| Renesas R-Car Frame Compression Processor (FCP) |
| ----------------------------------------------- |
| |
| The FCP is a companion module of video processing modules in the Renesas R-Car |
| Gen3 SoCs. It provides data compression and decompression, data caching, and |
| conversion of AXI transactions in order to reduce the memory bandwidth. |
| |
| There are three types of FCP: FCP for Codec (FCPC), FCP for VSP (FCPV) and FCP |
| for FDP (FCPF). Their configuration and behaviour depend on the module they |
| are paired with. These DT bindings currently support the FCPV and FCPF. |
| |
| - compatible: Must be one or more of the following |
| |
| - "renesas,r8a7795-fcpv" for R8A7795 (R-Car H3) compatible 'FCP for VSP' |
| - "renesas,r8a7795-fcpf" for R8A7795 (R-Car H3) compatible 'FCP for FDP' |
| - "renesas,fcpv" for generic compatible 'FCP for VSP' |
| - "renesas,fcpf" for generic compatible 'FCP for FDP' |
| |
| When compatible with the generic version, nodes must list the |
| SoC-specific version corresponding to the platform first, followed by the |
| family-specific and/or generic versions. |
| |
| - reg: the register base and size for the device registers |
| - clocks: Reference to the functional clock |
| |
| Optional properties: |
| - power-domains : power-domain property defined with a power domain specifier |
| to respective power domain. |
| |
| |
| Device node example |
| ------------------- |
| |
| fcpvd1: fcp@fea2f000 { |
| compatible = "renesas,r8a7795-fcpv", "renesas,fcpv"; |
| reg = <0 0xfea2f000 0 0x200>; |
| clocks = <&cpg CPG_MOD 602>; |
| power-domains = <&sysc R8A7795_PD_A3VP>; |
| }; |
