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    Subject[PATCH 4/4] gpio: ptxpmb-ext-cpld: Document bindings of PTXPMB extended CPLD
    Date
    From: Georgi Vlaev <gvlaev@juniper.net>

    Add device tree bindings document for the GPIO driver of
    Juniper's PTXPMB extended CPLD.

    Signed-off-by: Georgi Vlaev <gvlaev@juniper.net>
    [Ported from Juniper kernel]
    Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
    ---
    .../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"
    +
    +- #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
    +
    +- 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.
    +
    +
    +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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