Commit 2f9df754 authored by Thierry Reding's avatar Thierry Reding
Browse files

dt-bindings: rtc: tegra: Convert to json-schema 



Convert the NVIDIA Tegra RTC bindings from the free-form text format to
json-schema.

Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarThierry Reding <treding@nvidia.com>
parent 0637af94

Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.txt

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NVIDIA Tegra20 real-time clock



The Tegra RTC maintains seconds and milliseconds counters, and five alarm

registers. The alarms and other interrupts may wake the system from low-power

state.



Required properties:



- compatible : For Tegra20, must contain "nvidia,tegra20-rtc".  Otherwise,

  must contain '"nvidia,<chip>-rtc", "nvidia,tegra20-rtc"', where <chip>

  can be tegra30, tegra114, tegra124, or tegra132.

- reg : Specifies base physical address and size of the registers.

- interrupts : A single interrupt specifier.

- clocks : Must contain one entry, for the module clock.

  See ../clocks/clock-bindings.txt for details.



Example:



timer {

	compatible = "nvidia,tegra20-rtc";

	reg = <0x7000e000 0x100>;

	interrupts = <0 2 0x04>;

	clocks = <&tegra_car 4>;

};

Documentation/devicetree/bindings/rtc/nvidia,tegra20-rtc.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/rtc/nvidia,tegra20-rtc.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: NVIDIA Tegra real-time clock



maintainers:

  - Thierry Reding <thierry.reding@gmail.com>

  - Jon Hunter <jonathanh@nvidia.com>



description: |

  The Tegra RTC maintains seconds and milliseconds counters, and five

  alarm registers. The alarms and other interrupts may wake the system

  from low-power state.



properties:

  compatible:

    oneOf:

      - const: nvidia,tegra20-rtc

      - items:

          - enum:

              - nvidia,tegra30-rtc

              - nvidia,tegra114-rtc

              - nvidia,tegra124-rtc

              - nvidia,tegra210-rtc

              - nvidia,tegra186-rtc

              - nvidia,tegra194-rtc

          - const: nvidia,tegra20-rtc



  reg:

    maxItems: 1



  interrupts:

    maxItems: 1



  clocks:

    maxItems: 1



  clock-names:

    items:

      - const: rtc



additionalProperties: false



required:

  - compatible

  - reg

  - interrupts

  - clocks



examples:

  - |

    timer@7000e000 {

        compatible = "nvidia,tegra20-rtc";

        reg = <0x7000e000 0x100>;

        interrupts = <0 2 0x04>;

        clocks = <&tegra_car 4>;

    };