Add system controller watchdog support for i.MX8QM.

Acked-by: Oliver Graute <redacted>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Thomas Richard <thomas.richard@bootlin.com>
---
Third version of this series. I just rebased it on v6.16-rc1, dropped the
binding patch (already applied upstream) and took RB/AB tags for the
devicetree patch.
---
Changes in v3:
- all: rebase on v6.16-rc1
- bindings: remove patch
- devicetree: take "Acked-by: Oliver Graute [off-list ref]"
- devicetree: take "Reviewed-by: Frank Li [off-list ref]"
- Link to v2: https://lore.kernel.org/r/20250414-imx8qm-watchdog-v2-0-449265a9da4e@bootlin.com (local)

Changes in v2:
- bindings: take "Acked-by: Rob Herring (Arm) [off-list ref]"
- bindings: take "Reviewed-by: Frank Li [off-list ref]"
- devicetree: move the watchdog node just after thermal-sensor
- Link to v1: https://lore.kernel.org/r/20250407-imx8qm-watchdog-v1-0-20c219b15fd2@bootlin.com (local)
---
 arch/arm64/boot/dts/freescale/imx8qm.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8qm.dtsi b/arch/arm64/boot/dts/freescale/imx8qm.dtsi
index 6fa31bc9ece8..11527050ac8b 100644
--- a/arch/arm64/boot/dts/freescale/imx8qm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8qm.dtsi

@@ -356,6 +356,11 @@ tsens: thermal-sensor {
 			compatible = "fsl,imx8qxp-sc-thermal", "fsl,imx-sc-thermal";
 			#thermal-sensor-cells = <1>;
 		};
+
+		watchdog {
+			compatible = "fsl,imx8qm-sc-wdt", "fsl,imx-sc-wdt";
+			timeout-sec = <60>;
+		};
 	};
 
 	thermal-zones {

---
base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
change-id: 20250203-imx8qm-watchdog-b8363342842e

Best regards,
-- 
Thomas Richard [off-list ref]