Kernel-4.18.0-80.el8_mtk-hsdma

MediaTek High-Speed DMA Controller

This device follows the generic DMA bindings defined in dma/dma.txt.

Required properties:

• compatible: Must be one of

      "mediatek,mt7622-hsdma": for MT7622 SoC
      "mediatek,mt7623-hsdma": for MT7623 SoC
  

• reg: Should contain the register’s base address and length.

• interrupts: Should contain a reference to the interrupt used by this

    device.
  

• clocks: Should be the clock specifiers corresponding to the entry in

    clock-names property.
  

• clock-names: Should contain “hsdma” entries.

• power-domains: Phandle to the power domain that the device is part of

• #dma-cells: The length of the DMA specifier, must be <1>. This one cell

    in dmas property of a client device represents the channel
    number.
  

  Example:

    hsdma: dma-controller@1b007000 {
    compatible = "mediatek,mt7623-hsdma";
    reg = <0 0x1b007000 0 0x1000>;
    interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_LOW>;
    clocks = <&ethsys CLK_ETHSYS_HSDMA>;
    clock-names = "hsdma";
    power-domains = <&scpsys MT2701_POWER_DOMAIN_ETH>;
    #dma-cells = <1>;
  

  };

DMA clients must use the format described in dma/dma.txt file.