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    Subject[PATCH v2 5/9] dt-bindings: pinctrl: meson: update gpio dt-bindings
    Date
    Add description for the interrupt-parent property of the gpio sub-node
    If provided here, this property must be a phandle to an interrupt
    controller suitable for meson pinctrl, like the meson gpio interrupt
    controller.

    Acked-by: Rob Herring <robh@kernel.org>
    Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
    ---
    Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt | 4 ++++
    1 file changed, 4 insertions(+)

    diff --git a/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
    index fe7fe0b03cfb..39932c4dfb32 100644
    --- a/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
    +++ b/Documentation/devicetree/bindings/pinctrl/meson,pinctrl.txt
    @@ -23,6 +23,10 @@ Required properties for sub-nodes are:
    - gpio-controller: identifies the node as a gpio controller
    - #gpio-cells: must be 2

    +Optional property for sub-nodes is:
    + - interrupt-parent: must be a phandle to the meson gpio interrupt controller.
    + if this property is provided, enables gpio ability to generate interrupts
    +
    === Other sub-nodes ===

    Child nodes without the "gpio-controller" represent some desired
    --
    2.7.4
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