[PATCH 3/3] dt-bindings: rtc: sd3078: add device tree documentation

[zoro]

The devicetree documentation for the SD3078 device tree
binding is added with a short example.

Signed-off-by: zoro <long17.cool@xxxxxxx>
---
 .../devicetree/bindings/rtc/rtc-sd3078.txt         |   13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rtc/rtc-sd3078.txt

diff --git a/Documentation/devicetree/bindings/rtc/rtc-sd3078.txt b/Documentation/devicetree/bindings/rtc/rtc-sd3078.txt
new file mode 100644
index 0000000..676cee8
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/rtc-sd3078.txt
@@ -0,0 +1,13 @@
+SD3078 Real Time Clock
+============================
+
+Required properties:
+- compatible: Should contain "whwave,sd3078".
+- reg: I2C address for chip.
+
+Example:
+
+sd3078: sd3078@32 {
+       compatible = "whwave,sd3078";
+       reg = <0x32>;
+};
-- 
1.7.9.5