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Add documentation for NMI irqchip. Signed-off-by: Carlo Caione <carlo@caione.org> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-sunxi@googlegroups.com Cc: mark.rutland@arm.com Cc: hdegoede@redhat.com Acked-by: maxime.ripard@free-electrons.com Link: http://lkml.kernel.org/r/1395256879-8475-4-git-send-email-carlo@caione.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
27 lines
974 B
Text
27 lines
974 B
Text
Allwinner Sunxi NMI Controller
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==============================
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Required properties:
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- compatible : should be "allwinner,sun7i-a20-sc-nmi" or
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"allwinner,sun6i-a31-sc-nmi"
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- reg : Specifies base physical address and size of the registers.
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- interrupt-controller : Identifies the node as an interrupt controller
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- #interrupt-cells : Specifies the number of cells needed to encode an
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interrupt source. The value shall be 2. The first cell is the IRQ number, the
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second cell the trigger type as defined in interrupt.txt in this directory.
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- interrupt-parent: Specifies the parent interrupt controller.
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- interrupts: Specifies the interrupt line (NMI) which is handled by
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the interrupt controller in the parent controller's notation. This value
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shall be the NMI.
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Example:
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sc-nmi-intc@01c00030 {
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compatible = "allwinner,sun7i-a20-sc-nmi";
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interrupt-controller;
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#interrupt-cells = <2>;
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reg = <0x01c00030 0x0c>;
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interrupt-parent = <&gic>;
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interrupts = <0 0 4>;
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};
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