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SubjectRE: [PATCH v2 1/4] dt-bindings: soc: imx8m: add DT Binding doc for soc unique ID
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> Subject: Re: [PATCH v2 1/4] dt-bindings: soc: imx8m: add DT Binding doc for
> soc unique ID
>
> On Thu, Nov 05, 2020 at 03:26:26PM +0800, Alice Guo wrote:
> > Add DT Binding doc for the Unique ID of i.MX 8M series.
> >
> > Signed-off-by: Alice Guo <alice.guo@nxp.com>
> > ---
> > .../devicetree/bindings/arm/fsl.yaml | 33
> +++++++++++++++++++
> > 1 file changed, 33 insertions(+)
> >
> > diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml
> b/Documentation/devicetree/bindings/arm/fsl.yaml
> > index e4db0f9ed664..0419f078502b 100644
> > --- a/Documentation/devicetree/bindings/arm/fsl.yaml
> > +++ b/Documentation/devicetree/bindings/arm/fsl.yaml
> > @@ -901,6 +901,39 @@ properties:
> > - fsl,s32v234-evb # S32V234-EVB2
> Customer Evaluation Board
> > - const: fsl,s32v234
> >
> > + soc:
> > + description:
> > + i.MX8M Family SoC must provide a soc node in the root of the
> device tree,
> > + representing the System-on-Chip since these test chips are rather
> complex.
> > + type: object
> > + properties:
> > + compatible:
> > + oneOf:
> > + - items:
> > + - const: fsl,imx8mm-soc
> > + - const: simple-bus
> > + - items:
> > + - const: fsl,imx8mn-soc
> > + - const: simple-bus
> > + - items:
> > + - const: fsl,imx8mp-soc
> > + - const: simple-bus
> > + - items:
> > + - const: fsl,imx8mq-soc
> > + - const: simple-bus
>
> items:
> - enum:
> - fsl,imx8mm-soc
> - fsl,imx8mn-soc
> - fsl,imx8mp-soc
> - fsl,imx8mq-soc
> - const: simple-bus
>
> > +
> > + nvmem-cells:
> > + maxItems: 1
> > + description: Phandle to the SOC Unique ID provided by a nvmem
> node
> > +
> > + nvmem-cells-names:
> > + const: soc_unique_id
> > +
> > + required:
> > + - compatible
> > + - nvmem-cells
> > + - nvmem-cell-names
> > +
>
> 'soc' should be required?

The fsl,imx8m[m,n,p,q] already used by root node compatible.
So here could reuse the same compatible string? Or
We add an extra 'soc' here?

Thanks,
Peng.

>
> > additionalProperties: true
> >
> > ...
> > --
> > 2.17.1
> >

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