| * 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 |
| |
| - 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 |
| |
| 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>; |
| }; |