From: Denis Osterland <Denis.Osterland@xxxxxxxxx>
Wrote documentation for ISL1208, ISL1218 device tree
binding with short examples.
Signed-off-by: Denis Osterland <Denis.Osterland@xxxxxxxxx>
Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx>
---
.../devicetree/bindings/rtc/intersil,isl1208.txt | 35 ++++++++++++++++++++++
1 file changed, 35 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rtc/intersil,isl1208.txt
diff --git a/Documentation/devicetree/bindings/rtc/intersil,isl1208.txt b/Documentation/devicetree/bindings/rtc/intersil,isl1208.txt
new file mode 100644
index 0000000000000..a54e99feae1ca
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/intersil,isl1208.txt
@@ -0,0 +1,35 @@
+Intersil ISL1208, ISL1218 I2C RTC/Alarm chip
+
+ISL1208 is a trivial I2C device (it has simple device tree bindings,
+consisting of a compatible field, an address and possibly an interrupt
+line).
+
+Required properties supported by the device:
+
+ - "compatible": must be one of
+ "isil,isl1208"
+ "isil,isl1218"
+ - "reg": I2C bus address of the device
+
+Optional properties:
+
+ - "interrupt-parent", "interrupts", "interrupts-extended":
+ for passing the interrupt line of the SoC connected to #IRQ pin
+ of the RTC chip.
+
+
+Example isl1208 node without #IRQ pin connected:
+
+ isl1208: isl1208@68 {
+ compatible = "isil,isl1208";
+ reg = <0x68>;
+ };
+
+Example isl1208 node with #IRQ pin connected to SoC gpio1 pin 12:
+
+ isl1208: isl1208@68 {
+ compatible = "isil,isl1208";
+ reg = <0x68>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <12 IRQ_TYPE_EDGE_FALLING>;
+ };
--
2.11.0
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