| Tom Rini | 93743d2 | 2024-04-01 09:08:13 -0400 | [diff] [blame] | 1 | # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/rtc/adi,max31335.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Analog Devices MAX31335 RTC |
| 8 | |
| 9 | maintainers: |
| 10 | - Antoniu Miclaus <antoniu.miclaus@analog.com> |
| 11 | |
| 12 | description: |
| 13 | Analog Devices MAX31335 I2C RTC ±2ppm Automotive Real-Time Clock with |
| 14 | Integrated MEMS Resonator. |
| 15 | |
| 16 | allOf: |
| 17 | - $ref: rtc.yaml# |
| 18 | |
| 19 | properties: |
| 20 | compatible: |
| 21 | const: adi,max31335 |
| 22 | |
| 23 | reg: |
| 24 | maxItems: 1 |
| 25 | |
| 26 | interrupts: |
| 27 | maxItems: 1 |
| 28 | |
| 29 | "#clock-cells": |
| 30 | description: |
| 31 | RTC can be used as a clock source through its clock output pin. |
| 32 | const: 0 |
| 33 | |
| 34 | adi,tc-diode: |
| 35 | description: |
| 36 | Select the diode configuration for the trickle charger. |
| 37 | schottky - Schottky diode in series. |
| 38 | standard+schottky - standard diode + Schottky diode in series. |
| 39 | enum: [schottky, standard+schottky] |
| 40 | |
| 41 | trickle-resistor-ohms: |
| 42 | description: |
| 43 | Selected resistor for trickle charger. Should be specified if trickle |
| 44 | charger should be enabled. |
| 45 | enum: [3000, 6000, 11000] |
| 46 | |
| 47 | required: |
| 48 | - compatible |
| 49 | - reg |
| 50 | |
| 51 | unevaluatedProperties: false |
| 52 | |
| 53 | examples: |
| 54 | - | |
| 55 | #include <dt-bindings/interrupt-controller/irq.h> |
| 56 | i2c { |
| 57 | #address-cells = <1>; |
| 58 | #size-cells = <0>; |
| 59 | |
| 60 | rtc@68 { |
| 61 | compatible = "adi,max31335"; |
| 62 | reg = <0x68>; |
| 63 | pinctrl-0 = <&rtc_nint_pins>; |
| 64 | interrupts-extended = <&gpio1 16 IRQ_TYPE_LEVEL_HIGH>; |
| 65 | aux-voltage-chargeable = <1>; |
| 66 | trickle-resistor-ohms = <6000>; |
| 67 | adi,tc-diode = "schottky"; |
| 68 | }; |
| 69 | }; |
| 70 | ... |