drm: Update plane->fb also for page_flip
authorDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 7 Jul 2015 06:43:03 +0000 (08:43 +0200)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Tue, 7 Jul 2015 06:45:26 +0000 (08:45 +0200)
commit3cb43cc0b408c4672ba94fe28406a90a94b1edfe
treedc8dd91ba6ab8ced418ed49113dd945f08448626
parent1f96beec7a44f46bf277e2050a7a5a0308831d61
drm: Update plane->fb also for page_flip

The legacy page_flip driver entry point is the only one left which
requires drivers to update plane->fb themselves. All the other entry
hooks will patch things up for the driver as needed since no one seems
to reliable get this right, see e.g. drm_mode_set_config_internal or
the plane->fb/old_fb handling in drm_mode_atomic_ioctl.

Therefore unify things, which allows us to ditch a TODO from
drm_atomic_helper_page_flip.

This should also help the atomic transition in i915 since we keep a
bit of legacy cruft only around because of this special behaviour in
->page_flip.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
drivers/gpu/drm/drm_atomic_helper.c
drivers/gpu/drm/drm_crtc.c