Maarten Lankhorst 1b26a5e193 drm/atomic: add drm_atomic_get_existing_*_state helpers
There are cases where we want to test if a given object is
part of the state, but don't want to add them if they're not.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-05-13 11:28:22 +02:00
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