[PATCH v4 0/7] drm/imx: Add active plane reconfiguration support

[Liu Ying <gnuiyl@gmail.com>]

This patch adds active plane reconfiguration support for imx-drm.
This may fixes some mode setting failure issues which were introduced
by imx-drm atomic conversion patch set.  The main idea is to disable the
plane in question in CRTC's atomic_disable operation and then the drm
atomic core will enable it again automatically.

v3->v4:
* Change the bool active_only parameter of commit_planes() to an uint32_t
  parameter named 'flags' and add two flags - DRM_PLANE_COMMIT_ACTIVE_ONLY
  and DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET.  This way, the drm atomic
  core is able to skip the atomic_disable call for the planes which are
  committed with the NO_DISABLE_AFTER_MODESET flag set.
* Fix the helper disable_planes_on_crtc(), which is needed for CRTC's
  atomic_disable callback to disable planes.
* Improve kernel-doc of CRTC's atomic_disable callback to address Daniel
  Vetter's comment.
* Do not wait for DMFC FIFO to clear to avoid timeout warning, as the
  precedure to disable display channel is changed slightly after the
  NO_DISABLE_AFTER_MODESET flag is used.

v2->v3:
* Disable all appropriate affected planes(when necessary) in CRTC's
  ->atomic_disable callback, but not in each plane's ->atomic_update callback,
  as suggested by Daniel Vetter.
* +Cc Lucas Stach, as he tested the patch v2.

v1->v2:
* Do not reject reconfiguring an active overlay plane.

Liu Ying (7):
  drm/atomic-helper: Add atomic_disable CRTC helper callback
  drm/atomic-helper: Disable appropriate planes in
    disable_planes_on_crtc()
  drm/atomic-helper: Add NO_DISABLE_AFTER_MODESET flag support for plane
    commit
  gpu: ipu-v3: Do not wait for DMFC FIFO to clear when disabling DMFC
    channel
  drm/imx: ipuv3-crtc: Use the callback ->atomic_disable instead of
    ->disable
  drm/imx: Use DRM_PLANE_COMMIT_NO_DISABLE_AFTER_MODESET flag
  drm/imx: Add active plane reconfiguration support

 drivers/gpu/drm/arm/malidp_drv.c             |  3 +-
 drivers/gpu/drm/atmel-hlcdc/atmel_hlcdc_dc.c |  2 +-
 drivers/gpu/drm/drm_atomic_helper.c          | 64 +++++++++++++++++++---------
 drivers/gpu/drm/exynos/exynos_drm_drv.c      |  2 +-
 drivers/gpu/drm/imx/imx-drm-core.c           | 30 ++++++++++++-
 drivers/gpu/drm/imx/ipuv3-crtc.c             |  8 +++-
 drivers/gpu/drm/imx/ipuv3-plane.c            | 21 ++++++---
 drivers/gpu/drm/mediatek/mtk_drm_drv.c       |  6 ++-
 drivers/gpu/drm/msm/msm_atomic.c             |  2 +-
 drivers/gpu/drm/omapdrm/omap_drv.c           |  2 +-
 drivers/gpu/drm/rcar-du/rcar_du_kms.c        |  3 +-
 drivers/gpu/drm/rockchip/rockchip_drm_fb.c   |  3 +-
 drivers/gpu/drm/sti/sti_drv.c                |  2 +-
 drivers/gpu/drm/tegra/drm.c                  |  3 +-
 drivers/gpu/drm/tilcdc/tilcdc_drv.c          |  2 +-
 drivers/gpu/drm/vc4/vc4_kms.c                |  2 +-
 drivers/gpu/drm/virtio/virtgpu_display.c     |  3 +-
 drivers/gpu/ipu-v3/ipu-dmfc.c                | 18 +-------
 include/drm/drm_atomic_helper.h              | 11 +++--
 include/drm/drm_modeset_helper_vtables.h     | 24 +++++++++++
 20 files changed, 146 insertions(+), 65 deletions(-)

-- 
2.7.4

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