[PATCH 0/3] drm: remove drmm_of_get_bridge()

[Luca Ceresoli]

drmm_of_get_bridge() is deprecated. By now it is just a complicated wrapper
to of_drm_get_bridge_by_endpoint(), and it does not implement bridge
refcounting. Replace the only user and remove it.

== Grand plan

This is part of the work to support hotplug of DRM bridges.

Here's the work breakdown (➜ marks the current series):

 1. ➜ add refcounting to DRM bridges struct drm_bridge,
      based on devm_drm_bridge_alloc()
    A. ✔ add new alloc API and refcounting (v6.16)
    B. ✔ convert all bridge drivers to new API (v6.17)
    C. ✔ kunit tests (v6.17)
    D. ✔ add get/put to drm_bridge_add/remove() + attach/detach()
         and warn on old allocation pattern (v6.17)
    E. ➜ add get/put on drm_bridge accessors
       1. ✔ drm_bridge_chain_get_first_bridge(), add cleanup action (v6.18)
       2. ✔ drm_bridge_get_prev_bridge() (v6.18)
       3. ✔ drm_bridge_get_next_bridge() (v6.19)
       4. ✔ drm_for_each_bridge_in_chain() (v6.19)
       5. ✔ drm_bridge_connector_init (v6.19)
       6. ✔ protect encoder bridge chain with a mutex (v7.2)
       7. ✔ of_drm_find_bridge
          a. ✔ add of_drm_get_bridge() (v7.0),
               convert basic direct users (v7.0-v7.1)
          b. ✔ convert direct of_drm_get_bridge() users, part 2 (v7.0)
          c. ✔ convert direct of_drm_get_bridge() users, part 3 (v7.0)
          d. ✔ convert direct of_drm_get_bridge() users, part 4 (v7.1-v7.2)
          e. ✔ bridge-only drm_of_find_panel_or_bridge() users (v7.2)
       8. ➜ panel_bridge lifetime
          a. ✔ cleanup DRM_PANEL in bridge drivers (v7.4)
	  b. ✔ embed a drm_bridge in every drm_panel (v7.4)
	  c. ✔ remove *_of_get_bridge(): non-OF drivers (v7.5)
	  d. ➜ remove drmm_of_get_bridge()
	  e.   remove devm_drm_of_get_bridge()
       9. ✔ enforce drm_bridge_add before drm_bridge_attach (v6.19)
    F. ✔ debugfs improvements
       1. ✔ add top-level 'bridges' file (v6.16)
       2. ✔ show refcount and list lingering bridges (v6.19)
 2. ✔ handle gracefully atomic updates during bridge removal
    A. ✔ Add drm_bridge_enter/exit() to protect device resources (v7.0)
    B. ✔ Add drm_bridge_clear_and_put() (v7.1)
 3. ✕ DSI host-device driver interaction
 4. ✔ removing the need for the "always-disconnected" connector
 5. ✔ Migrate i.MX LCDIF driver to bridge-connector (v7.2)
 6. … DRM bridge hotplug
    A. … Bridge hotplug management in the DRM core
       1. ✔ bridge-connector: attach encoder to the connector (v7.2)
       2. … drm bridge hotplug
    B.   Device tree description

Signed-off-by: Luca Ceresoli <luca.ceresoli@xxxxxxxxxxx>
---
Luca Ceresoli (3):
      drm: adp: stop using deprecated drmm_of_get_bridge()
      drm/panel: remove drmm_of_get_bridge()
      drm/todo: remove drmm_of_get_bridge()

 Documentation/gpu/todo.rst    |  1 -
 drivers/gpu/drm/adp/adp_drv.c | 13 +++++++++----
 drivers/gpu/drm/drm_panel.c   | 40 ----------------------------------------
 include/drm/drm_panel.h       | 10 ----------
 4 files changed, 9 insertions(+), 55 deletions(-)
---
base-commit: 4524052b65a75166c1c557921c786bd82302de13
change-id: 20261106-drm-panel_bridge-remove-drmm_of_get_bridge-791bd0f0ad97

Best regards,
--  
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com