linux-kernel - [PATCH v3 1/2] dt-bindings: rng: add google,gs101-trng compatible

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Message-Id: <20251024-gs101-trng-v3-1-5d3403738f39@linaro.org>
Date: Fri, 24 Oct 2025 17:57:34 +0000
From: Tudor Ambarus <tudor.ambarus@...aro.org>
To: Łukasz Stelmach <l.stelmach@...sung.com>, 
 Olivia Mackall <olivia@...enic.com>, 
 Herbert Xu <herbert@...dor.apana.org.au>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Peter Griffin <peter.griffin@...aro.org>, 
 André Draszik <andre.draszik@...aro.org>
Cc: Krzysztof Kozlowski <krzk@...nel.org>, semen.protsenko@...aro.org, 
 willmcvicker@...gle.com, kernel-team@...roid.com, 
 linux-samsung-soc@...r.kernel.org, linux-crypto@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-kernel@...r.kernel.org, Tudor Ambarus <tudor.ambarus@...aro.org>, 
 Krzysztof Kozlowski <krzk@...nel.org>
Subject: [PATCH v3 1/2] dt-bindings: rng: add google,gs101-trng compatible

Add support for the TRNG found on GS101. It works well with the current
exynos850 TRNG support.

The TRNG controller can be part of a power domain, allow the relevant
property 'power-domains'.

Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 .../devicetree/bindings/rng/samsung,exynos5250-trng.yaml    | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/rng/samsung,exynos5250-trng.yaml b/Documentation/devicetree/bindings/rng/samsung,exynos5250-trng.yaml
index 1a71935d8a1906591439c03b7678538e656324b6..699831927932949a433fa5dca767ad366fb76f2c 100644
--- a/Documentation/devicetree/bindings/rng/samsung,exynos5250-trng.yaml
+++ b/Documentation/devicetree/bindings/rng/samsung,exynos5250-trng.yaml
@@ -12,9 +12,13 @@ maintainers:
 
 properties:
   compatible:
-    enum:
-      - samsung,exynos5250-trng
-      - samsung,exynos850-trng
+    oneOf:
+      - enum:
+          - samsung,exynos5250-trng
+          - samsung,exynos850-trng
+      - items:
+          - const: google,gs101-trng
+          - const: samsung,exynos850-trng
 
   clocks:
     minItems: 1
@@ -24,6 +28,9 @@ properties:
     minItems: 1
     maxItems: 2
 
+  power-domains:
+    maxItems: 1
+
   reg:
     maxItems: 1
 

-- 
2.51.1.851.g4ebd6896fd-goog