V4l2-comctl0 custom board issue RZV2M

Hello,

I am trying to interface AR1335 camera with a custom board. I am facing an issue here. both custom board and rzv2m evk registers and recognise the device alike.The custom board couldnt  do video capture. I checked and compared the boot logs of both the boards and found out that  v4l2-comctl called open()  this was not present in the custom board. Can anybody please explain what is going wrong here?