0001 Samsung S5C73M3 8Mp camera ISP
0002 ------------------------------
0003
0004 The S5C73M3 camera ISP supports MIPI CSI-2 and parallel (ITU-R BT.656) video
0005 data busses. The I2C bus is the main control bus and additionally the SPI bus
0006 is used, mostly for transferring the firmware to and from the device. Two
0007 slave device nodes corresponding to these control bus interfaces are required
0008 and should be placed under respective bus controller nodes.
0009
0010 I2C slave device node
0011 ---------------------
0012
0013 Required properties:
0014
0015 - compatible : "samsung,s5c73m3";
0016 - reg : I2C slave address of the sensor;
0017 - vdd-int-supply : digital power supply (1.2V);
0018 - vdda-supply : analog power supply (1.2V);
0019 - vdd-reg-supply : regulator input power supply (2.8V);
0020 - vddio-host-supply : host I/O power supply (1.8V to 2.8V);
0021 - vddio-cis-supply : CIS I/O power supply (1.2V to 1.8V);
0022 - vdd-af-supply : lens power supply (2.8V);
0023 - xshutdown-gpios : specifier of GPIO connected to the XSHUTDOWN pin;
0024 - standby-gpios : specifier of GPIO connected to the STANDBY pin;
0025 - clocks : should contain list of phandle and clock specifier pairs
0026 according to common clock bindings for the clocks described
0027 in the clock-names property;
0028 - clock-names : should contain "cis_extclk" entry for the CIS_EXTCLK clock;
0029
0030 Optional properties:
0031
0032 - clock-frequency : the frequency at which the "cis_extclk" clock should be
0033 configured to operate, in Hz; if this property is not
0034 specified default 24 MHz value will be used.
0035
0036 The common video interfaces bindings (see video-interfaces.txt) should be used
0037 to specify link from the S5C73M3 to an external image data receiver. The S5C73M3
0038 device node should contain one 'port' child node with an 'endpoint' subnode for
0039 this purpose. The data link from a raw image sensor to the S5C73M3 can be
0040 similarly specified, but it is optional since the S5C73M3 ISP and a raw image
0041 sensor are usually inseparable and form a hybrid module.
0042
0043 Following properties are valid for the endpoint node(s):
0044
0045 endpoint subnode
0046 ----------------
0047
0048 - data-lanes : (optional) specifies MIPI CSI-2 data lanes as covered in
0049 video-interfaces.txt. This sensor doesn't support data lane remapping
0050 and physical lane indexes in subsequent elements of the array should
0051 be only consecutive ascending values.
0052
0053 SPI device node
0054 ---------------
0055
0056 Required properties:
0057
0058 - compatible : "samsung,s5c73m3";
0059
0060 For more details see description of the SPI busses bindings
0061 (../spi/spi-bus.txt) and bindings of a specific bus controller.
0062
0063 Example:
0064
0065 i2c@138a000000 {
0066 ...
0067 s5c73m3@3c {
0068 compatible = "samsung,s5c73m3";
0069 reg = <0x3c>;
0070 vdd-int-supply = <&buck9_reg>;
0071 vdda-supply = <&ldo17_reg>;
0072 vdd-reg-supply = <&cam_io_reg>;
0073 vddio-host-supply = <&ldo18_reg>;
0074 vddio-cis-supply = <&ldo9_reg>;
0075 vdd-af-supply = <&cam_af_reg>;
0076 clock-frequency = <24000000>;
0077 clocks = <&clk 0>;
0078 clock-names = "cis_extclk";
0079 reset-gpios = <&gpf1 3 1>;
0080 standby-gpios = <&gpm0 1 1>;
0081 port {
0082 s5c73m3_ep: endpoint {
0083 remote-endpoint = <&csis0_ep>;
0084 data-lanes = <1 2 3 4>;
0085 };
0086 };
0087 };
0088 };
0089
0090 spi@1392000 {
0091 ...
0092 s5c73m3_spi: s5c73m3@0 {
0093 compatible = "samsung,s5c73m3";
0094 reg = <0>;
0095 ...
0096 };
0097 };
