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-names 9 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 one 14'port' child node with child 'endpoint' node. Please refer to the bindings 15defined in Documentation/devicetree/bindings/media/video-interfaces.txt. 16 17Endpoint node properties 18------------------------ 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