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