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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/rtc/ti,omap-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Texas Instruments OMAP Real Time Clock
maintainers:
- Keerthy <j-keerthy@ti.com>
- Afzal Mohammed <afzal@ti.com>
description:
The OMAP RTC is a year/month/day/hours/minutes/seconds BCD clock with
century-range alarm matching, driven by the 32kHz clock.
properties:
compatible:
oneOf:
- const: ti,da830-rtc
- items:
- const: ti,am3352-rtc
- const: ti,da830-rtc
- items:
- const: ti,am4372-rtc
- const: ti,am3352-rtc
- const: ti,da830-rtc
reg:
maxItems: 1
interrupts:
minItems: 2
maxItems: 2
system-power-controller:
type: boolean
description:
Indicates that this RTC controls system power via the pmic_power_en pin.
clocks:
minItems: 1
maxItems: 2
clock-names:
minItems: 1
items:
- enum: [ext-clk, int-clk]
- const: int-clk
pinctrl-0:
description:
Phandle to pin configuration for the external wakeup pins.
pinctrl-names:
minItems: 1
ti,hwmods:
$ref: /schemas/types.yaml#/definitions/string
description:
Name of the hwmod associated with the RTC.
const: rtc
deprecated: true
patternProperties:
"^ext-wakeup(-[0-9]+)?$":
type: object
description:
Child node describing external wakeup pin configuration.
properties:
pins:
pattern: '^ext_wakeup[0-3]$'
input-enable:
type: boolean
description:
Enables the external wakeup input on the selected pin.
ti,active-high:
type: boolean
description:
Sets the wakeup input polarity to active high. By default the
input is active low.
required:
- pins
additionalProperties: false
required:
- compatible
- reg
- interrupts
allOf:
- $ref: rtc.yaml#
- if:
not:
properties:
compatible:
contains:
const: ti,am3352-rtc
then:
properties:
system-power-controller: false
patternProperties:
"^ext-wakeup(-[0-9]+)?$": false
unevaluatedProperties: false
examples:
- |
rtc@23000 {
compatible = "ti,da830-rtc";
reg = <0x23000 0x1000>;
interrupts = <19>, <19>;
clocks = <&clk_32768_ck>;
clock-names = "int-clk";
};
- |
rtc@0 {
compatible = "ti,am3352-rtc", "ti,da830-rtc";
reg = <0x0 0x1000>;
interrupts = <75>, <76>;
system-power-controller;
clocks = <&clk_32k_rtc>, <&clk_32768_ck>;
clock-names = "ext-clk", "int-clk";
pinctrl-0 = <&ext_wakeup>;
pinctrl-names = "default";
ext-wakeup {
pins = "ext_wakeup0";
input-enable;
ti,active-high;
};
};
|
