From 1cafd2a8508190eb2c4ae2a3cc62268866452c87 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa+renesas@sang-engineering.com>
Date: Thu, 9 Oct 2025 12:45:03 +0200
Subject: [PATCH] dt-bindings: watchdog: renesas,wdt: add SWDT exception for
 V3H

The SWDT on V3H has no reset bit. Make resets optional on this SoC.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
---
 .../devicetree/bindings/watchdog/renesas,wdt.yaml     | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
index 08ba128bf4420..7aebc5a5cf17d 100644
--- a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml
@@ -74,11 +74,20 @@ required:
   - clocks
   - interrupts
   - power-domains
-  - resets
 
 allOf:
   - $ref: watchdog.yaml#
 
+  - if:
+      not:
+        properties:
+          compatible:
+            contains:
+              const: renesas,r8a77980-wdt
+    then:
+      required:
+        - resets
+
 additionalProperties: false
 
 examples:
-- 
2.47.3