On Fri, Nov 13, 2020 at 07:04:06PM +0800, Alice Guo wrote: > Add DT Binding doc for the Unique ID of i.MX 8M series. > > Signed-off-by: Alice Guo <alice.guo@xxxxxxx> > --- > .../devicetree/bindings/arm/fsl.yaml | 25 +++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/Documentation/devicetree/bindings/arm/fsl.yaml b/Documentation/devicetree/bindings/arm/fsl.yaml > index e4db0f9ed664..f4faebbb57da 100644 > --- a/Documentation/devicetree/bindings/arm/fsl.yaml > +++ b/Documentation/devicetree/bindings/arm/fsl.yaml > @@ -901,6 +901,31 @@ properties: > - fsl,s32v234-evb # S32V234-EVB2 Customer Evaluation Board > - const: fsl,s32v234 > > + soc: > + type: object > + properties: > + compatible: > + oneOf: > + - description: i.MX8M SoCs > + items: > + - enum: > + - fsl,imx8mm-soc > + - fsl,imx8mn-soc > + - fsl,imx8mp-soc > + - fsl,imx8mq-soc > + - const: simple-bus > + > + - description: Other SoCs > + items: > + - 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 > + > additionalProperties: true The "soc" node should be required for these compatibles. Otherwise you will have to stay with this backwards-compatible-DTB-device-initcall-glue for many years... I think you can achieve it with allOf. Best regards, Krzysztof
