linux-kernel - Re: [PATCH v1 1/2] dt-binding: hwrng: add NPCM RNG documentation

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Date:   Mon, 12 Aug 2019 17:36:23 -0600
From:   Rob Herring <robh@...nel.org>
To:     Tomer Maimon <tmaimon77@...il.com>
Cc:     mpm@...enic.com, herbert@...dor.apana.org.au, arnd@...db.de,
        gregkh@...uxfoundation.org, mark.rutland@....com,
        avifishman70@...il.com, tali.perry1@...il.com, venture@...gle.com,
        yuenn@...gle.com, benjaminfair@...gle.com, sumit.garg@...aro.org,
        jens.wiklander@...aro.org, vkoul@...nel.org, tglx@...utronix.de,
        joel@....id.au, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-crypto@...r.kernel.org,
        openbmc@...ts.ozlabs.org
Subject: Re: [PATCH v1 1/2] dt-binding: hwrng: add NPCM RNG documentation

On Mon, Jul 22, 2019 at 06:02:40PM +0300, Tomer Maimon wrote:
> Added device tree binding documentation for Nuvoton BMC
> NPCM Random Number Generator (RNG).
> 
> Signed-off-by: Tomer Maimon <tmaimon77@...il.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.

This would need a vendor prefix, however, I think it should be implied 
by the compatible string. It is fixed per SoC, right?