drm/tegra: dc: Implement atomic DPMS

Move all code into the new canonical ->disable() and ->enable() helper
callbacks so that they play extra nice with atomic DPMS.

Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding 2015-08-03 13:16:26 +02:00
commit 003fc84877