default or selected kernelversion does not have config value CONFIG_VIDEO_IMX_CSI.
Result is shown for kernelversion 6.9.9

i.MX5/6 Camera Sensor Interface driver

modulename: imx6-media.ko

and/or

imx6-media-csi.ko

and/or

imx6-mipi-csi2.ko

configname: CONFIG_VIDEO_IMX_CSI

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>Media staging drivers
└─>Multimedia support
└─>i.MX5/6/7/8 Media Sub devices
└─>i.MX5/6 Camera Sensor Interface driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
A video4linux camera sensor interface driver for i.MX5/6.

source code:
drivers/staging/media/imx/