Add devicetree binding document for Loongson-1 watchdog.
Signed-off-by: Keguang Zhang <keguang.zhang@xxxxxxxxx>
---
V1 -> V2: Replaced the wildcard compatible string with specific ones
Use unevaluatedProperties instead of additionalProperties
(suggested by Krzysztof Kozlowski)
---
.../bindings/watchdog/loongson,ls1x-wdt.yaml | 42 +++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 Documentation/devicetree/bindings/watchdog/loongson,ls1x-wdt.yaml
diff --git a/Documentation/devicetree/bindings/watchdog/loongson,ls1x-wdt.yaml b/Documentation/devicetree/bindings/watchdog/loongson,ls1x-wdt.yaml
new file mode 100644
index 000000000000..81690d4b62a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/loongson,ls1x-wdt.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/watchdog/loongson,ls1x-wdt.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson-1 Watchdog Timer
+
+maintainers:
+ - Keguang Zhang <keguang.zhang@xxxxxxxxx>
+
+allOf:
+ - $ref: watchdog.yaml#
+
+properties:
+ compatible:
+ enum:
+ - loongson,ls1b-wdt
+ - loongson,ls1c-wdt
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+ - clocks
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/loongson,ls1x-clk.h>
+ watchdog: watchdog@1fe5c060 {
+ compatible = "loongson,ls1b-wdt";
+ reg = <0x1fe5c060 0xc>;
+
+ clocks = <&clkc LS1X_CLKID_APB>;
+ };
--
2.39.2
