bindings/rtc/nxp,pcf85063.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/rtc/nxp,pcf85063.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NXP PCF85063 Real Time Clock
   8
   9 maintainers:
  10   - Alexander Stein <alexander.stein@ew.tq-group.com>
  11
  12 properties:
  13   compatible:
  14     enum:
  15       - microcrystal,rv8263
  16       - nxp,pcf85063
  17       - nxp,pcf85063a
  18       - nxp,pcf85063tp
  19       - nxp,pca85073a
  20
  21   reg:
  22     maxItems: 1
  23
  24   "#clock-cells":
  25     const: 0
  26
  27   clock-output-names:
  28     maxItems: 1
  29
  30   interrupts:
  31     maxItems: 1
  32
  33   quartz-load-femtofarads:
  34     description:
  35       The capacitive load of the quartz(x-tal).
  36     enum: [7000, 12500]
  37     default: 7000
  38
  39   clock:
  40     $ref: /schemas/clock/fixed-clock.yaml
  41     description:
  42       Provide this if the square wave pin is used as boot-enabled
  43       fixed clock.
  44
  45   wakeup-source: true
  46
  47 allOf:
  48   - $ref: rtc.yaml#
  49   - if:
  50       properties:
  51         compatible:
  52           contains:
  53             enum:
  54               - microcrystal,rv8263
  55     then:
  56       properties:
  57         quartz-load-femtofarads: false
  58   - if:
  59       properties:
  60         compatible:
  61           contains:
  62             enum:
  63               - nxp,pcf85063
  64     then:
  65       properties:
  66         quartz-load-femtofarads:
  67           const: 7000
  68
  69 required:
  70   - compatible
  71   - reg
  72
  73 additionalProperties: false
  74
  75 examples:
  76   - |
  77     i2c {
  78         #address-cells = <1>;
  79         #size-cells = <0>;
  80
  81         rtc@51 {
  82           compatible = "nxp,pcf85063a";
  83           reg = <0x51>;
  84           quartz-load-femtofarads = <12500>;
  85
  86           clock {
  87             compatible = "fixed-clock";
  88             #clock-cells = <0>;
  89             clock-frequency = <32768>;
  90           };
  91         };
  92       };