Merge tag 'imx-drm-fixes-2016-11-10' of git://git.pengutronix.de/git/pza/linux into drm-fixes

imx-drm: fix possible hangup when disabling crtcs

- only ever disable the display controller (DC) module after all plane
  IDMAC channels are stopped. This fixes a regression introduced by the
  atomic modeset conversion.

* tag 'imx-drm-fixes-2016-11-10' of git://git.pengutronix.de/git/pza/linux:
  drm/imx: disable planes before DC