# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id:
http://devicetree.org/schemas/rtc/adi,max31335.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: Analog Devices MAX31335 RTC
maintainers:
- Antoniu Miclaus <antoniu.miclaus@analog.com>
description:
Analog Devices MAX31335 I2C RTC ±2ppm Automotive Real-Time Clock with
Integrated MEMS Resonator.
allOf:
- $ref: rtc.yaml#
properties:
compatible:
enum:
- adi,max31331
- adi,max31335
reg:
maxItems: 1
interrupts:
maxItems: 1
"#clock-cells":
description:
RTC can be used as a clock source through its clock output pin.
const: 0
adi,tc-diode:
description:
Select the diode configuration for the trickle charger.
schottky - Schottky diode in series.
standard+schottky - standard diode + Schottky diode in series.
enum: [schottky, standard+schottky]
trickle-resistor-ohms:
description:
Selected resistor for trickle charger. Should be specified if trickle
charger should be enabled.
enum: [3000, 6000, 11000]
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
rtc@68 {
compatible = "adi,max31335";
reg = <0x68>;
pinctrl-0 = <&rtc_nint_pins>;
interrupts-extended = <&gpio1 16 IRQ_TYPE_LEVEL_HIGH>;
aux-voltage-chargeable = <1>;
trickle-resistor-ohms = <6000>;
adi,tc-diode = "schottky";
};
};
...
