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irqchip: renesas-irqc: Add DT binding documentation

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The renesas-irqc driver supports DT, but the DT binding documentation was
missing.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Link: https://lkml.kernel.org/r/1409212800-4957-2-git-send-email-geert+renesas@glider.be
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
This commit is contained in:
Geert Uytterhoeven 2014-08-28 09:59:59 +02:00 committed by Jason Cooper
parent 9857b069b2
commit 41a3322a93
1 changed files with 29 additions and 0 deletions
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Documentation/devicetree/bindings/interrupt-controller/renesas,irqc.txt Normal file
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DT bindings for the R-Mobile/R-Car interrupt controller
Required properties:
- compatible: has to be "renesas,irqc-<soctype>", "renesas,irqc" as fallback.
Examples with soctypes are:
- "renesas,irqc-r8a73a4" (R-Mobile AP6)
- "renesas,irqc-r8a7790" (R-Car H2)
- "renesas,irqc-r8a7791" (R-Car M2)
- #interrupt-cells: has to be <2>: an interrupt index and flags, as defined in
interrupts.txt in this directory
Optional properties:
- any properties, listed in interrupts.txt, and any standard resource allocation
properties
Example:
irqc0: interrupt-controller@e61c0000 {
compatible = "renesas,irqc-r8a7790", "renesas,irqc";
#interrupt-cells = <2>;
interrupt-controller;
reg = <0 0xe61c0000 0 0x200>;
interrupts = <0 0 IRQ_TYPE_LEVEL_HIGH>,
<0 1 IRQ_TYPE_LEVEL_HIGH>,
<0 2 IRQ_TYPE_LEVEL_HIGH>,
<0 3 IRQ_TYPE_LEVEL_HIGH>;
};