1Samsung S5C73M3 8Mp camera ISP 2------------------------------ 3 4The S5C73M3 camera ISP supports MIPI CSI-2 and parallel (ITU-R BT.656) video 5data busses. The I2C bus is the main control bus and additionally the SPI bus 6is used, mostly for transferring the firmware to and from the device. Two 7slave device nodes corresponding to these control bus interfaces are required 8and should be placed under respective bus controller nodes. 9 10I2C slave device node 11--------------------- 12 13Required properties: 14 15- compatible : "samsung,s5c73m3"; 16- reg : I2C slave address of the sensor; 17- vdd-int-supply : digital power supply (1.2V); 18- vdda-supply : analog power supply (1.2V); 19- vdd-reg-supply : regulator input power supply (2.8V); 20- vddio-host-supply : host I/O power supply (1.8V to 2.8V); 21- vddio-cis-supply : CIS I/O power supply (1.2V to 1.8V); 22- vdd-af-supply : lens power supply (2.8V); 23- xshutdown-gpios : specifier of GPIO connected to the XSHUTDOWN pin; 24- standby-gpios : specifier of GPIO connected to the STANDBY pin; 25- clocks : should contain list of phandle and clock specifier pairs 26 according to common clock bindings for the clocks described 27 in the clock-names property; 28- clock-names : should contain "cis_extclk" entry for the CIS_EXTCLK clock; 29 30Optional properties: 31 32- clock-frequency : the frequency at which the "cis_extclk" clock should be 33 configured to operate, in Hz; if this property is not 34 specified default 24 MHz value will be used. 35 36The common video interfaces bindings (see video-interfaces.txt) should be used 37to specify link from the S5C73M3 to an external image data receiver. The S5C73M3 38device node should contain one 'port' child node with an 'endpoint' subnode for 39this purpose. The data link from a raw image sensor to the S5C73M3 can be 40similarly specified, but it is optional since the S5C73M3 ISP and a raw image 41sensor are usually inseparable and form a hybrid module. 42 43Following properties are valid for the endpoint node(s): 44 45endpoint subnode 46---------------- 47 48- data-lanes : (optional) specifies MIPI CSI-2 data lanes as covered in 49 video-interfaces.txt. This sensor doesn't support data lane remapping 50 and physical lane indexes in subsequent elements of the array should 51 be only consecutive ascending values. 52 53SPI device node 54--------------- 55 56Required properties: 57 58- compatible : "samsung,s5c73m3"; 59 60For more details see description of the SPI busses bindings 61(../spi/spi-bus.txt) and bindings of a specific bus controller. 62 63Example: 64 65i2c@138a000000 { 66 ... 67 s5c73m3@3c { 68 compatible = "samsung,s5c73m3"; 69 reg = <0x3c>; 70 vdd-int-supply = <&buck9_reg>; 71 vdda-supply = <&ldo17_reg>; 72 vdd-reg-supply = <&cam_io_reg>; 73 vddio-host-supply = <&ldo18_reg>; 74 vddio-cis-supply = <&ldo9_reg>; 75 vdd-af-supply = <&cam_af_reg>; 76 clock-frequency = <24000000>; 77 clocks = <&clk 0>; 78 clock-names = "cis_extclk"; 79 reset-gpios = <&gpf1 3 1>; 80 standby-gpios = <&gpm0 1 1>; 81 port { 82 s5c73m3_ep: endpoint { 83 remote-endpoint = <&csis0_ep>; 84 data-lanes = <1 2 3 4>; 85 }; 86 }; 87 }; 88}; 89 90spi@1392000 { 91 ... 92 s5c73m3_spi: s5c73m3@0 { 93 compatible = "samsung,s5c73m3"; 94 reg = <0>; 95 ... 96 }; 97}; 98