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1Atmel Image Sensor Interface (ISI)2----------------------------------3 4Required properties for ISI:5- compatible: must be "atmel,at91sam9g45-isi" or "microchip,sam9x60-isi".6- reg: physical base address and length of the registers set for the device.7- interrupts: should contain IRQ line for the ISI.8- clocks: list of clock specifiers, corresponding to entries in the clock-names9 property; please refer to clock-bindings.txt.10- clock-names: required elements: "isi_clk".11- pinctrl-names, pinctrl-0: please refer to pinctrl-bindings.txt.12 13ISI supports a single port node with parallel bus. It shall contain one14'port' child node with child 'endpoint' node. Please refer to the bindings15defined in Documentation/devicetree/bindings/media/video-interfaces.txt.16 17Endpoint node properties18------------------------19 20- bus-width: <8> or <10> (mandatory)21- hsync-active (default: active high)22- vsync-active (default: active high)23- pclk-sample (default: sample on falling edge)24- remote-endpoint: A phandle to the bus receiver's endpoint node (mandatory).25 26Example:27 28isi: isi@f0034000 {29 compatible = "atmel,at91sam9g45-isi";30 reg = <0xf0034000 0x4000>;31 interrupts = <37 IRQ_TYPE_LEVEL_HIGH 5>;32 pinctrl-names = "default";33 pinctrl-0 = <&pinctrl_isi_data_0_7>;34 clocks = <&isi_clk>;35 clock-names = "isi_clk";36 port {37 isi_0: endpoint {38 remote-endpoint = <&ov2640_0>;39 bus-width = <8>;40 vsync-active = <1>;41 hsync-active = <1>;42 };43 };44};45 46i2c1: i2c@f0018000 {47 ov2640: camera@30 {48 compatible = "ovti,ov2640";49 reg = <0x30>;50 pinctrl-names = "default";51 pinctrl-0 = <&pinctrl_pck0_as_isi_mck &pinctrl_sensor_power &pinctrl_sensor_reset>;52 resetb-gpios = <&pioE 11 GPIO_ACTIVE_LOW>;53 pwdn-gpios = <&pioE 13 GPIO_ACTIVE_HIGH>;54 clocks = <&pck0>;55 clock-names = "xvclk";56 assigned-clocks = <&pck0>;57 assigned-clock-rates = <25000000>;58 59 port {60 ov2640_0: endpoint {61 remote-endpoint = <&isi_0>;62 bus-width = <8>;63 };64 };65 };66};67