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     1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/rng/ti,keystone-rng.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: Keystone SoC Hardware Random Number Generator
    8 
    9 maintainers:
   10   - Nishanth Menon <nm@ti.com>
   11   - Santosh Shilimkar <ssantosh@kernel.org>
   12 
   13 properties:
   14   compatible:
   15     const: ti,keystone-rng
   16 
   17   clocks:
   18     maxItems: 1
   19 
   20   clock-names:
   21     items:
   22       - const: fck
   23 
   24   reg:
   25     maxItems: 1
   26 
   27   ti,syscon-sa-cfg:
   28     $ref: "/schemas/types.yaml#/definitions/phandle"
   29     description: |
   30       Phandle to syscon node of the SA configuration registers.  These
   31       registers are shared between HWRNG and crypto drivers.
   32 
   33 required:
   34   - compatible
   35   - clocks
   36   - clock-names
   37   - reg
   38   - ti,syscon-sa-cfg
   39 
   40 additionalProperties: false
   41 
   42 examples:
   43   - |
   44     rng@24000 {
   45         compatible = "ti,keystone-rng";
   46         ti,syscon-sa-cfg = <&sa_config>;
   47         clocks = <&clksa>;
   48         clock-names = "fck";
   49         reg = <0x24000 0x1000>;
   50     };
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