Documentation/devicetree/bindings/rng/omap_rng.yaml

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/rng/omap_rng.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: OMAP SoC and Inside-Secure HWRNG Module

maintainers:
  - Jayesh Choudhary <j-choudhary@ti.com>

properties:
  compatible:
    enum:
      - ti,omap2-rng
      - ti,omap4-rng
      - inside-secure,safexcel-eip76

  ti,hwmods:
    const: rng
    deprecated: true
    description: Name of the hwmod associated with the RNG module

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  clocks:
    minItems: 1
    items:
      - description: EIP150 gatable clock
      - description: Main gatable clock

  clock-names:
    minItems: 1
    items:
      - const: core
      - const: reg


allOf:
  - if:
      properties:
        compatible:
          contains:
            enum:
              - ti,omap4-rng
              - inside-secure,safexcel-eip76

    then:
      required:
        - interrupts

  - if:
      properties:
        compatible:
          contains:
            enum:
              - inside-secure,safexcel-eip76

    then:
      required:
        - clocks


required:
  - compatible
  - reg

additionalProperties: false

examples:
  - |
    /* AM335x */
    rng: rng@48310000 {
            compatible = "ti,omap4-rng";
            ti,hwmods = "rng";
            reg = <0x48310000 0x2000>;
            interrupts = <111>;
    };
  - |
    /* SafeXcel IP-76 */
    trng: rng@f2760000 {
            compatible = "inside-secure,safexcel-eip76";
            reg = <0xf2760000 0x7d>;
            interrupts = <0 59 4>;
            clocks = <&cpm_syscon0 1 25>;
    };

...