| # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| %YAML 1.2 |
| --- |
| $id: http://devicetree.org/schemas/media/renesas,fcp.yaml# |
| $schema: http://devicetree.org/meta-schemas/core.yaml# |
| |
| title: Renesas R-Car Frame Compression Processor (FCP) |
| |
| maintainers: |
| - Laurent Pinchart <laurent.pinchart@ideasonboard.com> |
| |
| description: | |
| 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. |
| |
| properties: |
| compatible: |
| oneOf: |
| - enum: |
| - renesas,fcpv # FCP for VSP |
| - renesas,fcpf # FCP for FDP |
| - items: |
| - enum: |
| - renesas,r9a07g044-fcpvd # RZ/G2{L,LC} |
| - renesas,r9a07g054-fcpvd # RZ/V2L |
| - const: renesas,fcpv # Generic FCP for VSP fallback |
| |
| reg: |
| maxItems: 1 |
| |
| clocks: true |
| |
| clock-names: true |
| |
| iommus: |
| maxItems: 1 |
| |
| power-domains: |
| maxItems: 1 |
| |
| resets: |
| maxItems: 1 |
| |
| required: |
| - compatible |
| - reg |
| - clocks |
| - power-domains |
| - resets |
| |
| additionalProperties: false |
| |
| allOf: |
| - if: |
| properties: |
| compatible: |
| contains: |
| enum: |
| - renesas,r9a07g044-fcpvd |
| - renesas,r9a07g054-fcpvd |
| then: |
| properties: |
| clocks: |
| items: |
| - description: Main clock |
| - description: Register access clock |
| - description: Video clock |
| clock-names: |
| items: |
| - const: aclk |
| - const: pclk |
| - const: vclk |
| required: |
| - clock-names |
| else: |
| properties: |
| clocks: |
| maxItems: 1 |
| clock-names: false |
| |
| examples: |
| # R8A7795 (R-Car H3) FCP for VSP-D1 |
| - | |
| #include <dt-bindings/clock/renesas-cpg-mssr.h> |
| #include <dt-bindings/power/r8a7795-sysc.h> |
| |
| fcp@fea2f000 { |
| compatible = "renesas,fcpv"; |
| reg = <0xfea2f000 0x200>; |
| clocks = <&cpg CPG_MOD 602>; |
| power-domains = <&sysc R8A7795_PD_ALWAYS_ON>; |
| resets = <&cpg 602>; |
| iommus = <&ipmmu_vi0 9>; |
| }; |
| ... |
