# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id:
http://devicetree.org/schemas/rtc/isil,isl1208.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: Intersil ISL1209/19 I2C RTC/Alarm chip with event in
maintainers:
- Biju Das <biju.das.jz@bp.renesas.com>
- Trent Piepho <tpiepho@gmail.com>
description:
ISL12X9 have additional pins EVIN and EVDET for tamper detection, while the
ISL1208 and ISL1218 do not.
properties:
compatible:
enum:
- isil,isl1208
- isil,isl1209
- isil,isl1218
- isil,isl1219
reg:
maxItems: 1
clocks:
maxItems: 1
clock-names:
description: |
Use xin, if connected to an external crystal.
Use clkin, if connected to an external clock signal.
enum:
- xin
- clkin
interrupts:
minItems: 1
maxItems: 2
interrupt-names:
minItems: 1
items:
- const: irq
- const: evdet
isil,ev-evienb:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [ 0, 1 ]
description: |
Enable or disable internal pull on EVIN pin
Default will leave the non-volatile configuration of the pullup
as is.
<0> : Enables internal pull-up on evin pin
<1> : Disables internal pull-up on evin pin
required:
- compatible
- reg
allOf:
- $ref: rtc.yaml#
- if:
properties:
compatible:
contains:
enum:
- isil,isl1209
- isil,isl1219
then:
properties:
interrupts:
maxItems: 2
interrupt-names:
items:
- const: irq
- const: evdet
else:
properties:
interrupts:
maxItems: 1
interrupt-names:
items:
- const: irq
unevaluatedProperties: false
examples:
- |
i2c {
#address-cells = <1>;
#size-cells = <0>;
rtc_twi: rtc@6f {
compatible = "isil,isl1208";
reg = <0x6f>;
};
};
