rtc-ds1307.yaml

  1# SPDX-License-Identifier: GPL-2.0
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/rtc/rtc-ds1307.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Dallas DS1307 and compatible RTC
  8
  9maintainers:
 10  - Alexandre Belloni <alexandre.belloni@bootlin.com>
 11
 12properties:
 13  compatible:
 14    oneOf:
 15      - enum:
 16          - dallas,ds1307
 17          - dallas,ds1308
 18          - dallas,ds1337
 19          - dallas,ds1338
 20          - dallas,ds1339
 21          - dallas,ds1388
 22          - dallas,ds1340
 23          - dallas,ds1341
 24          - maxim,ds3231
 25          - st,m41t0
 26          - st,m41t00
 27          - st,m41t11
 28          - microchip,mcp7940x
 29          - microchip,mcp7941x
 30          - pericom,pt7c4338
 31          - epson,rx8025
 32          - isil,isl12057
 33          - epson,rx8130
 34
 35      - items:
 36          - enum:
 37              - st,m41t00
 38          - const: dallas,ds1338
 39
 40  reg:
 41    maxItems: 1
 42
 43  interrupts:
 44    minItems: 1
 45    maxItems: 2
 46
 47  interrupt-names:
 48    maxItems: 2
 49
 50  "#clock-cells":
 51    const: 1
 52
 53  clock-output-names:
 54    description: From common clock binding to override the default output clock name.
 55
 56  wakeup-source:
 57    description: Enables wake up of host system on alarm.
 58
 59  vcc-supply: true
 60
 61allOf:
 62  - $ref: rtc.yaml
 63  - if:
 64      properties:
 65        compatible:
 66          contains:
 67            enum:
 68              - dallas,ds1339
 69              - dallas,ds1340
 70              - dallas,ds1388
 71    then:
 72      properties:
 73        trickle-resistor-ohms:
 74          description: Selected resistor for trickle charger. Should be specified if trickle
 75            charger should be enabled.
 76          enum: [ 250, 2000, 4000 ]
 77
 78        trickle-diode-disable:
 79          description: Do not use internal trickle charger diode. Should be given if internal
 80            trickle charger diode should be disabled (superseded by aux-voltage-chargeable)
 81          deprecated: true
 82
 83unevaluatedProperties: false
 84
 85required:
 86  - compatible
 87  - reg
 88
 89examples:
 90  - |
 91    i2c {
 92      #address-cells = <1>;
 93      #size-cells = <0>;
 94
 95      rtc@68 {
 96        compatible = "dallas,ds1337";
 97        reg = <0x68>;
 98        interrupt-parent = <&gpio4>;
 99        interrupts = <20 0>;
100        trickle-resistor-ohms = <250>;
101      };
102    };