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

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On Tue, Aug 13, 2019 at 2:36 AM Rob Herring <robh@xxxxxxxxxx> wrote:
>
> 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@xxxxxxxxx>
> > ---
> >  .../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?

Tomer is on vacation, so I answer instead:
This value is the same for all our SoC flavor that contains this RNG HW.


-- 
Regards,
Avi



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