Documentation/devicetree/bindings/media/renesas,fcp.txt

   1 Renesas R-Car Frame Compression Processor (FCP)
   2 -----------------------------------------------
   3
   4 The FCP is a companion module of video processing modules in the Renesas R-Car
   5 Gen3 SoCs. It provides data compression and decompression, data caching, and
   6 conversion of AXI transactions in order to reduce the memory bandwidth.
   7
   8 There are three types of FCP: FCP for Codec (FCPC), FCP for VSP (FCPV) and FCP
   9 for FDP (FCPF). Their configuration and behaviour depend on the module they
  10 are paired with. These DT bindings currently support the FCPV and FCPF.
  11
  12  - compatible: Must be one or more of the following
  13
  14    - "renesas,r8a7795-fcpv" for R8A7795 (R-Car H3) compatible 'FCP for VSP'
  15    - "renesas,r8a7795-fcpf" for R8A7795 (R-Car H3) compatible 'FCP for FDP'
  16    - "renesas,fcpv" for generic compatible 'FCP for VSP'
  17    - "renesas,fcpf" for generic compatible 'FCP for FDP'
  18
  19    When compatible with the generic version, nodes must list the
  20    SoC-specific version corresponding to the platform first, followed by the
  21    family-specific and/or generic versions.
  22
  23  - reg: the register base and size for the device registers
  24  - clocks: Reference to the functional clock
  25
  26 Optional properties:
  27  - power-domains : power-domain property defined with a power domain specifier
  28                    to respective power domain.
  29
  30
  31 Device node example
  32 -------------------
  33
  34         fcpvd1: fcp@fea2f000 {
  35                 compatible = "renesas,r8a7795-fcpv", "renesas,fcpv";
  36                 reg = <0 0xfea2f000 0 0x200>;
  37                 clocks = <&cpg CPG_MOD 602>;
  38                 power-domains = <&sysc R8A7795_PD_A3VP>;
  39         };