mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 06:12:08 +00:00
b8eb83457e
Document RZ/G2 support. Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
35 lines
1.2 KiB
Plaintext
35 lines
1.2 KiB
Plaintext
Renesas R-Car Frame Compression Processor (FCP)
|
|
-----------------------------------------------
|
|
|
|
The FCP is a companion module of video processing modules in the Renesas R-Car
|
|
Gen3 and RZ/G2 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,fcpv" for generic compatible 'FCP for VSP'
|
|
- "renesas,fcpf" for generic compatible 'FCP for FDP'
|
|
|
|
- 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,fcpv";
|
|
reg = <0 0xfea2f000 0 0x200>;
|
|
clocks = <&cpg CPG_MOD 602>;
|
|
power-domains = <&sysc R8A7795_PD_A3VP>;
|
|
};
|