Add a binding for lubbock motherboard IO board.
Signed-off-by: Robert Jarzmik <robert.jarzmik@xxxxxxx>
---
.../devicetree/bindings/mfd/lubbock-io.txt | 26 ++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/lubbock-io.txt
diff --git a/Documentation/devicetree/bindings/mfd/lubbock-io.txt b/Documentation/devicetree/bindings/mfd/lubbock-io.txt
new file mode 100644
index 0000000..33c9e21
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/lubbock-io.txt
@@ -0,0 +1,26 @@
+Intel's pxa255 system development platform motherboard.
+
+This is the motherboard, or IO board, of the pxa25x development system,
+supporting a lubbock pxa25x SoC board.
+
+Required properties:
+ - compatible : One of the following chip-specific strings:
+ "intel,lubbock-io"
+ - interrupts : The first interrupt is the line the /IRQ signal the IO board
+ multiplex is connected to. The only known case is GPIO0 on the
+ pxa25x SoC.
+
+Optional properties:
+ - interrupts : The second optional interrupt is the base of the interrupts
+ multiplexed by the lubbock motherboard. If unspecified, the
+ range is fully dynamic, and the irqdomain will generate its
+ interrupt base on the fly.
+
+Example:
+
+mb: lubbock-mb@0 {
+ compatible = "intel,lubbock-io";
+ interrupts = <0 IRQ_TYPE_EDGE_FALLING 400 IRQ_TYPE_NONE>;
+ #interrupt-cells = <2>;
+ interrupt-parent = <&pxairq>;
+};
--
2.1.0
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