[PATCH 1/2 v3] watchdog: bcm7038: add device tree binding documentation

[Justin Chen]

Add device tree binding documentation for the watchdog hardware block
on bcm7038 and newer SoCs.

Signed-off-by: Justin Chen <justinpopo6@xxxxxxxxx>
Acked-by: Guenter Roeck <linux@xxxxxxxxxxxx>
---
 .../devicetree/bindings/watchdog/brcm,bcm7038-wdt.txt | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.txt b/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.txt
new file mode 100644
index 0000000..39e5cf5
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/brcm,bcm7038-wdt.txt
@@ -0,0 +1,19 @@
+BCM7038 Watchdog timer
+
+Required properties:
+
+- compatible : should be "brcm,bcm7038-wdt"
+- reg : Specifies base physical address and size of the registers.
+
+Optional properties:
+
+- clocks: The clock running the watchdog. If no clock is found the
+	  driver will default to 27000000 HZ.
+
+Example:
+
+watchdog {
+	compatible = "brcm,bcm7038-wdt";
+	clocks = <&upg_fixed>;
+	reg = <0xf040a7e8 0x16>;
+};
-- 
2.1.0

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