[PATCH v8 3/4] Documentation: dt: add the omap hwspinlock bindings document

From: Suman Anna
Date: Wed Mar 04 2015 - 21:02:34 EST

HwSpinlock IP is present only on OMAP4 and other newer SoCs,
which are all device-tree boot only. This patch adds the
DT bindings information for OMAP hwspinlock module.

Cc: Rob Herring <robh+dt@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Signed-off-by: Suman Anna <s-anna@xxxxxx>
v8: Removed the previous information about hwlock-base-id, and added
a reference to the base binding document.

.../devicetree/bindings/hwlock/omap-hwspinlock.txt | 26 ++++++++++++++++++++++
1 file changed, 26 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt

diff --git a/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt
new file mode 100644
index 000000000000..2c9804f4f4ac
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/omap-hwspinlock.txt
@@ -0,0 +1,26 @@
+OMAP4+ HwSpinlock Driver
+Required properties:
+- compatible: Should be "ti,omap4-hwspinlock" for
+ OMAP44xx, OMAP54xx, AM33xx, AM43xx, DRA7xx SoCs
+- reg: Contains the hwspinlock module register address space
+ (base address and length)
+- ti,hwmods: Name of the hwmod associated with the hwspinlock device
+- #hwlock-cells: Should be 1. The OMAP hwspinlock users will use a
+ 0-indexed relative hwlock number as the argument
+ specifier value for requesting a specific hwspinlock
+ within a hwspinlock bank.
+Please look at the generic hwlock binding for usage information for consumers,
+/* OMAP4 */
+hwspinlock: spinlock@4a0f6000 {
+ compatible = "ti,omap4-hwspinlock";
+ reg = <0x4a0f6000 0x1000>;
+ ti,hwmods = "spinlock";
+ #hwlock-cells = <1>;

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