[RFC PATCH 0/3] VSP1/DU atomic interface changes

[Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>]

As part of the ongoing DU group refactoring it became apparent that we need to
split the configuration of the VSP to allow fine grain control of setting the
VSP1 mode configuration and enabling/disabling of the pipeline.

To split the mode configuration and the pipeline enablement, we add three new
calls:

 - vsp1_du_atomic_modeset()
 - vsp1_du_atomic_enable()
 - vsp1_du_atomic_disable()

To support the cross-component API, the new interface is added in [patch 1/3],
including an implementation of vsp1_du_setup_lif() to support the transition.

The DRM usage is adapted in [patch 2/3], before the call is removed entirely in
[patch 3/3]

Whilst these patches are independent and could be reviewed separately, they are
not expected to be integrated until the associated group rework is completed.

Kieran Bingham (3):
  media: vsp1: drm: Split vsp1_du_setup_lif()
  drm: rcar-du: Convert to the new VSP atomic API
  media: vsp1: drm: Remove vsp1_du_setup_lif()

 drivers/gpu/drm/rcar-du/rcar_du_crtc.c |   4 +-
 drivers/gpu/drm/rcar-du/rcar_du_vsp.c  |  21 ++-
 drivers/gpu/drm/rcar-du/rcar_du_vsp.h  |   2 +
 drivers/media/platform/vsp1/vsp1_drm.c | 188 ++++++++++++++++---------
 include/media/vsp1.h                   |  26 ++--
 5 files changed, 159 insertions(+), 82 deletions(-)

-- 
2.20.1