media: i2c: ov5640: add Rockchip-specific support

[bmx666]

Rockchip extends the base driver with vendor-specific requirements:

• Add private ioctl call RKMODULE_GET_MODULE_INFO
• Implement specific V4L2 callbacks: g_input_status, get_mbus_config
• Read vendor-specific camera module information from device tree
• Hardcoded number of MIPI-CSI2 lanes to 2
• Use old version of probe instead of probe_new

[bmx666]

I did a quick check by capturing few test patterns, but I will wait the final confirmation from customers by EOD tomorrow.

output_YUYV.mp4

[bmx666]

And it works as build-in kernel config CONFIG_VIDEO_OV5640=y, I didn't get any success to run camera as kernel module ov5640.ko

[bmx666]

something mixed in colorspace UYVY is should be converted as uyvy422, but I get correct color with yuyv422.

v4l2-ctl -d /dev/video0 --set-fmt-video=width=640,height=480,pixelformat=UYVY --stream-mmap --stream-count=60 --stream-to=capture_uyvy.raw

ffmpeg -f rawvideo -pix_fmt yuyv422 -s:v 640x480 -i capture_uyvy.raw -c:v libx264 -preset medium -crf 23 output.mp4

[bmx666]

I did a quick check by capturing few test patterns, but I will wait the final confirmation from customers by EOD tomorrow.

Got confirmation, everything works fine.