Re: [PATCH 0/7] drm/i915: Convert fbdev to DRM client

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This is version 3 of the patchset.

Am 25.09.23 um 09:26 schrieb Thomas Zimmermann:
Convert i915's fbdev code to struct drm_client. Replaces the current
ad-hoc integration. The conversion includes a number of cleanups. The
patchset also enables unloading of driver modules with in-kernel DRM
clients; a feature required by i915.

As with the other drivers' fbdev emulation, fbdev in i915 is now
an in-kernel DRM client that runs after the DRM device has been
registered. This allows to remove the asynchronous initialization.

i915 is the last driver with an fbdev emulation that is not build
upon struct drm_client. Once reviewed, the patches would ideally go
into drm-misc-next, so that the old fbdev helper code can be removed.
We can also attempt to add additional in-kernel clients. A DRM-based
dmesg log or a bootsplash are commonly mentioned. DRM can then switch
easily among the existing clients if/when required.

v3:
	* support module unloading (Jani, CI bot)
	* as before, silently ignore devices without displays (CI  bot)
v2:
	* fix error handling (Jani)
	* fix non-fbdev builds
	* various minor fixes and cleanups

Thomas Zimmermann (7):
   drm/i915: Unregister in-kernel clients
   drm/client: Do not acquire module reference
   drm/client: Export drm_client_dev_unregister()
   drm/i915: Move fbdev functions
   drm/i915: Initialize fbdev DRM client with callback functions
   drm/i915: Implement fbdev client callbacks
   drm/i915: Implement fbdev emulation as in-kernel client

  drivers/gpu/drm/drm_client.c                  |  25 +-
  drivers/gpu/drm/i915/display/intel_display.c  |   1 -
  .../drm/i915/display/intel_display_driver.c   |  19 --
  drivers/gpu/drm/i915/display/intel_fbdev.c    | 250 ++++++++++--------
  drivers/gpu/drm/i915/display/intel_fbdev.h    |  29 +-
  drivers/gpu/drm/i915/i915_driver.c            |  27 +-
  6 files changed, 156 insertions(+), 195 deletions(-)


--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)

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