drm: Kerneldoc for drm_mode_config_funcs
The meat here is definitely the detailed specs for what atomic_check and atomic_commit are supposed to do. And another candidate for a core vfunc that should be in a helper really (output_poll_changed this time around). v2: Feedback from Eric on irc: - spelling fixes. - spec what async should do - copy the event related paragraphs from page_flip and adjust - make it clear that a successful async commit is not allowed to leave the pipe dead or disabled. v3: Use FIXME comments to annotate functions that we should move to some helpers. v4: Suggestions from Thierry. Cc: Eric Anholt <eric@anholt.net> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1449218769-16577-22-git-send-email-daniel.vetter@ffwll.chReviewed-by: NThierry Reding <treding@nvidia.com>
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