dt-bindings: watchdog: qcom-wdt: allow interrupts

Both of type of watchdogs described in the binding (the KPSS watchdog
and APSS WDT timer) have interrupts.  Allow interrupts and describe them
for KPSS watchdog to fix warnings like:

  watchdog@17c10000: Unevaluated properties are not allowed ('interrupts' was unexpected)

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20221212163532.142533-5-krzysztof.kozlowski@linaro.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

diff --git a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
index 1828eaf70b3b15c2510a4be8b0c5f8fe220efc75..b7fc57f4800e99fea92a73957e813b3cd3fe1107 100644 (file)
--- a/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/qcom-wdt.yaml
@@ -9,9 +9,6 @@ title: Qualcomm Krait Processor Sub-system (KPSS) Watchdog timer
 maintainers:
   - Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
 
-allOf:
-  - $ref: watchdog.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -51,11 +48,31 @@ properties:
   clocks:
     maxItems: 1
 
+  interrupts:
+    minItems: 1
+    maxItems: 5
+
 required:
   - compatible
   - reg
   - clocks
 
+allOf:
+  - $ref: watchdog.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: qcom,kpss-wdt
+    then:
+      properties:
+        interrupts:
+          minItems: 1
+          items:
+            - description: Bark
+            - description: Bite
+
 unevaluatedProperties: false
 
 examples:
@@ -66,5 +83,6 @@ examples:
       compatible = "qcom,apss-wdt-sm8150", "qcom,kpss-wdt";
       reg = <0x17c10000 0x1000>;
       clocks = <&sleep_clk>;
+      interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
       timeout-sec = <10>;
     };