Documentation/devicetree/bindings/dma/8250_mtk_dma.txt

   1 * Mediatek UART APDMA Controller
   2
   3 Required properties:
   4 - compatible should contain:
   5   * "mediatek,mt2712-uart-dma" for MT2712 compatible APDMA
   6   * "mediatek,mt6577-uart-dma" for MT6577 and all of the above
   7
   8 - reg: The base address of the APDMA register bank.
   9
  10 - interrupts: A single interrupt specifier.
  11
  12 - clocks : Must contain an entry for each entry in clock-names.
  13   See ../clocks/clock-bindings.txt for details.
  14 - clock-names: The APDMA clock for register accesses
  15
  16 Examples:
  17
  18         apdma: dma-controller@11000380 {
  19                 compatible = "mediatek,mt2712-uart-dma";
  20                 reg = <0 0x11000380 0 0x400>;
  21                 interrupts = <GIC_SPI 63 IRQ_TYPE_LEVEL_LOW>,
  22                              <GIC_SPI 64 IRQ_TYPE_LEVEL_LOW>,
  23                              <GIC_SPI 65 IRQ_TYPE_LEVEL_LOW>,
  24                              <GIC_SPI 66 IRQ_TYPE_LEVEL_LOW>,
  25                              <GIC_SPI 67 IRQ_TYPE_LEVEL_LOW>,
  26                              <GIC_SPI 68 IRQ_TYPE_LEVEL_LOW>,
  27                              <GIC_SPI 69 IRQ_TYPE_LEVEL_LOW>,
  28                              <GIC_SPI 70 IRQ_TYPE_LEVEL_LOW>;
  29                 clocks = <&pericfg CLK_PERI_AP_DMA>;
  30                 clock-names = "apdma";
  31                 #dma-cells = <1>;
  32         };
  33