On Fri, Oct 07, 2016 at 06:19:34PM +0300, Pantelis Antoniou wrote:
> From: Georgi Vlaev <gvlaev@xxxxxxxxxxx>
>
> Add device tree bindings document for the GPIO driver of
> Juniper's PTXPMB extended CPLD.
>
> Signed-off-by: Georgi Vlaev <gvlaev@xxxxxxxxxxx>
> [Ported from Juniper kernel]
> Signed-off-by: Pantelis Antoniou <pantelis.antoniou@xxxxxxxxxxxx>
> ---
> .../bindings/gpio/jnx,gpio-ptxpmb-ext-cpld.txt | 36 ++++++++++++++++++++++
> 1 file changed, 36 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/gpio/jnx,gpio-ptxpmb-ext-cpld.txt
>
> diff --git a/Documentation/devicetree/bindings/gpio/jnx,gpio-ptxpmb-ext-cpld.txt b/Documentation/devicetree/bindings/gpio/jnx,gpio-ptxpmb-ext-cpld.txt
> new file mode 100644
> index 0000000..87f01b9
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/jnx,gpio-ptxpmb-ext-cpld.txt
> @@ -0,0 +1,36 @@
> +Juniper PTXPMB extended CPLD GPIO block
> +
> +Required properties:
> +
> +- compatible:
> + Must be "jnx,gpio-ptxpmb-ext-cpld"
Generally, '-gpio' would be last.
> +
> +- #gpio-cells:
> + Should be <2>. The first cell is the pin number (within the controller's
> + pin space), and the second is used for the following flags:
> + bit[0]: direction (0 = out, 1 = in)
> + bit[1]: init high
> + bit[2]: active low
Same comment as all the other gpio bindings...
> +
> +- gpio-controller:
> + Specifies that the node is a GPIO controller.
> +
> +- interrupt-controller:
> + Specifies that the node is an interrupt controller.
> +
> +Optional properties:
> +
> +- reg:
> + Address and length of the register set for the device. Usually supplied
> + by the parent MFD device.
Make it required.
> +
> +
> +Example:
> +
> +gpio_ext_cpld: cpld-ext-gpio {
> + compatible = "jnx,gpio-ptxpmb-ext-cpld";
> + #gpio-cells = <2>;
> + #interrupt-cells = <2>;
> + gpio-controller;
> + interrupt-controller;
> +};
> --
> 1.9.1
>
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