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
  7title: STMicroelectronics STM32 Digital Camera Memory Interface (DCMI)
  8
  9maintainers:
 10  - Hugues Fruchet <hugues.fruchet@foss.st.com>
 11
 12properties:
 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  access-controllers:
 40    minItems: 1
 41    maxItems: 2
 42
 43  port:
 44    $ref: /schemas/graph.yaml#/$defs/port-base
 45    unevaluatedProperties: false
 46    description:
 47      DCMI supports a single port node with parallel bus.
 48
 49    properties:
 50      endpoint:
 51        $ref: video-interfaces.yaml#
 52        unevaluatedProperties: false
 53
 54        properties:
 55          bus-type:
 56            enum: [5, 6]
 57            default: 5
 58
 59          bus-width:
 60            enum: [8, 10, 12, 14]
 61            default: 8
 62
 63        allOf:
 64          - if:
 65              properties:
 66                bus-type:
 67                  const: 6
 68
 69            then:
 70              properties:
 71                hsync-active: false
 72                vsync-active: false
 73                bus-width:
 74                  enum: [8]
 75
 76        required:
 77          - bus-type
 78          - pclk-sample
 79
 80required:
 81  - compatible
 82  - reg
 83  - interrupts
 84  - clocks
 85  - clock-names
 86  - resets
 87  - dmas
 88  - dma-names
 89  - port
 90
 91additionalProperties: false
 92
 93examples:
 94  - |
 95    #include <dt-bindings/interrupt-controller/arm-gic.h>
 96    #include <dt-bindings/clock/stm32mp1-clks.h>
 97    #include <dt-bindings/media/video-interfaces.h>
 98    #include <dt-bindings/reset/stm32mp1-resets.h>
 99
100    dcmi: dcmi@4c006000 {
101        compatible = "st,stm32-dcmi";
102        reg = <0x4c006000 0x400>;
103        interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
104        resets = <&rcc CAMITF_R>;
105        clocks = <&rcc DCMI>;
106        clock-names = "mclk";
107        dmas = <&dmamux1 75 0x400 0x0d>;
108        dma-names = "tx";
109
110        port {
111             dcmi_0: endpoint {
112                   remote-endpoint = <&ov5640_0>;
113                   bus-type = <MEDIA_BUS_TYPE_PARALLEL>;
114                   bus-width = <8>;
115                   hsync-active = <0>;
116                   vsync-active = <0>;
117                   pclk-sample = <1>;
118             };
119        };
120    };
121
122...