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-rw-r--r--Documentation/devicetree/bindings/powerpc/fsl/mpic.txt7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt b/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
index b393ccf1e9f..dc5744636a5 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/mpic.txt
@@ -70,6 +70,13 @@ PROPERTIES
If present the MPIC will be assumed to only be able to route
non-IPI interrupts to a single CPU at a time (EG: Freescale MPIC).
+ - last-interrupt-source
+ Usage: optional
+ Value type: <u32>
+ Some MPICs do not correctly report the number of hardware sources
+ in the global feature registers. If specified, this field will
+ override the value read from MPIC_GREG_FEATURE_LAST_SRC.
+
INTERRUPT SPECIFIER DEFINITION
Interrupt specifiers consists of 4 cells encoded as