Re: [PATCH v3 3/3] dt-bindings: i2c: qcom,i2c-qup: Document noise rejection properties

[AngeloGioacchino Del Regno]

Il 28/01/21 10:13, Wolfram Sang ha scritto:
> > +  qcom,noise-reject-sda:
> > +    $ref: /schemas/types.yaml#/definitions/uint32
> > +    description: Noise rejection level for the SDA line.
> > +    minimum: 0
> > +    maximum: 3
> > +    default: 0
>
> What does this u32 describe? I wonder if we can introduce a generic
> property instead of a vendor-specific one.

Describes a "noise rejection level"... zero is disabled, 1-2-3 are
min-med-high. That's what the hardware accepts.

Also, there's no "real" documentation on this, so it wasn't possible
to map it to any real measurement unit as well...