[PATCH v3 5/5] dt-bindings: watchdog: renesas,wdt: add SWDT exception for V3H

[Wolfram Sang <wsa+renesas@sang-engineering.com>]

Normally, RWDT and SWDT can share the same binding. But on R-Car V3H,
SWDT misses the reset bit. Add this exception.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---

Changes since v2:
* new patch

 .../devicetree/bindings/watchdog/renesas,wdt.yaml  | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
index 08ba128bf442..727f034e7f92 100644
--- a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
@@ -39,6 +39,7 @@ properties:
               - renesas,r8a77965-wdt     # R-Car M3-N
               - renesas,r8a77970-wdt     # R-Car V3M
               - renesas,r8a77980-wdt     # R-Car V3H
+              - renesas,r8a77980-swdt    # R-Car V3H SWDT (no reset)
               - renesas,r8a77990-wdt     # R-Car E3
               - renesas,r8a77995-wdt     # R-Car D3
           - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2
@@ -74,11 +75,22 @@ required:
   - clocks
   - interrupts
   - power-domains
-  - resets
 
 allOf:
   - $ref: watchdog.yaml#
 
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: renesas,r8a77980-swdt
+    then:
+      properties:
+        resets: false
+    else:
+      required:
+        - resets
+
 additionalProperties: false
 
 examples:
-- 
2.47.2