tree b3db56aea5c1919d869e1e274ea410f8e77782eb
parent 3e985f08520f9cc75fab5894fef45b164406b639
author Alan Kwong <akwong@codeaurora.org> 1488758830 -0800
committer Alan Kwong <akwong@codeaurora.org> 1490967023 -0700

drm/msm/sde: allow connector to accept null framebuffer id

Zero is valid a framebuffer identifier to indicated no framebuffer
attached. Change connector to accept null framebuffer as buffer
detachment.

CRs-Fixed: 2009714
Change-Id: I4ffc7e6947b31dce81631746bb2ca2daf02f978c
Signed-off-by: Alan Kwong <akwong@codeaurora.org>