| # 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: |
| const: 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"; |
| }; |
| }; |
| ... |
