drm/sun4i: Grab reserved memory region

Allow to provide an optional memory region to allocate from for our DRM
driver.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Maxime Ripard 2017-02-09 17:39:18 +01:00
commit 596afb6f05