0001 # SPDX-License-Identifier: GPL-2.0-only
0002 # Copyright (C) 2016-2021 Microchip Technology, Inc.
0003 %YAML 1.2
0004 ---
0005 $id: http://devicetree.org/schemas/media/atmel,isc.yaml#
0006 $schema: http://devicetree.org/meta-schemas/core.yaml#
0007
0008 title: Atmel Image Sensor Controller (ISC)
0009
0010 maintainers:
0011 - Eugen Hristev <eugen.hristev@microchip.com>
0012
0013 description: |
0014 The Image Sensor Controller (ISC) device provides the video input capabilities for the
0015 Atmel/Microchip AT91 SAMA family of devices.
0016
0017 The ISC has a single parallel input that supports RAW Bayer, RGB or YUV video,
0018 with both external synchronization and BT.656 synchronization for the latter.
0019
0020 properties:
0021 compatible:
0022 const: atmel,sama5d2-isc
0023
0024 reg:
0025 maxItems: 1
0026
0027 interrupts:
0028 maxItems: 1
0029
0030 clocks:
0031 minItems: 3
0032 maxItems: 3
0033
0034 clock-names:
0035 items:
0036 - const: hclock
0037 - const: iscck
0038 - const: gck
0039
0040 '#clock-cells':
0041 const: 0
0042
0043 clock-output-names:
0044 const: isc-mck
0045
0046 port:
0047 $ref: /schemas/graph.yaml#/$defs/port-base
0048 unevaluatedProperties: false
0049 description:
0050 Input port node, single endpoint describing the input pad.
0051
0052 properties:
0053 endpoint:
0054 $ref: video-interfaces.yaml#
0055
0056 properties:
0057 remote-endpoint: true
0058
0059 bus-width:
0060 enum: [8, 9, 10, 11, 12]
0061 default: 12
0062
0063 hsync-active:
0064 enum: [0, 1]
0065 default: 1
0066
0067 vsync-active:
0068 enum: [0, 1]
0069 default: 1
0070
0071 pclk-sample:
0072 enum: [0, 1]
0073 default: 1
0074
0075 required:
0076 - remote-endpoint
0077
0078 additionalProperties: false
0079
0080 additionalProperties: false
0081
0082 required:
0083 - compatible
0084 - reg
0085 - clocks
0086 - clock-names
0087 - '#clock-cells'
0088 - clock-output-names
0089 - port
0090
0091 additionalProperties: false
0092
0093 examples:
0094 - |
0095 #include <dt-bindings/interrupt-controller/irq.h>
0096
0097 isc: isc@f0008000 {
0098 compatible = "atmel,sama5d2-isc";
0099 reg = <0xf0008000 0x4000>;
0100 interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>;
0101 clocks = <&isc_clk>, <&iscck>, <&isc_gclk>;
0102 clock-names = "hclock", "iscck", "gck";
0103 #clock-cells = <0>;
0104 clock-output-names = "isc-mck";
0105
0106 port {
0107 isc_0: endpoint {
0108 remote-endpoint = <&ov7740_0>;
0109 hsync-active = <1>;
0110 vsync-active = <0>;
0111 pclk-sample = <1>;
0112 bus-width = <8>;
0113 };
0114 };
0115 };
