dt-bindings: wdt: Add DT binding ts72xx wdt

Add DT binding for Technologic Systems TS-72xx watchdog.

Signed-off-by: Nikita Shubin <nikita.shubin@maquefel.me>

diff --git a/Documentation/devicetree/bindings/watchdog/technologic,ts72xx-wdt.yaml b/Documentation/devicetree/bindings/watchdog/technologic,ts72xx-wdt.yaml
new file mode 100644 (file)
index 0000000..2d78753
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+++ b/Documentation/devicetree/bindings/watchdog/technologic,ts72xx-wdt.yaml
@@ -0,0 +1,39 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/technologic,ts72xx-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Technologic Systems TS-72xx based SBCs watchdog bindings
+
+maintainers:
+  - Wim Van Sebroeck <wim@linux-watchdog.org>
+  - Guenter Roeck <linux@roeck-us.net>
+
+allOf:
+  - $ref: "watchdog.yaml#"
+
+properties:
+  compatible:
+    enum:
+      - technologic,ts72xx-wdt
+
+  reg:
+    maxItems: 2
+
+required:
+  - compatible
+  - reg
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    watchdog@5a002000 {
+      compatible = "technologic,ts72xx-wdt";
+      reg = <0x23800000 0x01>, <0x23c00000 0x01>;
+      timeout-sec = <30>;
+    };
+
+...
+