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 <Zubair.Kakakhel@imgtec.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 12 insertions, 0 deletions

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 000000000000..e27763ef0049
--- /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>;
+};