Joule caspa/gumstix camera support

[Fnoop]

The 'official' caspa/gumstix hd/4k cameras aren't quite working in ubuntu dekstop joule spin. It's very close, but there seems to be some v4l subdevices missing which then fail the camerahal. RefOS kernel produces 4 subdevices which aren't available in the Ubuntu joule kernel (4.4.0-1003-joule #8-Ubuntu):
/dev/v4l-subdev14
/dev/v4l-subdev10
/dev/v4l-subdev11
/dev/v4l-subdev12
/dev/v4l-subdev13

Bit more information in the conversation here:
https://communities.intel.com/message/484549#484549

The kernel patches are here:
https://github.com/01org/meta-intel-camera/blob/master/recipes-kernel/linux-yocto/linux-yocto_4.4.bbappend

I assume the latest ubuntu joule kernel must have added some support for these cameras as all these dozens of v4l devices/subdevices popped up, and the kernel can see the camera:
[dev] [mav@maverick-joule /var/tmp]$ v4l2-ctl --all -d /dev/video41
Driver Info (not using libv4l2):
Driver name : intel-ipu4-isys
Card type : ipu4/Broxton B
Bus info : pci:0000:00:03.0
Driver version: 4.4.67
Capabilities : 0x84203001
Video Capture
Video Capture Multiplanar
Video Output Multiplanar
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format

Sorry, I cannot work out how to find out which patches have been applied to the ubuntu joule kernel.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.