1 files changed, 10 insertions, 2 deletions

diff --git a/Documentation/devicetree/bindings/arm/omap/crossbar.txt b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
index ce7d01d86705..4139db353d0a 100644
--- a/Documentation/devicetree/bindings/arm/omap/crossbar.txt
+++ b/Documentation/devicetree/bindings/arm/omap/crossbar.txt
@@ -44,8 +44,10 @@ 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"
+When the request number is between 0 to that described by
+"ti,max-crossbar-sources", it is assumed to be a crossbar mapping. If the
+request_number is greater than "ti,max-crossbar-sources", then it is mapped as a
+quirky hardware mapping direct to GIC.
 
 Example:
         device_x@0x4a023000 {
@@ -53,3 +55,9 @@ Example:
                 interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
                 ...
         };
+
+        device_y@0x4a033000 {
+                /* Direct mapped GIC SPI 1 used */
+                interrupts = <GIC_SPI DIRECT_IRQ(1) IRQ_TYPE_LEVEL_HIGH>;
+                ...
+        };