renesas,fcp.yaml

  1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/media/renesas,fcp.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Renesas R-Car Frame Compression Processor (FCP)
  8
  9maintainers:
 10  - Laurent Pinchart <laurent.pinchart@ideasonboard.com>
 11
 12description: |
 13  The FCP is a companion module of video processing modules in the Renesas
 14  R-Car Gen3 and RZ/G2 SoCs. It provides data compression and decompression,
 15  data caching, and conversion of AXI transactions in order to reduce the
 16  memory bandwidth.
 17
 18  There are three types of FCP: FCP for Codec (FCPC), FCP for VSP (FCPV) and
 19  FCP for FDP (FCPF). Their configuration and behaviour depend on the module
 20  they are paired with. These DT bindings currently support the FCPV and FCPF.
 21
 22properties:
 23  compatible:
 24    oneOf:
 25      - enum:
 26          - renesas,fcpv # FCP for VSP
 27          - renesas,fcpf # FCP for FDP
 28      - items:
 29          - enum:
 30              - renesas,r9a07g043u-fcpvd # RZ/G2UL
 31              - renesas,r9a07g044-fcpvd # RZ/G2{L,LC}
 32              - renesas,r9a07g054-fcpvd # RZ/V2L
 33              - renesas,r9a09g056-fcpvd # RZ/V2N
 34              - renesas,r9a09g057-fcpvd # RZ/V2H(P)
 35          - const: renesas,fcpv         # Generic FCP for VSP fallback
 36
 37  reg:
 38    maxItems: 1
 39
 40  clocks:
 41    minItems: 1
 42    items:
 43      - description: Main clock
 44      - description: Register access clock
 45      - description: Video clock
 46
 47  clock-names:
 48    items:
 49      - const: aclk
 50      - const: pclk
 51      - const: vclk
 52
 53  iommus:
 54    maxItems: 1
 55
 56  power-domains:
 57    maxItems: 1
 58
 59  resets:
 60    maxItems: 1
 61
 62required:
 63  - compatible
 64  - reg
 65  - clocks
 66  - power-domains
 67  - resets
 68
 69additionalProperties: false
 70
 71allOf:
 72  - if:
 73      properties:
 74        compatible:
 75          contains:
 76            enum:
 77              - renesas,r9a07g043u-fcpvd
 78              - renesas,r9a07g044-fcpvd
 79              - renesas,r9a07g054-fcpvd
 80              - renesas,r9a09g057-fcpvd
 81    then:
 82      properties:
 83        clocks:
 84          minItems: 3
 85      required:
 86        - clock-names
 87    else:
 88      properties:
 89        clocks:
 90          maxItems: 1
 91        clock-names: false
 92
 93examples:
 94  # R8A7795 (R-Car H3) FCP for VSP-D1
 95  - |
 96    #include <dt-bindings/clock/renesas-cpg-mssr.h>
 97    #include <dt-bindings/power/r8a7795-sysc.h>
 98
 99    fcp@fea2f000 {
100        compatible = "renesas,fcpv";
101        reg = <0xfea2f000 0x200>;
102        clocks = <&cpg CPG_MOD 602>;
103        power-domains = <&sysc R8A7795_PD_ALWAYS_ON>;
104        resets = <&cpg 602>;
105        iommus = <&ipmmu_vi0 9>;
106    };
107...