[PATCH v1 0/12] drm bridge updates

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This is a collection of bridge patches that I had left unfinished
more than a year ago. Now where I have some spare time I dusted them
off for review and testing.

The patches builds, but has seen no run-time testing.

The patches are grouped like this:

1+2:
  - Updates parade-ps8640 for atomic operation thus allowing
    the use of the atomic variants of drm_bridge_chain_pre_enable/
    post_disable.
    There is thus no users left of the non-atomic variants of
    drm_bridge_chain* so drop them all.
    If other drivers needs this functionality they are supposed
    to use the atomic API.
    This is a DSI to eDP converter, and I did not see a need for
    format negotiation - but I may be wrong?

3+4:
  - Drop chain_mode_fixup in mediatek, and as there are no more
    users, drop the implementation of drm_bridge_chain_mode_fixup.
    The crucial part to review is the updated documentation for
    drm_bridge_funcs.atomic_check().

5-11:
  - Convert all bridge drivers from mode_fixup to atomic_check.
    To do so add the necessary hooks to have an atomic state.
    I think the drivers will work using the atomic API,
    but it has seen no testing!
    I did not see any need for format negotiation, but if needed
    let me know so we can fix it.
    The last patch removes the mode_fixup support in drm_bridge.

12:
  - Add a few todo items, in the hope others will jump in and
    convert some of the bridge drivers to the atomic API.

The patch groups are more or less independent, and I may land them out
of order if one group is reviewed before the rest.
A few of the patches has already seen a review, but they need a
bit more exposure as last review was more than a year ago.

	Sam


Sam Ravnborg (12):
      drm/bridge: ps8640: Use atomic variants of drm_bridge_funcs
      drm/bridge: Drop unused drm_bridge_chain functions
      drm/mediatek: Drop chain_mode_fixup call in mode_valid()
      drm/bridge: Drop drm_bridge_chain_mode_fixup
      drm/bridge: sii8620: Use drm_bridge_funcs.atomic_check
      drm/bridge: cros-ec-anx7688: Use drm_bridge_funcs.atomic_check
      drm/bridge: tc358767: Use drm_bridge_funcs.atomic_check
      drm/mediatek: Drop mtk_hdmi_bridge_mode_fixup
      drm/rcar-du: lvds: Use drm_bridge_funcs.atomic_check
      drm/omapdrm: Use drm_bridge_funcs.atomic_check
      drm/bridge: Drop drm_bridge_funcs.mode_fixup
      drm/todo: Add bridge related todo items

 Documentation/gpu/todo.rst               |  20 ++++
 drivers/gpu/drm/bridge/cros-ec-anx7688.c |  28 ++++--
 drivers/gpu/drm/bridge/parade-ps8640.c   |  18 ++--
 drivers/gpu/drm/bridge/sil-sii8620.c     |  17 ++--
 drivers/gpu/drm/bridge/tc358767.c        |  21 ++---
 drivers/gpu/drm/drm_bridge.c             | 154 +------------------------------
 drivers/gpu/drm/mediatek/mtk_hdmi.c      |  19 ----
 drivers/gpu/drm/omapdrm/dss/dpi.c        |  31 ++++---
 drivers/gpu/drm/omapdrm/dss/sdi.c        |  31 ++++---
 drivers/gpu/drm/omapdrm/dss/venc.c       |  28 ++++--
 drivers/gpu/drm/rcar-du/rcar_lvds.c      |  12 ++-
 include/drm/drm_bridge.h                 |  91 ++++--------------
 12 files changed, 147 insertions(+), 323 deletions(-)





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