Kernel-4.18.0-80.el8_mediatek-jpeg-decoder

  • Mediatek JPEG Decoder

Mediatek JPEG Decoder is the JPEG decode hardware present in Mediatek SoCs

Required properties:

  • compatible : must be one of the following string:
    “mediatek,mt8173-jpgdec”
    “mediatek,mt2701-jpgdec”
  • reg : physical base address of the jpeg decoder registers and length of
    memory mapped region.
  • interrupts : interrupt number to the interrupt controller.
  • clocks: device clocks, see
    Documentation/devicetree/bindings/clock/clock-bindings.txt for details.
  • clock-names: must contain “jpgdec-smi” and “jpgdec”.
  • power-domains: a phandle to the power domain, see
    Documentation/devicetree/bindings/power/power_domain.txt for details.
  • mediatek,larb: must contain the local arbiters in the current Socs, see
    Documentation/devicetree/bindings/memory-controllers/mediatek,smi-larb.txt
    for details.
  • iommus: should point to the respective IOMMU block with master port as
    argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.txt
    for details.

Example:
jpegdec: jpegdec@15004000 {
compatible = “mediatek,mt2701-jpgdec”;
reg = <0 0x15004000 0 0x1000>;
interrupts = <GIC_SPI 143 IRQ_TYPE_LEVEL_LOW>;
clocks = <&imgsys CLK_IMG_JPGDEC_SMI>,
<&imgsys CLK_IMG_JPGDEC>;
clock-names = “jpgdec-smi”,
“jpgdec”;
power-domains = <&scpsys MT2701_POWER_DOMAIN_ISP>;
mediatek,larb = <&larb2>;
iommus = <&iommu MT2701_M4U_PORT_JPGDEC_WDMA>,
<&iommu MT2701_M4U_PORT_JPGDEC_BSDMA>;
};