On 2016-10-07 17:21, Pantelis Antoniou wrote:
> From: Georgi Vlaev <gvl...@juniper.net>
>
> Add binding document for the i2c mux driver of Juniper's I2CS FPGA.
>
> Signed-off-by: Georgi Vlaev <gvl...@juniper.net>
> [Ported from Juniper kernel]
> Signed-off-by: Pantelis Antoniou <pantelis.anton...@konsulko.com>
> ---
> .../devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt | 27
> ++++++++++++++++++++++
> 1 file changed, 27 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt
>
> diff --git a/Documentation/devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt
> b/Documentation/devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt
> new file mode 100644
> index 0000000..03d917f
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/i2c/jnx,i2c-mux-i2cs.txt
> @@ -0,0 +1,27 @@
> +* Juniper I2C Mux on I2CS
> +
> + I2C mux driver for switching the RE access to the FPC i2c bus.
> + Compatible with the FPC variant of the I2CS.
> +
> +Required properties:
> +
> + - compatible: "jnx,i2cs-mux-i2cs".
jnx,i2c-mux-i2cs
> +
> +The following required properties are defined externally:
> +
> + - Standard I2C mux properties. See i2c-mux.txt in this directory.
To accommodate changes pending for 4.9, change "mux" to "gate" in
this line...
> + - I2C child bus nodes. See i2c-mux.txt in this directory.
This line is wrong since the child nodes themselves are optional in
i2c-gate.txt (and i2c-mux.txt). I guess you can just drop it since
the child nodes are mentioned in i2c-gate.txt (and i2c-mux.txt).
> +
> +Example:
> +
> +fpc0_mux {
> + compatible = "jnx,i2c-mux-i2cs";
> + #address-cells = <1>;
> + #size-cells = <0>;
...drop these two...
> +
> + fpc0i2c0: i2c@0 {
...change i2c@0 to i2c-gate...
> + #address-cells = <1>;
> + #size-cells = <0>;
> + reg = <0>;
...and drop reg.
Cheers,
Peter
> + };
> +};
>
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