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    Subject[PATCH RFC 04/14] of: irq: document properties for wakeup interrupt parent
    Date
    Some interrupt controllers in a SoC, are always powered on and have a
    select interrupts routed to them, so that they can wakeup the SoC from
    suspend. Add wakeup-parent DT property to refer to these interrupt
    controllers.

    Cc: devicetree@vger.kernel.org
    Signed-off-by: Lina Iyer <ilina@codeaurora.org>
    ---
    .../bindings/interrupt-controller/interrupts.txt | 13 +++++++++++++
    1 file changed, 13 insertions(+)

    diff --git a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
    index 8a3c40829899..c10e31050dd2 100644
    --- a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
    +++ b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
    @@ -108,3 +108,16 @@ commonly used:
    sensitivity = <7>;
    };
    };
    +
    +3) Interrupt wakeup parent
    +--------------------------
    +
    +Some interrupt controllers in a SoC, are always powered on and have a select
    +interrupts routed to them, so that they can wakeup the SoC from suspend. These
    +interrupt controllers do not fall into the category of a parent interrupt
    +controller and can be specified by the "wakeup-parent" property and contain a
    +single phandle referring to the wakeup capable interrupt controller.
    +
    + Example:
    + wakeup-parent = <&pdc_intc>;
    +
    --
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