98 lines
3.1 KiB
Plaintext
98 lines
3.1 KiB
Plaintext
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Samsung S5C73M3 8Mp camera ISP
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------------------------------
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The S5C73M3 camera ISP supports MIPI CSI-2 and parallel (ITU-R BT.656) video
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data busses. The I2C bus is the main control bus and additionally the SPI bus
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is used, mostly for transferring the firmware to and from the device. Two
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slave device nodes corresponding to these control bus interfaces are required
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and should be placed under respective bus controller nodes.
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I2C slave device node
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---------------------
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Required properties:
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- compatible : "samsung,s5c73m3";
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- reg : I2C slave address of the sensor;
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- vdd-int-supply : digital power supply (1.2V);
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- vdda-supply : analog power supply (1.2V);
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- vdd-reg-supply : regulator input power supply (2.8V);
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- vddio-host-supply : host I/O power supply (1.8V to 2.8V);
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- vddio-cis-supply : CIS I/O power supply (1.2V to 1.8V);
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- vdd-af-supply : lens power supply (2.8V);
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- xshutdown-gpios : specifier of GPIO connected to the XSHUTDOWN pin;
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- standby-gpios : specifier of GPIO connected to the STANDBY pin;
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- clocks : should contain list of phandle and clock specifier pairs
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according to common clock bindings for the clocks described
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in the clock-names property;
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- clock-names : should contain "cis_extclk" entry for the CIS_EXTCLK clock;
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Optional properties:
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- clock-frequency : the frequency at which the "cis_extclk" clock should be
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configured to operate, in Hz; if this property is not
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specified default 24 MHz value will be used.
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The common video interfaces bindings (see video-interfaces.txt) should be used
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to specify link from the S5C73M3 to an external image data receiver. The S5C73M3
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device node should contain one 'port' child node with an 'endpoint' subnode for
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this purpose. The data link from a raw image sensor to the S5C73M3 can be
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similarly specified, but it is optional since the S5C73M3 ISP and a raw image
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sensor are usually inseparable and form a hybrid module.
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Following properties are valid for the endpoint node(s):
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endpoint subnode
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----------------
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- data-lanes : (optional) specifies MIPI CSI-2 data lanes as covered in
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video-interfaces.txt. This sensor doesn't support data lane remapping
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and physical lane indexes in subsequent elements of the array should
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be only consecutive ascending values.
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SPI device node
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---------------
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Required properties:
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- compatible : "samsung,s5c73m3";
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For more details see description of the SPI busses bindings
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(../spi/spi-bus.txt) and bindings of a specific bus controller.
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Example:
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i2c@138a000000 {
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...
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s5c73m3@3c {
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compatible = "samsung,s5c73m3";
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reg = <0x3c>;
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vdd-int-supply = <&buck9_reg>;
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vdda-supply = <&ldo17_reg>;
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vdd-reg-supply = <&cam_io_reg>;
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vddio-host-supply = <&ldo18_reg>;
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vddio-cis-supply = <&ldo9_reg>;
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vdd-af-supply = <&cam_af_reg>;
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clock-frequency = <24000000>;
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clocks = <&clk 0>;
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clock-names = "cis_extclk";
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xshutdown-gpios = <&gpf1 3 1>;
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standby-gpios = <&gpm0 1 1>;
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port {
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s5c73m3_ep: endpoint {
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remote-endpoint = <&csis0_ep>;
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data-lanes = <1 2 3 4>;
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};
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};
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};
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};
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spi@1392000 {
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...
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s5c73m3_spi: s5c73m3@0 {
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compatible = "samsung,s5c73m3";
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reg = <0>;
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...
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};
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};
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