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 additionalProperties: 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 required:
81 - compatible
82 - reg
83 - clocks
84 - clock-names
85 - '#clock-cells'
86 - clock-output-names
87 - port
88
89 additionalProperties: false
90
91 examples:
92 - |
93 #include <dt-bindings/interrupt-controller/irq.h>
94
95 isc: isc@f0008000 {
96 compatible = "atmel,sama5d2-isc";
97 reg = <0xf0008000 0x4000>;
98 interrupts = <46 IRQ_TYPE_LEVEL_HIGH 5>;
99 clocks = <&isc_clk>, <&iscck>, <&isc_gclk>;
100 clock-names = "hclock", "iscck", "gck";
101 #clock-cells = <0>;
102 clock-output-names = "isc-mck";
103
104 port {
105 isc_0: endpoint {
106 remote-endpoint = <&ov7740_0>;
107 hsync-active = <1>;
108 vsync-active = <0>;
109 pclk-sample = <1>;
110 bus-width = <8>;
111 };
112 };
113 };
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