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image sensor i2c address
emeel
Join Date: 19 Jul 16
Posts: 1
Posted: Mon, 2017-02-13 00:50
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I want to replace the image sensor on an APQ820 Dragonbaord by another similar image sensor but with a different I2C address. (CSI-2/MIPI)

Where can I enter the I2C address of the new image sensor in the devicetree (dtsi) files? I find the below entry for cci/camera but reg<0> simply points at the camera "cell-index", not the actual i2c address. 

qcom,camera@0 {
cell-index = <0>;
compatible = "qcom,camera";
reg = <0x0>;
 
However for example for the eeprom the dts entry contains the i2c address (slave-addr) of the eeprom:
 
eeprom1: qcom,eeprom@1 {
cell-index = <1>;
reg = <0x1>;
qcom,eeprom-name = "onsemi_cat24c16";
compatible = "qcom,eeprom";
qcom,slave-addr = <0xa0>;

 

Why the eeprom has an i2c address but the camera doesn't need it? Where can I enter the i2c address of the image sensor if not under above qcom,camera@0{ }  node?

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