Documentation/devicetree/bindings/rtc/nvidia,tegra20-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/nvidia,tegra20-rtc.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: NVIDIA Tegra real-time clock
   8
   9 maintainers:
  10   - Thierry Reding <thierry.reding@gmail.com>
  11   - Jon Hunter <jonathanh@nvidia.com>
  12
  13 description: |
  14   The Tegra RTC maintains seconds and milliseconds counters, and five
  15   alarm registers. The alarms and other interrupts may wake the system
  16   from low-power state.
  17
  18 properties:
  19   compatible:
  20     oneOf:
  21       - const: nvidia,tegra20-rtc
  22       - items:
  23           - enum:
  24               - nvidia,tegra30-rtc
  25               - nvidia,tegra114-rtc
  26               - nvidia,tegra124-rtc
  27               - nvidia,tegra210-rtc
  28               - nvidia,tegra186-rtc
  29               - nvidia,tegra194-rtc
  30               - nvidia,tegra234-rtc
  31           - const: nvidia,tegra20-rtc
  32
  33   reg:
  34     maxItems: 1
  35
  36   interrupts:
  37     maxItems: 1
  38
  39   clocks:
  40     maxItems: 1
  41
  42   clock-names:
  43     items:
  44       - const: rtc
  45
  46 additionalProperties: false
  47
  48 required:
  49   - compatible
  50   - reg
  51   - interrupts
  52   - clocks
  53
  54 examples:
  55   - |
  56     timer@7000e000 {
  57         compatible = "nvidia,tegra20-rtc";
  58         reg = <0x7000e000 0x100>;
  59         interrupts = <0 2 0x04>;
  60         clocks = <&tegra_car 4>;
  61     };