Documentation/devicetree/bindings/media/st,stm32-dcmi.yaml

   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 ...