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Visitor II
April 23, 2026
Question

STM32MP135F-DK Camera setup does not work

  • April 23, 2026
  • 1 reply
  • 108 views

Hello STM Team,

I have been trying to get the GC2145 to work on the DK but no matter what i do i only get /dev/video0 but never /dev/media0

I use Buildroot with the Linux kernel on ST's Github. I have followed this guide here: https://wiki.st.com/stm32mpu/wiki/STM32MP13_V4L2_camera_overview and i have all the Kernel modules needed activated.

I know the camera is plugged in properly because the demo from ST works but there's no code or config that goes along that demo for me to find the issue, at least i could not find it.

I will attach a little bit of debug info at the bottom if its any helpful:

# dmesg | grep -i gc2145
[ 0.058299] /soc/bus@5c007000/i2c@4c006000/stmipi@14: Fixed dependency cycle(s) with /soc/bus@5c007000/i2c@4c006000/gc2145@3c
[ 0.058443] /soc/bus@5c007000/i2c@4c006000/gc2145@3c: Fixed dependency cycle(s) with /soc/bus@5c007000/i2c@4c006000/stmipi@14
[ 0.069826] /soc/bus@5c007000/i2c@4c006000/stmipi@14: Fixed dependency cycle(s) with /soc/bus@5c007000/i2c@4c006000/gc2145@3c
[ 0.069991] /soc/bus@5c007000/i2c@4c006000/gc2145@3c: Fixed dependency cycle(s) with /soc/bus@5c007000/i2c@4c006000/stmipi@14
[ 0.073727] /soc/bus@5c007000/i2c@4c006000/stmipi@14: Fixed dependency cycle(s) with /soc/bus@5c007000/i2c@4c006000/gc2145@3c
[ 0.073902] /soc/bus@5c007000/i2c@4c006000/gc2145@3c: Fixed dependency cycle(s) with /soc/bus@5c007000/i2c@4c006000/stmipi@14
[ 0.480790] /soc/bus@5c007000/i2c@4c006000/stmipi@14: Fixed dependency cycle(s) with /soc/bus@5c007000/i2c@4c006000/gc2145@3c
[ 0.512666] /soc/bus@5c007000/i2c@4c006000/stmipi@14: Fixed dependency cycle(s) with /soc/bus@5c007000/i2c@4c006000/gc2145@3c
[ 0.513049] /soc/bus@5c007000/i2c@4c006000/gc2145@3c: Fixed dependency cycle(s) with /soc/bus@5c007000/i2c@4c006000/stmipi@14
# v4l2-ctl --list-devices
stm32_dcmipp (platform:5a000000.dcmipp):
 /dev/video0

1 reply

ST Employee
May 12, 2026

Hi @JohnnySonny ,

 

Could you please share the trace and the command lines that you use?

 

Regards,

Grégory 

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