This change implements msm drm specific fb_mmap function for fb device
to properly map the fb address to userspace.
Signed-off-by: NHai Li <hali@codeaurora.org>
Signed-off-by: NStephane Viau <sviau@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com> (+ minor comment tweak)