dt-bindings: arm: Add NVIDIA Tegra194 CPU Complex binding

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

%YAML 1.2

---

$id: "http://devicetree.org/schemas/arm/nvidia,tegra194-ccplex.yaml#"

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

title: NVIDIA Tegra194 CPU Complex device tree bindings

maintainers:

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

  - Jonathan Hunter <jonathanh@nvidia.com>

  - Sumit Gupta <sumitg@nvidia.com>

description: |+

  Tegra194 SOC has homogeneous architecture where each cluster has two

  symmetric cores. Compatible string in "cpus" node represents the CPU

  Complex having all clusters.

properties:

  $nodename:

    const: cpus

  compatible:

    enum:

      - nvidia,tegra194-ccplex

  nvidia,bpmp:

    $ref: '/schemas/types.yaml#/definitions/phandle'

    description: |

      Specifies the bpmp node that needs to be queried to get

      operating point data for all CPUs.

examples:

  - |

    cpus {

      compatible = "nvidia,tegra194-ccplex";

      nvidia,bpmp = <&bpmp>;

      #address-cells = <1>;

      #size-cells = <0>;

      cpu0_0: cpu@0 {

        compatible = "nvidia,tegra194-carmel";

        device_type = "cpu";

        reg = <0x0>;

        enable-method = "psci";

      };

      cpu0_1: cpu@1 {

        compatible = "nvidia,tegra194-carmel";

        device_type = "cpu";

        reg = <0x001>;

        enable-method = "psci";

      };

      cpu1_0: cpu@100 {

        compatible = "nvidia,tegra194-carmel";

        device_type = "cpu";

        reg = <0x100>;

        enable-method = "psci";

      };

      cpu1_1: cpu@101 {

        compatible = "nvidia,tegra194-carmel";

        device_type = "cpu";

        reg = <0x101>;

        enable-method = "psci";

      };

    };

...