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authorNishanth Menon <nm@ti.com>2014-06-26 12:40:33 +0530
committerJason Cooper <jason@lakedaemon.net>2014-06-30 19:21:03 +0000
commit9a34f73fb75531507760b957407fb55278b38ae8 (patch)
treee6a4cd484bb41728a1580da6c7360ef2cd209675 /Documentation/devicetree/bindings/arm/omap
parent29918b6790d92456cab87ff41a01224e0882d04a (diff)
documentation: dt: omap: crossbar: Add description for interrupt consumer
The current crossbar description does not include the description required for the consumer of the crossbar, a.k.a devices whoes events pass through the crossbar into the GIC interrupt controller. So, provide documentation for the same. Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Sricharan R <r.sricharan@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Link: https://lkml.kernel.org/r/1403766634-18543-16-git-send-email-r.sricharan@ti.com Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Diffstat (limited to 'Documentation/devicetree/bindings/arm/omap')
-rw-r--r--Documentation/devicetree/bindings/arm/omap/crossbar.txt17
1 files changed, 17 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/arm/omap/crossbar.txt b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
index a6e462f88889..ce7d01d86705 100644
--- a/Documentation/devicetree/bindings/arm/omap/crossbar.txt
+++ b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
@@ -36,3 +36,20 @@ Examples:
ti,irqs-reserved = <0 1 2 3 5 6 131 132 139 140>;
ti,irqs-skip = <10 133 139 140>;
};
+
+Consumer:
+========
+See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt and
+Documentation/devicetree/bindings/arm/gic.txt for further details.
+
+An interrupt consumer on an SoC using crossbar will use:
+ interrupts = <GIC_SPI request_number interrupt_level>
+request number shall be between 0 to that described by
+"ti,max-crossbar-sources"
+
+Example:
+ device_x@0x4a023000 {
+ /* Crossbar 8 used */
+ interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+ ...
+ };