From: Denis Osterland <Denis.Osterland@xxxxxxxxx>
The devicetree documentation for the ISL1219 device tree
binding is added with an short example. It is not a trivial
device, because it supports two interrupt sources.
Signed-off-by: Denis Osterland <Denis.Osterland@xxxxxxxxx>
---
.../devicetree/bindings/rtc/isil,isl1219.txt | 29 +++++++++++++++++++
1 file changed, 29 insertions(+)
create mode 100644 Documentation/devicetree/bindings/rtc/isil,isl1219.txt
diff --git a/Documentation/devicetree/bindings/rtc/isil,isl1219.txt b/Documentation/devicetree/bindings/rtc/isil,isl1219.txt
new file mode 100644
index 000000000000..c3efd48e91c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/isil,isl1219.txt
@@ -0,0 +1,29 @@
+Intersil ISL1219 I2C RTC/Alarm chip with event in
+
+ISL1219 has additional pins EVIN and #EVDET for tamper detection.
+
+Required properties supported by the device:
+
+ - "compatible": must be "isil,isl1219"
+ - "reg": I2C bus address of the device
+
+Optional properties:
+
+ - "interrupt-names": list which may contains "irq" and "evdet"
+ - "interrupts": list of interrupts for "irq" and "evdet"
+ - "isil,ev-evienb": if present EV.EVIENB bit is set to the specified
+ value for proper operation.
+
+
+Example isl1219 node with #IRQ pin connected to SoC gpio1 pin12
+ and #EVDET pin connected to SoC gpio2 pin 24:
+
+ isl1219: rtc@68 {
+ compatible = "isil,isl1219";
+ reg = <0x68>;
+ interrupt-names = "irq", "evdet";
+ interrupts-extended = <&gpio1 12 IRQ_TYPE_EDGE_FALLING>,
+ <&gpio2 24 IRQ_TYPE_EDGE_FALLING>;
+ isil,ev-evienb = <1>;
+ };
+
--
2.18.0
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