diff options
| author | Denis Osterland <Denis.Osterland@diehl.com> | 2018-07-24 11:31:22 +0000 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2018-08-14 23:24:46 +0200 |
| commit | 6f7ea94acbb751f617bfd674086b388460ee5b3b (patch) | |
| tree | a2b66b71bcfbd517db7c1dd7334933e07c71f593 | |
| parent | cfa30622c854747aba9c920c7dd30e5a123a414f (diff) | |
rtc: isl1219: add device tree documentation
The devicetree documentation for the ISL1219 device tree
binding is added with a short example. It is not a trivial
device, because it supports two interrupt sources.
Signed-off-by: Denis Osterland <Denis.Osterland@diehl.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| -rw-r--r-- | Documentation/devicetree/bindings/rtc/isil,isl1219.txt | 29 |
1 files changed, 29 insertions, 0 deletions
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>; + }; + |