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]>

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>;
+};