atmel,isc.yaml

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    1 # SPDX-License-Identifier: GPL-2.0-only
    2 # Copyright (C) 2016-2021 Microchip Technology, Inc.
    3 %YAML 1.2
    4 ---
    5 $id: http://devicetree.org/schemas/media/atmel,isc.yaml#
    6 $schema: http://devicetree.org/meta-schemas/core.yaml#
    7 
    8 title: Atmel Image Sensor Controller (ISC)
    9 
   10 maintainers:
   11   - Eugen Hristev <eugen.hristev@microchip.com>
   12 
   13 description: |
   14   The Image Sensor Controller (ISC) device provides the video input capabilities for the
   15   Atmel/Microchip AT91 SAMA family of devices.
   16 
   17   The ISC has a single parallel input that supports RAW Bayer, RGB or YUV video,
   18   with both external synchronization and BT.656 synchronization for the latter.
   19 
   20 properties:
   21   compatible:
   22     const: atmel,sama5d2-isc
   23 
   24   reg:
   25     maxItems: 1
   26 
   27   interrupts:
   28     maxItems: 1
   29 
   30   clocks:
   31     minItems: 3
   32     maxItems: 3
   33 
   34   clock-names:
   35     items:
   36       - const: hclock
   37       - const: iscck
   38       - const: gck
   39 
   40   '#clock-cells':
   41     const: 0
   42 
   43   clock-output-names:
   44     const: isc-mck
   45 
   46   port:
   47     $ref: /schemas/graph.yaml#/$defs/port-base
   48     unevaluatedProperties: false
   49     description:
   50       Input port node, single endpoint describing the input pad.
   51 
   52     properties:
   53       endpoint:
   54         $ref: video-interfaces.yaml#
   55 
   56         properties:
   57           remote-endpoint: true
   58 
   59           bus-width:
   60             enum: [8, 9, 10, 11, 12]
   61             default: 12
   62 
   63           hsync-active:
   64             enum: [0, 1]
   65             default: 1
   66 
   67           vsync-active:
   68             enum: [0, 1]
   69             default: 1
   70 
   71           pclk-sample:
   72             enum: [0, 1]
   73             default: 1
   74 
   75         required:
   76           - remote-endpoint
   77 
   78         additionalProperties: false
   79 
   80     additionalProperties: false
   81 
   82 required:
   83   - compatible
   84   - reg
   85   - clocks
   86   - clock-names
   87   - '#clock-cells'
   88   - clock-output-names
   89   - port
   90 
   91 additionalProperties: false
   92 
   93 examples:
   94   - |
   95     #include <dt-bindings/interrupt-controller/irq.h>
   96 
   97     isc: isc@f0008000 {
   98         compatible = "atmel,sama5d2-isc";
   99         reg = <0xf0008000 0x4000>;
  100         interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>;
  101         clocks = <&isc_clk>, <&iscck>, <&isc_gclk>;
  102         clock-names = "hclock", "iscck", "gck";
  103         #clock-cells = <0>;
  104         clock-output-names = "isc-mck";
  105 
  106         port {
  107                 isc_0: endpoint {
  108                        remote-endpoint = <&ov7740_0>;
  109                        hsync-active = <1>;
  110                        vsync-active = <0>;
  111                        pclk-sample = <1>;
  112                        bus-width = <8>;
  113                 };
  114         };
  115     };

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