dt-bindings: watchdog: samsung: add specific compatible for Tesla FSD

Tesla FSD is a derivative of Samsung Exynos SoC, thus just like the
others it reuses several devices from older designs.  Historically we
kept the old (block's) compatible only.  This works fine and there is no
bug here, however guidelines expressed in
Documentation/devicetree/bindings/writing-bindings.rst state that:
1. Compatibles should be specific.
2. We should add new compatibles in case of bugs or features.

Add Tesla FSD compatible specific to be used with an existing fallback.

Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20231205092229.19135-6-krzysztof.kozlowski@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
index 8fb6656ba0c28d233a63b161c027f3e52fc80113..ea2d206b05abff58c790c429ebf6d433c368dbf6 100644 (file)
--- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
+++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.yaml
@@ -16,14 +16,19 @@ description: |+
 
 properties:
   compatible:
-    enum:
-      - samsung,s3c2410-wdt                   # for S3C2410
-      - samsung,s3c6410-wdt                   # for S3C6410, S5PV210 and Exynos4
-      - samsung,exynos5250-wdt                # for Exynos5250
-      - samsung,exynos5420-wdt                # for Exynos5420
-      - samsung,exynos7-wdt                   # for Exynos7
-      - samsung,exynos850-wdt                 # for Exynos850
-      - samsung,exynosautov9-wdt              # for Exynosautov9
+    oneOf:
+      - enum:
+          - samsung,s3c2410-wdt                   # for S3C2410
+          - samsung,s3c6410-wdt                   # for S3C6410, S5PV210 and Exynos4
+          - samsung,exynos5250-wdt                # for Exynos5250
+          - samsung,exynos5420-wdt                # for Exynos5420
+          - samsung,exynos7-wdt                   # for Exynos7
+          - samsung,exynos850-wdt                 # for Exynos850
+          - samsung,exynosautov9-wdt              # for Exynosautov9
+      - items:
+          - enum:
+              - tesla,fsd-wdt
+          - const: samsung,exynos7-wdt
 
   reg:
     maxItems: 1