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