tx2 system start up camera i2c cannot communicate

nvidia@tegra-ubuntu:~$ dmesg | grep i2c
[ 0.237298] iommu: Adding device 3160000.i2c to group 3
[ 0.237719] iommu: Adding device c240000.i2c to group 4
[ 0.238054] iommu: Adding device 3180000.i2c to group 5
[ 0.238409] iommu: Adding device 3190000.i2c to group 6
[ 0.238920] iommu: Adding device 31b0000.i2c to group 7
[ 0.239225] iommu: Adding device 31c0000.i2c to group 8
[ 0.239552] iommu: Adding device c250000.i2c to group 9
[ 0.239915] iommu: Adding device 31e0000.i2c to group 10
[ 0.307825] tegra-i2c 3160000.i2c: no acknowledge from address 0x74
[ 0.308504] tegra-i2c 3160000.i2c: no acknowledge from address 0x77
[ 0.463637] tegra-i2c 3190000.i2c: no acknowledge from address 0x50
[ 2.740095] i2c /dev entries driver
[ 2.753038] tegra-i2c 3160000.i2c: no acknowledge from address 0x42
[ 2.754280] tegra-i2c 3160000.i2c: no acknowledge from address 0x43

I designed my own carried board and removed the chip such as gpio extension.I found that official board camera i2c will detect the i2c device when the system start up. I used the oscilloscope to check that the official board started to launch the i2c2 probe, but our board didn’t.This phenomenon is very organ. Is there anything special about the camera i2c? The i2c of the camera is the third i2c device (i2c2).The dmesg infomation aslo have no 3180000.i2c Message

@webhack
You need to remove those device not on your design carried board in the device tree.