Merge tag 'imx-drm-next-2018-08-03' of git://git.pengutronix.de/git/pza/linux into drm-next

drm/imx: use suspend/resume helpers, add ipu-v3 V4L2 XRGB32/XBGR32 support

- Convert imx_drm_suspend/resume to use the
  drm_mode_config_helper_suspend/ resume functions.
- Add support for V4L2_PIX_FMT_XRGB32/XBGR32, corresponding to
  DRM_FORMAT_XRGB8888/BGRX8888, respectively.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1533552701.4204.15.camel@pengutronix.de