Re: [PATCH 6/6] Documentation/devicetree: Add FSI-attached I2C master dt bindings

From: Rob Herring
Date: Wed Jun 28 2017 - 19:21:39 EST


On Mon, Jun 26, 2017 at 02:29:35PM -0500, Eddie James wrote:
> From: "Edward A. James" <eajames@xxxxxxxxxx>

"dt-bindings: i2c: ..." for the subject.

>
> Document the bindings.
>
> Signed-off-by: Edward A. James <eajames@xxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/i2c/i2c-fsi.txt | 31 +++++++++++++++++++++++
> 1 file changed, 31 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/i2c/i2c-fsi.txt
>
> diff --git a/Documentation/devicetree/bindings/i2c/i2c-fsi.txt b/Documentation/devicetree/bindings/i2c/i2c-fsi.txt
> new file mode 100644
> index 0000000..fffc067
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i2c/i2c-fsi.txt
> @@ -0,0 +1,31 @@
> +Device-tree bindings for FSI-attached I2C master driver
> +-------------------------------------------------------
> +
> +Required properties:
> + - compatible = "ibm,i2cm-fsi";

Only one version?

> + - reg = < address size >; : The FSI CFAM address and address space
> + size.
> + - #address-cells = <1>; : Number of address cells in child nodes
> + - #size-cells = <0>; : Number of size cells in child nodes.
> + - child nodes : Nodes to describe ports off the I2C
> + master.
> +
> +Child node required properties:
> + - reg = < port number > : The port number on the I2C master.
> +
> +Examples:
> +
> + i2cm@1800 {

i2c@1800

> + compatible = "ibm,i2cm-fsi";
> + reg = < 0x1800 0x400 >;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + port@0 {

The ports are separate i2c buses? Use i2c-bus@... instead. "ports" is
already used by OF graph binding.

> + reg = <0>;
> + };
> +
> + port@1 {
> + reg = <1>;
> + };
> + };
> --
> 1.8.3.1
>