[PATCH v2 1/2] dt-bindings: watchdog: Add NXP Software Watchdog Timer

Daniel Lezcano
2025-04-02T15:49:56Z

Describe the Software Watchdog Timer available on the S32G platforms.

Cc: Ghennadi Procopciuc <ghennadi.procopciuc@nxp.com>
Cc: Thomas Fossati <thomas.fossati@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
.../bindings/watchdog/nxp,s32g2-swt.yaml | 42 +++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/nxp,s32g2-swt.yaml

diff --git a/Documentation/devicetree/bindings/watchdog/nxp,s32g2-swt.yaml b/Documentation/devicetree/bindings/watchdog/nxp,s32g2-swt.yaml
new file mode 100644
index 000000000000..d5f2513c4e8f
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/nxp,s32g2-swt.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/nxp,s32g2-swt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP Software Watchdog Timer (SWT)
+
+maintainers:
+ - Daniel Lezcano <daniel.lezcano@kernel.org>
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ - const: nxp,s32g2-swt
+ - items:
+ - const: nxp,s32g3-swt
+ - const: nxp,s32g2-swt
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ watchdog@0x40100000 {
+ compatible = "nxp,s32g2-swt";
+ reg = <0x40100000 0x1000>;
+ clocks = <&clks 0x3a>;
+ timeout-sec = <10>;
+ };
--
2.43.0