AnsweredAssumed Answered

two OV5640 mipi csi cameras

Question asked by bineyamtafesse on Sep 13, 2018

Working to interface two OV5640 MIPI CSI cameras(MINISASTOCSI) to the imx8mqevk board. Per the schematic note, I've routed the I2C lines for the second camera to a separate I2C channel (I2C2).  I made the adjustment to the device tree so both cameras are enabled. 

 

If I have only one camera physically connected, both lines work. This confirms that device tree files work correctly with their respective cameras. However, when I have both cameras connected, the system freezes up on attempt to initialize second camera.  Can the OV5640 drivers support two cameras?

 

Below is the message i get before it freezes:

 

[ 2.125015] i2c /dev entries driver
[ 2.132435] 0-003c supply DOVDD not found, using dummy regulator
[ 2.138514] 0-003c supply DVDD not found, using dummy regulator
[ 2.144480] 0-003c supply AVDD not found, using dummy regulator
[ 2.245928] random: fast init done
[ 3.266017] camera ov5640_mipi is found
[ 3.270015] 1-003c supply DOVDD not found, using dummy regulator
[ 3.276132] 1-003c supply DVDD not found, using dummy regulator
[ 3.282139] 1-003c supply AVDD not found, using dummy regulator
[ 4.418004] camera ov5640_mipi is found
[ 4.422874] mxc-mipi-csi2_yav 30a70000.mipi_csi1: mipi_csi2_probe
[ 4.429062] CSI: Registered sensor subdevice: mxc-mipi-csi2.0
[ 4.434867] mxc-mipi-csi2_yav 30a70000.mipi_csi: Remote device at /mipi_csi1@30a70000/port/endpoint1 XXX found

Attachments

Outcomes