__WDOD1_WDOG_B       0x74
+                >;
+        };
 };