linux/linux-5.4.31/Documentation/devicetree/bindings/gpu/arm,mali-midgard.yaml

# SPDX-License-Identifier: GPL-2.0-only
%YAML 1.2
---
$id: http://devicetree.org/schemas/gpu/arm,mali-midgard.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: ARM Mali Midgard GPU

maintainers:
  - Rob Herring <robh@kernel.org>

properties:
  $nodename:
    pattern: '^gpu@[a-f0-9]+$'
  compatible:
    oneOf:
      - items:
          - enum:
             - allwinner,sun50i-h6-mali
          - const: arm,mali-t720
      - items:
          - enum:
             - amlogic,meson-gxm-mali
          - const: arm,mali-t820
      - items:
          - enum:
             - rockchip,rk3288-mali
          - const: arm,mali-t760
      - items:
          - enum:
             - rockchip,rk3399-mali
          - const: arm,mali-t860
      - items:
          - enum:
             - samsung,exynos5250-mali
          - const: arm,mali-t604
      - items:
          - enum:
             - samsung,exynos5433-mali
          - const: arm,mali-t760

          # "arm,mali-t624"
          # "arm,mali-t628"
          # "arm,mali-t830"
          # "arm,mali-t880"

  reg:
    maxItems: 1

  interrupts:
    items:
      - description: Job interrupt
      - description: MMU interrupt
      - description: GPU interrupt

  interrupt-names:
    items:
      - const: job
      - const: mmu
      - const: gpu

  clocks:
    minItems: 1
    maxItems: 2

  clock-names:
    minItems: 1
    items:
      - const: core
      - const: bus

  mali-supply:
    maxItems: 1

  resets:
    minItems: 1
    maxItems: 2

  operating-points-v2: true

  "#cooling-cells":
    const: 2

required:
  - compatible
  - reg
  - interrupts
  - interrupt-names
  - clocks

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: allwinner,sun50i-h6-mali
    then:
      properties:
        clocks:
          minItems: 2
      required:
        - clock-names
        - resets
  - if:
      properties:
        compatible:
          contains:
            const: amlogic,meson-gxm-mali
    then:
      properties:
        resets:
          minItems: 2
      required:
        - resets

examples:
  - |
    #include <dt-bindings/interrupt-controller/irq.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    gpu@ffa30000 {
      compatible = "rockchip,rk3288-mali", "arm,mali-t760";
      reg = <0xffa30000 0x10000>;
      interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
             <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
             <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
      interrupt-names = "job", "mmu", "gpu";
      clocks = <&cru 0>;
      mali-supply = <&vdd_gpu>;
      operating-points-v2 = <&gpu_opp_table>;
      power-domains = <&power 0>;
      #cooling-cells = <2>;
    };

    gpu_opp_table: opp_table0 {
      compatible = "operating-points-v2";

      opp@533000000 {
        opp-hz = /bits/ 64 <533000000>;
        opp-microvolt = <1250000>;
      };
      opp@450000000 {
        opp-hz = /bits/ 64 <450000000>;
        opp-microvolt = <1150000>;
      };
      opp@400000000 {
        opp-hz = /bits/ 64 <400000000>;
        opp-microvolt = <1125000>;
      };
      opp@350000000 {
        opp-hz = /bits/ 64 <350000000>;
        opp-microvolt = <1075000>;
      };
      opp@266000000 {
        opp-hz = /bits/ 64 <266000000>;
        opp-microvolt = <1025000>;
      };
      opp@160000000 {
        opp-hz = /bits/ 64 <160000000>;
        opp-microvolt = <925000>;
      };
      opp@100000000 {
        opp-hz = /bits/ 64 <100000000>;
        opp-microvolt = <912500>;
      };
    };

...