[PATCH v2 1/2] dt-binding: hwrng: add NPCM RNG documentation
Daniel Thompson
daniel.thompson at linaro.org
Tue Sep 10 20:25:05 AEST 2019
On Mon, Sep 09, 2019 at 03:38:39PM +0300, Tomer Maimon wrote:
> Added device tree binding documentation for Nuvoton BMC
> NPCM Random Number Generator (RNG).
>
> Signed-off-by: Tomer Maimon <tmaimon77 at gmail.com>
> ---
> .../bindings/rng/nuvoton,npcm-rng.txt | 17 +++++++++++++++++
> 1 file changed, 17 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/rng/nuvoton,npcm-rng.txt
>
> diff --git a/Documentation/devicetree/bindings/rng/nuvoton,npcm-rng.txt b/Documentation/devicetree/bindings/rng/nuvoton,npcm-rng.txt
> new file mode 100644
> index 000000000000..a697b4425fb3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rng/nuvoton,npcm-rng.txt
> @@ -0,0 +1,17 @@
> +NPCM SoC Random Number Generator
> +
> +Required properties:
> +- compatible : "nuvoton,npcm750-rng" for the NPCM7XX BMC.
> +- reg : Specifies physical base address and size of the registers.
> +
> +Optional property:
> +- quality : estimated number of bits of true entropy per 1024 bits
> + read from the rng.
> + If this property is not defined, it defaults to 1000.
There are pending unreplied review comments about this property (my own
as it happens):
https://patchwork.kernel.org/patch/11119371/
Daniel.
> +
> +Example:
> +
> +rng: rng at f000b000 {
> + compatible = "nuvoton,npcm750-rng";
> + reg = <0xf000b000 0x8>;
> +};
> --
> 2.18.0
>
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