linux-kernel - [PATCH 2/3 v3] Documentation: dt: add the CSR atlas7 hwspinlock bindings document

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Message-Id: <1432017698-23725-2-git-send-email-21cnbao@gmail.com>
Date:	Tue, 19 May 2015 06:41:37 +0000
From:	Barry Song <21cnbao@...il.com>
To:	ohad@...ery.com, linux-kernel@...r.kernel.org,
	devicetree@...r.kernel.org
Cc:	workgroup.linux@....com, Wei Chen <wei.chen@....com>,
	Suman Anna <s-anna@...com>, Bjorn Andersson <bjorn@...o.se>,
	Barry Song <Baohua.Song@....com>
Subject: [PATCH 2/3 v3] Documentation: dt: add the CSR atlas7 hwspinlock bindings document

From: Wei Chen <wei.chen@....com>

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@...com>
Cc: Bjorn Andersson <bjorn@...o.se>
Signed-off-by: Wei Chen <wei.chen@....com>
Signed-off-by: Barry Song <Baohua.Song@....com>
---
 .../devicetree/bindings/hwlock/sirf,hwspinlock.txt | 25 ++++++++++++++++++++++
 1 file changed, 25 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..cc6d351
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt
@@ -0,0 +1,25 @@
+SIRF Hardware spinlock device Binding
+-----------------------------------------------
+
+Required properties :
+- compatible : shall contain only one of the following:
+	"sirf,hwspinlock"
+
+- reg : the register address of hwspinlock
+
+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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