arm,mali-midgard.yaml

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    1 # SPDX-License-Identifier: GPL-2.0-only
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/gpu/arm,mali-midgard.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: ARM Mali Midgard GPU
    8 
    9 maintainers:
   10   - Rob Herring <robh@kernel.org>
   11 
   12 properties:
   13   $nodename:
   14     pattern: '^gpu@[a-f0-9]+$'
   15   compatible:
   16     oneOf:
   17       - items:
   18           - enum:
   19               - samsung,exynos5250-mali
   20           - const: arm,mali-t604
   21       - items:
   22           - enum:
   23               - samsung,exynos5420-mali
   24           - const: arm,mali-t628
   25       - items:
   26           - enum:
   27               - allwinner,sun50i-h6-mali
   28           - const: arm,mali-t720
   29       - items:
   30           - enum:
   31               - amlogic,meson-gxm-mali
   32               - realtek,rtd1295-mali
   33           - const: arm,mali-t820
   34       - items:
   35           - enum:
   36               - arm,juno-mali
   37           - const: arm,mali-t624
   38       - items:
   39           - enum:
   40               - rockchip,rk3288-mali
   41               - samsung,exynos5433-mali
   42           - const: arm,mali-t760
   43       - items:
   44           - enum:
   45               - rockchip,rk3399-mali
   46           - const: arm,mali-t860
   47 
   48           # "arm,mali-t830"
   49           # "arm,mali-t880"
   50 
   51   reg:
   52     maxItems: 1
   53 
   54   interrupts:
   55     items:
   56       - description: Job interrupt
   57       - description: MMU interrupt
   58       - description: GPU interrupt
   59 
   60   interrupt-names:
   61     items:
   62       - const: job
   63       - const: mmu
   64       - const: gpu
   65 
   66   clocks:
   67     minItems: 1
   68     maxItems: 2
   69 
   70   clock-names:
   71     minItems: 1
   72     items:
   73       - const: core
   74       - const: bus
   75 
   76   mali-supply: true
   77   opp-table: true
   78 
   79   power-domains:
   80     maxItems: 1
   81 
   82   resets:
   83     minItems: 1
   84     maxItems: 2
   85 
   86   operating-points-v2: true
   87 
   88   "#cooling-cells":
   89     const: 2
   90 
   91   dma-coherent: true
   92 
   93   dynamic-power-coefficient:
   94     $ref: '/schemas/types.yaml#/definitions/uint32'
   95     description:
   96       A u32 value that represents the running time dynamic
   97       power coefficient in units of uW/MHz/V^2. The
   98       coefficient can either be calculated from power
   99       measurements or derived by analysis.
  100 
  101       The dynamic power consumption of the GPU is
  102       proportional to the square of the Voltage (V) and
  103       the clock frequency (f). The coefficient is used to
  104       calculate the dynamic power as below -
  105 
  106       Pdyn = dynamic-power-coefficient * V^2 * f
  107 
  108       where voltage is in V, frequency is in MHz.
  109 
  110 required:
  111   - compatible
  112   - reg
  113   - interrupts
  114   - interrupt-names
  115   - clocks
  116 
  117 additionalProperties: false
  118 
  119 allOf:
  120   - if:
  121       properties:
  122         compatible:
  123           contains:
  124             const: allwinner,sun50i-h6-mali
  125     then:
  126       properties:
  127         clocks:
  128           minItems: 2
  129       required:
  130         - clock-names
  131         - resets
  132   - if:
  133       properties:
  134         compatible:
  135           contains:
  136             const: amlogic,meson-gxm-mali
  137     then:
  138       properties:
  139         resets:
  140           minItems: 2
  141       required:
  142         - resets
  143 
  144 examples:
  145   - |
  146     #include <dt-bindings/interrupt-controller/irq.h>
  147     #include <dt-bindings/interrupt-controller/arm-gic.h>
  148 
  149     gpu@ffa30000 {
  150       compatible = "rockchip,rk3288-mali", "arm,mali-t760";
  151       reg = <0xffa30000 0x10000>;
  152       interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>,
  153              <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>,
  154              <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
  155       interrupt-names = "job", "mmu", "gpu";
  156       clocks = <&cru 0>;
  157       mali-supply = <&vdd_gpu>;
  158       operating-points-v2 = <&gpu_opp_table>;
  159       power-domains = <&power 0>;
  160       #cooling-cells = <2>;
  161     };
  162 
  163     gpu_opp_table: opp-table {
  164       compatible = "operating-points-v2";
  165 
  166       opp-533000000 {
  167         opp-hz = /bits/ 64 <533000000>;
  168         opp-microvolt = <1250000>;
  169       };
  170       opp-450000000 {
  171         opp-hz = /bits/ 64 <450000000>;
  172         opp-microvolt = <1150000>;
  173       };
  174       opp-400000000 {
  175         opp-hz = /bits/ 64 <400000000>;
  176         opp-microvolt = <1125000>;
  177       };
  178       opp-350000000 {
  179         opp-hz = /bits/ 64 <350000000>;
  180         opp-microvolt = <1075000>;
  181       };
  182       opp-266000000 {
  183         opp-hz = /bits/ 64 <266000000>;
  184         opp-microvolt = <1025000>;
  185       };
  186       opp-160000000 {
  187         opp-hz = /bits/ 64 <160000000>;
  188         opp-microvolt = <925000>;
  189       };
  190       opp-100000000 {
  191         opp-hz = /bits/ 64 <100000000>;
  192         opp-microvolt = <912500>;
  193       };
  194     };
  195 
  196 ...

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sys/contrib/device-tree/Bindings/gpu/arm,mali-midgard.yaml