FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/media/s5p-mfc.txt

     * Samsung Multi Format Codec (MFC)
     
     Multi Format Codec (MFC) is the IP present in Samsung SoCs which
     supports high resolution decoding and encoding functionalities.
     The MFC device driver is a v4l2 driver which can encode/decode
     video raw/elementary streams and has support for all popular
     video codecs.
     
     Required properties:
      - compatible : value should be either one among the following
            (a) "samsung,mfc-v5" for MFC v5 present in Exynos4 SoCs
            (b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs
            (c) "samsung,mfc-v7" for MFC v7 present in Exynos5420 SoC
            (d) "samsung,mfc-v8" for MFC v8 present in Exynos5800 SoC
            (e) "samsung,exynos5433-mfc" for MFC v8 present in Exynos5433 SoC
            (f) "samsung,mfc-v10" for MFC v10 present in Exynos7880 SoC
    
      - reg : Physical base address of the IP registers and length of memory
              mapped region.
    
      - interrupts : MFC interrupt number to the CPU.
      - clocks : from common clock binding: handle to mfc clock.
      - clock-names : from common clock binding: must contain "mfc",
                      corresponding to entry in the clocks property.
    
    Optional properties:
      - power-domains : power-domain property defined with a phandle
                               to respective power domain.
      - memory-region : from reserved memory binding: phandles to two reserved
            memory regions, first is for "left" mfc memory bus interfaces,
            second if for the "right" mfc memory bus, used when no SYSMMU
            support is available; used only by MFC v5 present in Exynos4 SoCs
    
    Obsolete properties:
      - samsung,mfc-r, samsung,mfc-l : support removed, please use memory-region
            property instead
    
    
    Example:
    SoC specific DT entry:
    
    mfc: codec@13400000 {
            compatible = "samsung,mfc-v5";
            reg = <0x13400000 0x10000>;
            interrupts = <0 94 0>;
            power-domains = <&pd_mfc>;
            clocks = <&clock 273>;
            clock-names = "mfc";
    };
    
    Reserved memory specific DT entry for given board (see reserved memory binding
    for more information):
    
    reserved-memory {
            #address-cells = <1>;
            #size-cells = <1>;
            ranges;
    
            mfc_left: region@51000000 {
                    compatible = "shared-dma-pool";
                    no-map;
                    reg = <0x51000000 0x800000>;
            };
    
            mfc_right: region@43000000 {
                    compatible = "shared-dma-pool";
                    no-map;
                    reg = <0x43000000 0x800000>;
            };
    };
    
    Board specific DT entry:
    
    codec@13400000 {
            memory-region = <&mfc_left>, <&mfc_right>;
    };

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