[PATCH_V3 1/2] dt: watchdog: Add DT binding documentation for jz4740 watchdog timer

[Zubair Lutfullah Kakakhel]

Add binding for jz4740 watchdog timer. It is a simple watchdog timer.

Signed-off-by: Zubair Lutfullah Kakakhel <Zubair.Kakakhel@xxxxxxxxxx>
Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

---
The jz4740 is platform only at the moment.

But DT support is being added

See http://patchwork.linux-mips.org/bundle/paulburton/ci20-v3.20/

V3: Added Reviewed-by: Guenter Roeck <linux@xxxxxxxxxxxx>

V2 Changes

Removed clock binding because of pending work in clock tree. Will add
binding later. Rather than introduce a bad binding now and change later.

Renamed to jz4740 instead of jz47xx.
---
 .../devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt      | 12 ++++++++++++
 1 file changed, 12 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt b/Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt
new file mode 100644
index 0000000..e27763e
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt
@@ -0,0 +1,12 @@
+Ingenic Watchdog Timer (WDT) Controller for JZ4740
+
+Required properties:
+compatible: "ingenic,jz4740-watchdog"
+reg: Register address and length for watchdog registers
+
+Example:
+
+watchdog: jz4740-watchdog@0x10002000 {
+	compatible = "ingenic,jz4740-watchdog";
+	reg = <0x10002000 0x100>;
+};
-- 
1.9.1

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