[PATCH v2 1/3] dt-bindings: RNG: Add Rockchip RNG bindings

[Aurelien Jarno]

Add the RNG bindings for the RK3568 SoC from Rockchip

Signed-off-by: Aurelien Jarno <aurelien@xxxxxxxxxxx>
---
 .../bindings/rng/rockchip,rk3568-rng.yaml     | 60 +++++++++++++++++++
 1 file changed, 60 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml

diff --git a/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml b/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml
new file mode 100644
index 000000000000..c2f5ef69cf07
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/rockchip,rk3568-rng.yaml
@@ -0,0 +1,60 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/rng/rockchip,rk3568-rng.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Rockchip TRNG
+
+description: True Random Number Generator for some Rockchip SoCs
+
+maintainers:
+  - Aurelien Jarno <aurelien@xxxxxxxxxxx>
+
+properties:
+  compatible:
+    enum:
+      - rockchip,rk3568-rng
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: TRNG clock
+      - description: TRNG AHB clock
+
+  clock-names:
+    items:
+      - const: trng_clk
+      - const: trng_hclk
+
+  resets:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - resets
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/rk3568-cru.h>
+    bus {
+      #address-cells = <2>;
+      #size-cells = <2>;
+
+      rng@fe388000 {
+        compatible = "rockchip,rk3568-rng";
+        reg = <0x0 0xfe388000 0x0 0x4000>;
+        clocks = <&cru CLK_TRNG_NS>, <&cru HCLK_TRNG_NS>;
+        clock-names = "trng_clk", "trng_hclk";
+        resets = <&cru SRST_TRNG_NS>;
+      };
+    };
+
+...
-- 
2.35.1