From 197286f86012250191bfe616dc4e9b8e34380c35 Mon Sep 17 00:00:00 2001
From: Samuel Holland <samuel@sholland.org>
Date: Sat, 31 Dec 2022 16:01:43 -0600
Subject: [PATCH] dt-bindings: crypto: sun8i-ce: Add compatible for D1

D1 has a crypto engine similar to the one in other Allwinner SoCs.
Like H6, it has a separate MBUS clock gate.

It also requires the internal RC oscillator to be enabled for the TRNG
to return data, presumably because noise from the oscillator is used as
an entropy source. This is likely the case for earlier variants as well,
but it really only matters for H616 and newer SoCs, as H6 provides no
way to disable the internal oscillator.

Signed-off-by: Samuel Holland <samuel@sholland.org>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 .../bindings/crypto/allwinner,sun8i-ce.yaml   | 33 ++++++++++++++-----
 1 file changed, 25 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml b/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml
index 026a9f9e1aeb..4287678aa79f 100644
--- a/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml
+++ b/Documentation/devicetree/bindings/crypto/allwinner,sun8i-ce.yaml
@@ -14,6 +14,7 @@ properties:
     enum:
       - allwinner,sun8i-h3-crypto
       - allwinner,sun8i-r40-crypto
+      - allwinner,sun20i-d1-crypto
       - allwinner,sun50i-a64-crypto
       - allwinner,sun50i-h5-crypto
       - allwinner,sun50i-h6-crypto
@@ -29,6 +30,7 @@ properties:
       - description: Bus clock
       - description: Module clock
       - description: MBus clock
+      - description: TRNG clock (RC oscillator)
     minItems: 2
 
   clock-names:
@@ -36,6 +38,7 @@ properties:
       - const: bus
       - const: mod
       - const: ram
+      - const: trng
     minItems: 2
 
   resets:
@@ -44,19 +47,33 @@ properties:
 if:
   properties:
     compatible:
-      const: allwinner,sun50i-h6-crypto
+      enum:
+        - allwinner,sun20i-d1-crypto
 then:
   properties:
     clocks:
-      minItems: 3
+      minItems: 4
     clock-names:
-      minItems: 3
+      minItems: 4
 else:
-  properties:
-    clocks:
-      maxItems: 2
-    clock-names:
-      maxItems: 2
+  if:
+    properties:
+      compatible:
+        const: allwinner,sun50i-h6-crypto
+  then:
+    properties:
+      clocks:
+        minItems: 3
+        maxItems: 3
+      clock-names:
+        minItems: 3
+        maxItems: 3
+  else:
+    properties:
+      clocks:
+        maxItems: 2
+      clock-names:
+        maxItems: 2
 
 required:
   - compatible