st,stm32-dcmi.yaml

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    1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
    2 %YAML 1.2
    3 ---
    4 $id: http://devicetree.org/schemas/media/st,stm32-dcmi.yaml#
    5 $schema: http://devicetree.org/meta-schemas/core.yaml#
    6 
    7 title: STMicroelectronics STM32 Digital Camera Memory Interface (DCMI) binding
    8 
    9 maintainers:
   10   - Hugues Fruchet <hugues.fruchet@foss.st.com>
   11 
   12 properties:
   13   compatible:
   14     const: st,stm32-dcmi
   15 
   16   reg:
   17     maxItems: 1
   18 
   19   interrupts:
   20     maxItems: 1
   21 
   22   clocks:
   23     maxItems: 1
   24 
   25   clock-names:
   26     items:
   27       - const: mclk
   28 
   29   dmas:
   30     maxItems: 1
   31 
   32   dma-names:
   33     items:
   34       - const: tx
   35 
   36   resets:
   37     maxItems: 1
   38 
   39   port:
   40     $ref: /schemas/graph.yaml#/$defs/port-base
   41     unevaluatedProperties: false
   42     description:
   43       DCMI supports a single port node with parallel bus.
   44 
   45     properties:
   46       endpoint:
   47         $ref: video-interfaces.yaml#
   48         unevaluatedProperties: false
   49 
   50         properties:
   51           bus-type:
   52             enum: [5, 6]
   53             default: 5
   54 
   55           bus-width:
   56             enum: [8, 10, 12, 14]
   57             default: 8
   58 
   59         allOf:
   60           - if:
   61               properties:
   62                 bus-type:
   63                   const: 6
   64 
   65             then:
   66               properties:
   67                 hsync-active: false
   68                 vsync-active: false
   69                 bus-width:
   70                   enum: [8]
   71 
   72         required:
   73           - bus-type
   74           - pclk-sample
   75 
   76 required:
   77   - compatible
   78   - reg
   79   - interrupts
   80   - clocks
   81   - clock-names
   82   - resets
   83   - dmas
   84   - dma-names
   85   - port
   86 
   87 additionalProperties: false
   88 
   89 examples:
   90   - |
   91     #include <dt-bindings/interrupt-controller/arm-gic.h>
   92     #include <dt-bindings/clock/stm32mp1-clks.h>
   93     #include <dt-bindings/reset/stm32mp1-resets.h>
   94     dcmi: dcmi@4c006000 {
   95         compatible = "st,stm32-dcmi";
   96         reg = <0x4c006000 0x400>;
   97         interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
   98         resets = <&rcc CAMITF_R>;
   99         clocks = <&rcc DCMI>;
  100         clock-names = "mclk";
  101         dmas = <&dmamux1 75 0x400 0x0d>;
  102         dma-names = "tx";
  103 
  104         port {
  105              dcmi_0: endpoint {
  106                    remote-endpoint = <&ov5640_0>;
  107                    bus-type = <5>;
  108                    bus-width = <8>;
  109                    hsync-active = <0>;
  110                    vsync-active = <0>;
  111                    pclk-sample = <1>;
  112              };
  113         };
  114     };
  115 
  116 ...

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sys/contrib/device-tree/Bindings/media/st,stm32-dcmi.yaml