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     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       };
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