Kernel-4.18.0-80.el8_qcom,venus

• Qualcomm Venus video encoder/decoder accelerators

• compatible:
  Usage: required
  Value type:
  Definition: Value should contain one of:

    - "qcom,msm8916-venus"
    - "qcom,msm8996-venus"
  

• reg:
  Usage: required
  Value type:
  Definition: Register base address and length of the register map.
• interrupts:
  Usage: required
  Value type:
  Definition: Should contain interrupt line number.
• clocks:
  Usage: required
  Value type:
  Definition: A List of phandle and clock specifier pairs as listed

        in clock-names property.
  

• clock-names:
  Usage: required for msm8916
  Value type:
  Definition: Should contain the following entries:

    - "core"    Core video accelerator clock
    - "iface"    Video accelerator AHB clock
    - "bus"        Video accelerator AXI clock
  

• clock-names:
  Usage: required for msm8996
  Value type:
  Definition: Should contain the following entries:

    - "core"    Core video accelerator clock
    - "iface"    Video accelerator AHB clock
    - "bus"        Video accelerator AXI clock
    - "mbus"    Video MAXI clock
  

• power-domains:
  Usage: required
  Value type:
  Definition: A phandle and power domain specifier pairs to the

        power domain which is responsible for collapsing
        and restoring power to the peripheral.
  

• iommus:
  Usage: required
  Value type:
  Definition: A list of phandle and IOMMU specifier pairs.
• memory-region:
  Usage: required
  Value type:
  Definition: reference to the reserved-memory for the firmware

        memory region.
  

• Subnodes
  The Venus video-codec node must contain two subnodes representing
  video-decoder and video-encoder.

Every of video-encoder or video-decoder subnode should have:

• compatible:
  Usage: required
  Value type:
  Definition: Value should contain “venus-decoder” or “venus-encoder”

• clocks:
  Usage: required for msm8996
  Value type:
  Definition: A List of phandle and clock specifier pairs as listed

        in clock-names property.
  

• clock-names:
  Usage: required for msm8996
  Value type:
  Definition: Should contain the following entries:

    - "core"    Subcore video accelerator clock
  

• power-domains:
  Usage: required for msm8996
  Value type:
  Definition: A phandle and power domain specifier pairs to the

        power domain which is responsible for collapsing
        and restoring power to the subcore.
  

• An Example
  video-codec@1d00000 {

    compatible = "qcom,msm8916-venus";
    reg = <0x01d00000 0xff000>;
    interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
    clocks = <&gcc GCC_VENUS0_VCODEC0_CLK>,
         <&gcc GCC_VENUS0_AHB_CLK>,
         <&gcc GCC_VENUS0_AXI_CLK>;
    clock-names = "core", "iface", "bus";
    power-domains = <&gcc VENUS_GDSC>;
    iommus = <&apps_iommu 5>;
    memory-region = <&venus_mem>;
  
    video-decoder {
        compatible = "venus-decoder";
        clocks = <&mmcc VIDEO_SUBCORE0_CLK>;
        clock-names = "core";
        power-domains = <&mmcc VENUS_CORE0_GDSC>;
    };
  
    video-encoder {
        compatible = "venus-encoder";
        clocks = <&mmcc VIDEO_SUBCORE1_CLK>;
        clock-names = "core";
        power-domains = <&mmcc VENUS_CORE1_GDSC>;
    };
  

  };