Documentation/devicetree/bindings/rtc/ingenic,rtc.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/ingenic,rtc.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Ingenic SoCs Real-Time Clock DT bindings
   8
   9 maintainers:
  10   - Paul Cercueil <paul@crapouillou.net>
  11
  12 allOf:
  13   - $ref: rtc.yaml#
  14
  15 properties:
  16   compatible:
  17     oneOf:
  18       - enum:
  19           - ingenic,jz4740-rtc
  20           - ingenic,jz4760-rtc
  21       - items:
  22           - const: ingenic,jz4725b-rtc
  23           - const: ingenic,jz4740-rtc
  24       - items:
  25           - enum:
  26               - ingenic,jz4770-rtc
  27               - ingenic,jz4780-rtc
  28           - const: ingenic,jz4760-rtc
  29
  30   reg:
  31     maxItems: 1
  32
  33   interrupts:
  34     maxItems: 1
  35
  36   clocks:
  37     maxItems: 1
  38
  39   clock-names:
  40     const: rtc
  41
  42   system-power-controller:
  43     description: |
  44       Indicates that the RTC is responsible for powering OFF
  45       the system.
  46     type: boolean
  47
  48   ingenic,reset-pin-assert-time-ms:
  49     minimum: 0
  50     maximum: 125
  51     default: 60
  52     description: |
  53       Reset pin low-level assertion time after wakeup
  54       (assuming RTC clock at 32 kHz)
  55
  56   ingenic,min-wakeup-pin-assert-time-ms:
  57     minimum: 0
  58     maximum: 2000
  59     default: 100
  60     description: |
  61       Minimum wakeup pin assertion time
  62       (assuming RTC clock at 32 kHz)
  63
  64 required:
  65   - compatible
  66   - reg
  67   - interrupts
  68   - clocks
  69   - clock-names
  70
  71 examples:
  72   - |
  73     #include <dt-bindings/clock/jz4740-cgu.h>
  74     rtc_dev: rtc@10003000 {
  75       compatible = "ingenic,jz4740-rtc";
  76       reg = <0x10003000 0x40>;
  77
  78       interrupt-parent = <&intc>;
  79       interrupts = <15>;
  80
  81       clocks = <&cgu JZ4740_CLK_RTC>;
  82       clock-names = "rtc";
  83     };