drm/exynos: Add atomic modesetting support

[Gustavo Padovan]

Hi,

Here goes the full support for atomic modesetting on exynos. I've
split the patches in the various phases of atomic support.

v2: fixes comments by Joonyoung
        - remove unused var in patch 09
        - use ->disable instead of outdated ->dpms in hdmi code
        - remove WARN_ON from crtc enable/disable

v3: fixes comment by Joonyoung
        - move the removal of drm_helper_disable_unused_functions() to
        separated patch

v4: add patches that remove unnecessary calls to disable_plane()

	Gustavo

---
Gustavo Padovan (12):
      drm/exynos: atomic phase 1: use drm_plane_helper_update()
      drm/exynos: atomic phase 1: use drm_plane_helper_disable()
      drm/exynos: atomic phase 1: add .mode_set_nofb() callback
      drm/exynos: atomic phase 2: wire up state reset(), duplicate() and destroy()
      drm/exynos: atomic phase 2: keep track of framebuffer pointer
      drm/exynos: atomic phase 3: atomic updates of planes
      drm/exynos: atomic phase 3: use atomic .set_config helper
      drm/exynos: atomic phase 3: convert page flips
      drm/exynos: remove exported functions from exynos_drm_plane
      drm/exynos: don't disable unused functions at init
      drm/exynos: atomic dpms support
      drm/exynos: remove unnecessary calls to disable_plane()

 drivers/gpu/drm/bridge/ps8622.c             |   6 +-
 drivers/gpu/drm/bridge/ptn3460.c            |   6 +-
 drivers/gpu/drm/exynos/exynos_dp_core.c     |   6 +-
 drivers/gpu/drm/exynos/exynos_drm_crtc.c    | 215 +++++++++----------------------
 drivers/gpu/drm/exynos/exynos_drm_dpi.c     |   6 +-
 drivers/gpu/drm/exynos/exynos_drm_drv.c     |   2 +
 drivers/gpu/drm/exynos/exynos_drm_drv.h     |   4 +-
 drivers/gpu/drm/exynos/exynos_drm_dsi.c     |   6 +-
 drivers/gpu/drm/exynos/exynos_drm_encoder.c |  35 +----
 drivers/gpu/drm/exynos/exynos_drm_fb.c      |  12 +-
 drivers/gpu/drm/exynos/exynos_drm_fbdev.c   |   3 -
 drivers/gpu/drm/exynos/exynos_drm_plane.c   | 115 +++++++++--------
 drivers/gpu/drm/exynos/exynos_drm_plane.h   |  11 --
 drivers/gpu/drm/exynos/exynos_drm_vidi.c    |   6 +-
 drivers/gpu/drm/exynos/exynos_hdmi.c        |  10 +-
 15 files changed, 178 insertions(+), 265 deletions(-)