1* Samsung Multi Format Codec (MFC) 2 3Multi Format Codec (MFC) is the IP present in Samsung SoCs which 4supports high resolution decoding and encoding functionalities. 5The MFC device driver is a v4l2 driver which can encode/decode 6video raw/elementary streams and has support for all popular 7video codecs. 8 9Required properties: 10 - compatible : value should be either one among the following 11 (a) "samsung,mfc-v5" for MFC v5 present in Exynos4 SoCs 12 (b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs 13 (c) "samsung,mfc-v7" for MFC v7 present in Exynos5420 SoC 14 (d) "samsung,mfc-v8" for MFC v8 present in Exynos5800 SoC 15 16 - reg : Physical base address of the IP registers and length of memory 17 mapped region. 18 19 - interrupts : MFC interrupt number to the CPU. 20 - clocks : from common clock binding: handle to mfc clock. 21 - clock-names : from common clock binding: must contain "mfc", 22 corresponding to entry in the clocks property. 23 24Optional properties: 25 - power-domains : power-domain property defined with a phandle 26 to respective power domain. 27 - memory-region : from reserved memory binding: phandles to two reserved 28 memory regions, first is for "left" mfc memory bus interfaces, 29 second if for the "right" mfc memory bus, used when no SYSMMU 30 support is available 31 32Obsolete properties: 33 - samsung,mfc-r, samsung,mfc-l : support removed, please use memory-region 34 property instead 35 36 37Example: 38SoC specific DT entry: 39 40mfc: codec@13400000 { 41 compatible = "samsung,mfc-v5"; 42 reg = <0x13400000 0x10000>; 43 interrupts = <0 94 0>; 44 power-domains = <&pd_mfc>; 45 clocks = <&clock 273>; 46 clock-names = "mfc"; 47}; 48 49Reserved memory specific DT entry for given board (see reserved memory binding 50for more information): 51 52reserved-memory { 53 #address-cells = <1>; 54 #size-cells = <1>; 55 ranges; 56 57 mfc_left: region@51000000 { 58 compatible = "shared-dma-pool"; 59 no-map; 60 reg = <0x51000000 0x800000>; 61 }; 62 63 mfc_right: region@43000000 { 64 compatible = "shared-dma-pool"; 65 no-map; 66 reg = <0x43000000 0x800000>; 67 }; 68}; 69 70Board specific DT entry: 71 72codec@13400000 { 73 memory-region = <&mfc_left>, <&mfc_right>; 74}; 75