Kernel version for new drivers

[Dushara Jayasinghe]

Hi all,

Not sure if this has been covered elsewhere. I'm working on a sama5d2 
based device where the kernel supported by the hardware vendor is 4.4. 
Any drivers we develop and test are based on this version of the kernel. 
Do the kernel maintainers accept drivers for older (but maintained) 
versions of the kernel? Is there some general policy regarding this or 
is it a question that I need to ask the maintainer of the subsystem that 
the driver belongs to?

Thanks.

DJ