From: Wei Chen <wei.chen@xxxxxxx>
The Hardware Spinlock device on atlas7 provides hardware assistance
for synchronization between the multiple processors in the system
(dual Cortex-A7, CAN bus Cortex-M3 and audio DSP).
This patch adds the DT bindings information for this hwspinlock
module.
Cc: Suman Anna <s-anna@xxxxxx>
Cc: Bjorn Andersson <bjorn@xxxxxxx>
Signed-off-by: Wei Chen <wei.chen@xxxxxxx>
Signed-off-by: Barry Song <Baohua.Song@xxxxxxx>
---
-v4: add description for "#hwlock-cells"
thanks suman!
.../devicetree/bindings/hwlock/sirf,hwspinlock.txt | 28 ++++++++++++++++++++++
1 file changed, 28 insertions(+)
create mode 100644 Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt
diff --git a/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt
new file mode 100644
index 0000000..9bb1240a6
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt
@@ -0,0 +1,28 @@
+SIRF Hardware spinlock device Binding
+-----------------------------------------------
+
+Required properties :
+- compatible : shall contain only one of the following:
+ "sirf,hwspinlock"
+
+- reg : the register address of hwspinlock
+
+- #hwlock-cells : hwlock users only use the hwlock id to represent a specific
+ hwlock, so the number of cells should be <1> here.
+
+Please look at the generic hwlock binding for usage information for consumers,
+"Documentation/devicetree/bindings/hwlock/hwlock.txt"
+
+Example of hwlock provider:
+ hwlock {
+ compatible = "sirf,hwspinlock";
+ reg = <0x13240000 0x00010000>;
+ #hwlock-cells = <1>;
+ };
+
+Example of hwlock users:
+ node {
+ ...
+ hwlocks = <&hwlock 2>;
+ ...
+ };
--
2.3.5
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