drm/atomic: add commit_planes_on_crtc helper

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drm_atomic_helper_commit_planes calls all atomic_begin's first,
then updates all planes, finally calling atomic_flush.

Some drivers may want to things like disabling irq's
from their atomic_begin, in which case a second call to atomic_begin
will splat. By using commit_planes_on_crtc on each crtc in the
atomic state they'll evade that issue.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
[danvet: Extend kerneldoc a bit as discussed with Maarten on irc.]
[danvet: Squash in fixup to check for crtc_funcs in all places.
Reported by Dan Carpenter.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Maarten Lankhorst 2015-05-19 16:41:01 +02:00 • committed by Daniel Vetter

parent bdcddf95e8

commit de28d0212a

2 changed files with 63 additions and 0 deletions

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include/drm/drm_atomic_helper.h

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