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- 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>;
- };
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