drm: rockchip: Add basic drm driver

[Dan Carpenter]

On Wed, Dec 17, 2014 at 08:56:25AM +0800, Mark yao wrote:
> Hello Dan,
> 
> Thanks for your review, I will fix it soon.
> Do you use a script to find out these issues? I was interested in
> this script.
> Can you teach me how to find this script and use it?

The first one is a smatch warning.  http://smatch.sf.net.  The other one
is from a private Smatch check that I haven't pushed yet.

regards,
dan carpenter