dt: watchdog: Add DT binding documentation for jz4740 watchdog timer

Add binding for jz4740 watchdog timer. It is a simple watchdog timer. Signed-off-by: Zubair Lutfullah Kakakhel <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Signed-off-by: Wim Van Sebroeck <[email protected]>
ambv · Feb 17, 2015 · 73af152 · 73af152
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diff --git a/Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt b/Documentation/devicetree/bindings/watchdog/ingenic,jz4740-wdt.txt
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+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>;
+};