Add documentation for the HW spinlock in OMAP4.

Signed-off-by: Benoit Cousson <redacted>
Cc: Randy Dunlap <redacted>
---
 .../bindings/hwspinlock/omap-spinlock.txt          |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/hwspinlock/omap-spinlock.txt

diff --git a/Documentation/devicetree/bindings/hwspinlock/omap-spinlock.txt b/Documentation/devicetree/bindings/hwspinlock/omap-spinlock.txt
new file mode 100644
index 0000000..36ac074
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwspinlock/omap-spinlock.txt

@@ -0,0 +1,5 @@
+HW spinlock on OMAP platform:
+
+Required properties:
+- compatible : Must be "ti,omap-spinlock";
+- hwmods : "spinlock"

-- 
1.7.0.4