linux-kernel - [PATCH 1/3] dt-bindings: rng: Add StarFive TRNG module

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Message-ID: <20221221090819.1259443-2-jiajie.ho@starfivetech.com>
Date:   Wed, 21 Dec 2022 17:08:17 +0800
From:   Jia Jie Ho <jiajie.ho@...rfivetech.com>
To:     Olivia Mackall <olivia@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Rob Herring <robh+dt@...nel.org>,
        "Krzysztof Kozlowski" <krzysztof.kozlowski+dt@...aro.org>
CC:     Emil Renner Berthing <kernel@...il.dk>,
        Conor Dooley <conor.dooley@...rochip.com>,
        <linux-crypto@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <linux-riscv@...ts.infradead.org>
Subject: [PATCH 1/3] dt-bindings: rng: Add StarFive TRNG module

Add documentation to describe Starfive true random number generator
module.

Co-developed-by: Jenny Zhang <jenny.zhang@...rfivetech.com>
Signed-off-by: Jenny Zhang <jenny.zhang@...rfivetech.com>
Signed-off-by: Jia Jie Ho <jiajie.ho@...rfivetech.com>
---
 .../bindings/rng/starfive,jh7110-trng.yaml    | 55 +++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rng/starfive,jh7110-trng.yaml

diff --git a/Documentation/devicetree/bindings/rng/starfive,jh7110-trng.yaml b/Documentation/devicetree/bindings/rng/starfive,jh7110-trng.yaml
new file mode 100644
index 000000000000..2b76ce25acc4
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/starfive,jh7110-trng.yaml
@@ -0,0 +1,55 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/starfive,jh7110-trng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: StarFive SoC TRNG Module
+
+maintainers:
+  - Jia Jie Ho <jiajie.ho@...rfivetech.com>
+
+properties:
+  compatible:
+    const: starfive,jh7110-trng
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Hardware reference clock
+      - description: AHB reference clock
+
+  clock-names:
+    items:
+      - const: hclk
+      - const: ahb
+
+  resets:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - resets
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    rng: rng@...0C000 {
+        compatible = "starfive,jh7110-trng";
+        reg = <0x1600C000 0x4000>;
+        clocks = <&clk 15>, <&clk 16>;
+        clock-names = "hclk", "ahb";
+        resets = <&reset 3>;
+        interrupts = <30>;
+    };
+...
-- 
2.25.1